Desa CGB3930NRA Inspecting Burners, Pilot Flame Pattern, Main Burner, Operating Heater, Continued

Models: CGB3930NRA CGB3924NRA CGD3924NRA

1 28
Download 28 pages 61.36 Kb
Page 17
Image 17
INSPECTING

OWNER’S MANUAL

OPERATING

HEATER

Continued

IMPORTANT: This remote control has been specially engineered to take an air temperature sample every 5.5 minutes in the auto mode. It will not respond immediately to the tempera- ture setting being turned up or down.

IMPORTANT: The hand-held remote control unit must be near the heater. Do not keep the hand-held remote control unit too close to the heater. The thermostat on the hand-held re- mote control unit will heat up too quickly and turn the heater off.

3.Use the STATUS button on the hand- held remote control unit to see the operation mode being used and the temperature setting selected. A red light will come on beside the opera- tion mode being used when the sta- tus button is pressed.

4.To turn the burners off when operat- ing in the manual mode, press the OFF button. If operating in the auto mode, press the MAN button, then press the OFF button. The pilot will remain lit. IMPORTANT: To turn the pilot off, manually turn the control knob on the heater to the OFF position.

INSPECTING

BURNERS

Check pilot flame pattern and burner flame patterns often.

PILOT FLAME PATTERN

Figure 34 shows a correct pilot flame pattern. Figure 35 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 heater will shut down.

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

turn heater off (see To Turn Off Gas to

 

Appliance, page 16)

seeTroubleshooting, pages 19 through 21

Flame Adjustment Knob

Control Knob in On Position

 

IH

 

 

IL

ON

 

 

F

P

O

 

 

O

 

 

T

OFF

 

 

 

O

 

 

 

 

 

 

 

 

N

REMOTE

 

 

 

 

LO

 

 

 

 

 

 

 

 

 

Selector Switch in Remote Position

Figure 32 - Setting the Selector Switch, Control Knob, and Flame Adjustment Knob for Remote Operation

Pilot Burner

Thermocouple

Shows Temperature Setting

Allows Burners to be Turned On and Off with the Hand-Held Remote Unit.

The Log Heater Will Automati- cally Cycle Between Pilot and the Heat Setting That Has Been Selected.

HI

TEMP

MAN LO ON

AUTO OFF

STATUS

Increases Room Temperature

Decreases Room Temperature

Turns Burners On and Off

Shows Current Operation Mode

Figure 34 - Correct Pilot Flame Pattern

Pilot Burner

Thermocouple

Figure 35 - Incorrect Pilot Flame Pattern

Figure 33 - Thermostat Hand-Held Remote Control Unit Selections

MAIN BURNER

Periodically inspect all burner flame holes with the heater running. All slotted burner flame holes should be open with yellow flame present. All round burner flame holes should be open with a small blue flame present. Some burner flame holes may be- come blocked by debris or rust, with no flame present. If so, turn off heater and let cool. Either remove blockage or replace burner. Blocked burner flame holes will create soot.

105677

17

Page 17
Image 17
Desa CGB3930NRA, CGD3924NRA, CGB3924NRA Inspecting Burners, Pilot Flame Pattern, Main Burner, Operating Heater, Continued