59
12.3.4 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
4 × 1.5 mm
2
(3/4 ~ 1.75HP) or 4 × 2.5 mm
2
(2.0 ~ 2.5HP) 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.
Terminals on the outdoor unit S1 2 3
Colour of wires (connection cable)
Terminals on the indoor unit L 1 N S1 2 3
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 11.2.4 of indoor unit.
Holder
Indoor unit
Indoor & outdoor
connection cable
Earth wire
longer than
others
AC wires
for safety
reason
Terminal Board
WARNING
This equipment must be properly earthed.
Earth wire shall be Yellow/Green (Y/G) in colour and longer than other AC wires for safety reason.
12.3.5 Piping 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 6 mm or above.
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