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For bottom side piping
a
b
Cabinet
Securing plate
Use the refrigerant pipe after putting
this part into the straight position
For installing securing plate (only 2.0 to 4.0 HP)
Bend the pipe, place it in the bottom space on the rear side of
the unit and secure the pipe to the securing plate with band
(field-supplied).
Make sure to cut off the unnecessary part of
band (field-supplied). (It may cause abnormal
noise or condensate dripping).
Band (Field-supplied)
Securing plate
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N O T E
Make sure to seal a hole in the wall completely in order to prevent
rainwater and outdoor air from entering. When using putty for sealing,
avoid contact with the wall since it may result in oil stain.
Indoor
Outdoor
Wall
Sealing
Sealing
Pipe
Unit: mm
HP
Dimension
0.4 to 1.0
1.5
2.0
2.5 to 4.0
Liquid Piping Gas Piping Liquid Piping Gas Piping Liquid Piping Gas Piping Liquid Piping Gas Piping
a
450
395
450
395
410
350
410
350
b
107
107
107
107
120
120
120
120
c
343
288
343
288
290
230
290
230
14 REFRIGERANT PIPING WORK
For the refrigerant piping work, vacuum pump and refrigerant charge, the details shall be referred to “Installation and Operation
Manual ” of the outdoor unit.
?
N O T E
For RPK-(0.4-1.5)FSRHM
• The optional expansion valve kit is required for the refrigerant piping work. Refer to the “Installation and Operation Manual of the Expansion Valve
Kit” for refrigerant piping procedures, pipe sizes, additional refrigerant charge and the number of connectable units.
• The temperature of the liquid piping between the expansion valve kit and the indoor units becomes lower than the standard indoor units. Additional
insulation work should be required for the liquid piping depending on the operating conditions.
Refrigerant Piping Work
PMML0552 rev.1 - 02/2021 - A10635790A
15
ENGLISH