Operation
Continued
5.Turn control knob counterclockwise
to the PILOT position. Press in control knob for five (5) seconds (see
Figure 31).
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 allow 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 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 sec- onds after lighting pilot. After 30 seconds, release control knob.
Note: If pilot goes out, repeat steps 3 through 7. This heater has a safety inter- lock system. Wait one (1) minute for sys- tem to reset before lighting pilot again.
8.Turn control knob counterclockwise
to desired heating level. The burn- ers should light. Set control knob to any heat level between HI and LO.
9.Turn control knob clockwise 
to the PILOT position to shut off burner leaving pilot lit.
| HI |
LO | OFF |
Pilot |
Ignitor | Pilot Burner | |
Electrode | ||
|
Thermocouple
Figure 32 - Pilot
TO TURN OFF GAS
TO APPLIANCE
1.Turn control knob clockwise 
to the OFF position.
2.Close equipment shutoff valve (see Figure
16, page 15).
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 burners to remain fully on, without modulating down in most cases.
MANUAL LIGHTING
PROCEDURE
1.Follow steps 1 through 5 under Lighting Instructions, page 21.
2.Press control knob and light pilot with match.
3.Keep control knob pressed in for 30 sec- onds after lighting pilot. After 30 seconds, release control knob. Now follow step 8, under Lighting Instructions, column 1.
Ignitor Button | Control Knob |
|
Figure 31 - Control Knob and Ignitor
Button Location
22 | www.desatech.com |