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PIPING WORK AND REFRIGERANT CHARGE
8.3 PIPE CONNECTION
Cover the end of the pipe appropriately when it is to be inserted
through holes in walls and roofs, etc.
Keep the ends of the pipes covered while other installation work
is being carried out to avoid the entry of dampness or dirt.
Do not place the pipes directly on the ground without appropriate
protection or adhesive vinyl tape to cover the ends.
Where the pipe installation is not completed for a certain amount
oxygen-free nitrogen gas through a Schrader valve to avoid the
accumulation of humidity and/or contamination through dirt.
8.3.1
Accessory
Connection for
Refrigerant Low
Pressure Gas Pipe
Connection for
Refrigerant High /
Accessory
Low Pressure Gas
Pipe
Pipe
Connection for
Refrigerant Liquid
Pipe
For Fixing Power
Cord Clamp
Source Wire
For Power Source
Wire Outlet (Bottom
Base, Piping Cover)
For Transmission
Rubber Bush
Wire Outlet (Bottom
Base, Piping Cover)
For Control Wire
Outlet (Bottom Base,
Piping Cover)
Screw
Combination
For Indication of
Unit Model
Combination Unit
Label
Model
N O T E
26
PMML0479 rev.2 - 02/2018
8HP
10HP
12HP
-
ID22.2
ID22.2
-
ID22.2
ID22.2
-
-
OD9.52
×2
×2
×2
×2
×2
×2
×2
×2
×2
×3
×3
×3
N O T E
Do not use insulating material that contains NH
it could damage the copper in the pipe and subsequently cause
leaks.
appropriately insulated to avoid decreases in capacity in line with
to environmental conditions and dew on the surface of the piping
due to low pressure.
14HP
16HP
18HP
-
ID25.4
ID25.4
-
-
-
-
-
OD12.7
×2
×2
×2
×2
×2
×2
×2
×2
×2
×3
×3
×3
(ammonium), as
3
20HP
22HP
24HP
-
-
-
-
ID22.2
ID22.2
-
-
-
×2
×2
×2
×2
×2
×2
×2
×2
×2
×3
×3
×3
Remarks
Ø70
Ø62
Ø38
for Fixing Cord
Clamp and
Spare
Attach to
Outdoor Unit A
(Main Unit)
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