18
OPERATING HEATER
Lighting Instructions (Cont.)
To Turn Off Gas To Appliance
Thermostat Control Operation
Manual Lighting Procedure
OPERATING HEATER
Continued
5. Turn control knob counterclockwise 
C-clockwise
Note: You may be running this heater for the first time after hooking up to gas supply. If so, the control knob may need to be pressed in for 30 seconds or more. This will al- low air to bleed from the gas system.
•If control knob does not pop out when released, contact a qualified service person or gas supplier for repairs.
6.With control knob pressed in, press and release ignitor but- ton. 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.
Note: If pilot goes out, repeat steps 3 through 7. This heater has a safety interlock system. Wait one (1) minute for sys- tem to reset before lighting pilot again.
8. Turn control knob counterclockwise 
C-clockwise
CAUTION: Do not try to adjust heating levels by using the equipment shutoff valve.
| HI |
OL | OFF |
| Pilot |
Ignitor Button | Control Knob |
|
Figure 27 - Control Knob and Ignitor Button Location | ||
Ignitor Electrode Pilot Burner | Ignitor Electrode | Pilot |
|
| Burner |
TO TURN OFF GAS
TO APPLIANCE
Shutting Off Heater
Turn control knob clockwise Clockwise
to the OFF position.
Shutting Off Burners Only (pilot stays lit)
Turn control knob clockwise Clockwise
to the PILOT position.
THERMOSTAT CONTROL
OPERATION
The thermostat control knob can be set to any comfort level between HI and LO. The thermostat 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, pages 17 and 18.
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.
Propane/LP | Thermocouple | Natural Gas |
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