Installation manual

[ II Restrictions ]
- 49 -
HWE10050 GB
(2) System that requires more than 16 BC controller ports or with multiple BC controllers <System with one outdoor
unit>
Unit: m [ft]
Operation Pipe sections Allowable length of pipes
Length Total pipe length A+B+C+D+E+a+b+c+d+e
+f
Refer to the restrictions on the total piping
length.(page 52)
Total pipe length from the out-
door unit to the farthest indoor
unit
A+C+E+f 165 [541] or less
(Equivalent length 190 [623] or less)
Between outdoor unit and BC
controller
A 110 [360] or less
Between BC controller and in-
door unit
B+d or C+D+e
or C+E+f
40 [131] or less
*1
*1. When the total piping length between the BC controller and indoor units (P250 model excluded) exceeds 40 m [131
ft], observe the restrictions on the vertical separation and piping length on the next page.
Height
differ-
ence
Between indoor
and outdoor
units
Outdoor unit
above in-
door unit
H 50 [164] or less
Outdoor unit
below in-
door unit
H' 40 [131] or less
Between indoor unit and BC
controller
h1 15 [49](10[32]) or less
*2
*2. When the capacity of the connected indoor units is P200 or above, use the figures in the parentheses as a reference.
Between indoor units h2 15 [49](10[32]) or less
*2
Between the BC controller
(main or sub) and the sub BC
controller
h3 15 [49] or less
Branch joint
(CMY-Y202-G2)
(CMY-Y102L-G2)
(CMY-Y102S-G2)
Branch joint
( CMY-Y102S-G2)
a
C
b
HH'
h1
h1
B
c
d
f
h3
D
E
A
e
h1
h2
Outdoor unit
BC controller (main)
BC controller (sub)
BC controller (sub)
Indoor Indoor Indoor Indoor
Indoor
Indoor
Reducer (P15 - P50 models)
(Supplied with the BC Controller)
(P15 - P80 models) (P100 - P250 models)
Maximum of 3 units per port
Total capacity of P80 or below
Junction pipe
(CMY-R160-J1)