Maintenance Required for Burner Frequency Check
If the burner is operating improperly, remove and clean or replace. Use a CO
2
analyzer to determine proper combustion. See Combustion test target ranges -
CO2 / Maximum CO for correct values.
Annually
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Warning
When removing the burner for inspection or boiler servicing, examine the sealing gaskets and
replace if damaged. Upon re-assembly, test all sealing areas to ensure there is no leakage of
combustible gas/air premix.
6.2.4 Heat exchanger
Maintenance Required for Heat Exchanger Frequency Check
In areas of poor gas quality, there may be a build-up of black plaque (typically sulfur).
Other fouling agents include: airborne dust, debris and volatiles.
With the burner removed, examine the heat exchanger for signs of contamination
and clean if necessary. Refer to instructions in Replacing the burner on page 74 for
access to the combustion chamber and heat exchanger.
Annually
□
6.2.5 Pump
Maintenance Required for Pump Frequency Check
Check that the pump is on in normal operation and that the water Δ°T is reasonable
for a given firing rate.
Annually
□
6.2.6 Gas piping
Maintenance Required for Gas Piping Frequency Check
Check for damage or leaks and repair as needed.
Annually
□
6.2.7 Touchscreen boiler controller
Maintenance Required for Boiler Controller Frequency Check
Check that boiler operation is consistent with the steps in the Touchscreen
Boiler Controller Manual.
Annually
□
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