Riello 852T4 - Page 4

20151763
2
GB
Contents
6.5.5 Total number of start-ups ..............................................................................................................................................33
6.5.6 End of the Info level.......................................................................................................................................................33
6.6 Service level ..................................................................................................................................................................34
6.6.1 Displaying the Service values .......................................................................................................................................35
6.7 Parameters level ...........................................................................................................................................................36
6.7.1 Entering the password...................................................................................................................................................37
6.7.2 Backup ..........................................................................................................................................................................38
6.7.3 Restore..........................................................................................................................................................................39
6.8 Parameter modes of operation......................................................................................................................................41
6.8.1 Parameters without index, with direct display ...............................................................................................................41
6.8.2 Parameters without index, without direct display ..........................................................................................................42
6.8.3 Parameters with index, with or without direct display....................................................................................................44
7 Start-up, calibration and operation of the burner ..................................................................................................................46
7.1 Notes on safety for the first start-up ..............................................................................................................................46
7.2 Adjustments prior to ignition ..........................................................................................................................................46
7.3 Fan adjustment..............................................................................................................................................................46
7.4 Pre-setting of the points P0 (ignition), P1 (minimum) and P2 (maximum).....................................................................46
7.5 Burner start-up ..............................................................................................................................................................47
7.5.1 First burner start-up (manual operation)........................................................................................................................47
7.5.2 Checking the modulating operation (automatic operation)............................................................................................48
7.6 Combustion head ..........................................................................................................................................................49
7.7 Burner adjustment .........................................................................................................................................................50
7.7.1 Indicative calibration values ..........................................................................................................................................50
7.8 Switching off the burner.................................................................................................................................................50
7.9 Load controller inputs ....................................................................................................................................................50
7.10 Final checks (with burner operating) .............................................................................................................................51
8 Maintenance ..............................................................................................................................................................................52
8.1 Notes on safety for the maintenance.............................................................................................................................52
8.2 Maintenance programme ..............................................................................................................................................52
8.2.1 Maintenance frequency .................................................................................................................................................52
8.2.2 Safety test - with gas ball valve closed.................................................................................
.........................................52
8.2.3 Checking and cleaning ..................................................................................................................................................52
8.2.4 Safety components........................................................................................................................................................53
8.3 Opening and closing the burner ....................................................................................................................................53
8.4 Recommended preventive maintenance programme ...................................................................................................54
9 Operation, indications, diagnostic ..........................................................................................................................................55
9.1 Control sequence in the event of a fault........................................................................................................................55
9.2 List of error codes with operation using AZL21 Display ... ............................................................................................56
9.3 Resetting of burner control ............................................................................................................................................57
9.3.1 Diagnostics of the cause of the fault .............................................................................................................................57
9.3.2 Before starting with a new program module or when the program module is replaced.................................................58
9.4 Manual reset..................................................................................................................................................................59
9.4.1 Error during the reset process.......................................................................................................................................60
9.4.2 Reset .............................................................................................................................................................................60
10 List of parameters PME71.901... ..............................................................................................................................................61
A Appendix - Accessories ...........................................................................................................................................................64
B Appendix - Electrical panel layout...........................................................................................................................................65