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11.3.4 Air Purging of the Piping and Indoor
The remaining air in the Refrigerant 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.
o For the left piping, refer to 4 (A).
11.3.5 Connect the cable to the Outdoor Unit
1 Remove the control board cover from the
unit by loosening the screw.
2 Connecting cable between indoor unit and
outdoor unit shall be approved
polychloroprene sheathed 3 x 2.5mm
2
(2.0 ~
2.5HP) flexible cord, type designation 245 IEC
57 or heavier 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.
4 Attach the control board cover back to the
original position with the screw.
5 For wire stripping and connection requirement,
refer to instruction g of the indoor unit.
This equipment must be properly earthed.
• Earth wire shall be Yellow/Green (Y/G) in colour and longer than the other AC wires for safety reason.