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5.3 Protection and safety control
5.3.1 Protection and safety control for IVX Series
Compressor protection
The following devices and their combinations protect the compressor
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.
Safety and control device setting for the outdoor units
RAS-(3-6)H(V)RNM(1)E
Model
RAS-3HVRNME
RAS-4H(V)RNM1E
RAS-5H(V)RNM1E
RAS-6H(V)RNM1E
For compressor
High pressure switch
Cut-out
MPa
4.15
–0.05
–0.15
Cut-in
3.20±0.15
For control
Fuse
A
1φ 230V, 50Hz
40
40
50
50
3φ 400V, 50Hz
2X20
2X20
2X20
CCP timer
setting time
min
Non adjustable
3
For condenser fan
motor
°C
Automatic reset, non-adjustable (each one for each motor)
Internal thermostat
Cut-out
For control circuit
Fuse capacity on PCB
A
5
RAS-(8-12)HRNM
Model
RAS-8HRNM
RAS-10HRNM
RAS-12HRNM
For compressor
Automatic reset, non-adjustable (each one for each compressor)
High pressure switch
Cut-out
MPa
4.15
–0.05
–0.15
Cut-in
3.20±15
For control
Fuse
A
3 φ400V, 50Hz
40
CCP timer
setting time
min
Non adjustable
3
For condenser fan motor
Automatic reset, non-adjustable
(each one for each compressor)
Internal thermostat
DC
Cut-out
°C
120±5
Cut-out
120±5
AC
Cut-in
96±15
For control circuit
Fuse capacity on PCB 1.5
A
5
Fuse capacity on PCB 3
10
5 Control System
126
SMGB0060 rev. 1- 12/2010
Summary of Contents for RAS-10HRNM
Page 2: ......
Page 4: ...Index ii SMGB0060 rev 1 12 2010 ...
Page 56: ...2 Unit Installation 48 SMGB0060 rev 1 12 2010 ...
Page 117: ...RAS 4 6 HVRNM1E 4 Electrical Wiring 109 SMGB0060 rev 1 12 2010 4 ...
Page 118: ...RAS 4 6 HRNM1E 4 Electrical Wiring 110 SMGB0060 rev 1 12 2010 ...
Page 121: ...RAS 3HVRNS 4 Electrical Wiring 113 SMGB0060 rev 1 12 2010 4 ...
Page 122: ...RAS 4 6 HVRNS1E 4 Electrical Wiring 114 SMGB0060 rev 1 12 2010 ...
Page 123: ...RAS 8 10 HRNSE 4 Electrical Wiring 115 SMGB0060 rev 1 12 2010 4 ...
Page 124: ...4 Electrical Wiring 116 SMGB0060 rev 1 12 2010 ...
Page 145: ...Dry operation Continues in the next page 5 Control System 137 SMGB0060 rev 1 12 2010 5 ...
Page 147: ...Heating operation Continues in the next page 5 Control System 139 SMGB0060 rev 1 12 2010 5 ...
Page 148: ...5 Control System 140 SMGB0060 rev 1 12 2010 ...
Page 153: ...Activation for protection device control 5 Control System 145 SMGB0060 rev 1 12 2010 5 ...
Page 162: ...Activation for protection device control 5 Control System 154 SMGB0060 rev 1 12 2010 ...
Page 166: ...Preheating control of compressor 5 Control System 158 SMGB0060 rev 1 12 2010 ...
Page 168: ...5 Control System 160 SMGB0060 rev 1 12 2010 ...
Page 180: ...6 Optional functions 172 SMGB0060 rev 1 12 2010 ...
Page 224: ...8 Troubleshooting 216 SMGB0060 rev 1 12 2010 ...
Page 263: ...RAS 4 6 HVRNS1E 8 Troubleshooting 255 SMGB0060 rev 1 12 2010 8 ...
Page 264: ...RAS 8 10 HRNSE 8 Troubleshooting 256 SMGB0060 rev 1 12 2010 ...
Page 269: ...RAS 8 10 HRNSE 8 Troubleshooting 261 SMGB0060 rev 1 12 2010 8 ...
Page 337: ...RAS 4 6 HVRNM1E Cycle and structural parts 9 Spare Parts 329 SMGB0060 rev 1 12 2010 9 ...
Page 340: ...RAS 4 6 HRNM1E Cycle and structural parts 9 Spare Parts 332 SMGB0060 rev 1 12 2010 ...
Page 342: ... Electrical parts 9 Spare Parts 334 SMGB0060 rev 1 12 2010 ...
Page 354: ... Electrical parts 9 Spare Parts 346 SMGB0060 rev 1 12 2010 ...
Page 356: ...RAS 8 10 HRNSE Cycle and structural 9 Spare Parts 348 SMGB0060 rev 1 12 2010 ...
Page 359: ... Electrical parts 9 Spare Parts 351 SMGB0060 rev 1 12 2010 9 ...
Page 440: ...10 Servicing 432 SMGB0060 rev 1 12 2010 ...
Page 464: ...11 Electrical checks of main parts 456 SMGB0060 rev 1 12 2010 ...
Page 481: ......