32
Cutting or extending the pipe
Outer Diameter
Torque (kgf•cm)
ø6.35 mm
140~170
ø9.52 mm
250~280
ø12.70 mm
380~420
ø15.88 mm
440~480
ø19.05 mm
990~1210
ø22.23 mm
990~1210
Indoor outlet pipe
Connecting pipe
Flare nut
Wall
Indoor unit
Drain hose
The drain hose must NOT
slant upwards.
The end of the drain hose must NOT
be placed under water.
The drain hose must not
be bent.
Keep a clearance of at least
5cm between the end of the
drain hose and the ground.
5cm
less
Do not place the end of the
drain hose in a hollow.
Ditch
5. Check if you flared the pipe correctly (see examples of incorrectly flared pipes below).
6. Align the pipes to connect them easily. Tighten the flare nuts first with your hands, and then with a torque wrench,
applying the following torque:
7. For further details on how to connect to the outdoor unit and purge the air, refer to page 34~36.
Correct
Uneven
Thickness
Cracked
Damaged
Surface
Inclined
• Excessive torque can be cause of gas leakage. In case brazing the pipe, the nitrogen gas must be blown into the
pipe (50 Pa). The joint must be accessible and serviceable.
• Tighten the flare nut with torque wrench according to specified method.
If the flare nut is over-tightened, the flare may break and cause refrigerant gas leakage.
Installing and connecting the drain hose of the indoor unit
When installing the drain hose for the indoor unit, check if condensation draining is adequate.
When passing the drain hose through the 65-mm hole drilled in the wall, check the followings:
Boracay EUR_AQ09T&U@_IBIM_32447A_E.indd 32
2011-3-19 10:08:16
