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11.4. Outdoor Unit
11.4.1. 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.
11.4.2. CONNECTING THE PIPING
Connecting The Piping To Indoor Unit
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 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.
CUTTING AND FLARING THE PIPING
1. Please cut using pipe cutter and then remove the burrs.
2. Remove the burrs by using reamer. If burrs is not removed, gas leakage may be caused.
Turn the piping end down to avoid the metal powder entering the pipe.
3. Please make flare after inserting the flare nut onto the copper pipes.
Model A B C D
C7HKD, C9HKD, C12HKD,
A7HKD, A9HKD
474 mm 87 mm 18.5 mm 261 mm
A12HKD 570 mm 105 mm 18.5 mm 320 mm
Model
Piping size (Torque)
Gas Liquid
C7HKD, C9HKD, A7HKD, A9HKD 3/8” [42 N
O
m] 1/4” [18 N
O
m)
C12HKD, A12HKD 1/2” [55 N
O
m] 1/4” [18 N
O
m)
Do not over tighten, over tightening cause gas leakage.
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