TOSHIBA CARRIER RAV-SP240KRT-UL (02) PDF MANUAL

Other included items are the Owner’s manual and Installation manual.

Ask an authorized dealer or qualified installation professional to install (including moving)/maintain the air conditioner. Inappropriate installation may result in water leakage, electric shock or fire.

Be sure to connect ground wire. Incomplete grounding can cause an electric shock. Do not connect ground wires to gas pipes, water pipes, lightning rods or ground wires for telephone wires.

Turn off the circuit breaker and leakage breaker before attempting any electrical work. Make sure all circuit breaker and leakage breaker are off. Failure to do so may cause electric shock.

Install the refrigerant pipe securely during the installation work before operating the air conditioner. If the air conditioner is operated with the valve open and without the refrigerant pipe, the compressor sucks air and the refrigeration cycle is over pressurized, which may cause a burst or injury.

When moving the air conditioner for installation into another place, be very careful not to enter any gaseous matter other than the specified refrigerant into the refrigeration cycle. If air or any other gas is mixed in the refrigerant, the gas pressure in the refrigeration cycle becomes abnormally high and it resultingly causes pipe burst and injuries to persons.

Perform installation work properly according to the Installation Manual. Inappropriate installation may result in water leakage, electric shock or fire.

When the air conditioner is installed in a small room, provide appropriate measures to ensure that the concentration of refrigerant leakage in the room does not exceed the critical level.

Install the air conditioner securely in a location where the base can sustain the weight adequately.

Perform the specified installation work to guard against an earthquake. If the air conditioner is not installed appropriately, accidents may occur due to the falling unit.

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 the installation work, confirm that refrigerant gas does not leak. If refrigerant gas leaks into the room and flows near a fire source, such as a cooking range, noxious gas might generate.

Electrical work must be performed by a qualified electrician in accordance with the Installation Manual. Make sure the air conditioner uses an exclusive power supply. An insufficient power supply capacity or inappropriate installation may cause fire.

Use the specified wires for wiring, connect the terminals securely, and fix to prevent external forces applied to the terminals from affecting them.

Conform to the regulations of the local electric company when wiring the power supply. Inappropriate grounding may cause electric shock.

For the refrigerant pump-down work (collection of refrigerant from the pipe to the compressor), stop the compressor before disconnecting the refrigerant pipe. If the refrigerant pipe is disconnected while the compressor is working with the valve open, the compressor sucks air and the refrigeration cycle is over pressurized, which may cause a burst or injury.

This air conditioner adopts the new HFC refrigerant (R410A) which does not destroy the ozone layer.

The characteristics of R410A refrigerant are; easy to absorb water, oxidizing membrane or oil, and its pressure is approx. 1.6 times higher than that of refrigerant R22. Accompanied with the new refrigerant, refrigerating oil has also been changed. Therefore, during installation work, be sure that water, dust, former refrigerant, or refrigerating oil does not enter the refrigerating cycle.

To prevent charging an incorrect refrigerant and refrigerating oil, the sizes of connecting sections of charging port of the main unit and installation tools are changed from those for the conventional refrigerant.

Accordingly, exclusive tools are required for the new refrigerant (R410A).

For connecting pipes, use new and clean piping designed for R410A, and please care so that water or dust does not enter.

The installation fuse must be used for the power supply line of this conditioner.

Tighten the flare nut with a torque wrench in the specified manner. Excessive tightening of the flare nut may cause a crack in the flare nut after a long period, which may result in refrigerant leakage.

Wear heavy gloves and a long sleeve shirt during the installation work to avoid injury.

Install the air conditioner at a place strong enough to withstand the weight of the unit. If the strength is not enough, the unit may fall down resulting in injury.

Do not install the air conditioner in a location subject to a risk of exposure to a combustible gas. If a combustible gas leaks and stays around the unit, a fire may occur.

Upon approval of the customer, install the air conditioner in a place that satisfies the following conditions:

Place where the unit can be installed horizontally.

Place where a sufficient servicing space can be ensured for safety maintenance and check.

Place where drained water will not cause any problem.

Avoid installing in the following places:

Place exposed to air with high salt content (seaside area), or place exposed to large quantities of sulfide gas (hot spring). (Should the unit be used in these places, special protective measures are needed.)

A restaurant kitchen where a lot of oil is used or place near machines in a factory (Oil adhering to the heat exchanger and resin part (cross flow fan) in the indoor unit may reduce the performance, generate mist or dew drop, or deform or damage resin parts.)

Place where organic solvent is used nearby.

Place close to a machine generating high frequency.

Place where the discharged air blows directly into the window of the neighbor’s house. (Outdoor unit)

Place where noise of the outdoor unit is easily transmitted. (When installing the outdoor unit on the boundary with the neighbor, pay due attention to the level of noise.)

