TCL Split Type Air Conditioner Instruction Manual

Contents

• Safety Precautions
• Names of Parts
• Indoor Unit Display
• Emergency Function & Auto-Restart Function
• Remote Controller
• Operating Instructions
• Installation Manual
• Maintenance
• Troubleshooting

Safety Precautions

For the Installer

• The ratings of the fuse installed in the built-in control unit are 4A/250V.
• The appliance must be fitted with means for disconnection from the supply mains having a contact separation in all poles that provide full disconnection under overvoltage category III conditions, and these means must be incorporated in the fixed wiring in accordance with the wiring rules.
• Only use the air conditioner as instructed in this booklet.
• The appliance must be installed in accordance with applicable national regulations.
• Before accessing the terminals, all the power circuits must be disconnected from the power supply.
• The appliance shall be installed in accordance with national wiring regulations.

For the User

• Cleaning and maintenance must be carried out by specialized technical personnel. In any case, disconnect the appliance from the mains electricity supply before carrying out any cleaning or maintenance.
• If the appliance gives off smoke or there is a smell of burning, immediately cut off the power supply and contact the Service Centre.
• This appliance has been made for air conditioning domestic environments and must not be used for any other purpose.
• Have repairs carried out only by an authorized Service Centre of the manufacturer. Incorrect repair could expose the user to the risk of electric shock, etc.
• The batteries in the remote controller must be recycled or disposed of properly.
• Unhook the automatic switch if you foresee not to use the device for a long time.
• The airflow direction must be properly adjusted.

Prohibitions

• Do not obstruct the air inlet or outlet of the indoor or the outdoor unit. The obstruction of these openings causes a reduction in the operative efficiency of the conditioner with possible consequent failures or damages.
• This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
• Children should be supervised to ensure that they do not play with the appliance.
• 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.

Names of Parts

Indoor Unit Components:

• 1. Air Intake
• 2. Front Panel
• 3. Electrostatic Filter (optional)
• 4. Air Filter
• 5. Display Panel
• 6. Air Outlet
• 7. Emergency Panel
• 8. Vertical Adjustment Louver
• 9. Charcoal Filter (optional)
• 10. Horizontal Adjustment Louver

Outdoor Unit Components:

• 11. Air Intake
• 12. Drain Hose (Note: Condensate water drains at COOLING or DRY operation)
• 13. Pipes and Power Connection Cord
• 14. Air Outlet

15. Remote Controller

Note: The above figures are only intended to be a simple diagram of the appliance and may not correspond to the appearance of the units that have been purchased.

Indoor Unit Display

The indoor unit display consists of:

• 1. SLEEP indicator (? symbol)
• 2. Temperature display (if present) / Error code (88 symbol)
• 3. TIMER indicator (⏱️ symbol)

LED Functions:

Note: The shape and position of switches and indicators may be different according to the model, but their function is the same.

Emergency Function & Auto-Restart Function

Emergency Function

If the remote controller fails to work or maintenance is necessary, proceed as follows:

• Open and lift the front panel up to an angle to reach the emergency button.
• For heating models: Press the emergency button once for COOL mode, a second time within 3 seconds for HEAT mode, and a third time after 5 seconds to turn off the unit.
• For cooling-only models: Press the emergency button once for COOL mode, and again to turn off the unit.

The emergency button is located on the E-box cover of the unit under the front panel. The shape and position of the emergency button may be different according to the model, but their function is the same.

Auto-Restart Function

The appliance is preset with an auto-restart function. In case of a sudden power failure, the module memorizes the setting conditions before the power failure. When the power restores, the unit will restart automatically with the previous settings preserved by the memory function.

Remote Controller

Remote Controller Buttons

Note: The display and some functions of the remote control may vary according to the model. The shape and position of buttons and indicators may vary according to the model, but their function is the same. The unit confirms the correct reception of each button with a beep. Certain functions may not be available for your air conditioner. The batteries in the remote controller must be recycled or disposed of properly.

