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10.3 Outdoor Unit
10.3.1 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.
3 Please fasten the installation stand firmly with bolt or nails.
Model A B C D
S9*** 474 mm 87 mm 18.5 mm 261 mm
S12*** 570 mm 105 mm 18.5 mm 261 mm
S18*** 540 mm 160 mm 18.5 mm 330 mm
S24*** 613 mm 130 mm 24 mm 360.5 mm
10.3.2 Connect the Piping
10.3.2.1 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.
10.3.2.2 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.
AB
C
D
Torque
w
c
panner
rWrench
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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