Hitachi UTOPIA R32 Series - 3.1 General Notes; 3.2 RAS-(2;2.5)HVRC3

9
PMEN0654 rev.0 - 12/2023
3
GENERAL NOTES
REFRIGERANT CYCLE
3.1 General notes
Refrigerant
Heang
refrigerant ow
Cooling
refrigerant ow
Field supplied
piping line
Flare nut
connecon
Brazed
connecon
R32
3.2 RAS-(2/2.5)HVRC3
6
9
7
2
3
14
16
16
3
15
11213
6
10
11
4
8
5
A
Ø12.7
D Ø6.35
F Ø6.35
E Ø6.35
C Ø9.52
C Ø9.52
C Ø9.52
B Ø12.7
C Ø9.52
B Ø12.7
E Ø6.35
E Ø6.35
E Ø6.35
5
N° Part name
1 Compressor
2 Air side heat exchanger
3 Accumulator
4 Refrigerant strainer
5 Distributor
6 Silencer
7 4-way valve
8
Outdoor unit electronic
expansion valve
9 Refrigerant check joint
10 Stop valve for gas line
11 Stop valve for liquid line
12
High pressure switch for
protecon
13 Pressure switch for control
14 Ambient thermistor
15 Discharge gas thermistor
16 Pipe thermistor
Mark Outer diameter x wall thickness Material
A Ø 12.7 x 0.8 t
C1220T-0
B Ø 12.7 x 0.7 t
C Ø 9.52 x 0.8 t
D Ø 6.35 x 0.8 t
E Ø 6.35 x 0.7 t
F Ø 6.35 x 0.6 t