TOSHIBA MMC-AP0567HP1-E (01) PDF MANUAL


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PDF Content Summary: SERVICE MANUAL AIR-CONDITIONER (MULTI TYPE) INDOOR UNIT <Ceiling type> MMC-AP0157HP1-E (TR) MMC-AP0187HP1-E (TR) MMC-AP0247HP1-E (TR) MMC-AP0277HP1-E (TR) MMC-AP0367HP1-E (TR) MMC-AP0487HP1-E (TR) MMC-AP0567HP1-E (TR) FILE NO. SVM-16042 April 2016

FILE NO. SVM-16042 Original instruction Adoption of R410A Refrigerant This Air Conditioner adopted refrigerant HFC (R410A) instead of the conventional refrigerant R22 in order to prevent destruction of the ozone layer. CONTENTS SAFETY CAUTION ................................3 1. CONSTRUCTION VIEWS (EXTERNAL VIEWS) ..............................15 1-1. MMC-AP0157HP1*, AP0187HP1* ..............................15 1-2. MMC-AP0247HP1*, AP0277HP1* ..............................16 1-3. MMC-AP0367HP1*, AP0567HP1* ..............................17 2. WIRING DIAGRAM ..............................18 3. PARTS RATING ..............................19 4. REFRIGERATION CYCLE DIAGRAM ..............................20 5. CONTROL OUTLINE ..............................21 6. CONFIGURATION OF CONTROL CIRCUIT ..............................30 7. APPLIED CONTROL ..............................38 8. TROUBLESHOOTING ..............................55 9. DETACHMENTS ..............................89 10. REPLACEMENT OF SERVICE P.C. BOARD ..............................98 11. EXPLODED VIEWS AND PARTS LIST ............................103 – 2 –

SAFETY CAUTION FILE NO. SVM-16042 Please read carefully through these instructions that contain important information which complies with the “Machinery” Directive (Directive 2006/42/EC), and ensure that you understand them. Generic Denomination: Air Conditioner Definition of Qualified Installer or Qualified Service Person The air conditioner must be installed, maintained, repaired and removed by a qualified installer or qualified service person. When any of these jobs is to be done, ask a qualified installer or qualified service person to do them for you. A qualified installer or qualified service person is an agent who has the qualifications and knowledge described in the table below. Agent Qualifications and knowledge which the agent must have s The qualified installer is a person who installs, maintains, relocates and removes the air conditioners made by Toshiba Carrier Corporation. He or she has been trained to install, maintain, relocate and remove the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such operations by an individual or individuals who have been trained and is thus thoroughly acquainted with the knowledge related to these operations. s The qualified installer who is allowed to do the electrical work involved in installation, relocation and removal has the qualifications pertaining to this electrical work as stipulated by the local laws and regulations, and he or she is a person who has been trained in matters relating to electrical work on the air conditioners made by Toshiba Carrier Corporation or, alternatively, he Qualified installer Qualified service person or she has been instructed in such matters by an individual or individuals who have been trained and is thus thoroughly acquainted with the knowledge related to this work. s The qualified installer who is allowed to do the refrigerant handling and piping work involved in installation, relocation and removal has the qualifications pertaining to this refrigerant handling and piping work as stipulated by the local laws and regulations, and he or she is a person who has been trained in matters relating to refrigerant handling and piping work on the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such matters by an individual or individuals who have been trained and is thus thoroughly acquainted with the knowledge related to this work. s The qualified installer who is allowed to work at heights has been trained in matters relating to working at heights with the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such matters by an individual or individuals who have been trained and is thus thoroughly acquainted with the knowledge related to this work. s The qualified service person is a person who installs, repairs, maintains, relocates and removes the air conditioners made by Toshiba Carrier Corporation. He or she has been trained to install, repair, maintain, relocate and remove the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such operations by an individual or individuals who have been trained and is thus thoroughly acquainted with the knowledge related to these operations. s The qualified service person who is allowed to do the electrical work involved in installation, repair, relocation and removal has the qualifications pertaining to this electrical work as stipulated by the local laws and regulations, and he or she is a person who has been trained in matters relating to electrical work on the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such matters by an individual or individuals who have been trained and is thus thoroughly acquainted with the knowledge related to this work. s The qualified service person who is allowed to do the refrigerant handling and piping work involved in installation, repair, relocation and removal has the qualifications pertaining to this refrigerant handling and piping work as stipulated by the local laws and regulations, and he or she is a person who has been trained in matters relating to refrigerant handling and piping work on the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such matters by an individual or individuals who have been trained and is thus thoroughly acquainted with the knowledge related to this work. s The qualified service person who is allowed to work at heights has been trained in matters relating to working at heights with the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such matters by an individual or individuals who have been trained and is thus thoroughly acquainted with the knowledge related to this work. – 3 – FILE NO. SVM-16042 Definition of Protective Gear When the air conditioner is to be transported, installed, maintained, repaired or removed, wear protective gloves and ‘safety’ work clothing. In addition to such normal protective gear, wear the protective gear described below when undertaking the special work detailed in the table below. Failure to wear the proper protective gear is dangerous because you will be more susceptible to injury, burns, electric shocks and other injuries. Work undertaken All types of work Protective gloves ‘Safety’ working clothing Protective gear worn Electrical-related work Work done at heights (50 cm or more) Transportation of heavy objects Repair of outdoor unit Gloves to provide protection for electricians Insulating shoes Clothing to provide protection from electric shock Helmets for use in industry Shoes with additional protective toe cap Gloves to provide protection for electricians The important contents concerned to the safety are described on the product itself and on this Service Manual. Please read this Service Manual after understanding the described items thoroughly in the following contents (Indications / Illustrated marks), and keep them. [Explanation of indications] noitacidnI noitanalpxE DANGER Indicates contents assumed that an imminent danger causing a death or serious injury of the repair engineers and the third parties when an incorrect work has been executed. WARNING CAUTION Indicates possibilities assumed that a danger causing a death or serious injury of the repair engineers, the third parties, and the users due to troubles of the product after work when an incorrect work has been executed. Indicates contents assumed that an injury or property damage (*) may be caused on the repair engineers, the third parties, and the users due to troubles of the product after work when an incorrect work has been executed. * Property damage: Enlarged damage concerned to property, furniture, and domestic animal / pet [Explanation of illustrated marks] noitacidnI noitanalpxE Indicates prohibited items (Forbidden items to do) The sentences near an illustrated mark describe the concrete prohibited contents. Indicates mandatory items (Compulsory items to do) The sentences near an illustrated mark describe the concrete mandatory contents. Indicates cautions (Including danger / warning) The sentences or illustration near or in an illustrated mark describe the concrete cautious contents. – 4 –

FILE NO. SVM-16042 Warning Indications on the Air Conditioner Unit [Confirmation of warning label on the main unit] Confirm that labels are indicated on the specified positions If removing the label during parts replace, stick it as the original. noitacidni gninraW noitpircseD WARNING WARNING

ELECTRICAL SHOCK HAZARD Disconnect all remote electric power supplies before servicing. ELECTRICAL SHOCK HAZARD Disconnect all remote electric power supplies before servicing.

WARNING WARNING

Moving parts. Do not operate unit with grille removed. Stop the unit before the servicing. Moving parts. Do not operate unit with grille removed. Stop the unit before the servicing.

CAUTION CAUTION

High temperature parts. You might get burned when removing this panel. High temperature parts. You might get burned when removing this panel.

CAUTION CAUTION

Do not touch the aluminium fins of the unit. Doing so may result in injury. Do not touch the aluminium fins of the unit. Doing so may result in injury.

CAUTION CAUTION

BURST HAZARD Open the service valves before the operation, otherwise there might be the burst. BURST HAZARD Open the service valves before the operation, otherwise there might be the burst.

CAUTION CAUTION

Do not climb onto the fan guard. Doing so may result in injury. Do not climb onto the fan guard. Doing so may result in injury.

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FILE NO. SVM-16042 Precaution for Safety The manufacturer shall not assume any liability for the damage caused by not observing the description of this manual. DANGER Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit breaker to the OFF position. Otherwise, electric shocks may result. Before opening the electrical control box cover of the indoor unit or service panel of the outdoor unit, set the circuit breaker to the OFF position. Failure to set the circuit breaker to the OFF position may result in electric shocks through contact with the interior parts. Only a qualified installer (1) or qualified service person (1) is allowed to remove the electrical control box cover of the indoor unit or service panel of the outdoor unit and do the work required. Turn off breaker. Electric shock hazard Prohibition Stay on protection Before starting to repair the outdoor unit fan or fan guard, be absolutely sure to set the circuit breaker to the OFF position, and place a "Work in progress" sign on the circuit breaker. When cleaning the filter or other parts of the indoor unit, set the circuit breaker to OFF without fail, and place a "Work in progress" sign near the circuit breaker before proceeding with the work. When checking the electric parts, removing the cover of the electric parts box of Indoor Unit and/or service panel of Outdoor Unit inevitably to determine the failure, use gloves to provide protection for electricians, insulating shoes, clothing to provide protection from electric shock and insulating tools. Be careful not to touch the live part. Electric shock may result. Only "Qualified service person" is allowed to do this work. Before operating the air conditioner after having completed the work, check that the electrical parts box cover of the indoor unit and service panel of the outdoor unit are closed, and set the circuit breaker to the ON position. You may receive an electric shock if the power is turned on without first conducting these checks. When checking the electric parts, removing the cover of the electric parts box of Indoor Unit and/or front panel of Outdoor Unit inevitably to determine the failure, put a sign "Do not enter" around the site before the work. Failure to do this may result in third person getting electric shock. Place a "Work in progress" sign near the circuit breaker while the installation, maintenance, repair or removal work is being carried out. There is a danger of electric shocks if the circuit breaker is set to ON by mistake. When checking the electric parts, removing the cover of the electric parts box of Indoor Unit and/or front panel of Outdoor Unit inevitably to determine the failure, put a sign "Do not enter" around the site before the work. Failure to do this may result in third person getting electric shock. If, in the course of carrying out repairs, it becomes absolutely necessary to check out the electrical parts with the electrical parts box cover of one or more of the indoor units and the service panel of the outdoor unit removed in order to find out exactly where the trouble lies, wear insulated heat-resistant gloves, insulated boots and insulated work overalls, and take care to avoid touching any live parts. You may receive an electric shock if you fail to heed this warning. Only qualified service person (1) is allowed to do this kind of work. WARNING Before starting to repair the air conditioner, read carefully through the Service Manual, and repair the air conditioner by following its instructions. Only qualified service person (1) is allowed to repair the air conditioner. Repair of the air conditioner by unqualified person may give rise to a fire, electric shocks, injury, water leaks and/or other problems. General Only a qualified installer (1) or qualified service person (1) is allowed to carry out the electrical work of the air conditioner. Under no circumstances must this work be done by an unqualified individual since failure to carry out the work properly may result in electric shocks and/or electrical leaks. – 6 – General Check earth wires. Prohibition of modification. Use specified parts. Do not bring a child close to the equipment. FILE NO. SVM-16042 Electrical wiring work shall be conducted according to law and regulation in the community and Installation manual. Failure to do so may result in electrocution or short circuit. To connect the electrical wires, repair the electrical parts or undertake other electrical jobs, wear gloves to provide protection for electricians, insulating shoes and clothing to provide protection from electric shocks. Failure to wear this protective gear may result in electric shocks. Before opening the intake grille, set the circuit breaker to the OFF position. Failure to set the circuit breaker to the OFF position may result in injury through contact with the rotation parts. Only a qualified installer or qualified service person is allowed to remove the intake grille and do the work required. Use wiring that meets the specifications in the Installation Manual and the stipulations in the local regulations and laws. Use of wiring which does not meet the specifications may give rise to electric shocks, electrical leakage, smoking and/or a fire. Only a qualified installer (1) or qualified service person (1) is allowed to undertake work at heights using a stand of 50 cm or more or to remove the electrical control box cover of the indoor unit to undertake work. When working at heights, use a ladder which complies with the ISO 14122 standard, and follow the procedure in the ladders instructions. Also wear a helmet for use in industry as protective gear to undertake the work. Before working at heights, put a sign in place so that no-one will approach the work location, before proceeding with the work. Parts and other objects may fall from above, possibly injuring a person below. While carrying out the work, wear a helmet for protection from falling objects. Before opening the intake grille of the indoor unit or service panel of the outdoor unit, set the circuit breaker to the OFF position. Failure to set the circuit breaker to the OFF position may result in electric shocks through contact with the interior parts. Only a qualified installer or qualified service person is allowed to remove the intake grille of the indoor unit or service panel of the outdoor unit and do the work required. Do not touch the aluminum fin of the unit. You may injure yourself if you do so. If the fin must be touched for some reason, first put on protective gloves and safety work clothing, and then proceed. Use forklift to carry in the air conditioner units and use winch or hoist at installation of them. When the air conditioner is to be transported, installed, maintained, repaired or removed, wear protective gloves and 'safety' work clothing. When transporting the air conditioner, do not take hold of the bands around the packing carton. You may injure yourself if the bands should break. When transporting the air conditioner, wear shoes with protective toe caps, protective gloves and other protective clothing. This air conditioner has passed the pressure test as specified in IEC 60335-2-40 Annex EE. Before troubleshooting or repair work, check the earth wire is connected to the earth terminals of the main unit, otherwise an electric shock is caused when a leak occurs.If the earth wire is not correctly connected, contact an electric engineer for rework. After completing the repair or relocation work, check that the ground wires are connected properly. Connect earth wire. (Grounding work) Incomplete grounding causes an electric shock. Do not connect ground wires to gas pipes, water pipes, and lightning rods or ground wires for telephone wires. Do not modify the products.Do not also disassemble or modify the parts. It may cause a fire, electric shock or injury. When any of the electrical parts are to be replaced, ensure that the replacement parts satisfy the specifications given in the Service Manual (or use the parts contained on the parts list in the Service Manual). Use of any parts which do not satisfy the required specifications may give rise to electric shocks,smoking and/or a fire. If, in the course of carrying out repairs, it becomes absolutely necessary to check out the electrical parts with the electrical parts box cover of one or more of the indoor units and the service panel of the outdoor unit removed in order to find out exactly where the trouble lies, place "Keep out" signs around the work site before proceeding. Third-party individuals may enter the work site and receive electric shocks if this warning is not heeded. – 7 – Insulating measures No fire Refrigerant Assembly/ Cabling Insulator check Ventilation FILE NO. SVM-16042 Connect the cut-off lead wires with crimp contact, etc, put the closed end side upward and then apply a water-cut method, otherwise a leak or production of fire is caused at the users' side. When performing repairs using a gas burner, replace the refrigerant with nitrogen gas because the oil that coats the pipes may otherwise burn. When repairing the refrigerating cycle, take the following measures. Be attentive to fire around the cycle. 1) When using a gas stove, etc, be sure to put out fire before work; otherwise the oil mixed with refrigerant gas may catch fire. Do not use a welder in the closed room. 2) When using it without ventilation, carbon monoxide poisoning may be caused. Do not bring inflammables close to the refrigerant cycle, otherwise fire of the welder may catch 3) the inflammables. The refrigerant used by this air conditioner is the R410A. Check the used refrigerant name and use tools and materials of the parts which match with it. For the products which use R410A refrigerant, the refrigerant name is indicated at a position on the outdoor unit where is easy to see. To prevent miss-charging, the route of the service port is changed from one of the former R22. Do not use any refrigerant different from the one specified for complement or replacement. Otherwise, abnormally high pressure may be generated in the refrigeration cycle, which may result in a failure or explosion of the product or an injury to your body. For an air conditioner which uses R410A, never use other refrigerant than R410A. For an air conditioner which uses other refrigerant (R22, etc.), never use R410A. If different types of refrigerant are mixed, abnormal high pressure generates in the refrigerating cycle and an injury due to breakage may be caused. Do not charge refrigerant additionally. If charging refrigerant additionally when refrigerant gas leaks, the refrigerant composition in the refrigerating cycle changes resulted in change of air conditioner characteristics or refrigerant over the specified standard amount is charged and an abnormal high pressure is applied to the inside of the refrigerating cycle resulted in cause of breakage or injury. Therefore if the refrigerant gas leaks, recover the refrigerant in the air conditioner, execute vacuuming, and then newly recharge the specified amount of liquid refrigerant. In this time, never charge the refrigerant over the specified amount. When recharging the refrigerant in the refrigerating cycle, do not mix the refrigerant or air other than R410A into the specified refrigerant. If air or others is mixed with the refrigerant, abnormal high pressure generates in the refrigerating cycle resulted in cause of injury due to breakage. After installation work, check the refrigerant gas does not leak. If the refrigerant gas leaks in the room, poisonous gas generates when gas touches to fire such as fan heater, stove or cocking stove though the refrigerant gas itself is innocuous. Never recover the refrigerant into the outdoor unit. When the equipment is moved or repaired, be sure to recover the refrigerant with recovering device. The refrigerant cannot be recovered in the outdoor unit; otherwise a serious accident such as breakage or injury is caused. After repair work, surely assemble the disassembled parts, and connect and lead the removed wires as before. Perform the work so that the cabinet or panel does not catch the inner wires. If incorrect assembly or incorrect wire connection was done, a disaster such as a leak or fire is caused at user's side. After the work has finished, be sure to use an insulation tester set (500V Megger) to check the resistance is 1MΩ or more between the charge section and the non-charge metal section (Earth position). If the resistance value is low, a disaster such as a leak or electric shock is caused at user's side. When the refrigerant gas leaks during work, execute ventilation. If the refrigerant gas touches to a fire, poisonous gas generates. A case of leakage of the refrigerant and the closed room full with gas is dangerous because a shortage of oxygen occurs. Be sure to execute ventilation. If refrigerant gas has leaked during the installation work, ventilate the room immediately. If the leaked refrigerant gas comes in contact with fire, noxious gas may generate. After installation work, check the refrigerant gas does not leak. If the refrigerant gas leaks in the room, poisonous gas generates when gas touches to fire such as fan heater, stove or cocking stove though the refrigerant gas itself is innocuous. – 8 –

Compulsion Check after repair Do not operate the unit with the valve closed. Check after reinstallation Cooling check FILE NO. SVM-16042 When the refrigerant gas leaks, find up the leaked position and repair it surely. If the leaked position cannot be found up and the repair work is interrupted, pump-down and tighten the service valve, otherwise the refrigerant gas may leak into the room. The poisonous gas generates when gas touches to fire such as fan heater, stove or cocking stove though the refrigerant gas itself is innocuous. When installing equipment which includes a large amount of charged refrigerant such as a multi air conditioner in a sub-room, it is necessary that the density does not the limit even if the refrigerant leaks. If the refrigerant leaks and exceeds the limit density, an accident of shortage of oxygen is caused. Tighten the flare nut with a torque wrench in the specified manner. Excessive tighten of the flare nut may cause a crack in the flare nut after a long period, which may result in refrigerant leakage. Nitrogen gas must be used for the airtight test. The charge hose must be connected in such a way that it is not slack. For the installation/moving/reinstallation work, follow to the Installation Manual. If an incorrect installation is done, a trouble of the refrigerating cycle, water leak, electric shock or fire is caused. Once the repair work has been completed, check for refrigerant leaks, and check the insulation resistance and water drainage. Then perform a trial run to check that the air conditioner is running properly. After repair work has finished, check there is no trouble. If check is not executed, a fire, electric shock or injury may be caused. For a check, turn off the power breaker. After repair work (installation of front panel and cabinet) has finished, execute a test run to check there is no generation of smoke or abnormal sound. If check is not executed, a fire or an electric shock is caused. Before test run, install the front panel and cabinet. Check the following matters before a test run after repairing piping. Connect the pipes surely and there is no leak of refrigerant. The valve is opened. Running the compressor under condition that the valve closes causes an abnormal high pressure resulted in damage of the parts of the compressor and etc. and moreover if there is leak of refrigerant at connecting section of pipes, the air is suctioned and causes further abnormal high pressure resulted in burst or injury. Only a qualified installer (1) or qualified service person (1) is allowed to relocate the air conditioner. It is dangerous for the air conditioner to be relocated by an unqualified individual since a fire, electric shocks, injury, water leakage, noise and/or vibration may result. Check the following items after reinstallation. 1) The earth wire is correctly connected. 2) The power cord is not caught in the product. 3) There is no inclination or unsteadiness and the installation is stable. If check is not executed, a fire, an electric shock or an injury is caused. When carrying out the pump-down work shut down the compressor before disconnecting the refrigerant pipe. Disconnecting the refrigerant pipe with the service valve left open and the compressor still operating will cause air, etc. to be sucked in, raising the pressure inside the refrigeration cycle to an abnormally high level, and possibly resulting in reputing, injury, etc. When the service panel of the outdoor unit is to be opened in order for the compressor or the area around this part to be repaired immediately after the air conditioner has been shut down, set the circuit breaker to the OFF position, and then wait at least 10 minutes before opening the service panel. If you fail to heed this warning, you will run the risk of burning yourself because the compressor pipes and other parts will be very hot to the touch. In addition, before proceeding with the repair work, wear the kind of insulated heat-resistant gloves designed to protect electricians. When the service panel of the outdoor unit is to be opened in order for the fan motor, reactor, inverter or the areas around these parts to be repaired immediately after the air conditioner has been shut down, set the circuit breaker to the OFF position, and then wait at least 10 minutes before opening the service panel. If you fail to heed this warning, you will run the risk of burning yourself because the fan motor, reactor, inverter heat sink and other parts will be very hot to the touch. In addition, before proceeding with the repair work, wear the kind of insulated heat-resistant gloves designed to protect electricians.

