Weil-McLain 550-141-830/1202 - Manual (Page 3)

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For Your Safety
Tips for steam systems:
Check boiler and system piping for leaks.
Continual makeup water will reduce boiler life.
Minerals can build up in sections, reducing
heat transfer and causing cast iron to overheat,
resulting in section failure.
Failure to maintain recom-
mended pH and to repair leaks can cause
section iron corrosion, leading to section
failure and leaks. Do not use petroleum-
based sealing or stop-leak compounds in
boiler systems. Damage to system components
can result.
Boiler water pH 7.0 to 8.5 is recommended.
For pH conditions outside 7.0 to 8.5 range or
unusually hard water areas (above 7 grains
hardness), consult local water treatment
company.
Do not add cold water to hot boiler. Thermal
shock can cause sections to crack.
Clean newly installed steam boiler to remove
oil, grease, and other foreign material. Failure
to properly clean can result in violent water
level fluctuations, water passing into steam
mains, or high maintenance costs on strainers,
traps and and vents. A qualified service techni-
cian should skim the boiler by following
instructions on page 10 of this manual.
Follow instructions below to
prevent severe personal injury, death or substan-
tial property damage:
Do not use crankcase drainings or any oil
containing gasoline. See burner manual for
proper fuel oil.
Do not attempt to start burner when excess
oil has accumulated in combustion chamber,
when unit is full of vapor, or when combus
tion chamber is very hot.
Do not start burner unless collector hood, flue
cap, jacket cap, breeching and burner mount-
ing door are secured in place.
Never burn garbage or paper in the boiler.
Never leave combustible material around
boiler.
DO NOT TAMPER WITH UNIT OR CONTROLS.
Always follow specific instructions when
starting up boiler or performing routine
maintenance or service.
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Follow instructions below to
prevent severe personal injury, death or substan-
tial property damage:
To avoid electric shock, turn off electrical
supply at switch on boiler and additional
external switches before performing service.
To avoid severe burns, allow boiler to cool
before performing service.
Do not block flow of combustion or ventilation
air to boiler.
Boiler must be connected to a flue with
sufficient draft at all times to assure proper
operation.
Do not use this boiler if any part has been
under water. Electrical and mechanical
failures may cause electric shock and fire
risks. Immediately call a qualified service
technician to inspect chimney or vent,
boiler and burner. Have the boiler flueways
cleaned and have the following replaced:
— all electrical and mechanical controls
— electrical wiring
— oil burner and controls
— insulation and chamber lining
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Part No. 550-141-830/1202