Premier Ductable Heaters
www.lbwhite.com
Owner’s Manual • Premier 350
14
Start-Up Instructions
For initial start-up after heater installation, follow
steps 1-5. For normal start-up, set the thermostat
above room temperature.
1. Connect electrical cord to an approved electrical
outlet.
2. Set thermostat to desired room temperature.
3. A selector switch is located on the back of the
heater. This switch allows you to either heat or
ventilate (no heat). See Fig. 10 for selector switch
positions.
FIG. 10
A. Heating Mode Operation
a. Open all manual fuel supply valves. Check for gas
leaks using an approved leak detector.
b. Position the selector switch to heat.
See Fig. 10. A red light within the switch will come
on. The fan motor will start, the igniter will spark
and ignition will occur. The thermostat will cycle
the heater on or off based upon temperature
setting.
B. Ventilation Mode Operation
When the selector switch is positioned to vent,
the red light will NOT be on. The fan motor will start,
but the igniter will not spark, nor will ignition occur.
This feature is used only when air circulation is
required. The heater will not cycle on its thermostat
setting. To discontinue the ventilation feature, posi-
tion the switch to off or heat.
C. Off
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Position the switch to midpoint.
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ATTENTION
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new installations. The heater may attempt more
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purged from line and ignition takes place.
4. The direct spark ignition (DSI) control board
within this heater is self-diagnostic. The board
works in conjunction with a light emitting diode
(L.E.D.) built into the selector switch. The L.E.D.
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label applied to inside of burner access panel of
the heater. The troubleshooting label identi-
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this Owner’s Manual.
5. Gas Control Valve
• The gas control is a single stage design valve.
When 24 VAC is applied to the valve, it will opens
and delivers full gas output.
• The gas control valve has a manual shut off
feature incorporated into the valve assembly.
Ensure the indicator is turned to the ON position.
See Fig. 11.
FIG. 11
6. Do not exceed input rating stamped on name-
plate or manufacturer’s recommended burner
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certain that the primary air supply to main burner
is open and free of dust, dirt and debris for
complete, proper combustion.