E-10
There are 2 refrigerant pipes of different diameters:
◆ The smaller one is for the liquid refrigerant
◆ The larger one is for the gas refrigerant
A short pipe is already fitted to the air conditioner. You must extend
the pipe using the assembly pipe. (Optional)
The connection procedure for the refrigerant pipe varies according to
the exit position of the pipe when facing the wall:
◆ Right (A)
◆ Left (B)
◆ Underside (C)
◆ Rear
1 Cut out the appropriate knock-out piece on the rear of the indoor unit
unless you connect the pipe directly from the rear.
2 Smooth the cut edges.
3 Remove the protection caps of the pipes and connect the assembly
pipe to each pipe. Tighten the nuts first with your hands, and then with
a torque wrench applying the following torque.
Outer Diameter Torque (kgf•cm)
6.35 mm 140~170
12.70 mm 380~420
15.88 mm 440~480
➢ If you want to shorten or extend pipes, refer to page 11.
4 Cut off the remaining foam insulation.
5 If necessary, bend the pipe round along the bottom of the indoor unit.
Then pull it out through the appropriate hole.
◆ The pipe should not be projected from the rear of the indoor unit.
◆ The bending radius should be more than 100mm.
6 Pass the pipe through the hole in the wall.
7 For further details on how to connect to the outdoor unit and purge the
air, refer to page 12.
➢ The pipe will be insulated and fixed permanently into position
after finishing the installation and the gas leak test; refer to
page 13 for further details.
Installing and Connecting the Assembly Pipe of the Indoor Unit
I
NSTALLING THE
A
IR CONDITIONER
A
B
C
AQT18WJWB IM_E_20227 10/25/04 1:34 PM Page 10
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