Remote Controller DISPLAY, Meaning of Symbols on the Liquid Crystal Display

Replacement of Batteries

• Remove the battery cover plate from the rear of the remote controller by sliding it in the direction of the arrow.
• Install the batteries according to the direction (+ and -) shown on the Remote Controller.
• Reinstall the battery cover by sliding it into place.
• Use 2 LR03 AAA (1.5V) batteries. Do not use rechargeable batteries. Replace the old batteries with new ones of the same type when the display is no longer legible.
• Do not dispose of batteries as unsorted municipal waste. Collection of such waste separately for special treatment is necessary.

Recommendations for locating and using the remote controller holder (if present). The remote controller should be kept in a wall-mounted holder.

Operating Instructions

The air sucked by the fan enters from the grill and passes through the filter, then it is cooled/dehumidified or heated through the heat exchanger. The direction of the air outlet is motorized up and down by flaps, and manually moved right and left by the vertical deflectors; for some models, the vertical deflectors could be controlled by motor as well.

Diagram showing airflow through the unit: Filter -> Heat Exchanger -> Fan

Turn ON / Turn OFF the air conditioner

Press the [Power Button] to turn on or turn off the air conditioner.

Cooling Mode

The cooling function allows the air conditioner to cool the room and at the same time reduces air humidity.

To activate the cooling function (COOL), press the MODE button until the [COOL Symbol] appears on the display. With the button ∨ or ∧, set a temperature lower than that of the room.

Heating Mode

The heating function allows the air conditioner to heat the room.

To activate the heating function (HEAT), press the MODE button until the [HEAT Symbol] appears on the display. With the button ∨ or ∧, set a temperature higher than that of the room.

In HEATING operation, the appliance can automatically activate a defrost cycle, which is essential to clean the frost on the condenser so as to recover its heat exchange function. This procedure usually lasts for 2-10 minutes. During defrosting, the indoor unit fan stops operation. After defrosting, it resumes to HEATING mode automatically.

Dry Mode

This function reduces the humidity of the air to make the room more comfortable.

To set the DRY mode, press MODE until the [DRY Symbol] appears in the display. An automatic function of pre-setting is activated.

Fan Mode (Not FAN button)

Fan mode provides air ventilation only.

To set the FAN mode, press MODE until the [FAN Symbol] appears on the display.

Auto Mode

Automatic mode.

To set the AUTO mode, press MODE until the [AUTO Symbol] appears on the display. In AUTO mode, the run mode will be set automatically according to the room temperature.

Change the Fan Speed

Press the FAN button to set the running fan speed. It can be set to AUTO/MUTE/LOW/MID-LOW/MID/MID-HI/HIGH/TURBO speed.

Air Flow Control

1. Normal 4-way air flow (vertical and horizontal):

• (1) Press the [Vertical Swing Button] to activate the horizontal flaps to swing from up to down. Press again to stop the swing movement at the current angle.
• (2) Press the [Horizontal Swing Button] to activate the vertical deflectors to swing from left to right. Press again to stop the swing movement at the current angle.

2. Vector precise air flow:

• (1) Press and hold the [Horizontal Swing Button] for 1s to enter horizontal vector air flow mode. You can select a small swing angle. Press the [Horizontal Swing Button] again to exit.
• (2) Press and hold the [Vertical Swing Button] for 1s to enter vertical vector air flow mode. You can select a small swing angle. Press the [Vertical Swing Button] again to exit.

3. If the vertical deflectors are positioned manually (which are placed under the flaps), they are allowed to move the air flow direct to rightward or leftward.

Note: This adjustment must be done while the appliance is switched off. Never position “Flaps” manually, as the delicate mechanism might be seriously damaged! Never poke fingers, sticks or other objects in the air inlet or outlet vents. Such accidental contact with live parts might cause unforeseeable damage or injury.

Gentle Wind (Optional)

In this mode, the appliance will close its vertical louvers, allowing air flow through the holes of the louvers. The room will be cool but without direct wind.

