Daikin FXDQ20NVE Installation Manual page 9

• To keep the drain piping from sagging, space hanging
bracket every 1 to 1.5 m.
• Use the drain hose (2) and the metal clamp (1). Insert the
drain hose (2) fully into the drain pipe connection hole and
firmly tighten the metal clamp (1) with the upper part of the
tape on the hose end. Tighten the metal clamp (1) until the
screw head is less than 4 mm from the hose.
(Refer to Fig. 11, 12)
• The two areas below should be insulated because conden-
sation may form there causing water to leak.
• Drain piping passing indoors
• Drain pipe connection hole
Referring the figure below, insulate the metal clamp (1) and
drain hose (2) using the included large sealing pad (5).
(Refer to Fig. 12)
Metal clamp (1)
(accessory)
Tape Drain hose (2)
(accessory)
Fig. 11
〈 〈 〈 〈 PRECAUTIONS FOR DRAIN RAISING PIPE 〉 〉 〉 〉
• Make sure the drain raising pipe height is no higher than
600mm.
• Place the drain raising pipe vertically and make sure it is no
further than 300mm from the unit. (Refer to Fig. 13)
Ceiling slab
300 mm or less
Metal clamp (1) (accessory)
Drain hose (2) (accessory)
Fig. 13
〈 〈 〈 〈 PRECAUTIONS 〉 〉 〉 〉
Drain piping connections
• Do not connect the drain piping directly to sewage pipes that
smell of ammonia. The ammonia in the sewage might enter
the indoor unit through the drain piping and corrode the heat
exchanger.
• Do not twist or bend the drain hose (2), so that excessive
force is not applied to it.
(This type of treatment may cause leaking.)
• If you are using central drain piping, follow the procedure
outlined in the figure 10.
• Select central drain piping of proper size according to the
capacity of the connected unit.
English
Large sealing
pad (5)
(accessory)
Metal clamp (1)
(accessory)
≤4mm
Fig. 12
1 – 1.5m
Hanging bracket
Adjustable range
(600mm or less)
Drain raising pipe
(Field supply)
(2) After piping work is finished, check drainage flows
smoothly.
• Gradually insert approximately 1L of water into the drain
pan to check drainage in the manner described below.
CAUTION
• The electric wiring work shall be performed by qualified
electricians.
• If workers not having the electrician qualification have
performed the electric wiring work, the steps 3 to 7 shall
be performed after the TEST RUN.
1. Remove the lid of the control box. Connect the remote
controller and power supply (single-phase, 50 Hz
220-240 V or single-phase, 60Hz 220V) respectively to
the terminal block and securely connect the earth
also.(as shown in the figure below).
CAUTION
Securely clamp the cables with the clamps (9)(10)
offered as accessories as shown in Fig. 14 so that ten-
sion will not be applied on the cable connection areas.
2. Confirm that the lid of the control box is closed before
turning on the power.
3. Remove the inspection lid.
4. Gradually pour approximately 1L of water from the
inspection window into the drain pan to check drainage.
CAUTION
Be sure to prevent an external force from being
exerted on the float switch.
(This may cause breakage.)
5. Attach the inspection lid.
6. Perform the following operation using the remote control-
ler, and check drainage.
• Select the inspection/test operation button "
using the remote controller. The unit will engage the
test operation. Press the operation selector button
" ", and select FAN OPERATION "
• Press the ON/OFF button "
drain pump will operate.)
CAUTION
The fan will turn also at the same time. Take due care.
Drain outlet
Refrigerant pipes
Service drain hole
(with rubber cap)
Indoor PCboard
P1 P2 F1 F2 T1 T2
P1 P2
REMOTE TRANSMISSION FORCED
REMOTE
CNTRL
CNTRL WIRING OFF
Remote controller
terminal connection
method
7. Make sure to use the remote controller in finishing the
operation.
"
TEST
".
". (The indoor fan and
Inspection window
Portable pump
Inspection lid
Bucket
L N
L N
(ASSY)
Power supply:
Single phase,
50 Hz, 220 V~
F1 F2 T1 T2
TRANSMISSION FORCED 240V
WIRING OFF
L N
Single phase,
60Hz, 220 V
Power terminal
connection
method
Terminal block Terminal block
7