Operating Heater
Continued
5.Turn control knob counterclockwise 
to the PILOT position. Press in control knob for five (5) seconds (see Figure 28).
Note: You may be running this heater for the first time after hooking up to gas sup- ply. If so, the control knob may need to be pressed in for 30 seconds or more. This will allow air to bleed from the gas system.
6.With control knob pressed in, press and release ignitor button. This will light pilot. The pilot is attached to the front burner. If needed, keep pressing ignitor button until pilot lights.
Note: If pilot does not stay lit, contact a qualified service person or gas supplier for repairs. Until repairs are made, light pilot with match. To light pilot with match, see Manual Lighting Procedure.
7.Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob.
• If control knob does not pop out when released, contact a qualified service person or gas supplier for repairs.
Note: If pilot goes out, repeat steps 3 through 7. This heater has a safety interlock system. Wait one (1) minute for system to reset before lighting pilot again.
8.Turn control knob counterclockwise 
to desired heating level. The burners should light. Set control knob to any heat level between HI and LO.
CAUTION: Do not try to ad- just heating levels by using the equipment shutoff valve.
Ignitor Button | Control Knob |
|
Figure 28 - Control Knob and Ignitor
Button Location
| Ignitor Electrode | |
Thermocouple | Pilot | |
Burner | ||
|
Figure 29 - Pilot
TO TURN OFF GAS
TO APPLIANCE
Shutting Off Heater
Turn control knob clockwise 
to the OFF position.
Shutting Off Burners Only (pilot stays lit)
Turn control knob clockwise 
to the PILOT position.
THERMOSTAT CONTROL
OPERATION
The thermostat control knob can be set to any comfort level between HI and LO. The ther- mostat will gradually modulate the heat output and flame height from higher to lower settings or pilot, in order to maintain the comfort level you select. The ideal comfort setting will vary by household depending upon the amount of space to be heated, the output of the central heating system, etc.
Note: Selecting the HI setting with the control knob will cause the burner to remain fully on, without modulating down in most cases.
MANUAL LIGHTING
PROCEDURE
1.Follow steps 1 through 5 under Lighting Instructions, page 20 .
2.Depress control knob and light pilot with match.
3.Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob. Now follow step 8 under
Lighting Instructions, column 1.
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