9
GB
D
F
E
I
NL
P
GR
RU
TR
CZ
SV
SL
HG
PO
A
(Unit: mm [in])
Outdoor
model
P72
P96
P120
P144
P168
P192
P216
P240
P264
P288
P312
P336
P360
B, C, D
(Unit: mm [in])
Total capacity of indoor units
~ 54
55 ~ 72
73 ~ 108
109 ~ 144
145 ~ 240
241 ~ 308
309 ~
Liquid pipe
ø9.52 [3/8]
ø9.52 [3/8]
ø9.52 [3/8]
ø12.7 [1/2]
ø15.88 [5/8]
ø19.05 [3/4]
ø19.05 [3/4]
Gas pipe
ø15.88 [5/8]
ø19.05 [3/4]
ø22.2 [7/8]
ø28.58 [1-1/8]
ø28.58 [1-1/8]
ø34.93 [1-3/8]
ø41.28 [1-5/8]
Unit combination
A
A1*
3
A4
Unit 1
-
-
-
-
P96
P120
P120
P120
P144
P144
P120
P120
P144
Unit 2
-
-
-
-
P72
P72
P96
P120
P120
P144
P120
P120
P120
Unit 3
-
-
-
-
-
-
-
-
-
-
P72
P96
P96
Liquid pipe
ø9.52 [3/8]
*1
ø9.52 [3/8]
*2
ø9.52 [3/8]
ø12.7 [1/2]
ø15.88 [5/8]
ø15.88 [5/8]
ø15.88 [5/8]
ø15.88 [5/8]
ø19.05 [3/4]
ø19.05 [3/4]
ø19.05 [3/4]
ø19.05 [3/4]
ø19.05 [3/4]
Gas pipe
ø19.05 [3/4]
ø22.2 [7/8]
ø22.2 [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]
ø34.93 [1-3/8]
ø34.93 [1-3/8]
ø34.93 [1-3/8]
ø41.28 [1-5/8]
ø41.28 [1-5/8]
Liquid pipe
-
-
-
-
ø9.52 [3/8]
ø12.7 [1/2]
ø12.7 [1/2]
ø12.7 [1/2]
ø12.7 [1/2]
ø12.7 [1/2]
ø12.7 [1/2]
ø12.7 [1/2]
ø12.7 [1/2]
Gas pipe
-
-
-
-
ø22.2 [7/8]
ø22.2 [7/8]
ø22.2 [7/8]
ø22.2 [7/8]
ø28.58 [1-1/8]
ø28.58 [1-1/8]
ø22.2 [7/8]
ø22.2 [7/8]
ø28.58 [1-1/8]
Liquid pipe
-
-
-
-
ø9.52 [3/8]
ø9.52 [3/8]
ø9.52 [3/8]
ø12.7 [1/2]
ø12.7 [1/2]
ø12.7 [1/2]
ø12.7 [1/2]
ø12.7 [1/2]
ø12.7 [1/2]
Gas pipe
-
-
-
-
ø19.05 [3/4]
ø19.05 [3/4]
ø22.2 [7/8]
ø22.2 [7/8]
ø22.2 [7/8]
ø28.58 [1-1/8]
ø22.2 [7/8]
ø22.2 [7/8]
ø22.2 [7/8]
Liquid pipe
-
-
-
-
-
-
-
-
-
-
ø9.52 [3/8]
ø9.52 [3/8]
ø9.52 [3/8]
Gas pipe
-
-
-
-
-
-
-
-
-
-
ø19.05 [3/4]
ø22.2 [7/8]
ø22.2 [7/8]
Liquid pipe
-
-
-
-
-
-
-
-
-
-
ø19.05 [3/4]
ø19.05 [3/4]
ø19.05 [3/4]
Gas pipe
-
-
-
-
-
-
-
-
-
-
ø34.93 [1-3/8]
ø34.93 [1-3/8]
ø34.93 [1-3/8]
A2*
3
A3*
3
*1 ø12.7 for over 90m [295 ft]
*2 ø12.7 for over 40m [131 ft]
*3 The pipe sizes listed in columns A1 to A3 in this table correspond to the sizes for the models listed in the unit 1, 2, and 3 columns. When the order of the models for
unit 1, 2, and 3 change, make sure to use the appropriate pipe size.
Precautions for outdoor unit combinations
Refer to [Fig. 9.2.2] for the positioning of twinning pipes.
[Fig. 9.2.2]
<A> Make sure the pipes from the twinning pipe to the outdoor unit are sloped downwards (towards the twinning pipes).
B
C
F
Downstream unit model total
~ 72
73 ~ 144
145 ~ 240
The 1st branch of P144 ~ P240
241 ~
The 1st branch of P264 ~ P360
Joint
CMY-Y102S-G2
CMY-Y102L-G2
CMY-Y202-G2
CMY-Y302-G2
4-Branch header
(Downstream indoor
unit model total
<
=
72)
CMY-Y104-G
8-Branch header
(Downstream indoor
unit model total
<
=
144)
CMY-Y108-G
10-Branch header
(Downstream indoor
unit model total
<
=
240)
CMY-Y1010-G
<B> When the piping on the outdoor unit side (from the twinning pipe) exceeds 2 m [6 ft], ensure a trap (
gas pipe only
) within 2 m [6 ft].
Make sure the height of the trap is 200 mm [7-7/8 in] or more.
If there is no trap, oil can accumulate inside the pipe, causing a shortage of oil and may damage the compressor.
Outdoor Twinning Kit
CMY-Y100VBK2
CMY-Y200VBK2
CMY-Y300VBK2
Outdoor model
P168 ~ P240
P264 ~ P288
P312 ~ P360
a, b, c, d, e
(Unit: mm [in])
Model number
06, 08, 12, 15, 18
24, 27, 30, 36, 48, 54
72
96
Liquid pipe
ø6.35 [1/4]
ø9.52 [3/8]
ø9.52 [3/8]
ø9.52 [3/8]
Gas pipe
ø12.7 [1/2]
ø15.88 [5/8]
ø19.05 [3/4]
ø22.2 [7/8]
A
C
F
F
C
2[6]
F
D
E
C
(Unit: m [ft])
Caution:
•
Do not install traps other than the ones between outdoor units described on a separate sheet to prevent oil backflow and compressor start-up failure.
•
Do not install solenoid valves to prevent oil backflow and compressor start-up failure.
•
Do not install a sight glass because it may show improper refrigerant flow.
If a sight glass is installed, inexperienced technicians that use the glass may overcharge the refrigerant.
