35
into operation if the inner distribution screen has been
dented during the service operation, call the factory for
recommendations. Use care when removing and
handling the burner, Sharp objects or impact may
damage or tear the metal fiber surface rendering the
burner unfit for service.
8.6
COMBUSTION AND VENTILATION AIR
Check frequently to be sure that the flow of combustion air
to the appliance is not obstructed. Unless air is piped
directly to the heater combustion air must be provided to the
mechanical room with openings sized per the requirements
of the current B149 or National Fuel Gas Code. The Valiant
FT is setup to allow outdoor combustion air to be connected
directly to the appliance. It is highly recommended that
combustion air be connected directly to the appliance. For
installations in a common boiler room with atmospheric
appliances or if there is the possibility of negative pressure
in the boiler room, the air inlet must be piped directly to the
Valiant FT.
COMBUSTIBLE MATERIALS
CAUTION
Keep appliance clear from combustible materials; do not
store GASOLINE and other flammable vapors and
liquids in the proximity of the appliance.
8.7
FREEZE PROTECTION FOR INDOOR &
OUTDOOR INSTALLATIONS
Installations are not recommended in areas where the
danger of freezing exists. Proper freeze protection must be
provided for appliances installed outdoors, in unheated
mechanical rooms or where temperatures may drop to the
freezing point or lower. If freeze protection is not provided
for the system, a low ambient temperature alarm is
recommended for the mechanical room. Damage to the
appliance by freezing is non-warrantable.
Location - Heating boilers, hot water supply boilers or water
heaters must be located in a room having a temperature of
at least 40ºF (5ºC).
A mechanical room operating under a negative pressure
may experience a downdraft in the flue of an appliance that
is not firing. The cold outside air may be pulled down the
flue and causing a frozen heat exchanger. This condition
must be corrected to provide adequate freeze protection.
CAUTION
Verify proper operation after servicing!
Summary of Contents for Valiant-FT II Series
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Page 40: ...36 PART 9 PIPING DIAGRAMS Figure 40 Single Boiler Hydronic Heating Zoned Piping...
Page 41: ...37 Figure 41 Multiple Boiler Hydronic Heating Zoned Piping...
Page 42: ...38 Figure 42 Single Boiler with DHW Tank Hydronic Heating Zoned Piping...
Page 43: ...39 PART 10 PARTS LIST...
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Page 60: ...56 PART 11 TUBING DIAGRAM...
Page 61: ...57 PART 12 WIRING DIAGRAM...
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