Connecting the Indoor Unit Assembly Piping
ENGLISH
E-
19
There are two refrigerant pipes of differing 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
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.
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.
1
2
Cut off any excess foam insulation.
3
Be sure that there must be no crack or wave on the bended area.
4
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.
5
Shape an oil trap as shown in figure the oil trap must be formed every
level difference of 10m.
6
◆
If the pipes must be shortened refer to page 18.
N
N
N
N
o
o
o
o
tt
tt
e
e
e
e
Outer Diameter
Torque
9.52 mm (3/8")
250~280 kgf•cm
19.05 mm (3/4")
990~1210 kgf•cm
Indoor unit
Outdoor unit
Oil trap (Must be install
every 10m)
a. When the indoor unit is above the outdoor
unit
Radius
5cm
Oil trap
(suction tube)
Outdoor unit
Indoor unit
b. When the outdoor unit is above the indoor
unit
Oil trap(Must be installed
every 10m)
Drain hose connection port
Liquid
refrigerant port
A
Gas refrigerant port
Summary of Contents for DH60 T Series
Page 44: ......