Press the GENTLE WIND button shortly; the [GENTLE WIND Symbol] appears on the display, and the appliance will run in GENTLE WIND mode. Press again to cancel it.

Note: The gentle wind function is available in COOLING mode only.

I FEEL Function

Press the I FEEL button to activate the function; the [I FEEL Symbol] will appear on the remote display. Press again to deactivate this function.

This function enables the remote control to measure the temperature at its current location and send this signal to the air conditioner to optimize the temperature around you and ensure comfort. It will automatically deactivate 2 hours later.

Turbo Function

To activate turbo function, press the TURBO button, and the [TURBO Symbol] will appear on the display. Press again to cancel this function.

In COOL/HEAT mode, when you select the TURBO feature, the appliance will operate fast cooling/fast heating with the highest fan speed.

Generator Mode (Optional)

The air conditioner works in generator mode, which is helpful for unstable net power areas.

Through GEN mode, you can choose the current level of the unit. There are three levels (L1, L2, L3) in this mode, and the current increases in turn.

To activate GEN function, press the GEN button, and the unit current level will cycle as below: OFF → L3 → L2 → L1.

Running current (% of rated current): L1: 30%, L2: 50%, L3: 70%.

To cancel this function, press the GEN button until 'OF' appears on the display.

Sleep Mode

Pre-setting automatic operating program.

Press the SLEEP button and hold for 2s to activate the sleep mode, and the [SLEEP Symbol] appears on the display. Press and hold for 2s again to cancel this mode.

In sleep mode, the air conditioner will automatically adjust the temperature and fan speed to make the room more comfortable during the night. After 10 hours running in sleep mode, the air conditioner will change to the previous setting mode.

ECO Mode

In this mode, the appliance automatically sets the operation to save energy.

Press the ECO button, the [ECO Symbol] appears on the display, and the appliance will run in ECO mode. Press again to cancel it.

Note: The ECO function is available in both COOLING and HEATING modes.

LED Display Light ON/OFF

Press the DISPLAY button and hold for 2s to turn on/off the indoor LED display light.

HEALTH Function (Optional)

Press the HEALTH button to activate/exit the health functions such as ion generator/plasma, etc.

Note: Health function is not available when the air conditioner is off.

SELF-CLEAN Function (Optional)

1. This function helps carry away accumulated dirt, bacteria, etc. from the evaporator.
2. Turn off the air conditioner, press the "CLEAN" button to enter this function, and it will show "CL" on the display of the indoor unit.
3. This function will run for about 30 minutes and will exit automatically. You will hear 2 beeps when it's finished or cancelled.
4. It's normal if there is some noise during this function process, as plastic materials expand with heat and contract with cold.
5. We suggest operating this function under the following ambient conditions to avoid certain safety protection features:
   Indoor unit: Temp < 30°C
   Outdoor unit: 5°C < Temp < 30°C
6. We suggest operating this function once every 3 months.

TIMER Mode—Set Timer OFF

To set the air conditioner switching-off automatically.

With the AC on, press the Timer button and then use the ∧ and ∨ buttons to set the length of time before the AC will turn off. Press the timer button again to start the countdown.

Note: To cancel the set function, press the TIMER button again. Note: In case of power off, it is necessary to set TIMER OFF again.

TIMER Mode—Set Timer ON

To set the air conditioner switching-on automatically.

With the AC off, press the Timer button and use the ∧ and ∨ buttons to set the desired amount of time before the AC turns on. Press the timer button again to start the countdown.

When the timer setting is done, you can set the operation mode, fan speed, desired temperature, and air flow when the air conditioner starts to run.

Note: To cancel the timer function, press the TIMER button again. Note: In case of power off, it is necessary to set TIMER ON again.

CHILL WIND/ HOT WIND Function (Optional)

1. In cooling mode, press both TIMER/SLEEP and ECO/DISPLAY buttons and hold for 2s to activate the chill wind function.
2. In heating mode, press both TIMER/SLEEP and ECO/DISPLAY buttons and hold for 2s to activate the hot wind function.
3. Press both TIMER/SLEEP and ECO/DISPLAY buttons and hold for 2s to exit the chill wind or hot wind function.

