Haier MRV 5-RC VP1-112B, Service Manual

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<Table 6> Dimensions (mm) of connection tube of the indoor units
<Table 7> Dimensions (mm) of connection pipe of the vale box
Total capacity type of the indoor units
(×100W)
Pipe dimensions (OD × minimum wall thickness)
Gas pipe Liquid pipe
22, 28 Ø9.52×0.8 Ø6.35×0.8
36, 45, 56 Ø12.7×0.8 Ø6.35×0.8
71, 80, 90, 112, 140 Ø15.88×1.0
Ø9.52×0.8 226 Ø25.4×1.2
280 Ø25.4×1.2
Note:
AS072/AS092, YVHVXH022/YVHVXH028 gas pipe/liquid pipe: Ø12.7/Ø6.35
AS182, YVHVXH056 gas pipe/liquid pipe: Ø15.88/Ø9.52
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 -1,3 for
connection according to Fig.11.
When an AS182 indoor unit is connected in the downstream, do not use the auxiliary pipe.
Type of valve
box for switch
between cooling
and heating
Pipe dimensions (OD × minimum wall thickness)
High pressure
gas pipe
Suction gas
pipe
Liquid pipe at
the outdoor
unit side
Gas pipe of
the indoor unit
Liquid pipe at
the indoor unit
side
112B Ø12.7×1.0 Ø15.88×1.0 Ø9.52×0.8 Ø15.88×1.0 Ø9.52×0.8
180B Ø15.88×1.0 Ø15.88×1.0 Ø9.52×0.8 Ø15.88×1.0 Ø9.52×0.8
280B Ø19.05×1.0 Ø22.22×1.2 Ø9.52×0.8 Ø22.22×1.2 Ø9.52×0.8