TCL TCD71D1HWH-DV (02) PDF Document

Failure to observe these warnings may result in death, injury, or damage to the equipment.

• Ask your Dealer or qualified personnel to carry out installation work. Do not try to install the machine yourself. Improper installation may result in water leakage, electric shock, or fire.

• Perform installation work in accordance with this installation manual. Improper installation may result in water leakage, electrical shock, or fire.

• Be sure to use only the specified accessories and parts for installation work. Failure to use the specified parts may result in water leakage, electric shock, fire, or the unit failing.

• Install the air conditioner on a structure strong enough to withstand the weight of the unit. A structure of insufficient strength may result in the equipment falling and causing injuries.

• Carry out the specified installation work after taking into account strong winds, typhoons, or earthquakes. Improper installation work may result in the equipment falling and causing accidents.

• Make sure that a separate power supply circuit is provided for this unit and that all electrical work is carried out by qualified personnel according to local laws, regulations, and this installation manual. An insufficient power supply capacity or improper electrical construction may lead to electric shocks or fire.

• Make sure that all wiring is secured, the specified wires are used, and no external forces act on the terminal connection or wires. Improper connections or installation may result in fire.

• When wiring the power supply and connecting the wiring between the indoor and outdoor units, position the wires so that the switch box cover can be securely fastened. Improper positioning of the switch box cover may result in electric shock, fire, or the terminals overheating.

• If the refrigerant gas leaks during installation, ventilate the area immediately.

• After completing the installation work, check that the refrigerant gas does not leak. Fire may happen if leaked refrigerant is in contact with an ignition source.

• Before obtaining access to the terminals and electrical parts, all supply circuits must be disconnected.

• Do not install the indoor unit or remote controller where they may be exposed to rain or moisture. Water or other fluids on the electrical components may result in fire or electric shock.

• Grounding is necessary. Earth the air conditioner. Do not connect the earth wire to gas or water pipes, a lightning conductor, or a telephone ground wire. Improper earthing may result in electric shock.

• Be sure to install an earth leakage breaker. Failure to install an earth leakage breaker may result in electric shock.

Failure to observe a caution may result in injury or damage to the equipment.

• Do not install the indoor unit or wired controller where flammable gases may leak, where there are carbon fibred or ignitable dust suspended in the air, or where volatile flammables such as thinner or gasoline are handled.

• Do not install the indoor unit or wired controller where the area is filled with steam or the ground is always wet. Insulation of the electric components may be damaged in such conditions and may result in electric shock.

• Be sure to only use refrigerant piping approved for use with R32 refrigerant. The use of unapproved piping may result in explosive rupture.

• When carrying out piping connection, take care not to let air or other substances other than the specified refrigerant go into the refrigeration cycle. Otherwise, it will cause lower capacity, abnormal high pressure in the refrigeration cycle, explosion, and injury.

• The appliance is not to be used 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.

• Children being supervised not to play with the appliance.

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

• This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction.

• Children shall not play with the appliance.

• Cleaning and user maintenance shall not be made by children without supervision.

1. Check the information in this manual to find out the dimensions of space needed for proper installation of the device, including the minimum distances allowed compared to adjacent structures.

2. The appliance shall be installed, operated, and stored in a room with a floor area larger than 4m².

3. The installation of pipe-work shall be kept to a minimum.

4. The pipe-work shall be protected from physical damage and shall not be installed in an unventilated space if the space is smaller than 4m².

5. Compliance with national gas regulations shall be observed.

6. Mechanical connections shall be accessible for maintenance purposes.

7. Follow the instructions given in this manual for handling, installing, cleaning, maintaining, and disposing of the refrigerant.

8. Make sure ventilation openings are clear of obstruction.

9. Notice: Servicing shall be performed only as recommended by the manufacturer.

10. Warning: The appliance shall be stored in a well-ventilated area where the room size corresponds to the room area as specified for operation.

