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English
7
CAUTION
Setting the unit at an angle opposite to the drain piping
might cause leaks.
• Use the drain hose and the metal clamp. Tighten the clamp firmly.
Insert the drain hose into the drain socket, up to the tape. Tighten
the clamp until the screw head is less than 4 mm from the hose.
• Wrap the sealing pad over the metal clamp and drain
hose to insulate.
• Insulate the drain hose inside the building.
〈
PRECAUTIONS FOR DRAIN RAISING PIPING
〉
〈
HOW TO INSTALL PIPING
〉
(1) Connect the drain hose to the drain raising pipes, and insu-
late them.
(2) Connect the drain hose to the drain outlet on the indoor unit,
and tighten it with the metal clamp.
(3) Insulate both metal clamp and drain hose with the sealing pad.
• If converging multiple drain pipes, install according to the pro-
cedure shown below.
Select converging drain pipes whose gauge is suitable for the
operating capacity of the unit.
CAUTION
• 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 pipes and corrode the heat
exchanger.
• Keep in mind that it will become the cause of getting drain
pipe blocked if water collects on drain pipe.
(2) After piping work is finished, check drainage flows
smoothly.
• Open the water inlet lid, add approximately
1 liter of water gradually and check drainage flow.
[ WHEN ELECTRIC WIRING WORK IS FINISHED ]
• Check drainage flow during COOL running, explained under
“TEST OPERATION.”
[ WHEN ELECTRIC WIRING WORK IS NOT FINISHED ]
• Remove the electric parts box lid, connect a power supply
and remote controller to the terminals.
(Refer to the “HOW TO CONNECT WIRINGS”)
Be sure attach the electric parts box lid before turning on the
power.
Next, press the inspection/test operation button “
” on the
remote controller. The unit will engage the test operation
mode. Press the operation mode selector button “
” until
selecting FAN OPERATION “
”. Then, press the ON/OFF
button “
”. The indoor unit fan and drain pump will start up.
Check that the water has drained from the unit. Press “
”
to go back to the first mode.
• You can check whether drainage is satisfactory or not by
removing the access opening lid and checking the water level
of the drain pan through the access opening.
•
Be careful when doing so because the fan is turning at
the same time.
A (mm)
When canvas duct is installed
350 – 530
When air inlet panel is directly installed
275
Metal clamp
Drain hose
Tape
≤
4mm
Large sealing pad
Metal clamp
(accessory)
(accessory)
A
Drain raising pipe
Metal clamp
(accessory)
Drain hose
(accessory)
Ceiling slab
300 mm
or less
Hanging bar
Adjustable range
(0 – 250mm)
Part to be procured
in the field
1 – 1.5m
T-joint converging drain pipes
≥
100mm
Open
Water inlet
Portable pump
Water inlet lid
Refrigerant
pipes
Close
Bucket
Drain outlet for maintenance
(with rubber plug)
Note: Use this outlet to drain water from the drain pan.
Adding water from
inspection opening
L
N
X
Y
N
L
Electric parts box
230V single phase
power supply.
Indoor
PC board
Power supply
terminal block
TEST
TEST
01_EN_3P233622-5F.fm Page 7 Thursday, December 18, 2008 4:21 PM
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