OPERATING

5.

Slightly depress and turn control knob counterclockwise

to the PILOT

 

position. Press in control knob for five (5) seconds (see Page 20).

 

HEATER

 

 

 

Note: You may be running this heater for the first time after hooking up to gas

Continued

 

supply. If so, the control knob may need to be pressed in for 30 seconds. 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 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, page 22.

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 system to reset before lighting pilot again.

Thermocouple

Ignitor Electrode

Pilot Burner

Figure 21 - Pilot

If control knob does not pop out when released, contact a qualified service person or gas supplier for repairs.

8. Slightly depress and turn control knob counterclockwiseto desired

heating level. The burner should light. Set control knob to any heat level between HI and LO.

WARNING

Do not operate heater between PILOT and HIGH positions.

VARIABLE CONTROL OPERATION

The variable control valve can be set to any heat setting and flame height desired, by simply turning the control knob until that setting is attained. Even the lowest setting provides realistic, dancing yellow flames. Selecting higher settings produces greater heat output. This results in increased heating comfort.

CAUTION

Do not try to adjust heating levels by using the manual shutoff valve.

TO TURN OFF GAS TO APPLIANCE

Shutting Off Heater

 

 

1.

Press in and turn control knob clockwise

to the HIGH position.

2.

Turn control knob clockwise

to the pilot position.

3.

Press in control knob and turn clockwise

to the OFF position.

Shutting Off Burners Only (pilot stays lit)

1.

Turn control knob clockwise

to the HIGH position.

2.

Press in and turn control knob clockwise

to the pilot position.

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Desa CGD3924N installation manual Heater, Operating