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

12. The appliance shall be stored so as to prevent mechanical damage from occurring.

13. It is appropriate that anyone who is called upon to work on a refrigerant circuit should hold a valid and up-to-date certificate from an assessment authority accredited by the industry and recognizing their competence to handle refrigerants, in accordance with the assessment specification recognized in the industrial sector concerned. Service operations should only be carried out in accordance with the recommendations of the equipment manufacturer. Maintenance and repair operations that require the assistance of other qualified persons must be conducted under the supervision of the person competent for the use of flammable refrigerants.

14. Every working procedure that affects safety means shall only be carried out by competent persons.

15. Warning:

1) Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.

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

3) Do not pierce or burn.

4) Be aware that refrigerants may not contain an odor.

1. Prior to beginning work on systems containing flammable refrigerants, safety checks are necessary to ensure that the risk of ignition is minimized. For repair to the refrigerating system, the following precautions shall be complied with prior to conducting work on the system.

2. **Work procedure:** Work shall be undertaken under a controlled procedure so as to minimize the risk of a flammable gas or vapor being present while the work is being performed.

3. **General work area:** All maintenance staff and others working in the local area shall be instructed on the nature of work being carried out. Work in confined spaces shall be avoided. The area around the workspace shall be sectioned off. Ensure that the conditions within the area have been made safe by control of flammable material.

4. **Checking for presence of refrigerant:** The area shall be checked with an appropriate refrigerant detector prior to and during work, to ensure the technician is aware of potentially flammable atmospheres. Ensure that the leak detection equipment being used is suitable for use with flammable refrigerants, i.e., non-sparking, adequately sealed, or intrinsically safe.

5. **Presence of fire extinguisher:** If any hot work is to be conducted on the refrigeration equipment or any associated parts, appropriate fire extinguishing equipment shall be available to hand. Have a dry powder or CO2 fire extinguisher adjacent to the charging area.

6. **No ignition sources:** No person carrying out work in relation to a refrigeration system which involves exposing any pipe work shall use any sources of ignition in such a manner that it may lead to the risk of fire or explosion. All possible ignition sources, including cigarette smoking, should be kept sufficiently far away from the site of installation, repairing, removing, and disposal, during which refrigerant can possibly be released to the surrounding space. Prior to work taking place, the area around the equipment is to be surveyed to make sure that there are no flammable hazards or ignition risks. No Smoking signs shall be displayed.

7. **Ventilated area:** Ensure that the area is in the open or that it is adequately ventilated before breaking into the system or conducting any hot work. A degree of ventilation shall continue during the period that the work is carried out. The ventilation should safely disperse any released refrigerant and preferably expel it externally into the atmosphere.

Checks to the refrigeration equipment:

Where electrical components are being changed, they shall be fit for the purpose and to the correct specification. At all times the manufacturer’s maintenance and service guidelines shall be followed. If in doubt, consult the manufacturer’s technical department for assistance.

The following checks shall be applied to installations using flammable refrigerants:

• The charge size is in accordance with the room size within which the refrigerant-containing parts are installed.

• The ventilation machinery and outlets are operating adequately and are not obstructed.

• If an indirect refrigerating circuit is being used, the secondary circuit shall be checked for the presence of refrigerant.

• Marking on the equipment continues to be visible and legible. Markings and signs that are illegible shall be corrected.

• Refrigeration pipe or components are installed in a position where they are unlikely to be exposed to any substance which may corrode refrigerant-containing components unless the components are constructed of materials which are inherently resistant to being corroded or are suitably protected against being so corroded.

Checks to electrical devices:

Repair and maintenance to electrical components shall include initial safety checks and component inspection procedures. If a fault exists that could compromise safety, then no electrical supply shall be connected to the circuit until it is satisfactorily dealt with. If the fault cannot be corrected immediately but it is necessary to continue operation, an adequate temporary solution shall be used. This shall be reported to the owner of the equipment so all parties are advised.

