SiUS331708EA
Protection Control
Functions and Control
52
4. Protection Control
4.1
High Pressure Protection Control
This high pressure protection control is used to prevent the activation of protection devices due to an abnormal
increase in high pressure and to protect compressors against transient increases in high pressure.
Cooling operation
Pc > 3.53 MPa (512 psi)
After 10 sec.
Pc > 3.47 MPa (503 psi)
Pc < 3.38 MPa (490 psi)
Pc > 3.78 MPa (548 psi)
Pc > 3.63 MPa (526 psi)
Current step maintained
After 1 minute
After 10 sec.
High pressure not limited
High pressure limited
Pc: High pressure sensor detection value
Compressor upper limit
frequency: 1-step down from
current compressor frequency
When occurring 3 times within 30 minutes,
high pressure switch is activated without
high pressure standby, thus outputting the
error code
E3
.
Compressor upper limit frequency: Maximum
High pressure
standby
Compressor upper limit
frequency: 1-step up from
current compressor frequency
Lower limit
frequency
Summary of Contents for RXSQ24TAVJU
Page 1: ...Service Manual SiUS331708EA RXSQ24 36 48 60TAVJU Heat Pump 60 Hz...
Page 290: ...Wiring Diagrams SiUS331708EA 277 Appendix RXSQ48TAVJU 3D109546A...
Page 291: ...SiUS331708EA Wiring Diagrams Appendix 278 RXSQ60TAVJU 3D109547A...
Page 295: ...SiUS331708EA Wiring Diagrams Appendix 282 FXZQ05 07 09 12 15 18TAVJU 3D110443A...
Page 298: ...Wiring Diagrams SiUS331708EA 285 Appendix FXEQ07 09 12 15 18 24PVJU 3D098557A...
Page 300: ...Wiring Diagrams SiUS331708EA 287 Appendix FXSQ05 07 09 12 15 18 24 30 36 48 54TAVJU 3D110467B...
Page 301: ...SiUS331708EA Wiring Diagrams Appendix 288 FXMQ07 09 12 15 18 24 30 36 48 54PBVJU 3D093209B...
Page 302: ...Wiring Diagrams SiUS331708EA 289 Appendix FXHQ12 24 36MVJU 3D048116C...
Page 303: ...SiUS331708EA Wiring Diagrams Appendix 290 FXAQ07 09 12 18 24PVJU 3D075354C...
Page 309: ...SiUS331708EA Wiring Diagrams Appendix 296 VAM1200GVJU 3D073270D...