E-
10
Connecting the refrigerant pipe
There are two refrigerant pipes of different diameters:
A smaller one for the liquid refrigerant
A larger one for the gas refrigerant
The thickness of tube should not be less than
0.039inch(1mm).
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
1
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.
Outer Diameter
Torque (
ft.lb
)
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”)
13.2
31.0
40.6
48.0
73.6
Note
If the pipes must be shortened refer to page 11.
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.
5
It would be necessary to double the insulation thickness
(0.393inch(10mm)
or
more)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 fomed every level
difference of
32.8ft(10m)
.
Drain hose connection port
Liquid refrigerant port
Gas refrigerant
port
A
a. When the indoor unit is above the outdoor unit
Indoor unit
Oil trap (Must be installed
every
32.8ft(10m))
Outdoor unit
b. When the outdoor unit is above the indoor unit
Outdoor unit
Oil trap
(Must be installed
every
32.8ft(10m))
Oil trap
(suction tube)
indoor unit
Radius
1.968inch
(50mm)
Air Marketing Group LLC
141 Kinderkamack Rd, Park Ridge, NJ 07656 Tel: 201-782-1782 Fax: 201-782-1783 Web: www.amgair.com Email: [email protected]