Place with poor ventilation.

Do not use the air conditioner for special purposes such as preserving food, precision instruments, or art objects, or where breeding animals or growing plants are kept. (This may degrade the quality of preserved materials.)

Place where any of high-frequency appliances (including inverter devices, private power generators, medical equipment, and communication equipment) and inverter-type fluorescent light is installed. (A malfunction of the air conditioner, abnormal control, or problems due to noise to such appliances/equipment may occur.)

When the wireless remote controller is used in a room equipped with an inverter-type fluorescent light or at a place exposed to direct sunlight, signals from the remote controller may not be received correctly.

Place near a door or window exposed to humid outside air (Dew dropping may form.).

Place where special spray is used frequently.

The indoor unit shall be installed so that its top surface comes at a height of 6’7″ (2 m) or more. Also, it must be avoided to put anything on top of the indoor unit.

Provide a space as shown for service clearance for the cross flow fan (33.5″ (850 mm) or more above the unit, and 2.0″ (50 mm) or more in front of the unit).

A place which provides the spaces around the indoor unit as shown in the above diagram.

A place where there is no obstacle near the air inlet and outlet.

A place that allows easy installation of the piping to the outdoor unit.

A place which allows the front panel to be opened.

Direct sunlight to the indoor unit’s wireless receiver should be avoided.

The microprocessor in the indoor unit should not be too close to RF (Radio Frequency) noise sources.

Install batteries in the wireless remote controller:

1. Remove the battery cover.

2. Insert 2 new batteries (R03 [AAA] type) following the (+) and (-) positions.

Place the wireless remote controller where there are no obstacles such as a curtain that may block the signal from the indoor unit.

Do not install the remote controller in a place exposed to direct sunlight or close to a heating source, such as a stove.

Keep the remote controller at least 3’3″ (1 m) apart from the nearest TV set or stereo equipment. This is necessary to prevent image disturbance or noise interference.

The location of the remote controller should be determined as shown, ensuring it is within the reception range (23′ (7m) axial distance, 16’5″ (5m) at a 45-75 degree angle from the indoor unit).

Install the air conditioner certainly to sufficiently withstand the weight. If the strength is insufficient, the unit may fall down resulting in human injury.

Perform a specified installation work to guard against strong wind or earthquake. An incomplete installation can cause accidents by the units falling and dropping.

Strictly comply with the following rules to prevent damage of the indoor units and human injury:

Do not put a heavy article on the indoor unit. (Even units are packaged)

Carry in the indoor unit as it is packaged if possible. If carrying in the indoor unit unpacked by necessity, be sure to use buffering cloth, etc. to not damage the unit.

To move the indoor unit, do not apply force to the refrigerant pipe, drain pan, foamed parts, or resin parts, etc.

Carry the package by two or more persons, and do not bundle it with plastic band at positions other than specified.

Be careful to the following items when installing the unit:

Considering air discharge direction, select an installation place where discharge air can circulate evenly in a room. Avoid installing the unit at place with “NO GOOD” mark, which means the area is not cooled well.

In case of installing the refrigerant pipes from the rear:

1. Decide the hole position for piping at 7.1″ (180 mm) from the arrow mark (⇨) on the installation plate and drill a hole at a slight downward slant toward the outdoor side.

Pipe hole; dia. 2.6″ (65 mm): SP180 type

Pipe hole; dia. 3.1″ (80 mm): SP240 type

When drilling a wall that contains a metal lath, wire lath or metal plate, be sure to use a pipe hole brim ring sold separately.

To mount the installation plate, be sure that the installation plate is fixed to the wall with screws to make the indoor unit fit to the wall.

When the installation plate is directly mounted on the wall:

1. Securely fit the installation plate onto the wall by screwing it in the upper and lower parts to hook up the indoor unit.

2. To mount the installation plate on a concrete wall with anchor bolts, utilize the anchor bolt holes as illustrated.

3. Install the installation plate horizontally in the wall.

When installing the installation plate with a mounting screw, do not use the anchor bolt hole. Otherwise, the unit may fall down and result in personal injury and property damage.

Failure to firmly install the unit may result in personal injury and product damage if the unit falls.

In case of block, brick, concrete or similar type walls, make 0.2″ (5 mm) dia. holes in the wall. Insert clip anchors for appropriate mounting screws.

Secure four corners and lower parts of the installation plate with 6 mounting screws to install it.

Apply heat-insulation for both refrigerant pipe and drain hose surely so that no dew generates inside of the equipment. (Use polyethylene foam for insulating material.)

1. Remove the front panel:

The front panel must be removed for piping connections in the left, bottom left, and rear left directions.

Open the air inlet grille upward.

Remove the four screws securing the front panel.

Slightly open the lower part of the front panel, and then pull the upper part of the front panel toward you to remove it from the rear plate.

