Desa Tech CGCFTP Inspecting Burner, To Turn Off Gas To Appliance, Pilot Flame Pattern, Continued

Models: CGCFTP CGCFTN

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TO TURN OFF GAS

18

OPERATING FIREPLACE

To Turn Off Gas To Appliance

 

Thermostat Control Operation

 

Manual Lighting Procedure

 

INSPECTING BURNER

 

Pilot Flame Pattern

 

Burner Flame Pattern

 

OPERATING FIREPLACE

Continued

TO TURN OFF GAS

TO APPLIANCE

Shutting Off Fireplace

1. Turn control knob clockwise ClockwiseShutting Off Fireplace to the OFF position.

2.Turn off all electric power to the appliance if service is to be performed.

INSPECTING BURNER

Check pilot flame pattern and burner flame pattern often.

PILOT FLAME PATTERN

Figure 32 shows a correct pilot flame pattern. Figure 33 shows an incorrect pilot flame pattern. The incorrect pilot flame is not properly heating the thermocouple. This will cause the thermocouple to cool. When the thermocouple cools, the fireplace will shut down.

If pilot flame pattern is incorrect, as shown in Figure 33

turn fireplace off (see To Turn Off Gas to Appliance)

Shutting Off Burner Only (pilot stays lit)

Turn control knob clockwise ClockwiseINSPECTING BURNER to the PILOT position.

THERMOSTAT

CONTROL OPERATION

The thermostatic control used on this fireplace differs from standard thermostats. Standard thermostats simply turn on and off the burner. The thermostat used on this fireplace senses the room temperature. The thermostat adjusts the amount of gas flow to the burner. This increases or decreases the burner flame height. At times the heater 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 measures the temperature of air near the fireplace cabinet. This may not always agree with room temperature (depending on housing construction, instal- lation location, room size, open air temperatures, etc.). Fre- quent use of your fireplace will let you determine your own comfort levels.

MANUAL LIGHTING

PROCEDURE

1.Follow steps 1 through 5 under Lighting Instructions, page 17.

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

3.Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob. Now follow step 8 under Lighting Instructions, page 17.

• see Troubleshooting, pages 20 through 22

Note: The pilot flame on natural gas units will have a slight curve, but flame should be blue and have no yellow or orange color.

Pilot Burner

Thermocouple

Pilot Burner

 

Thermocouple

 

 

Figure 32 - Correct Pilot

Figure 33 - Incorrect Pilot

Flame Pattern (Propane/LP

Flame Pattern (Propane/LP

Shown)

Shown)

BURNER FLAME PATTERN

Figure 34 shows a correct burner flame pattern. Figure 35 shows an incorrect burner flame pattern. The incorrect burner flame pattern shows sporadic, irregular flame tipping. The flame should not be dark or have an orange/reddish tinge.

Note: When using the fireplace the first time, the flame will be orange for approximately one hour until the log cures.

If burner flame pattern is incorrect, as shown in Figure 35

turn fireplace off (see To Turn Off Gas to Appliance)

see Troubleshooting, pages 20 through 22

Figure 34 - Correct Burner Flame Pattern

Figure 35 - Incorrect Burner Flame Pattern

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Desa Tech CGCFTP Inspecting Burner, To Turn Off Gas To Appliance, Pilot Flame Pattern, Thermostat Control Operation