![background image](http://html1.mh-extra.com/html/daikin/rxsq24tavju/rxsq24tavju_service-manual_2459946067.webp)
SiUS331708EA
Protection Control
Functions and Control
54
4.2
Low Pressure Protection Control
This low pressure protection control is used to protect compressors against transient decreases in low pressure.
Cooling operation
Heating operation
Pe
<
0.34 MPa
(49.3 psi)
Lower step
Pe
>
0.39 MPa
(56.6 psi)
Pe
<
0.34 MPa (49.3 psi)
Pe
<
0.07 MPa
(10.2 psi)
Low pressure not limited
Pe: Low pressure sensor detection value
Pe < 0.15 MPa
(21.8 psi)
Pe > 0.30 MPa
(43.5 psi)
Hot gas bypass valve: OFF
Hot gas bypass valve: ON
When occurring 3 times within 60 minutes,
the error code
E4
is output.
Low pressure
standby
Low pressure
limited
Current step
limited
Pe > 0.25 MPa (35.6 psi)
After 10 seconds
Pe < 0.15 MPa (21.3 psi)
Pe < 0.15 MPa (21.3 psi)
Pe > 0.19 MPa (27 psi)
Pe
<
0.07 MPa (10.2 psi)
Current step limited
Lower step limit
After 10 seconds
After 10 seconds
Low pressure not limited
Low pressure limited
Compressor upper limit
frequency: 1-step up from
current compressor frequency
Pe: Low pressure sensor detection value
Compressor upper limit
frequency: 6-step down from
current compressor frequency
When occurring 3 times within 60 minutes,
the error code
E4
is output.
Pe < 0.10 MPa
(14.2 psi)
Pe < 0.13 MPa
(19 psi)
Pe > 0.17 MPa
(24.7 psi)
Hot gas bypass valve: OFF
Hot gas bypass valve: ON
Low pressure
standby
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...