English-40
Cutting or extending the pipe
Indoor outlet pipe
Connecting pipe
Flare nut
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 evacuate the air, refer to page 43~44.
Correct
Uneven
Thickness
Cracked
Damaged
Surface
Inclined
• Excessive torque can be cause of gas leakage. If extending pipe by welding/brazing please ensure nitrogen is used
during welding/brazing process. 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.
Outer Diameter
Torque
N•m
kgf•cm
ø6.35 mm
14~18
140~180
ø9.52 mm
34~42
350~430
ø12.70 mm
49~61
500~620
ø15.88 mm
68~82
690~830
Installing and connecting the drain hose of the indoor unit
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.
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:
RC_BORACAY_IB&IM_EN_DB68-05679A-00.indd 40
2/1/2016 2:19:18 PM