19
VG79D920H01
en
Pipes A, A
1
, A
2
[mm (in)]
Configuration
Combination unit
Pipe A
Pipe A
1
Pipe A
2
Unit 1
Unit 2
Liquid
Gas
Liquid
Gas
Liquid
Gas
Single-outdoor-unit system
m-MOCU-G02-050
-
ø15.88
(ø5/8)
ø28.58
(ø1-1/8)
-
-
-
-
Two-outdoor-unit system
m-MOCU-G02-050 m-MOCU-G02-050 ø15.88*
1
(ø5/8)
ø28.58*
1
(ø1-1/8)
ø15.88
(ø5/8)
ø28.58
(ø1-1/8)
ø15.88
(ø5/8)
ø28.58
(ø1-1/8)
*1 Deformed pipe is required. (Refer to the manual for the connected indoor unit.)
Change the pipe size as follows using deformed pipe.
CMY-Y200VBK2 Gas: ø34.93 → ø28.58
Liquid: ø19.05 → ø15.88
*2
If the pipe length after the first branching point exceeds 40 m (131 ft) (≤ 90 m (295 ft)), use the one size larger liquid pipe for all pipes from
indoor units to the first branch.
*3
When the vertical separation between the indoor units is 15 m (49 ft) (≤ 30 m (98 ft)), use the one size larger liquid pipe for all pipes from the
lower indoor units to the first branch.
Pipes B, C, D
[mm (in)]
Total capacity of indoor units
Pipe
Liquid
Gas
16 kW ≤
Total capacity
ø12.7 (ø1/2)
ø19.05 (ø3/4)
16 kW ˂
Total capacity ≤ 22.4 kW
ø15.88 (ø5/8)
ø22.2 (ø7/8)
22.4 kW ˂
Total capacity ≤ 33.5 kW
ø19.05 (ø3/4)
ø25.4 (ø1)
33.5 kW ˂ Total capacity
ø19.05 (ø3/4)
ø28.58 (ø1-1/8)
Pipes a, b, c, d, e
[mm (in)]
Indoor unit model name
Pipe
Liquid
Gas
m-MROW/MRAC-G02-009
ø12.7 (ø1/2)
ø19.05 (ø3/4)
m-MROW/MRAC-G02-015
ø15.88 (ø5/8)
ø22.2 (ø7/8)
m-MROW/MRAC-G02-025
ø19.05 (ø3/4)
ø25.4 (ø1)