8°C Heating Function (Optional)

1. Press both ECO/DISPLAY and HEALTH/CLEAN buttons and hold for 2s to activate the 8°C heating.

2. If the air conditioner is standby, this function enables the air conditioner to automatically start heating when the indoor temperature is equal to or lower than 8°C. It will return to standby if the temperature is equal to or higher than 18°C.

3. When the AC is turned off, press both ECO/DISPLAY and HEALTH/CLEAN buttons and hold for 2s to exit the 8°C heating.

I SET Function (Optional)

In each mode of COOLING/HEATING/FAN/DRY, adjust the temperature (COOLING/HEATING), fan speed (COOLING/HEATING/FAN), and swing as your favorite. Then, keep pressing the "I SET" button for over 3 seconds until "AU" appears on the display and the background of the display changes to lighting. The remote controller will run and remember these settings. You can reset it by repeating the above operation.

In each mode of COOLING/HEATING/FAN/DRY, press the "I SET" button to activate this function. The AC will run as your favorite setting, and you will see "AU" flashing on the remote controller. Press it again or other buttons to cancel this function.

Operating Temperature

The air conditioner is programmed for comfortable and suitable living conditions as below. If used outside these conditions, certain safety protection features might come into effect.

Fix Air Conditioner:

Inverter Air Conditioner:

Note: The unit does not operate immediately if it is turned on after being turned off or after changing the mode during operation. This is a normal self-protection action; you need to wait for about 3 minutes.

Note: The capacity and efficiency are according to the test conducted at full-load operation (The highest speed of indoor fan motor and the maximum open angle of the flaps and deflectors are requested.)

Installation Manual

Important Considerations for R32/R290

Special Tools

Installation Safety Principles

1. Site Safety: [No Open Flames Symbol], [Ventilation Symbol]
2. Operation Safety: [No Open Flames Symbol], [Static Electricity Symbol], [Mobile Phone Symbol]
3. Installation Safety: Refrigerant Leak Detector, Appropriate Installation Location. (Diagram of a refrigerant leak detector)

Please note that:

• The installation site should be in a well-ventilated condition.
• The sites for installing and maintaining an air conditioner using Refrigerant R290 should be free from open fire or welding, smoking, drying oven, or any other heat source higher than 370°C which easily produces open fire; the sites for installing and maintaining an air conditioner using Refrigerant R32 should be free from open fire or welding, smoking, drying oven, or any other heat source higher than 548°C which easily produces open fire.
• When installing an air conditioner, it is necessary to take appropriate anti-static measures, such as wearing anti-static clothing and/or gloves.
• It is necessary to choose the site convenient for installation or maintenance wherein the air inlets and outlets of the indoor and outdoor units should not be obstructed or close to any heat source or combustible and/or explosive environment.
• If the indoor unit suffers refrigerant leak during installation, it is necessary to immediately turn off the valve of the outdoor unit, and all personnel should go out until the refrigerant leaks completely for 15 minutes. If the product is damaged, it is a must to carry such damaged product back to the maintenance station and it is prohibited to weld the refrigerant pipe or conduct other operations on the user's site.
• It is necessary to choose the place where the inlet and outlet air of the indoor unit is even.
• It is necessary to avoid the places where there are other electrical products, power switch plugs and sockets, kitchen cabinets, beds, sofas, and other valuables right under the lines on two sides of the indoor unit.

Selecting the Installation Place

Indoor Unit

• Install the indoor unit on a strong wall that is not subject to vibrations.
• The inlet and outlet ports should not be obstructed; the air should be able to blow all over the room.
• Do not install the unit near a source of heat, steam, or flammable gas.
• Do not install the unit where it will be exposed to direct sunlight.
• Select a site where the condensed water can be easily drained out, and where it is easily connected to the outdoor unit.
• Check the machine operation regularly and reserve the necessary spaces as shown in the picture.
• Select a place where the filter can be easily taken out.