2. Die-cutting front panel slit:

Cut out the slit on the leftward or right side of the front panel for the left or right connection and the slit on the bottom left or right side of the front panel for the bottom left or right connection with a pair of nippers.

3. Changing drain hose:

For leftward connection, bottom-leftward connection and rear leftward connection’s piping, it is necessary to change the drain hose and drain cap. Without changing the drain hose position, the indoor unit will not fit to the wall.

How to remove the drain hose:

The drain hose can be removed by removing the screw securing the drain hose and then pulling out the drain hose.

When removing the drain hose, be careful of any sharp edges of steel plate. The edges can cause injuries.

To install the drain hose, insert the drain hose firmly until the connection part contacts with heat insulator, and secure it with the original screw.

To remove the drains cap: Clip the drain cap by needle-nose pliers and pull out.

To fix the drains cap:

1) Insert a hexagonal wrench (dia. 0.16″ (4 mm)) in a center head.

2) Firmly insert the drains cap.

Do not apply lubricating oil (refrigerant machine oil) when inserting the drain cap. Application causes deterioration and drain leakage from the plug.

Firmly insert the drain hose and drain cap; otherwise, water may leak.

How to remove the drain hose:

1) Remove the front panel.

2) Remove the screws of the drain hose.

3) Pull out the drain hose.

How to fix the drain hose:

1) Put the drain hose.

2) Screw the drain hose to the indoor unit.

3) Install the front panel.

In case of right or left piping: After scribing slits of the front panel with a knife or a marking-off pin, cut them with a pair of nippers or an equivalent tool.

In case of bottom right or bottom left piping: After scribing slits of the front panel with a knife or a marking-off pin, cut them with a pair of nippers or an equivalent tool.

Bend the connecting pipe so that it is laid within 1.7″ (43 mm) above the wall surface. If the connecting pipe is laid exceeding 1.7″ (43 mm) above the wall surface, the indoor unit may unstably be set on the wall. When bending the connecting pipe, make sure to use a spring bender so as not to crush the pipe.

Bend the connection pipe within a radius of 1.2″ (30 mm).

To connect the pipe after installation of the unit:

Gas side: 22.4″ (570 mm)

Liquid side: 16.5″ (420 mm)

If the pipe is bent incorrectly, the indoor unit may unstably be set on the wall.

After passing the connecting pipe through the pipe hole, connect the connecting pipe to the auxiliary pipes and wrap the facing tape around them.

Carefully arrange pipes so that any pipe does not stick out of the rear plate of the indoor unit.

Carefully connect the auxiliary pipes and connecting pipes to one another and cut off the insulating tape wound on the connecting pipe to avoid double-taping at the joint; moreover, seal the joint with vinyl tape, etc.

Since dew results in a machine trouble, make sure to insulate both the connecting pipes. (Use polyethylene foam as insulating material.)

When bending a pipe, carefully do it, not to crush it.

1. Pass the pipe through the hole in the wall, and hook the indoor unit on the installation plate at the upper hooks.

2. Swing the indoor unit to the right and left to confirm that it is firmly hooked up on the installation plate.

3. While pressing the indoor unit onto the wall, hook it at the lower part on the installation plate. Pull the indoor unit toward you to confirm that it is firmly hooked up on the installation plate.

For detaching the indoor unit from the installation plate, pull the indoor unit toward you while pushing its bottom up at the specified parts.

The lower part of the indoor unit may float due to the condition of piping and you cannot fix it to the installation plate. In that case, use the screws provided to fix the unit and the installation plate. Especially when the pipes are pulled out from the left side, the unit must be screwed to the installation plate.

For drainage:

1. Run the drain hose sloped downwards.

Hole should be made at a slight downward slant on the outdoor side.

2. Put water in the drain pan and make sure that the water is drained out of doors.

3. When connecting extension drain hose, insulate the connecting part of extension drain hose with shield pipe.

Do not rise the drain hose or form it into a wavy shape. Do not put the drain hose end into water or the drainage ditch.

Arrange the drain pipe for proper drainage from the unit. Improper drainage can result in dew-dropping.

This air conditioner has the structure designed to drain water collected from dew, which forms on the back of the indoor unit, to the drain pan. Therefore, do not store the power cord and other parts at a height above the drain guide.

1. Use copper pipe with 0.03″ (0.8 mm) or more thickness. (In case pipe size is dia. 5/8″ (15.9 mm), with 0.04″ (1.0 mm) or more.)

2. Flare nut and flare works are also different from those of the conventional refrigerant. Take out the flare nut attached to the main unit of the air conditioner, and use it.

When the refrigerant pipe is long, provide support brackets at intervals of 8’2″ – 9’10” (2.5 – 3 m) to clamp the refrigerant pipe. Otherwise, abnormal sound may be generated.

