61
11-1 ELECTRODES
11 - GENERAL MAINTENANCE AND CLEANING
DANGER
Before servicing, turn off electrical power to boiler at
service switch. Close manual gas valve to turn gas
supply OFF to boiler. Failure to comply will result in
death or serious injury.
!
11.4 Draining the Boiler
•
turn boiler off
• isolate electrical supply
• close boiler gas service cock
• allow boiler to cool
• drain boiler through onboard drain if available or
external drain valve.
11.5 Draining the Heating Circuit
• Follow all steps in 11.4.
•
Close central heating flow and return valves.
• Connect suitable pipe to drain point.
• Route it to suitable container.
• Open drain tap.
in
in
in
240013354 REV B [09/15/2021]
Summary of Contents for MAC-115
Page 2: ...MAC 205 ...
Page 4: ...MAH 165 ...
Page 77: ...73 APPENDIX A WIRING DIAGRAMS A 2 MODEL 125 Heat Only 240013354 REV B 09 15 2021 ...
Page 78: ...74 APPENDIX A WIRING DIAGRAMS A 3 MODEL 165 Heat Only 240013354 REV B 09 15 2021 ...
Page 79: ...75 APPENDIX A WIRING DIAGRAMS A 1 MODEL 115 Combi 240013354 REV B 09 15 2021 ...
Page 80: ...76 APPENDIX A WIRING DIAGRAMS A 4 MODEL 150 Combi 240013354 REV B 09 15 2021 ...
Page 81: ...77 APPENDIX A WIRING DIAGRAMS A 5 MODEL 205 Combi 240013354 REV B 09 15 2021 ...
Page 82: ...78 NOTES 240013354 REV B 09 15 2021 ...
Page 118: ...34 MODEL 125 Heat Only 125 HEAT ONLY WIRING DIAGRAM PN 240011430 REV P 09 15 2021 ...
Page 119: ...35 MODEL 165 Heat Only 165 HEAT ONLY WIRING DIAGRAM PN 240011430 REV P 09 15 2021 ...
Page 120: ...36 115 COMBI WIRING DIAGRAM MODEL 115 Combi PN 240011430 REV P 09 15 2021 ...
Page 121: ...37 MODEL 150 Combi 150 COMBI WIRING DIAGRAM PN 240011430 REV P 09 15 2021 ...
Page 122: ...38 MODEL 205 Combi 205 COMBI WIRING DIAGRAM PN 240011430 REV P 09 15 2021 ...
Page 127: ...43 Low Water Cutoff Detail LOW WATER CUTOFF NO NO YES PN 240011430 REV P 09 15 2021 ...
Page 132: ...48 3 FAULT SOLUTION SECTIONS PN 240011430 REV P 09 15 2021 ...
