Refrigerant Piping System - Mitsubishi Electric CITY MULTI PUHY-HP-TJMU-A Instruction Manual

9.2. Refrigerant piping system

Connection Example
[Fig. 9.2.1]
[Outdoor model : P72 ~ P96]
A
A
B
a b
B
C
C
[Outdoor model : P144 ~ P192]
u n it 1 u ni t 2
A
A A
1 2
E
A Outdoor unit
C Indoor unit
E Outdoor Twinning Kit
* The total length of A1 and A2 is less than 10 m [32 ft].
A
Unit combination
Outdoor model
unit 1 unit 2
P72 -
P96 -
P144 P72
P192 P96
B,C,D
Total capacity of indoor units
~ 54
55 ~ 72
73 ~ 108
109 ~ 144
145 ~ 234
a,b,c,d,e
Model number
06, 08, 12, 15, 18
24, 27, 30, 36, 48, 54
72
96
8
e
C D
c d
C C
C
A
A B C D
a b c d
B
C
C C C
B 1st branch
D Cap
F Header
A
Liquid pipe Gas pipe
- ø12.7 [1/2] ø19.05 [3/4]
- ø12.7 [1/2] ø22.2 [7/8]
P72 ø15.88 [5/8] ø28.58 [1-1/8]
P96 ø15.88 [5/8] ø28.58 [1-1/8]
(Unit: mm [in])
Liquid pipe Gas pipe
ø9.52 [3/8] ø15.88 [5/8]
ø9.52 [3/8] ø19.05 [3/4]
ø9.52 [3/8] ø22.2 [7/8]
ø12.7 [1/2] ø28.58 [1-1/8]
ø15.88 [5/8] ø28.58 [1-1/8]
(Unit: mm [in])
Liquid pipe Gas pipe
ø6.35 [1/4] ø12.7 [1/2]
ø9.52 [3/8] ø15.88 [5/8]
ø9.52 [3/8] ø19.05 [3/4]
ø9.52 [3/8] ø22.2 [7/8]
A
A
F
B
a b c d
C C
C C
u n it 1
A
A
1
e
C
A1
Liquid pipe Gas pipe
-
-
ø12.7 [1/2] ø19.05 [3/4]
ø12.7 [1/2] ø22.2 [7/8]
Downstream unit model total
~ 72
73 ~ 144
145 ~ 234
The 1st branch of P144 ~ P234
4-Branch header
(Downstream
indoor unit model
total 72)
CMY-Y104C-G
Outdoor model
P144 ~ P192
D
e
C
u ni t 2
A
A
2
A
F
B
E
a b c d
C C
C C
A2
Liquid pipe
- -
- -
ø12.7 [1/2] ø19.05 [3/4]
ø12.7 [1/2] ø22.2 [7/8]
Joint
CMY-Y102SS-G2
CMY-Y102LS-G2
CMY-Y202S-G2
8-Branch header 10-Branch header
(Downstream (Downstream
indoor unit model indoor unit model
total 144) total 234)
CMY-Y108C-G CMY-Y1010C-G
Outdoor Twinning Kit
CMY-Y100CBK2
D
e
C
(Unit: mm [in])
Gas pipe
-
-