Electric Wiring Work - Daikin FCQ18AAVJU Installation Manual

• After checking the drainage of water, refer to Fig. 20
and attach the sealing material (14) to perform the
thermal insulation of the drain socket.
Fig. 20
[When the electric wiring work is not finished]
• The electric wiring works (including ground) must be
carried out by a qualified electrician.
• If a qualified person is not present, after the electric
wiring work is finished, check the drainage accord ing
to the method specified in [When the electric wiring
work is finished].
1. Open the control box cover and connect the single
phase 208/230 V power supply to the terminal (L
on the terminal block (X2M).
Connect the ground wiring to the ground terminal.
(Refer to Fig. 21)
Power supply wiring terminal block (X2M)
Clamp
(Field supply)
Single phase
power supply
L
1
208/230 V
L
2
Ground wire
Power supply
Ground terminal
wiring terminal
block (X2M)
Fig. 21
2. Make sure the control box cover is closed before
turning on the power supply.
• Throughout the whole process, carry out the
work using caution with wiring around the control
box so that the connectors do not come off.
3. Gradually pour 1/4 gal. (1 ) of water from the air
outlet on the left side of the drain socket into the
drain pan using caution to avoid splashing water on
the electric components such as the drain pump.
(Refer to Fig. 19)
English
Sealing material (14)
(Accessory)
, L )
1 2
Control box cover
4. When the power supply is turned on, the drain pump
will operate. Drainage can be checked at the trans-
parent part of the drain socket.
(The drain pump will automatically stop after
10 minutes.)
After checking the drainage of water, refer to Fig. 20
and attach the sealing material (14) to perform the
thermal insulation of the drain socket.
• Do not connect the drain piping directly to the
sewage that gives off ammonia odor.
The ammonia in the sewage may go through the
drain piping and corrode the heat exchanger of
the indoor unit.
• Do not apply external force to the float switch or it
could cause malfunction.
5. Turn off the power supply after checking drainage
and remove the power supply wiring.
6. Attach the control box cover as before.
• Do not touch the electronic parts other than the
terminal block (X2M).
(3) Sweating may occur and result in water leakage.
Therefore, make sure to insulate the indoor drain pip-
ing and socket locations.
After drainage is checked, put the attached sealing
material (14) referring to Fig. 20, and insulate the drain
hose (1) and the metal clamp (2) with the attached seal-
ing material (Large) (10) referring to Fig. 22.
Sealing material - Large
(10) (Accessory)
Be sure to lay the
sealing material
(10) on (14).
Sealing material (14)
(Accessory)
Sealing material (Large) (10)
Drain hose (1)
(Accessory)
(Accessory)
Start wrapping from where the
metal clamp (2) is tightened.
Metal clamp (2)
(Accessory)
Wrap the sealing material (Large) (10)
so that the metal clamp (2) end side
may be doubled.
Fig. 22

7. ELECTRIC WIRING WORK

7-1 GENERAL INSTRUCTIONS
• Make sure that all electric wiring work is carried out by quali-
fied personnel according to the applicable legislation and
this installation manual, using a separate dedicated circuit.
Insufficient capacity of the power supply circuit or improper
electrical construction may lead to electric shock or a fire.
• A disconnection incorporated in the fixed wiring is to be provided.
Use an all-pole disconnection type breaker with at least 1/8 in.
(3 mm) between the contact point gaps.
Do not have
the clearance.
10