Samsung RVMC035EBM0, Installation Manual

Page: 16 / 36

Connecting the Refrigerant Pipe
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 15.
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 Torque (kgf•cm)
6.35 mm (1/4") 144~176
9.52 mm (3/8") 333~407
12.70 mm (1/2") 504~616
15.88 mm (5/8") 630~770
19.05 mm (3/4") 990~1210
22.23 mm (7/8") 990~1210
1
Install the refnet joint horizontally or vertically ; for choice of the refnet joint,
refer to page 6. 2
Fix the refnet joint insulation to the refnet joint as shown at figure. 3
◆
Make a distinction between liquid refrigerant pipe and gas
refrigerant pipe.
N N
N N
o o
o o
tt
tt
e e
e e
Liquid Gas
Bend the pipe or use
the elbow. Cut off the gas piping and
use the elbow.
"A"
"A"
15
15
Cable-tie
Refnet joint insulation
Refnet joint
Contact surface
From the Front
From the bottom
Flange
Gas refrigerant pipe
Filter
Liquid refrigerant pipe
Flange
Flare nut
Remove the stop valve cover before connecting
Gas refrigerant
pipe
E-
16
Installation of piping filter
◆
Install the piping filter in the liquid refrigerant pipe using flare nuts.
You should install the filter within 1m from the outdoor unit.
◆
Specifications of piping filter
- Size: 20µm
- Max applicable pressure: 40kgf/cm
2
- Types
1-way filter for cooling only model
2-way filter for heat pump model
Gas refrigerant pipe
Liquid refrigerant pipe
Outdoor
Unit