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Flaring Work and Connection of Piping
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.
Connecting the pipes to the Outdoor unit
• Align the center of the piping and sufficiently
tighten the flare nut by hand.
• Finally, tighten the flare nut with torque wrench
until the wrench clicks.
- When tightening the flare nut with torque
wrench, ensure the direction for tightening
follows the arrow on the wrench.
Outside diameter
mm
Ø6.35
Ø9.52
Ø12.7
Ø15.88
Ø19.05
20 Air Conditioner
Torque
kgf . m(lbf·ft)
inch
1/4
1.8~2.5(13~18)
3/8
3.4~4.2(24~30)
1/2
5.5~6.6(40~48)
5/8
6.3~8.2(46~59)
3/4
9.9~12.1(72~88)
Torque
kgf . m(lbf·ft)
inch
1/4
1.8~2.5(13~18)
3/8
3.4~4.2(24~30)
1/2
5.5~6.6(40~48)
5/8
6.3~8.2(46~59)
3/4
9.9~12.1(72~88)
Indoor unit tubing
Torque wrench
Indoor unit tubing
Drain pipe
Adhesive
❈ When tighten the pipe, hold the haxagonal
body.
Flare nut
Pipings
Spanner (fixed)
Flare nut
Connection pipe
Indoor unit drain hose
Vinyl tape(narrow)
Continuous
Torque
wrench
(250mm )
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