Desa VDCFRNB Inspecting Burners, Cleaning Maintenance, Pilot Flame Pattern, Burner Flame Pattern

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Inspecting Burners

Check pilot flame pattern and burner flame pat- terns often.

PILOT FLAME PATTERN

Figure 45 shows a correct pilot flame pattern. Figure 46 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the ther- mocouple. 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 46

turn fireplace off (see To Turn Off Gas to Appli- ance, page 22 for Thermostat-Controlled Mod- els or page 24 for Remote-Ready Models)

see Troubleshooting, page 29

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

Figure 45 - Correct Pilot Flame Pattern (Propane/LP Remote-Ready Shown)

Pilot Burner

Thermocouple

Figure 46 - Incorrect Pilot Flame Pattern

(Propane/LP Remote-Ready Shown)

BURNER FLAME PATTERN

Figure 47 shows a correct burner flame pattern. Figure 48 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 48

turn fireplace off (see To Turn Off Gas to Appli- ance, page 22 for Thermostat-Controlled Mod- els or page 24 for Remote-Ready Models)

see Troubleshooting, page 29

Figure 47 - Correct Burner Flame Pattern

Figure 48 - Incorrect Burner Flame

Pattern

Cleaning and

Maintenance

WARNING: Turn off fireplace and let cool before cleaning.

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

WARNING: Failure to keep the primary air opening(s) of the burner(s) clean may result in sooting and property damage.

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 fireplace inspected yearly by a qualified service person.

116526-01B

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Contents Shown with Optional Cabinet Mantel/Hearth Base Accessory Thermostat Models Vdcftnb and Vdcftpb Remote-Ready ModelsVdcfrpb and Vdcfrnb Table of Contents Safety Information Safety Information Local Codes Optional Remote Control AccessoriesProduct Features Product IdentificationAir for Combustion Ventilation Hood AssemblyAIR for Combustion Ventilation Providing Adequate VentilationDetermining FRESH-AIR Flow for Fireplace Location Ventilation AIR Ventilation Air From Inside BuildingVentilation Air From Outdoors Check GAS Type InstallationMinimum Clearance to Combustible Materials InstallationInstallation Items Fireplace ClearancesDepth Built-In Fireplace InstallationActual Framing Height Front WidthTop Louver Bottom Louver Optional Mantel InstallationMantel Shelf Side of FireboxRemoving Upper Louver Installing Optional Blower Accessory GA3450TAInstalling Blower Accessory Remote Blower Bracket Switch Plate ScrewOpen lower louver door by swinging door down see , For Built-In Installation Extension CordBlower Bracket Connecting to GAS Supply Connecting equipment shutoff valve to heater control Installation Items NeededChecking GAS Connections Gas Meter Pressure Testing Fireplace Gas ConnectionsEquipment Open Shutoff Valve Closed Gas Regulator or Gas Control Valve EquipmentInstalling Receiver Receiver Volt Terminal Battery Wires Battery ClipInstalling 9-Volt Battery in Hand-Held Remote Control Unit Terminal W Terminal R Optional Wall Switch GWMS2 Remote-Ready Models OnlyControl Valve To Wall Thermostat or Switch Feed wires through rectangular slotsLighting Instructions Installing LOG SET and ScreenFor Your Safety Read Before Lighting Operating FireplaceThermostat Control Operation Manual Lighting ProcedureOperating Fireplace To Turn OFF GAS To ApplianceOperating Blower AUTO/OFF/ON SwitchPiezo Flame Control Ignitor Button Adjustment Knob Pilot Ignitor Burner ElectrodePilot Burner Ignitor Electrode HRC200 Optional Hand-HeldRemote Operation Thermostat Series ModelOptional GWMT1 Wall mounted Thermostat Optional GWMS2 Wall Mounted SwitchBurner Flame Pattern Cleaning MaintenanceInspecting Burners Pilot Flame PatternCabinet Cleaning MaintenanceWiring Diagram LOG SetObserved Problem Possible Cause Remedy TroubleshootingTroubleshooting Initial operation Processes and log curing When heated, vapors fromMote-Ready Models Only Power is low Slight smoke or odor duringGas leak. See Warning Rating Variable 17,000/26,000 Btu/Hr SpecificationsThermostat Models Remote-Ready Models Rating Variable 17,000/30,000 Btu/HrFirebox Models VDC Illustrated Parts BreakdownOuter Casing Parts ListOuter Casing Top BaffleIllustrated Parts Breakdown Thermostat ModelsVdcftpb and Vdcftnb Parts List Vdcfrnb and Vdcfrpb REMOTE-READY ModelsBrass Flare Adapter Fitting Accessories Equipment Shutoff Valve GA5010THERMOSTAT-CONTROLLED Blower KIT GA3450T Accessories WALL-MOUNT ON/OFF SwitchWALL-MOUNT Thermostat Parts Under Warranty Replacement PartsService Hints Technical Service116526-01B Warranty Information Keep this WarrantyLimited Warranty VENT-FREE Compact Classic Hearth