Desa CGB3930NRA, CGD3924NRA, CGB3924NRA Inspecting Burners, Pilot Flame Pattern, Main Burner

Page 17

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.

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Contents What to do if YOU Smell GAS Remote ReadyUnvented Natural GAS LOG Heater Safety Information Remote Control Accessories Product FeaturesProduct Identification Local CodesConfined Space and Unconfined Space Providing Adequate VentilationUnusually Tight Construction Determining if You Have a Confined or Unconfined Space AIR for Combustion VentilationDetermining FRESH-AIR Flow for Heater Location Ventilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Check GAS Type InstallationMinimum Fireplace Clearance to Combustible Materials LOG Sizing RequirementsMinimum Noncombustible Material Clearances Unvented Natural GAS LOG Heater InstallationMantel Clearances Determining Minimum Mantel Clearances When Using a HoodFloor Clearances Determining Minimum Mantel ClearancesInstallation Items Needed Installing Damper Clamp Accessory for Vented OperationInstalling Heater Base Assembly Attaching Flexible Gas Hose to Heater Connecting to GAS SupplyChecking GAS Connections Installing Remote RE- Ceiver UnitInstalling 9-Volt Battery in Receiver Installing Wireless Remote Control AccessoryInstalling Logs CGD3924NRA Tered over the burner U bend Installing Logs on Models CGB3924PRA and CGB3930PRALighting Instructions For Your Safety Read Before LightingOperating Heater Unvented Natural GAS LOG Heater Operating Manual Lighting ProcedureTo Turn OFF GAS To Appliance Optional Remote OperationMain Burner Inspecting BurnersPilot Flame Pattern Service Hints Unvented Natural GAS LOG Heater Cleaning and MaintenanceTechnical Service Cleaning Burner Injector Holder and Pilot AIR Inlet HoleObserved Problem Possible Cause Remedy TroubleshootingMaintenance, Unvented Natural GAS LOG Heater TroubleshootingGas leak. See Warning statement at CGD3924NRA Unvented Natural GAS LOG Heater Illustrated Parts BreakdownKEY Part Number Description QTY Parts ListCGB3924NRA CGB3930NRA KEY CGB3924NRA CGB3930NRA Part Number Description QTY Parts Under Warranty Unvented Natural GAS LOG Heater Replacement PartsParts not Under Warranty Parts CentralWiring Diagram AccessoriesSpecifications Warranty Information