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Installation FILE NO. SVM-16042 Only a qualified installer or service person is allowed to do installation work. Inappropriate installation may result in water leakage, electric shock or fire. Before starting to install the air conditioner, read carefully through the Installation Manual, and follow its instructions to install the air conditioner. If the unit is installed in a small room, take appropriate measures to prevent the refrigerant from exceeding the limit concentration even if it leaks. Consult the dealer from whom you purchased the air conditioner when you implement the measures. Accumulation of highly-concentrated refrigerant may cause an oxygen deficiency accident. Do not install the air conditioner in a location that may be subject to a risk of expire to a combustible gas. If a combustible gas leaks and becomes concentrated around the unit, a fire may occur. Install the indoor unit at least 2.5 m above the floor level since otherwise the users may injure themselves or receive electric shocks if they poke their fingers or other objects into the indoor unit while the air conditioner is running. Install a circuit breaker that meets the specifications in the installation manual and the stipulations in the local regulations and laws. Install the circuit breaker where it can be easily accessed by the agent. Do not place any combustion appliance in a place where it is directly exposed to the wind of air conditioner, otherwise it may cause imperfect combustion. Explanations given to user If you have discovered that the fan grille is damaged, do not approach the outdoor unit but set the circuit breaker to the OFF position, and contact a qualified service person to have the repairs done. Do not set the circuit breaker to the ON position until the repairs are completed. Relocation s Only a qualified installer (*1) or qualified service person (*1) is allowed to relocate the air conditioner. It is dangerous for the air conditioner to be relocated by an unqualified individual since a fire, electric shocks, injury, water leakage, noise and / or vibration may result. s When carrying out the pump-down work shut down the compressor before disconnecting the refrigerant pipe. Disconnecting the refrigerant pipe with the service valve left open and the compressor still operating will cause air, etc. to be sucked in, raising the pressure inside the refrigeration cycle to an abnormally high level, and possibly resulting in reputing, injury, etc. (*1) Refer to the “Definition of Qualified Installer or Qualified Service Person” – 10 – Manufacturer: Authorized Representative/TCF holder: FILE NO. SVM-16042 Declaration of Conformity TOSHIBA CARRIER (THAILAND) CO., LTD. 144 / 9 Moo 5, Bangkadi Industrial Park, Tivanon Road, Tambol Bangkadi, Amphur Muang, Pathumthani 12000, Thailand Nick Ball Toshiba EMEA Engineering Director Toshiba Carrier UK Ltd. Porsham Close, Belliver Industrial Estate, PLYMOUTH, Devon, PL6 7DB. United Kingdom Hereby declares that the machinery described below: Generic Denomination: Model/type: Air Conditioner MMC-AP0157HP1-E MMC-AP0187HP1-E MMC-AP0247HP1-E MMC-AP0277HP1-E MMC-AP0367HP1-E MMC-AP0487HP1-E MMC-AP0567HP1-E MMC-AP0157HP1-TR MMC-AP0187HP1-TR MMC-AP0247HP1-TR MMC-AP0277HP1-TR MMC-AP0367HP1-TR MMC-AP0487HP1-TR MMC-AP0567HP1-TR Commercial name: Super Modular Multi System Air Conditioner Super Heat Recovery Multi System Air Conditioner MiNi-Super Modular Multi System Air Conditioner (MiNi-SMMS series) Complies with the provisions of the “Machinery” Directive (Directive 2006/42/EC) and the regulations transposing into national law. Complies with the provisions of the following harmonized standard: EN 378-2: 2008 + A2: 2012 Note: This declaration becomes invalid if technical or operational modifications are introduced without the manufacturer’s consent. – 11 –

FILE NO. SVM-16042 Specifications Model Sound pressure level (dBA) Weight (kg) Cooling Heating MMC-AP0157HP1-E ∗ ∗ 23 MMC-AP0187HP1-E ∗ ∗ 23 MMC-AP0247HP1-E ∗ ∗ 29 MMC-AP0277HP1-E ∗ ∗ 29 MMC-AP0367HP1-E ∗ ∗ 35 MMC-AP0487HP1-E ∗ ∗ 35 MMC-AP0567HP1-E ∗ ∗ 35 MMC-AP0157HP1-TR ∗ ∗ 23 MMC-AP0187HP1-TR ∗ ∗ 23 MMC-AP0247HP1-TR ∗ ∗ 29 MMC-AP0277HP1-TR ∗ ∗ 29 MMC-AP0367HP1-TR ∗ ∗ 35 MMC-AP0487HP1-TR ∗ ∗ 35 MMC-AP0567HP1-TR ∗ ∗ 35 ∗: Under 70 dBA – 12 – FILE NO. SVM-16042 • R410A Refrigerant This air conditioner adopted HFC type refrigerant (R410A) which does not deplete the ozone layer. 1. Safety Caution Concerned to R410A Refrigerant The pressure of R410A is high 1.6 times of that of the former refrigerant (R22). Accompanied with change of refrigerant, the refrigerating oil has been also changed. Therefore, be sure that water, dust, the former refrigerant or the former refrigerating oil is not mixed into the refrigerating cycle of the air conditioner with R410A refrigerant during installation work or service work. If an incorrect work or incorrect service is performed, there is a possibility to cause a serious accident. Use the tools and materials exclusive to R410A to purpose a safe work. 2. Cautions on Installation/Service 1) Do not mix the other refrigerant or refrigerating oil. For the tools exclusive to R410A, shapes of all the joints including the service port differ from those of the former refrigerant in order to prevent mixture of them. 2) As the use pressure of the R410A refrigerant is high, use material thickness of the pipe and tools which are specified for R410A. 3) In the installation time, use clean pipe materials and work with great attention so that water and others do not mix in because pipes are affected by impurities such as water, oxide scales, oil, etc. Use the clean pipes. Be sure to brazing with flowing nitrogen gas. (Never use gas other than nitrogen gas.) 4) For the earth protection, use a vacuum pump for air purge. 5) R410A refrigerant is azeotropic mixture type refrigerant. Therefore use liquid type to charge the refrigerant. (If using gas for charging, composition of the refrigerant changes and then characteristics of the air conditioner change.) 3. Pipe Materials For the refrigerant pipes, copper pipe and joints are mainly used. It is necessary to select the most appropriate pipes to conform to the standard. Use clean material in which impurities adhere inside of pipe or joint to a minimum. 1) Copper pipe <Piping> The pipe thickness, flare finishing size, flare nut and others differ according to a refrigerant type. When using a long copper pipe for R410A, it is recommended to select “Copper or copper-base pipe without seam” and one with bonded oil amount 40mg/10m or less. Also do not use crushed, deformed, discolored (especially inside) pipes. (Impurities cause clogging of expansion valves and capillary tubes.) <Flare nut> Use the flare nuts which are attached to the air conditioner unit. 2) Joint The flare joint and socket joint are used for joints of the copper pipe. The joints are rarely used for installation of the air conditioner. However clear impurities when using them. – 13 –

FILE NO. SVM-16042 4. Tools 1. Required Tools for R410A Mixing of different types of oil may cause a trouble such as generation of sludge, clogging of capillary, etc. Accordingly, the tools to be used are classified into the following three types. 1) Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22)) 2) Tools exclusive for R410A, but can be also used for conventional refrigerant (R22) 3) Tools commonly used for R410A and for conventional refrigerant (R22) The table below shows the tools exclusive for R410A and their interchangeability. Tools exclusive for R410A (The following tools for R410A are required.) Tools whose specifications are changed for R410A and their interchangeability No. Used tool Flare tool Copper pipe gauge for adjusting projection margin Torque wrench Gauge manifold Charge hose Vacuum pump adapter Electronic balance for refrigerant charging Refrigerant cylinder Leakage detector Usage Pipe flaring Flaring by conventional flare tool Tightening of flare nut Evacuating, refrigerant charge, run check, etc. Vacuum evacuating Refrigerant charge Refrigerant charge Gas leakage check R410A air conditioner installation Existence of Whether conven new equipment tional equipment for R410A can be used Yes *(Note) Yes *(Note) Yes No Yes No Yes No Yes Yes Yes No Yes No Conventional air conditioner installation Whether conventional equipment can be used Yes *(Note) No No Yes Yes No Yes (Note) When flaring is carried out for R410A using the conventional flare tools, adjustment of projection margin is necessary. For this adjustment, a copper pipe gauge, etc. are necessary. General tools (Conventional tools can be used.) In addition to the above exclusive tools, the following equipments which serve also for R22 are necessary as the general tools. 1) Vacuum pump. Use vacuum pump by attaching vacuum pump adapter. 7) Screwdriver (+, –) hcnerw euqroT)2 hcnerw yeknoM ro rennapS)8 rettuc epiP)3 llird eroc eloH)9 remaeR)4 )mm4 edis etisoppO( hcnerw nogaxeH)01 redneb epiP)5 erusaem epaT)11 laiv leveL)6 was lateM)21 Also prepare the following equipments for other installation method and run check. retem pmalC)1 )reggeM( retset ecnatsiser noitalusnI)3 retemomrehT)2 epocsortcelE)4 – 14 – FILE NO. SVM-16042 1. CONSTRUCTION VIEWS (EXTERNAL VIEWS) 1-1. Indoor Unit MMC-AP0157HP*, AP0187HP* – 15 –

FILE NO. SVM-16042 MMC-AP0247HP*, AP0277HP* 7 . 2 4 1 . 6 – 16 –

FILE NO. SVM-16042 MMC-AP0367HP* to AP0567HP* – 17 –

FILE NO. SVM-16042 2. WIRING DIAGRAM – 18 –

FILE NO. SVM-16042 3. PARTS RATING Parts name Model Specifi cations MMC-AP***7HP* 015 018 024 027 036 048 056 ICF-340WD94-1 - ⚪ ⚪ - --- Fan motor ICF-340WD94-2 - - - ⚪ ⚪ --- ICF-340WD139-1 - ---- ⚪⚪⚪ Louver motor MP2423N - ⚪⚪⚪⚪⚪⚪⚪ Pulse motor EFM-MD12TF - ⚪⚪⚪⚪⚪⚪⚪ EFM-40YGTF-1 - ⚪ ⚪ ----- Pulse motor valve EFM-40YGTCTH-2 - - - ⚪ ⚪ --- EFM-60YGTCTH-1 - - - - - ⚪⚪⚪ TA sensor - 518 mm ⚪⚪⚪⚪⚪⚪⚪ TC1 sensor - Ø4 mm, 1000 mm ⚪⚪⚪⚪⚪⚪⚪ TC2 sensor - Ø6 mm, 1000 mm ⚪⚪⚪⚪⚪⚪⚪ TCJ sensor - Ø6 mm, 1000 mm ⚪⚪⚪⚪⚪⚪⚪ – 19 – FILE NO. SVM-16042 4. REFRIGERATION CYCLE DIAGRAM Liquid side Gas side Strainer Capillary tubes Pulse Motor Valve (PMV) Strainer Sensor (TCJ) Sensor (TC2) Functional part name Heat exchanger at indoor side Fan Sensor M Fan motor (TA) Functional outline Sensor (TC1) Pulse Motor Valve PMV Temp. sensor 1. TA 2. TC1 3. TC2 4. TCJ (Connector CN82 (6P): Blue) 1) Controls super heat in cooling operation 2) Controls under cool in heating operation 3) Recovers refrigerant oil in cooling operation 4) Recovers refrigerant oil in heating operation (Connector CN104 (2P): Yellow) 1) Detects indoor suction temperature (Connector CN100 (3P): Brown) 1) Controls PMV super heat in cooling operation (Connector CN101 (2P): Black) 1) Controls PMV under cool in heating operation (Connector CN102 (2P): Red) 1) Controls PMV super heat in cooling operation – 20 –

FILE NO. SVM-16042 5. CONTROL OUTLINE 5-1. Control Specifications

No. 1 2 Item When power supply is reset Operation mode selection Outline of specifications 1) Distinction of outdoor unit When the power supply is reset, the outdoors are distinguished and the control is selected according to the distinguished result. 2) Setting of indoor fan speed and existence of air direction adjustment Based on EEPROM data, select setting of the indoor fan speed and the existence of air direction adjustment. 3) If resetting the power supply during occurrence of a trouble, the check code is once cleared. After ON/OFF button of the remote controller was pushed and the operation was resumed, if the abnormal status continues, the check code is again displayed on the remote controller. 1) Based on the operation mode selecting command from the remote controller, the operation mode is selected. Remote Remarks

controller command STOP FAN COOL DRY HEAT AUTO (SHRM only) +1.0 Control outline Air conditioner stops. Fan operation Cooling operation Dry operation Heating operation s Ta and Ts automatically select COOL/ HEAT operation mode for operation. s The operation is performed as shown in the following figure according to Ta value at the first time only. (In the range of Ts – 1 < Ta < Ts + 1, Cooling thermo. OFF (Fan) / Setup air volume operation continues.) Cooling thermo. ON Ta: Room temp. Ts: Setup temp.

Ta (°C) Ts –1.0 Cooling thermo. OFF (at the first time only) Heating thermo. ON

3 Room temp. ∗ In the SMMS-i and Mini-SMMS, the automatic mode cannot be selected. While a wireless remote controller is used, the mode is notified by “Pi Pi” (two times) receiving sound and the alternate flashing of [TIMER ] and [READY To clear the alternate flashing, change the ]. mode on the wireless remote controller. 1) Adjustment range: Remote controller setup temperature (°C)

control Wired type Wireless type COOL/DRY 18 to 29 18 to 30 HEAT 18 to 29 17 to 30 AUTO∗ 18 to 29 17 to 27 ∗ For SHRM only

– 21 –

No. 3 Item Room temp. control Outline of specifications o 2) Using the CODE N . 06, the setup temperature in heating operation can be corrected. FILE NO. SVM-16042 Remarks Shift of suction temperature in heating (Continued) Setup data Setup temp. correction 0246 +0°C +2°C +4°C +6°C operation Except while sensor of the remote controller is 4 Automatic capacity control controlled Setting at shipment Setup data 2 1) Based on the difference between Ta and Ts, the opera tion capacity is determined by the outdoor unit. Ta (°C) +2 COOL HEAT Ta (°C) +1 SD S0 S3 SB +1 Ts S9 S7 Ts –1 S5 S3 S0 –1 –2 S5 S7 S9 SB SD SF Ts: Setup temp. Ta: Room temp. 5 Automatic cooling/heating control ∗ For SHRM only 1) The judgment of selecting COOL/HEAT is carried out as shown below. When +1.5 exceeds against Tsh 10 minutes OFF, heating operation (Thermo. OFF) exchanges to cooling operation. Description in the parentheses shows an example of cooling ON/OFF. ∗ For SHRM only Tsc: Setup temp. in cooling operation Tsh: Setup temp. in heating operation + temp. correction of room temp. control or Ta (°C) +1.5 Tsc Tsh -1.5 Cooling (Cooling OFF) (Cooling ON) Heating When –1.5 lowers against Tsc 10 minutes and after thermo. OFF, cooling operation (Thermo. OFF) exchanges to heating operation. 2) For the automatic capacity control after judgment of cooling/heating, see Item 4. 3) For temperature correction of room temp. control in automatic heating, see Item 3. – 22 –

No. 6 Item Air speed selection Outline of specifications 1) Operation with (HH), (H), (L) or [AUTO] mode is carried out by the command from the remote controller. 2) When the air speed mode [AUTO] is selected, the air speed varies by the difference between Ta and Ts. <COOL> Ta (°C) FILE NO. SVM-16042 Remarks HH > H+ > H > L+ > L > UL

+3.0 +2.5 +2.0 +1.5 +1.0 +0.5 Tsc –0.5 HH <HH> H+ <HH> H <HH> L+ <H+> L <H> L <H> L <L+> A B C D E F G

< > : Indicate automatic cooling. s Controlling operation in case when thermo of remote controller works is same as a case when thermo of the body works. s If the air speed has been changed once, it is not changed for 3 minutes. However when the air volume is exchanged, the air speed changes. s When cooling operation has started, select a down ward slope for the air speed, that is, the high position. s If the temperature is just on the difference boundary, the air speed does not change. <HEAT> Ta (°C) Code No. 32 0000: Body thermo. (Main unit) 0001: Remote controller thermo.

