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11.3.4. 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 (C7GK,
C9GK, C12GK) or 5 (A7GK, A9GK, A12GK) × 1.5 mm
2
flexible cord, type designation 245 IEC 57 or heavier
cord.
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.
11.3.5. Pipe Insulation
1. Please carry out insulation at pipe connection portion as
mentioned in Indoor/Outdoor Unit Installation Diagram.
Please wrap the insulated piping end to prevent water
from going inside the piping.
2. If drain hose or connecting piping is in the room (where
dew may form), please increase the insulation by using
POLY-E FOAM with thickness 6mm or above.
CAUTION
• If gauge needle does not move from 0 cmHg (0 MPa) to -76 cmHg (-0.1 MPa), in step 3 above take the following measure:
• If the leak stops when the piping connections are tightened further, continue working from step 3.
• If the leak does not stop when the connections are retightened, repair the location of leak.
• Do not release refrigerant during piping work for installation and reinstallation. Take care of the liquid refrigerant, it may cause frostbite.
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