Installing And Connecting The Assembly Pipe Of The Indoor Unit - Samsung AQ18F Series Instruction Manual

I A
NSTALLING THE IR CONDTIONER

Installing and Connecting the Assembly Pipe of the Indoor Unit

A
C
10
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08'FORTE_IM_28592A_E.indd 10
Connect indoor and outdoor units with field-supplied copper pipes by means
of flare connections. Use insulated seamless refrigeration grade pipe only, (Cu
DHP type according to ISO1337), degreased and deoxidized, suitable for op-
erating pressures of at least 4200 kPa and for burst pressure of at least 20700
kPa. Under no circumstances must sanitary type copper pipe be used.
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 may need to extend the
pipe using the assembly pipe. (optional)
B
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
6.35 mm
9.52 mm
12.70 mm
15.88 mm
19.05 mm
22.23 mm
 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 to fit along the bottom of the indoor unit.
Then pull it out through the appropriate hole.
 The pipe should not project from the rear of the indoor unit.
 The bending radius should be 100 mm or more.
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 15.
 The pipe will be insulated and fixed permanently into position after
finishing the installation and the gas leak test; refer to page 17 for
further details.
 DO NOT WALL UP THE PIPE CONNECTION !
All refrigerant pipe connection must be easy accessible and serviceable.
Torque (kgf•cm)
140~170
250~280
380~420
440~480
990~1210
990~1210
2007-12-14 9:55:03