TCL TCD125D1HWH-DV (01) PDF Document

No, the TCD Series, including the TCL TCD125D1HWH-DV, cannot be installed underfloor. This is a ceiling concealed duct type unit.

Before the first use of your TCL TCD125D1HWH-DV air conditioner, follow these steps:

1. Carefully read the operation manual supplied with your controller.

2. Ask your installer to show you the location of the main power switch for the system, which is usually near the outdoor unit or in the fuse box/switchboard.

3. The main power switch must be turned on at least 6 hours before operating the air conditioner to warm up the compressor. Failure to do so may damage the compressor and will not be covered by warranty.

4. Ensure there are no obstacles like plants, boxes, or fences near the air outlet of the outdoor unit, as they can reduce performance and increase noise.

5. Check that the air filter is installed in the return air grille.

6. If applicable, have your installer verify the minimum number or combinations of zones required to be operating before starting the unit.

For the TCL TCD125D1HWH-DV to operate as normal, the temperature and humidity should be within the following ranges. Safety devices will still function outside these ranges, but performance may be affected.

DB: Dry bulb temperature

To ensure your TCL TCD125D1HWH-DV operates efficiently, observe the following precautions:

• Adjust the room temperature to a comfortable level, avoiding excessive heating or cooling.

• Prevent direct sunlight from entering the room during cooling by using curtains or blinds.

• Keep doors and windows closed to prevent conditioned air from flowing out.

• Do not place objects near the air inlet or outlet of the unit, as this can affect performance.

• When not using the unit for long periods, turn off the main power supply switch to save energy. Remember to turn the main power switch back on 6 hours before you intend to use the unit again.

• Ventilate the room regularly, especially if the unit has been running for a long time.

• **A continuous low “shuh” sound:** This is normal during COOLING or DEFROST operation. It is the sound of refrigerant gas flowing through the indoor and outdoor units.

• **A “shuh” sound at the start or stop of operation:** This is the noise of the refrigerant stopping or changing direction and is also normal.

Dust: Dust may blow out from the unit when you first start it after a long period of not being used. This is simply dust that has settled in the unit being blown out.

Odors: The unit can absorb smells from the room, such as from furniture, cigarettes, etc., and then emit them. Regular ventilation of the room is recommended.

• **The system does not start immediately:** After turning on the power supply, wait one minute for the microcomputer to prepare for operation.

• **The outdoor unit is stopped:** This happens when the room temperature has reached the set temperature. The indoor unit will switch to fan-only operation.

• **White mist comes out of the outdoor unit:** When the system reverts to HEATING operation after a DEFROST cycle, moisture generated by the defrost process becomes steam and is discharged. This is normal.

• **The wired controller display shows “88”:** This happens for a short time immediately after the main power supply is turned on and indicates that the controller is in a normal condition.

Regularly cleaning the air filter is crucial for performance. Before cleaning, always stop the operation and turn off the main power switch.

• It is important to clean the air filter(s) before use at the beginning of summer and winter.

• In dusty locations, more frequent cleaning is required, with a recommendation of once every 2 weeks.

• The air filter(s) and suction grille(s) are supplied by your dealer. Please ask your dealer for specific instructions on how to clean them.

• After cleaning the filter, make sure to reattach it correctly.

Important: Never operate the air conditioner without the return air filter in place, as this can cause malfunctions not covered by warranty.

When stopping the system for a long period:

1. To dry the unit, turn on FAN OPERATION for half a day.

2. Cut off the power supply at the main power switch to save energy.

When starting up after a long stop:

1. Check that the air inlet and outlet are not blocked and remove any obstacles.

2. Clean the air filter(s) and reattach them.

3. Turn on the main power supply switch at least 6 hours before you plan to operate the unit. This is to protect the compressor.

If you experience any of the following, take the recommended measures. The system must be repaired by a qualified service person.

• **If the unit operates abnormally (e.g., smell of something burning):** Immediately switch off the main power switch and contact your TCL dealer or appointed maintenance center. Continued operation can result in failure, electric shock, or fire.

• **If a safety device (fuse, circuit breaker) frequently activates:** Turn off the main power switch and contact a qualified technician.

• **If water leaks from the indoor unit (from a location other than the drain pipe):** Stop the operation and contact your dealer.

• **If a 2-digit fault code appears on the LCD screen:** Write down the fault code, switch off the unit, and contact your installer or dealer. The code will help them identify the problem.

If the system isn’t working correctly and none of the major malfunctions are evident, check the following:

1. If the system does not operate at all:

• Check for a power failure. The system may restart automatically when power is restored.

• Check if a fuse has blown or a circuit breaker has tripped. Please contact a qualified technician to check.

2. If the system stops after operating for a while:

• Check if the air inlet or outlet of the indoor or outdoor unit is blocked by obstacles. Remove them to ensure good ventilation.

• Check if the air filter is clogged. Clean the filter(s) as needed.

3. If the system operates but does not cool or heat sufficiently:

• Check for blocked air inlets or outlets on both indoor and outdoor units.

• Clean the air filter(s) if they are clogged.

• Check if the set temperature is in a comfortable range.

• Check if the Fan Speed is set to high. If you normally use low fan speed, ensure the filter is very clean.

• Check if doors or windows are open.

• During cooling, check if direct sunlight is entering the room, if there are too many occupants, or if there is another significant heat source in the room.

Observe the following important safety precautions to prevent injury or damage:

Installation and Maintenance:

• Only use a qualified installer for installation, repairs, improvements, and maintenance. Incorrect work can lead to water leakage, electric shock, or fire.

• Use only designated component parts. Self-installation of parts can be hazardous.

• Regularly check the foundation blocks of the outdoor unit. If damaged, the unit could fall and cause injury.

Electrical Safety:

• To clean the unit, stop operation and turn off the main power switch to prevent electric shock.

• Do not remove any fixed covers. You may be exposed to fast-moving fan blades or hazardous voltages.

• Always replace a blown fuse with one of the same specification to prevent fire.

• Do not wash the unit with water or expose the indoor unit or controller to rain or moisture.

Fire and Chemical Safety:

• Do not place or use flammable spray cans near the air conditioner.

• Do not install the unit in an area where flammable gas may be present.

• This product contains R32 refrigerant. Do not charge R32 into systems not designated for it, use incorrect oil, use a non-R32 reclaim cylinder, or install unspecified pipe work.

General Use:

• Avoid prolonged direct exposure to cold air, as it can deteriorate your physical condition.

• Do not insert any objects into the openings of the indoor or outdoor units.

• When used with burners or heaters, ensure sufficient room ventilation to prevent oxygen deficiency.

• Do not use the air conditioner for special purposes like storing food, animals, or art, as quality may deteriorate.