Connecting The Indoor Unit Assembly Piping - Samsung HH105ECM Installation Manual

Connecting the indoor unit assembly piping

There are two refrigerant pipes of different diameters:
◆ A smaller one(9.52mm, 3/8") for the liquid refrigerant
◆ A larger one(19.05mm, 3/4") for the gas refrigerant
◆ The thickness of tube should not less than 1.0mm.
◆ The inside of copper tube must be clean & has no dust.
The connection procedure for the refrigerant pipes varies according to
the exit position of the pipes from the indoor unit, as seen when facing
the indoor in the "A" side.
◆ Liquid refrigerant port
◆ Gas refrigerant port
◆ Drain hose connection port
◆ Drain pump hose connection port
1 Remove the protection caps on the pipes and connect the assembly
pipes to each pipe, tightening the nuts, first manually and then with a
torque wrench, a spanner applying the following torque.
Outer Diameter
9.52 mm (3/8")
19.05 mm (3/4")
◆ If the pipes must be shortened refer to page 10.
N N N N o o o o t t t t e e e e
2 Must use insulator which is thick enough to cover the refrigerant tube to
protect the condensate water on the outside of pipe falling onto the floor
and the efficiency of the unit will be better.
3 Cut off any excess foam insulation.
4 Be sure that there must be no crack or wave on the bended area.
It would be necessary to double the insulation thickness (10mm or more)
5
to prevent condensation even on the insulator when if the installed area is
warm and humid.
6 Shape an oil trap as shown in figure the oil trap must be formed every
level difference of 10m.
Torque (kgf•cm)
250~280
990~1210
A
Drain pump hose
connection port
Gas refrigerant port
Liquid refrigerant
port
Drain hose
connection port
a. When the indoor unit is above the outdoor
unit
Indoor unit
Outdoor unit
b. When the outdoor unit is above the indoor
unit
Outdoor unit
Oil trap(suction tube)
Indoor unit
9
E-