Mitsubishi Electric CITY MULTI CMB-P-NU-J2 Manuel D'installation page 13

1. Size of BC controller's end connection piping
[Fig. 5.2.2]
CMB-P104NU-J2
CMB-P106NU-J2
(MAIN)BC
CMB-P108NU-J2
CONTROLLER
CMB-P1012NU-J2
CMB-P1016NU-J2
SUB BC
No available
CONTROLLER
(E)P72 - 120
(E)P121 - 336
(E)P337 - 432
BC CONTROLLER / MAIN BC CONTROLLER
Unit model High pressure side*1 Low pressure side*1
PURY-(E)P72
ø15.88 [5/8]
(Brazing)
PQRY-P72
PURY-(E)P96
PQRY-P96
ø19.05 [3/4]
(Brazing)
PQRY-P120
PURY-(E)P120
PURY-(E)P144
PURY-(E)P168
ø22.2 [7/8]
PURY-(E)P192
(Brazing)
PQRY-P144
PQRY-P168
PQRY-P192
PURY-P216
PQRY-P216
ø22.2 [7/8]
PURY-EP216 (ø28.58 [1-1/8])*2
(Brazing)
PURY-(E)P240
PQRY-P240
PURY-(E)P264
PURY-(E)P288
PQRY-P288
PQRY-P312
ø28.58 [1-1/8]
PURY-(E)P312
(Brazing)
PURY-(E)P336
PURY-EP384
PURY-EP432
PQRY-P336
*1. Use separately sold parts if the pipe diameter is not appropriate.
*2. If the length of high-pressure pipe A exceeds 65 m (213 ft), use the
ø28.58 (ø1-1/8) pipes for all pipes after 65 m (213 ft).
A B
C
F
*2
D D
E
04-54 72-96
*1
A To outdoor unit (MAIN BC CONTROLLER)
B End connection (brazing)
C BC controller (MAIN BC CONTROLLER / SUB BC CONTROLLER)
D Indoor unit
E Less than 18
F Combined piping kit (Model name: CMY-R160-J1)
G Twinning pipe (Model name: CMY-Y102S-G2)
H Up to three units for 1 branch hole; total capacity: below 54 (but same in cooling/heat-
ing mode)
Available connection ( ✔ mark: available)
CMB-P108NU-JA2
CMB-P1012NU-JA2
CMB-P1016NU-JA2
No available
✔ ✔
✔
ø19.05 [3/4]
(Brazing)
ø22.2 [7/8]
(Brazing)
ø28.58 [1-1/8]
(Brazing)
ø34.93 [1-3/8]
(Brazing)
ø41.28 [1-5/8]
(Brazing)
G
D D D D
H
*3
CMB-P1016NU-KA2 CMB-P108NU-JA2
CMB-P1012NU-JA2
CMB-P1016NU-JA2
CMB-P104NU-KB2
No available CMB-P108NU-KB2
(Qty. 1 to 11)
✔ ✔
✔ ✔
✔
SUB BC CONTROLLER
Total capacity High pressure (gas)
of indoor units side *2
ø15.88 [5/8]
- P72
(Brazing)
P73 - P108
ø19.05 [3/4]
(Brazing)
P109 - P126
P127 - P144
ø22.2 [7/8]
(Brazing)
P145 - P216
P217 - P234
P235 - P288 ø28.58 [1-1/8]
(Brazing)
P289 -
*1. The maximum total capacity of indoor units that can be connected to each Sub
BC controller is P126.
*2. Use separately sold parts if the pipe diameter is not appropriate.
The size of BC controller's branch piping is for 24 to 54 type indoor units.
Therefore, if you want to connect indoor units other than the above, connect pip-
ing following the procedures below.
*1. For connecting 06 to 18 type indoor units
Refer to Fig. 5.2.1.
Note:
Use only the flare nuts supplied with the BC controller.
*2. To connect a unit with a capacity of higher than 54.
After combining two branches using an optionally available piping kit
(CMY-R160-J1), connect indoor units.
*3. Connection of plural indoor units with one connection (or joint pipe)
• Total capacity of connectable indoor units: Less than 54 (Less than 96 with
joint pipe)
• Number of connectable indoor units: Maximum 3 Sets
• Twinning pipe: Use the twinning pipe for CITY MULTI Y Series (CMY-
Y102S-G2)
CMB-P1016NU-KA2
CMB-P104NU-KB2
CMB-P108NU-KB2
(Qty. 1 to 11)
✔
✔
✔
Low pressure (gas)
Liquid side *2
side *2
ø19.05 [3/4]
(Brazing)
ø9.52 [3/8]
(Brazing)
ø22.2 [7/8]
(Brazing)
ø12.7 [1/2]
(Brazing)
ø28.58 [1-1/8]
(Brazing)
ø15.88 [5/8]
(Brazing)
ø34.93 [1-3/8]
(Brazing)
ø19.05 [3/4]
(Brazing)
ø41.28 [1-5/8]
(Brazing)
13