(–0.5) –1.0 (0) Tsh (+0.5) +1.0 (+1.0) +2.0 (+1.5) +3.0 (+2.0) +4.0 L <L+> L+ <H> H <H+> H+ <HH> HH <HH> E D C B A

< > : Indicate automatic heating. Body thermostat works. Remote controller thermostat works. Value in the parentheses indicates one when thermostat of the remote controller works. Value without parentheses indicates one when thermo stat of the body works. s If the air speed has been changed once, it is not changed for 1 minute. However when the air speed exchanged, the air speed changes. s When heating operation has started, select an upward slope for the air speed, that is, the high position. s If the temperature is just on the difference boundary, the air speed does not change. – 23 –

No. 6 Item Air speed selection (Continued): FILE NO. SVM-16042 Outline of specifications Remarks Selection of high ceiling type CODE No. : [5d] or selection of high ceiling on P.C. board SW501 CODE No. [5d] Standard Type 1 Type 3 0000 0001 0003 SW501 (1)/(2) OFF/OFF ON/OFF OFF/ON Tap COOL HEAT COOL HEAT COOL HEAT F1 HH HH F2 HH HH F3 H+ H+, H H+, H F4 H+ F5 HH H F6 HH H L+ L+ F7 H+ H+ L L F8 H L+ F9 H L+ L FA L+ L FB L+ L FC L FD LL LL LL3) In heating operation, the mode changes to [LL] if thermostat is turned off. 7 Prevention of cold air discharge 1. In heating operation, the higher temperature of TC2 sensor and TCJ sensor is compared with temperature of TC1 sensor and then the lower temperature is used to set the upper limit of the fan tap. s When B zone has continued for 6 minutes, the operation shifts to C zone. s In defrost time, the control point is set to +6°C. TCJ: Temperature of indoor heat exchanger sensor s In D and E zones, priority is given to remote control ler air speed setup. s In A zone “ ” is displayed. (°C) 32 30 28 26 20 16 D C E B A A zone: OFF B zone: Over 26°C, below 28°C, ULTRA LOW (LL) C zone: Over 28°C, below 30°C, LOW (L) D zone: Over 30°C, below 32°C, MED (H) E zone: HIGH (HH) – 24 – No. Item FILE NO. SVM-16042 Outline of specifications Remarks 8 Freeze prevention control (Low temp. release) 1. In all cooling operation, the air conditioner operates as described below based upon temp. detected by TC1, TC2 and TCJ sensors. s When “J” zone is detected for 5 minutes, the thermostat is forcedly off. s In “K” zone, the timer count is interrupted, and held. s When “I” zone is detected, the timer is cleared and the operation returns to the normal operation. s When becoming thermo. OFF continuing J zone, operation of the indoor fan in LOW mode continues until it reaches the “I” zone. It is reset when the following conditions are satisfied. Reset conditions 1) TC1 Ӎ 12°C and TC2 Ӎ 12°C and TCJ Ӎ 12°C 2) 20 minutes passed after stop. (°C) TC1: Temperature of indoor heat exchanger sensor ( ) value: When the power supply is P1 Q1 a K J P1 Q1 TC1 10°C (5°C) 0°C TC2, TCJ –10°C –14°C turned on, the Forced thermo becomes OFF if the temperature is less than this indicated temperature. 2. In all cooling operation, the air conditioner operates as described below based upon temp. detected by TC2 and TCJ sensors. s When “M” zone is detected for 45 minutes, the thermostat is forcedly off. s In “N” zone, the timer count is interrupted and held. s When shifting to “M” zone again, the timer count restarts and continues. s If “L” zone is detected, the timer is cleared and the operation returns to normal operation. Reset conditions 1) TC1 Ӎ 12°C and TC2 Ӎ 12°C and TCJ Ӎ 12°C2) 20 minutes passed after stop. (°C) L P2 Q2 N M P2 Q2 TC2, TCJ 5°C –2°C 9 Recovery control for cooling oil (Refrigerant) The indoor unit which is under STOP/Thermo. OFF status or which operates in [FAN] mode performs the following controls when it received the cooling oil (Refrigerant) recovery signal from the outdoor unit. 1) Opens PMV of the indoor unit with a constant opening degree. 2) Operates the indoor fan and drain pump for approx. 1 minute during recovery control and after finish of control. The direction of the louver becomes horizontal direction. s Recovery operation is usually performed every 2 hours. – 25 – No. 10 11 12 13 14 15 Item Recovery control for heating refrigerant (Oil) Compensation control for short intermittent operation Drain pump control 䈜Option Elimination of retained heat HA control Display of filter sign [ ] (Not provided to the wireless type) Outline of specifications The indoor unit which is under STOP/Thermo. OFF status or which operates in [FAN] mode performs the following controls when it received the heating refrigerant (Oil) recovery signal from the outdoor unit. 1) Opens PMV of the indoor unit with a constant opening degree. 2) Detects temperature of TC2 and then closes PMV. 3) Counts No. of recovery controls and operates the indoor fan and the drain pump for approx. 1 minute after finish of recovery control until the control count reaches the specified count. The direction of the louver becomes horizontal direction. 1) For 5 minutes after start of operation, the opera tion is forcedly continued even if the unit enters in thermo. OFF condition. 2) However the thermostat is OFF giving prior to COOL/HEAT selection, READY for operation and protective control. 1) Drain pump operates while in cooling operation. (including DRY operation) 2) During operation of the drain pump, if the float switch operates, the drain pump continuously operates and a check code is illuminated. 3) During stop status of the drain pump, if the float switch operates, the thermostat is forcedly off and this control operates the drain pump. After continuous operation of the float switch for approx. 5 minutes, this control stops the operation and a check code is issued. 1) When the unit stopped from [HEAT] operation, the indoor fan operates with [L] for approx. 30 seconds. 1) ON/OFF operation is available by input of HA signal from the remote site when connected to remote controller or the remote ON/OFF interface. 2) HA control outputs ON/OFF status to HA terminal. 3) The I/O specifications of HA conform to JEMA standard. 1) The filter sign is displayed with LCD by sending the filter-reset signal to the remote controller when the specified time (2500H) elapsed as a result of integration of the operation time of the indoor fan. 2) The integrated timer is cleared when the filter-reset signal is received from the remote controller. In this time, if the specified time elapsed, the counted time is reset and the LC display is deleted. Filter time 2500H FILE NO. SVM-16042 Remarks s The indoor unit which is under thermo. OFF (COOL) status or which operates in [FAN] mode stops the indoor fan and displays [READY ]. s Recovery operation is usually performed every 1 hour. Attached Drain pumpkit (TCB-DP31CE) Check Code [P10] When using HA terminal (CN61) for the remote ON/ OFF, a connector sold sepa rately is necessary. In case of group operation, use the connector to connect HA terminal to either header or follower indoor unit. [ FILTER] goes on. – 26 – No. 16 Item Display of [READY] [HEAT READY] Outline of specifications < READY> Displayed on the remote controller 1) When the following check codes are indicated s Open phase of power supply wiring [P05] was detected. s There is an indoor unit that detected the indoor overflow [P10]. s There is an indoor unit that detected the interlock alarm [L30]. 2) During forced thermo. OFF s [COOL/DRY] operation is unavailable because the other indoor unit operates with [HEAT] mode. s [HEAT] operation is unavailable because COOL priority (SW11-bit1 of the Outdoor I/F P. C. board is ON) is set and the other indoor unit operates with [COOL/DRY] mode. 3) When the above indoor units that cannot operate stay in thermo. OFF status. 4) When the indoor fan stops because the system performs [Recovery operation for heating refrigerant (Oil)]. <HEAT READY> Displayed on the remote controller When the indoor fan stops in order to prevent discharge of cool air when heating operation started or during heating operation. (including the defrost operation during thermo. OFF) FILE NO. SVM-16042 Remarks s < READY> display No display for wireless type remote controller s <HEAT READY> display 17 Selection of central control mode 1) Selection of the contents that can be operated by the remote controller at the indoor unit side is possible according to setting at the central controller side. 2) Setting contents s In case of TCC-LINK central control Operation from Operation on RBC-AMT32E On TCC-LINK central control Individual [Central 1] [Central 2] [Central 3] [Central 4] ON/OFF Operation Timer Temp. Air speed Air direction setting selection setting setting setting setting 🏵🏵🏵🏵 🏵 🏵 × 🏵 × 🏵🏵 🏵 ×××× 🏵 🏵 🏵 × 🏵 × 🏵 🏵 🏵 × 🏵🏵 🏵 🏵 RBC-AMT32E [Central control] display (🏵: Operation possible ×: Operation impossible) – 27 –

No. 18 Item Louver control: Outline of specifications 1) Louver position setup s When the louver position is changed, the position moves necessarily to downward discharge position once to return to the set position. s The louver position can be set up in the following operation range. In cooling/dry operation In heating/fan operation s In group operation, the louver positions can be set up collectively or individually. In case of refrigerant recovery control, the louver position becomes horizontal. 2) Swing setup s [SWING] is displayed and the following display is repeated. In all operations (Repeats) s In group operation, the louver positions can be set up collectively or individually. 3) When the unit stopped or the warning was output, the louver is automatically set to full closed position. 4) When PRE-HEAT (Heating ready) is displayed (Heating operation started or defrost operation is performed), heating thermo is off, the louver is automatically set to horizontal discharge position. FILE NO. SVM-16042 Remarks

– 28 –

FILE NO. SVM-16042 No. Item Outline of specifications Remarks 19 DC motor 1) DC motor operates according to the command from the indoor controller. (Note) If the fan rotates by entry of outside air, etc while the air conditioner stopped, the indoor unit may operate as the fan motor stops. (Note) If the fan lock was detected, the operation of the indoor unit stops and the error is displayed. 20 Save operation 1) The function [Save operation] is not provided to the Super Modular Multi series models. Check code [P12] s If pushing [SAVE] button “ ” on the remote controller, “No function” is displayed. – 29 – FILE NO. SVM-16042 6. CONFIGURATION OF CONTROL CIRCUIT 6-1. Indoor Unit 6-1-1. Indoor Controoler Block Diagram 1. Connection of wired remote controller Wired (Simple) header remote controller (Up to 2 units) Schedule timer Display LCD Display LED CPU Function setup Key switch CN2 Display LCD CN1 LCD driver Function setup EEPROM DC5V DC5V Power circuit CPU Key switch Indoor unit #1 (Header) Remote controller communication circuit A B *1 Power circuit #2 (Follower) Secondary battery #3 (Follower) Indoor control P.C. board (MCC-1643) A B A B PMV DC20V DC5V DC12V Remote controller communication circuit Driver MCU EEPROM TA sensor TC1 sensor TC2 sensor TCJ sensor Float input Same as left Same as left Louver motor Drain Outside output Start/Alarm/Ready Thermostat ON COOL/HEAT/FAN HA L U1 U2 N L U1 U2 N pump 䈜Option Indoor fan motor DC 280V Fan motor control circuit Power circuit BUS communication circuit L N U1 U2 Power supply Outdoor unit Power supply Outdoor unit Max. 8 units are connectable. *1 The schedule timer cannot be connected to the simple wired remote controller. Power supply 1Ø220-240V, 50Hz 1Ø220V, 60Hz Indoor/Outdoor communication U1 U2 Outdoor unit – 30 –

2. Connection of wired remote controller kit Indoor unit #1 (Header) FILE NO. SVM-16042 A B

Wireless remote controller kit #2 #3 (Follower) (Follower)

Indoor control P.C. board (MCC-1643) DC20V Remote controller Receiving P.C. board A B A B

communication circuitRemote controller communication circuit

PMV DC5V DC12V Driver MCU EEPROM TA sensor TC1 sensor TC2 sensor TCJ sensor Float input Power circuit DC5V CPU Buzzer Receiving circuit Emergent operation SW Function setup SW Display LED Same as left Same as left

Louver motor Drain pump 䈜Option Indoor fan motor Outside output Start/Alarm/Ready Thermostat ON COOL/HEAT/FAN Fan motor control circuit HA BUS communication circuit L U1U2 N L U1U2 N

DC 280V Power circuit L N U1 U2 Power supply Outdoor unit Power supply Outdoor unit

Power supply 1Ø220-240V, 50Hz 1Ø220V, 60Hz Indoor/Outdoor communication

U1 U2 Outdoor unit – 31 –

FILE NO. SVM-16042 3. Connection of both wired remote controller and wireless remote controller kit Wired (Simple) header remote controller Schedule timer Display LCD EEPROM CPU Function setup Key switch Display LCD CN2 LCD driver Function setup Display LED DC5V Power circuit CN1 DC5V CPU Key switch Indoor unit #1 (Header) Remote controller communication circuit A B *1 Power circuit Secondary battery Wireless remote #2 #3 (Follower) (Follower) Indoor control P.C. board (MCC-1643) DC20V Remote controller controller kit Receiving P.C. board Remote controller A B A B communication circuit communication circuit DC5V DC12V EEPROM TA sensor TC1 sensor Power circuit DC5V CPU Emergent operation SW Same Same Driver Buzzer Function as left as left PMV Louver motor Drain pump 䈜Option Indoor fan motor Outside output Start/Alarm/Ready Thermostat ON COOL/HEAT/FAN Fan motor control circuit MCU TC2 sensor TCJ sensor Float input HA BUS communication circuit Receiving circuit setup SW Display LED L U1U2 N L U1U2 N DC 280V Power circuit L N U1 U2 Power supply Outdoor unit Power supply Outdoor unit Power supply 1Ø220-240V, 50Hz 1Ø220V, 60Hz Indoor/Outdoor communication U1 U2 Outdoor unit Max. 8 units are connectable. *1 The schedule timer cannot be connected to the simple wired remote controller. – 32 – 6-2. Indoor P.C. board MCC-1643 y l p , y ) p l V k u p c 0 s , p a ) 4 l r u 2 w e B s - ( o V 0 r l w l 7 e 2 o 0 e 6 2 p 4 w Y l 2 N ( o C - a P C A 9 0 n 0 2 o i 3 2 t p N C O C A r o t o m 0 n 1 a f 2 N C D C t i n u , FILE NO. SVM-16042 ) e t i h W ( e r u s s e r p c it a t s la n r e tx E W S tc e l e s 1 05 WS D E L y l p p u s r e w o P P S I D r e l l o r t n o c e t o m e r fo , ) e t i h W ( 27 N C ) d e R ( 3 0 4 D V 5 C D S F r o f tu pt u O )k c a l B ( 18 NC V 2 1 C D t i k l o r t n o c n o i t t u p t u o V M P , ) d e R ( , )e u l B ( 28 NC V 21 CD ) 01 T( AH r e v u o L , ) w o ll e Y ( 16 NC 015 NC V 21 CD ) e t ih W( K HC , ) e ti h W ( 17 NC V 5 CD a c il pp A 12 5 NC V 21 CD l r e ll o r t n o c e to m e R D E L n o it a c in u m m o c ) n e e r G ( 40 5D r e ll o r t n o c e to m e R , ) e u l B ( 14 NC V 02 CD r o o dt u O/ r o o d n I n o it a c in u m m o c ) e u l B ( 04 NC W S ta o lF , )d e R ( 43 NC V 21 CD r o s n e s 1 CT , )n w o r B ( 0 01 NC V 5 CD r o s n e s J CT , ) de R ( 20 1NC V 5 CD r o s n e s 2 CT 10 1 NC , )k c a l B( V 5 CD p m u p n i a r D , ) e ti h W ( 4 05 NC V 21 CD r o s n e s AT , ) w o ll e Y ( 401 NC V 5 CD f o D E L yl pp u s r e w o P r o s s e c o r p o r c im ) de R ( 105 D a r tn e c r o o dt u O/ r o o d n I l o r tn o c D E L n o it a c in u m m o c ) w o ll e Y ( 305 D – 33 – FILE NO. SVM-16042 6-3. Functions at test run ڦ Cooling/Heating test run check The test run for cooling/heating can be performed from either indoor remote controller or outdoor interface P.C. board. 1. Start/Finish operation of test run ۿ Test run from indoor remote controller Wired remote controller: Refer to the below item of “Test run” of the wired remote controller. Wireless remote controller: Refer to the next page item of “Test run” of the wireless remote controller. ی In case of wired remote controller <RBC-AMT32E> <RBC-AMS41E> TEMP. ON / OFF 2,4 TEMP. ON / OFF 2,4 TIMER SET FAN MODE 3 3 FILTER UP/DN SCHEDULE FAN MODE TIME SAVE VENT PROGRAM DAY TIME SAVE VENT UNIT LOUVER 1,5 FILTER 1,5 FLT.RESET TEST SET CL SWING/FIX UNIT LOUVER RESET CL SWING/FIX TEST Procedure SET Operation contents Push [TEST] button for 4 seconds or more. TEST 1 [TEST] is displayed at the display part and the mode enters in TEST mode. 2 Push [ON/OFF] button. Change the mode from [COOL] to [HEAT] using [MODE] button. s Do not use [MODE] button for other mode except TEST 3 [COOL]/[HEAT] modes. s The temperature cannot be adjusted during test run. s The error detection is performed as usual. 4 After test run, push [ON/OFF] button to stop the operation. (Display on the display part is same to that in Procedure 1 .) Push [TEST] button to clear the TEST mode. 5 ([TEST] display in the display part disappears and status becomes the normal stop status.) Note) The test run returns to the normal operation after 60 minutes. – 34 –

FILE NO. SVM-16042 ⓿ In case of wireless remote controller 1. When TEMPORARY button is pushed for 10 seconds or more, “Pi!” sound is heard and the operation changes to a forced cooling operation. After approx. 3 minutes, a cooling operation starts forcedly. Check cool air starts blowing. If the operation does not start, check wiring again. 2. To stop a test operation, push TEMPORARY button once again (Approx. 1 second). Check wiring / piping of the indoor and outdoor units in forced cooling operation. s TEMPORARY button – 35 –

FILE NO. SVM-16042 ڦ Check function for operation of indoor unit (Functions at indoor unit side) This function is provided to check the operation of the indoor unit singly without communication with the remote controller or the outdoor unit. This function can be used regardless of operation or stop of the system. However, if using this function for a long time, a trouble of the equipment may be caused. Limit using this function within several minutes. [How to operate] 1) Short-circuit CHK pin (CN71 on the indoor P.C. board). The operation mode differs according to the indoor unit status in that time. Normal time: Both float SW and fan motor are normal. Abnormal time: Either one of float SW or fan motor is abnormal. 2) Restricted to the normal time, if short-circuiting DISP pin (CN72 on the indoor P.C. board) in addition to short-circuit of CHK pin (CN71 on the indoor P.C. board), the minimum opening degree (30pls) can be set to the indoor PMV only. When open DISP pin, the maximum opening degree (1500pls) can be obtained again. [How to clear] Open CHK pin. While the system is operating, it stops once but automatically returns to operation after several minutes. Short-circuit of CHK pin Normal time Abnormal time DISP pin open DISP pin short circuit Fan motor Indoor PMV (∗) Louver Drain pump Communication P.C. board LED (H) (H) Stop Max. opening degree (1500pls) Min. opening degree (30pls) Min. opening degree (30pls) Horizontal Horizontal Immediate stop ON ON ON All ignored All ignored All ignored Lights Lights Flashes s To exchange the indoor PMV coil, set the indoor PMV to Max. opening degree. s For the detailed positions of CHK pin (CN71 on indoor P.C. board) and DISP pin (CN72 on indoor P.C. board), refer to the indoor P.C. board MCC-1643. – 36 –

FILE NO. SVM-16042 6-4. Optional Connector Specifications of Indoor P.C. Board l a t n o e z t i r o o m h e r r e ) e v n n h u t o o i o i t t n L c a o , r e ” l e d e H p e “

s kr a m e R s n o o p o t s y b FF O h t i w , n o it a r e p o t in u r o o d n i y b N O f o kc o lr e t n I : t n e m pi h s t a g n it t e S m r o fr e p s i r e ll o r t n o c e t o m e r e ht n o n o t t u b N A F y b g n it t e s n o it a r e p o e lg n i s e h T ∗ ) 1 00 0 → 000 0 = ]1 3[ N D ( r e ll o r t n o c s t u p n i c it a t S/ ) yr o t c a f m o r f t n e m pi h s t A ( e s lu P= O N/ SE Y : 1 0 J ( t u p n i FF O/ N O AH . t u p n i y b de m r o fr e p s i p o t s n o it a r e p o r e ll o r t n o c e t o m e r f o n o i t i bi h o r P/ n o is s i m r e P t u p n i d e t ib ) A H f o kc a b r e w s n A ( N O n o it a r e p O )r o t c e ll o c N O t u pt u o g n i n r a W )r o t c e ll o n a f r o o d n i f o n o it a r e p o s m r o fr e P ( . n o it a r e p o r o o d n i kc e h c o t d e s u s i kc e h c s ih T ) r e ll o r t n o c e t o m e r dn a r o o dt u o h t i w n o it a c in u m m o c t u o h t i w N O p m u p n i a r D dn a . yl n o r e ll o r t n o c e t o m e r dn a t in u r o o d n i y b e lb a li a v a s i n o it a c in u m m o C ) E1 CU C P- B C T ( t i k l o r t n o c n o it a c il pp A d e t c e n n o C

it a c fii c e pS . o N n i P . o N r o t c e n n o C V 21 C D 1 2 3 N C t ) r o t c e ll o c n e p O ( t u pt u O2 t u p n i FF O/ N O 1 V 0 2 i h o r p r e l l o r t n o c e t o m e R 3 1 6 N C n e p O ( t u pt u o n o it a r e p O 4 V 21 C D 5 c n e p O ( t u pt u o g n i n r a W6 1 1 7 NC V 0 2 1 2 7 NC V 0 2 V 2 1 1 V 5 2 n o is s i m s n a r T3 1 25 N C ti e v i e c e R4 V 0 5

n oi tc n u F u pt u o n o it a li t n e V A H K HC k c e h c n o it a r e pO P SI D e do m n o i ti bi hx E k l o r t n o c n o it pO

– 37 – FILE NO. SVM-16042 7. APPLIED CONTROL 7-1. Setup of Selecting Function in Indoor Unit (Be Sure to Execute Setup by a Wired Remote Controller) <Procedure> Execute the setup operation while the unit stops.

