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English
CAUTION
Drain piping connections
Do not connect the drain piping directly to sewage pipes that smell of ammonia. The ammonia in the sew-
age might enter the indoor unit through the drain pipes and corrode the heat exchanger.
8. ELECTRIC WIRING WORK
8-1 General instructions
•
All field supplied parts and materials and electric works must conform to local codes.
•
Use copper wire only.
•
For electric wiring work, refer to also “WIRING DIAGRAM” attached to the unit body.
•
For remote controller wiring details, refer to the installation manual attached to the remote controller.
•
All wiring must be performed by an authorized electrician.
•
A circuit breaker capable of shutting down power supply to the entire system must be installed.
•
Refer to the installation manual attached to the outdoor unit for the size of power supply electric wire con-
nected to the outdoor unit, the capacity of the circuit breaker and switch, and wiring instructions.
•
Be sure to ground the air conditioner.
•
Do not connect the ground wire to gas pipes, plumbing pipes, lightning rods, or telephone ground wires.
•
Gas pipes: might cause explosions or fire if gas leaks.
•
Plumbing: no grounding effect if hard vinyl piping is used.
•
Telephone ground wires or lightning rods: might cause abnormally high electric potential in the ground
during lighting storms.
Fig. 24
Control box lid
Ground
terminal
Power supply
wiring terminal
block
Power supply
single phase 208/230V
L
2
L
1
Ground
wire
01_EN_3P161684-5H.fm Page 16 Thursday, October 21, 2010 1:18 PM
