DAIKIN CTXF35F5V1B (01) PDF Document

The complete documentation set for the DAIKIN CTXF35F5V1B consists of:

General safety precautions:

• Safety instructions that you MUST read before installing.

• Format: Paper (in the box of the indoor unit).

Indoor unit installation manual:

• Installation instructions.

• Format: Paper (in the box of the indoor unit).

Installer reference guide:

• Preparation of the installation, good practices, reference data, etc.

• Format: Digital files.

Always observe the following safety instructions for the installation site:

• Check if the installation location can support the unit’s weight. Poor installation is hazardous and can cause vibrations or unusual operating noise.

• Provide sufficient service space.

• Do NOT install the unit so that it is in contact with a ceiling or a wall, as this may cause vibrations.

• The appliance shall be stored in a room without continuously operating ignition sources (example: open flames, an operating gas appliance or an operating electric heater).

• The appliance using R32 refrigerant shall be stored so as to prevent mechanical damage and in a well-ventilated room without continuously operating ignition sources. The room size shall be as specified in the General safety precaution.

• No brazing or welding on site for units with R32 refrigerant charge during shipment.

• Inside occupied spaces, non-permanent joints are NOT allowed for R32 refrigerant except for site-made joints directly connecting the indoor unit to piping.

• Use the flare nut fixed to the unit.

• To prevent gas leakage, apply refrigeration oil ONLY to the inside of the flare. Use refrigeration oil for R32 (FW68DA).

• Do NOT reuse joints.

• Do NOT use mineral oil on flared part.

• Do NOT reuse piping from previous installations.

• NEVER install a drier to this R32 unit to guarantee its lifetime. The drying material may dissolve and damage the system.

• Connect the refrigerant piping securely before running the compressor. If the refrigerant piping is NOT connected and the stop valve is open when the compressor is run, air will be sucked in. This will cause abnormal pressure in the refrigeration cycle, which may result in equipment damage and even injury.

• Incomplete flaring may cause refrigerant gas leakage.

• Do NOT re-use flares. Use new flares to prevent refrigerant gas leakage.

• Use flare nuts that are included with the unit. Using different flare nuts may cause refrigerant gas leakage.

• Do NOT open the valves before flaring is complete. This would cause refrigerant gas leakage.

• DANGER: RISK OF EXPLOSION. Do NOT open the stop valves before the vacuum drying is finished.

• The refrigerant inside the unit is mildly flammable, but normally does NOT leak. If the refrigerant leaks in the room and comes in contact with fire from a burner, a heater, or a cooker, this may result in fire, or the formation of a harmful gas.

• Turn OFF any combustible heating devices, ventilate the room, and contact the dealer where you purchased the unit.

• Do NOT use the unit until a service person confirms that the part from which the refrigerant leaked has been repaired.

• Only use R32 as refrigerant. Other substances may cause explosions and accidents.

• R32 contains fluorinated greenhouse gases. Its global warming potential (GWP) value is 675. Do NOT vent these gases into the atmosphere.

• When charging refrigerant, ALWAYS use protective gloves and safety glasses.

• To avoid compressor breakdown, do NOT charge more than the specified amount of refrigerant.

• NEVER directly touch any accidental leaking refrigerant. This could result in severe wounds caused by frostbite.

• The appliance MUST be installed in accordance with national wiring regulations.

• All wiring MUST be performed by an authorised electrician and MUST comply with the national wiring regulation.

• Make electrical connections to the fixed wiring.

• All components procured on-site and all electrical construction MUST comply with the applicable legislation.

• If the power supply has a missing or wrong N-phase, equipment might break down.

• Establish proper earthing. Do NOT earth the unit to a utility pipe, surge absorber, or telephone earth. Incomplete earthing may cause electrical shocks.

• Install the required fuses or circuit breakers.

• Secure the electrical wiring with cable ties so that the cables do NOT come in contact with sharp edges or piping, particularly on the high-pressure side.

• Do NOT use taped wires, extension cords, or connections from a star system. They can cause overheating, electrical shocks or fire.

• Do NOT install a phase advancing capacitor, because this unit is equipped with an inverter. A phase advancing capacitor will reduce performance and may cause accidents.

