Desa CF26NR installation manual Inspecting Burners, Cleaning Maintenance

Page 19

INSPECTING BURNERS

Pilot Flame Pattern

Burner Flame Pattern

Burner Primary Air Holes

Main Burner

CLEANING AND MAINTENANCE

Cleaning Burner Injector Holder And Pilot Air Inlet Hole

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INSPECTING BURNERS

Check pilot flame pattern and burner flame patterns often.

PILOT FLAME PATTERN

Figure 36 shows a correct pilot flame pattern. Figure 37 shows an incorrect pilot flame pattern. The incorrect pilot flame is not properly heating the thermocouple. When the thermocouple cools, the heater will shut down.

If pilot flame pattern is incorrect, as shown in Figure 37

turn heater off (see To Turn Off Gas to Appliance, page 17)

see Troubleshooting, pages 21 through 23

Pilot Burner

Thermocouple

Figure 36 - Correct Pilot Flame Pattern

Pilot Burner

Thermocouple

Figure 37 - Incorrect Pilot Flame Pattern

BURNER PRIMARY AIR HOLES

Air is drawn into the burner through the holes in the fitting at the burner entrance. These holes may become blocked with dust or lint. Periodically inspect these holes for any blockage and clean if needed. Blocked air holes will create soot.

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 become blocked by debris or rust, with no flame present. If so, turn off heater and let cool. Remove blockage. Blocked burner flame holes will create soot.

CLEANING AND

MAINTENANCE

WARNING: Turn off heater and let cool before cleaning.

CAUTION: You must keep control areas, burner, and circulating air passageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a qualified service person. Heater may need more frequent cleaning due to excessive lint from carpeting, bedding material, pet hair, etc.

BURNER FLAME PATTERN

Figure 38 shows a correct burner flame pattern. Figure 39 shows an incorrect burner flame pattern. If burner flame pattern is incorrect,

turn heater off (see To Turn Off Gas to Appliance, page 17)

see Troubleshooting, pages 21 through 23

Approx. 3-6"

Above Top

of Logs

Figure 38 - Correct Flame Pattern with Control Knob Set to High Flame

More Than

8" Above

Top of Logs

Figure 39 - Incorrect Flame Pattern with Control Knob Set to High Flame

CLEANING BURNER INJECTOR HOLDER AND PILOT AIR INLET HOLE

The primary air inlet holes allow the proper amount of air to mix with the gas. This provides a clean burning flame. Keep these holes clear of dust, dirt, lint, and pet hair. Clean these air inlet holes prior to each heating season. Blocked air holes will create soot. We recommend that you clean the unit every three months during operation and have heater inspected yearly by a qualified service person.

We also recommend that you keep the burner tube and pilot assembly clean and free of dust and dirt. To clean these parts we recommend using compressed air no greater than 30 PSI. Your local computer store, hardware store, or home center may carry com- pressed air in a can. You can use a vacuum cleaner in the blow position. If using compressed air in a can, please follow the directions on the can. If you don't follow directions on the can, you could damage the pilot assembly.

1.Shut off the unit, including the pilot. Allow the unit to cool for at least thirty minutes.

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105443-01E

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Contents Unvented VENT-FREE Natural GAS BAY Front Fireplace OWNER’S Operation and Installation ManualWhat to do if YOU Smell GAS Safety Information Table of ContentsLocal Codes Product IdentificationAIR for Combustion and Ventilation Product FeaturesRemote Control Accessories UnpackingConfined and Unconfined Space Determining FRESH-AIR Flow for Fireplace LocationDetermining if You Have a Confined or Unconfined Space Ventilation Air From Inside Building InstallationVentilation AIR Check GAS TypeLocating Fireplace BUILT-IN Fireplace InstallationRough Opening for Installing in Wall Removing Brick Liner Retainer Mantel Clearances for BUILT-IN InstallationOptional Mantel Installation Assembling Brass TrimRemoving Hood Screws Installing Blower Assembly GA3450TPlace log set back on the unit For Built-In InstallationInstallation Items Connecting to GAS SupplyInstallation Items Needed Connecting Fireplace to GAS SupplyPressure Testing Fireplace Gas Connections Pressure Testing Gas Supply Piping SystemChecking GAS Connections Optional Wireless HAND-HELD Remote Control Accessories Installing LogsCghrc & Cghrct Series Installing Receiver Operating Fireplace Installing Wireless Remote Control AccessoryFor Your Safety Read Before Lighting Installing 9-Volt Battery in ReceiverShutting Off Heater Manual Lighting ProcedureLighting Instructions To Turn OFF GAS To ApplianceCghrcta Series Operation Optional Remote OperationThermostat Control Operation Cghrc Series OperationInspecting Burners Cleaning MaintenanceAir Passageways SpecificationsWiring Diagram CabinetObserved Problem Possible Cause Remedy TroubleshootingRefer to Air for Combustion and Venti Top CF26NR Illustrated Parts BreakdownKEY Part Number Description QTY Parts List20-1 11-1 11-2 20-2 20-3 KEY CF26NR Description QTY Parts Centrals Replacement PartsTechnical Service Service HintsOwners Registration Form Tape Brass Accent Trim GA6095 Receiver and HAND-HELD Remote Control KIT Cghrc SeriesInformation Video Warranty Information