AUTOFLAME Mk8 MM - Alarms and Warnings

Alarms and warnings are faults detected with the system operation. If an alarm occurs, the burner will
stop running, and if a warning occurs, the burner will continue to run. The following
options/parameters set whether system operation faults are set as alarms or warnings:
Option 13 EGA Fault Response
Option 14 Warning Response
Expansion Option 9 Burner Operation at High Water
Expansion Option 20 Burner Operation on Feed water Control Fault
Expansion Option 88 Action on Pressure Sensor Fault
Fault Message Description
1 EGA Internal Error Fault on EGA
 Alarm or warning depending on option 13
 Check EGA for fault description
2 No EGA Communications MM has lost communications with EGA
 Alarm or warning based on option 13 (warning if option 12 is set to monitoring only)
 Check parameter 10 is set to correct EGA version
 Check EGA operating mode is selected as ‘EGA with MM’
 Check wiring between EGA and MM (terminals 25 and 26 on MM)
3 O2 Upper Limit O2 value is above upper limit offset of commissioned value*
 Alarm or warning depending on option 13
 Check exhaust gas readings and option 19
4 O2 Absolute Limit O2 value is below absolute limit*
 Alarm or warning depending on option 13
 Check exhaust gas readings and option 25
5 O2 Lower Limit O2 value is below lower limit offset of commissioned value*
 Alarm or warning depending on option 13
 Check exhaust gas readings and option 22
6 CO2 Upper Limit CO2 value is above upper limit offset of commissioned value*
 Alarm or warning depending on option 13
 Check exhaust gas readings and option 20
7 CO2 Absolute Limit CO2 value is above absolute limit*
 Alarm or warning depending on option 13
 Check exhaust gas readings and option 26
8 CO2 Lower Limit CO2 value is below lower limit offset of commissioned value*
 Alarm or warning depending on option 13
 Check exhaust gas readings and option 23
9 CO Upper Limit CO value is above upper limit offset of commissioned value*
 Alarm or warning depending on option 13
 Check exhaust gas readings and option 21
10 CO Absolute Limit CO value is above absolute limit*
 Alarm or warning depending on option 13
 Check exhaust gas readings and option 27
11 NO Upper Limit NO value is above upper limit offset of commissioned value*
 Alarm or warning depending on option 13
 Check exhaust gas readings and parameter 94
Page 49 Mk8 MM End User Guide 22.05.2017
4 Errors and Lockouts
4.3 Alarms and Warnings