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Connecting the Refrigerant Pipe
Refrigerant oil
Torque wrench
Flare nut
Union
Cover side
10
E-
There are two refrigerant pipes of differing diameters:
◆ A smaller one for the liquid refrigerant
◆ A larger one for the gas refrigerant
◆ The inside of copper pipe must be clean & has no dust.
1
Before connecting the reprigerant pipe, open the cover side.
2
Remove the pinch pipe 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.
Spanner
N N
N N
o o
o o
t t
t t
e e
e e
3
Must use insulator which is thick enough to cover the refrigerant pipe to
protect the condensate water on the outside of pipe falling onto the floor
and the efficiency of the unit will be better.
4
Be sure that there must be no crack or wave on the bended area.
5
It would be necessary to double the insulation thickness(10mm or more)
to prevent condensation even on the insulator when if the installed area is
warm and humid.
Outer Diameter
Torque (kgf•cm)
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")
◆ If the pipes must be shortened refer to page 11.
140~170
250~280
380~420
440~480
990~1210
990~1210
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