Important 4 points for piping work:

1. Remove dust and moisture from the inside of the connecting pipes.

2. Tight connection (between pipes and unit)

3. Evacuate the air in the connecting pipes using a vacuum pump.

4. Check for gas leakage. (Connected points)

Permissible Piping Length and Height Difference: These vary according to the outdoor unit. For details, refer to the Installation Manual attached to the outdoor unit.

Flaring instructions:

Cut the pipe with a pipe cutter.

Remove burrs completely. Remaining burrs may cause gas leakage.

Insert a flare nut into the pipe, and flare the pipe. As the flaring sizes of R410A differ from those of refrigerant R22, the flare tools newly manufactured for R410A are recommended. However, the conventional tools can be used by adjusting the projection margin of the copper pipe.

Projection margin in flaring: B (Unit: in (mm)) Rigid (Clutch type)

Pipe size (dia.: in (mm))

Flaring dia. meter size: A (Unit: in (mm))

In case of flaring for R410A with the conventional flare tool, pull it out approx. 0.02″ (0.5 mm) more than that for R22 to adjust to the specified flare size. The copper pipe gauge is useful for adjusting projection margin size.

Do not apply excessive torque. Otherwise, the nut may crack depending on the conditions.

Tightening torque (Unit: ft lbs (N·m))

Tightening torque of flare pipe connections: Pressure of R410A is higher than that of R22 (Approx. 1.6 times). Therefore, using a torque wrench, tighten the flare pipe connecting sections which connect the indoor and outdoor units to the specified tightening torque. Incorrect connections may cause not only a gas leak, but also a trouble of the refrigeration cycle. Align the centers of the connecting pipes and tighten the flare nut as far as possible with your fingers. Then tighten the nut with a spanner and torque wrench as shown in the figure.

Tightening with an excessive torque may crack the nut depending on installation conditions. Tighten the nut within the specified tightening torque.

Piping with outdoor unit: Shape of valve differs according to the outdoor unit. For details of installation, refer to the Installation Manual of the outdoor unit.

Heat insulation for the pipes should be done separately for the liquid side and gas side. Because both of the liquid and gas side pipes become a low temperature during cooling operation, sufficient heat insulation should be done to prevent condensation.

Heat insulator with a heat resistance of 248 °F (120 °C) or more must be used for the gas side pipe.

The pipe connection section of the indoor unit must be heat insulated securely and compactly with the attached heat insulator. Fix with vinyl tape.

Air purge: Using a vacuum pump, perform vacuuming from the charge port of the valve of the outdoor unit. For details, follow to the Installation Manual attached to the outdoor unit. Never use the refrigerant sealed in the outdoor unit for air purge.

For the tools such as charge hose, etc., use those manufactured exclusively for R410A.

Refrigerant amount to be added: For addition of the refrigerant, add refrigerant “R410A” referring to the attached Installation Manual of the outdoor unit. Be sure to use a scale to charge the refrigerant of specified amount.

Charging an excessive or too little amount of refrigerant causes a trouble of the compressor. Be sure to charge the refrigerant of specified amount. A personnel who charged the refrigerant should write down the pipe length and the added refrigerant amount in the nameplate attached to the service panel of the outdoor unit. It is necessary to troubleshoot the compressor and refrigeration cycle malfunction.

Open the valve fully: Open the valve of the outdoor unit fully. A 4 mm hexagon wrench is required for opening the valve. For details, refer to the Installation Manual attached to the outdoor unit.

Gas leak check: Check with a leak detector or soap water whether gas leaks or not, from the pipe connecting section or cap of the valve.

Use a leak detector manufactured exclusively for HFC refrigerant (R410A, R134a, etc.).

Wireless remote control A-B selection: Use this when using 2 wireless remote controllers for respective air conditioners that are closely installed.

Wireless remote controller B setup:

1. Press the ON/OFF button on the indoor unit to turn the air conditioner ON.

2. Point the wireless remote controller at the indoor unit.

3. Push and hold the CHK button on the wireless remote controller by the tip of the pencil. “00” will be shown on the display.

4. Press the MODE button during pushing CHK. “B” will be shown on the display and “00” will disappear and the air conditioner will turn OFF. The wireless remote controller B is memorized.

Repeat the above step to reset the wireless remote controller to be A.

The wireless remote controllers do not display “A”.

The factory default of the wireless remote controllers is “A”.

Consult local building codes, NEC (National Electrical Code) or CEC (Canadian Electrical Code) for special requirements. Using the specified wires, ensure to connect the wires, and fix wires securely so that the external tension to the wires do not affect the connecting part of the terminals. Incomplete connection or fixation may cause a fire, etc.

Be sure to connect ground wire. Incomplete grounding causes an electric shock. Do not connect ground wires to gas pipes, water pipes, lightning rods or ground wires for telephone wires.

