Hitachi UTOPIA RAS-4HVRP2E Installations- Und Betriebshandbuch Seite 49

Commissioning
11.1 MAIN SAFETY DEVICE

Compressor Protection
High Pressure Switch:
This switch cuts out the operation of the compressor when the discharge pressure exceeds the setting.

Fan motor protection
When the thermistor temperature is reached to the setting, motor output is decreased.
The other way, when the temperature becomes lower, limitation is cancelled.
Model
For compressor
Pressure switches
High
Low
for control
Fuse
1~ 230V 50Hz
3N~ 400V 50Hz
CCP Timer
Setting time
For condenser fan motor
Internal thermostat
For control circuit
Fuse on PCB
18 PMML0545 rev.2 - 04/2021
RAS-(4-6)HV(R/N)(C/P)2E
-
Cut-Out MPa
Cut-In MPa
Cut-Out MPa
Cut-In MPa
-
A
A
-
min.
-
A
Automatic Reset, Non-Adjustable (each one for each compressor)
4.15
3.20±0.15
0.20
0.30
50
-
Non-Adjustable
Automatic Reset, Non-Adjustable (each one for each motor)
RAS-(4-6)H(R/N)(C/P)2E
-0.05
-0.15
-
2 x 20
3
5