GWA/GWI/GWS
Gas-Fired Water Boilers –
User’s Information Manual
2
Part Number 550-110-726/0703
Please read this page first
Failure to adhere to the guidelines on this page can result in severe
personal injury, death or substantial property damage.
Air contamination
13. To prevent potential of severe personal injury or death, check
for products or areas listed in table below before installing
boiler. If any of these contaminants are found, do one of the
following:
•
Remove contaminants permanently. —
or —
•
Isolate boiler and provide outside combustion air. See
applicable codes for further information. —
or —
•
For
GWS
boilers only — Duct combustion air from outside
to the boiler air intake.
Boiler water
8. DO NOT use petroleum-based cleaning or sealing compounds
in boiler system. Water seal deterioration will occur, causing
leakage between sections and damage to heating system
components. This can result in substantial property damage.
9. DO NOT use "homemade cures" or "boiler patent medicines".
Serious damage to boiler, personnel and/or property may
result.
10. Continual fresh makeup water will reduce boiler life. Mineral
buildup in sections reduces heat transfer, overheats cast iron,
and causes section failure. Addition of oxygen and other gases
can cause internal corrosion. Leaks in boiler or piping must
be repaired at once to prevent makeup water.
11. DO NOT add cold water to hot boiler. Thermal shock can
cause sections to crack.
Boiler operation
4. DO NOT block flow of combustion or ventilation air to boiler.
GWS
boilers are 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.
GWI
and
GWA
boilers are equipped with controls which will
automatically shut down the boiler should the vent be blocked.
Should the boiler shut down due to blockage, the GWI device
will automatically reset, but the GWA device must be reset or
replaced only by a qualified installer/service technician.
5. Should overheating occur or gas supply fail to shut off, do not
turn off or disconnect electrical supply to pump. Instead, shut
off the gas supply at a location external to the appliance.
6. 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.
7. Have the building monitored when it is vacant for an extended
period. Safety controls can shut down the boiler at any time.
The loss of heat can result in significant damage due to
freezing.
Service and maintenance
1. To avoid electric shock, disconnect electrical supply before
performing maintenance.
2. To avoid severe burns, allow boiler to cool before performing
maintenance.
3. 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 technician to ensure boiler/system reliability.
Products to avoid
Spray cans containing chloro/fluorocarbons
Permanent wave solutions
Chlorinated waxes/cleaners
Chlorine-based swimming pool chemicals
Calcium chloride used for thawing
Sodium chloride used for water softening
Refrigerant leaks
Paint or varnish removers
Hydrochloric acid/muriatic acid
Cements and glues
Antistatic fabric softeners used in clothes dryers
Chlorine-type bleaches, detergents, and cleaning solvents found in
household laundry rooms
Adhesives used to fasten building products and other similar products
Areas likely to have contaminants
Dry cleaning/laundry areas and establishments
Swimming pools
Metal fabrication plants
Beauty shops
Refrigeration repair shops
Photo processing plants
Auto body shops
Plastic manufacturing plants
Furniture refinishing areas and establishments
New building construction
Remodeling areas
Garages with workshops
Glycol — potential fire hazard —
12. All glycol is flammable when exposed to high temperatures.
If glycol is allowed to accumulate in or around the boiler or
any other potential ignition source, a fire can develop. In order
to prevent potential severe personal injury, death or substantial
property damage from fire and/or structural damage:
•
Never store glycol of any kind near the boiler or any potential
ignition source.
•
Inspect the boiler and system regularly for leaks. Have any
leaks repaired immediately to prevent possible accumulation
of glycol.
•
Never use automotive antifreeze or ethylene glycol in the
system. Using these glycols can lead to hazardous leakage
of glycol in the boiler system.
