Panasonic CU-Z20VKE Series Installation Instruction page 55

12.2.4.1 Wire Stripping Connecting and Requirement
Wire stripping
No loose strand
when inserted
Indoor/outdoor
connection
terminal board
5 mm or more
(gap between wires)
Conductor Conductor over
fully inserted inserted
ACCEPT PROHIBITED
12.2.5 Connect the Piping
12.2.5.1 Connecting the Piping to Indoor
For connection joint of all model (except R32 model)
Please make flare after inserting flare nut (locate at
joint portion of tube assembly) onto the copper pipe.
(In case of using long piping)
Connect the piping

Align the center of piping and sufficiently tighten
the flare nut with fingers.

Further tighten the flare nut with torque wrench in
specified torque as stated in the table.
Spanner or
Wrench
WARNING
Do not joint wires
OR
Conductor not
fully inserted
CAUTION
PROHIBITED
Torque
wrench
RISK OF FIRE
JOINING OF
WIRES MAY CAUSE
OVERHEATING AND FIRE.
OR
Do not connect power supply to indoor and outdoor
unit at the same time.
Risk of fi re if wrong connection of power supply.
Additional Precautions For R32 Models when
connecting by flaring at indoor side
Ensure to do the re-flaring of pipes before connecting to
units to avoid leaking.
Seal sufficiently the flare nut (both gas and liquid sides)
with neutral cure (Alkoxy type) & ammonia-free
silicone sealant and insulation material to avoid the
gas leak caused by freezing.
Neutral cure (Alkoxy type) & ammonia-free silicone
sealant is only to be applied after pressure testing and
cleaning up by following instructions of sealant, only to
the outside of the connection. The aim is to prevent
moisture from entering the connection joint and
possible occurrence of freezing. Curing sealant will
take some time. Make sure sealant will not peel off
when wrapping the insulation.
54
Use complete wire without joining.
Use approved socket and plug with earth pin.
Wire connection in this area must follow to national
wiring rules.
Apply neutral cure
(Alkoxy type) and
ammonia-free silicone
sealant along the
circumference