Combination of Condensing Units
SiUS30-1301
12
General Information
4. Combination of Condensing Units
Note:
A condensing unit multi-connection piping kit (option) is necessary for multiple connections of 12 ton systems and above.
5. Capacity Range
Combination ratio
Connection capacity: 50
%
- 130
%
Indoor unit connection capacity
Note:
*1 An condensing unit multi connection piping kit (option) is necessary for multiple connections of 12 ton systems
and above.
*2 Total capacity index of connectable indoor units must be 50
%
-130
%
of the capacity index of the condensing
units.
For indoor units used for cooling only (do not connect to Branch Selector unit when using for heat recovery),
total capacity index must be 50
%
or less than the capacity index of the condensing units.
Limitation of capacity index for heat recovery
System
Capacity
Number of
Units
Module
Condensing unit multi connection piping kit
(option)
6 ton
7 ton
6 ton
1
—
7 ton
1
12 ton
2
Heat pump: BHFP22MA56U
Heat recovery: BHFP26MA56U
14 ton
2
18 ton
3
Heat pump: BHFP22MA84U
Heat recovery: BHFP26MA84U
21 ton
3
Combination ratio =
Total capacity index of the indoor units
Capacity index of the condensing units
Type
Ton
Capacity
index
Model name
Combination
Condensing unit
multi connection
piping kit *1
Total capacity index of
connectable indoor
units *2
Maximum
number of
connectable
indoor units
Maximum
number of
connectable
Branch
Selector
units
Combination (
%
)
50
%
100
%
130
%
Single
condensin
g units
6
72
RWEYQ72P
RWEYQ72P
—
36
72 93.5
12
12
7
84
RWEYQ84P
RWEYQ84P
42
84 109
14
14
Double
condensin
g units
12
144
RWEYQ144P
RW
RWEYQ72P
Heat pump:
BHFP22MA56U
Heat recovery:
BHFP26MA56U
72
144 187
20
20
14
168
RWEYQ168P
RW
RWEYQ84P
84
168 218
20
20
Triple
condensin
g units
18
216
RWEYQ216P
RW
RW
RWEYQ72P
Heat pump:
BHFP22MA84U
Heat recovery:
BHFP26MA84U
108
216 280
22
22
21
252
RWEYQ252P
RW
RW
RWEYQ84P
126
252 327.5
32
32
Heat recovery
V
R
V
-
W
III
u
nit
S
u
ction gas piping
Li
qu
id piping
Indoor
u
nit
(Heating)
Indoor
u
nit
(Cooling)
Indoor
u
nit*
(Cooling only)
High and lo
w
press
u
re gas piping
* For indoor
u
nits
u
sed for cooling only (do not connect to Branch Selector
u
nit
w
hen
u
sing for heat
reco
v
ery), total capacity index m
u
st
b
e 50% or less than the capacity index of the condensing
u
nits.
Branch
Selector
u
nit
Branch
Selector
u
nit