Outdoor Unit - Panasonic CS-Z20TKR Service Manual

12.3 Outdoor Unit

12.3.1 Install the Outdoor Unit

After selecting the best location, start installation to Indoor/Outdoor Unit Installation Diagram.
1 Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10 mm).
2 When installing at roof, please consider strong wind and earthquake.
Please fasten the installation stand firmly with bolt or nails.
A
12.3.2 Connect the Piping
12.3.2.1 Connecting the Piping to Indoor
For connection joint location at outside building
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
12.3.2.2 Connecting the Piping to Outdoor
Decide piping length and then cut by using pipe cutter.
Remove burrs from cut edge.
Make flare after inserting the flare nut (locate at valve)
onto the copper pipe.
Align center of piping to valve and then tighten with
torque wrench to the specified torque as stated in the
table.
B
Torque
wrench
Model
Z20***, Z25***,
570 mm
Z35***
Z42***, Z50***,
Z60***, Z71***, 613 mm
Z80***
For connection joint location at inside building

Decide the length.

Cut and remove the tube connectors at indoor
copper pipings (both gas and liquid piping) by
using pipe cutter. Remove burrs from cut edge.

Use pipe expander to expand the end of long
piping.

Align the center of piping and braze the piping
joints.
indoor
copper pipe
(40~50mm)
tube connector
1. C t u a n d
Remove
Do not overtighten, overtightening may cause gas leakage
Piping size
6.35 mm (1/4")
9.52 mm (3/8")
12.7 mm (1/2")
15.88 mm (5/8")
19.05 mm (3/4")
53
A B C
105 mm 18.5 mm
130 mm 24 mm
brazing point
2. Expand . 3
long pipe
Torque
[18 N•m (1.8 kgf.m)]
[42 N•m (4.3 kgf.m)]
[55 N•m (5.6 kgf.m)]
[65 N•m (6.6 kgf.m)]
[100 N•m (10.2 kgf.m)]
D
320 mm
360.5 mm
Braze
both pipe