229
3. Piping Design
SYSTEM DESIGN
S.D. WR2
MEE15K036
3-2. Piping Design
3-2-1. PQRY-P200-600YLM Piping
IF 16 ports or less are in use, I.e., if only one BC controller is in use with no sub BC controller
Piping length
A+B+C+D+E+a+b+c+d+e+f+g+h
A+D+E+h
D+E+h
Bent equivalent length "M"
Item
Piping in the figure
Max. length
Max. equivalent length
Heat source Model M (m/bent [ft./bent])
Total piping length
*1
-
P200YLM
0.35 [1.15']
Farthest IU from HU
165 [541']
190 [623']
P450YLM
0.50 [1.64']
Distance between HU and BC
A
110 [360'] *1
110 [360'] *1
P500YLM
0.50 [1.64']
Farthest IU from BC controller
40 [131'] *2
40 [131'] *2
Height between HU and IU (HU above IU) H
50 [164']
-
Height between HU and IU (HU under IU) H'
40 [131']
-
Height between IU and BC
h1
15 [49'] (10 [32']) *3
-
Height between IU and IU
h2
15 [49'] (10 [32']) *3
-
Fig. 3-2-1-1 Piping length and height between IU and BC controller
Piping "A"size selection rule
(mm [in.])
(m [ft.])
Heat source Model
Pipe(High pressure)
Pipe(Low pressure)
P200YLM
ø15.88 [5/8"]
ø19.05 [3/4"]
P550YLM
ø22.20 [7/8"]*
ø28.58 [1-1/8"]
P600YLM
ø22.20 [7/8"]*
ø34.93 [1-3/8"]
P550YLM
0.50 [1.64']
P600YLM
0.50 [1.64']
P250YLM
0.42 [1.38']
P300YLM
0.42 [1.38']
P350YLM
0.50 [1.64']
P400YLM
0.50 [1.64']
P250-300YLM
ø19.05 [3/4"]
ø22.20 [7/8"]
P350-500YLM
ø22.20 [7/8"]
ø28.58 [1-1/8"]
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 "M" x Number 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).
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
However, the cooling capacity decreases a little (For details, refer to the chapter HEAT SOURCE UNITS,
WR2 SERIES, 7-4. Correction by port counts of the BC controller).
or cooling together.
Note8. Indoor capactiy is described as its model size. For example, PEFY-P63VML-E, its capacity is P63.
Note9. Total down-stream Indoor capacity is the summary of the model size of Indoors down-stream.
For example, PEFY-P63VML-E + PEFY-P32VML-E : Total Indoor capacity = P63 + P32 = P95.
HU : Heat source Unit ; IU : Indoor Unit ; BC : BC controller
*1. Refer to the section 3-2-4.
*2. Farthest Indoor from BC controller "D+E+h" can exceed 40m [131ft.] till 60m [197ft.] if no Indoor sized P200, P250 connected.
Details refer to Fig.3-2-1-1
*3. Distance of Indoor sized P200, P250 from BC must be less than 10m [32ft.] , if any.
0
10
20
30
40
50
60
70
0
5
10
15
Height difference between the main BC controller
and farthest indoor unit (m)
Pipe length between the main BC
controller and indoor unit (m)
S
T
M
N
CMY-R160-J1
(
Gas
side)
IU
CMY-R160-J1
(
Liquid
side)
BC controller
(T)ø19.05ID
(N)ø9.52ID
(M)ø3/8"(Brazing)
(M)ø3/8"(Brazing)
(S)ø5/8"(Brazing)
Joint CMY-R160-J1 Gas side
Joint CMY-R160-J1 Liquid side
(S)ø5/8"(Brazing)
226
226
Fig. 3-2-1AA
Fig. 3-2-1A Piping scheme
Piping "B", "C", "D", "E" size seleciton rule
(mm [in.])
P141-P200
ø9.52 [3/8"]
ø19.05 [3/4"]
P201-P250
ø9.52 [3/8"]
ø22.20 [7/8"]
Piping "a", "b", "c", "d", "e", "f", "g", "h" size selection rule
(mm [in.])
Indoor Unit size
Pipe(Liquid)
Pipe(Gas)
P15 to P50, GUF-50RD(H)
ø6.35 [1/4"]
ø12.70 [1/2"]
P63 to P140, GUF-100RD(H)
ø9.52 [3/8"]
ø15.88 [5/8"]
P200
ø9.52 [3/8"]
ø19.05 [3/4"]
P250
ø9.52 [3/8"]
ø22.20 [7/8"]
Total down-stream Indoor capacity
Pipe(Liquid)
Pipe(Gas)
P140 or less
ø9.52 [3/8"]
ø15.88 [5/8"]
HU
H
H'
h1
A
h2
h
g
f
e
d
c
IU
IU
IU
IU
IU
IU
BC controller
Max. 3 sets for 1 port.
Total capacity < = P80
(P15-P80)
(P100-P250)
CMY-R160-J1 (joint)
Possible to remove P140 and under P140, but the
capacity should be multiplied by a correction factor 0.97
Max. 3 sets for 1 port.
Total capacity > P80
IU (each) max < = P80
Refer to the
installation manual
for the connection
B
C
D
IU
E
a
b
CMY-R160-J1 (joint)
Possible to remove the total capacity P140 and under P140,
but the capacity should be multiplied by a correction factor 0.97
IU
* When the piping length is 65 m or longer, use the ø28.58 [1-1/8] pipe for the part that exceeds 65 m.
0000003813.BOOK 229 ページ ２０１５年１１月１１日 水曜日 午後４時４分
