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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.
Connecting the Piping to Outdoor Multi
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.
Model A B C D
E7***
570 mm 105 mm 18.5 mm 320 mm
E9***
E12***
E15***
E15***-3
612.5 mm 131 mm 19 mm 383 mmE18***
E21***
E24***
613 mm 131 mm 16 mm 360.5 mm
E28***
Do not over tighten, over tightening cause gas leakage.
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)]
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