63
11 - GENERAL MAINTENANCE AND CLEANING
11.11 Safety Flue Thermostat -
DO NOT disable this
safety device.
Safety Flue Thermostat found on the flue inside the boiler,
interrupts flow of gas to the burner if the temperature
overheats.
After verifying the cause of the trip, press
for about 2
seconds.
11.12 Flue Pressure Switch (125-150 Only)
DO NOT disable this safety device.
This device, positioned inside the sealed chamber,
interrupts flow of gas to the burner if flue pressure
exceeds 1.6 in w.c. (4 mbar).
Verify if vent is blocked before resetting the boiler.
11.10 User Information
Advise and demonstrated to User the following important
information:
A.
How to light and turn off boiler. How to operate
system controls.
B. Importance of annual servicing of boiler to ensure safe
and efficient operation.
C. Servicing or replacement of parts shall be carried out
by a qualified personnel.
D.
Ensure boiler controls and room thermostat, if fitted,
are set to User's requirements.
E. Tell User about sealed system pressure.
F. Tell User if display is active and boiler has not
operated for 24 hours for heating or hot water, the
pump will automatically operate for 1 minute.
G.
Explain to User an internal frost thermostat is fitted in
boiler, and electrical supply to boiler must be left on
for thermostat to operate.
H. Show User position of pressure relief valve discharge
pipe.
I. Leave this Installation, Operation and Maintenance
Manual with User for use on future calls.
NOTICE
When servicing the appliance, check the condition and
position of flame sensing electrode and replace it if
necessary.
11.13 Replacement Parts
Perform Automatic Calibration procedure described in section
9.8 if one or more of the following components are replaced.
Check and adjust CO2% value as indicated in the Combustion
Table.
Components replaced:
• Primary heat exchanger
• Fan
• Gas valve
•
Gas orifice
• Burner
• Flame sensing electrode
• Control Parameter Key
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 ...