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Connecting Pipes
Connecting the pipings to the indoor unit and drain hose to drain pipe
• Align the center of the pipings and sufficiently
tighten the flare nut by hand.
• Tighten the flare nut with a wrench.
Outside diameter
mm
Ø6.35
Ø9.52
Ø12.7
Ø15.88
Ø19.05
• When extending the drain hose at the indoor
unit, install the drain pipe.
Insulation, Others
THERMAL INSULATION
• Insulate the joint and tubes completely
Union for liquid pipe
Union for gas pipe
22 Ventilator
Torque
kg . m
inch
1/4
1.8~2.5
3/8
3.4~4.2
1/2
5.5~6.6
5/8
6.6~8.2
3/4
9.9~12.1
All thermal insulation must comply with local require-
ment.
Refrigerant pipe and thermal
insulator(Local supply)
Hose crip for thermal insulator
(Local supply)
Thermal insulator for refrigerant pipe
(Local supply)
Indoor unit tubing
Torque wrench
Indoor unit tubing
Drain pipe
Vinyl tape(narrow)
Adhesive
Hose crip for thermal insulator(Local supply)
Make sure that there is no clearance here.
Flare nut
Pipings
Spanner (fixed)
Flare nut
Connection pipe
Indoor unit drain hose
Thermal insulator for refrigerant pipe
(Local supply) Thermal insulator for
piping(Local supply)
Overlap with thermal
insulator for piping.
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