(Diagram showing indoor unit mounting plate and clearances)

Outdoor Unit

• Do not install the outdoor unit near sources of heat, steam, or flammable gas.
• Do not install the unit in too windy or dusty places.
• Do not install the unit where people often pass. Select a place where the air discharge and operating sound will not disturb the neighbours.
• Avoid installing the unit where it will be exposed to direct sunlight (otherwise, use protection if necessary, that should not interfere with the air flow).
• Reserve the spaces as shown in the picture for the air to circulate freely.
• Install the outdoor unit in a safe and solid place.
• If the outdoor unit is subject to vibration, place rubber gaskets onto the feet of the unit.

(Diagram showing outdoor unit installation clearances)

Note: The purchaser must ensure that the person and/or company who is to install, maintain, or repair this air conditioner has qualifications and experience in refrigerant products.

Installation of the Indoor Unit

Before starting installation, decide on the position of the indoor and outdoor units, taking into account the minimum space reserved around the units.

• Do not install your air conditioner in a wet room such as a bathroom or laundry, etc.
• The installation site should be 250cm or more above the floor.

Installation of the mounting plate

1. Always mount the rear panel horizontally and vertically.
2. Drill 32 mm deep holes in the wall to fix the plate.
3. Insert the plastic anchors into the holes.
4. Fix the rear panel on the wall with provided tapping screws.
5. Be sure that the rear panel has been fixed firmly enough to withstand the weight.

Note: The shape of the mounting plate may be different from the one above, but the installation method is similar.

Drilling a hole in the wall for the piping

1. Make the piping hole (∅65) in the wall at a slight downward slant to the outdoor side.
2. Insert the piping-hole sleeve into the hole to prevent the connection piping and wiring from being damaged when passing through the hole.

The hole must slope downwards towards the exterior. Note: Keep the drain pipe down towards the direction of the wall hole, otherwise leakage may occur.

Electrical connections—Indoor unit

1. Open the front panel.
2. Take off the cover as indicated in the picture (by removing a screw or breaking the hooks).
3. For the electrical connections, see the circuit diagram on the right part of the unit under the front panel.
4. Connect the cable wires to the screw terminals by following the numbering. Use wire size suitable to the electric power input (see name plate on the unit) and according to all current national safety code requirements.

The cable connecting the outdoor and indoor units must be suitable for outdoor use. The plug must be accessible also after the appliance has been installed so that it can be pulled out if necessary. An efficient earth connection must be ensured. If the power cable is damaged, it must be replaced by an authorized Service Centre. Note: Optional wires can be connected to the main PCB of the indoor unit by the manufacturer according to the model without a terminal block.

(Diagrams showing indoor unit electrical connections and piping hole)

Refrigerant piping connection

The piping can be run in the 3 directions indicated by numbers in the picture. When the piping is run in direction 1 or 3, cut a notch along the groove on the side of the indoor unit with a cutter.

Run the piping in the direction of the wall hole and bind the copper pipes, the drain pipe, and the power cables together with tape, with the drain pipe at the bottom, so that water can flow freely.

• Do not remove the cap from the pipe until connecting it, to avoid dampness or dirt from entering.
• If the pipe is bent or pulled too often, it will become stiff. Do not bend the pipe more than three times at one point.
• When extending the rolled pipe, straighten the pipe by unwinding it gently as shown in the picture.

(Diagrams showing pipe connection and extending a rolled pipe)

Connections to the indoor unit

1. Remove the indoor unit pipe cap (check that there is no debris inside).
2. Insert the flare nut and create a flange at the extreme end of the connection pipe.
3. Tighten the connections by using two wrenches working in opposite directions.
4. For R32/R290 refrigerants, mechanical connectors should be outdoors.

Indoor unit condensed water drainage

The indoor unit condensed water drainage is fundamental for the success of the installation.

