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(16)-4 PQRY-P400YHM Piping
IF more than 16 ports are in use, or if there is more than one BC controller in use for two heat source units
(Connection with standard CITY MULTI indoor units, PWFY-P100VM-E-BU, PWFY-P100/200VM-E-AU)
Note1. No Header usable on PQRY system.
Note2. Indoor unit sized P100-P250 should be connected to BC controller via Y shape joint CMY-R160-J1 ;
Note3. Indoor unit sized P100-P250 does NOT share BC controller ports with other Indoor units ;
Note4. As bents cause pressure loss on transportation of refrigerant, fewer bents design is better ;
Piping length needs to consider the actual length and equivalent length which bents are counted.
Equivalent piping length (m)=Actual piping length+"M" x Quantity of bent.
Note5. Set DIP-SW 4-6 to ON of BC controller, in case of connected Indoor unit sized P100-P140 with 2 ports.
Note6. It is also possible to connect Indoor unit sized P100-P140 with 1 port (set DIP-SW 4-6 to OFF).
However, the cooling capacity decreases a little (For details, refer to the chapter HEAT SOURCE UNITS,
WR2 SERIES, 3-(10). Correction by port counts of the BC controller).
Note7. Individual indoor units grouped together to connect to the BC controller via one port cannot operate individually
in heating and cooling modes at the same time. I.e., they must all function in either heating or cooling together.
Note8. For sub BC controller CMB-P
V-GB1 the connectable indoor unit capacities may sum to equal that of a
•
P350 unit or less. However, if two sub controllers are used the TOTAL sum of connectable units
connected to BOTH sub controllers must also not exceed that of a P350 unit.
For sub BC controller CMB-P1016V-HB1 the connectable indoor unit capacities may sum to equal that
or a P350 unit or less. However, if two sub controllers are used the TOTAL sum of connectable units
connected to BOTH sub controllers must also not exceed that of a P450 unit.
Note9. Indoor capactiy is described as its model size. For example, PEFY-P63VMA-E, its capacity is P63.
Note10. Total down-stream Indoor capacity is the summary of the model size of Indoors down-stream.
For example, PEFY-P63VMA-E + PEFY-P32VMA-E : Total Indoor capacity = P63 + P32 = P95.
Main unit
Sub unit
h4
H
F
G
H
H'
Reducer (P15-P50)
(attached with BC controller)
a
h1
IU
(P15-P80)
Fig. 16-4A Piping scheme
Table16-4-1. Piping length limitation
Item
Total piping length
Farthest IU from HU
Distance between HU and BC
Farthest IU from BC controller
Heignt between HU and IU (HU above IU)
Heignt between HU and IU (HU under IU)
Height between IU and BC
Height between IU and IU
Heignt between BC(Main or Sub) and BC(Sub) h3
Distance between Main unit and Sub unit
Height between Main unit and Sub unit
HU : Heat source Unit ; IU : Indoor Unit ; BC : BC controller
*1. Refer to the section (16)-5.
*2. Details refer to Fig.16-4-1
*3. Farthest Indoor from BC controller "B+d or C+D+e or C+E+f " can exceed 40m till 60m if no Indoor sized P200, P250 connected. Details refer to Fig.16-4-1
*4. Distance of Indoor sized P200, P250 from BC must be less than 10m, if any.
*5. When using 2 Sub BC controllers, max. height "h3" should be considered.
Fig. 16-4-1 Piping length and height between IU and BC controller
70
60
50
40
30
20
10
0
0
5
Height difference between the main BC controller
and farthest indoor unit (m)
Table16-4-6. Piping "F", "G", "H" size selection rule
Heat source Model Pipe(High pressure)
P200YHM
ø15.88 [5/8"]
P250YHM
ø19.05 [3/4"]
P300YHM
ø19.05 [3/4"]
Heat source Twinning kit (High/Low press.)
CMY-Q100VBK:
The Low press. kit is set in the Main unit ;
The High press. kit is to be installed in the field.
