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[ II Restrictions ]
[8] Restrictions on Pipe Length
(1) System that requires 16 BC controller ports or fewer <System with only the main BC controller or standard BC con-
troller>
Outdoor unit
H
H'
h1
L
e
n
g
h t
T
t o
l a
p
Total pipe length from the outdoor unit
to the farthest indoor unit
Between outdoor unit and BC control-
ler
B
e
w t
e
Height
difference Between indoor
and outdoor units
Between indoor unit and BC controller
B
e
w t
e
*1. When the overall pipe length between the BC controller and the farthest indoor unit exceeds 40m [131ft], observe the
restrictions in the figure titled "Restrictions on pipe length" below. (Except the P250 models)
*2. When the capacity of the connected indoor units is P200 or above, use the figures in the parentheses as a reference.
1) Do not connect the P200 or P250 models of indoor units and other models of indoor units at the same port.
2) All the units that are connected to the same ports can only be operated in the same operation mode (cooling/heating).
HWE07130
Reducer (P15 - P50 models)
(Supplied with the BC Controller)
a
Junction pipe
(CMY-R160-J)
n I
o d
r o
(P15 - P140 models)
O
p
r e
t a
o i
n
p i
e
e l
n
g
h t
e
n
B
C
c
o
n
r t
l l o
r e
a
n
d
n i
d
o
r o
Outdoor unit
above indoor unit
Outdoor unit be-
low indoor unit
e
n
n i
d
o
r o
u
n
s t i
*Use a main BC controller when connecting the outdoor units of
A
(E)P400 model or above.
BC controller
Branch joint
(CMY-Y102S-G2)
B
b
n I
o d
r o
Maximum of 3 units per port
(P200 - P250 models)
Total capacity of P140 or below
P
p i
e
s
e
t c
o i
n
s
A
+
B
+
a
+
b
+
c
+
d
A+B+d
A
u
n
t i
B
+
d
H
' H
h1
h
2
- 43 -
Indoor
d
h2
c
n I
o d
r o
A
o l l
w
a
b
e l
e l
n
g
h t
R
f e
r e
o t
the restrictions on the total piping
length in the graph on the next page.
165 [541] or less
(Equivalent length 190 [623] or less)
1
1
0
3 [
6
] 0
r o
4
0
1 [
3
] 1
r o
e l
5
0
1 [
6
] 4
r o
4
0
1 [
3
] 1
r o
15[49](10[32]) or less
1
5
4 [
] 9
1 (
0
3 [
2
) ]
r o
Unit: m [ft]
f o
p
p i
e
s
e l
s s
*1
s s
e l
s s
e l
s s
*2
*2
e l
s s
GB
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