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NOTICE
•
Install the drain pipe at a downward slope, as the condensate water may flow backwards and leak into
the room in case of close up of the indoor unit.
•
Do not connect the drain pipe to the sewage pipe or other drain pipe.
•
When the main drain pipe is connected to the other indoor unit, each indoor unit must be higher in
position than the main pipe. Choose the drain pipe with sufficient size in accordance with the cooling
capacity of the indoor unit.
•
After the electric wire and drain pipe are well connected, ensure the smooth flow of water.
(a) Power on.
(b) Pour 2 or 2.5 L of water into the drain tray.
(c) Ensure the smooth flow of water and that there are no water leakages. Pour another 2L of water
more when no water flows out of the pipe's end.
7. Electrical Wiring
WARNING
!
•
The electrical wiring work must be performed by authorized installers. If not, it may cause an electric
shock or a fire.
•
Perform the electrical work according to the regulation of each region and "Installation & Maintenance
Manual", and the dedicated electrical circuit must be used. If the electrical wiring work is performed
incorrectly or there is a capacity shortage of the power circuit, it will cause an electric shock or a fire.
•
Use the specified cables for wiring between the outdoor unit and indoor units. Selecting incorrect
cables will cause an electric shock or a fire.
•
Install an ELB (Earth Leakage Breaker) in the power source. If it is not used, it will cause an electric
shock or a fire.
•
Turn OFF the main power switch of the indoor unit and the outdoor unit and wait for more than 10
minutes before electrical wiring work or a periodical check is performed. If not, it will cause an electric
shock or a fire.
•
Check to ensure that the indoor fan and the outdoor fan have stopped before electrical wiring work or a
routine check is performed.
•
Protect the wires, drain pipe, electrical parts, etc. from rodents or other pests.
•
Tighten screws according to the following torque.
M3.5: 1.2 N·m
M4: 1.0 to 1.3 N·m
M5: 2.0 to 2.4 N·m
M6: 4.0 to 5.0 N·m
M8: 9.0 to 11.0 N·m
M10: 18.0 to 23.0 N·m
•
Connect earth wires for the outdoor / indoor unit to prevent an electrical shock or an unexpected
accident. The earth work must be performed by authorized installers.
Indoor Unit
Auxiliary Drain Pan
(Field-Supplied)
Figure 6.2 Auxiliary Drain Pan
-13-
7. Electrical Wiring
To the Atmosphere
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