• ALWAYS use multicore cable for power supply cables.

• Use an all-pole disconnection type breaker with at least 3 mm between the contact point gaps that provides full disconnection under overvoltage category III.

• If the supply cord is damaged, it MUST be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.

• Do NOT connect the power supply to the indoor unit. This could result in electrical shock or fire.

1. Remove:

• the accessory bag located at the bottom of the package,

• the mounting plate attached to the back of the indoor unit.

• the spare SSID sticker located on the front grille.

The accessories include:

a. Installation manual

b. Operation manual

c. General safety precautions

d. Spare SSID sticker

e. Indoor unit fixing screw (M4×12L) (2x)

f. Dry battery AAA.LR03 (alkaline) for user interface (2x)

g. Holder for wireless remote control (user interface)

h. Wireless remote control (user interface)

i. Mounting plate

2. Spare SSID sticker. Do NOT throw away the spare sticker. Keep it in a safe place in case it is needed in future (e.g. in case the front grille was replaced attach it to the new front grille).

The main components are:

a. Indoor unit

b. Service lid

c. Air filter

d. Titanium apatite deodorizing and silver particle filter

e. Refrigerant piping, drain hose and interconnection cable

f. Insulation tape

Use the DAIKIN CTXF35F5V1B in the following temperature and humidity ranges for safe and effective operation.

A safety device might stop the operation of the system if the unit runs outside its operation range.

Condensation and water dripping might occur if the unit runs outside its operation range.

Do NOT use the wireless LAN feature near:

• Medical equipment. E.g. persons using cardiac pacemakers or defibrillators. This product may cause electromagnetic interference.

• Auto-control equipment. E.g. automatic doors or fire alarm equipment. This product may cause faulty behaviour of the equipment.

• Microwave oven. It may affect wireless LAN communications.

• Air flow. Make sure nothing blocks the air flow.

• Drainage. Make sure condensation water can be evacuated properly.

• Wall insulation. When conditions in the wall exceed 30°C and a relative humidity of 80%, or when fresh air is inducted into the wall, then additional insulation is required (minimum 10 mm thickness, polyethylene foam).

• Wall strength. Check whether the wall or the floor is strong enough to support the weight of the unit. If there is a risk, reinforce the wall or the floor before installing the unit.

• Spacing. Install the unit at least 1.8 m from the floor and keep the following minimum distances from walls and the ceiling: ≥50 mm from the sides and ≥30 mm from the ceiling.

1. Hold the front panel by the panel tabs on both sides and open it.

2. Remove the front panel by sliding it to the left or the right and pulling it toward you. The front panel shaft on 1 side will be disconnected.

3. Disconnect the front panel shaft on the other side in the same manner.

1. Attach the front panel. Align the shafts with the slots and push them all the way in.

2. Close the front panel slowly; press at both sides and at the centre.

1. Remove the front panel to remove the air filter.

2. Remove 2 screws from the front grille.

3. Push down the 3 upper hooks marked with a symbol with 3 circles.

4. We recommend opening the flap before removing the front grille.

5. Place both hands under the centre of the front grille, push it up and then toward you.

1. Install the front grille and firmly engage the 3 upper hooks.

2. Install 2 screws back on the front grille.

3. Install the air filter and then mount the front panel.

Prerequisite: Remove the front grille.

1. Remove 1 screw from the electrical wiring box.

2. Open the electrical wiring box cover by pulling the protruding part on the top of the cover.

3. Unhook the tab on the bottom and remove the electrical wiring box cover.

1. Remove 1 screw from the service cover.

2. Pull out the service cover horizontally away from the unit.

1. Install the mounting plate temporarily.

2. Level the mounting plate.

3. Mark the centres of the drilling points on the wall using a tape measure. Position the end of tape measure at symbol “>”.

4. Finish the installation by securing the mounting plate on the wall using M4×25L screws (field supply).

1. Bore a 65 mm large feed-through hole in the wall with a downward slope towards the outside.

2. Insert a wall embedded pipe into the hole.

3. Insert a wall cover into the wall pipe.

4. After completing wiring, refrigerant piping and drain piping, do NOT forget to seal the gap with putty.

NOTICE: Be sure to seal the gaps around the pipes with sealing material (field supply), in order to prevent water leakage.