Appliance shall be installed in accordance with national wiring regulations. Capacity shortage of circuit breaker and leakage breaker or incomplete installation may cause an electric shock or a fire.

If incorrect/incomplete wiring is carried out, it will cause an electrical fire or smoke.

Be sure to install a circuit breaker and leakage breaker that are not tripped by shock waves. If a circuit breaker and leakage breaker are not installed, an electric shock may be caused.

Be sure to use the cord clamps attached to the product.

Do not damage or scratch the conductive core and inner insulator of the Indoor/Outdoor connecting wire when peeling them.

Use the power cord and inter-connecting wire of specified thickness, type, and protective devices required.

Never connect 208/230 V wired remote controller/central control wiring blocks (U3, A, B, etc.) for control wiring. (Otherwise, the system will fail.)

For Indoor/Outdoor connecting wire, strictly conform to the Local Regulation in each country.

For wiring of power supply of the outdoor units, follow the Installation Manual of each outdoor unit.

Perform the electric wiring so that it does not come into contact with the high-temperature part of the pipe. The coating may melt resulting in an accident.

Connect the wires to the terminal blocks and fix the wires with the cord clamp as no force applies to the wires.

Run the refrigerant piping line and control wiring line in the same line.

Do not turn on the circuit breaker and leakage breaker of the indoor unit until vacuuming of the refrigerant pipes completes.

Wire Quantity x size:

Length of the Indoor/Outdoor unit connecting wires:

Use the same size wire for the outdoor unit power cable and connecting wire between the indoor unit and the outdoor unit when the outdoor unit is RAV-SP180AT2 (2HP).

Use copper supply wires.

Use UL wires rated 600 V for the Indoor/Outdoor unit connecting wires.

Use UL wires rated 300 V for the remote controller wires.

Be sure to connect the wires matching the terminal numbers. Incorrect connection causes a trouble.

The low-voltage circuit is provided for the wired remote controller. (Do not connect the high-voltage circuit)

When using the supplied wireless remote controller:

1. Remove the air inlet grille. Open the air inlet grille upward and pull it toward you.

2. Remove the front panel.

3. Remove the terminal cover.

4. Remove the conduit cover.

5. Attach a conduit to the conduit cover with a lock nut.

6. Take the Indoor/Outdoor connecting wire (3 x AWG12) and the ground wire (1 x AWG12) out of the cable slot on the rear panel so that it protrudes about 11.0″ (280 mm) from the conduit cover.

7. Insert the Indoor/Outdoor connecting wire (3 x AWG12 (polar)) fully into the terminal block and secure it tightly with screws. Tightening torque: 0.9 ft lbs (1.2 N·m). Secure the ground wire (1 x AWG12) with the ground screw.

8. Clamp the Indoor/Outdoor connecting wire and the ground wire with the cord clamp.

9. Attach the conduit cover.

10. Attach the terminal cover, the front panel and the air inlet grille to the indoor unit.

Be sure to refer to the wiring diagram attached inside the front panel.

Check local electrical cords and also any specific wiring instructions and limitations.

Beware of the metal plate edge when working on the unit. The edge can be sharp and may cut your hand.

Firmly tighten the screws of the terminal block.

Keep the wire length as shown in the figure (0.08″ (2 mm) or less) when it is connected to the terminal block.

1. Remove the air inlet grille. Open the air inlet grille upward and pull it toward you.

2. Remove the front panel.

3. Remove the terminal cover and the clamp base.

4. Insert the wired remote controller wire fully into the wired remote controller/central control terminal block, A and B, and secure it tightly with screws.

Strip off the wire approx. 0.4″ (9 mm) to connect.

Non polarity, 2 core wire is used for wiring of the wired remote controller. (2 x AWG20)

5. Clamp the wired remote controller wire with the cord clamp.

6. Install the clamp base with a screw.

7. Remove the conduit cover.

8. Attach a conduit to the conduit cover with a lock nut.

9. Take the Indoor/Outdoor connecting wire (3 x AWG12 (polar)) and the ground wire (1 x AWG12) out of the cable slot on the rear panel so that it protrudes about 11.0″ (280 mm) from the conduit cover.

10. Insert the Indoor/Outdoor connecting wire (3 x AWG12 (polar)) fully into the terminal block and secure it tightly with screws. Tightening torque: 0.12 kgf·m (1.2 N·m). Secure the ground wire (1 x AWG12) with the ground screw.

11. Clamp the Indoor/Outdoor connecting wire with the cord clamp.

12. Attach the conduit cover.

13. Attach the terminal cover, the front panel and the air inlet grille to the indoor unit.

Be sure to refer to the wiring diagram attached inside the front panel.

Check local electrical cords and also any specific wiring instructions and limitations.

