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Weil-McLain 94 Series 3 Water and steam boilers — for Gas, Light Oil, & Gas/Light Oil-Fired Burners
38 Part No. 550-110-275/1018
Maintenance and troubleshooting
(continued)
Water chemistry and make-up
Do not use petroleum-based clean-
ing or sealing compounds in boiler
system. Severe damage to system
components can result, causing
substantial property damage.
Leaks in the boiler and piping sys-
tem must be repaired at once. If a
leak is detected around a gasket (i.e.
tankless heater, supply outlet, etc.)
tighten evenly and only enough to
stop the leak Over-tightening can
ruin a gasket.
The constant addition of makeup
water may damage the boiler.
If serious leaks occur, stop the
burner. Then gradually reduce boiler
pressure or temperature. Do not
attempt to make repairs while the
boiler is hot or under pressure.
If the boiler or system are experienc-
ing large amounts of makeup water,
extreme foaming or priming, scale in
the boiler, or internal corrosion or
pitting, contact a company special-
izing in boiler water chemistry.
DO NOT try "homemade cures"
or boiler "patent medicines" on the
market under various trade names,
as serious damage to the boiler,
personnel, and property may result.
Failure to comply with the above
could result in severe personal in-
jury, death or substantial property
damage.
Read before proceeding
The boiler must be inspected,
cleaned as necessary, started up and
adjusted by a qualified boiler service
technician.
Electrical shock hazard — Dis-
connect electrical supplies to the
boiler before servicing.
Explosion hazard — Shut off the
fuel supply to the boiler while servic-
ing.
Burn hazard — Allow the boiler to
cool before touching boiler surfaces
or contacting boiler water.
The boiler area must be kept clear
of combustible materials, gasoline
or other flammable vapor or liquids.
Do not block the flow of air to the
burner. Incomplete combustion, flue
gas spillage and carbon monoxide
emissions can occur.
Label all wires before disconnecting
for service. Wiring errors can cause
improper operation.
Verify proper operation of the boiler
and system after servicing.
The boiler contains ceramic fiber
and fiberglass materials. Follow the
instructions on page 36.
Failure to comply with the above
could result in severe personal in-
jury, death or substantial property
damage.
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