Shut-Down Instructions - L.B.White Premier TS350DF Manual Del Usuario E Instrucciones

Shut-Down Instructions

If the heater is to be shut down for cleaning, mainte-
nance, or repair, follow steps 1-5. Otherwise, set the ther-
mostat below room temperature for standard shut-down.
Do not shut the heater off by the selector
switch. Doing so will remove power to the
heater, preventing cooling of heat cham-
ber. The burner end high limit switch will
trip.
1. Close the gas supply valve.
2. Allow the heater to burn off any fuel gas remaining in
the gas supply line.
3. Set the thermostat below room temperature. When
the thermostat cycles the burner off , the
fan motor will continue to run for 1 min-
ute, allowing the heat chamber to cool.
After 1 minute, the fan motor will shut off .
4. Position selector switch to off O
5. Disconnect the heater from its gas and electrical
supplies.
Premier Ductable Heaters
Gas Selector Valve
The heater is shipped from the factory with the fuel
selector valve in the propane gas (LP) position.
Ensure the fuel selector valve's handle is properly
positioned for the fuel being used.
1. This feature allows the heater to operate on either pro-
pane or natural gas without changing out the burner
orifi ce. The gas selector valve is located between
the gas control valve and the burner. Gas selection
is made by repositioning the valve's handle. THIS IS
NOT A MANUAL GAS SHUT OFF VALVE.
2. Refer to Figs. 12 and 13. The valve handle must be
properly positioned for the specifi c gas being used,
otherwise the unit will overheat or underheat.
FIG. 12
Handle
position
LP gas
FIG. 13
Handle
position
Natural
gas
3. The handle must be fully set at 90 degrees to gas fl ow
(propane gas) or parallel to gas fl ow (natural gas) for
proper operation. Do not operate the heater with the
valve handle set between either postion, otherwise
improper operation will occur.
Owner's Manual • Premier 350
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