Technical data

© MHS Boilers Ltd
221106 Draft Copy E&OE
33
QAA73 #
Description Range
150 & 225
Standalone
Defaults
150 & 225
Cascade
Master
Defaults
150 & 225
Cascade Slave
Defaults
H712
5th Historical Fault – Number of Occurrences.
H713
5th Historical Fault – Operating Phase.
H714
5th Historical Fault – Operating Error Code
H715
Current Historical Fault – Number of Occurrences
H716
Current Historical Fault – Operating Phase.
H717
Current Historical Fault – Operating Error Code
H718
Hours run burner
0 ... 131070
hrs
0 0 0
H719
Hours run heating mode
0 ... 131070
hrs
0 0 0
H720
Hours run DHW heating
0 ... 131070
hrs
0 0 0
H721
Hours run zone
0 ... 131070
hrs
0 0 0
H722
Start counter 0 ... 327675 0 0 0
H727
Current Fault Code – ALBATROS Error Code 0 ... 583
H728
1st Historical Fault – ALBATROS Error Code
H729
2nd Historical Fault – ALBATROS Error Code
H730
3rd Historical Fault – ALBATROS Error Code
H731
4th Historical Fault – ALBATROS Error Code
H732
5th Historical Fault – ALBATROS Error Code
H732
Current Historical Fault – ALBATROS Error Code
H755
Measured value of ionization current -
Module Controller
Legend
1. Module Power Isolator
2. Infrared Output to Flue Gas Analyser
Optional Extra.
3. Module Numerical Indicator
4. Temporary Connection Port For QAA73 Unit
5. Indication of System Pressure
(Not Used)
6. Indication of Module Over Temperature
7. Indication of Module Lockout
8. Indication of Module Burner Activation
9. Module Lockout Reset Button (To be pressed for at
least 3 Seconds)
10. Display Alteration Button
11. Commissioning Mode Activation Button