Initial safety checks shall include:

• That capacitors are discharged: this shall be done in a safe manner to avoid the possibility of sparking.

• That there are no live electrical components and wiring exposed while charging, recovering, or purging the system.

• That there is continuity of earth bonding.

The construction area for installation, operation, and storage of the TCL TCD71D1HWH-DV must be larger than the minimum construction area. The minimum area is determined by the total refrigerant charging quantity (ex-factory quantity + additional charging quantity). Refer to the following tables to check the minimum construction area for your unit type.

Ceiling type

INDOOR UNITS

1. A place where there is sufficient space for repair and a hung ceiling that can bear the weight of the machine.

2. A place where the air inlet and outlet are not hindered and are without influence from outdoor air.

3. A place without heat sources like smoke, fire, or toxic pollution.

4. A place where air flow can be transmitted everywhere in the room.

5. A place convenient for installation.

OUTDOOR UNITS

1. A place where there is sufficient space for installation and repair.

2. A place where the air inlet and outlet are not hindered, without strong air flowing.

3. A dry and ventilated place.

4. A place where the overhanging is level and can bear the weight of the outdoor unit, without much noise.

5. A place where neighbours are not annoyed by noise and exhausted air.

6. A place without leakage of flammable gas.

7. A place convenient for installation.

Location in the following places may cause malfunction of the machine:

1. A place where there is flammable gas leakage.

2. There is salty air surrounding (near the coast).

3. There is caustic gas (the sulfide, for example) existing in the air.

4. A place that cannot bear the weight of the machine.

5. In a kitchen where it is full of oil gas.

6. There is a strong electromagnetic wave existing.

7. There is acid or alkaline liquid evaporating.

8. A place where air circulation is not enough.

9. Other special surroundings.

The following accessories are included with your unit. Check that all are present before installation.

Take special care during construction and check the following items after installation is finished.

Also, check the following items at completion:

• Did you show the customer how to operate the system while referring to the operation manual? Detailed explanation about operation. Review the safety consideration.

• Did you hand the operation manual over to the customer?

Please tighten the nut and bolt to prevent the air conditioner from falling down. The unit might be loose if fixing the panel rack only. Be careful during installation.

1. Install the bolts to the ceiling at a place strong enough to hang the unit. Mark the bolt positions from the installation template. With a concrete drill for 12.7mm diameter holes.

2. Insert the anchor bolts into the drilled holes, and drive the pins completely into the anchor bolts with a hammer.

3. Install the hanger to the unit.

4. Pass the unit hangers over the bolts installed to the ceiling and install the unit with the special nut.

NOTE: The unit is purchased without a pump if the unit supports wall mounting. The distance between the mounted indoor unit should meet the specifications. The installation angle should not exceed 15 degrees.

1. With a concrete drill, drill two 10mm diameter holes at the positions (A and B) on the wall. The distance L should be 1241mm.

2. Insert the anchor bolts into the drilled holes, and drive the pins completely into the anchor bolts with a hammer.

3. Install the unit to them with nuts, washers, and spring washers.

4. Be sure to arrange the drain hose so that it is leveled lower than the drain hose connecting port of the indoor unit.

ALL REFRIGERANT PIPING WORK MUST ONLY BE CARRIED OUT BY A QUALIFIED PERSON.

• Fully insulate the liquid and gas piping separately. Do not leave any gaps, otherwise a water leak may occur. (Seal any joints with glue or duct tape).

• When operating in the heating mode, the temperature of the gas piping can reach up to approximately 120°C so use insulation which has a suitable temperature rating.

• In cases where the temperature and humidity surrounding the refrigerant piping can exceed 30°C or RH80%, reinforce or use thicker pipe insulation (20mm or thicker). Otherwise condensation may form on the surface of the insulating material.

• Where additional refrigerant is required, be sure to use only R32. The use of other types of refrigerant could cause product malfunction, refrigerant leak, or explosion.

