Panasonic CS-C18JKV

24
11.3. Outdoor Unit
11.3.1. Install the Outdoor Unit
• After selecting the best location, start installation according 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.
11.3.2. Connect the Piping
Connecting the Piping to Indoor
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.
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
(located 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.
11.3.3. Air Purging of the Piping and Indoor
The remaining air in the Refrigeration cycle which contains moisture may cause malfunction on the compressor.
1. Remove the caps from the 2-way and 3-way valves.
2. Remove the service-port cap from the 3-way valves.
3. To open the valve, turn the valve stem of 2-way valve counter-clockwise approx. 90° and hold it there for ten seconds, then
close it.
4. Check gas-leakage of the connecting portion of the pipings.
• For the left pipings, refer to item 4(A).
Model A B C D
C7***, RU-C7**
C9***, RU-C9**
474 mm 87 mm 18.5 mm 261 mm
C12***, RU-C12** 570 mm 105 mm 18.5 mm 320 mm
C18***, RU-C18**
C24***, RU-C24**
C28***
612.5 mm 131 mm 19 mm 383 mm
Piping Size Torque
1/4” (6.35 mm) [18 N•m (1.8 kgf.m)]
3/8” (9.52 mm) [42 N•m (4.3 kgf.m)]
1/2” (12.7 mm) [55 N•m (5.6 kgf.m)]
5/8” (15.88 mm) [65 N•m (6.6 kgf.m)]
3/4” (19.05 mm) [100 N•m (10.2 kgf.m)]
Do not over tighten, over tightening cause gas leakage.