Do not catch the wired remote controller wire when installing the clamp base.

Beware of the metal plate edge when working on the unit. The edge can be sharp and may cut your hand.

Firmly tighten the screws of the terminal block.

Keep the wire length as shown in the figure (0.08″ (2 mm) or less) when it is connected to the terminal block.

A wired remote controller is necessary for this function. This function cannot be operated with a wireless remote controller.

When you use this air conditioner for the first time, it takes approx. 5 minutes until the remote controller becomes available after power-on. This is normal.

Change the settings while the air conditioner is not working. (Be sure to stop the air conditioner before making settings.)

Procedure 1:

Push the FILTER, RESET, and TEST buttons simultaneously for at least 4 seconds. After a while, the display flashes as shown. Confirm that the CODE No. is [01]. If the CODE No. is not [01], push the TEST button to erase the display content, and repeat the procedure from the beginning. (No operation of the remote controller is accepted for a while after the TEST button is pushed.)

Procedure 2:

Each time you push the UNIT LOUVER button, indoor unit numbers in the control group change cyclically. Select the indoor unit you want to change settings for. The fan of the selected unit runs and the louvers start swinging. You can confirm the indoor unit for which you want to change settings.

Procedure 3:

Using the temp. setup UP/DOWN buttons, specify CODE No. [**].

Procedure 4:

Using the timer time UP/DOWN buttons, select SET DATA [****].

Procedure 5:

Push the SET button. When the display changes from flashing to lit, the setup is completed.

To change settings of another indoor unit, repeat from Procedure 2.

To change other settings of the selected indoor unit, repeat from Procedure 3.

Use the SET button to clear the settings.

To make settings after the SET button was pushed, repeat from Procedure 2.

Procedure 6:

When settings have been completed, push the TEST button to determine the settings. When the TEST button is pushed, “SETTING” flashes and then the display content disappears and the air conditioner enters the normal stop mode. (While “SETTING” is flashing, no operation of the remote controller is accepted.)

According to the installation condition, the lighting time of the filter sign (Notification of filter cleaning) can be changed.

Follow the basic operation procedure (1→2→3→4 → 5 → 6).

For the CODE No. in Procedure 3, specify [01].

For the [SET DATA] in Procedure 4, select the SET DATA of filter sign lighting time from the following table:

When it is difficult to obtain satisfactory heating due to the installation place of the indoor unit or structure of the room, the detection temperature of heating can be raised. Also use a circulator, etc. to circulate heat air near the ceiling.

Follow the basic operation procedure (1→2→3→4→5→ 6).

For the CODE No. in Procedure 3, specify [06].

For the SET DATA in Procedure 4, select the SET DATA of shift value of detection temperature to be set up from the table below:

1. Push the SAVE button for at least four seconds when the air conditioner is not working. “SETTING” flashes. Indicates CODE No. “C2.”

2. Select an indoor unit to be set by pushing the UNIT LOUVER button (left side of the button). Each time you push the button, unit numbers change as follows: UNIT No. 1-1, UNIT No. 1-2, UNIT No. 1-3, UNIT No. 1-4.

3. Adjust the power save setting by pushing the TIME UP/DOWN buttons. Each push of the button changes the power level by 1% within the range from 100% to 50%. Factory default is 75%.

4. Determine the setting by pushing the SET button.

5. Push the TEST button to complete the setting.

This function is available to call the service monitor mode from the remote controller during a test run to acquire temperatures of sensors of the remote controller, indoor unit, and outdoor unit.

1. Push the TEMP. and TEST buttons simultaneously for at least 4 seconds to call the service monitor mode. The service monitor indicator lights up and the header indoor unit number is displayed first. CODE No. “00” is also displayed.

2. Pushing the TEMP. UP/DOWN buttons, select the number of the sensor, etc. (CODE No.) to be monitored. (See the following table.)

3. Pushing the UNIT LOUVER button (left side of the button), select an indoor unit to be monitored. The sensor temperatures of indoor units and their outdoor unit in the control group are displayed.

4. Push the TEST button to return to the normal display.

Indoor unit data:

Outdoor unit data:

Group control is not available with the supplied wireless remote controller. Use the optional wired remote controller.

One remote controller can control maximum 8 indoor units as a group.

For wiring procedure and wiring method of the individual line (Identical refrigerant line) system, follow to “Electric work”.

Wiring between lines is performed in the following procedure:

Connect the terminal block (A/B) of the indoor unit connected with a remote controller to the terminal blocks (A/B) of the indoor units of other indoor units by wiring the inter-unit wire of the remote controller.

When the circuit breaker and leakage breaker are turned on, the automatic address setup starts and which indicates that the address is being set up flashes on the display part. During setup of automatic address, the remote controller operation is not accepted.

Required time up to the finish of automatic addressing is approx. 5 minutes.

