Desa Tech S39NT installation manual Inspecting Burners

VENT-FREE NATURAL GAS PEDESTAL STOVE

OPERATING

HEATER

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

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

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 C-clockwiseto desired heating level. The

burners should light. Set control knob to any heat level between HI and LO.

Ignitor Electrode

Thermocouple Pilot Burner

Figure 22 - Pilot

CAUTION: Do not try to adjust heating levels by using the equip- ment shutoff valve.

TO TURN OFF GAS

TO APPLIANCE

Shutting Off Heater

Turn control knob clockwise Clockwise to the OFF position.

Shutting Off Burners Only (pilot stays lit)

Turn control knob clockwise Clockwise to the PILOT position.

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 com- fort setting will vary by household depend- ing 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 Light- ing Instructions, page 13.

2.Depress control knob and light pilot with match.

3.Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob. Now follow step 8 in column 1.

OPERATING

OPTIONAL BLOWER

ACCESSORY

Light your gas appliance with the blower off. Turn the blower on to deliver heated air at the top louvers. The blower fea- tures a variable control which allows you to select the speed you desire.

If using the GA3650TA Blower Accessory:

In the ON position, the blower will start when the thermostat senses a sufficient increase in firebox temperature (approxi- mately 10 to 20 minutes depending on heat setting). Note: Your gas stove and thermostat blower will not turn on and off at the same time. The stove may run for several minutes before the blower turns on. After the heater modulates to the pilot position, the blower will con- tinue to run. The blower will shut off after the firebox temperature decreases.

Note: It is safe to operate stove with blower turned off. However, the blower helps distribute heated air from the stove.

Note: Periodically check the louvers of the firebox and remove any dust, dirt, or other obstructions.

INSPECTING

BURNERS

Check pilot flame pattern and burner flame patterns often.

PILOT FLAME PATTERN

Figure 23 shows a correct pilot flame pat- tern. Figure 24 shows an incorrect pilot flame pattern. (Note: Appearance of pilot assembly may vary by model). The incor- rect pilot flame is not touching the thermo- couple. This will cause the thermocouple to cool. When the thermocouple cools, the heater will shut down.

If pilot flame pattern is incorrect, as shown in Figure 24

•turn heater off (see To Turn Off Gas to Appliance)

•see Troubleshooting, pages 16 through 18

Thermocouple Pilot Burner

Figure 23 - Correct Pilot Flame Pattern

Thermocouple

Pilot Burner

Figure 24 - Incorrect Pilot Flame Pattern

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