24
Drain Piping
● Bend the gas pipe at the flexible pipe part.
unit: mm
Model (HP)
a
b
c
d
0.8~1.3
101
390
289
15R
1.5~1.8
78
396
318
20R
2.0~2.5
76
431
355
25R
Fig. Tightening Work of Flare Nut
(3)
When tightening the flare nut, use two spanners as
shown below.
Thermal Insulation Pipe
An excess or a shortage of refrigerant is the
main cause of trouble to the units. Charge the
correct refrigerant quantity.
Pipe Diameter
Torque (N. m)
Φ
6.35
20
Φ
9
.
53
40
Φ
12.7
60
Φ
15.88
80
Fig. Tightening Work of Flare Nut
(4) Insulate the refrigerant pipes as shown below.
Fig. Insulation on pipes
(5)
Evacuation and refrigerant charging procedures should
be performed according to “Installation & Maintenance
Manual “ of the outdoor unit.
(6) Fix the plate of pipes (factory-supplied) as shown below.
17. Drain Piping
(1)
The standard direction of drain piping connection is right
side as viewed from the discharge grilles. However, it
can be performed from the left side or rear side.
unit: mm
Model (HP)
a
b
0.8~1.3
140
590
1.5~1.8
168
600
2.0~2.5
195
600
Fig. Direction of Drain Piping
(2) When the left-side drain pipe connection is performed,
remove the drain plug of left-side, and then attach this
plug to the right-side in order to change drain piping
connection from right-side to left-side.
(A)
Draw out the drain plug and drain pipe
(B)
Insert the drain plug and drain pipe
Contour of the Unit
For Right side Piping
Insulation
For Left Side Piping
For Rear Side Piping
d
Summary of Contents for RPK-0.8HNBUSQ
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