DAIKIN FWT02HATVMV1 (01) PDF Document

Ask your dealer or qualified person to carry out installation work. Do not attempt to install the air conditioner yourself. Improper installation may result in water leakage, electric shocks or fire.

Install the air conditioner according to the instructions given in the manual. Incomplete installation may cause 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 the unit falling, water leakage, electric shocks or fire.

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

Electrical work must be performed in accordance with relevant local and national regulations and with instructions in the installation manual. Be sure to use a dedicated power supply circuit only. Insufficiency of power circuit capacity and improper workmanship may result in electric shocks or fire.

Be sure to use a dedicated power circuit. Never use a power supply shared by another appliance.

Use a cable of suitable length. Do not use tapped wires or an extension lead, as this may cause overheating, electric shocks or fire.

Make sure that all wiring is secured, the specified wires are used, and that there is no strain on the terminal connections or wires. Improper connections or securing of wires may result in abnormal heat build-up or fire.

When wiring the power supply, position the wires so that the control box lid can be securely fastened. Improper positioning of the control box lid may result in electric shocks, fire or overheating terminals.

After connecting interconnecting and supply wiring, be sure to shape the cables so that they do not put undue force on the electrical covers or panels. Install covers over the wires. Incomplete cover installation may cause terminal overheating, electrical shocks, or fire.

When installing or relocating the air conditioner, be sure to bleed the refrigerant circuit to ensure it is free of air, and use only water. The presence of air or other foreign matter in the refrigerant circuit cause abnormal pressure rise, which may result equipment damage and even injury.

The installation height from the floor must be over 2.3m.

Be sure to earth the air conditioner. Do not earth the unit to a utility pipe, lightning conductor or telephone earth lead. Imperfect earthing may result in electric shocks.

Be sure to install an earth leakage breaker. Failure to install an earth leakage breaker may result in electrical shocks, or fire.

All electrical wiring must not touch the water piping or any moving parts of the fan motors.

Confirm that the unit has been switched OFF before installing or servicing the unit.

Disconnect from the main power supply before servicing the air conditioner unit.

DO NOT pull out the power cord when the power is ON. This may cause serious electrical shocks which may result in fire hazards.

Keep the indoor units, power cable and transmission wiring, at least 1m from TVs and radios, to prevent distorted pictures and static.

The restrictions on installation specified in the indoor unit installation drawing must be met.

Both air intake and exhaust must have clear paths met.

The unit must not be in the path of direct sunlight.

The unit must be away from sources of heat or steam.

There must be no source of machine oil vapour (this may shorten indoor unit life).

Cool air should be circulated throughout the room.

The unit should be away from electronic ignition type fluorescent lamps (inverter or rapid start type). As these may shorten the remote controller range.

The unit should be at least 1 metre away from any television or radio set (unit may cause interference with the picture or sound).

Install at the recommended height (more than 2.3m).

Do not install the units at or near a doorway.

Do not operate any heating apparatus too close to the air conditioner unit or use in a room where mineral oil, oil vapour or oil steam exist, this may cause plastic part to melt or deform as a result of excessive heat or chemical reaction.

When the unit is used in a kitchen, keep flour away from going into suction of the unit.

This unit is not suitable for factory used where cutting oil, mist or iron powder exist or voltage fluctuates greatly.

Do not install the units at an area like a hot spring or oil refinery plant where sulphide gas exists.

IMPORTANT : DO NOT INSTALL OR USE THE AIR CONDITIONER UNIT IN A LAUNDRY ROOM.

The mounting plate should be installed on a wall which can support the weight of the indoor unit.

1) Temporarily secure the mounting plate to the wall, make sure that the panel is completely level, and mark the drilling points on the wall.

2) Secure the mounting plate to the wall with screws.

For the DAIKIN FWT02HATVMV1, the recommended mounting plate retention spots include 7 spots in total. Ensure the mounting plate is level by placing a leveler on the tabs.

