25
Problem
Probable cause
Solution
Fans do not operate.
Electrical circuit problems.
Check the connections.
Internal circuit thermal cut-out activated.
Contact an approved Service Centre.
Fan surging
Duct network pressure too low.
Generate an additional pressure loss (refer to aeraulic
curves)
Reduced output in both
Heating and Cooling
mode
Compressor operating fault
Contact an approved Service Centre.
Low indoor air volume
Check filter, blower and duct.
Outdoor coil dirty
Clean the coil.
Insufficient refrigerant charge.
Add refrigerant charge.
Electric heater is not
operating.
No power supply.
Check the main fuse and the auxiliary fuses.
Heater circuit open (overheat)
Check the air volume or filter
Summary of Contents for Rooft@ir 100
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Page 28: ......
Page 29: ...APPENDIX ANNEXE ANLAGE ALLEGATO ANEXO APPENDIX ANNEXE ANLAGE ALLEGATO ANEXO ...
Page 50: ...APPENDIX ANNEXE ANLAGE ALLEGATO ANEXO XXII RT40 RT50 CONTROL pCO1 1 3 1 4 1 3 1 4 ...
Page 51: ...APPENDIX ANNEXE ANLAGE ALLEGATO ANEXO XXIII POWER AS L1 A1 A3 L2 L3 T1 T2 T3 ...
Page 52: ...APPENDIX ANNEXE ANLAGE ALLEGATO ANEXO XXIV 5 0 ...
Page 53: ...APPENDIX ANNEXE ANLAGE ALLEGATO ANEXO XXV RT60 RT70 RT80 CONTROL pCO1 ...
Page 54: ...APPENDIX ANNEXE ANLAGE ALLEGATO ANEXO XXVI RT100 RT110 CONTROL pCO1 ...
Page 56: ...APPENDIX ANNEXE ANLAGE ALLEGATO ANEXO XXVIII 5 0 5 0 ...
Page 57: ...APPENDIX ANNEXE ANLAGE ALLEGATO ANEXO XXIX ...
Page 58: ...APPENDIX ANNEXE ANLAGE ALLEGATO ANEXO XXX ...