To connect the piping on the right-side, right-bottom, left-side or left-bottom, the pipe port cover MUST be removed.

1. Cut off the pipe port cover from inside the front grille using a coping saw.

2. Remove any burrs along the cut section using a half round needle file.

NOTICE: Do NOT use nippers to remove the pipe port cover, as this would damage the front grille.

Make sure condensation water can be evacuated properly. This involves:

• Pipe length. Keep drain piping as short as possible.

• Pipe size. If drain hose extension or embedded drain piping is required, use appropriate parts that match the hose front end (inner Ø16 mm, outer Ø18 mm).

• Installation slope. Install the drain hose with a downward slope.

• Traps are NOT permitted.

• Do NOT put the end of the hose in water.

• Drain hose extension. To extend the drain hose, use a field supplied hose with inner Ø16 mm. Do NOT forget to use a heat insulation tube on the indoor section of the extension hose.

• Condensation. Take measures against condensation. Insulate the complete drain piping in the building.

The factory default is right-side piping. For left-side piping, follow these steps:

1. Remove the insulation fixing screw on the right side and remove the drain hose.

2. Remove the drain plug on the left side and attach it to the right side. Do NOT apply lubricating oil to the drain plug.

3. Insert the drain hose on the left side and do not forget to tighten it with the fixing screw; otherwise water leakage may occur.

4. Attach the drain hose to the refrigerant piping bottom side using adhesive vinyl tape.

1. Remove the air filters.

2. Gradually pour approximately 1 liter of water in the drain pan, and check for water leaks.

The piping and other pressure-containing parts shall be suitable for refrigerant. Use phosphoric acid deoxidised seamless copper for refrigerant piping. Foreign materials inside pipes (including oils for fabrication) must be ≤30 mg/10 m.

Pipe Outer Diameter:

Piping Temper Grade and Thickness:

Depending on the applicable legislation and the maximum working pressure of the unit, larger piping thickness might be required.

Use polyethylene foam as insulation material with a heat transfer rate between 0.041 and 0.052 W/mK and a heat resistance of at least 120°C.

Insulation Thickness:

If the temperature is higher than 30°C and the humidity is higher than RH 80%, the thickness of the insulation materials should be at least 20 mm to prevent condensation on the surface of the insulation.

Keep the refrigerant piping as short as possible.

1. Connect refrigerant piping to the unit using flare connections. Coat the flare inner surface with ether oil or ester oil when connecting a flare nut. Tighten 3 or 4 turns by hand, before tightening firmly with a torque wrench.

2. Insulate the refrigerant piping, interconnection cable and drain hose on the indoor unit together using finishing tape.

Tightening Torque and Flare Dimensions:

1. Charge the system with nitrogen gas up to a gauge pressure of at least 200 kPa (2 bar). It is recommended to pressurize to 3000 kPa (30 bar) or higher (depending on local legislation) to detect small leaks.

2. Check for leaks by applying a recommended bubble test solution to all connections. NEVER use soap water.

3. Discharge all nitrogen gas.

1. Vacuum the system until the pressure on the manifold indicates -0.1 MPa (-1 bar).

2. Leave as is for 4-5 minutes and check the pressure:

3. Vacuum the system for at least 2 hours to a manifold pressure of -0.1 MPa (-1 bar).

4. After turning the pump OFF, check the pressure for at least 1 hour.

5. If you do NOT reach the target vacuum or CANNOT maintain the vacuum for 1 hour, do the following:

• Check for leaks again.

• Perform vacuum drying again.

1. Set the indoor unit on the mounting plate hooks. Use the “Δ” marks as a guide.

2. Open the front panel, and then the service cover.

3. Pass the interconnection cable from the outdoor unit through the feed-through wall hole, through the back of the indoor unit and through the front side.

4. Bend the end of the cable up.

5. Strip the wire ends approximately 15 mm.

6. Match wire colours with terminal numbers on the indoor unit terminal blocks and firmly screw the wires to the corresponding terminals.