In some cases, it is necessary to change the address manually after setup of the automatic address according to the system configuration of the group control.

While the operation stops, change the setup. (Be sure to stop the operation of the unit.)

Procedure 1:

Push the FILTER, RESET, and TEST buttons simultaneously for 4 seconds or more. After a while, the display part flashes as shown. Check the displayed CODE No. is [10]. If the CODE No. is other than [10], push the TEST button to erase the display and repeat procedure from the first step. (After pushing the TEST button, operation of the remote controller is not accepted for approx. 1 minute.) (For a group control, No. of the firstly displayed indoor unit becomes the header unit.)

Procedure 2:

Every pushing the UNIT LOUVER button, the indoor UNIT No. in the group control is displayed in order. Select the indoor unit of which setup is changed. At this time, the position of the indoor unit of which setup is changed can be confirmed because the fan and louver of the selected indoor unit operate.

Procedure 3:

1. Using the TEMP. UP/DOWN buttons, specify CODE No. [12]. (CODE No. [12]: Line address)

2. Using the TIMER TIME UP/DOWN buttons, change the line address from [3] to [2].

3. Push the SET button. At this time, the setup finishes when the display changes from flashing to lighting. The Indoor UNIT No. before setup change is displayed.

Procedure 4:

1. Using the TEMP. UP/DOWN buttons, specify CODE No. [13]. (CODE No. [13]: Indoor address)

2. Using the TIMER TIME UP/DOWN buttons, change the indoor address from [3] to [2].

3. Push the SET button. At this time, the setup finishes when the display changes from flashing to lighting. The Indoor UNIT No. before setup change is displayed.

Procedure 5:

1. Using the TEMP. UP/DOWN buttons, specify CODE No. [14]. (CODE No. [14]: Group address)

2. Using the TIMER TIME UP/DOWN buttons, change the SET DATA from [0001] to [0002]. (SET DATA [Header unit: 0001] [Follower unit: 0002])

3. Push the SET button. At this time, the setup finishes when the display changes from flashing to lighting. The Indoor UNIT No. before setup change is displayed.

Procedure 6:

If there is another indoor unit to be changed, repeat procedures 2 to 5 to change the setup.

When the above setup has finished, push the UNIT LOUVER button to select the indoor UNIT No. before change of setup, specify CODE No. [12], [13], [14] in order with the TEMP. UP/DOWN buttons, and then check the changed contents.

Address change check Before change: [3-3-1] → After change: [2-2-2]

Pushing the SET button clears the contents of which setup was changed. (In this case, procedure from 2 is repeated.) The Indoor UNIT No. before setup change is displayed.

Procedure 7:

After check of the changed contents, push the TEST button. (Setup is determined.) When pushing the TEST button, the display disappears and the status becomes the usual stop status. (When pushing the TEST button, the operation from the remote controller is not accepted for approx. 1 minute.) If the operation from the remote controller is not accepted even 1 minute or more passed after pushing the TEST button, it is considered that the address setup is incorrect. In this case, the automatic address must be again set up. Therefore, repeat the procedure of the setup change from Procedure 1.

To recognize the position of the corresponding indoor unit though the indoor UNIT No. is known: Check the position during operation stop. (Be sure to stop operation of the set.)

For centrally controlling the system by the SDI series on their own, setting for the terminating resistor is required.

Use switch SW01 for the setting.

Place the terminating resistor setting only for the indoor unit with the smallest line address number.

1. Remove the front panel.

Before removing the front panel, direct the horizontal louver to the direction shown in the figure.

Remove the screws securing the front panel, and detach it from the indoor unit.

2. Remove the drain guide and disconnect the ground wire, TCJ sensor, TC sensor, and motor lead (louver motor, fan motor).

3. Remove the screws and detach the electric parts box.

4. Remove the electric parts box cover and set bit1 of SW01 on the board to ON. (Do not touch SW02 as it is used for other setting.)

5. Assemble the removed parts by reversing steps 1 to 4.

Insert the sensors and motor lead (louver motor, fan motor) into the original positions.

Connect the sensor and the motor lead certainly back to the previous position. If they are not properly connected, the system will not operate or other errors may occur.

When connecting air conditioners of the SDI series to the TCC-LINK central control system for central control using this product, set the addresses of indoor units using the following procedure.

After completion of ELECTRIC WORK construction, system power ON.

The system performs automatic address setup after power-on.

If automatic address setup has not been performed successfully, set addresses manually. Refer to “Manual address setup procedure”.

If indoor units are under group control, continue. If not, set central control addresses (refer to manual of the central control system).

If all indoor units under central control are set to header units (group address = 1), continue. If not, set indoor units under central control to header units again, and set those that are out of central control to follower units again. Refer to “Manual address setup procedure”.

