Connecting Pipes
Installation Manual
11
ENGLISH
• 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.
❈
When tighten the pipe, hold the haxagonal
body.
mm
inch
kgf.m
Ø6.35
1/4
1.8~2.5
Ø9.52
3/8
3.4~4.2
Ø12.7
1/2
5.5~6.6
Ø15.88
5/8
6.3~8.2
Ø19.05
3/4
9.9~12.1
Outside diameter
Torque
Continuous
Torque
wrench
(250mm)
Torque
wrench
(250mm)
• Align the center of the pipings and sufficiently
tighten the flare nut by hand.
• Tighten the flare nut with a wrench.
• When extending the drain hose at the indoor
unit, install the drain pipe.
Indoor unit tubing
Flare nut
Pipings
Torque wrench
Indoor unit tubing
Spanner (fixed)
Connection pipe
Flare nut
mm
inch
kg.m
Ø6.35
1/4
1.8~2.5
Ø9.52
3/8
3.4~4.2
Ø12.7
1/2
5.5~6.6
Ø15.88
5/8
6.6~8.2
Ø19.05
3/4
9.9~12.1
Outside diameter
Torque
Vinyl tape(narrow)
Adhesive
Drain pipe
Indoor unit drain hose
Connecting the pipings to the indoor unit and drain hose to drain pipe
Connecting the pipes to the Outdoor unit
Summary of Contents for UU21WH
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