Panasonic CU-3E18LBE [41/103] Install the outdoor unit

Panasonic CU-3E18LBE [41/103] Install the outdoor unit
41
Outdoor Unit Installation Guidelines
Where a wall or other obstacle is in the path of outdoor unit’s intake or exhaust airflow, follow the installation guidelines below.
For any of the below installation patterns, the wall height on the exhaust side should be 1200mm or less.
10.2.2. 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.
10.2.3. Connect The Piping
Remove the control board cover (resin) from the unit by
loosening three screws
Connecting The Piping To Outdoor Unit
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 valves and then tighten with torque
wrench to the specified torque as stated in the table.
Model A B C D
CU-3E18***
CU-4E23***
613 mm 131 mm 16 mm 360.5 mm
Piping size Torque
1/4” [6.35 N
m] [18 Nm (1.8 kgf.m)]
3/8” [9.52 N
m] [42 Nm (4.3 kgf.m)]
1/2” [12.7 N
m] [55 Nm (5.6 kgf.m)]
5/8” [15.88 N
m] [65 Nm (6.6 kgf.m)]
3/4” [19.05 N
m] [100 Nm (10.2 kgf.m)]
Do not over tighten, over tightening cause gas leakage.

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