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Mitsubishi Electric PUHY-RP-Y(S)JM-B Data Book page 229

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3. Piping Design
3-1-5. Pipe diameter compatibility table
(1) Main pipe
O
u
d t
o
r o
m
o
d
l e
Liquid
ø9.52
(45m or shorter) (30m or shorter)
ø12.7
ø15.88
ø19.05
ø22.2
Gas
ø15.88
ø19.05
ø22.2
ø25.4
ø28.58
ø34.93
ø41.28
O
u
d t
o
r o
m
o
d
l e
Liquid
ø9.52
ø12.7
ø15.88
(50m or shorter) (45m or shorter) (40m or shorter) (35m or shorter)
ø19.05
ø22.2
Gas
ø15.88
ø19.05
ø22.2
ø25.4
ø28.58
ø34.93
ø41.28
(2) Indoor pipe
n I
d
o
r o
m
o
d
l e
Liquid
ø6.35
ø9.52
ø12.7
ø15.88
Gas
ø12.7
ø15.88
ø19.05
ø22.2
ø25.4
ø28.58
n I
d
o
r o
m
o
d
l e
Liquid
ø6.35
ø9.52
ø12.7
ø15.88
Gas
ø12.7
ø15.88
ø19.05
ø22.2
ø25.4
ø28.58
(3) Joint pipe
n I
d
o
r o
m
o
d
l e
Liquid
ø9.52
ø12.7
ø15.88
ø19.05
ø22.2
Gas
ø15.88
ø19.05
ø22.2
ø25.4
ø28.58
ø34.93
ø41.28
Note
1) The
in the table indicates that the existing piping system can be reused if the total amount of refrigerant charge in the existing system is less than the specified amount calculated
by using the following formulas:
PUHY-RP200-250YJM-B : 0.39
PUHY-RP300-900YJM-B : 0.39
L0 : Total length of ø22.2 liquid pipe(m)
L1 : Total length of ø19.05 liquid pipe(m)
L2 : Total length of ø15.88 liquid pipe(m)
L3 : Total length of ø12.7 liquid pipe(m)
L4 : Total length of ø9.52 liquid pipe(m)
L5 : Total length of ø6.35 liquid pipe(m)
2
0
0
2
5
0
3
0
0
3
5
(25m or shorter)
(65m or shorter) (50m or shorter) (40m or shorter) (35m or shorter) (30m or shorter)
7
5
0
8
0
0
8
5
0
9
0
1
5
2
0
2
5
3
2
1
4
0
2
0
0
2
5
0
(25m or shorter) (15m or shorter)
8 -
0
1 -
4
0
1 -
6
0
2 -
0
(15m or shorter) (15m or shorter) (10m or shorter) (10m or shorter)
L0+0.29
L1+0.2
L2+0.12
L3+0.06
L0+0.29
L1+0.2
L2+0.12
L3+0.06
SYSTEM DESIGN
Standard
Usable (Unit performance will be affected.)
Usable (Vertical separation between OU and IU to be 20 m or less)
Usable (Piping length limitation will apply.)
Usable (Refrigerant charge amount limit will apply.)
Not use
0
4
0
0
4
5
0
5
0
0
0
4
0
5
0
6
3
(30m or shorter) (20m or shorter)
0
3 -
0
0
3 -
3
0
4 -
0
0
(30m or shorter)
L4<18
L4<25
5
5
0
6
0
0
6
5
0
7
0
(70m or shorter) (60m or shorter)
(55m or shorter)
7
1
8
0
1
0
0
1
2
6 -
3
0
6 -
5
0
8 -
0
0
8
0
(30m or shorter)
0
5
- 1
226

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