Operation
Continued
TO SELECT
HEATING LEVEL
WARNING: When running heater, set control knob at LOW, MED or HI locked positions. Never set control knob between locked positions. Poor combus- tion and higher levels of carbon monoxide may result.
CAUTION: Do not try to ad- just heating levels by using the equipment shutoff valve.
Turn thermostat control knob counterclock-
wise 
to the desired heating level. The main burner should light. Set control knob to any heat level between 1 and 5 (see Figure 21).
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Figure 21 - Burner Patterns
TO TURN OFF GAS
TO APPLIANCE
1.Turn control knob clockwise 
to the OFF position.
2.Turn off all electric power to the appliance if service is to be performed.
3.Close equipment shutoff valve (see Figure 16, page 13).
THERMOSTAT Control
OPERATION
The thermostatic control used on these models differs from standard thermostats. Standard thermostats simply turn on and off the burner. The thermostat used on this heater senses the room temperature. At times the room may exceed the set temperature. If so, the burner will shut off. The burner will cycle back on when room temperature drops below the set temperature. The control knob can be set to any heat level between 1 and 5. All plaques will turn off and on.
Note: The thermostat sensing bulb mea- sures the temperature of air near the heater cabinet. This may not always agree with room temperature (depending on housing construction, installation location, room size, open air temperatures, etc.) Frequent use of your heater will let you determine your own comfort levels.
MANUAL LIGHTING
PROCEDURE
1.Remove front panel (see Figure 7, page 9).
2.Follow steps 1 through 7 under Lighting Instructions, page 14.
3.With control knob pressed in, strike match. Hold match to pilot until pilot lights.
4.Keep control knob pressed in for 30 sec- onds after lighting pilot. After 30 seconds, release control knob. Now follow step 9, under Lighting Instructions, page 14.
5.Replace front panel.
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