5
4.1
[Fig. 4.1.1]
4
B
C
D
E
F
A
A
F
A
A
Indoor unit connecting port
B
Cutting point : ø9.52 (Liquid side) or ø15.88 (Gas side)
(Indoor unit model : bigger than P50)
C
Cutting point : ø6.35 (Liquid side) or ø12.7 (Gas side)
(Indoor unit model : P50 or smaller)
D
Cut the piping at the cutting point
E
Have pipe expansion of indoor unit connecting port
F
Field pipe
Note:
Remove burr after cutting the piping to prevent entering the piping.
Check that there is no crack at the pipe expansion part.
A
To outdoor unit (MAIN BC CONTROLLER)
B
End connection (brazing)
C
BC controller (MAIN BC CONTROLLER / SUB BC CONTROLLER)
D
Reducer
E
Indoor unit
F
Less than 50
G
Combined piping kit (Model name: CMY-R160-J1)
H
Twinning pipe (Model name: CMY-Y102S-G2)
I
Up to three units for 1 branch hole; total capacity: below 80 (but same in cooling/
heating mode)
E
E
E
E
E
I
E
A B
G
*2
H
*1
D
63-80
100-250
*3
C
F
Total capacity of indoor units
Liquid line
Gas line
Below 140
ø15.88
141 to 200
ø9.52
ø19.05
201 to 250
ø22.2
*1. For connecting 15 to 50 type indoor units
Have pipe expansion of indoor unit connecting port by cutting the piping at the
cutting point which depends on the indoor unit capacity.
Note:
Remove burr after cutting the piping to prevent entering the piping.
Check that there is no crack at the pipe expansion part.
*2. To connect a unit with a capacity of higher than 81.
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 80 (Less than 250 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)
•
Selection of refrigerant piping
Select the size according to the total capacity of indoor units to be installed
downstream.
*1 Use the supplied pipe.
Outdoor unit side
PURY-(E) P400
PQRY-P400
PURY-(E) P450
PQRY-P450
PURY-(E) P500
PQRY-P500
PURY-(E) P550
PQRY-P550
PURY-(E) P600
PQRY-P600
PURY-P650
PURY-P700
PURY-P750
PURY-P800
BC CONTROLLER/MAIN BC CONTROLLER
SUB BC CONTROLLER
Unit model
Model name
High pressure
side
Low pressure
side
Model name
Total capacity
of indoor units
High pressure
(gas) side
Low pressure
(gas) side
Liquid side
PURY-(E) P200
PQRY-P200
PURY-(E) P250
PQRY-P250
PURY-(E) P300
PQRY-P300
PURY-P350
Indoor unit side
(BC CONTROLLER)
CMB-P104V-G1
CMB-P105V-G1
CMB-P106V-G1
CMB-P108V-G1
CMB-P1010V-G1
CMB-P1013V-G1
CMB-P1016V-G1
(MAIN BC
CONTROLLER)
CMB-P108V-GA1
CMB-P1010V-GA1
CMB-P1013V-GA1
CMB-P1016V-GA1
(MAIN BC
CONTROLLER)
CMB-P1016V-HA1
When a system that has more than 16 branching points, use BC controllers (main and
sub) to connect the pipes.
CMB-P104V-GB1
CMB-P108V-GB1
CMB-P1016V-HB1
ø15.88*1
(Brazing)
ø19.05
(Brazing)
ø19.05*1
(Brazing)
ø22.2
(Brazing)
ø28.58*1
(Brazing)
ø28.58
(Brazing)
ø9.52 or ø6.35
(Brazing)
ø19.05*1
(Brazing)
ø22.2
(Brazing)
ø28.58*1
(Brazing)
ø28.58
(Brazing)
ø34.93*1
(Brazing)
ø15.88 or ø12.7
(Brazing)
below 200
ø15.88*1
(Brazing)
ø19.05*1
(Brazing)
ø9.52
(Brazing)
201~300
ø19.05
(Brazing)
ø22.2
(Brazing)
301~350
351~400
ø22.2*1
(Brazing)
ø28.58*1
(Brazing)
401~450
ø9.52 or ø6.35
(Brazing)
ø15.88 or ø12.7
(Brazing)
ø12.7*1
(Brazing)
ø15.88*1
(Brazing)
[Fig. 4.1.2]