TEMP. ON / OFF

3 4

5 TIMER SET TIME FAN SAVE MODE VENT

6 1 FILTER RESET TEST SET CL SWING/FIX UNIT LOUVER 2

1 Push SET , CL , and TEST buttons simultaneously for 4 seconds or more. The firstly displayed unit No. indicates the header indoor unit address in the group control. In this time, the fan of the selected indoor unit is turned on. 2 Every pushing UNIT LOUVER (left side button) button, the indoor unit numbers in the group control are successively displayed. In this time, the fan of the selected indoor unit only is turned on. 3 Specify the CODE No. (DN) using the setup temperature and buttons. 4 Select the setup data using the timer time and buttons. (When selecting the DN code to “33”, change the temperature indication of the unit from “°C” to “°F” on the remote controller.) 5 Push SET button. (OK if display goes on.) s To change the selected indoor unit, return to procedure 2 . s To change the CODE No. to be set up, return to procedure 3 . 6 Pushing TEST button returns the status to normal stop status. – 38 – FILE NO. SVM-16042 Table: Function selecting CODE No. (DN) (Items necessary to perform the applied control at the local site are described.)

DN 01 02 03 04 06 0d 0F 10 11 12 13 14 19 1E 28 2A 2E 31 32 33 Item Filter display delay timer Dirty state of filter Central control address Specific indoor unit priority Heating temp shift Existence of [AUTO] mode Cooling only Type Indoor unit capacity Line address Indoor unit address Group address Louver type (Air direction adjustment) Temp difference of [AUTO] mode selection COOL → HEAT, HEAT → COOL Automatic restart of power failure Selection of option/error input (TCB-PCUC1E: CN3) HA terminal (CN61) select Ventilating fan control TA sensor selection Temperature unit select Description 0000 : None 0001 : 150H 0002 : 2500H 0003 : 5000H 0004 : 10000H 0000 : Standard 0001 : High degree of dirt (Half of standard time) 0001 : No.1 unit to 0064 : No.64 unit 0099 : Unfixed 0000 : No priority 0001 : Priority 0000 : No shift 0001 : +1 °C 0002 : +2°C to 0010 : +10 °C (Up to +6 recommended) 0000 : Provided 0001 : Not provided (Automatic selection from connected outdoor unit) 0000 : Heat pump 0001 : Cooling only (No display of [AUTO] [HEAT]) 0007 : Ceiling 0000 : Unfixed 0001 to 0034 0001 : No.1 unit to 0030 : No.30 unit 0001 : No.1 unit to 0064 : No.64 unit 0000 : Individual 0001 : Header unit of group 0002 : Follower unit of group 0000 : No louver 0001 : Swing only 0002 : (1-way Cassette type, Ceiling type) 0003 : (2-way Cassette type) 0004 : (4-way Cassette type) 0000 : 0 deg to 0010 : 10 deg (For setup temperature, reversal of COOL/HEAT by ± (Data value)/2) 0000 : None 0001 : Restart 0000 : Filter input 0001 : Alarm input (Air washer, etc.) 0002 : None 0000 : Usual 0001 : Leaving-ON prevention control 0002 : Fire alarm input 0000 : Unavailable 0001 : Available 0000 : Body TA sensor 0001 : Remote controller sensor 0000 : °C (at factory shipment) 0001 : °F At shipment 0002 : 2500H 0000 : Standard 0099 : Unfixed 0000 : No priority 0002 : +2°C (Floor type 0000: 0°C) 0001 : Not provided 0000 : Heat pump Depending on model type According to capacity type 0099 : Unfixed 0099 : Unfixed 0099 : Unfixed According to type 0003 : 3 deg (Ts±1.5) 0000 : None 0002 : None 0000 : Usual (HA terminal) 0000 : Unavailable 0000 : Body TA sensor 0000 : °C

– 39 –

FILE NO. SVM-16042 DN Item Description At shipment (Selection of air volume) Model MMC- AP015 to 5d High ceiling selection AP027 Standard AP036 to AP056 SET DATA 0000: Standard 60 Timer setup (Wired remote controller) (Factory default) Up to 3.5 m Up to 3.5 m 0000 High ceiling (1) Up to 4.0 m Up to 4.3 m 0003 0000: Available (Operable) 0001: Unavailable (Operation prohibited) 0000: Available F6 Presence of Application control kit (TCB-PCUC1E) TYPE 0000: None 0001: Exist 0000: None Setup data Type Abbreviated Model name 0007 Ceiling Type MMC-AP XXX HP* Indoor unit capacity CODE No. [11] Setup data Model Setup data Model 0000* Invalid 0016 — 0001 007 Type 0017 048 Type 0002 — 0018 056 Type 0003 009 Type 0019 — 0004 — 0020 — 0005 012 Type 0021 072 Type 0006 — 0022 — 0007 015 Type 0023 096 Type 0008 — 0024 — 0009 018 Type 0025 — 0010 — 0026 — 0011 024 Type 0027 — 0012 027 Type 0028 — 0013 030 Type ~ — 0014 — 0034 — 0015 036 Type – 40 – FILE NO. SVM-16042 7-2. Applied Control in Indoor Unit ڦ Remote location ON/OFF control box (TCB-IFCB-4E2) [Wiring and setup] s Use the exclusive connector for connection with the indoor control P.C. board. s In a group control, the system can operate when connecting with any indoor unit (Control P.C. board) in the group. However when taking out the operation/error signal from the other unit, it is necessary to take out from each unit individually. 1. Control items 1) Start/Stop input signal : Operation start/stop in unit 2) Operation signal : Output during normal operation 3) Error signal : Output during alarm (Serial communication error or indoor/outdoor protective device) operation 2. Wiring diagram using remote control interface (TCB-IFCB-4E2) Input IFCB-4E2 : No voltage ON/OFF serial signal Output No voltage contact for operation, error display Contact capacity: Below Max. AC240V 0.5A Indoor control P.C. board Remote location ON/OFF control box (TCB-IFCB-4E2) 1 1 Start/Stop input ON/OFF serial COM (GND) Remote controller prohibition/clear input Operation signal output COM (+12V) Error signal output 2 3 4 5 6 CN61 T10 (YEL) 2 3 4 CN06 1 2 3 4 5 6 CN13 Power supply 220–240V, ~50Hz signal input COM Operation signal output Error signal output – 41 –

FILE NO. SVM-16042 ڦ Ventilating fan control from remote controller [Function] s The start/stop operation can be operated from the wired remote controller when air to air heat exchanger or ventilating fan is installed in the system. s The fan can be operated even if the indoor unit is not operating. s Use a fan which can receive the no-voltage A contact as an outside input signal. s In a group control, the units are collectively operated and they can not be individually operated. 1. Operation Handle a wired remote controller in the following procedure. ∗ Use the wired remote controller during stop of the system. ∗ Be sure to set up the wired remote controller to the header unit. (Same in group control) ∗ In a group control, if the wired remote controller is set up to the header unit, both header and follower units are simultaneously operable. 1 Push concurrently SET + CL + TEST buttons for 4 seconds or more. The unit No. displayed firstly indicates the header indoor unit address in the group control. In this time, the fan of the selected indoor unit turns on. 2 Every pushing UNIT LOUVER (left side button) button, the indoor unit numbers in group control are displayed successively. In this time, the fan of the selected indoor unit only turns on. 3 Using the setup temp or button, specify the CODE No. 31 . 4 Using the timer time or button, select the setup data. (At shipment: ) The setup data are as follows: Setup data Handling of operation of air to air heat exchanger or ventilating fan Unavailable (At shipment) Available 5 Push SET button. (OK if display goes on.) s To change the selected indoor unit, go to the procedure 2 ). s To change the item to be set up, go to the procedure 3 ). 6 Pushing TEST returns the status to the usual stop status. 2. Wiring

CN32 FAN DRIVE (2P WHI) 1 2 Relay (DC12V, procured locally) Corresponds to the relay up to one that the rated current of the operation coil is approx. 75mA Outside control 1 input of fan 2 To terminal Compact 4-way Cassette type 4-way Cassette type 1-way Cassette type (2 series) Concealed Duct Standard type Slim Duct type Ceiling type High Wall type ⎫⎬⎭model :

Indoor control P.C. board Note) Determine the cable length between the indoor control P.C. board and the relay within 2m. Corresponds up to a relay in which rated current of the operation coil is approx. 75mA Other type models: Correspond up to a relay in which rated current of the operation coil is approx. 16mA (Does not correspond to a terminal block type relay on the market.)

– 42 – FILE NO. SVM-16042 ڦ Leaving-ON prevention control [Function] s This function controls the indoor units individually. It is connected with cable to the control P.C. board of the indoor unit. s In a group control, it is connected with cable to the indoor unit (Control P.C. board), and the CODE No. 2E is set to the connected indoor unit. s It is used when the start operation from outside if unnecessary but the stop operation is necessary. s Using a card switch box, card lock, etc, the forgotten-OFF of the indoor unit can be protected. s When inserting a card, start/stop operation from the remote controller is allowed. s When taking out a card, the system stops if the indoor unit is operating and start/stop operation from the remote controller is forbidden. 1. Control items 1) Outside contact ON : The start/stop operation from the remote controller is allowed. (Status that card is inserted in the card switch box) 2) Outside contact OFF : If the indoor unit is operating, it is stopped forcedly. (Start/Stop prohibited to remote controller) (Status that card is taken out from the card switch box) * When the card switch box does not perform the above contact operation, convert it using a relay with b contact. 2. Operation Handle the wired remote controller switch in the following procedure. * Use the wired remote controller switch during stop of the system. 1 Push concurrently SET + CL + TEST buttons for 4 seconds or more. 2 Using the setup temp or button, specify the CODE No. . 3 Using the timer time or button, set to the setup data. 4 Push SET button. 5 Push TEST button. (The status returns to the usual stop status.)

3. Wiring CN61 1 1 T10 2 2 (YEL) 3 3 4 4 5 5 6 6 Relay (procured locally) * In the figure, the contact indicates a status that the card is taken out. Indoor control P.C. board Power supply Outside contact (Card switch box, etc: Procured locally)

Note) Determine the cable length between the indoor control P.C. board and the relay within 2m. ڦ Power peak-cut from indoor unit When the relay is turned on, a forced thermo. OFF operation starts. Application control kit (TCB-PCUC1E) is necessary. Please refer to the manual of Application control kit for a detailed setting. – 43 –

FILE NO. SVM-16042 Address setup (Manual setting from remote controller) In case that addresses of the indoor units will be determined prior to piping work after cabling work s Set an indoor unit per a remote controller. s Turn on power supply. 1 Push SET + CL + TEST buttons simultaneously for 4 seconds or more. 2 (Line address) Using the temperature setup / (Example of 2-lines cabling) (Real line: Cabling, Broken line: Refrigerant pipe) Outdoor Outdoor Indoor Indoor Indoor Indoor Indoor buttons, set to the CODE No. 3 Using timer time / buttons, set the line address. 4 Push SET button. (OK when display goes on.) 5 (Indoor unit address) Line address 1 1 1 Indoor unit address 1 2 3 Group address 1 2 2 Header unit 2 1 2 Follower unit 2 2 2 Using the temperature setup / buttons, set to the CODE No. 6 Using timer time / buttons, For the above example, perform setting by connecting singly the wired remote controller without remote controller inter-unit cable. Group address Individual : 0000 set 1 to the line address. 7 Push SET button. (OK when display goes on.) 8 (Group address) Using the temperature setup / buttons, set to the CODE No. 9 Using timer time / buttons, set to Individual, to Master unit and to sub unit. TEMP. Header unit : 0001 Follower unit : 0002 ON / OFF In case of group control 10 Push SET button. (OK when display goes on.) 2, 5, 8 END 11 TIMER SET FAN SAVE MODE VENT 3, 6, 9 11 Push TEST button. TEST FILTER SET 4, 7, 10 TIME CL RESET Setup completes. (The status returns to the usual stop status.) 1 SWING/FIX UNIT LOUVER <Operation procedure> 1 2 3 4 5 6 7 8 9 10 11 END Note 1) When setting the line address from the remote controller, do not use Address 29 and 30. As they are addresses which cannot be set to the outdoor unit, if they are set, the check code [E04] (Indoor/Outdoor communication circuit error) is issued. Note 2) When an address was manually set from the remote controller and the central control over the refrigerant lines is carried out, perform the following setting for the Master unit of each line. s Set the line address for every line using SW13 and 14 on the interface P.C. board of the center unit in each line. s Except the least line address No., turn off SW30-2 on the interface P.C. board of the Master units in the lines connected to the identical central control. (Draw the terminal resistances of indoor/outdoor and central control line wirings together.) s For each refrigerant line, connect the relay connector between Master unit [U1U2] and [U3U4] terminals. s After then set the central control address. (For setting of the central control address, refer to the Installation manual for the central control equipment.) – 44 –

FILE NO. SVM-16042 Confirmation of indoor unit No. position 1. To know the indoor unit addresses though position of the indoor unit is recognized s In case of individual operation (Wired remote controller : indoor unit = 1 : 1) (Follow to the procedure during operation) <Procedure> 1 Push ON / OFF button if the unit stops. 2 Push UNIT LOUVER (left side button) button.

Unit No. 1-1 is displayed on LCD. (It disappears after several seconds.) The displayed unit No. indicate line address and indoor unit address. TEMP. TIMER SET TIME FAN SAVE ON / OFF MODE VENT 1 Operation

(When other indoor units are connected to the identical remote controller (Group control unit), other unit numbers are also displayed every pushing UNIT LOUVER (left side button) button. TEST FILTER RESET SET CL SWING/FIX UNIT LOUVER 2

<Operation procedure> 1 2 END 2. To know the position of indoor unit by address s To confirm the unit No. in the group control (Follow to the procedure during operation) (in this procedure, the indoor units in group control stop.) <Procedure> The indoor unit numbers in the group control are successively displayed, and fan, louver, and drain pump of the corresponding indoor unit are turned on. (Follow to the procedure during operation) 1 Push VENT and TEST buttons simultaneously for

4 seconds or more. TEMP. s Unit No. is displayed. s Fans and louvers of all the indoor units in the 1 group control operate. TIMER SET TIME FAN SAVE ON / OFF MODE VENT

2 Every pushing UNIT LOUVER (left side button) button, the unit numbers in the group control are 3 successively displayed. s The unit No. displayed at the first time indicates TEST FILTER RESET SET CL SWING/FIX UNIT LOUVER 2

the header unit address. s Fan and louver of the selected indoor unit only operate. 3 Push TEST button to finish the procedure. All the indoor units in the group control stop. <Operation procedure> 1 2 3 END

– 45 –

FILE NO. SVM-16042 How to check all the unit No. from an arbitrary wired remote controller <Procedure> Carry out this procedure during stop of system. The indoor unit No. and the position in the identical refrigerant piping can be checked. An outdoor unit is selected, the identical refrigerant piping and the indoor unit No. are displayed one after the other, and then its fan and louver are on. 1 Push the timer time button + TEST simultaneously for 4 seconds or more. First line 1 and CODE No. (Address Change) are displayed. (Select outdoor unit.) 2 Select line address using UNIT LOUVER / SWING/FIX button. 3 Determine the selected line address using SET button. s The address of the indoor unit connected to the refrigerant piping of the selected outdoor unit is dis played and the fan and the louver are on. 4 Every pushing UNIT LOUVER (left side button) button, the indoor unit No. in the identical piping is displayed one after the other. s Only fan and louver of the selected indoor unit start operation. [To select the other line address] 5 Push CL button and the operation returns to Procedure 2. * The indoor address of other line can be continuously checked. 6 Push TEST button and then the procedure finishes. 1 TEMP. TIMER SET TIME FAN SAVE ON / OFF MODE VENT TEST FILTER RESET SET CL SWING/FIX UNIT LOUVER 3 5 4 2 6 <Operation procedure> 1 2 3 4 5 6 END – 46 –

FILE NO. SVM-16042 Changing the indoor unit address using a remote controller To change an indoor unit address using a wired remote controller. The method to change the address of an individual indoor unit (the indoor unit is paired with a wired remote controller one-to-one), or an indoor unit in a group. (The method is available when the addresses have already been set automatically.)

3 TEMP. TIMER SET FAN ON / OFF MODE

8 5 4 SETTIME

TEST FILTER RESET CL SAVE SWING/FIX VENT UNIT LOUVER

1 2, 6, 7 (Execute it while the units are stopped.) 1 Push and hold the SET , CL , and buttons at the same time for more than 4 seconds. (If 2 or more indoor units are controlled in a group, the first indicated UNIT No. is that of the head unit.) 2 Push the UNIT LOUVER button (left side of the button) repeatedly to select an indoor unit number to change if 2 or more units are controlled in a group. (The fan and louvers of the selected indoor unit are activated.) (The fan of the selected indoor unit is turned on.) 3 Push the TEMP. / buttons repeatedly to select for CODE No. 4 Push the TIME / buttons repeatedly to change the value indicated in the SET DATA section to that you want. 5 Push the SET button. 6 Push the UNIT LOUVER button (left side of the button) repeatedly to select another indoor UNIT No. to change. Repeat steps 4 to 6 to change the indoor unit addresses so as to make each of them unique. 7 Push the UNIT LOUVER button (left side of the button) to check the changed addresses. 8 If the addresses have been changed correctly, push the button to finish the procedure. – 47 – FILE NO. SVM-16042 How to change all indoor addresses from an arbitrary wired remote controller (It is possible when setting has finished by automatic addresses.) Contents: The indoor unit addresses in each identical refrigerant piping line can be changed from an arbitrary wired remote controller. Enter in address check/change mode and then change the address. <Procedure> Carry out this procedure during stop of system. 1 Push the timer time button + TEST simultaneously for 4 seconds or more. First line 1 and CODE NO. (Address Change) are displayed. 2 Select line address using UNIT LOUVER / SWING/FIX button. 3 Push the SET button.

s The address of the indoor unit connected to the TEMP. refrigerant piping of the selected outdoor unit is displayed and the fan and the louver are on. 1 First the current indoor address is displayed. TIMER SET TIME FAN SAVE ON / OFF MODE VENT

(Line address is not displayed.) 4 TIME button push up/down the indoor TEST FILTER RESET 3 SET CL SWING/FIX UNIT LOUVER 2

address of the SET DATA. The set data is changed to a new address. 5 Push SET button to determine the set data. 6 Every pushing UNIT LOUVER (left side button) button, the indoor unit No. in the identical piping is displayed one after the other. s Only fan and louver of the selected indoor unit Cancel of line selection If the UNIT No. is not call up here, the outdoor unit in that line does not exist. Push CL button to select a line again in the Procedure 2.

start operation. Repeat the Procedures 4 to 6 to change all the indoor addresses so that they are not duplicated. TEMP. 8 TIMER SET TIME FAN SAVE ON / OFF MODE VENT 4

7 Push SET button. Finish TEST FILTER RESET SET CL SWING/FIX UNIT LOUVER 6

(All the indications of LCD go on.) 8 Push TEST button and then the procedure 5 <Operation procedure> When you want to complete the setting 7

finishes. 1 2 3 4 5 6 7 8 END

– 48 – FILE NO. SVM-16042 Function to clear error 1. Clearing method from remote controller How to clear error of outdoor unit In the unit of refrigerant line connected by indoor unit of the remote controller to be operated, the error of the outdoor unit currently detected is cleared. (Error of the indoor unit is not cleared.) The service monitor function of the remote controller is utilized. <Method> 1 Push CL + TEST buttons simultaneously for 4 seconds or more to change the mode to service monitor mode. 2 Push TEMP. button to set the CODE N . to [FF]. o 3 The display of A part in the following figure is counted as “ ” “ ” “ ” “ ” “ ” “ ” with 5-seconds interval. When “ ” appear, the error was cleared. ∗ However counting from “ ” is repeated on the display screen. 4 When pushing TEST button, the status becomes normal. 3