1. Place the drain hose below the piping, taking care not to create siphons.
2. The drain hose must slant downwards to aid drainage.
3. Do not bend the drain hose or leave it protruding or twisted, and do not put the end of it in water. If an extension is connected to the drain hose, ensure that it is lagged when it passes into the indoor unit.
4. If the piping is installed to the right, the pipes, power cable, and drain hose must be lagged and secured onto the rear of the unit with a pipe connection.
   1) Insert the pipe connection into the relative slot.
   2) Press to join the pipe connection to the base.

Installation of the Indoor Unit (Continued)

After having connected the pipes according to the instructions, install the connection cables. Now install the drain pipe. After connection, lag the pipes, cables, and drain pipe with the insulating material.

1. Arrange the pipes, cables, and drain hose well.
2. Lag the pipe joints with insulating material, securing it with vinyl tape.
3. Run the bound pipe, cables, and drain pipe through the wall hole and mount the indoor unit onto the upper part of the mounting plate securely.
4. Press and push the lower part of the indoor unit tightly against the mounting plate.

(Diagram showing indoor unit installation with insulating material)

Sometimes, if the refrigerant piping is already embedded in the wall, or if you want to connect the piping and wiring on the wall, do as below:

1. Grab both ends of the bottom plate, apply a little outward force to take off the bottom plate.
2. Hook the top of the indoor unit on the mounting plate without piping and wiring.
3. Lift the indoor unit opposite the wall, unfold the bracket on the mounting plate, and use this bracket to prop up the indoor unit; there will be a big space for operation.
4. Do the refrigerant piping, wiring, connect drainage hose, and wrap them as Step 4 to 7.
5. Replace the bracket of mounting plate.
6. Push down the bottom of the indoor unit to let the snaps onto the bottom hooks of the mounting plate, and make sure it is hooked firmly.
7. Replace the bottom plate of the indoor unit.

(Diagrams showing bottom plate removal and bracket unfolding)

Installation of the Outdoor Unit

• The outdoor unit should be installed on a solid wall and fastened securely.
• The following procedure must be observed before connecting the pipes and connecting cables: decide which is the best position on the wall and leave enough space to be able to carry out maintenance easily.
• Fasten the support to the wall using screw anchors which are particularly suited to the type of wall.
• Use a larger quantity of screw anchors than normally required for the weight they have to bear to avoid vibration during operation and remain fastened in the same position for years without the screws becoming loose.
• The unit must be installed following the national regulations.
• The outdoor unit should be installed on a solid wall and fastened securely, or on the ground on a flat/level surface like a concrete slab. The bolt size is M8*80mm.

Outdoor unit condensed water drainage (only for heat pump models)

The condensed water and the ice formed in the outdoor unit during heating operation can be drained away through the drain pipe.

1. Fasten the drain port in the 25mm hole placed in the part of the unit as shown in the picture.
2. Connect the drain port and the drain pipe. Pay attention that water is drained in a suitable place.

(Diagram showing outdoor unit drain port and pipe)

ELECTRICAL CONNECTIONS

1. Remove the handle on the right side plate of the outdoor unit.
2. Connect the power connection cord to the terminal board. Wiring should fit that of the indoor unit.
3. Fix the power connection cord with a wire clamp.
4. Confirm if the wire has been fixed properly.
5. An efficient earth connection must be ensured.
6. Recover the handle.
7. The appliance must be fitted with means for disconnection from the supply mains having a contact separation in all poles that provide full disconnection under overvoltage category III conditions, and these means must be incorporated in the fixed wiring in accordance with the wiring rules.

(Diagram showing outdoor unit wiring connections)

CONNECTING THE PIPES

Screw the flare nuts to the outdoor unit coupling with the same tightening procedures described for the indoor unit.

