L.B. White 350 Premier - Manual (Page 13)

ON
OFF
For initial start-up after heater installation, follow steps 1-6.
For normal start-up, simply set the thermostat above room
temperature.
1. Connect electrical cord to an approved electrical
outlet.
2. Set thermostat to desired room temperature.
3. This heater has a rocker style selector switch located
on the back of the heater. This switch allows you to
either heat or ventilate (no heat). See Fig. 9 for
selector switch positions.
FIG. 9
A. H Heating
a. Open all manual fuel supply valves. Check for gas
leaks using an approved leak detector. The gas
control valve on the heater has a manual shut-off
feature incorporated into the valve assembly. Make
sure the indicator on the valve is turned to the ON
position. See Fig 10.
b. When the selector switch is positioned to Heat, a red
light within the switch will be on. At this point, 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.
FIG. 10
B. VVentilation
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 typically when heat is not needed, but
air circulation is required. The heater will not cycle on
its thermostat setting. To discontinue the ventilation
feature, position the switch to off or heat. If you
desire to use the ventilation feature, the connection
of the gas supply (i.e. hose and regulator) to the fuel
source is not needed.
C. O Off
Position the switch to midpoint.
ATTENTION
■ It is normal for air to be trapped in gas hose on new
installations. The heater may attempt more than one
trial for ignition before air is finally 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. will flash a
specific continuous flash pattern depending on a
problem that occurs. Match specific flash pattern
given by L.E.D. to troubleshooting label applied to
heater. The troubleshooting label identifies the
causes of the problem as it relates to specific flash
patterns and remedies to correct the problems. See
also “Troubleshooting Data” within this Owner’s
Manual.
5. The gas control valve is a step opening control. When
a call for heat occurs, the valve will open to a rate
equal to half its total heat output. Depending upon
temperature requirements and thermostat setting,
the valve will then either remain at low heat rate
before thermostat is satisfied, or the valve will open
completely to its total capacity. If the valve opens to
its full capacity, it is designed to change back to half
its rate before thermostat is satisfied.
6. Do not exceed input rating stamped on nameplate or
manufacturer’s recommended burner orifice
pressure for size orifice(s) used. Make certain that
the primary air supply to main burner is open and
free of dust, dirt and debris for complete, proper
combustion.
Start-Up Instructions
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