ENGLISH
4 REFRIGERANT PIPING
4.1 PIPING CONNECTION
The refrigerant piping can be connected to some one of 3
directions of the indoor unit: upper, rear or right side, when
facing the unit.
•
The positions of piping are shown in the figure
• Each direction has the prepared knockout hole as shown in
piping work sub-chapter.
• Cut the knockout hole for the required direction.
Liquid piping
Gas Piping
Drain Piping
Drain Piping
4.1.1
Piping work installation
Piping work should be performed from the bottom side of the
unit. Remove the air inlet grille before beginning the piping work,
according to the following steps:
1
Slide the Knobs to the rear side.
Knob
Slide
2
Open the air inlet grille
Air Inlet Grille
3
Push up and slide the air inlet grilles to the rear side.
Unit
Open
Air Inlet Grille
Push
Rear Side
After select the piping direction proceeded to knockout selected
hole, install pipes and seal the piping with the factory supplied
insulation as indicated below.
Upper Side
1
Knockout hole
155
50
Open the Knockout hole
Liquid Piping
Gas Piping
Open the
Knockout hole
2
Seal piping
A
B
Sealing Plate
M4 screw
Refrigerant Liquid Piping
Sealing Plate
Sealing with insulation
Rear Side
1
Knockout hole
2
Seal Piping
83
54
38
95
125
*145
P
Factory-Supplied Sealing Plate
(0.8x118x142 mm)
Refrigerant Liquid Piping
M4 Screw
Sealing
Plate
M4 Screw
Knockout
Refrigerant Gas Piping
Seal with
insulation-
4.1.2
Size of piping connection
Piping size
Model RPC-(3.0 - 6.0)FSN3E
Gas Piping
15.88 (5/8)
Liquid Piping
9.52 (3/8)
REFRIGERANT PIPING
PMML0320A rev.4 - 08/2016
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