Refrigerant Piping - Samsung AFPCC052CA0 Installation Manual

Refrigerant Piping

The refrigerant pipe can be connected from the bottom or front of the
outdoor unit. You have to use seamless copper pipe for the piping and check
the length and height difference between indoor and outdoor unit.
You should also check the pipe length after installing the refnet joint.
For maximum allowable pipe length and height difference,
refer to page 16.
1 Connect the refrigerant pipe to each pipe, tightening the nuts, first manually
and then with a wrench, a spanner applying the following torque.
Outer Diameter
6.35 mm (1/4")
9.52 mm (3/8")
12.70 mm (1/2")
15.88 mm (5/8")
19.05 mm (3/4")
22.23 mm (7/8")
N N N N o o o o t t t t e e e e Make a distinction between liquid refrigerant pipe and gas
refrigerant pipe.
Liquid
Bend the pipe or use
the elbow.
2 If necessary, install the refnet joint horizontally or vertically ; for choice of the
refnet joint, refer to page 6.
N N o o t t e e The refnet joint should be installed within 15° or less from the
N N o o t t e e
horizontal/vertical line.
When you install the refnet joint vertically, the inlet of a joint
(Part A) should face downwards.
3 Fix the refnet joint insulation to the refnet joint as shown at figure.
Torque
7 3
144~176kgf•cm( ~
10 12
16 4
1 7
333~407kgf•cm( ~
24 29
16 16
504~616kgf•cm( 7 ~ 9
36 44
16 16
9 11
630~770kgf•cm( ~
45 55
16 16
990~1210kgf•cm( 5 ~ 1
71 87
8 2
990~1210kgf•cm( 5 ~ 1
71 87
8 2
Gas
Cut off the gas piping and
use the elbow.
From the Front
ft•lb)
Remove the stop valve cover before connecting
ft•lb)
From the bottom
ft•lb)
ft•lb)
ft•lb)
ft•lb)
Gas refrigerant
Flange
Gas refrigerant pipe
Liquid refrigerant pipe
Flare nut
Flange
pipe
30°
Horizontal
Vertical
Cable-tie
30°
17
E-