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11.3.4. 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).
11.3.5. 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 polychloroprene sheathed 3 × 1.5 mm
2
(1.5HP) 3 × 2.5 mm
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
(clamper).
4. Attach the control board cover back to the original
position with the screw.
5. For wire stripping and connection requirement, refer to
instruction of indoor unit.
• Earth wire shall be Yellow/Green (Y/G) in colour and longer
than other AC wires for safety reason.
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