E-
12
Connecting the Refrigerant Pipe
◆
If the pipes must be shortened refer to page 13.
N
N
N
N
o
o
o
o
tt
tt
e
e
e
e
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
4
Cut off any excess foam insulation.
5
If necessary, bend the pipe round, along the bottom of the indoor unit and
out through the appropriate hole, taking care to ensure that:
◆
The piping does not jut out from the rear of the indoor unit
◆
The bending radius is 100 mm or more
6
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.
There are two refrigerant pipes of different diameters:
◆
A smaller one for the liquid refrigerant
◆
A larger one for the gas refrigerant
A short length of piping is already fitted to the air conditioner. You
must extend this piping using assembly piping (optionally supplied).
The connection procedure for the refrigerant piping varies according
to the exit position of the piping from the indoor unit, as seen when
facing the air conditioner in position on the wall:
◆
Right (A)
◆
Left (B)
◆
Underside (C) ;
✴✴
052/070/072
✴✴
◆
Rear
1
With a knife, cut out the appropriate knock-out piece on the rear of the
indoor unit (unless you are connecting directly from the rear).
2
Smooth the cut edges.
3
Remove the protection caps on the pipes and connect the assembly piping
to each pipe, tightening the nuts, first manually and then with a wrench,
applying the following torque.
A
B
C