To avoid leakage, pay attention to the following points:

1. Tighten the flare nuts using two wrenches. Pay attention not to damage the pipes.
2. If the tightening torque is not sufficient, there will probably be some leakage. With excessive tightening torque, there will also be some leakage, as the flange could be damaged.
3. The surest system consists in tightening the connection by using a fix wrench and a torque wrench as below:

(Diagrams showing pipe connections and torque specifications)

Air Vacuumizing

1. Use a spanner to take down the protective caps from the service port, low pressure valve, and high pressure valve of the outdoor unit.
2. Connect the pressure hose of the manifold gauge to the service port on the outdoor unit low pressure valve.
3. Connect the charge hose from the manifold gauge to the vacuum pump.
4. Open the low pressure valve of the manifold gauge and close the high pressure valve.
5. Turn on the vacuum pump to vacuumize the system.
6. The vacuuming time should not be less than 15 minutes, or make sure the compound gauge indicates -0.1 MPa (-76 cmHg).
7. Close the low pressure valve of the manifold gauge and turn off the vacuum.
8. Hold the pressure for 5 minutes, make sure that the rebound of the compound gauge pointer does not exceed 0.005 Mpa.
9. Turn the low pressure valve counterclockwise for 1/4 turn with a hexagonal wrench to let a little refrigerant fill in the system, and close the low pressure valve after 5 seconds. Quickly remove the pressure hose.
10. Check all indoor and outdoor joints for leakage with soapy water or a leak detector.
11. Fully open the low pressure valve and high pressure valve of the outdoor unit with a hexagonal wrench.
12. Replace the protective caps of the service port, low pressure valve, and high pressure valve of the outdoor unit.
13. Replace the valve cover.

(Diagram showing vacuum pump connection)

Refrigerant Pressure Inspection

Air-returning Low-pressure Range of Refrigerant R290: 0.4-0.6 Mpa; Air-exhausting High-pressure Range: 1.5-2.0 Mpa.

Air-returning Low-pressure Range of Refrigerant R32: 0.8-1.2 Mpa; Air-exhausting High-pressure Range: 3.2-3.7 Mpa.

It means that the refrigerating system or refrigerant of an air conditioner is abnormal if the air-exhausting and air-returning pressure ranges of the detected compressor exceed the normal ranges to a large extent.

(Diagram of manifold gauge with pressure readings)

BLEEDING

The air and humidity left inside the refrigerant circulation can cause compressor malfunction. After having connected the indoor and outdoor units, bleed the air and humidity from the refrigerant circulation using a vacuum pump.

1. Unscrew and remove the caps from the 2-way and 3-way valves.
2. Unscrew and remove the cap from the service port.
3. Connect the vacuum pump hose to the service port.
4. Operate the vacuum pump for 10-15 minutes until an absolute vacuum of 10 mm Hg has been reached.
5. With the vacuum pump still in operation, close the low-pressure knob on the vacuum pump coupling. Stop the vacuum pump.
6. Open the 2-way valve by 1/4 turn and then close it after 10 seconds. Check all the joints for leaks using liquid soap or an electronic leak device.
7. Turn the body of the 2-way and 3-way valves. Disconnect the vacuum pump hose.
8. Replace and tighten all the caps on the valves.

(Diagrams showing 3-way valve and refrigerant flow direction)

INSTALLATION MANUAL — Operation Test

1. Wind insulating covering around the joints of the indoor unit and fix it with insulating tape.
2. Fix the exceeding part of the signal cable to the piping or to the outdoor unit.
3. Fix the piping to the wall (after having coated it with insulating tape) using clamps or insert them into plastic slots.
4. Seal the hole in the wall through which the piping is passed so that no air or water can fill.

Indoor unit test

• Do the ON/OFF and FAN operate normally?
• Does the MODE operate normally?
• Do the set point and TIMER function properly?
• Does each lamp light normally?
• Do the flap for air flow direction operate normally?
• Is the condensed water drained regularly?

Outdoor unit test

• Is there any abnormal noise or vibration during operation?
• Could the noise, the air flow, or the condensed water drainage disturb the neighbours?
• Is there any coolant leakage?

Note: The electronic controller allows the compressor to start only three minutes after voltage has reached the system.

