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Maintenance as outlined below can be performed by the owner unless otherwise noted.
The acidic nature of flue gasses condensing on the aluminum boiler sections will cause the
formation of aluminum oxide. This oxide formation is normal, is generally uniform throughout the
boiler sections, and represents a negligible mass of aluminum that is consumed by oxidation
during the life of the boiler. If left unchecked, this buildup may eventually cause blockage of the
flue gas passages in the boiler sections, reducing efficiency, and ultimately shutting down the
boiler due to lack of combustion air flow. Regular service and maintenance by a qualified service
agency must be performed to assure safe trouble free operation and maximum efficiency.
A. BEGINNING OF EACH HEATING SEASON
1. Annual service call by a qualified service agency, which includes:
a. Examine flue passages between boiler sections, burner, and condensate lines, and
clean if necessary following the annual examination and cleaning instructions in para
graph F on the next page.
b. Visually inspect venting and air intake system for proper function, deterioration or
leakage. If the vent or air intake show any signs of deterioration or leakage, repair or
replace them, immediately. Insure proper reassembly and resealing of the vent and air
intake system. c.Check for and remove any obstruction to the flow of combustion air
or venting of flue gases. Check the air baffle located inside 1 1/2"x2" flexible coupling
on the mixer, clean it if necessary and make sure to put it back. Refer to repair parts
diagram of mixer and pressure switch assembly for exact location.
d. Follow instructions for PLACING BOILER IN OPERATION.
e. Follow instructions for CHECK OUT PROCEDURE AND ADJUSTMENTS.
f. Visually inspect condensate drain line for proper operation and deterioration. Check
for plugged condensate drain line.
g. Check the silicone rubber seals between boiler sections. Insure that there are no
leaks. Use RTV silicone rubber adhesive sealant (available in caulking gun tubes)
rated for at least 400° F to replace or repair seals in locations where original seals
have deteriorated.
h. Check all gasketed joints for leakage, and tighten bolts or replace gaskets if necessary.
i. Remove jacket front and top panels and check for piping leaks around relief valve and
other fittings. Repair, if found. DO NOT use stop leak compounds.
2. Check that boiler area is free from combustible materials, gasoline, and other flammable
vapors and liquids.
3. Circulator pump and blower motor furnished with boiler are permanently lubricated from
factory and require no further lubrication. Additional or non-factory supplied pumps and/or
motors should be lubricated according to the pump and/or motor manufacturers instruction.
B. DAILY DURING HEATING SEASON
1. Check for and remove any obstruction to the flow of combustion air or venting of flue gases.
2. Check that boiler area is free from combustible materials, gasoline, and other flammable
vapors and liquids.
MAINTENANCE AND CLEANING