7. Connect the earth wire to the corresponding terminal.

8. Firmly fix the wires with the terminal screws.

9. Pull the wires to make sure that they are securely attached, then retain the wires with the wire retainer.

10. Shape the wires so that the service cover fits securely, then close the service cover.

After the drain piping, refrigerant piping and the electrical wiring are finished, wrap refrigerant piping, interconnection cable and drain hose together using insulation tape. Overlap at least half the width of the tape with each turn.

1. Set the indoor unit on the mounting plate hooks. Use the “Δ” marks as a guide.

2. Pass the drain hose and refrigerant piping through the wall hole and seal the gap with a putty.

3. Press the bottom frame of the unit with both hands to set it on the bottom hooks of the mounting plate. Make sure that the wires do NOT get squeezed anywhere. Take care that the interconnection cable does NOT get caught in the indoor unit.

4. Press the bottom edge of the indoor unit with both hands until it is firmly caught by the mounting plate hooks.

5. Secure the indoor unit to the mounting plate using 2 indoor unit fixing screws M4×12L (accessory).

In case 2 indoor units are installed in 1 room, you can change the channel for the infrared signal receiver on one indoor unit to avoid signal confusion. Perform this setting for only one of the units.

1. Remove the batteries from the user interface.

2. Cut the address jumper on the indoor unit’s PCB. Be careful not to damage surrounding parts.

3. Turn the power supply on. The flap will open and close to set the reference position.

4. On the remote, press the TEMP UP, TEMP DOWN, and OFF buttons simultaneously.

5. Press the TEMP UP button.

6. Select the symbol ‘A’.

7. Press the FAN button.

8. Press the indoor unit ON/OFF switch while the operation lamp is blinking.

9. When the setting is complete, press OFF on the remote.

Address Jumper Settings:

After installation, check the following items before powering up the unit:

☐ You read the complete installation instructions.

☐ The indoor units are properly mounted.

☐ The outdoor unit is properly mounted.

☐ Check that the air inlet and outlet of the unit is NOT obstructed.

☐ There are NO missing phases or reversed phases.

☐ The refrigerant pipes (gas and liquid) are thermally insulated.

☐ Make sure drainage flows smoothly.

☐ The system is properly earthed and the earth terminals are tightened.

☐ The fuses or locally installed protection devices are installed according to this document, and have NOT been bypassed.

☐ The power supply voltage matches the voltage on the identification label of the unit.

☐ The specified wires are used for the interconnection cable.

☐ The indoor unit receives the signals of the user interface.

☐ There are NO loose connections or damaged electrical components in the switch box.

☐ The insulation resistance of the compressor is OK.

☐ There are NO damaged components or squeezed pipes on the inside of the indoor and outdoor units.

☐ There are NO refrigerant leaks.

☐ The correct pipe size is installed and the pipes are properly insulated.

☐ The stop valves (gas and liquid) on the outdoor unit are fully open.

A test run may be performed in cooling or heating mode. Refer to the operation manual for setting temperature and operation mode.

1. In cooling mode, select the lowest programmable temperature. In heating mode, select the highest programmable temperature. The test run can be disabled if necessary.

2. When the test run is finished, set the temperature to a normal level. In cooling mode: 26~28°C, in heating mode: 20~24°C.

3. Make sure that all functions and parts are working properly.

4. The system stops operating 3 minutes after the unit is turned OFF.

When operating the air conditioner in Cooling mode in winter, set it to test run operation using the following method:

1. Press TEMP UP, TEMP DOWN, and OFF simultaneously.

2. Press TEMP UP.

3. Select ‘7’.

4. Press FAN.

5. Press COOL to switch the system on. Test run operation will stop automatically after about 30 minutes.

6. To stop operation, press OFF.

Do NOT try to dismantle the system yourself. Dismantling of the system, treatment of the refrigerant, oil and other parts MUST comply with applicable legislation. Units MUST be treated at a specialised treatment facility for reuse, recycling and recovery.

The following tables explain the symbols used in the wiring diagrams for the DAIKIN CTXF35F5V1B.

General Symbols:

Colour Codes:

Component Codes: