Panasonic CS-Z25YKEA Service Manual page 62

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 x
2
1.5 mm (1.0 ~ 1.75HP) or 4 x 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 (clamper).
4 Attach the control board cover back to the original position with screw.
5 For wire stripping and connection requirement, refer to instruction 12.2.4 of indoor unit.
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.
12.3.5.1 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 is 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.
Pipe
Reamer
Point down
1. To cut 2. To remove burrs
2
(2.0 ~ 2.5HP) flexible cord, type designation 60245 IEC 57 or heavier
Terminals on the outdoor unit
Colour of wires
Terminals on the indoor unit
Handle
Bar
Yoke
Core
Red arrow mark
Clamp handle
3. To fl are
1 2 3
1 2 3
0 – 0.5 mm
Bar
Copper pipe
62
Terminal Board
Earth wire
longer than
others
AC wires
for safety
reason
Holder
Indoor & outdoor
connection cable
Indoor unit
Improper fl aring
Inclined Surface Cracked Uneven
damaged
When properly fl ared, the internal surface of the
fl are will evenly shine and be of even thickness.
Since the fl are part comes into contact with the
connections, carefully check the fl are fi nish.
thickness