Desa A Operating, Heater, Thermostat Models, Continued, see Manual Lighting Procedure, page

Models: A

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OPERATING
C-clockwise

OPERATING

4. Wait five (5) minutes to clear out any gas. Then smell for gas, including

HEATER

near the floor. If you smell gas, STOP! Follow “B” in the safety information

at the top of page 17. If you don’t smell gas, go to the next step.

Thermostat Models

5. Turn control knob counterclockwise C-clockwiseto the PILOT position. Press

Continued

in control knob for five (5) seconds (see Figure 16).

 

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. This will allow air to bleed from the gas system.

 

• If control knob does not pop up when released, contact a qualified

 

service person or gas supplier for repairs.

 

 

6. With control knob pressed in, push down and release ignitor button. This

 

will light pilot. The pilot is attached to the front of burner. The pilot can be

 

seen through the glass panel. If needed, keep pressing ignitor button until

 

pilot lights.

 

 

Note: If pilot does not stay lit, refer to Troubleshooting, pages 24 through

 

27. Also 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 19.

 

 

7. Keep control knob pressed in for 30 seconds after lighting pilot. After 30

 

seconds, release control knob.

 

 

Ignitor Electrode

 

Thermocouple

Pilot Burner

 

 

Figure 17 - Pilot

Note: If pilot goes out, repeat steps 3 through 7. This heater has a safety interlock system. Wait one (1) minute before lighting pilot again.

8. Turn control knob counterclockwise HEATER to desired heating level. The main burner should light. Set control knob to any heat level between HI and LO.

CAUTION

WARNING ICON

G 001

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

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Desa A installation manual Operating, Heater, Thermostat Models, Continued, see Manual Lighting Procedure, page