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3. Piping Design
3-2. Piping Design
3-2-1. Restrictions on pipe length
CMB-WP108V-GA1 + CMB-WP108V-GB1
(CMB-WP1016V-GA1) (CMB-WP1016V-GB1)
(A)
A
(H)
(B)
a
(D)
b
(D)
(A) Heat source unit
(B) Main-HBC controller
(C) Sub-HBC controller
(D) Indoor unit
(E) Less than H=50 m (when the heat source unit is higher than HBC)
(F) Less than H1=40 m (when the heat source unit is lower than HBC)
(G) Twinning pipe (field supply)
(H) Less than 110 m
(I) Less than 60 m
(J) Up to three units for 1 branch port
Total capacity: less than 80 (but in same mode, cooling/heating)
(K) Less than 15 m
(L) Less than 15 m
CMB-WP108V-GA1 + CMB-WP108V-GB1
(CMB-WP1016V-GA1) (CMB-WP1016V-GB1)
(A)
(B1)
A2
(H)
A1
B
(B2)
(G)
A3
a
(D)
b
(A) Heat source unit
(B1), (B2) Main-HBC controller
(C) Sub-HBC controller
Total indoor units capacity (B2)+(C): P375 or less
(D) Indoor unit
(E) Less than H=50 m (when the heat source unit is higher than HBC)
(F) Less than H1=40 m (when the heat source unit is lower than HBC)
(G) Twinning pipe (field supply)
(H) Less than 110 m
(I) Less than 60 m
(J) Up to three units for 1 branch port
Total capacity: less than 80 (but in same mode, cooling/heating)
(K) Less than 15 m
(L) Less than 15 m
(M) Less than 15 m
MEE15K052
(I)
(C)
f
(G)
c
g
d
e
(D)
(D)
(J)
(D)
(D)
(I)
(C)
f
(G)
c
g
d
e
(D)
(D)
(D)
(J)
(D)
Total indoor units capacity: P375 or less
Note: 1.
Indoor units that are connected to the same branch joint cannot be si-
multaneously operated in different operation modes.
Item
Between heat source unit and
HBC controller (refrigerant pipework)
Water pipework between indoor units
and HBC controller
Heat source unit above HBC
Between
HBC and
heat source units
Heat source unit below HBC
Between indoor units and HBC controller
B
e
w t
e
e
n
n i
d
o
r o
u
n
s t i
*1. Values in ( ) are applied when indoor total capacity exceeds 130% of heat source
unit capacity
Item
Between heat source unit and
HBC controller (refrigerant pipework)
Water pipework between indoor units
and HBC controller
B
e
w t
e
e
n
H
B
C
c
o
t n
o r
e l l
s r
Heat source unit above HBC
Between
HBC and
heat source units
Heat source unit below HBC
Between indoor units and HBC controller
B
e
w t
e
e
n
n i
d
o
r o
u
n
s t i
B
e
w t
e
e
n
H
B
C
c
o
t n
o r
e l l
s r
*1. Values in ( ) are applied when indoor total capacity exceeds 130% of heat source
unit capacity
(Unit: m)
Piping portion
Allowable value
A
110 or less
f + g
60 or less
H
50 or less
H1
40 or less
h1
15(10) or less*1
h
2
15(10) or less*1
(Unit: m)
Piping portion
Allowable value
A1 + A2 + A3
110 or less
f + g
60 or less
B
4
0
r o
e l
s s
H
50 or less
H1
40 or less
h1
15(10) or less*1
h
2
15(10) or less*1
15(10) or less*1
h
3
3 - 21
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