MEES19K180
PURY-H
P-
T(
S)NU-
A, Y(S)
NU-A
103
12. PIPING DESIGN
Hyper Heating Inverter R2-Series
12-2. Piping Design
"BC controller," "BC controller (Main)," and "BC controller (Sub)" that appear in this section refer to the J-type, JA/KA type, and KB type.
12-2-1. 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 limitation *8
Bent equivalent length
Item
Piping in the figure
Max. length
Max. equivalent length
Outdoor Model M (m/bent [ft./bent])
Total piping length (Total length of high pressure and liquid pipes)
A+B+C+D+E+a+b+c+d+e+f+g+i
*1
-
HP72T/YNU
0.35 [1.15']
Farthest IU from OU
A+D+E+i
165 [541']
190 [623']
HP96T/YNU
0.42 [1.38']
Distance between OU and BC
A
110 [360'] *1
110 [360'] *1
HP120T/YNU
Farthest IU from BC controller
D+E+i
60 [197'] *2*3
60 [197'] *2*3
0.50 [1.64']
Height between OU and IU (OU above IU)
H
50 [164'] *6
-
Height between OU and IU (OU under IU)
H'
40 [131'] *7
-
Height between IU and BC
h1
15 [49'] (10 [32']) *4
-
Height between IU and IU
h2
30 [98'] (20 [65']) *5
-
Piping "A"size selection rule
(mm [in.])
(m [ft.])
Outdoor Model
Pipe(High pressure)
Pipe(Low pressure)
HP72T/YNU
ø15.88 [5/8"]
ø19.05 [3/4"]
HP96T/YNU
ø19.05 [3/4"]
ø22.20 [7/8"]
HP120T/YNU
ø19.05 [3/4"]
ø28.58 [1-1/8"]
Piping "B", "C", "D", "E" size seleciton rule
(mm [in.])
P55-P72
ø9.52 [3/8"]
ø19.05 [3/4"]
P73-P96
ø9.52 [3/8"]
ø22.20 [7/8"]
Piping "a", "b", "c", "d", "e", "f", "g", "i" size selection rule
(mm [in.])
Indoor Unit size
Pipe(Liquid)
Pipe(Gas)
P04-P18
ø6.35 [1/4"]
ø12.70 [1/2"]
P24-P54
ø9.52 [3/8"]
ø15.88 [5/8"]
P72
ø9.52 [3/8"]
ø19.05 [3/4"]
P96
ø9.52 [3/8"]
ø22.20 [7/8"]
Total down-stream Indoor capacity
Pipe(Liquid)
Pipe(Gas)
P54 or less
ø9.52 [3/8"]
ø15.88 [5/8"]
Selection criteria for joints_A
P73-P96
CMY-Y102LS-G2
Total down-stream Indoor capacity
Joint
-P72
CMY-Y102SS-G2
Note1. No Header usable on PURY system.
Note2. Indoor unit sized P72-P96 should be connected to BC controller via Y shape joint CMY-R160-J1.
Note3. Indoor unit sized P72-P96 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 P72-P96 with 2 ports.
Note6. Do not connect multiple indoor units to the same port when operating each of them in different mod (cooling,
heating, stop, and thermo-off). The indoor units connected to the same port must be set to operate in the same
mode. Set them in the same group to make them run/stop in the same mode all together. For other options,
enable the thermo setting on the remote controller, or set the common thermostat (optional) to run/stop the units
in the same mode based on a representative temperature.
Note7. Indoor capactiy is described as its model size. For example, PEFY-P24NMAU-E3, its capacity is P24.
Note8. Total down-stream Indoor capacity is the summary of the model size of Indoors down-stream. For example,
PEFY-P24NMAU-E3 + PEFY-P06NMAU-E3: Total Indoor capacity = P24 + P06 = P30.
Note9. To connect the BC controller to the main pipe, use the reducer (CMY-R301S-G, CMY-R302S-G1, or CMY-R304S-G1).
Note10. Install the pipes correctly referring to the section titled "Procedures for installing the branched pipes."
OU: Outdoor Unit; IU: Indoor Unit; BC: BC controller
*1. Refer to the section 12-2-4.
*2. Details refer to Fig. 1.
*3. When the P72 or P96 model of indoor units are connected to the system, the maximum distance from the BC controller to the farthest indoor unit
(indicated as "D + E + i" in the figure is 40 meters.)
*4. Distance of Indoor sized P72, P96 from BC must be less than 10 m, if any.
*5. Distance of Indoor sized P72, P96 from IU must be less than 20 m, if any.
*6. 90 m is available depending on the model and installation conditions. For more detailed information, contact your local distributor.
*7. 60 m is available depending on the model and installation conditions. For more detailed information, contact your local distributor.
*8. Total length of high-pressure pipes and liquid pipes
S
T
M
N
CMY-R160-J1
(
Gas
side)
IU
CMY-R160-J1
(
Liquid
side)
BC controller
Fig. 12-2-1AA
Fig. 12-2-1A Piping scheme
OU: Outdoor unit, IU: Indoor unit
(T)ø19.05ID
(N)ø9.52ID
(M)ø3/8"(Brazing)
(M)ø3/8"(Brazing)
(S)ø5/8"(Brazing)
(S)ø5/8"(Brazing)
226
226
Joint CMY-R160-J1 Gas side
Joint CMY-R160-J1 Liquid side
Refer to the
installation manual
for the connection
CMY-R160-J1 (joint)
(joint_A)
CMY-Y102SS-G2
CMY-Y102LS-G2
CMY-R160-J1 (joint)
Pipe (Low pressure)
Pipe (High pressure)
Pipe (Liquid)
Pipe (Gas)
(P04-P54)
(P04-P54)
(P72-P96)
Max. 3 sets for 1 port.
Total capacity < = P54
Max. 3 sets for 2 port.
P54 < Total capacity < = P96
IU (each) max < = P54
BC controller (Main BC)
IU
A
A
a
a
b
b
IU
IU
IU
B
B
c
c
IU
IU
IU
IU
d
d
e
e
f
f
g
g
i
i
C
C
H
D
D
E
E
h1
H'
h2
Fig. 1 Piping length and height between IU and BC controller
Height difference between the main BC controller
and farthest indoor unit (m)
P
ipe length between the main BC
controller and indoor unit (m)
Height difference between the main BC controller
and farthest indoor unit (ft)
P
ipe length between the main BC
controller and indoor unit (ft)
0
10
20
30
40
50
60
70
0
5
10
15
0
50
100
150
200
250
0
5
10
15
20
25
30
35
40
45
OU
0000005744.BOOK 103 ページ ２０２０年２月２５日 火曜日 午後５時１９分
