9
Part Number 550-110-726/0703
GWA/GWI/GWS
Gas-Fired Water Boilers –
User’s Information Manual
❏
Maintenance procedures
Boiler area
To prevent potential of severe personal injury, death
or substantial property damage, eliminate all mate-
rials discussed below from the boiler vicinity. If
found:
• Remove products immediately from the area. If they
have been there for an extended period, call a
qualified service technician to inspect the boiler and
vent system for possible damage from acid
corrosion.
• If products cannot be removed, immediately call a
qualified service technician to install an outside
combustion air source for the boiler (if not already
installed).
1. Combustible/flammable materials — Do not store
combustible materials, gasoline or any other
flammable vapors or liquids near the boiler. Remove
immediately if found.
2. Air contaminants — See listing of contaminants on
page 2.
❏
Check daily
The boiler should be inspected and started annu-
ally, at the beginning of the heating season, only by
a qualified service technician. In addition, the main-
tenance and care of the boiler designated on page
3 and explained on the following pages must be
performed to assure maximum boiler efficiency and
reliability. Failure to service and maintain the boiler
and system could result in equipment failure, caus-
ing possible severe personal injury, death or sub-
stantial property damage.
The following information provides detailed instruc-
tions for completing the maintenance items listed
in the maintenance schedule, page 3. In addition to
this maintenance, the boiler must be serviced and
started up at the beginning of each heating season
by a qualified service technician.
See page 12 for
troubleshooting
procedures for
common problems.
Air openings
1. Verify that combustion and ventilation air openings to the boiler
room and/or building are open and unobstructed.
2.
GWI
and
GWS boilers
— Verify that boiler vent discharge
and air intake (GWS only) are clean and free of obstructions.
Remove any debris on the air intake or flue exhaust openings.
Pressure/temperature gauge
1. Make sure the pressure reading on the boiler pressure/
temperature gauge does not exceed 24 psig. Higher pressure
may indicate a problem with the expansion tank or gauge.
2. Contact a qualified service technician if problem persists.
❏
Component information
Do not attempt to place
boiler in operation if spill
switch cuts off gas flow. Im-
mediately call a service tech-
nician. Failure to do so can
cause severe personal in-
jury, death or substantial
property damage.
Spill switch (GWA only)
The Spill switch is attached to the draft
hood. It cuts off gas flow if the vent system
becomes blocked.
Rollout thermal fuse element
The Rollout TFE is located above the
burners. It cuts off gas flow should flame
rollout occur.
Do not attempt to place
boiler in operation if rollout
thermal fuse element cuts off
gas flow. Immediately call a
service technician. Failure to
do so can cause severe per-
sonal injury, death or sub-
stantial property damage.
❏
Check daily
