12 MAIN SAFETY DEVICES
Compressor and fan motor protections
The following devices and their combinations protect the compressor and fan motor.
High-pressure switch
This switch cuts out the operation of the compressor when the discharge pressure exceeds the setting.
Oil heater
This band heater protects against the oil carry-over during the cold starting, as the band heater is energized
while the compressor is stopped.
Fan motor protection
Internal thermostat that is embedded in the fan motor winding: this internal thermostat cuts out the operation
of the fan motor when the temperature of the fan motor winding exceeds the setting.
Model
RASC(4-6)HNPE
RASC-(8/10)HNPE
High pressure switch for
compressor
Type
Automatic Reset, Non-Adjustable (each one for each compressor)
Cut-Out
MPa
-0.05
-0.05
4.15
4.15
-0.15
-0.15
Cut-In
MPa
+0.15
+0.15
3.20
3.20
-0.15
-0.15
Fuse
3N~ 400V 50Hz
a
20 x 2
40 x 2
Crankcase heater
Output
W
52.0
40.8
CCP Timer
-
Non-Adjustable
Setting Time
min.
3
3
Fan Motor Fuse
a
10 x 2
10 x 2
Internal Thermostat for fan motor
Cut-Out
ºC
165 ± 10
165 ± 10
Cut-In
ºC
130 ± 15
130 ± 15
Fuse capacity on PCB
a
5.0
5.0
MAIN SAFETY DEVICES
PMML0399B rev.0 - 11/2015
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