2 TEMP. TIMER SET TIME FAN SAVE ON / OFF MODE VENT

4 TEST FILTER RESET SET CL SWING/FIX UNIT LOUVER 1

<Operation procedure> 1 2 3 4 Returns to normal status How to clear error of indoor unit The error of indoor unit is cleared by ON / OFF button of the remote controller. (Only error of the indoor unit connected with remote controller to be operated is cleared.) – 49 – FILE NO. SVM-16042 Monitoring function of remote controller switch When using the remote controller (Model Name: RBC-AMT32E), the following monitoring function can be utilized. Calling of display <Contents> The temperature of each sensor of the remote controller, indoor unit and outdoor unit and the operating status can be checked by calling the service monitor mode from the remote controller. <Procedure> 1 Push TEST + CL buttons simultaneously for 4 seconds or more to call up the service monitor mode. The service monitor goes on and firstly the temperature of the CODE No. is displayed. 2 Push TEMP. button to change CODE No. to the CODE No. to be monitored. For display code, refer to the following table. TEMP. ON / OFF 2 3 Push UNIT LOUVER (left side button) button to change TIMER SET FAN MODE to item to be monitored. VENT SAVE TIME

The sensor temperature of indoor unit or 4 TEST FILTER RESET SET CL SWING/FIX UNIT LOUVER

outdoor unit in its refrigerant line and the operating status are monitored. 4 Push TEST button to return the status to the normal display. 1 3 Returns to normal display <Operation procedure> 1 2 3 4

– 50 – FILE NO. SVM-16042 Target outdoor unit (SMMS, SHRM, Mini-SMMS – Series 1 – 2) CODE No. Data Format Unit Remote controller display example

Indoor unit data System unit data 00 01 02 03 04 05 08 0A 0B 0C 0D Room temperature (in control) *1 x1 x1 Room temperature (Remote controller) x1 Air Temperature (TA) x1 Coil Temperature (TCJ) Coil Temperature (TC2) x1 x1 Coil Temperature (TC1) PMV x1 Number of connected indoor units x1 x1 Total horse power of connected indoor units Number of connected outdoor units x1 x1 Total horse power of outdoor units
C
C
C
C
C
C pls — HP — HP [0024]=24 ˚C [0050]=500 pls [0048]=48 [0415]=41.5 HP [0004]=4 [0420]=42 HP

CODE No. Data Format Unit Remote controller display example U1 U2 U3 U4

Individual data 1 of outdoor 10 20 30 40 Discharge temperature of compressor 1
C x1 (Td1) Discharge temperature of compressor 2 [0024]=24 ˚C

11 21 31 41 ˚C

unit *3 x1 (Td2) 12 22 32 42 Detection pressure of high-pressure sensor x1 (Pd) Detection pressure of low-pressure sensor x1 MPa [0123]=1.23 MPa

13 23 33 43 MPa (Ps)

14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F Suction Temperature (TS) Coil Temperature 1 (TE) Liquid Temperature (TL) Outdoor Temperature (TO) Low-pressure saturation temperature (TU) Current of compressor 1 (I1) Current of compressor 2 (I2) PMV1 + 2 PMV3 Compressor 1, 2 ON/OFF Outdoor fan mode Horse power of outdoor unit x1 x1 x1 x1 x1 x1 x1 x1 x1 *2 x1 x1
C
C
C
C
C A A pls pls — — HP [0024]=24 ˚C [0135]=13.5 A [0050]=500 pls [0050]=500 pls [0031]=Mode 31 [0016]=16HP

*1 In the case of group connection, only the header indoor unit data can be displayed. *2 01 ... Only compressor 1 is on 10 ... Only compressor 2 is on 11 ... Both compressor 1 and 2 are on *3 The upper digit of CODE No. indicates the outdoor unit No. U1 outdoor unit (Header unit) U2 outdoor unit (follower unit 1) U3 outdoor unit (follower unit 2) U4 outdoor unit (follower unit 3) – 51 –

FILE NO. SVM-16042 Target outdoor unit (SMMS-i – Series 4) CODE No. Data Format Unit Remote controller display example Indoor unit data *2 00 01 02 03 04 05 06 08 Room temperature (in control) Room temperature (Remote controller) Air Temperature (TA) Coil Temperature (TCJ) Coil Temperature (TC2) Coil Temperature (TC1) Discharge temperature (TF) *1 PMV x1 x1 x1 x1 x1 x1 x1 x1/10
C ˚C ˚C ˚C ˚C ˚C ˚C pls [0024]=24 ˚C [0150]=1500 pls 09 Air Suction Temperature of direct expansion coil (TSA) *1 [0024]=24 ˚ C System unit data FA 0A 0B 0C 0D Outdoor Air Temperature (TOA) *1 Number of connected indoor units Total horse power of connected indoor units Number of connected outdoor units Total horse power of outdoor units x1 x1 x1 x10 x1 x10
C
C — HP — HP [0048]=48 [0415]=41.5HP [0004]=4 [0420]=42HP CODE No. Data Format Unit Remote controller display example U1 U2 U3 U4 Individual data 1 of outdoor 10 20 30 40 Detection pressure of high-pressure sensor (Pd) Detection pressure of low-pressure sensor x100 MPa [0123]=1.23 MPa 11 21 31 41 MPa unit *3 (Ps) 12 22 32 42 Discharge temperature of compressor 1 (Td1) x100 x1
C 13 23 33 43 Discharge temperature of compressor 2 x1
C (Td2) 14 24 34 — Discharge temperature of compressor 3 x1
C (Td3) [0024]=24 ˚C 15 16 17 18 19 1A 1B 1C 1D 1E 1F 25 26 27 28 29 2A 2B 2C 2D 2E 2F 35 36 37 38 39 3A 3B 3C 3D 3E 3F 45 46 — 48 49 4A — 4C 4D — 4F Suction Temperature (TS) Coil Temperature 1 (TE1) Coil Temperature 2 (TE2) Liquid Temperature (TL) Outdoor Temperature (TO) PMV1 + 2 PMV4 Current of compressor 1 (I1) Current of compressor 2 (I2) Current of compressor 3 (I3) Outdoor fan current (IFan) x1 x1 x1 x1 x1 x1 x1 x10 x10 x10 x10
C ˚C ˚C ˚C ˚C pls pls A A A A [0050]=500 pls [0135]=13.5 A *1 The TF/TSA/TOA sensors are equipped only with some types of indoor units. The data does not appear for other types. *2 In the case of group connection, only the header indoor unit data can be displayed. *3 The upper digit of CODE No. indicates the outdoor unit No. *4 [(The upper digit of CODE No.) – 4] indicates the outdoor unit No. 1∗, 5∗ ... U1 outdoor unit (Header unit) 2∗, 6∗ ... U2 outdoor unit (follower unit 1) 3∗, 7∗ ... U3 outdoor unit (follower unit 2) 4∗, 8∗ ... U4 outdoor unit (follower unit 3) *5 Only CODE No. 5s of U1 outdoor unit (Header unit) is displayed. – 52 – FILE NO. SVM-16042 CODE No. Data Format Unit Remote controller display example U1 U2 U3 U4 Individual data 2 of outdoor unit *4 50 51 52 53 60 61 62 63 70 71 72 73 80 81 — 83 Rotation of compressor 1 Rotation of compressor 2 Rotation of compressor 3 Outdoor fan mode x10 x10 x10 x1 rps rps rps Mode [0642]=64.2 rps [0058]=Mode 58 54 64 74 84 Heat sink temperature of compressor IPDU1 55 65 75 85 Heat sink temperature of compressor IPDU2 56 66 76 — Heat sink temperature of compressor IPDU3 57 67 77 87 Heat sink temperature of outdoor fan IPDU 58 — — — In heat/cool collecting control *5 x1 x1 x1 x1 0: Normal
C ˚C
C ˚C [0024]=24 ˚C [0010] = In heat collecting control 59 — — — Pressure release *5 5A — — — Discharge temperature release *5 Terminal unit release (U2 / U3 / U4 outdoor unit) *5 5B — — — 1: In collecting control 0: Normal 1: In release control [0001] = In cool collecting control [0010] = In pressure release control [0001] = In discharge temperature release control [0100] = In U2 outdoor unit release control [0010] = In U3 outdoor unit release control [0001] = In U4 outdoor unit release control 5F 6F 7F 8F Horse power of outdoor unit HP x1 [0016]=16HP *1 The TF / TSA / TOA sensors are equipped only with some types of indoor units. The data does not appear for other types. *2 In the case of group connection, only the header indoor unit data can be displayed. *3 The upper digit of CODE No. indicates the outdoor unit No. *4 [(The upper digit of CODE No.) – 4] indicates the outdoor unit No. 1∗, 5∗ ... U1 outdoor unit (Center unit) 2∗, 6∗ ... U2 outdoor unit (terminal unit 1) 3∗, 7∗ ... U3 outdoor unit (terminal unit 2) 4∗, 8∗ ... U4 outdoor unit (terminal unit 3) *5 Only CODE No. 5∗ of U1 outdoor unit (Center unit) is displayed. – 53 – FILE NO. SVM-16042 LED display on P.C. board 1. D501 (Red) s D501 goes on at the same time when the power supply is turned on. (Goes on with operation of the main microprocessor) s D501 flashes with 1-second interval (every 0.5 second) : When there is no EEPROM or write-in error s D501 flashes with 10-seconds interval (every 5 second) : In DISP mode s D501 flashes with 2-seconds interval (every 1 second) : During setting of function exchange (EEPROM) 2. D403 (Red) s D403 goes on when power is supplied to the remote controller. (ON in hardware) 3. D503 (Yellow): Indoor/Outdoor central control s D503 goes on for 5 seconds at the first half during communication with the central controller. s D503 flashes for 5 seconds with 0.2-second interval at the latter half during communication with outdoor unit. (Goes on for 0.1 second, goes off for 0.1 second) 4. D504 (Green): Remote controller communication s D504 goes on for 5 seconds at the first half during communication with remote controller. (Header unit of group) s In the group indoor unit, D504 flashes for 5 seconds with 0.2-second interval at the latter half during communication between header and follower unit. (Goes on for 0.1 second, goes off for 0.1 second) 5. D14 (Orange) s It flashes while receiving the serial signal from the outdoor unit. (Hardware) 6. D15 (Green) s It flashes while sending the serial signal to the outdoor unit. (Hardware) – 54 – FILE NO. SVM-16042 8. TROUBLESHOOTING 8-1. Troubleshooting Summary 1. Before troubleshooting 1) Applied models SMMS (i) Multi type models Indoor unit : MMX-APXXX, Outdoor unit : MMY-MAPXXXXT8X, MMY-MAPXXXHT7X Super Heat Recovery Multi type models Indoor unit : MMX-APXXX, Outdoor unit : MMY-MAPXXXFT8X Mini-SMMS Multi type models Indoor unit : MMX-APXXX, Outdoor unit : MCY-MAPXXXHT, MCY-MAPXXXHT2X 2) Required tools / measuring devices s Screwdrivers (Philips, Minus), spanner, radio pinchers, nipper, push pin for reset switch, etc. s Tester, thermometer, pressure gauge, etc. 3) Confirmation before check (The following items are not troubles.) No. 1 2 3 4 5 6 Operation Compressor does not operate. Indoor fan does not work. Outdoor fan does not rotate, or fan speed changes. Indoor fan does not stop. Start/stop operation on remote controller is unavailable. —— Check items s Is not delayed for 3 minutes? (3 minutes after compressor-OFF) s Is not thermostat OFF? s Is not the fan operating or timer? s Is not the system initially communicating? Heating operation cannot be performed under condition of outside temperature 21°C or higher. Cooling operation cannot be performed under condition of outside temperature –5°C or lower. s Is not the cold draft prevention being controlled in heating operation? s Is not low cooling operation being controlled? s Is not a defrost operation being performed? s Is not after-heat elimination operation being controlled after heating operation? s Is not auxiliary unit or remote control being operated? s Is connecting wire of indoor unit or remote controller correct? 2. Troubleshooting procedure When a trouble occurred, advance the check operation in the following procedure. [E28] error Check the check display on the interface P.C. board Trouble NOTE Check the check display on the interface P.C. board of the header unit. of the corresponding follower unit. Check position or part in which a trouble occurred. Other error While a check operation is performed, a malfunction of the microprocessor may be caused due to condition of the power supply or the external noise. If there is any noise source, change wires of the remote controller and signal wires to shield wires. – 55 –

. D . D . C. t i n . ti FILE NO. SVM-16042 ) n

r o )r e ll o r t n o c e t o m e R ( t r a p y a l p s i d D C L , t in u r o o dt u o e h t f o dr a o b . C. P . s ut . w o le b n w o h s s i n o it c n u f s is o n g a i d - fl e s s ih . d e kc e h c e b o t n o i t is o p o t g n i dr o c c a e lb a t g n i w o ll o f e h t n i s t . e lb a t g n i w o ll o f e h t n i ” r e ll o r t n o c l a r t n e c K NI L- C C T & r e ll o r t n o . e lb f f o s e o G : , s e hs a l F : , n o s e o G : ) E L g n i hs a lf o w t e r a e r e ht n e h w e t a n r e t l a s i n o i t i dn o c g n i hs a l F : ) e t a n r e t l A ( A E L g n i hs a l f o w t e r a e r e h t n e h w yl s u o e n a t lu m i s hs a l f D E L o w T : ) yl s u o e n a t lu m i S ( S n o it pi r c s e D n o i t is o p e v it c r e t pa d a kr o w t e n dn a r e ll o r t n o c e t o m e r m o r f n o it a c in u m m o c o N r o o d n i n e e w t e b r o r r e n ) o s l a n o it a c in u m m o c m e t s y s l o r t n o c l a r t n e c o N( t i n u r o o d t u o m o r f n o i t a c i n u m m o c o N r o o d n i n e e w t e b r o r r e n . d e tc e t e d s a w s s e r dd a fl e s o t e m a s s s e r dd a n A s s e r P t in u r o o d n i d n a t i k l o r t n o c n o it a c il pp A n e e w t e b r o r r e n o it a c in u m m o C n o it a c il pp A n e e w t e d r a o b t i n u r o o d n i n i s t in u r e w o ll o f dn a r e d a e h n e e w t e b n o it a c in u m m o c r a lu ge R r e da e h n e e w t e b r o r r e n . e l bi s s o p m i s a w t i n u . d e t c e t e d s a w )J C T ( r o s n e s . p m e t r e gn a hc x e t a e h f o t r o h s / n e pO r o r r e )J C T ( r o s n e s . p m e t . d e t c e t e d s a w )2 C T ( r o s n e s . p m e t r e gn a hc x e t a e h f o t r o h s / n e pO r o r r e )2 C T ( r o s n e s . p m e t r . d e t c e t e d s a w )1 C T ( r o s n e s . p m e t r e g n a hc x e t a e h f o t r o h s / n e pO r o r r e )1 C T ( r o s n e s . p m e t r . d e t c e t e d s a w ) A T ( r o s n e s . p m e t m o o r f o t r o h s / n e pO r o r r e ) ) . d e t c e t e d e b ya m r o r r e r e ht O ( r o r r e M O RPE E r o o d n I r o r r e dr a . p u o r g a n i s t in u r e da e h e l pi t lu m e r e w e r e hT p u o r g r o o d n i n i r e d a e n u r o o d n i la u di v i d n i n i pu o r g o t d e t c e n n o c t in u r o o d n i n a n e v e s i e r e hT . t in u r o o d n i la u di v id n i ) e di s t in u r o o dt u o t a o s l a d e t c e t e D ( . t e s n u s i s s e r dd a p u o r g r o o d n I . t e s n u s i . t e s n u s i t i n u r o o d n i f o y t ic a pa C . t e . d e t a c il pu d s i s s e r dd a m e t s y s l o r t n o c l a r t n e c f o g n it t e S s s e r dd a m e t s y s l o r t . )0 8N C ( r o r r e la n r e t x e f o t u p n i y b de pp o t s y ll a m r o n b a m e t s yS . ) kc o lr e t n I ( r o o d n i n i t u o it a r e p o y a l e r la m r e h t r o t o m n a F ( . d e t c e t e d s a w n a c C A r o o d n i f o r o r r E . d e t a r e p o h c t i w s t a o lF . d e t c e t e . d e t c e t e d s a w n a f C D r o o d n i f o ). c t e , kc o l , t n e r r u c - r e v O ( r o r r E f o m r a l a ]8 0 L/ 7 0 L/ 3 0 L/ 30 E[ y b d e t a r e p o e b t o n n a c t in u r e w o ll o f p u o r G . ti n u r e d a e h . r o r r e n o it a c in u m m o c s a hc u e c a fr e t n i e ht n o dn a ) a t s n o it a r e p o e ht y a l t y b r e n o i t idn o c r i a e n et n o c kc e h c e h t kc c e t o m e r n o y a l p s iD . e lb a t g n i w o ll o f e ht n i ” y a l ∗ ( ef e d n ia M h s o it a c in u m m o c r a lu ge R r e ll o r tn o c e to m e r dn a o it a c in u m m o c r a lu ge R r o o dt u o dn a dd a r o o d n i d e t a c il pu D b r o r r e n o it a c i n u m m o C u r ood n i dn a ti k l o r tn oc o it a c in u m m o c r a lu ge R r o o d n i n i r e w o ll o f dn a r e gn a h c x e t a e h r o o d n I e gn a hc x e t a e h r o o d n I e gn a hc x e t a e h r o o d n I A T ( r o s n e S . m e t m o o R o b . C. P r e ht o r o r o o d n I h f o g n it t e s d e t a c il pu D n i e lb a c pu o r g s i e r e hT s s e r dd a pu o r g r o o d n I s n u s i y t ic a p a c r o o d n I n o c l a r t n e c d e t a c il pu D p n i s a w r o r r e la n r e t x E r o r r e n a f C A r o o d n I d s a w w o lf r e v o r o o d n I r o r r e n a f C D r o o d n I r o r r e ti n u r o o d n i r e ht O s st n et n o c r orr e e ma re p ht eh “ at p y a al F A AA A S S SS S S S AA AA s kce h c o t w o H . 2- 8 ll o r t n o c e t o m e r l o r t n o c l a r t n e C , r e ll o r t n o c e t o m e r d e r i W ( r e ll o r t n o c e t o m e r e h t n O s i d o t r e dr o n i de di v o r p s i ) dr a o b . C. P e c a fr e t n i r o o dt u o n o ( t r a p y a l p s i d t n e m g e s - 7 f o n o i t is o p e v it c e f e d r o e lb u o r t e h t e g d u j o t do ht e m e h t , d e r r u c c o e lb u o r t a n e hW C . s t c e t e d e c iv e d hc a e t a h t e d o c kc e h c hc a e f o t s il e h t s w o h s e lb a t g n i w o ll o f e hT o t r e fe R : r e ll o r tn o c l a r tn e c K NI L- C C T r o r e ll o r t n o c e to m e r r o o d n i e h t m o r f kc e h Cs g n i w o ll o f e h t n i ” t n e m g e s r o o dt u o f o y a l p s i D “ o t r e fe R : t i n u r o o dt u o m o r f kc e h Cs s i d p m a l r e v i e c e R o t r e fe R : r e ll o r t n o c e t o m e r s s e l e r i w f o t in u r o o d n i m o r f kc e h Cs ) t in u r o o d n I ( t s il y a l p s i d e d o c kc e hC ] . r o r r e s t c e t e d t in u r o o d n I[ l p s i d p m a l r e v i e c e R y a l p s i d e d o c kc e hC ) ∗ ( y a l p s i d k c o l B t n e m g e s - 7 r o o d t u O l a r t n e c K N I L - C C T y d a e R r e m i T n o i t a r e p O e d o c y r a i l i x u A r e l l o r t n o c e t o m e r & — — 3 0 E — — 4 0 E . o N t in u r o o d n i d e t a c il pu D 80 E 8 0 E — — 1 1 E — — 8 1 E — — 1 0 F — — 2 0 F — — 3 0 F — — 0 1 F — — 9 2 F — — 3 0L — — 7 0L — 8 0L 8 0L — — 9 0L — — 0 2L . o N ti n u r o o d n i d e tc e te D 0 3L 0 3L — — 1 0 P . o N ti n u r o o d n i d e tc e te D 01 P 0 1 P — — 2 1 P — — 1 3 P n e v e e c iv e d d e t c e t e d e ht o t g n i dr o c c a t n e r e f fi d e b ya m y a l p s i d e d o c kc e h c e hT ) e t o N – 56 –

