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DC Inverter Floor Ceiling Type Air Conditioner Installation and Operation Manual
11.5.2 Refrigerant Piping work
The refrigerant is R410A£¬GWP=2020 ODP=0.
The standard pipe length is 5m. When the length (L) of the connecting pipe is less than or equals 7m, there
is no need to add refrigerant. If the connecting pipe is longer than 7m, it is required to add refrigerant. In the
below table, the amounts of refrigerant to be added for different models are listed for each additional meter of
pipe length.
Select copper pipes for gas and liquid as informed in specific table (see the pipe table below).For dust and
moisture protection, before assembly of the pipe and its insulation, both ends of the pipe must be covered.
Item
Model
FSPI-091B FSOI-091B
FSPI-121B FSOI-121B
FSPI-181B FSOI-181B
FSPI-241B FSOI-241B
FSPI-301B FSOI-301B
FSPI-361B FSOI-361B
FSPI-451B FSOI-451B
FSPI-501B FSOI-501B
FSPI-361B FSOI-361B-3F
FSPI-451B FSOI-451B-3F
FSPI-501B FSOI-501B-3F
FSPI-601B FSOI-601B-3F
Table.10
Size of Fitting
Pipe
Max
(Inch)
Pipe
Length
Gas
Liquid
(m)
Pipe
Pipe
3/8
1/4
20
1/2
1/4
30
5/8
3/8
50
30
50
3/4
3/8
Fig.60
52
Max Height
Amount of
Difference
Additional
between
Refrigerant to
Indoor Unit
Be
and Outdoor
Filled (For Extra
Unit(m)
Length of Pipe)
15
30 g/m
15
30
60 g/m
15
30
Indoor Unit
Drainage Pipe
(Diameter
× Wall
Thickness)
(mm)
Φ17×1.75
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