8
〈
PRECAUTIONS FOR DRAIN RAISING PIPE
〉
• Make sure the drain raising pipe height is no higher than
23-5/8 in..
• Place the drain raising pipe vertically and make sure it is no
further than 11-3/4 in. from the unit.
(Refer to 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.
(2) After piping work is finished, check drainage flows
smoothly.
• Gradually insert approximately 1 L of water into the drain
pan to check drainage in the manner described below.
Metal clamp (1)
Drain hose (2)
Tape
Fig. 11
Fig. 12
≤
1/8 in.
Large sealing
pad (5)
Metal clamp (1)
(accessory)
(accessory)
(accessory)
(accessory)
Drain raising pipe
Metal clamp (1) (accessory)
Drain hose (2) (accessory)
Ceiling slab
11-3/4 in. or less
Hanging bracket
Adjustable range
(23-5/8 in. or less)
(Field supply)
3-5 ft.
Fig. 13
CAUTION
• The electric wiring work shall be performed by qualified
electricians.
• If workers not having the electrician qualification have per-
formed 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, 60Hz 208-
230V) respectively to the terminal block and securely
connect the ground 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 1 L of water from the water
inlet 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 “
”. (The indoor fan and
drain pump will operate.)
CAUTION
The fan will turn also at the same time. Take due care.
Do not touch the drain pump to prevent electric shock.
7. Make sure to use the remote controller in finishing the
operation.
TEST
TRANSMISSION
WIRING
REMOTE
CNTRL
T1
F1
FORCED
OFF
P2
F2
P1
T2
TRANSMISSION
WIRING
REMOTE
CNTRL
T1
F1
FORCED
OFF
P2
F2
P1
T2
L
N
L2
L1
Water inlet
Portable pump
Inspection lid
Refrigerant pipes
Bucket
Service drain hole
Drain outlet
(with rubber cap)
Indoor PCboard
(ASSY)
Terminal block
Terminal block
Remote controller
terminal connection
method
Power supply:
Single phase,
60Hz,208-230V
Power terminal
connection
method