Pipe length and Additional refrigerant

(Diagrams showing piping configurations for multi-split systems)

Note: When the matching indoor unit model is TAC-18CHSD/TPH11-l or TAC-24CHSD/TPH11-l, the connecting pipe needs to be connected with the pipe adapter placed in the carton of the multi outdoor unit.

Dedicated Distribution Device and Wire for Air Conditioner

Note: This table is only for reference; the installation shall meet the requirements of local laws and regulations.

WIRING DIAGRAM

For different models, the wiring diagram may be different. Please refer to the wiring diagrams pasted on the indoor unit and outdoor unit respectively. On the indoor unit, the wiring diagram is pasted under the front panel.

(Diagram showing indoor unit wiring diagram)

Outdoor wiring diagram:

(Diagrams showing outdoor unit wiring for FMA-3614HD/DVO and FMA-4215HD/DVO)

Note: For some models, the wires have been connected to the main PCB of the indoor unit by the manufacturer without a terminal block.

CABLE WIRES SPECIFICATION

220V Air conditioner (7k~30k) indoor unit fuse: 50T, 3.15A
110V Air conditioner (7k~12k) indoor unit fuse: 50T, 3.15A
125V Air conditioner (7k~12k) indoor unit fuse: 61T, 15A
250V Air conditioner (18k~24k) indoor unit fuse: 65TS, 25A

Maintenance

Warning:

• When cleaning, you must shut down the machine and cut off the power supply for more than 5 minutes.
• Under no circumstances should the air conditioner be flushed with water.
• Volatile liquid (e.g., thinner or gasoline) will damage the air conditioner, so only use a soft dry cloth or wet cloth dipped with neutral detergent to clean the air conditioner.
• Pay attention to cleaning the filter screen regularly to avoid dust covering, which will affect the filter screen effect. When the operating environment is dusty, the cleaning frequency should be increased appropriately.
• After removing the filter screen, do not touch the fins of the indoor unit to avoid scratching.

Clean the unit

(Diagrams showing cleaning steps: wipe it dry, gentle wipe the unit surface)

Tip: Wipe frequently to keep the air conditioner clean and looking good.

Disassembly and assembly of filter screen

• Grasp the raised plastic handle on the filter screen by hand, and then pull the filter screen out in the direction deviating from the unit, so that the upper edge of the filter screen is separated from the unit. The filter can be removed by lifting the filter upwards.
• When installing the filter screen, first insert the lower end of the filter screen into the corresponding position of the unit, and then squeeze the upper end of the filter screen into the corresponding buckling position of the unit body.

(Diagrams showing filter screen removal and installation)

Clean the filter screen

• Take out the filter screen from the unit.
• Clean the filter screen with soapy water and air dry it.

(Diagram showing cleaning the filter screen)

Tip: When you find accumulated dust in the filter screen, please clean the filter screen in time to ensure the clean, healthy, and efficient operation inside the air conditioner.

Cleaning of inner air duct

1. First, loosen the knob on the middle of the louver and bend the louver outwards to take it out.
2. Then, grasp both sides of the bottom plate and push downwards to take down the bottom plate.
3. Loosen the buckle of the deflector assembly with your thumb and take it out.
4. Wipe the air duct and fan assembly with a clean and wrung wet rag.
5. Clean the removed parts with soapy water and air dry it.
6. After cleaning, restore the removed parts in turn.

(Diagrams showing louver, deflector assembly, and bottom plate removal)

Service and maintenance

When the air conditioner is not in use for a long time, do the following work:

• Take out the batteries of the remote controller and disconnect the power supply of the air conditioner.
• When starting to use after long-term shutdown:
  1. Clean the unit and filter screen;
  2. Check whether there are obstacles at the air inlet and outlet of indoor and outdoor units;
  3. Check whether the drain pipe is unobstructed;
  Install the batteries of the remote controller and check whether the power is on.

Troubleshooting

ERROR SIGNALS ON THE DISPLAY

In case of error, the display on the indoor unit shows the following error codes: