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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 If installing the unit to a concrete base or other solid base, use M10 or W3/8 bolts and nuts to secure the unit,
and ensure that the unit is fully upright and level.
(The anchor bolt positions are shown in the diagram at the right side.)
In particular, install the unit at a distance from the neighbouring building which conforms to regulations
specified by local noise emission regulation standards.
2 Do not install the outdoor unit to the building’s roof.
3 If there is a possibility that vibration may be transmitted to the rooms of the building, place rubber insulation
between the unit and the installation surface.
12.3.2 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 (locates abnormal 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.
Local pipes can project in any of four directions.
Make holes in the pipe panels for the pipes to
pass through.
Be sure to install the pipe panels to prevent rain
from getting inside the outdoor unit.
[Removing the service panel].
(1) Remove the two mounting screws.
(2) Slide the service panel downward to release
the pawls.
After this, pull the service panel toward you to
remove it.
Do not overtighten, overtightening may cause gas leakage.
Piping size Torque
6.35 mm (1/4”) [18 N•m (1.8 kgf.m)]
9.52 mm (3/8”) [42 N•m (4.3 kgf.m)]
12.7 mm (1/2”) [55 N•m (5.6 kgf.m)]
15.88 mm (5/8”) [65 N•m (6.6 kgf.m)]
19.05 mm (3/4”) [100 N•m (10.2 kgf.m)]
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