Hitachi CH-Box Installation Manual page 26

For cooling / heating change-over box
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CH-AP12MSSX
JCH-AP12MSSX
Piping Connection
Size for CH-Box
Low Pressure
ɸ28.58
Gas Pipe (A)
(1-1/8)
High/Low
ɸ25.4
Pressure
Gas Pipe (B)
ɸ15.88
Liquid Pipe (C)
CH-AP16MSSX
JCH-AP16MSSX
Piping Connection
Size for CH-Box
Low Pressure
ɸ31.75
Gas Pipe (A)
(1-1/4)
High/Low
ɸ28.58
Pressure
(1-1/8)
Gas Pipe (B)
ɸ19.05
Liquid Pipe (C)
16
Required
Pipe Size
ɸ22.2
OD28.58
(7/8)
ɸ25.4
OD28.58
(1)
ɸ28.58
(1-1/8)
f34.93
OD28.58
(1-3/8)
f19.05
OD25.4
(3/4)
ɸ22.2
OD25.4
(7/8)
(1)
ɸ25.4
(1)
ɸ28.58
OD25.4
(1-1/8)
f9.52
OD15.88
(3/8)
ɸ12.7
OD15.88
(1/2)
(5/8)
f15.88
(5/8)
f19.05
OD15.88
(3/4)
Required
Pipe Size
ɸ22.2
OD31.75
(7/8)
ɸ25.4
OD31.75
(1)
ɸ28.58
OD31.75
(1-1/8)
f31.75
(1-1/4)
f19.05
OD28.58
(3/4)
ɸ22.2
OD28.58
(7/8)
ɸ25.4
OD28.58
(1)
ɸ28.58
(1-1/8)
f9.52
OD19.05
(3/8)
ɸ12.7
OD19.05
(1/2)
(3/4)
f15.88
OD19.05
(5/8)
f19.05
(3/4)
Field-Supplied
ID22.2
Apply Field-Supplied Reducer
(1-1/8)
(7/8)
(2 Size Down)
ID25.4
Apply Field-Supplied Reducer
(1-1/8)
(1)
-
ID34.93
Apply Field-Supplied Reducer
(1-1/8)
(1-3/8)
ID19.05
Apply Field-Supplied Reducer
(1)
(3/4)
(2 Size Down)
ID22.2
Apply Field-Supplied Reducer
(1)
(7/8)
-
ID28.58
Apply Field-Supplied Reducer
(1)
(1-1/8)
ID9.52
Apply Field-Supplied Reducer
(5/8)
(3/8)
(2 Size Down)
ID12.7
Apply Field-Supplied Reducer
(5/8)
(1/2)
-
ID19.05
Apply Field-Supplied Reducer
(5/8)
(3/4)
Field-Supplied
ID22.2
Apply Field-Supplied Reducer
(1-1/4)
(7/8)
(3 Size Down)
ID25.4
Apply Field-Supplied Reducer
(1-1/4)
(1)
(2 Size Down)
ID28.58
Apply Field-Supplied Reducer
(1-1/4)
(1-1/8)
-
ID19.05
Apply Field-Supplied Reducer
(1-1/8)
(3/4)
(3 Size Down)
ID22.2
Apply Field-Supplied Reducer
(1-1/8)
(7/8)
(2 Size Down)
ID25.4
Apply Field-Supplied Reducer
(1-1/8)
(1)
-
ID9.52
Apply Field-Supplied Reducer
(3/4)
(3/8)
(3 Size Down)
ID12.7
Apply Field-Supplied Reducer
(3/4)
(1/2)
(2 Size Down)
ID15.88
Apply Field-Supplied Reducer
(3/4)
(5/8)
-
Unit: mm (inch)
Remarks
-
-
-
Unit: mm (inch)
Remarks
-
-
-
P5417025-rev.1

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