Set central control addresses (refer to the manual of the central control system).

Since all line addresses are set to “1” except for group control by the automatic address setup function after system power-on, change the line addresses for each refrigeration system using the wired remote controller.

Example of addresses after automatic address setup:

After manual system change:

For changing/setting line addresses using the wired remote controller, refer to “Manual address setup procedure”.

Line addresses must be unique for each refrigeration system. Set a line address that is different from any of the line addresses of other refrigeration systems. (If indoor units of the SDI series are operated under central control together with those of the SMMS series, set line addresses different from those of the SMMS series.)

The line address change/setting procedure for up to the 29th refrigeration system is the same as that described in step 1 on the previous page.

Since all line addresses are set to “1” except for group control by the automatic address setup function after system power-on, change the line addresses for each refrigeration system using the wired remote controller.

Also change the indoor addresses so that they are not duplicated.

Example of addresses after automatic address setup:

After manual system change:

For changing/setting line addresses using the wired remote controller, refer to “Manual address setup procedure”.

Line addresses must be unique for each refrigeration system. Set a line address that is different from any of the line addresses of other refrigeration systems. (If indoor units of the SDI series are operated under central control together with those of the SMMS series, set line addresses different from those of the SMMS series.)

A wired remote controller is necessary for this function. This function cannot be operated with a wireless remote controller.

Before turning on the circuit breaker and leakage breaker, carry out the following procedure:

1) Using a 500V-megger, check that resistance of 1MΩ or more exists between the terminal block of the power supply and the ground (grounding). If resistance of less than 1MΩ is detected, do not run the unit.

2) Check the valve of the outdoor unit being opened fully.

To protect the compressor at activation time, leave power-ON for 12 hours or more before operating.

How to execute a test run: Using the wired remote controller, operate the unit as usual. For the procedure of the operation, refer to the attached Owner’s Manual.

A forced test run can be executed in the following procedure even if the operation stops by thermo.-OFF.

In order to prevent a serial operation, the forced test run is released after 60 minutes have passed and returns to the usual operation.

Do not use the forced test run for cases other than the test run because it applies an excessive load to the devices.

Procedure 1:

Keep the TEST button pushed for 4 seconds or more. [TEST] is displayed on the display part and the selection of mode in the test mode is permitted.

Procedure 2:

Push the ON/OFF button.

Procedure 3:

Using the MODE button, select the operation mode, [COOL] or [HEAT].

Do not run the air conditioner in a mode other than [COOL] or [HEAT].

The temperature controlling function does not work during a test run.

The detection of error is performed as usual.

Procedure 4:

After the test run, push the ON/OFF button to stop a test run.

Procedure 5:

Push the TEST check button to cancel (release from) the test run mode. ([TEST] disappears on the display and the status returns to normal.)

For the operation procedure, be sure to follow the Owner’s Manual.

Finish the forced cooling operation in a short time because it applies excessive strength to the air conditioner.

A test operation of forced heating is unavailable. Perform a test operation by heating operation using the wireless remote controller. However heating operation may not be carried out according to the temperature conditions.

Check wiring/piping of indoor and outdoor units:

1. When pushing the ON/OFF button 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 the ON/OFF button once again (Approx. 1 second). The louver closes and the operation stops.

Check transmission of remote controller:

1. Push the ON/OFF button of the remote controller to check if an operation can also start by the remote controller.

“Cooling” operation by the remote controller may be unavailable according to the temperature conditions.

Check wiring/piping of the indoor and outdoor units in forced cooling operation.

A wired remote controller is necessary for this function. This function cannot be operated with a wireless remote controller.

When a trouble occurs in the air conditioner, the check code and the indoor UNIT No. appear on the display part of the remote controller. The check code is only displayed during the operation.

If the display disappears, operate the air conditioner according to the following “Confirmation of error history” for confirmation.

Procedure 2:

Every pushing of the TEMP. UP/DOWN button used to set temperature, the trouble history stored in memory is displayed in order. The numbers in CODE No. indicate CODE No. [01] (latest) → [04] (oldest).

Do not push the SET button because all the trouble history of the indoor unit will be deleted.

Procedure 3:

After confirmation, push the TEST button to return to the usual display.

Confirmation of error history:

When a trouble occurred on the air conditioner, the trouble history can be confirmed with the following procedure. (The trouble history is stored in memory up to 4 troubles.) The history can be confirmed from both operating status and stop status.

Procedure 1:

When pushing the FILTER, RESET, and TEST buttons at the same time for 4 seconds or more, the following display appears. If [Service check] “F” is displayed, the mode enters the trouble history mode.

[01: Order of trouble history] is displayed in CODE No. window.

[Check code] is displayed in CHECK window.

[Indoor unit address in which an error occurred] is displayed in Unit No.

Table of Check Codes and Parts to be Checked: