Mitsubishi Electric PUHY-RP-Y(S)JM-B Data Book page 275

3. Piping Design
3-1-2. IF more than 16 ports are in use, or if there is more than one BC controller in use for one outdoor unit
Note1. No Header usable on PURY 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 OUTDOOR UNITS,
R2 SERIES, 6-4. 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-P63VML-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-P63VML-E + PEFY-P32VML-E : Total Indoor capacity = P63 + P32 = P95.
OU
H H'
Reducer (P15-P50)
(attached with BC controller)
h1
(P15-P80)
Fig. 3-1-2B Piping scheme
Table 3-1-2-1 . Piping length limitation
Item
Total piping length
Farthest IU from OU
Distance between OU and BC
Farthest IU from BC controller
Heignt between OU and IU (OU above IU)
Heignt between OU and IU (OU under IU)
Height between IU and BC
Height between IU and IU
Height between BC(Main or Sub) and BC(Sub)
OU : Outdoor Unit ; IU : Indoor Unit
* 1 Do not exceed the amount of refrigerant to be charged written below.
PURY-RP200-300YJM-B : 0.16 × L
L : Total length of ø19.05 high pressure pipe (m)
1
L : Total length of ø15.88 high pressure pipe (m)
2
L : Total length of ø12.7 liquid pipe (m)
3
L : Total length of ø9.52 liquid pipe (m)
4
L : Total length of ø6.35 liquid pipe (m)
5
* 2 The value in ( ) in the table is applied when indoor total capacity exceeds 130% of
outdoor unit capacity.
* 3 Distance of indoor unit size P200, P250 from BC must be less than 10 m, if any.
* 4 ø25.4 for R22
A
BC controller (Main BC) C
CMY-Y102S-G
(Joint)
B
a
CMY-R160-J1 b
(Joint)
IU
IU
(P100-P250)
Piping in the figure
A+B+a+b+c+d
A+B+d
A
B+d
H
H'
h1
h2
h3
+ 0.11 × L + 0.12 × L + 0.06 × L + 0.024 × L
1 2 3 4
SYSTEM DESIGN
CMY-R160-J1
(Liquid side)
M
BC controller
S
T
CMY-R160-J1
(Gas side)
Fig. 3-1-2AA
CMY-Y202-G2
CMY-Y102L-G2
CMY-Y102S-G2
BC controller (Sub BC)
D
(Joint)
E BC controller (Sub BC)
d
c
IU IU
Max.3 sets for 1 port.
Total capacity < = P80
OU : Outdoor unit, IU : Indoor unit
Max. length Max. equivalent length
220 *1
100 (90) *2 125 (115)
70 (60) *2
30
50
40
15 (10) *3
15 (10) *3
15 (10) *3
Table3-1-2-3. Piping "A"size selection rule
< 20 Outdoor Model
5
RP200YJM
RP250YJM
RP300YJM
Table3-1-2-4. Piping "B" size seleciton rule
Total down-stream Indoor capacity Pipe(Liquid)
P80 or less
P81 or more
Table3-1-2-5
. Piping "C", "D", "E" size selection rule
Total down-stream Indoor capacity
P200 or less
P201 to P300
P301 to P350
P351 to P400
HP : High pressure, LP:Low pressure
Table3-1-2-6. Piping "a", "b", "c", "d" size selection rule (mm [in.])
Indoor Unit size
P15 to P40, GUF-50RD(H)
P50 to P80, GUF-100RD(H)
P100 to P140
P200
P250
Joint CMY-R160-J1 Liquid side
226
(M)ø3/8"(Brazing)
(N)ø9.52ID
(M)ø3/8"(Brazing)
Joint CMY-R160-J1 Gas side
N
226
(S)ø5/8"(Brazing)
IU
(T)ø19.05ID
(S)ø5/8"(Brazing)
IU
e
h1
h3
h2
f
h1
IU
(m)
Table3-1-2-2. Bent equivalent length "M"
Outdoor Model
PUHY-RP200YJM-B
PUHY-RP250YJM-B
PUHY-RP300YJM-B
Pipe(High pressure) Pipe(Low pressure)
ø19.05 [3/4"] ø28.58 [1-1/8"] *4
ø19.05 [3/4"] ø28.58 [1-1/8"]
ø19.05 [3/4"] ø28.58 [1-1/8"]
Pipe(Gas)
ø9.52 [3/8"] ø15.88 [5/8"]
ø12.7 [1/2"] ø19.05 [3/4"]
Pipe(Lequid) Pipe(HP Gas)
ø9.52 [3/8"] ø15.88 [5/8"]
ø9.52 [3/8"] ø19.05 [3/4"]
ø12.70 [1/2"] ø19.05 [3/4"]
ø12.70 [1/2"] ø22.20 [7/8"]
Pipe(Liquid) 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"]
ø12.7 [1/2"] ø25.4 [1"] or
ø28.58 [1-1/8"]
ø12.7 [1/2"] ø28.58 [1-1/8"]
M (m/bent)
0.35
0.42
0.42
(mm [in.])
(mm [in.])
(mm [in.])
Pipe(LP Gas)
ø19.05 [3/4"]
ø22.20 [7/8"]
ø28.58 [1-1/8"]
ø28.58 [1-1/8"]
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