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Applicable Extension Pipe For Each Model - Mitsubishi Electric PLA-RP·BA(2) Technical Data Book

Split-type, heat pump air conditioners.
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8

APPLICABLE EXTENSION PIPE FOR EACH MODEL

8-1. PIPE LENGTH
8-1-1. 1:1 SYSTEM
Pipe length
<Table 1> Maximum pipe length
OD
9.52
Liquid
pipe
Thickness
t0.8
(mm)
OD
12.7
15.88
Gas
pipe
Thickness
t0.8
t1.0
(mm)
Standard size
HRP71~125
50m
[30m]
The maximum length is 75m in case of new pipes.
8-1-2. TWIN SYSTEM
(1) TWIN SYSTEM
<Table 2> Maximum pipe length
HRP71(RP35 2)
Main pipe
Liquid pipe
6.35
(mm)
12.7
Gas pipe
[A]
Liquid pipe
6.35
Gas pipe
12.7
Branch
Liquid pipe
9.52
pipe
(mm)
Gas pipe
15.88
[B, C]
Liquid pipe
9.52
Gas pipe
19.05
The maximum length is 75m in case of new pipes.
Indoor unit
B
Distribution pipe
<TWIN SYSTEM>
Total length A + B + C
Max. 75 m
Height difference
H(Indoor unit-Outdoor unit) Max. 30m
h(Indoor unit-Indoor unit)
Distance between indoor and indoor units
Pipe length |B-C|
Max. 8m
Number of bends (one way)
Max. 15 (Max. 8 points between main pipe A and each branch pipe(B, C))
12.7
t0.8
19.05
19.05
15.88
t1.0
t1.0
t1.0
50m
50m
50m
[30m]
[20m]
[20m]
HRP100(RP50 2)
9.52
9.52
9.52
12.7
15.88
15.88
19.05
19.05
Standard size
Standard size
50m
50m
50m
50m
[30m]
[30m]
[30m]
[20m]
50m
50m
50m
50m
[30m]
[30m]
[30m]
[20m]
Indoor unit side
Indoor unit
C
Outdoor unit
Outdoor unit side
A
Max. 1m
<Marks in the table>
: It can be used.
: Additional refrigerant charge is required when
the pipe length exceeds 20m.
The maximum pipe length
50m
Charge-less pipe length
[30m]
HRP125(RP60 2)
9.52
9.52
12.7
15.88
19.05
19.05
Standard size
50m
50m
50m
[30m]
[30m]
[20m]
32

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