Connection Scenarios - Hitachi RAS-8FSXNS2E Installation & Operation Manual

3.4 Connection scenarios

2 pipes system
Stop Valve (Liquid)
C
Flaring
Liquid pipe
(field-supplied)
(*) Each accessory pipe has to be checked in the table below for the correct piping connection between outdoor unit
system and the installation main pipe.
3 pipes system
Stop Valve (Liquid)
C
Flaring
Liquid pipe
(field-supplied)
90° Elbow
(field-supplied)
Gas pipe (field-supplied)
or
Accessory pipe (*)
(*) Each accessory pipe has to be checked in the table below for the correct piping connection between outdoor unit
system and the installation main pipe.
PMML0628 rev.0 - 05/2023
Stop Valve (Gas
High/Low pressure)
B
90° Elbow
(field-supplied)
Accessory pipe
(*)
Stop Valve (Liquid)
C
Flaring
Accessory pipe
(*)
90° Elbow
(field-supplied)
Stop Valve (Gas High/Low pressure) B
Stop Valve
(Gas Low pressure) A
90° Elbow
(field-supplied)
Gas pipe (field-supplied)
or
Gas pipe (field-supplied)
Accessory pipe (*)
Stop Valve (Liquid)
C
Flaring
Liquid pipe
(field-supplied)
Stop Valve (Gas
High/Low pressure)
B
90° Elbow
(field-supplied)
Accessory pipe
(*)
Stop Valve (Liquid)
C
Flaring
Accessory pipe
(*)
90° Elbow
(field-supplied)
90° Elbow
(field-supplied)
or
Accessory pipe (*)
Stop Valve (Gas
High/Low pressure)
B
90° Elbow
(field-supplied)
Gas pipe
(field-supplied)
Stop Valve
(Gas High/Low pressure) B
Stop Valve
(Gas Low pressure) A
90° Elbow
(field-supplied)
Gas pipe (field-supplied)
or
Accessory pipe (*)
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