42
Acidic nature of fl ue gasses condensing on aluminum boiler
sections cause formation of aluminum oxide. This oxide
formation is normal, is generally uniform throughout boiler
sections, and represents negligible mass of aluminum that
is consumed by oxidation during life of boiler.
If left unchecked, this buildup may eventually cause
blockage of fl ue gas passages in boiler sections, reducing
effi ciency, and ultimately shutting down boiler due to lack
of combustion air fl ow.
Regular service and maintenance by qualifi ed
service agency must be performed to assure safe
trouble free operation and maximum effi ciency. It is
recommended to service boiler at least once every 12
months.
Beginning Of Each Heating Season
Schedule annual service call by qualifi ed service
1.
agency, which includes:
Examine fl ue passages between boiler sections,
A.
burner, and condensate lines, and clean if
necessary following annual examination and
cleaning instructions in paragraph F (below).
Visually inspect venting and air intake system for
B.
proper operation. If vent or air intake show any
signs of deterioration or leakage, repair or replace
immediately. Ensure proper re-assembly and re-
sealing of vent and air intake system.
Check for and remove any obstruction to fl ow of
C.
combustion air or venting of fl ue gases.
Follow instructions for “Startup” on page 22.
D.
Follow “Checkout Procedure & Adjustments” on
E.
page 29.
Visually inspect condensate drain line for proper
F.
operation. Check for deteriorated or plugged
condensate drain line.
Check all gasket joints for leakage, and tighten
G.
bolts or replace gaskets if necessary.
Remove jacket front and top panels and check for
H.
piping leaks around relief valve and other fi ttings.
Repair, if found. DO NOT use stop leak compounds.
Check boiler area is free from combustible materials,
2.
gasoline, and other fl ammable vapors and liquids.
Circulator pump and blower motor furnished with boiler
3.
are permanently lubricated from factory and require
no further lubrication. Lubricate additional or non-
factory supplied pumps and/or motors according to
manufacturer’s instruction.
Daily During Heating Season
Check for and remove any obstruction to fl ow of
1.
combustion air or venting of fl ue gases.
Check boiler area is free from combustible materials,
2.
gasoline, and other fl ammable vapors and liquids.
Monthly During Heating Season
Remove jacket front and top panels. Check for piping
1.
leaks around relief valve and other fi ttings. If found,
contact qualifi ed service agency to repair. DO NOT use
stop leak compounds.
Test relief valve. Refer to valve manufacturer’s
2.
instructions packaged with relief valve.
Visually inspect venting and air intake system for
3.
proper function. If vent or air intake show any signs
of deterioration or leakage, contact qualifi ed service
agency to repair or replace immediately and ensure
proper reassembly and resealing of vent and air intake
system.
Visually inspect PVC condensate drain pipe for proper
4.
operation. If drain pipe shows any signs of blockage,
leakage, or deterioration contact qualifi ed service
agency to clean, repair, or replace immediately.
Check air vent(s) for leakage.
5.
Periodically During Heating Season
Where low water cutoffs are used, periodic inspection of
low water cutoff is necessary, including fl ushing of fl oat
type devices. Refer to low water cut off manufacturer’s
specifi c instructions.
16 - MAINTENANCE AND CLEANING