Haier MRV 5-RC VP1-112B Service Manual page 122

<Table 6> Dimensions (mm) of connection tube of the indoor units
Total capacity type of the indoor units
(×100W)
22, 28
36, 45, 56
71, 80, 90, 112, 140
226
280
Note:
AS072/AS092, YVHVXH022/YVHVXH028 gas pipe/liquid pipe: Ø12.7/Ø6.35
AS182, YVHVXH056 gas pipe/liquid pipe: Ø15.88/Ø9.52
<Table 7> Dimensions (mm) of connection pipe of the vale box
Type of valve
box for switch
High pressure
between cooling
gas pipe
and heating
112B Ø12.7×1.0
180B Ø15.88×1.0
280B Ø19.05×1.0
Pipe connection
(*1) Refer to the field pipe
(*2) Please use the flare nut installed on the product body again.
Note:
During installation, please confirm the HP gas pipe and Suction gas pipe between outdoor and valve box (such as
by sending nitrogen into the HP gas pipe and Suction gas pipe), then connect Suction gas pipe to the Suction gas
pipe of valve box, HP gas pipe to the HP gas pipe of valve box.
112B
(Note):
When a 072, 092, 22 or 28 indoor unit except for the High wall is connected in the downstream, please use the
auxiliary pipe -1,2 for connection according to Fig.11.
When a 122, 162, 182, 36, 45 or 56 indoor unit except for the High wall is connected in the downstream, please use
the auxiliary pipe -1,3 for connection according to Fig.11.
When a AS072, AS092 indoor unit is connected in the downstream, please use the auxiliary pipe
connection according to Fig.11.
When an AS182 indoor unit is connected in the downstream, do not use the auxiliary pipe.
Pipe dimensions (OD × minimum wall thickness)
Gas pipe
Ø9.52×0.8
Ø12.7×0.8
Ø15.88×1.0
Ø25.4×1.2
Ø25.4×1.2
Pipe dimensions (OD × minimum wall thickness)
Liquid pipe at
Suction gas
the outdoor
pipe
unit side
Ø15.88×1.0 Ø9.52×0.8
Ø15.88×1.0 Ø9.52×0.8
Ø22.22×1.2 Ø9.52×0.8
119
Liquid pipe
Ø6.35×0.8
Ø6.35×0.8
Ø9.52×0.8
Liquid pipe at
Gas pipe of
the indoor unit
the indoor unit
side
Ø15.88×1.0 Ø9.52×0.8
Ø15.88×1.0 Ø9.52×0.8
Ø22.22×1.2 Ø9.52×0.8
-1,3 for