48
12.3.4 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 item 4 (A).
12.3.5 Connect the cable to the Outdoor Unit
1 Remove the control board cover from the unit by loosening the screw.
2 Cable Cable connection to the power supply through Isolating Devices (Disconnecting means).
o Connect the approved polychloroprene sheathed power supply cord 3 × 4.0 mm
2
type designation
60245 IEC 57 or heavier cord to the terminal board, and connect the others end of the cable to Isolating
Devices (Disconnecting means).
o Do not use joint power supply cord. Replace the wire if the existing wire (from concealed wiring, or
otherwise) is too short.
o In unavoidable case, joining of power supply cord between isolating devices and terminal board of air
conditioner shall be done by using approved socket and plug rated 25A. Wiring work to both socket and
plug must follow to national wiring standard.
3 Connection cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed
4 × 1.5 mm
2
flexible cord, type designation 60245 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.
4 Connect the power supply cord and connection cable between indoor unit and outdoor unit according to the
diagram below.
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