• Avoid introduction of air or other contaminants into the refrigerant piping. If any air, moisture, or other contaminant remains in the refrigerant piping after the completion of installation, the system will malfunction.

• Carry out sufficient ventilation if the refrigerant gas leaks during installation work.

• Be sure to use both a spanner and torque wrench together when connecting or disconnecting pipes to/from the unit.

• Use only a flaring block suitable for R32 tube.

• When connecting the flare nut, coat ether or ester oil only to the flare inner surface, and initially tighten by hand 3 to 4 turns before tightening firmly.

• Use the flare nuts included with the indoor unit.

• Over-tightening the flare nuts may cause the flare nuts or copper tube to fail and allow the refrigerant to leak.

Use the following specifications when tightening flare nuts. You must use a torque wrench, but if one is unavailable in an emergency, follow the alternative method.

Table 2: Tightening Torque

Not recommended but in case of an emergency:

If you must install the unit without a torque wrench, follow this method. As you keep tightening the flare nut with a spanner, there is a point where the tightening torque suddenly increases. From that position, further tighten the flare nut using the angle shown below. After the work is finished, make sure to check that there is no gas leak.

Table 3: Emergency Tightening Angle

WARNING: Install the drain pipe as shown and take measures against condensation. Improperly installed piping may result in water leaks and eventually wet furniture and belongings.

1. After the piping work is finished, check that the drainage flows smoothly by pouring approximately 1 Litre of water gradually into the drain tray and checking the drainage flow.

2. For units with a pump, the drain pipe outlet can be raised up to 600mm above the ceiling. Keep the horizontal pipe length and offset of the pipe within the limit shown in the manual (100 or less) to avoid overflow.

3. Route the pipes to ensure drainage can occur with no problems. Employ piping with either the same diameter or a larger diameter (nominal diameter 25mm, outside diameter 32mm) than that of the connecting pipe.

4. Keep the drain pipe short and sloping downward at a gradient of at least 1/100 to prevent air pockets from forming.

5. To prevent the drain pipe from sagging, secure the pipe every 1 to 1.5m.

6. Use the provided drain hose and clamp. Tighten the clamp firmly.

7. Insulate the drain hose inside the building.

8. As a safety measure, use a safety drain tray (field supplied) and drain separately.

9. Insulate the drain pipe using piping thermal insulation to prevent condensate dripping during humid conditions.

10. To ensure no excessive pressure is applied to the included drain hose, do not bend or twist it when installing.

Work Procedure:

• Make sure to insert the drain hose (the end mode of soft PVC) to the end of the step part of the drain socket.

• Attach the hose clamp to the drain hose around 10mm from the end, and fasten the screw with 5mm left to the nut.

• Do not apply adhesives on this end.

• Do not use acetone-based adhesives to connect to the drain socket.

1. Conduct a drain test after completion of the electrical work.

2. During the trial, make sure that drain flows properly through the piping and that no water leaks from connections.

3. In case of a new building, conduct the test before the ceiling is furnished.

4. Be sure to conduct this test even when the unit is installed in the heating season.

5. Test method:

• Remove the test cover.

• Fill the water pan with 2 liters of water by stow tube (prepare on site).

• Turn on the unit in COOLING mode. You will hear the drain pump work. Check whether the 60% water is discharged properly (a 1-minute lag is possible, depending on the length of the drain pipe). Check whether water leaks from the joints.

• Turn off the air conditioner, and put the cap back on.

Indoor Unit

Outdoor Unit

WARNING: Power should be disconnected and tagged off when performing the following procedure when the unit is already installed. Please separate the indoor unit only when necessary. Please disassemble and reassemble on a flat surface.

Separate the indoor unit in the following order:

1) Carefully remove the Airbox compartment by removing the (4) M6 bolts.

2) Carefully remove the (1) thermistor cables (R1T) from the clamp.

