Daikin FXCQ80AVEB [11/30] Refrigerant piping work

English 10

CAUTION

• Install the indoor unit leveled.

If the indoor unit is inclined and the drain piping side gets high, it may cause malfunction of a float switch

and results in water leakage.

• Attach nuts on the upper and lower side of hanger.

If there is no upper nut and the lower nut is over-tightened, the hanger and the top plate will deform and

cause abnormal sound.

• Do not insert materials other than that specified into the clearance between the hanger and the

• For the outdoor unit refrigerant piping, refer to the installation manual attached to the outdoor unit.

• Carry out insulation of both gas and liquid refrigerant piping securely. If not insulated, it may cause water

For use under high humidity, strengthen the insulation material for refrigerant piping. If not strengthened,

the surface of insulation material may sweat.

• Before installation work, make sure that the refrigerant is R410A. (Unless the refrigerant is R410A, the nor-

mal operation cannot be expected.)

CAUTION

This air conditioner is a dedicated model for new refrigerant R410A. Make sure to meet the require-

ments shown below and carry out installation work.

Do not mix substance other than the specified refrigerant such as air into the refrigeration circuit.

If the refrigerant leaks during the work, ventilate the room.

• The refrigerant is pre-charged in the outdoor unit.

• When connecting the pipings to the air conditioner, make sure to use a spanner and a torque wrench as

• For the dimension of flared part and the tightening torque, Refer to the Table 2.

• When making a flare connection, coat the flared inner surface only with ether oil or ester oil.

Then, turn the flare nut 3 to 4 times with your hand and screw in the nut.