Panasonic CS-E7PKEW Service Manual page 70

11.3.4 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
2
mm (3/4 ~ 1.75HP) or 4 × 2.5 mm
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
•
Earth wire shall be Yellow/Green (Y/G) in colour and longer than the other AC wires for safety reason.
11.3.5 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.
11.3.5.1 Cutting and flaring the piping
1 Please cut using pipe cutter and then remove the burrs.
2 Remove the burrs by using reamer. If burrs are not removed, gas leakage may be caused. Turn the piping
end down to avoid the metal powder entering the pipe.
3 Please make flare after inserting the flare nut onto the copper pipes.
2
(2.0 ~ 2.5HP) flexible cord, type designation 60245 IEC 57 or heavier
WARNING
This equipment must be properly earthed.
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of indoor unit.