50
11.11 Safety Flue Thermostat -
DO NOT disable this safety
device.
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 ow of
gas to the burner if ue pressure exceeds 1.6 in w.c. (4 mbar).
Verify if vent is blocked before resetting the boiler.
NOTICE
When servicing the appliance, check the condition and
necessary.
11.10 User Information
Advise and demonstrated to User the following important
information:
A.
system controls.
B. Importance of annual servicing of boiler to ensure safe
C. Servicing or replacement of parts shall be carried out
D.
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.
boiler, and electrical supply to boiler must be left on
for frost protection 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.
11 - GENERAL MAINTENANCE AND CLEANING
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
•
• Burner
• Flame sensing electrode
• Spark electrode
240012564 REV A, [05/15/2019]