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3.2.8 “Parameter” Mode ................................................... pag. 32
3.2.8.1 Installer and User programmable Operation
Parameters ............................................... pag. 32
3.2.8.2 Installer programmable Operation
Parameters by previously entering
the service code ...................................... pag. 33
3.2.9 “Data” Mode ............................................................ pag. 34
3.2.9.1 Installer and User programmable
parameters ............................................... pag. 34
3.2.9.2 Installer programmable parameters
by previously entering the
service code............................................. pag. 34
3.2.10 “Test” Mode ............................................................. pag. 35
3.2.11 “Operation Time” Mode ........................................... pag. 35
3.3 Heating Mode Operation.......................................................... pag. 36
3.3.1 Heating Mode Operation by Room Thermostat............. pag. 36
3.3.2 Heating Mode Operation by Outer Sensor.................... pag. 36
3.3.3 Heating Mode Operation by Outer Compensator .......... pag. 37
3.4 DHW Mode Operation. ............................................................. pag. 37
3.4.1 DHW Mode Operation by Storage Tank NTC Sensor ... pag. 37
3.4.2 DHW Mode Operation by Storage Tank Thermostat ..... pag. 37
3.5 Burner Pressure Adjustment Test ........................................... pag. 38
ERRORS ................................................................. pag. 39
4.1 Blank Display ................................................................. pag. 39
4.2 The Boiler doesn’t fulfill the DHW Production Request. ......... pag. 39
4.3 Ignition Anomalies ................................................................. pag. 39
4.4 Block Errors ................................................................. pag. 39
4.5 Error Codes ................................................................. pag. 40
4.5.1 Error Codes by Alarm.................................................... pag. 40
4.5.2 Error Codes related to local temperatures .................... pag. 40
4.5.3 Error Codes related to gas pressure, MBD,
AM-4 and AM-5 ............................................................ pag. 41
4.5.4 Error Codes related to global temperatures .................. pag. 41
MAINTENANCE .................................................. pag. 42
5.1 Main Features .................................................. pag. 42
5.2 Siphon Cleaning .................................................. pag. 42
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