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11 - GENERAL MAINTENANCE AND CLEANING
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.
Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous
operation.
Verify proper operation after servicing.
Perform regular service and maintenance by qualified service agency at least once every 12 months to
assure safe, trouble free operation and maximum efficiency.
Heat Exchanger cleaning kit is available for annual service of the boiler. See repair parts manual for part
number.
11.1 Beginning of Each Heating Season
• Check boiler area is free from combustible materials, gasoline, and other flammable vapors and corrosive liquids.
• Visually inspect combustion air and vent piping for proper operation. Check for and remove any obstruction to flow of
combustion air or vent gases. Immediately repair or replace pipe showing deterioration or leakage. Reassemble per
instructions in section 6. Ensure proper reassembly and resealing of system.
• Visually inspect condensate drain line for proper operation. Checking for deteriorated or plugged condensate drain line.
Verify condensate trap drains freely and clean as required.
• Test safety relief valve for proper operation. Refer to valve manufacturer's instructions packaged with relief valve.
• Examine heat exchanger, burner, condensate lines, and clean (if necessary) by following instructions in
section 11.3 - Component Replacement And Cleaning.
• Circulator pump and combustion air blower motor furnished with boiler are permanently lubricated from factory and require
no further lubrication. Lubricate field sourced pumps and/or motors according to pump and/or motor manufacturer's
instruction.
• Check following components are operating properly and are free of blockages or obstructions:
a.
air vent;
check venturi air inlet for blockage and clean as required;
b.
c.
verify pressure test port cap and combustion test cap are in place;
d.
verify supply and return sensors are properly clipped to pipes as close to the heat exchanger as possible;
e.
Check boiler for any sign of leaks.
• Check external low water cutoff operation (if installed).
Check operation by pressing test button on low water cutoff. "Low Water" LED on the external LWCO should illuminate
a.
and boiler shut down.
Every 5 years remove low water cutoff. Reinstall after cleaning.
b.
Every 10 years replace low water cutoff.
c.
• Visual inspection of flame through sight glass. Burner should be fully illuminated.
• Check heating system expansion tank.
DANGER
!
CAUTION
!
NOTICE
51
240012485 REV C [06/30/2019]
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