f f o s e o G : , s e hs . D E L g n i hs a l f o w t e r a e r e h t n e h w e t a n r e t l a s i n o i t i dn o c g n i hs a l F : . D E L g n i hs a l f o w t e r a e r e h t n e h w yl s u o e n a t lu m i s hs a l f D E L o w T : n o it pi r c s e D e t o m e r f o r e da e h n e h w , t in u r o o d n i m o r f d e v i e c e r e b t o n n a c la n gi s n e hW ) s r e ll o r t n o c e t o m e r 2 g n id u lc n i ( t e s t o n s a w r e ll o r t n o c t i n u r o o d n i o t t n e s e b t o n n a c la n gi s n e hW . r e da e h o t t e s e r e w s r e ll o r t n o c e to m e r ht o b , l o r tn o c r e ll o r tn o c e to m e r - 2 n I ) . n o it a r e p o s e u n it n o c t i n u r e w o ll o f dn a m r a l a h t i w s p o t s r e da e h r o o d n I( n o it pi r c s e D e m a s e r a e r e ht , t n e s e b t o n n a c m e t s y s l o r t n o c l a r t n e c f o la n gi s n e hW ) T E N - I A ( s e c iv e d l a r t n e c e l pi t lu m d e v i e c e r e b t o n n a c m e t s y s l o r t n o c l a r t n e c f o la n gi s n e hW r o r e ll o r t n o c e t o m e r n o )T E N - I A ( s r e t pa d a kr o w t e n e l pi t lu m e r e w e r e hT . e n il n o it a c i n u m m o c l a r e n e g e h t f o e c a fr e t n i l o r t n o c o t d e t c e n n o c t n e m pi u q e f o r o r r E T E N - I A/ K NI L- C C T o t e v is u lc x e t in u e s o pr u p r o r r e t in u r e w o ll o f pu o r G ) . o N t in u h t i w r e ht e g o t d e y a l p s i d s i s li a t e d ]∗ ∗ ∗ [ , r e ll o r t n o c e t o m e r r o F( . r o r r e n o i FILE NO. SVM-16042 a l F : , n o s e o G : ) ∗ ( ) e t a n r e t l A ( A ) yl s u o e n a t lu m i S ( S y a l p s i d p m a l r e v ie c e Ry n o i t is o p e v it c e fe d n ia M ) ∗ ( y a l p s i d kc o lB t n e m ge s - 7 r o o dt u O h s a lF y da e R r e m iT n o it a r e pO e d o c yr a il ix u A r e ll o r tn o c e to m e r , ti n u r e da e h r e ll o r tn o c e to m e r o N r o r r e ) e v i e c e r ( n o it a c in u m m o c — r o r r e ) dn e s ( n o it a c in u m m o c r e ll o r t n o c e t o m e R — r e d a e h r e l l o r t n o c e t o m e r d e t a c i l p u D — y a l p s i d p m a l r e v ie c e Ry n o i t is o p e v it c e fe d n ia M ) ∗ ( y a l p s i d kc o lB t n e m g e s - 7 r o o dt u O h s a lF y da e R r e m iT n o it a r e pO e d o c yr a il ix u A r o r r e ) d n e s ( n o i t a c i n u m m o c m e t s y s l o r t n o c l a r t n e C d e y a l p s i d t o n s I — r r e ) e v i e c e r ( n o i t a c i n u m m o c m e t s y s l o r t n o c l a r t n e C ) r e l l e o s r t u n d o e c r a e t h o s m n I e ( r f o — . s r e t pa d a kr o w t e n e l pi t lu m e r a e r e hT — e s o pr u p - l a r e n e g r o f e c a fr e t n i f o m r a l a de h c t a B l o r t n o c t n e m pi u qe — — r o r r e t i n u r e w o l l o f p u o r G m r a l ) a d h e t i n w o i t t i n n e u m o t e v g o n i b d A r ( o c c A — t a c i n u m m o c s a hc u s s t n e t n o c r o r r e e m a s n e v e e c iv e d d e t c e t e d e h t o t g n i dr o c c a t n e r e f fi d ] . r o r r e s t c e t e d r e ll o r t n o c e t o m e R[ a l p s i d e d o c kc e hC r e ll o r t n o c e to m e R — 1 0 E — 2 0 E — 9 0 E ] . r o r r e s t c e t e d r e ll o r t n o c l a r t n e C[ a l p s i d e d o c kc e hC l a r t n e c K NI L- C CT — 5 0 C — 6 0 C — — — 2 1 C — 0 3 P e b ya m y a l p s i d e d o c kc e h c e hT ) e t o N – 57 –

List of check codes (outdoor unit) (Errors detected by SMMS outdoor interface - typical examples) Check code Display of receiving unit Indicator light block FILE NO. SVM-16042 IPDU: Intelligent Power Drive Unit (Inverter P.C. board) :Lighting, : Flashing, : Goes off ALT.: Flashing is alternately when there are two flashing LED SIM: Simultaneous flashing when there are two flashing LED

Typical fault site Description of error Outdoor 7-segment display TCC-LINK central control

or main remote OperationTimer Ready

Sub-code Flash controller display E06 Number of indoor units from which signal is received normally E06 Dropping out of indoor unit Indoor-outdoor Indoor unit initially communicating normally fails to return signal (reduction in number of indoor units connected). Signal cannot be transmitted to indoor units

E07 – (E04) communication circuit error (→ indoor units left without communication from outdoor unit).

E08 Duplicated indoor address (E08) Duplicated indoor address More than one indoor unit is assigned same address (also detected at indoor unit end). ϖ Indoor automatic address setting is started while

E12 01: Indoor-outdoor communication 02: Outdoor-outdoor communication E12 Automatic address starting error Indoor unit not found automatic address setting for equipment in other refrigerant line is in progress. ϖ Outdoor automatic address setting is started while automatic address setting for indoor units is in progress. Indoor unit fails to communicate while automatic

E15 – E15 E16 00: Overloading during automatic address setting address setting for indoor units is in progress. Combined capacity of indoor units is too large

01: Number of units connected E16 Too many indoor units connected / overloading 02: Two or more header units E19 Error in number of outdoor (more than 135 % of combined capacity of outdoor units).

E19 00: No header unit header units There is no or more than one outdoor header unit in one refrigerant line. Indoor unit from other refrigerant line is detected

E20 01: Connection of outdoor unit from other refrigerant line 02: Connection of indoor unit from other refrigerant line E20 Connection to other refrigerant line found during automatic address setting Outdoor-outdoor while indoor automatic address setting is in progress. Signal cannot be transmitted to other outdoor

E23 – E23 communication transmission error units.

E25 – E25 Duplicated follower outdoor address E26 Address of outdoor unit from which signal is not received normally E26 Dropping out of outdoor unit E28 Detected outdoor unit No. E28 Outdoor follower unit error A3-IPDU Fan There is duplication in outdoor addresses set manually. Follower outdoor unit initially communicating normally fails to do so (reduction in number of follower outdoor units connected). Outdoor header unit detects fault relating to follower outdoor unit (detail displayed on follower outdoor unit).

Fan A3-IPDU

01 1 2 O 3 IPDU 0A 1 2 O 3 IPDU O

02 03 O O O 0B 0C O O O O O

E31 E31 IPDU communication error There is no communication between IPDUs (P.C.

04 05 06 O O O O O 0D 0E 0F O O O O O O O O O O boards) in inverter box.

07 08 09 O O O O O O Circle (O): Faulty IPDU Outdoor discharge Outdoor discharge temperature sensor (TD1) has

F04 – F04 ALT F05 – F05 ALT F06 01: TE1 02: TE2 F06 ALT temperature sensor (TD1) error Outdoor discharge temperature sensor (TD2) error Outdoor heat exchanger temperature sensor (TE1, TE2) error been open / short-circuited. Outdoor discharge temperature sensor (TD2) has been open / short-circuited. Outdoor heat exchanger temperature sensors (TE1, TE2) have been open / short-circuited.

F07 – F07 ALT Outdoor liquid temperature sensor (TL) error Outdoor outside air Outdoor liquid temperature sensor (TL) has been open / short-circuited. Outdoor outside air temperature sensor (TO) has

F08 – F08 ALT F11 – F11 temperature sensor (TO) error been open / short-circuited.

– 58 –

FILE NO. SVM-16042 Check code Display of receiving unit Indicator light block Typical fault site Description of error Outdoor 7-segment display TCC-LINK central control or main remote Sub-code Flash Operation Timer Ready controller display F12 – F12 ALT 01: Compressor 1 Outdoor suction temperature sensor (TS1) error Outdoor IGBT built-in Outdoor suction temperature sensor (TS1) has been open / short-circuited. Open-circuit or short-circuit of the outdoor IGBT F13 02: Compressor 2 03: Compressor 3 F13 ALT temperature sensor (TH) error Outdoor temperature built-in temperature sensor (TH) was detected. Wiring error in outdoor temperature sensors (TE1, F15 – F15 ALT sensor (TE1, TL) wiring error TL) has been detected. F16 – F16 ALT Outdoor pressure sensor (Pd, Ps) wiring error Outdoor discharge Wiring error in outdoor pressure sensors (Pd, Ps) has been detected. Outdoor discharge temperature sensor (TD3) has F22 – F22 ALT temperature sensor (TD3) error been open / short-circuited. F23 – F23 ALT Low pressure sensor (Ps) error Output voltage of low pressure sensor (Ps) is zero. F24 – F24 ALT High pressure sensor (Pd) error F31 – F31 SIM Outdoor EEPROM error 01: Compressor 1 Output voltage of high pressure sensor (Pd) is zero or provides abnormal readings when compressors have been turned off. Outdoor EEPROM is faulty (alarm and shutdown for header unit and continued operation for follower unit) Overcurrent of the inverter current (Idc) detection H01 H02 H03 H04 02: Compressor 2 03: Compressor 3 01: Compressor 1 02: Compressor 2 03: Compressor 3 01: Compressor 1 02: Compressor 2 03: Compressor 3 H01 H02 H03 H05 Compressor breakdown Compressor error (Lock) Current detection circuit error Compressor 1 case thermo activation Outdoor discharge circuit was detected. Compressor lock was detected. Current error was detected while the compressor was stopped. Compressor 1 case thermo was activated for protection. Wiring / installation error or detachment of outdoor H05 – H05 temperature sensor (TD1) wiring error discharge temperature sensor (TD1) has been detected. H06 – H06 Activation of low-pressure protection H07 – H07 Activation of low-pressure protection 01: TK1 sensor error Low pressure (Ps) sensor detects abnormally low operating pressure. Temperature sensor for oil level detection (TK1-5) detects abnormally low oil level. H08 02: TK2 sensor error 03: TK3 sensor error 04: TK4 sensor error 05: TK5 sensor error H08 Error in temperature sensor for oil level detection (TK1-5) Temperature sensor for oil level detection (TK1-5) has been open / short-circuited. H14 – H14 H15 – H15 01: TK1 oil circuit error Compressor 2 case thermo activation Outdoor discharge temperature sensor (TD2) wiring error Compressor 2 case thermo was activated for protection. Wiring / installation error or detachment of outdoor discharge temperature sensor (TD2) has been detected. H16 02: TK2 oil circuit error 03: TK3 oil circuit error 04: TK4 oil circuit error 05: TK5 oil circuit error H16 Oil level detection circuit error Outdoor discharge No temperature change is detected by temperature sensor for oil level detection (TK1-5) despite compressor having been started. Wiring / installation error or detachment of outdoor H25 – H25 temperature sensor (TD3) wiring error discharge temperature sensor (TD3) has been detected. L04 – L04 SIM Duplicated outdoor refrigerant line address Duplicated priority indoor Identical refrigerant line address has been assigned to outdoor units belonging to different refrigerant piping systems. More than one indoor unit has been set up as L06 Number of priority indoor units (check code L05 or L06 depending on individual unit) L05 SIM L06 SIM unit (as displayed on priority indoor unit) Duplicated priority indoor unit (as displayed on indoor unit other than priority indoor unit) priority indoor unit. More than one indoor unit has been set up as priority indoor unit. – 59 –

FILE NO. SVM-16042 Check code Display of receiving unit Typical fault site Description of error Outdoor 7-segment display TCC-LINK Indicator light block central control

Sub-code or main remote controller display Flash Operation Timer Ready

L08 (L08) SIM Indoor group address not Address setting has not been performed for one or

– SIM set more indoor units (also detected at indoor end).

– L10 L10 SIM Outdoor capacity not set Outdoor unit capacity has not been set (after P.C. board replacement). L17 L17 SIM Outdoor model Old model outdoor unit (prior to 3 series) has been

– incompatibility error connected.

L18 L18 SIM FS (Flow Selector) unit Cooling / heating cycle error resulting from piping

– error Too many outdoor units error is detected. More than four outdoor units have been

L28 L28 connected. SIM connected SMMS (Series 1) 01: A3-IPDU1 error 02: A3-IPDU2 error 03: A3-IPDU1/A3-IPDU2 error 04: Fan IPDU error 05: A3-IPDU1 + Fan IPDU error 06: A3-IPDU2 + Fan IPDU error 07: All IPDU error SMMS-i (Series 4)

A3-IPDU Fan A3-IPDU Fan There are insufficient number of IPDUs (P.C. SIM boards) in inverter box. Error in number of IPDUs

L29 L29 3 IPDU

01 1 2 O IPDU 0A 1 2 O 3 O

02 03 04 05 06 O O O O O O O O 0B 0C 0D 0E 0F O O O O O O O O O O O O O O O

07 08 09 O O O O O O Circle (O): Faulty IPDU

L30 Detected indoor unit No. (L30) SIM Indoor external error input (interlock) Indoor unit has been shut down for external error input in one refrigerant line (detected by indoor unit).

P03 – P0301: Compressor 1 ALT Outdoor discharge (TD1) temperature error High-pressure SW Outdoor discharge temperature sensor (TD1) has detected abnormally high temperature.

P04 P04 02: Compressor 2 03: Compressor 3 ALT activation High-pressure SW was activated.

00: Open phase detected Open phase / power failure Open phase is detected when power is turned on.

01: Compressor 1 ALT P05 P05 02: Compressor 2 03: Compressor 3 Inverter DC voltage (Vdc) error MG-CTT error Inverter DC voltage is too high (overvoltage) or too low (undervoltage). 01: Compressor 1 P07 P07 02: Compressor 2 03: Compressor 3 ALT Heat sink overheating error Temperature sensor built into IGBT (TH) detects overheating. Indoor unit has been shutdown in one refrigerant P10 Indoor unit No. detected (P10) ALT Indoor unit overflow line due to detection of overflow (detected by indoor unit). P13 – P13 01: TS condition ALT Outdoor liquid backflow detection error State of refrigerant cycle circuit indicates liquid backflow operation. Outdoor suction temperature sensor (TS1) detects

P15 02: TD condition P15 ALT Gas leak detection sustained and repeated high temperatures that exceed standard value.

P17 – P17 ALT Outdoor discharge (TD2) temperature error Outdoor discharge temperature sensor (TD2) detects abnormally high temperature.

P18 – P18 ALT Outdoor discharge (TD3) temperature error Outdoor discharge temperature sensor (TD3) detects abnormally high temperature.

P19 Outdoor unit No. detected P19 ALT P20 – P20 ALT 4-way valve reversing error Activation of high-pressure protection Abnormality in refrigerating cycle is detected during heating operation. High pressure (Pd) sensor detects high pressure that exceeds standard value. MG-CTT: Magnet contactor

– 60 – FILE NO. SVM-16042 (Errors detected by IPDU featuring in SMMS standard outdoor unit - typical examples) Check code Display of receiving unit Typical fault site Description of error Outdoor 7-segment display TCC-LINK Indicator light block central control

Sub-code 01: Compressor 1 02: Compressor 2 or main remote controller display OperationTimer Ready Flash Error in temperature Temperature sensor built into indoor IGBT (TH)

F13 F13 03: Compressor 3 ALT sensor built into indoor IGBT (TH) has been open / short-circuited.

01: Compressor 1 H01 H01 02: Compressor 2 03: Compressor 3 01: Compressor 1 H02 H02 02: Compressor 2 03: Compressor 3 Compressor breakdown Inverter current (Idc) detection circuit detects overcurrent. Compressor error (lockup) Compressor lockup is detected

01: Compressor 1 H03 H03 02: Compressor 2 03: Compressor 3 01: Compressor 1 Current detection circuit error Activation of high-pressure Abnormal current is detected while inverter compressor is turned off. P04 P04 02: Compressor 2 03: Compressor 3 ALT SW High-pressure SW is activated.

P07 P07 ALT Heat sink overheating error Temperature sensor built into IGBT (TH) detects overheating.

P20 P20 ALT High-pressure protection activation SMMS (Series 1) 04: Rotation difference error 06: Maximum rotation exceeded 08: Out of step 0A: Idc activation 0C: Fan lock 0d: Lock 0E: Sync error 0F: Control error High-pressure (Pd) sensor detected a value over the criteria. P22 P22 ALT SMMS-i (Series 4) 0..: IGBT circuit 1..: Position detection circuit error 3..: Motor lockup error 4..: Motor current detection C..: TH sensor error D..: TH sensor error E..: Inverter DC voltage error (outdoor fan) Note: Although letters 0 to F appear at locations indicated by "∗", please ignore them. Outdoor fan IPDU error Outdoor fan IPDU detects error.

01: Compressor 1 P26 P26 02: Compressor 2 03: Compressor 3 01: Compressor 1 P29 P29 02: Compressor 2 03: Compressor 3 ALT ALT Activation of G-Tr (IGBT) short-circuit protection Compressor position detection circuit error Short-circuit protection for compressor motor driver circuit components is activated (momentary overcurrent). Compressor motor position detection error is detected.

