Mitsubishi Electric Mr. SLIM MSZ-FA25VA Technical Manual página 668

Esquemas frigorífi cos
8-1. PIPE LENGTH
8-1-1. 1:1 SYSTEM
Pipe length
<Table 1> Maximum pipe length
Liquid
OD
pipe
Thickness
(mm)
Gas
OD ø12.7
pipe
Thickness t0.8
(mm)
Standard size
P100
Standard size
P125,P140
8-1-2. TWIN AND TRIPLE SYSTEM
(1) TWIN SYSTEM
<Table 2> Maximum pipe length
Main pipe
Liquid pipe ø9.52
(mm)
ø15.88
Gas pipe
[A]
Standard size
Liquid pipe
ø6.35
50m
Gas pipe ø12.7
[20m]
Branch
Liquid pipe
ø9.52
pipe
50m
(mm)
Gas pipe
ø15.88
[20m]
[B, C]
Liquid pipe
ø12.7
Gas pipe
ø19.05
Indoor unit
B
Distribution pipe
<TWIN SYSTEM>
Total length A + B + C
P100-140: 50 m
668
ø9.52 ø12.7
t0.8 t0.8
ø15.88 ø19.05 ø15.88
t1.0 t1.0 t1.0
50m 50m 25m
[20m] [20m] [10m]
50m 50m 30m
[30m] [30m] [10m]
P100(RP50o2) P125(RP60o2) • P140(RP71o2)
ø9.52 ø12.7 ø9.52 ø9.52
ø19.05 ø19.05 ø15.88 ø19.05
50m 25m
[20m] [10m]
Standard size
50m 25m 50m 50m
[20m] [10m] [30m] [30m]
Indoor unit side
Indoor unit
C
Outdoor unit
Outdoor unit side
A
<Marks in the table>
ø19.05
t1.0
25m
[10m]
50m
[30m]
30m
[10m]
(2) TRIPLE SYSTEM
<Table 3> Maximum pipe length
Main pipe
ø12.7
Liquid pipe
(mm)
ø19.05
[A] Gas pipe
Liquid pipe
Gas pipe
Branch
Liquid pipe
pipe
30m
(mm)
Gas pipe
[10m]
[B, C, D]
Liquid pipe
Gas pipe
Indoor unit
Distribution pipe
: It can be used.
: Cooling capacity is lowered.
: Additional refrigerant charge is required when
the pipe length exceeds 10m.
The maximum pipe length
Charge-less pipe length
P140(RP50o2)
ø9.52 ø9.52 ø12.7
ø15.88 ø19.05 ø19.05
Standard size
ø6.35
50m 50m 30m
ø12.7
[30m] [30m] [10m]
ø9.52
50m 50m 30m
ø15.88
[30m] [30m] [10m]
ø12.7
ø19.05
Indoor unit side
Indoor unit
B
C
D
Indoor unit
Outdoor unit side
A
<TRIPLE SYSTEM>
Total length A + B + C + D
P140: 50 m
Outdoor unit