Installing And Connecting The Assembly Pipe Of The Indoor Unit - Samsung AR7000 Manual

Installing and connecting the assembly pipe of the indoor unit

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 operating 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:
A short pipe is already fitted to the air conditioner. You may
need to 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:
1. Cut out the appropriate knock-out piece (A, B, C) 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:
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 3.94inch(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 evacuate the air, refer to page 49~51.
refer to page 53 for further details.
If the flare nut is over-tightened, the flare may break and cause refrigerant gas leakage.
All refrigerant pipe connection must be easy accessible and serviceable.
AR7000 CV HP_IB&IM_DB68-05637A-00_EN.indd 44
A
C
Outer
Diameter
ø1/4 inch
(ø6.35mm)
ø3/8 inch
(ø9.52mm)
ø1/2 inch
(ø12.70 mm)
ø5/8 inch
(ø15.88mm)
English-44
B
Torque
f
10.1~13.0
14~18
(140~180)
25.3~31.1
34~42
(350~430)
36.2~44.8
49~61
(500~620)
49.9~60.0
68~82
(690~830)
2015/10/12 15:43:17