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10.3.4 Air Purging of the Piping and Indoor
The remaining air in the Refrigeration cycle which contains moisture may cause malfunction on the compressor.
1
Remove the caps from the 2-way and 3-way valves.
2
Remove the service-port cap from the 3-way valves.
3
To open the valve, turn the valve stem of 2-way valve counter-clockwise approx. 90° and hold it there for
ten seconds, then close it.
4
Check gas-leakage of the connecting portion of the pipings.
For the left pipings, refer to item 4(A).
o
10.3.5 Connect the Cable to the Outdoor Unit
1
Remove the control board cover from the unit
by loosening the screw.
2
Connection cable between indoor unit and
outdoor unit shall be approved type PVC
sheathed or polychloroprene sheathed 3 x
2
1.0 mm
(1.5HP) or 3 x 1.5 mm
2
2.5 mm
(2.5HP) flexible cord. Do not use joint
connection cable. Replace the wire if the existing
wire (from concealed wiring, or otherwise) is too
short.
3
Secure the cable onto the control board with the
holder (clamper).
4
Attach the control board cover back to the
original position with screw.
5
For wire stripping and connection requirement,
refer to instruction 10.2.5 of indoor unit.
2
(2.0HP) or 3 x
28
WARNING
This equipment must be properly earthed.
Earth wire shall be Yellow/Green (Y/G) in
o
colour and longer than other AC wires for
safety reason.
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