Main Safety Devices - Hitachi SET FREE SIDE FLOW Serie Bedienungsanleitung

MAIN SAFETY DEVICES

12 MAIN SAFETY DEVICES
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Compressor Protection
The compressor is protected by the following devices and their combinations.
• High Pressure Switch: This switch cuts out the operation of the compressor when the discharge pressure exceeds the setting.
Oil Heater: This band type heater protects against oil foaming during cold starting, as it is energized while the compressor is
stopped.
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AC Fan Motor Protection
Internal thermostat: Embedded in the fan motor winding, this internal thermostat cuts out the operation of the fan motor when the fan
motor winding temperature exceeds the setting.
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Safety and control device setting for outdoor units
Model
For compressor
Pressure switch
High Cut-out
Cut-in
Fuse capacity
3N~ 400V 50Hz
CCP timer
Setting time
For condenser AC fan motor
Internal thermostat
DC Cut-out
AC Cut-out
Cut-in
For control circuit
Fuse capacity PCB1,5
Fuse capacity PCB3
CCP Timer: Enforced 3 minutes operation and stoppage.
23 PMML0390B REV.0 - 11/2015 - P5416649
RAS-8FSNM
-0.05
MPa 4.15
-0.15
MPa 3.20±0.15
A 40
min. 3
ºC 125±5
ºC 150±5
ºC 150±5
A 5
A 10
RAS-10FSNM
Automatic Reset, Non-Adjustable
(each one for each compressor)
-0.05
4.15
-0.15
3.20±0.15
40
Non-Adjustable
3
Automatic Reset, Non-Adjustable
(each one for each motor)
125±5
150±5
150±5
5
10
RAS-12FSNM
-0.05
4.15
-0.15
3.20 ±0.15
40
3
125±5
150±5
150±5
5
10