Part number 550-142-055/0411
GV90+ gas-fired water boiler — User’s Information Manual
6
DAILY
Maintenance
Boiler must
be serviced
and
maintained
Check boiler area
To prevent potential of severe personal injury, death or substantial property
damage, eliminate all materials discussed below from the boiler vicinity. If con-
taminants are found:
Remove products immediately from the area. If they have been there for an ex-
tended 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 — Products containing chlorine or fluorine, if allowed to contaminate
the boiler intake air, will cause acidic condensate in the vent and boiler. This will cause
significant damage to the vent and/or boiler if allowed to continue. Read the list of potential
materials listed on page 4 of this manual. If any of these products are in the room from
which the boiler takes its combustion air, they must be removed immediately or the boiler
combustion air must be supplied from outside. See WARNING above.
Check air openings
1. Verify that combustion and ventilation air openings to the boiler room and/or building
are open and unobstructed.
2. Verify that boiler vent discharge and air intake are clean and free of obstructions. Remove
any debris on the air intake or flue exhaust openings.
Check boiler 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.
2. Contact a qualified service technician if problem persists.
User maintenance procedures
The boiler should be inspected and started annually, at the beginning of the heat-
ing season, only by a qualified service technician. In addition, the maintenance
and care of the boiler designated on page 5 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,
causing possible severe personal injury, death or substantial property damage.
The following information provides detailed instructions for completing the
maintenance items listed in the maintenance schedule, page 5. 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.
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