Operating instructions

Part number 550-141-887/0800
27
AHE Series 4 Direct Vent Wall-Mounted Boilers — Boiler Manual
11b Service and maintenance — annual start-up
The boiler should be inspected and started annually, at the beginning of the heating season,
only by a qualified service technician. In addition, the maintenance and care of the boiler
designated in Table 5, page 26, and explained on the following pages must be performed to
assure maximum boiler efficiency and reliability. Failure to service and maintain the boiler and
system could result in equipment failure.
The boiler contains ceramic fiber and fiberglass materials. Use care when handling these
materials per instructions on page 48 of this manual. Failure to comply could result in severe
personal injury.
Electrical shock hazard — Turn off power to the boiler before any service operation on the
boiler except as noted otherwise in this manual. Failure to turn off electrical power could result
in electrical shock, causing severe personal injury or death.
Do not use petroleum-based cleaning or sealing compounds in boiler system. Severe
damage to boiler will occur, resulting in substantial property damage.
Reported problems
Inspect any problems reported by the owner and correct
before proceeding.
Boiler area
To prevent potential of severe
personal injury, death or substantial
property damage, do not store
combustible materials, gasoline or
any other flammable vapors or
liquids near the boiler. Remove
immediately if found.
Air openings
1. Verify that combustion and ventilation air openings
to the boiler room and/or building are open and
unobstructed.
2. Verify that boiler vent discharge is clean and free
of obstructions.
Flue gas vent system (and air piping)
1. Visually inspect entire flue gas venting system (and
air piping) for blockage, deterioration or leakage.
Repair any joints that show signs of leakage in
accordance with vent manufacturer’s instructions.
All joints must be gas-tight. When air is ducted to
boiler, verify that air inlet hose is connected and
properly sealed.
Failure to inspect for the above
conditions and have them repaired
can result in severe personal injury
or death.
2. The vent/air intake terminals must not be
obstructed or boiler will not function. If vent/air
intake piping is disassembled, it must be
reassembled and resealed according to Manual
Section 2, beginning on page 9.
Vent/air intake system must be
sealed gas-tight to prevent
possibility of flue gas spillage and
carbon monoxide emissions,
causing severe personal injury, death
or substantial property damage.
Main burner flames
1. Visually inspect main burner flames as directed
under “Start-up” on page 20.
Water piping
1. Check the boiler interior piping and all system
piping for signs of leaks.
2. Repair any leaks before proceeding.
Eliminate all system or boiler leaks.
Continual fresh makeup water will
reduce boiler life. Minerals can build
up in sections, reducing heat
transfer, overheating cast iron and
causing equipment failure. Leaking
water may also cause severe property
damage.
Inspect