SiE25-110
Troubleshooting by Remote Controller Display / LED Display
Troubleshooting
189
Check No. 6
If the low pressure is abnormally low
Conception
Abnormally low pressure level is mostly caused by the evaporator side.
The following contents are provided based on field checking of service engineer.
Further, the number is listed in the order of degree of influence.
a. In cooling operation
Check items (Possible causes)
Judgment
1. Does the outdoor unit fan run normally?
1. Visual inspection
2. Is the indoor unit filter clogged?
2. Visual inspection
3. Is there clogging before or after the EV
(capillary)?
3. Check if there is a temperature
difference before and after EV
(capillary).
Check if the main valve unit of EV
operates (by noise, vibration).
4. Is the check valve clogged?
4. Check if there is a temperature
difference before and after check valve.
→
If YES, the check valve is caught.
5. Is the LPS normal?
5. Check continuity using a tester.
6. Is the indoor unit installed under such
conditions that short circuit easily
occurs?
6. Visual inspection
7. Is the refrigerant gas short?
7. Conduct refrigerant collection and
vacuum drying, and then add proper
amount refrigerant.
a. In heating operation
Check items (Possible causes)
Judgment
1. Does the outdoor unit fan run normally?
1.Visual inspection
2. Is the outdoor unit heat exchanger
clogged?
2. Visual inspection
3. Is the outdoor unit installed under such
conditions that short circuit easily
occurs?
3. Visual inspection
4. Is there clogging before or after the EV
(capillary)?
4. Check if there is a temperature
difference before and after EV
(capillary).
Check if the main valve unit of EV
operates (by noise, vibration).
5. Is the check valve clogged?
5. Check if there is a temperature
difference before and after check valve.
→
If YES, the check valve is caught.
6. Is the LPS normal?
6. Check continuity using a tester.
7. Is the refrigerant gas short?
7. Conduct refrigerant collection and
vacuum drying, and then add proper
amount refrigerant.
Summary of Contents for SkyAir Super Inverter 70 D Series
Page 11: ...SiE25 110 2...
Page 15: ...Model Name and Power Supply SiE25 110 6 Model Name and Power Supply...
Page 16: ...SiE25 110 Functions 7 Part 2 Functions 1 List of Functions 8 1 1 Functions 8...
Page 31: ...Specifications SiE25 110 22 Specifications...
Page 35: ...Wired Remote Controller SiE25 110 26 Remote Controller 1 2 Installation...
Page 36: ...SiE25 110 Wired Remote Controller Remote Controller 27...
Page 39: ...Wireless Remote Controller SiE25 110 30 Remote Controller...
Page 63: ...Settings Concerning Maintenance SiE25 110 54 Field Setting FUYP...
Page 64: ...SiE25 110 Settings Concerning Maintenance Field Setting 55 FHYP...
Page 65: ...Settings Concerning Maintenance SiE25 110 56 Field Setting FAYP...
Page 67: ...Settings Concerning Maintenance SiE25 110 58 Field Setting RZP100 125DV1 E RZP100DVAL E...
Page 68: ...SiE25 110 Settings Concerning Maintenance Field Setting 59 RZP125 140DTAL...
Page 107: ...Operation Range SiE25 110 98 Function and Operation 5 Operation Range 5 1 Operation Limits...
Page 133: ...Procedure of Self Diagnosis by Remote Controller SiE25 110 124 Troubleshooting...
Page 238: ...SiE25 110 Piping Diagrams Appendix 229 1 2 Twin System RZP100D RZP125D 3D034162...
Page 241: ...Wiring Diagrams SiE25 110 232 Appendix FUYP71BV1 FUYP100BV1 FUYP125BV1 3D027747...
Page 242: ...SiE25 110 Wiring Diagrams Appendix 233 FAYP71BV1 FAYP100BV1 3D027748...
Page 243: ...Wiring Diagrams SiE25 110 234 Appendix 2 2 Outdoor Units 2 2 1 50Hz RZP71DV1 3D032604...
Page 244: ...SiE25 110 Wiring Diagrams Appendix 235 RZP100DV1 RZP125DV1 3D032603...
Page 245: ...Wiring Diagrams SiE25 110 236 Appendix 2 2 2 60Hz RZP71DVAL 3D032880B...
Page 246: ...SiE25 110 Wiring Diagrams Appendix 237 RZP100DVAL 3D032881B...
Page 247: ...Wiring Diagrams SiE25 110 238 Appendix RZP125DTAL RZP140DTAL 3D032882B...
Page 251: ...SiE25 110 iv Index...