Note: The above check codes are examples only, and different check codes may be displayed depending on the outdoor unit configuration (e.g. a Super heat recovery multi system). For details, see the service manual for the outdoor unit. – 61 –

FILE NO. SVM-16042 8-3. Troubleshooting by check Display on Remote Controller In case of wired remote controller (RBC-AMT32E) 1. Confirmation and check When a trouble occurred on the air conditioner, the check code and the indoor unit No. are displayed on the display section of the remote controller. The check code is displayed while the air conditioner operates. If the display disappeared, operate the air conditioner and check the error based upon the following “Confirmation of error history”. Check code Indoor unit No. in which an error occurred 2. Confirmation of error history When a trouble occurred on the air conditioner, the error history can be confirmed with the following procedure. 2 TEMP. TIMER SET TIME FAN SAVE ON / OFF MODE VENT (Up to 4 error histories are stored in memory.) This history can be confirmed from either operating status or stop status. Procedure TEST FILTER RESET 3 Description SET CL SWING/FIX UNIT LOUVER 1 When pushing SET and TEST buttons simultaneously for 4 seconds or more, the below display appears. If [ Service Check] is displayed, the mode enters in the error history mode. s [01: Error history order] is displayed in CODE No. window. 1 s [Check Code] is displayed in check code window. s [Indoor unit address with error] is displayed in UNIT No. Every pushing temp. set / buttons, the error histories stored in the memory are displayed in order. The numbers in CODE No. indicates CODE No. [01] (Latest) to [04] (Oldest). 2 CAUTION Do not push CL button because all the error histories of the indoor unit will be deleted. 3 After confirmation, push TEST button to return to the usual display. How to read the check monitor display <7-segment display> <How to read> – 62 – FILE NO. SVM-16042 In case of central remote controller (TCB-SC642TLE2) ALL ZONE ZONE GROUP CODE 1234 SET DATA No. UNIT No. TEST SETTING R.C. No. GROUP SELECT ZONE CL SET 1. Confirmation and check When a trouble occurred on the air conditioner, the check code and the indoor unit No. are displayed on the display section of the remote controller. The check code is displayed while the air conditioner operates. If the display disappeared, operate the air conditioner and check the error based upon the following “Confirmation of error history”. Unit No display Alarm display UNIT No. Alternate flashing display R.C No. 2. Confirmation of error history When a trouble occurred on the air conditioner, the error history can be confirmed with the following procedure. (Up to 4 error histories are stored in memory.) This history can be confirmed from either operating or stop. 1) Push and SET buttons in succession for 4 seconds or more. 2) SERVICE CHECK goes on and Item code 01 goes on. 3) When selecting (flash) the group number if there is the alarm history, the UNIT number and the latest alarm history are displayed alternately. * In this time, the temperature cannot be set up. 4) To confirm the alarm history other than the latest one, push temp. set / to select Item code (01 to 04). 5) To confirm the alarm in the other group, push ZONE andGROUP to select the group number Do not push CL button because all the alarm histories of the currently selected group are deleted. 6) To finish the service check, push button. Unit No display Alarm display UNIT No. Alternate flashing display R.C No. – 63 –

FILE NO. SVM-16042 Indoor unit display part (Receiving unit) (Wireless type) When specifying the check code, check 7-segment display on the center unit. For the check code which is not displayed on the outdoor 7-segment, confirm it in Section 8-2 How to Check / Check code display list (Indoor unit) “ ”. : Goes off, : Goes on, : Flash (0.5 second)

Lamp indication Operation Timer Ready No indication at all Operation Timer Ready Check code — E01 Cause of trouble occurrence Power supply OFF or miswiring between receiving unit and indoor unit Receiving error Receiving unit Miswiring or wire connection error Sending error

Flash E02 E03 ⎫⎪⎬⎪⎭ ⎫⎬⎭ Communication interruption between receiving unit and indoor unit

Operation Timer Ready Flash Operation Timer Ready Alternate flash Operation Timer Ready Alternate flash E08 Duplicated indoor unit No. (Address) Setup error Duplicated header units of remote controller ⎫⎬⎭ E09 E11 Communication error between Application control kit and indoor unit P.C. board E12 Automatic address start error E18 Wire connection error between indoor units, indoor power supply OFF Miswiring or wire connection error between indoor unit and outdoor unit E04 (Communication interruption between indoor and outdoor units) Communication (receiving) error between indoor and outdoor units, decrease of E06 No. of connected indoor units E07 Communication (sending) error between indoor and outdoor units E15 No indoor unit during setting of automatic address E16 No. of connected indoor units, capacity over E19 Error of No. of center unit E20 Disagreement of refrigerant pipe communication during setting of automatic address E23 Communication (sending) error between outdoor units E25 Duplicated setting of follower unit address Communication (receiving) error between outdoor units, decrease of No. of E26 connected outdoor units E28 Follower unit error E31 IPDU communication error P10 Indoor overflow error P12 Indoor fan error P13 Outdoor unit liquid back detection error P03 Outdoor unit discharge temp. (TD1) error P04 Outdoor unit high pressure switch operation P05 Outdoor unit open phase error was detected, negative phase error was detected Outdoor unit heat sink overheat error: Heat radiation error of electric part (IGBT) P07 in outdoor unit P15 Gas leak was detected: Short of refrigerant charge amount P17 Outdoor unit discharge temp. (TD2) error P19 Outdoor unit 4-way valve inverse error P20 High pressure protection error P22 Outdoor unit DC fan error P26 Outdoor unit G-Tr short-circuit error P29 Compressor position detection circuit error P31 Other indoor unit stopped due to error in the group.

– 64 –

FILE NO. SVM-16042 Lamp indication Check code Cause of trouble occurrence

Operation Timer Ready F01 ⎫⎪⎪⎬⎪⎪⎭ Heat exchanger sensor (TCJ) error

Alternate flash Heat exchanger sensor (TC2) error Temp. sensor error in indoor unit Heat exchanger sensor (TC1) error F02 F03 Room temp. sensor (TA) error F10

Operation Timer Ready F04 F05 F06 Discharge temp. sensor (TD1) error ⎫⎪⎪⎪⎪⎪⎬⎪⎪⎪⎪⎪⎭ Discharge temp. sensor (TD2) error Heat exchanger sensor (TE1) error

Alternate flash Liquid temp. sensor (TL) error Outdoor unit temp. sensor error F07 Outside temp. sensor (TO) error F08 Suction temp. sensor (TS1) error F12 Heat sink sensor (TH) error F13 Misconnection of heat exchanger sensor (TE) with liquid temp. sensor (TL) F15 → Miswiring of temp. sensor in outdoor unit or miss-mounting Miswiring between high pressure sensor (Pd) and low pressure sensor (Ps) F16 → Misconnection of pressure sensor in outdoor unit ⎫⎬ F23 Low pressure sensor (Ps) error Pressure sensor error in outdoor unit F24

Operation Timer Ready Simultaneous flash Operation Timer Ready F29 H01 High pressure sensor (Pd) error ⎭ Indoor unit EEPROM error Compressor break-down ⎫⎪⎬⎪⎭

Flash Operation Timer Ready Simultaneous flash Operation Timer Ready Simultaneous flash Operation Timer Ready Simultaneous flash H02 Compressor lock Outdoor unit compressor system error Current detection circuit error H03 H04 Compressor 1 case thermo operation H06 Low pressure (Ps) drop error Protections stop of outdoor unit Oil face drop detection error H07 H08 Oil face detection circuit system temp. sensor (TK1, TK2, TK3, TK4) error H14 Compressor 2 chase thermo operation: Protective device of outdoor unit operated. H16 Oil face detection circuit system error: Outdoor unit TK1, TK2, TK3, TK4 circuit system error L03 Duplicated header units in indoor unit L05 Duplicated priority indoor unit (Displayed in the room with priority) L06 Duplicated priority indoor unit (Displayed in a room except one with priority) L07 Group cable was connected to individual indoor unit. L08 Indoor group address was unset. L09 Indoor capacity was unset. L04 Duplicated setting of outdoor line address L10 Outdoor capacity was unset. L17 Disagreement error of outdoor unit type L18 COOL/HEAT select unit system error L20 Duplicated address of central control system L28 No. of connected outdoor units over L29 Defective No. of IPDU L30 Indoor unit outside interlock error F31 Outdoor unit EEPROM error

– 65 –

FILE NO. SVM-16042 Others (Except check code) Lamp indication Operation Timer Ready Simultaneous flash Operation Timer Ready Alternate flash Check code — — Cause of trouble occurrence During test run COOL/HEAT disagreement (Automatic cooling/heating setup to automatic cooling/heating unavailable model, heating setup to cooling only model) – 66 –

FILE NO. SVM-16042 8-4. Check codes displayed on remote controller and SMMS outdoor unit (7-segment display on I/F board) and locations to be checked For other types of outdoor units, refer to their own service manuals. Check code

Location Description System status Error detection

condition(s) Check items (locations) Outdoor 7-segment display Main of remote

controller E01 Check code Sub-code detection Remote controller Indoor-remote controller communication error (detected at remote controller end) Stop of corresponding unit Communication between indoor P.C. board and remote controller is disrupted. Check remote controller inter-unit tie cable (A / B). Check for broken wire or connector bad contact. Check indoor power supply. Check for defect in indoor P.C. board. Check remote controller address settings (when two remote controllers are in use). Check remote controller P.C. board.

Remote Remote Stop of Signal cannot be transmitted Check internal

E02 controller controller transmission error corresponding unit from remote controller to indoor unit. transmission circuit of remote controller. --- Replace remote controller as necessary.

Indoor Indoor-remote Stop of There is no communication Check remote controller

unit E03 controller communication error (detected at indoor end) corresponding unit from remote controller (including wireless) or network adaptor. and network adaptor wiring.

Indoor Indoor-outdoor Stop of Indoor unit is not receiving Check order in which

unit E04 communication circuit error (detected at indoor end) corresponding unit signal from outdoor unit. power was turned on for indoor and outdoor units. Check indoor address setting. Check indoor-outdoor tie cable. Check outdoor termination resistance setting (SW30, Bit 2).

No. of indoor I/F Dropping out of All stop Indoor unit initially Check power supply to

units from which signal is received normally E06 E06 E07 indoor unit I/F Indoor-outdoor communication circuit error (detected at outdoor end) communicating normally fails to return signal for specified length of time. All stop Signal cannot be transmitted from outdoor to indoor units for 30 seconds continuously. indoor unit. (Is power turned on?) Check connection of indoor-outdoor communication cable. Check connection of communication connectors on indoor P.C. board. Check connection of communication connectors on outdoor P.C. board. Check for defect in indoor P.C. board. Check for defect in outdoor P.C. board (I/F). Check outdoor termination resistance setting (SW30, Bit 2). Check connection of indoor-outdoor communication circuit.

– 67 –

Check code Location Description System status Error detection FILE NO. SVM-16042

condition(s) Check items (locations) Outdoor 7-segment display Main of remote

controller Sub-code Check code Duplicated indoor address detection Indoor unit Duplicated indoor address All stop More than one indoor unit is assigned same address. Check indoor addresses. Check for any change E08 E08 E09 I/F Remote controller Duplicated master remote controller Stop of corresponding unit In two remote controller configuration (including wireless), both controllers are set up as master. (Header indoor unit is shut down with alarm, while follower indoor units continue operating.) made to remote controller connection (group / individual) since indoor address setting. Check remote controller settings. Check remote controller P.C. boards.

Communication error between Application control kit and indoor unit E11 Indoor unit Indoor Application control kit communication error Stop Displayed when error is detected 1. Check connector indoor unit (CN521(red)) Application control kit (CN1 (red)) 2. Check connection of indoor-Application control kit communication line. 3. Check indoor P.C. board. 4. Check Application control kit P.C. board. E12 E12 01: Indoor-outdoor communication 02: Outdooroutdoor communication I/F Automatic address starting error All stop Indoor automatic address setting is started while automatic address setting for equipment in other refrigerant line is in progress. Outdoor automatic address setting is started while automatic address setting for indoor units is in progress. Perform automatic address setting again after disconnecting communication cable to that refrigerant line.

All stop Indoor unit cannot be I/F Indoor unit not Check connection of

E15 E16 E15 E16 00: Overloading 01-: No. of units connected found during automatic address setting I/F Too many indoor units connected detected after indoor automatic address setting is started. All stop Combined capacity of indoor units exceeds 135 % of combined capacity of outdoor units. Note: If this code comes up after backup setting for outdoor unit failure is performed, perform "No overloading detected" setting. < "No overloading detected " setting method> Turn on SW09/Bit 2 on I/F P.C. board of outdoor header unit. More than 48 indoor units are connected. indoor-outdoor communication line. Check for error in indoor power supply system. Check for noise from other devices. Check for power failure. Check for defect in indoor P.C. board. Check capacities of indoor units connected. Check combined HP capacities of indoor units. Check HP capacity settings of outdoor units. Check No. of indoor units connected. Check for defect in outdoor P.C. board (I/F).

– 68 –

Check code Location Description System status Error detection FILE NO. SVM-16042 condition(s) Check items (locations) Outdoor 7-segment display Main of remote controllerE18 Sub-code Check code detection Indoor unit Error in communication between indoor header and follower units Stop of corresponding unit Periodic communication between indoor header and follower units cannot be maintained. Check remote controller wiring. Check indoor power supply wiring. Check P.C. boards of indoor units. E19 E19 00: No header unit 02: Two or more header units I/F Error in number of outdoor header units All stop There is more than one outdoor header unit in one line. There is no outdoor header unit in one line. Outdoor header unit is outdoor unit to which indoor outdoortie cable (U1,U2) is connected. Check connection of indoor-outdoor communication line. Check for defect in outdoor P.C. board (I/F). 01: All stop Equipment from other line is I/F Connection to Disconnect inter-line tie cable E20 E23 E25 E20 E23 E25 Connection of outdoor unit from other line 02: Connection of indoor unit from other line other line found during automatic address setting I/F Outdooroutdoor communication transmission error I/F Duplicated follower outdoor address I/F Dropping out of found to have been connected when indoor automatic address setting is in progress. All stop Signal cannot be transmitted to other outdoor units for at least 30 seconds continuously. All stop There is duplication in outdoor addresses set manually. in accordance with automatic address setting method explained in gAddress setting h section. Check power supply to outdoor units. (Is power turned on?) Check connection of tie cables between outdoor units for bad contact or broken wire. Check communication connectors on outdoor P.C. boards. Check for defect in outdoor P.C. board (I/F). Check termination resistance setting for communication between outdoor units. Note: Do not set outdoor addresses manually. Backup setting is being E26 E26 Address of outdoor unit from which signal is not received normally Detected outdoor unit I/F Outdoor All stop Outdoor unit initially communicating normally fails to return signal for specified length of time. used for outdoor units. Check power supply to outdoor unit. (Is power turned on?) Check connection of tie cables between outdoor units for bad contact or broken wire. Check communication connectors on outdoor P.C. boards. Check for defect in outdoor P.C. board (I/F). Check check code All stop Outdoor header unit receives E28 outdoor unit No. E28 follower unit error error code from outdoor follower unit. displayed on outdoor follower unit. <Convenient functions> If SW04 is pressed and held for at least 1 second while [E28] is displayed on the 7- segmentdisplay of outdoor header unit, the fan of the outdoor unit that has been shut down due to an error comes on. If SW04 and SW05 are pressed simultaneously, the fans of normal outdoor units come on. To stop the fan or fans, press SW05 on its own. – 69 –

Check code Location Description System status Error detection FILE NO. SVM-16042

condition(s) Check items (locations) Outdoor 7-segment display Main of remote

controller Sub-code Check code SMMS (Series 1) 01: A3-IPDU1 error 02: A3-IPDU2 error 03: A3-IPDU1/A3- IPDU2 error 04: Fan IPDU error 05: A3-IPDU1 + Fan IPDU error 06: A3-IPDU2 + Fan IPDU error 07: All IPDU error or Communication error between IPDU and I/F circuit board or Outdoor I/F circuit board error SMMS-i (Series 4) A3-IPDU Fan detection I/F IPDU communication error All stop Communication is disrupted between IPDUs (P.C. boards) in inverter box. s Check wiring and connectors involved in communication between IPDU-I/F P.C. board for bad contact or broken wire. s Check for defect in outdoor P.C. board (I/F, A3-IPDU or Fan IPDU). s Check for external noise.

E31 E31 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 1 2 3 IPDU

Symbol O signifies site of IPDU error. F01 F02 F03 Indoor unit Indoor unit Indoor unit Indoor TCJ sensor error Indoor TC2 sensor error Indoor TC1 sensor error Stop of corresponding unit Stop of corresponding unit Stop of corresponding unit Sensor resistance is infinity or zero (open / short circuit). Sensor resistance is infinity or zero (open / short circuit). Sensor resistance is infinity or zero (open / short circuit). Check connection of TCJ sensor connector and wiring. Check resistance characteristics of TCJ sensor. Check for defect in indoor P.C. board. Check connection of TC2 sensor connector and wiring. Check resistance characteristics of TC2 sensor. Check for defect in indoor P.C. board. Check connection of TC1 sensor connector and wiring. Check resistance characteristics of TC1 sensor. Check for defect in indoor P.C. board.

F04 F04 I/F TD1 sensor error I/F TD2 sensor error All stop Sensor resistance is infinity or zero (open / short circuit). All stop Sensor resistance is infinity or zero (open / short circuit). Check connection of TD1 sensor connector. Check resistance characteristics of TD1 sensor. Check for defect in outdoor P.C. board (I/F). Check connection of TD2 sensor connector.

F05 F05 TE1 sensor error I/F TE1/TE2 All stop Sensor resistance is infinity Check resistance characteristics of TD2 sensor. Check for defect in outdoor P.C. board (I/F). Check connection of TE1/TE2

F06 F06 02: TE2 sensor error sensor error or zero (open / short circuit). sensor connectors. Check resistance characteristics of TE1/TE2 sensors. Check for defect in outdoor P.C. board (I/F).

– 70 –

Check code Location Description System status Error detection FILE NO. SVM-16042

condition(s) Check items (locations) Outdoor 7-segment display Main of remote

controller Sub-code Check code detection I/F TL sensor error All stop Sensor resistance is infinity or zero (open / short Check connection of TL sensor connector.

F07 F07 I/F TO sensor error circuit). All stop Sensor resistance is infinity or zero (open / short Check resistance characteristics of TL sensor. Check for defect in outdoor P.C. board (I/F). Check connection of TO sensor connector.

F08 F10 F11 F08 Indoor unit Indoor unit Indoor TA sensor error Indoor TF sensor error Stop of corresponding unit Stop of corresponding unit circuit). Sensor resistance is infinity or zero (open / short circuit). Sensor resistance is infinity or zero (open / short circuit). Check resistance characteristics of TO sensor. Check for defect in outdoor P.C. board (I/F). Check connection of TA sensor connector and wiring. Check resistance characteristics of TA sensor. Check for defect in indoor P.C. board. Check connection of TF sensor connector and wiring. Check resistance characteristics of TF sensor. Check for defect in indoor P.C. board. F12 F13 F15 F16 F22 F23 F12 F15 F16 F22 F23 01: Compressor 1 side 02: Compressor 2 side 03: Compressor 3 side I/F TS1 sensor error IPDU TH sensor error I/F Outdoor temperature sensor wiring error (TE1, TL) I/F Outdoor pressure sensor wiring error (Pd, Ps) I/F TD3 sensor error I/F Ps sensor error All stop Sensor resistance is infinity or zero (open / short circuit). All stop Sensor resistance is infinity or zero (open / short circuit). All stop During compressor operation in HEAT mode, TE1 continuously provides temperature reading higher than indicated by TL by at least specified margin for 3 minutes or more. All stop Readings of high-pressure Pd sensor and lowpressure Ps sensor are switched. Output voltages of both sensors are zero. All stop Sensor resistance is infinity or zero. (open / short circuit) All stop Output voltage of Ps sensor is zero. Check connection of TS1 sensor connector. Check resistance characteristics of TS1 sensor. Check for defect in outdoor P.C. board (I/F). Defect in IGBT built-in temperature sensor → Replace A3-IPDU P.C. board. Check installation of TE1 and TL sensors. Check resistance characteristics of TE1 and TL sensors. Check for outdoor P.C. board (I/F) error. Check connection of high pressure Pd sensor connector. Check connection of lowp ressure Ps sensor connector. Check for defect in pressure sensors Pd and Ps. Check for error in outdoor P.C. board (I/F). Check for deficiency in compressive output of compressor. Check connection of TD3 sensor connector. Check resistance characteristics of TD3 sensor. Check for defect in outdoor P.C. board (I/F). Check for connection error involving Ps sensor and Pd sensor connectors. Check connection of Ps sensor connector. Check for defect in Ps sensor. Check for deficiency in compressive output of compressor. Check for defect in 4-way valve. Check for defect in outdoor P.C. board (I/F). Check for defect in SV4 circuit.