3) Wrap the thermistor cable and place it neatly into the rubber bush next to the fan deck.

4) Carefully disconnect the fan motor wiring from the base panel located underneath the reactor box.

5) Remove the (5) tapping screws located above the fan deck flange.

6) Remove (4) M6 bolts securing the fan deck to the base panel of the heat exchanger compartment.

7) Carefully separate the fan deck assembly from the base panel, taking care not to damage the fan motor wiring.

8) Carefully detach the fan deck.

Reassemble the fan deck and heat exchanger compartments in the following order:

9) Carefully place the fan deck back in position on the base panel.

10) Secure the fan deck onto the heat exchanger compartment with the (4) M6 bolts and (5) tapping screws for the top flange of the fan deck.

11) Place the (1) thermistor cable (R1T) back to the side of the fan deck and secure it with the thermistor clamp. (Please make sure that the tip of the thermistor is positioned horizontally opposite to the fan casing).

12) Reconnect the fan motor connector back to the connector of the base panel.

13) Carefully place the fan deck compartment with (4) M6 bolts, taking care not to damage the fan motor wiring.

1. **Remove the upper part of the wired controller:** Insert a slot screwdriver into the slots in the lower part of the wired controller (2 places), and remove the upper part. The PCB is mounted in the upper part, so be careful not to damage it.

2. **Fasten the back plate:**

• For exposed mounting, fasten the back plate on the wall with the 3 screws (M3.5×25) and plugs.

• To use an 86 switch box, use two M4×25 screws to install the back cover on the switch box, and use one M4×25 screw to fix it to the wall.

3. **Battery installation:** Put the battery into the installation site, making sure the positive side of the battery is in accordance with the positive side of the installation site.

4. **Wire with the indoor unit:** Notch the part for the wiring to pass through with nippers. Do not allow water to enter the wired control; use a trap and putty to seal the wires.

5. **Installation Diagram:** Connect the wire from the master control board of the indoor unit to a connecting cable. Then connect the other side of the connecting cable to the wired controller.

6. **Reattach the upper part of the wire controller:** After adjusting the upper case, buckle it; avoid clamping the wiring during installation.

• [ON/OFF] button: Press to control the power on and off of the air conditioner.

• [MODE] button: Press to change the running modes cyclically: AUTO -> COOL -> DRY -> FAN -> HEAT.

• [∧ / ∨] button: Press ‘∨’ to decrease the set temperature or time value. Press ‘∧’ to increase the set temperature or time value.

• [FAN SPEED] button: Press to change the fan speeds cyclically: Mute -> Low speed -> Medium-low speed -> Medium speed -> Medium-high speed -> High speed -> Turbo -> Auto speed.

• [UP-DOWN SWING]/[ENTER] button: Press to activate or inactivate the upward-downward swing function. When setting a function, press this button to confirm the selection.

• [LEFT-RIGHT SWING]/[BACK] button: Press to activate or inactivate the left-right swing function. When setting a function, press this button to return to the previous setting.

• [FUNCTION] button: Press for function selection; the current function icon to be selected will blink. You can click ‘∧’ or ‘∨’ to switch to the next function. If the icon is lit up permanently, it means the function is activated; otherwise, it is inactivated. Functions include SLEEP, I FEEL, HEALTH, ECO, GENTLE, SELF-CLEANING, 8H, GENERATOR, and PARAMETER SETTING.

Night Quiet Mode is effective only in cooling or heating modes. Once enabled, it will activate at the selected start time and deactivate at the selected end time.

Set with the wired controller:

1. In the power on or off state, press and hold the “FAN” key and the “∨” key for 5-7 seconds. The parameter setting screen is displayed.

2. Use the “∧” or “∨” keys to select the icon “bA” (it will blink in the time display area).

3. Press the “ENTER” button. “bA” stops blinking, and the temperature display zone icon blinks.

4. Use the “∧” or “∨” buttons to select “ON” or “OF”, then press “ENTER” to enable or disable Night Quiet Mode.

5. Press the “ENTER” button again. “bA” blinks. Use the “∧” or “∨” buttons to navigate to the icon “bb”, and “bb” blinks.

