General Notes; Ras-(2/2.5)Hvrc3 - Hitachi UTOPIA R32 Series Installation And Operation Manual

3.1 General notes

Heating Cooling
refrigerant flow refrigerant flow

3.2 RAS-(2/2.5)HVRC3

5
16
5
16
8
4
11
F Ø6.35
D Ø6.35 E Ø6.35
A Ø12.7 C Ø9.52
10
6
13
PMEN0654 rev.0 - 12/2023
Field supplied
piping line
E Ø6.35
E Ø6.35
C Ø9.52 C Ø9.52
C Ø9.52
B Ø12.7
12 1 3
Mark Outer diameter x wall thickness
A Ø 12.7 x 0.8 t
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
Flare nut
connection connection
N°
14
1
2
2
3
4
5
6
7
7
9
8
B Ø12.7
9
10 Stop valve for gas line
E Ø6.35
11 Stop valve for liquid line
6
12
13 Pressure switch for control
3
14 Ambient thermistor
15 Discharge gas thermistor
15
16 Pipe thermistor
Material
C1220T-0
Refrigerant
Brazed
R32
Part name
Compressor
Air side heat exchanger
Accumulator
Refrigerant strainer
Distributor
Silencer
4-way valve
Outdoor unit electronic
expansion valve
Refrigerant check joint
High pressure switch for
protection
3
9