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SlimFit
™
commercial condensing gas
STOP! READ THIS BEFORE PROCEEDING . . .
Failure to adhere to the guidelines on this page
can result in severe personal injury, death or sub-
stantial property damage.
Boiler service and maintenance —
❏ To avoid electric shock, disconnect all electrical supplies to
the boiler before performing maintenance if wiring will be
exposed.
❏ To avoid severe burns, allow boiler to cool before perform-
ing maintenance.
❏ You must maintain the boiler as outlined in this manual
and
have the boiler started up and serviced at least
annually
by a qualified service technician to ensure boiler/
system reliability.
Boiler operation —
❏ Do not block flow of combustion or ventilation air to boiler.
This boiler is equipped with a control which will automati-
cally shut down the boiler should air or vent be blocked.
If vent or air blockage is easily accessible and removable,
remove it. If the boiler display indicates a manual reset
lockout, follow the procedure on page 7 to reset the boiler.
(If blockage is not obvious or cannot be removed, have the
boiler and system checked by a qualified service technician.)
❏ Do not allow contaminated air to enter the boiler room (or
air inlet pipe if direct vented). See page 8 for details.
If any part of a boiler, burner or its controls
has been sprayed with or submerged under
water, either partially or fully, DO NOT attempt
to operate the boiler until the boiler has
been either replaced or completely repaired,
inspected, and you are sure that the boiler
and all components are in good condition
and fully reliable.
boiler, you will cause a fire or explosion hazard,
and an electrical shock hazard, leading to serious
injury, death, or substantial property damage. See
the instructions at right.
Part number 550-100-117/0714
-
fired water boiler
Otherwise, by operating this
— User's Manual
❏ Should overheating occur or gas supply fail to shut off, do
not turn off or disconnect electrical supply to boiler. Instead,
shut off the gas supply at a location external to the appliance.
❏ Do not use this boiler if any part has been under water. Im-
mediately call a qualified service technician to inspect the
boiler and to replace any part of the control system and any
gas control, which has been under water.
Boiler water —
❏ Have boiler water chemistry checked at least annually by a
qualified service technician.
❏ DO NOT use petroleum-based cleaning or sealing com-
pounds in boiler system. Gaskets and seals in the system may
be damaged. This can result in substantial property damage.
❏ DO NOT use "homemade cures" or "boiler patent medi-
cines". Serious damage to boiler, personnel and/or property
may result.
❏ Continual fresh makeup water will reduce boiler life. Mineral
build-up in boiler heat exchanger reduces heat transfer, over-
heats the metal, and causes heat exchanger failure. Addition of
oxygen can cause internal corrosion in system components.
Leaks in boiler or piping must be repaired at once to prevent
makeup water.
❏ Do not add cold water to hot boiler. Thermal shock can cause
boiler heat exchanger to crack.
Saltwater Damage
— The exposure of boiler components to
saltwater can have both immediate and long-term effects. While the
immediate effects of saltwater damage are similar to those of fresh-
water (shorting out of electrical components, washing out of critical
lubricants, etc.), the salt and other contaminants left behind can lead
to longer term issues after the water is gone due to the conductive
and corrosive nature of the salt residue. Therefore, Weil-McLain
equipment contaminated with saltwater or polluted water will no
longer be covered under warranty and should be replaced.
Electrical Damage
— If any
came into contact with water, or was suspected to have come into
contact with water, replace the boiler with a new Weil-McLain boiler.
electrical component
or
wiring
3
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