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FreeStyle
™
-
gas
fired water boiler
STOP!! — Read before proceeding
Have this boiler serviced/in-
spected 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.
Failure to adhere to the guidelines on this page can result in severe personal
injury, death or substantial property damage.
Boiler service and maintenance —
To avoid electric shock, disconnect electrical sup-
•
ply 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 serviced at
least annually by a qualified service techni-
cian 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 qualified 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 com-
pounds in boiler system. Gaskets and seals in the system
may be damaged. 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.
Part number 550-142-851/0115
—
'
user
s information manual
• Should overheating 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.
• Do not use this boiler if any part has been
under water. 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 under water.
Do not add cold water to hot boiler. Thermal shock
•
can cause heat exchanger to crack.
Water chemistry
Water quality must be maintained as described in boiler
manual.
Water pH between 7.0 and 8.5
1. Maintain boiler water pH between 7.0 and 8.5. Check
with litmus paper or have chemically analyzed by water
treatment company.
2. If pH differs from above, consult local water treatment
company for treatment needed.
Hardness less than 7 grains
1. Consult local water treatment companies for unusually
hard water areas (above 7 grains hardness).
Chloride concentration must be
LESS THAN 50 ppm
1. Filling with chlorinated fresh water should be accept-
able since drinking water chloride levels are typically
less than 5 ppm.
2. Do not use the boiler to directly heat swimming pool
or spa water.
3. Do not fill boiler or operate with water containing chlo-
ride in excess of 50 ppm.
Verify that the water chemistry meets the limita-
tions and requirements of all other equipment
in the system.
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 replace-
ment boiler system that has used glycol before installing
the new boiler.
Antifreeze
1. Use only antifreeze listed by Williamson-Thermoflo as
suitable for use with FreeStyle™ Gas Boilers.
3
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