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.
Model | A | B | C | D | |
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CE9*** | 570 mm | 105 mm | 18.5 mm | 320 mm | |
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CE12*** | |||||
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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.
Do not over tighten, over tightening cause gas leakage.
Piping Size |
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1/4” (6.35 mm) | [18 | N•m (1.8 kgf.m)] |
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3/8” (9.52 mm) | [42 | N•m (4.3 kgf.m)] |
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1/2” (12.7 mm) | [55 | N•m (5.6 kgf.m)] |
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5/8” (15.88 mm) | [65 | N•m (6.6 kgf.m)] |
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3/4” (19.05 mm) | [100 | N•m (10.2 kgf.m)] |
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11.3.3.Evacuation of the Equipment
WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the following procedure.
1.Connect a charging hose with a push pin to the Low side of a charging set and the service port of the
•Be sure to connect the end of the charging hose with the push pin to the service port.
2.Connect the center hose of the charging set to a vacuum pump.
3.Turn on the power switch of the vacuum pump and make sure that the needle in the gauge moves from 0 cmHg (0 MPa) to
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