Desa Tech CGN20T - Manual (Page 18)

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4. Wait five (5) minutes to clear out any gas. Then smell for gas, including 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.
5. Turn control knob counterclockwise C-clockwise to the PILOT position. Press 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 22 through
25. 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.
OPERATING
HEATER
WARNING ICON G 001
CAUTION
Do not try to adjust heating levels by using the manual shutoff valve.
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 C-clockwise to desired heating level. The
main burner should light. Set control knob to any heat level between HI and
LO.
Thermocouple
Ignitor Electrode
Figure 17 - Pilot
Pilot Burner