Hitachi UTOPIA R32 Series Technical Catalogue

8 Refrigerant cycle
General notes
TCGB0136 rev.1 - 05/2021
80
8.1 General notes
Mark Part name
A Gas line refrigerant piping connection
B Liquid line refrigerant piping connection
C Outdoor unit
8.2 RAS-3HVRC2
6
9
7
2
3
14
16
16
3
15
11213
6
10
11
4
8
5
Ø15.88
Ø9.52
Ø6.35
Ø8.0
Ø12.7
Ø9.52
Ø12.7
Ø12.7
Ø9.52
Ø12.7
Ø6.35
Ø6.35
Ø4.76
Ø6.35
5
A
B
C
Nº Part name
1 Compressor
2 Air side heat exchanger
3 Accumulator
4 Refrigerant strainer
5 Distributor
6 Silencer
7 4-way valve
8 OU electronic expansion valve
9 Refrigerant check joint
10 Stop valve for gas line
11 Stop valve for liquid line
12 High pressure switch for protection
13 Pressure switch for control
14 Ambient thermistor
15 Discharge gas thermistor
16 Pipe thermistor
Refrigerant
Heating
refrigerant ow
Cooling
refrigerant ow
Water ow
(Heating/
Cooling)
Field supplied
piping line
Flare nut
connection
Brazed
connection
R32
G0000069481

Hitachi UTOPIA R32 Series Specifications

General

Brand	Hitachi
Model	UTOPIA R32 Series
Category	Air Conditioner
Language	English