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Check code Location Description System status Error detection FILE NO. SVM-16042 condition(s) Check items (locations) Outdoor 7-segment display Main of remote controller Sub-code Check code detection I/F Pd sensor error All stop Output voltage of Pd sensor is zero (sensor Check connection of Pd sensor connector. F24 F24 F29 Indoor unit Other indoor error Stop of corresponding unit open-circuited). Pd > 4.15 MPa despite compressor having been turned off. Indoor P.C. board does not operate normally. Check for defect in Pd sensor. Check for defect in outdoor P.C. board (I/F). Check for defect in indoor P.C. board (faulty EEPROM) F31 F31 H01 H01 H02 H02 H03 H03 H05 H05 H06 H06 01: Compressor 1 side 02: Compressor 2 side 03: Compressor 3 side 01: Compressor 1 side 02: Compressor 2 side 03: Compressor 3 side 01: Compressor 1 side 02: Compressor 2 side 03: Compressor 3 side I/F Outdoor EEPROM error IPDU Compressor breakdown IPDU Compressor error (lockup) MG-CTT error IPDU Current detection circuit error I/F TD1 sensor miswiring (incomplete insertion) I/F Activation of low-pressure protection All stop *1 Outdoor P.C. board (I/F) does not operate normally. All stop Inverter current detection circuit detects overcurrent and shuts system down. All stop Overcurrent is detected several seconds after startup of inverter compressor. All stop Current flow of at least specified magnitude is detected despite inverter compressor having been shut turned off. All stop Discharge temperature of compressor 1 (TD1) does not increase despite compressor being in operation. All stop Low-pressure Ps sensor detects operating pressure lower than 0.02 MPa. Check power supply voltage. Check power supply noise. Check for defect in outdoor P.C. board (I/F). Check power supply voltage. (380-415V ± 10 %). Check for defect in compressor. Check for possible cause of abnormal overloading. Check for defect in outdoor P.C. board (A3-IPDU). Check for defect in compressor. Check power supply voltage. (380-415V ± 10 %). Check compressor system wiring, particularly for open phase. Check connection of connectors / terminals on A3- IPDU P.C. board. Check conductivity of case heater. (Check for refrigerant entrapment inside compressor.) Check for defect in outdoor P.C. board (A3-IPDU). Check outdoor MG-CTT. Check current detection circuit wiring. Check defect in outdoor P.C. board (A3-IPDU). Check installation of TD1 sensor. Check connection of TD1 sensor connector and wiring. Check resistance characteristics of TD1 sensor. Check for defect in outdoor P.C. board (I/F). Check service valves to confirm full opening (both gas and liquid sides). Check outdoor PMVs for clogging (PMV1, 2). Check for defect in SV2 or SV4 circuits. Check for defect in low pressure Ps sensor. Check indoor filter for clogging. Check valve opening status of indoor PMV. Check refrigerant piping for clogging. Check operation of outdoor fan (during heating). Check for insufficiency in refrigerant quantity. *1 Total shutdown in case of header unit Continued operation in case of follower unit MG-CTT: Magnet contactor – 72 – Check code Location Description System status Error detection FILE NO. SVM-16042 condition(s) Check items (locations) Outdoor 7-segment display Main of remote controller Sub-code Check code detection I/F Low oil level protection All stop Operating compressor detects continuous state of low oil level for about 2 hours. <All outdoor units in corresponding line to be checked> Check balance pipe service valve to confirm full opening. Check connection and installation of TK1, TK2, TK3, TK4, and TK5 sensors. Check resistance characteristics of TK1, H07 H07 H08 H08 01: TK1 sensor error 02: TK2 sensor error 03: TK3 sensor error 04: TK4 sensor error 05: TK5 sensor error I/F Error in temperature sensor for oil level detection All stop Sensor resistance is infinity or zero (open / short circuit). All stop Sensor resistance is infinity or zero (open / short circuit). All stop Sensor resistance is infinity or zero (open / short circuit). All stop Sensor resistance is infinity or zero (open / short circuit). All stop Sensor resistance is infinity or zero (open / short circuit). TK2, TK3, TK4, and TK5 sensors. Check for gas or oil leak in same line. Check for refrigerant entrapment inside compressor casing. Check SV3A, SV3B, SV3C, SV3D, SV3E, and SV3F valves for defect. Check oil return circuit of oil separator for clogging. Check oil equalizing circuit for clogging. Check connection of TK1 sensor connector. Check resistance characteristics of TK1 sensor. Check for defect in outdoor P.C. board (I/F). Check connection of TK2 sensor connector. Check resistance characteristics of TK2 sensor. Check for defect in outdoor P.C. board (I/F). Check connection of TK3 sensor connector. Check resistance characteristics of TK3 sensor. Check for defect in outdoor P.C. board (I/F). Check connection of TK4 sensor connector. Check resistance characteristics of TK4 sensor. Check for defect in outdoor P.C. board (I/F). Check connection of TK5 sensor connector. Check resistance characteristics of TK5 sensor. Check for defect in outdoor P.C. board (I/F). – 73 – Check code Location Description System status Error detection FILE NO. SVM-16042 condition(s) Check items (locations) Outdoor 7-segment display Main of remote controller Sub-code Check code detection I/F Compressor 2 case thermo activation All stop Compressor 2 case thermo was activated. Check Compressor 2 case thermo circuit. (Connector, Wiring, Circuit board) Open and check the service valve. (Gas side, Liquid side) Check the outdoor PMV clogging H14 H14 H15 H15 I/F TD2 sensor miswiring (incomplete insertion) All stop Air discharge temperature of (TD2) does not increase despite compressor 2 being in operation. (PMV1, 2). Check the SV42 circuit. Check the SV4 circuit (SV41 / 42 miswiring). Check the opening status of indoor PMV. Check the four-way valve error. Check the refrigerant shortage. Check installation of TD2 sensor. Check connection of TD2 sensor connector and wiring. Check resistance characteristics of TD2 sensor. Check for defect in outdoor P.C. board (I/F). – 74 –

Check code Location Description Error detection FILE NO. SVM-16042

condition(s) Check items (locations) Outdoor 7-segment display Main

remote controller Sub-code Check code SMMS (1 series) 01: TK1 oil circuit error 02: TK2 oil circuit error 03: TK3 oil circuit error 04: TK4 oil circuit error SMMS (1 series) 01: TK1 oil circuit error 02: TK2 oil circuit error 03: TK3 oil circuit error 04: TK4 oil circuit error of detection I/F Oil detection circuit error I/F Oil detection circuit error System status All stop The temperature change of TK1 cannot be detected even after Compressor 1 starts operating. All stop The temperature change of TK2 cannot be detected even after Compressor 2 starts operating. The temperature change of TK3 cannot be detected even after Compressor 3 starts operating. The temperature change of TK4 cannot be detected even after Compressor 4 starts operating, or the temperature difference from that of the other TK Check the TK1 sensor installation. Check the TK1 sensor resistant characteristics. Check the misconnection of TK1, TK2, TK3, or TK4. Check the SV3E valve error. Check the oil circuit capillary clogging and non-return valve error Check the hibernating refrigerant in compressor. Check the TK2 sensor installation. Check the TK2 sensor resistant characteristics. Check the misconnection of TK1, TK2, TK3, or TK4. Check the SV3E valve error. Check the oil circuit capillary clogging and non-return valve error. Check the hibernating refrigerant in compressor. Check the TK3 sensor installation. Check the TK3 sensor resistant characteristics. Check the misconnection of TK1, TK2, TK3, or TK4. Check the SV3E valve error. Check the oil circuit capillary clogging and non-return valve error. Check the hibernating refrigerant in compressor. Check the TK4 sensor installation. Check the TK4 sensor resistant characteristics. Check the misconnection of TK1, TK2, TK3, or TK4. Check the SV3E valve error. Check the oil circuit capillary clogging and non-return valve error. Check the hibernating refrigerant in

H16 H16 SMMS-i (4 series) 01: TK1 oil circuit error 02: TK2 oil circuit error 03: TK3 oil circuit error 04: TK4 oil circuit error 05: TK5 oil circuit error I/F Oil level detection circuit error sensor changes only in the specified range for a given time or longer. All stop No temperature change is detected by TK1 despite compressor 1 having been started. No temperature change is detected by TK2 despite compressor 2 having been started. No temperature change is detected by TK3 despite compressor 3 having been started. compressor. Check for disconnection of TK1 sensor. Check resistance characteristics of TK1 sensor. Check for connection error involving TK1, TK2, TK3, TK4, and TK5 sensors Check for faulty operation in SV3E or SV3F valve. Check for clogging in oil equalizing circuit capillary and faulty operation in check valve. Check for refrigerant entrapment inside compressor. Check for disconnection of TK2 sensor. Check resistance characteristics of TK2 sensor. Check for connection error involving TK1, TK2, TK3, TK4, and TK5 sensors Check for faulty operation in SV3E or SV3F valve. Check for clogging in oil equalizing circuit capillary and faulty operation in check valve. Check for refrigerant entrapment inside compressor. Check for disconnection of TK3 sensor. Check resistance characteristics of TK3 sensor. Check for connection error involving TK1, TK2, TK3, TK4, and TK5 sensors Check for faulty operation in SV3E or SV3F valve. Check for clogging in oil equalizing circuit capillary and faulty operation in check valve. Check for refrigerant entrapment inside compressor.

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Check code Location Description Error detection FILE NO. SVM-16042

condition(s) Check items (locations) Outdoor 7-segment display Main

remote controller Sub-code Check code SMMS-i (4 series) 01: TK1 oil circuit error 02: TK2 oil circuit error 03: TK3 oil circuit error 04: TK4 oil circuit error 05: TK5 oil circuit error of detection I/F Oil level detection circuit error System status All stop No temperature change is detected by TK4 despite compressor having been started. Check for disconnection of TK4 sensor. Check resistance characteristics of TK4 sensor. Check for connection error involving TK1, TK2, TK3, TK4, and TK5 sensors Check for faulty operation in SV3E or SV3F valve. Check for clogging in oil equalizing circuit capillary and faulty operation in check valve. Check for refrigerant entrapment inside compressor.

H16 H16 H25 H25 I/F TD3 sensor miswiring (incomplete insertion) No temperature change is detected by TK5 despite compressor having been started. All stop Air discharge temperature (TD3) does not increase despite compressor 3 being in operation. Only the target Check for disconnection of TK5 sensor. Check resistance characteristics of TK5 sensor. Check for connection error involving TK1, TK2, TK3, TK4, and TK5 sensors Check for faulty operation in SV3E valve. Check for clogging in oil equalizing circuit capillary and faulty operation in check valve. Check for refrigerant entrapment inside compressor. Check installation of TD3 sensor. Check connection of TD3 sensor connector and wiring. Check resistance characteristics of TD3 sensor. Check for defect in outdoor P.C. board (I/F).

L02 L02 Indoor unit Indoor Outdoor unit model mismatch error Duplicated unit stopped Stop of An error was found on the outdoor unit model. There is more than Check the model name of the outdoor unit. Check the miswiring of the communication line between indoor and outdoor. Check indoor addresses.

unit L03 indoor header unit corresponding unit one header unit in group.Check for any change made to remote controller connection (group / individual) since indoor address setting.

L04 L04 L05 L06 L06 No. of priority indoor units I/F Duplicated outdoor line address I/F Duplicated priority indoor unit (as displayed on priority indoor unit) I/F Duplicated priority indoor unit (as displayed on indoor unit other than priority indoor unit) All stop There is duplication in line address setting for outdoor units belonging to different refrigerant piping systems. All stop More than one indoor unit has been set up as priority indoor unit. All stop More than one indoor unit have been set up as priority indoor unit. Check line addresses. Check display on priority indoor unit. Check displays on priority indoor unit and outdoor unit.

L07 L08 L08 L09 Indoor unit Indoor unit Indoor unit Connection of group control cable to stand alone indoor unit Indoor group / addresses not set Indoor capacity not set Stop of corresponding unit Stop of corresponding unit Stop of corresponding unit There is at least one stand-alone indoor unit to which group control cable is connected. Address setting has not been performed for indoor units. Capacity setting has not been performed for indoor unit. Check indoor addresses. Check indoor addresses. Note: This code is displayed when power is turned on for the first time after installation. Set indoor capacity. (DN = 11)

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Check code Location Description System status Error detection FILE NO. SVM-16042 condition(s) Check items (locations) Outdoor 7-segment display Main of remote controller Sub-code Check code detection I/F Outdoor All stop Jumper wire provided on P.C. Check model setting of P.C. L10 L10 L17 L17 Target indoor address capacity not set I/F Outdoor unit model mismatch error I/F Cool / heat Only the target board for servicing I/F P.C. board has not been removed as required for given model. The outdoor unit model is duplicate. The Cool/Heat Flex series 1/2 are duplicate. board for servicing outdoor I/F P.C. board. Check the outdoor unit model. L18 L18 switch unit error unit stopped The heating operation was performed without the cool only setting configured in a cool-only room where a cool/ heat switch unit is not connected. Check the remote controller setting. (DN="0F") Check the cool / heat switching unit. Check the piping connection of the switching unit. (Miswiring of discharge gas / suction gas) Check the SVS / SVD valve miswiring / misinstallation. L20 AI-NET Indoor unit Duplicated central control address All stop There is duplication in central control address setting. Check central control addresses. Check network adaptor P.C. board (applicable to AI-NET). L28 L28 L29 L29 SMMS (Series 1) 01: A3-IPDU1 error 02: A3-IPDU2 error 03: A3-IPDU1/A3- IPDU2 error 04: Fan IPDU error 05: A3-IPDU1 + Fan IPDU error 06: A3-IPDU2 + Fan IPDU error 07: All IPDU error or Communication error between IPDU and I/F circuit board or Outdoor I/F circuit board error SM (Series 4) MS-i A3-IPDU Fan I/F Too many outdoor units connected I/F Error in No. of IPDUs All stop There are more than four outdoor units. All stop Insufficient number of IPDUs are detected when power is turned on. Check No. of outdoor units connected (Only up to 4 units per system allowed). Check communication lines between outdoor units. Check for defect in outdoor P.C. board (I/F). Check model setting of P.C. board for servicing outdoor I/F P.C. board. Check connection of UART communication connector. Check A3-IPDU, fan IPDU, and I/F P.C. board for defect. 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 1 2 3 IPDU Symbol O signifies site of IPDU error. – 77 – Check code Location Description System status Error detection FILE NO. SVM-16042 condition(s) Check items (locations) Outdoor 7-segment display Main of remote controller Sub-code Check code Detected indoor detection Indoor External Stop of Signal is present at When external device is L30 L30 address unit interlock of indoor unit corresponding unit external error input terminal (CN80) for 1 minute. connected to CN80, (CN4) connector: 1) Check for defect in external device. 2) Check for defect in indoor P.C. board. When external device is not connected to CN80, (CN4) connector: 3) When input the signal to Application control kit (TCB-PCUC1E (CN4)) for 1 minute. 1) Check for defect in indoor P.C. board. L31 I/F Extended IC error Continued operation There is part failure in P.C. board (I/F). Check outdoor P.C. board (I/F). P03 P03 P04 P04 01: Compressor 1 side 02: Compressor 2 side 03: Compressor 3 side I/F Discharge temperature TD1 error IPDU Activation of high-pressure SW All stop Discharge temperature (TD1) exceeds 115 ”C. All stop High-pressure SW is activated. Check outdoor service valves (gas side, liquid side) to confirm full opening. Check outdoor PMVs (PMV1, 2, 4) for clogging. Check resistance characteristics of TD1 sensor. Check for insufficiency in refrigerant quantity. Check for defect in 4-way valve. Check for leakage of SV4 circuit. Check SV4 circuit (wiring or installation error in SV41, SV42 or SV43). Check connection of high pressure SW connector. Check for defect in Pd pressure sensor. Check outdoor service valves (gas side, liquid side) to confirm full opening. Check for defect in outdoor fan. Check for defect in outdoor fan motor. Check outdoor PMVs (PMV1, 2) for clogging. Check indoor / outdoor heat exchangers for clogging. Check for short-circuiting of outdoor suction / discharge air flows. Check SV2 circuit for clogging. Check for defect in outdoor P.C. board (I/F). Check for error in indoor fan system (possible cause of air flow reduction). Check opening status of indoor PMV. Check indoor-outdoor communication line for wiring error. Check for faulty operation of check valve in discharge pipe convergent section. Check gas balancing SV4 valve circuit. Check SV5 valve circuit. Check for refrigerant overcharging. – 78 – Check code Location Description Error detection FILE NO. SVM-16042 condition(s) Check items (locations) Outdoor 7-segment display Main remote controller Sub-code Check code of detection I/F Open phase detected, System status All stop Phase sequence Check the phase sequence of P05 P05 SMMS (Series 1) 01: Open phase detected 02: Phase sequence error SMMS-i (Series 4) 00: 01: Compressor 1 side 02: Compressor 2 side 03: Compressor 3 side Phase sequence error I/F Detection of open phase / phase sequence Inverter DC voltage (Vdc) error (compressor) MG-CTT error error was detected when the power is turned on. Open phase error was detected when the power is turned on. All stop Open phase is detected when power is turned on. Inverter DC voltage is too high (overvoltage) or too low (undervoltage). outdoor power wiring. Check the outdoor PC board (I/F) error. Check for defect in outdoor P.C. board (I/F). P07 01: Compressor 1 side 02: Compressor 2 side 03: Compressor 3 side P07 IPDU I/F Heat sink overheating error All stop Temperature sensor built into IGBT (TH) is overheated. Check power supply voltage. Check outdoor fan system error. Check heat sink cooling duct for clogging. Check IGBT and heat sink for thermal performance for faulty installation. (e.g. mounting screws and thermal conductivity) Check for defect in A3-IPDU. (faulty IGBT built-in temperature sensor (TH)) Detected indoor address P10 P10 Indoor unit Indoor overflow error All stop Float switch operates. Float switch circuit is open-circuited or disconnected at connector. Check float switch connector. Check operation of drain pump. Check drain pump circuit. Check drain pipe for clogging. Check for defect in indoor P.C. board. Indoor unit P12 Indoor fan motor error Stop of corresponding unit Motor speed measurements continuously deviate from target value. Overcurrent protection is activated. Check connection of fan connector and wiring. Check for defect in fan motor. Check for defect in indoor P.C. board. Check impact of outside air treatment (OA). Check static pressure setting. MG-CTT: Magnet contactor – 79 – Check code Location Description System status Error detection FILE NO. SVM-16042 condition(s) Check items (locations) Outdoor 7-segment display Main of remote controller Sub-code Check code detection I/F Outdoor liquid backflow detection error All stop <During cooling operation> When system is in cooling operation, high pressure is detected in follower unit that has been turned off. <During heating operation> When system is in heating operation, outdoor PMV 1 or Check full-close operation of outdoor PMV (1, 2, 4). Check for defect in Pd or Ps sensor. Check gas balancing circuit (SV2) for clogging. Check balance pipe. Check SV3B circuit for P13 P13 P15 P15 P17 P17 P18 P18 01: TS condition 02: TD condition I/F Gas leakdetection (TS1 condition) I/F Gas leak detection (TD condition) I/F Discharge temperature TD2 error I/F Discharge temperature TD3 error 2 continuously registers opening of 100p or less while under SH control. All stop Protective shutdown due to sustained suction temperature at or above judgment criterion for at least 10 minutes is repeated four times or more. <TS error judgment criterion> In cooling operation: 60 ”C In heating operation: 40 ”C All stop Protective shutdown due to sustained discharge temperature (TD1, TD2 or TD3) at or above 108 ”C for at least 10 minutes is repeated four times or more. All stop Discharge temperature (TD2) exceeds 115 ”C. All stop Discharge temperature (TD3) exceeds 115 ”C. clogging. Check defect in outdoor P.C. board (I/F). Check capillary of oil separator oil return circuit for clogging. Check for leakage of check valve in discharge pipe convergent section. Check for insufficiency in refrigerant quantity. Check outdoor service valves (gas side, liquid side) to confirm full opening. Check PMVs (PMV1, 2) for clogging. Check resistance characteristics of TS1 sensor. Check for defect in 4-way valve. Check SV4 circuit for leakage Check for insufficiency in refrigerant quantity. Check PMVs (PMV 1, 2) for clogging. Check resistance characteristics of TD1, TD2 and TD3 sensors. Check indoor filter for clogging. Check piping for clogging. Check SV4 circuit (for leakage or coil installation error). Check outdoor service valves (gas side, liquid side) to confirm full opening. Check outdoor PMVs (PMV1, 2, 4) for clogging. Check resistance characteristics of TD2 sensor. Check for defect in 4-way valve. Check SV4 circuit for leakage. Check SV4 circuit (for wiring or installation error involving SV41, SV42 and SV43). Check outdoor service valves (gas side, liquid side) to confirm full opening. Check outdoor PMVs (PMV1, 2, 4) for clogging. Check resistance characteristics of TD3 sensor. Check for defect in 4-way valve. Check SV43 circuit for leakage. Check SV4 circuit (for wiring or installation error involving SV41, SV42 and SV43). – 80 –


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