For walls containing metal frame or metal board, be sure to use a wall embedded pipe and wall cover in the feed-through hole to prevent possible heat, electrical shock, or fire.

Be sure to caulk the gaps around the pipes with caulking material to prevent water leakage.

1) Drill a feed-through hole of 65mm in the wall so it has a down slope toward the outside.

2) Insert a wall pipe into the hole.

3) Insert a wall cover into wall pipe.

4) After completing refrigerant piping, wiring, and drain piping, caulk pipe hole gap with putty.

1) Remove the valve cap from the valve joint.

2) Connect the chilled water return piping (field supply), followed by chilled water supply piping (field supply).

3) It is recommended to use flexible pipes to connect chilled water supply and return to the valve joint for easier installation.

4) Use torque wrench when tightening the nut. Recommended torque is 21-23Nm for the joint connection.

The valve type is a 3-way valve with a DN of 15 and G of 3/4″.

1) Rotate to detach wire clip from hook on the right and remove the drain hose.

2) Remove the drain plug on the left side and attach it to the right side.

3) Insert the drain hose and tighten by rotating the wire clip to hook. Forgetting to tighten this may cause water leakages.

Note: The drain hose is on the back of the unit. Do not apply lubricating oil (refrigerant machine oil) when inserting, as application causes deterioration and drain leakage of the plug.

The drain hose should be inclined downward. No trap is permitted. Do not put the end of the hose in water.

Remove the air filters and pour some water into the drain pan to check the water flows smoothly.

The figures shown in the table below are for information purposes only. They should be checked and selected to comply with the local/national codes of regulations.

All wires must be firmly connected.

Make sure all the wire do not touch the pipings, or any moving parts.

The connecting wire to the indoor unit must be clamped by using provided cord anchorage.

The power supply cord must be equivalent to H07RN-F which is the minimum requirement.

Make sure no external pressure is applied to the terminal connectors and wires.

Make sure all the covers are properly fixed to avoid any gap.

Use round crimp-style terminal for connecting wires to the power supply terminal block. Connect the wires by matching to the indication on terminal block.

The printed circuit board has 3 jumpers option to control the unit operation when room temperature achieves user set temperature.

Note: During heat mode, fan will stop eventually to prevent cold draft to user.

1) Turn on DIP_CONFIG 5 to enable contact on-off.

2) Connect contact to TB_ON/OFF with AWG 18 Stranded Copper Wire.

3) Supply 24VAC or 24VDC with current < 100mA.

4) When the contact is closed, the unit will be on standby mode. Unit can be operational when turn ON using wireless controller or wired panel.

5) When the contact is opened, the unit will be on standby mode and not able to change status.

Do NOT operate the system before the following checks are OK:

The indoor unit is properly mounted.

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

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

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

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

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

There are NO water leaks.

The chilled water pipes are thermally insulated.

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

The water valve on the indoor unit is fully open.

The following field wiring has been carried out according to this document and the applicable legislation.

Drainage: Make sure drainage flows smoothly. Possible consequence: Condensate water might drip.

The indoor unit receives the signals of the user interface.

The table below shows the LED indicator lights for the air conditioner unit under normal operation and fault conditions.

Thermal carrier: water

Minimum water entering temperature: 6

Maximum water entering temperature: 50

Maximum water pressure: 16 bar

Maximum water differential pressure : 1.6 bar

Cooling Mode:

Heating Mode:

Ts: Dry bulb temperature. Th: Wet bulb temperature.

Before carrying out any maintenance or repair activity, ALWAYS switch off the circuit breaker on the supply panel, remove the fuses or open the protection devices of the unit.

Do NOT touch live parts for 10 minutes after the power supply is turned off because of high voltage risk.

Please note that some sections of the electric component box are hot.

Make sure you do NOT touch a conductive section.

Do NOT rinse the unit. This may cause electric shocks or fire.

Maintenance MUST be done by an authorized installer or service agent.

Before performing any maintenance or service work, touch a metal part of the unit in order to eliminate static electricity and to protect the PCB.