Part number 550-100-192/0917
3
STOP!! — Read before proceeding
®
gas
-
fired
water
boiler
—
70/110/155
User’s information Manual
Have this boiler serviced/inspected by
a qualified service technician, at least
annually.
Failure to comply with the above could result
in severe personal injury, death or substantial
property damage.
When calling or writing about the boiler—
Please have the boiler model number from
the boiler rating label and the CP number
from the boiler cabinet.
Should overheating of boiler occur or gas supply fail
to shut off
,
DO NOT
turn off or disconnect electrical supply to
circulator. Instead, shut off the gas supply at a location external to the
appliance
.
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 op-
erate the boiler until the boiler has been either
replaced or completely repaired, inspected,
and you are sure that the boiler and all compo-
nents are in good condition and fully reliable.
Otherwise, by operating this boiler, you will cause
a fire or explosion hazard, and an electrical shock
hazard, leading to serious injury, death, or substan-
tial property damage. See the instructions at right.
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 freshwater (shorting out of electrical compo-
nents, 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 equip-
ment contaminated with saltwater or polluted water will no
longer be covered under warranty and should be replaced.
Electrical Damage
— If any
electrical component
or
wiring
came into contact with water, or was suspected to have come
into contact with water, do not use this boiler. Immediately call
a qualified service technician to inspect the boiler and to replace
any part of the control system and any gas control that has been
in contact with water.
Failure to adhere to the guidelines on this page can result in severe per-
sonal injury, death or substantial property damage
.
Boiler service and maintenance —
• To avoid electric shock,
interrupt electrical
supply
before performing maintenance.
• To avoid severe burns,
allow boiler to cool
before
performing maintenance.
• You must
maintain
the boiler as outlined in the
manual and have the boiler
started up and ser-
viced 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
automatically shut down the boiler should air or vent be
blocked. If vent or air blockage is easily accessible and
removable, remove it. The boiler should attempt to restart
within an hour. If blockage is not obvious or cannot be
removed, have the boiler and system checked by a quali-
fied service technician.
Combustion air —
•
DO NOT obstruct the combustion air intake or
expose the air intake to corrosive chemicals
(see next page).
Carbon monoxide detector —
• A carbon monoxide detector that is wired on the same
electrical circuit as the boiler is strongly recommended.
Boiler water —
• Do not use petroleum-based cleaning or sealing compounds
in boiler system. Gaskets and seals in the system may be dam-
aged. This can result in substantial property damage.
•
Leaks in boiler or piping must be repaired at once
to prevent make-up water. Use this boiler ONLY in
a closed-loop system.
Continual fresh make-up water
will reduce boiler life. Mineral buildup in heat exchangers
reduces heat transfer, overheats the materials, and causes
failure. Addition of oxygen carried in by make-up water can
cause internal corrosion.
•
Do not add cold water to hot boiler.
Thermal
shock can cause heat exchanger to crack.
Freeze protection fluids —
• NEVER use automotive or standard glycol antifreeze. Use
only freeze-protection fluids made for hydronic systems.
Follow all guidelines given by the antifreeze manufacturer.
Thoroughly clean and flush any replacement boiler system
that has used glycol before installing the new boiler. Use only
the products listed by Weil-McLain for use with this boiler.
See boiler manual for details.
Frozen Water Damage Hazard
Residences or buildings that are unattended in severely cold
weather, boiler system components failures, power outages, or
other electrical system failures could result in frozen plumbing
and water damage in a matter of hours. For your protection, take
preventative actions such as having a security system installed
that operates during power outages, senses low temperature,
and initiates an effective action. Consult with your boiler con-
tractor or a home security agency.
