OWNER’S MANUAL

OPERATING

FIREPLACE

Continued

TO TURN OFF GAS

TO APPLIANCE

Shutting Off Fireplace

1.Turn control knob clockwise to the OFF position.

2.Turn off all electric power to the ap- pliance if service is to be performed.

Shutting Off Burner Only (pilot stays lit)

Turn control knob clockwise to the PILOT position.

THERMOSTAT

CONTROL OPERATION

The thermostatic control used on this fire- place differs from standard thermostats. Standard thermostats simply turn on and off the burner. The thermostat used on this fireplace senses the room tempera- ture. The thermostat adjusts the amount of gas flow to the burner. This increases or decreases the burner flame height. At times the room may exceed the set temperature. If so, the burner will shut off. The burner will cycle back on when room temperature drops below the set temperature.

The control knob can be set to any heat level between HI and LO.

Note: The thermostat sensing bulb mea- sures the temperature of air near the fire- place cabinet. This may not always agree with room temperature (depending on housing construction, installation location, room size, open air temperatures, etc.). Frequent use of your fireplace will let you determine your own comfort levels.

INSPECTING

BURNER

Check pilot flame pattern and burner flame pattern often.

PILOT FLAME PATTERN

Figure 23 shows a correct pilot flame pattern. Figure 24 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touch- ing the thermocouple. This will cause the thermocouple to cool. When the thermo- couple cools, the fireplace will shut down.

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

turn fireplace off (seeTo Turn Off Gas to Appliance)

see Troubleshooting, pages 16 through 18

Thermocouple

Pilot Burner

Figure 23 - Correct Pilot Flame Pattern (Actual Pilot May Vary From Illustration)

Thermocouple

Pilot Burner

BURNER FLAME PATTERN

Figure 25 shows a correct burner flame pattern. Figure 26 shows an incorrect burner flame pattern. The incorrect burner flame pattern shows yellow tipping of the flame. It also shows the flame higher than one inch above the log.

Note: When using the fireplace the first time, the flame will be yellow for approxi- mately one hour until the log cures.

WARNING: If yellow tipping occurs, your fireplace could pro- duce increased levels of carbon monoxide. If burner flame pattern shows yellow tipping, follow in- structions at bottom of this page.

NOTICE: Do not mistake orange flames with yellow tipping. Dirt or other fine particles enter the fireplace and burn causing brief patches of orange flame.

If burner flame pattern is incorrect, as shown in Figure 26

turn fireplace off (seeTo Turn Off Gas to Appliance)

seeTroubleshooting, pages 16 through 18

Top of Flame About

One Inch Above Logs

Figure 25 - Correct Burner Flame Pattern

Yellow Tipping

MANUAL LIGHTING

PROCEDURE

1.Follow steps 1 through 5 under Lighting Instructions, page 14.

2.With control knob pressed in, strike match. Hold match to pilot until pi- lot lights.

3.Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob. Now follow step 8, page 14.

Figure 24 - Incorrect Pilot Flame Pattern

(Actual Pilot May Vary From Illustration)

Figure 26 - Incorrect Burner Flame Pattern

104277

15

Page 15
Image 15
Desa CGCF26TNA installation manual Inspecting Burner