Desa FLAME-MAX UNVENTED (VENT-FREE) NATURAL GAS LOG HEATER Operation And Installation Manual page 23

Unvented (vent-free) natural gas log heater flame-max 18" & 24" variable manually-controlled model
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OPERATING
HEATER
Continued
103309
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 on page 21. If
you don't smell gas, go to the next step.
5. Slightly depress and turn control knob counterclockwise
position. Keep control knob pressed in for five (5) seconds (see Figure 21, page 22).
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.
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 light, 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 on page 24.
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.
• If control knob does not pop out when released, contact a qualified service
person or gas supplier for repairs.
Thermocouple
8. Slightly depress and turn control knob counterclockwise
position. The burner should light. Set control knob to any heat level between
HIGH and LO.
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.
Do not operate heater between PILOT and HIGH positions.
Do not try to adjust heating levels by using the manual shutoff valve.
Ignitor Electrode
Figure 22 - Pilot
WARNING
WARNING ICON
G 001
CAUTION
WARNING ICON
G 001
to the PILOT
C-clockwise
Pilot Burner
to the HIGH
C-clockwise
23

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