English
10
•
Use particular caution when carrying out the steps in the Fig. 15.
•
When extending the drain pipes, use commercially available extension hose, and be sure to insulate
the extended part of the drain hose which is indoors.
(Refer to Fig. 16)
•
Use the same pipe diameter as the connection piping (hard vinyl chloride piping, nominal
diameter 20) or higher.
•
Use commercially available hard vinyl chloride joints (nominal diameter 20) when connecting hard
vinyl chloride piping (nominal diameter 20) directly to drain hoses attached to the indoor unit,
such as embedded pipes.
(Refer to Fig. 17)
2. Attach all pipes so as to ensure thorough drainage.
•
After connecting all pipes, carry out a drain check by opening the
front panel, removing the air filter, pouring some water into the
drain pan, and making sure the water drains out of the hose
smoothly.
( Refer to Fig. 18 )
[ 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.
7. ELECTRIC WIRING WORK
•
All field supplied parts and materials and electric works must conform to local codes.
•
Use copper wire only.
•
For electric wiring work, refer also to “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.
The drain hose must lead down.
Drain pipe
Fig. 15
Drain pipe
WRONG
WRONG
GOOD
WRONG
The original edge must not be placed beneath the water.
Leading
down
Indoor unit drain hose
2) 3) Insulation pipe
(procured locally)
Insulation tape
Fig. 16
Drain hose extension
Drain hose attached
to the indoor unit
Fig. 17
Commercially available hard vinyl
chloride joint (nominal diameter 20)
Hard vinyl chloride piping
(nominal diameter 20)
Fig. 18
01_EN_3P184443-2.fm Page 10 Monday, July 3, 2006 3:14 PM
