User Manual

English-44
Cutting or extending the pipe
Indoor outlet pipe Connecting pipe
Flare nut
5. Check if you ared the pipe correctly (see examples of incorrectly ared pipes below).
6. Align the pipes to connect them easily. Tighten the are nuts rst 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 47~49.
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arenutwithtorquewrenchaccordingtospeciedmethod.
If the are nut is over-tightened, the are 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
The drain hose must NOT
slant upwards.
The end of the drain hose
must NOT be placed under
water.
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:
Wall
Indoor unit
Drain hose
The drain hose must not
be bent.
• The holder system is detachable as shown.
Holder system
(detachable)
MG_GOOD_R-410A_A3050_IB&IM_EN_DB68-04540A.indd 44 9/1/2014 5:12:00 PM