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Part number 550-100-325/0419
88
AquaBalance
®
Series 2 Wall Mount Gas-fired Water Boiler – Boiler Manual
36 Annual startup(continued)
2. If flame is unsatisfactory at either high fire or low fire,
check combustion values. If combustion is properly
adjusted, turn off boiler and allow boiler to cool down.
Then remove burner and clean it thoroughly using a vac-
uum cleaner or compressed air. Do not use compressed
air to clean burner if performed inside a building.
3. To access the burner, remove the heat exchanger cover
plate following the procedure beginning on page 112.
4. If replacing the burner, ensure the burner gasket is in
good condition and correctly positioned. Follow all
instructions on page 113 to reinstall all components.
5. Restart the boiler.
6. Inspect the flame at high and low fire. If flame is still
not acceptable, check combustion values. If combustion
is properly adjusted, obtain a replacement burner from
Weil-McLain.
Check boiler relief valve
1. Inspect the relief valve and lift the lever to verify flow as in the
following warnings, excerpted from a relief valve manufac-
turer’s warning label. Before operating any relief valve, ensure
that it is piped with its discharge in a safe area to avoid severe
scald potential.
2. Read page 42 before proceeding further.
3. Follow instructions below or perform procedures per relief
valve manufacturer’s printed instructions.
Safety relief valves should be reinspected AT LEAST
ONCE EVERY THREE YEARS, by a licensed plumb-
ing contractor or authorized inspection agency, to
ensure that the product has not been affected by cor-
rosive water conditions and to ensure that the valve
and discharge line have not been altered or tampered
with illegally. Certain naturally occurring conditions
may corrode the valve or its components over time,
rendering the valve inoperative. Such conditions are
not detectable unless the valve and its components
are physically removed and inspected. This inspec-
tion must only be conducted by a plumbing con-
tractor or authorized inspection agency — not by
the owner. Failure to reinspect the boiler relief valve
as directed could result in unsafe pressure buildup,
which can result in severe personal injury, death or
substantial property damage.
Following installation, the valve lever must be
operated AT LEAST ONCE A YEAR to ensure that
waterways are clear. Certain naturally occurring
mineral deposits may adhere to the valve, rendering
it inoperative. When manually operating the lever,
water will discharge and precautions must be taken
to avoid contact with hot water and to avoid water
damage. Before operating lever, check to see that a
discharge line is connected to this valve directing
the flow of hot water from the valve to a proper
place of disposal. Otherwise severe personal injury
or property damage may result. If no water flows,
valve is inoperative. Shut down boiler until a new
relief valve has been installed.
4. After following the above warning directions, if the relief
valve weeps or will not seat properly, replace the relief valve.
Ensure that the reason for relief valve weeping is the valve and
not over-pressurization of the system due to expansion tank
waterlogging or under-sizing.
Check automatic air vents (if used
see
Review with owner
1. Review the User’s Information Manual with the
owner.
2. Emphasize the need to perform the maintenance
schedule specified in the User’s Information Manual
(and in this manual as well).
3. Remind the owner of the need to call a licensed
contractor should the boiler or system exhibit any
unusual behavior.
4. Remind the owner to follow the proper shutdown
procedure and to schedule an annual startup at the
beginning of the next heating season.
Reinstall jacket door after
servicing
Reinstall boiler jacket door after start-up or servicing.
The boiler jacket door must be securely fastened to the
boiler to prevent boiler from drawing air from inside
the boiler room. This is particularly important if the
boiler is located in the same room as other appliances.
Failure to keep the jacket door securely sealed and
fastened could result in severe personal injury or death.
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