A
BC controller (Main BC)
C
CMY-Y102S-G
(Joint)
B
b
CMY-R160-J1
(Joint)
IU
(P100-P250)
Piping in the figure
F+G+H+A+B+C+D+E+a+b+c+d+e+f
F(G)+A+C+E+f
F(G)+A
B+d or C+D+e or C+E+f
H
H'
h1
h2
F+G or H
h4
Table16-4-3. Piping "A"size selection rule
Heat source Model Pipe(High pressure)
P400YSHM
P450YSHM
P500YSHM
P550YSHM
P600YSHM
Table16-4-4. Piping "B" size seleciton rule
Total down-stream Indoor capacity
P140 or less
Table16-4-5. Piping "C", "D", "E" size selection rule
Total down-stream Indoor capacity
P200 or less
P201 to P300
P301 to P350
10
15
P351 to P400
P401 to P450
HP : High pressure, LP:Low pressure
Table16-4-7. Piping "a", "b", "c", "d", "e", "f" size selection rule (mm [in.])
(mm [in.])
Indoor Unit size
Pipe(Low pressure)
P15 to P50
ø19.05 [3/4"]
ø22.20 [7/8"]
P63 to P140
P200
ø22.20 [7/8"]
P250
CMY-R160-J1
S
CMY-R160-J1
(Gas side)
Fig. 16-4AA
CMY-Y202-G2
CMY-Y102L-G2
CMY-Y102S-G2
BC controller (Sub BC)
D
(Joint)
BC controller (Sub BC)
E
c
d
IU
IU
Max.3 sets for 1 port.
Total capacity < = P80
(m [ft.])
Max. length
Max. equivalent length
*1
-
165 [541']
190 [623']
110 [360'] *1
110 [360'] *1
40 [131'] *2*3
40 [131'] *2*3
50 [164']
-
40 [131']
-
15 [49'] (10 [32']) *4
-
15 [49'] (10 [32']) *4
-
15 [49'] (10 [32']) *5
-
5 [16']
-
0.1 [0.3']
-
Pipe(Low pressure)
ø22.20 [7/8"]
ø28.58 [1-1/8"]
ø22.20 [7/8"]
ø28.58 [1-1/8"]
ø22.20 [7/8"]
ø28.58 [1-1/8"]
ø28.58 [1-1/8"]
ø28.58 [1-1/8"]
ø28.58 [1-1/8"]
ø28.58 [1-1/8"]
Pipe(Liquid)
ø9.52 [3/8"]
Pipe(Lequid)
ø9.52 [3/8"]
ø9.52 [3/8"]
ø12.70 [1/2"] ø19.05 [3/4"]
ø12.70 [1/2"] ø22.20 [7/8"]
ø15.88 [5/8"] ø22.20 [7/8"]
Pipe(Lequid)
Pipe(Gas)
ø6.35 [1/4"]
ø12.70 [1/2"]
ø9.52 [3/8"]
ø15.88 [5/8"]
ø9.52 [3/8"]
ø19.05 [3/4"]
ø9.52 [3/8"]
ø22.20 [7/8"]
- 107 -
Joint CMY-R160-J1 Liquid side
(Liquid side)
(M)ø3/8"(Brazing)
M
BC controller
(M)ø3/8"(Brazing)
Joint CMY-R160-J1 Gas side
N
T
(S)ø5/8"(Brazing)
IU
(S)ø5/8"(Brazing)
IU
e
h1
h3
h2
f
h1
IU
IU : Indoor unit
Table16-4-2. Bent equivalent length "M"
Heat source Model M (m/bent [ft./bent])
P400YSHM
0.50 [1.64']
P450YSHM
0.50 [1.64']
P500YSHM
0.50 [1.64']
P550YSHM
0.50 [1.64']
P600YSHM
0.50 [1.64']
(mm [in.])
(mm [in.])
Pipe(Gas)
ø15.88 [5/8"]
(mm [in.])
Pipe(HP Gas)
Pipe(LP Gas)
ø15.88 [5/8"]
ø19.05 [3/4"]
ø19.05 [3/4"]
ø22.20 [7/8"]
ø28.58 [1-1/8"]
ø28.58 [1-1/8"]
ø28.58 [1-1/8"]
226
(N)ø9.52ID
226
(T)ø19.05ID
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