6. Press “ENTER”. The digital code blinks in the temperature display zone. Select a start time between “0” and “23”.

7. Press “ENTER” to confirm. “bb” blinks. Use the “∧” or “∨” buttons to navigate to the “bC” icon, and “bC” blinks.

8. Press “ENTER”. The digital code blinks in the temperature display zone. Select an end time between “0” and “23”.

9. Press “ENTER” to confirm. “bC” blinks.

10. Press the “BACK” or “MODE” icon (or wait 5 seconds) to return to the normal display interface.

Set by remote controller (optional):

1. Perform the matching network process: Press “DISPLAY” or “ECO” keys 6 times consecutively within 5 seconds, or press “MODE” and “∨” keys for 5 seconds simultaneously. The display will show “CF”.

2. After network matching, open the TCL Home app and tap “Night Silent Mode” to set the function to “on” or “off”.

3. In the “on” state, set the startup and shutdown time (from 12:00 AM to 11:00 PM). Click “✓” in the upper right corner to confirm the setting.

If the default static pressure (150 Pa) fails to meet your installation duct requirements, you can adjust the rotational speed. There are two methods:

1. Wired Controller Settings:

1. In the power on or off state, press and hold the “FAN” key and the “∨” key for 5-7 seconds.

2. The parameter setting screen will display. Use the “∧” or “∨” keys to select the “PL” icon (it will blink in the time display area).

3. Press the “ENTER” button. The “PL” icon stops blinking, and the digital code in the temperature display zone blinks (default is “00”).

4. Use the “∧” or “∨” keys to select a number from “01” to “09” corresponding to the static pressure value you need. See the table below.

5. Press the “ENTER” button to confirm. The “PL” icon blinks again.

6. Press the “BACK” or “MODE” icon (or wait 15 seconds) to return to the normal display.

Static Pressure Setting Codes (Wired Controller)

2. Remote Controller Settings (optional):

1. In the power on or off state, aim the remote controller at the receiving display board and hold the “FAN” and “MODE” keys for 5 seconds. The remote display shows “00”.

2. Use the “∧” or “∨” keys to select a code from “A1” to “A9” corresponding to the static pressure value you need.

3. Press “MODE” to confirm. The buzzer will beep once. The corresponding digital code (“01” – “09”) will be displayed on the receiving display board.

4. After 30 seconds, both the remote and the receiving board will return to normal display.

The TCL TCD71D1HWH-DV models are pre-charged with refrigerant for 20 meters of connecting piping. Adjustments are needed if your pipe length is different.

• When the pipeline length exceeds 20 meters: Additional refrigerant is required. The formula is: Additional charge (kg) = {Main length (m) – 20(m)} × 0.03 (kg/m).

• When the pipeline is longer than 10m but shorter than 20m: Refrigerant must be reduced for optimal performance. The formula is: Amount of refrigerant reduced (kg) = {20(m) – main length (m)} × 0.03 (kg/m).

• When the pipeline is longer than 5m but shorter than 10m: Refrigerant must be reduced. The formula is: Amount of refrigerant reduced (kg) = {20(m) – main length (m)} × 0.03 (kg/m).

• When the pipeline is shorter than 5 meters: The refrigerant shall be at the rated charge indicated on the nameplate for 5 meters of refrigerant pipeline.

Additional Charge per Meter of Pipe (R32)

Pipe Length and Height Drop Limits

When the drop between indoor and outdoor units is longer than 10m, an oil return bend should be added every 6m.

If the display panel or wired control displays an error code, refer to the table below.

If your air conditioner fails to function normally but is not displaying an error code, please check the following items before calling for maintenance.

If you are experiencing poor cooling or heating, please check the following items.

The following situations are not operation failures.