Desa VDCFTNA 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 47 shows a correct pilot flame pattern. Figure 48 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 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

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

Pilot Burner

Thermocouple

Figure 48 - Incorrect Pilot Flame Pattern

(Propane/LP Remote-Ready Shown)

BURNER FLAME PATTERN

Figure 49 shows a correct burner flame pattern. Figure 50 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 50

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 49 - Correct Burner Flame Pattern

Figure 50 - 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.

113133-01C

www.desatech.com

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Contents Shown with Optional Cabinet Mantel/Hearth Base Accessory Thermostat Models Vdcftna and Vdcftpa Remote-Ready ModelsVdcfrpa and Vdcfrna Table of Contents Safety Information Safety Information Local Codes Optional Remote Control AccessoriesProduct Features Product IdentificationHood Assembly Air for Combustion VentilationTools Required Phillips screwdriver AIR 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 InstallationFireplace pilot and burner must be at least 18 above floor InstallationInstallation Items Fireplace ClearancesIf you have not installed hood, follow instruc- tions on Built-In Fireplace InstallationRoute flexible gas line through access hole in hearth base Optional Mantel InstallationInstalling Optional Blower Accessory GA3450TA Check all gas connections for leaks. SeeRemoving Upper Louver Installing Blower Accessory Remove 4 screws from upper louver see . Save these screwsOpen lower louver door by swinging door down see Figure Extension Cord For Built-In InstallationExternal Regulator With Vent Pointing Down Connecting to GAS SupplyConnecting equipment shutoff valve to heater control Installation Items NeededChecking GAS Connections Equipment Shutoff Valve Pressure Testing Fireplace Gas ConnectionsReplace battery cover onto remote control unit Installing ReceiverInstalling 9-Volt Battery in Hand-Held Remote Control Unit Remove battery cover on back of remote control unitRemove jumper wire from control valve see , Optional Wall Switch GWMS2 Remote-Ready Models OnlyLighting 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 Blower SwitchDepress control knob and light pilot with match Thermostat Series Model HRC200 Optional Hand-HeldRemote Operation On/Off Series Model HRC100Key Pad Lock Feature Optional GWMS2 Wall Mounted SwitchSafety Features Auto Shutoff FeatureBurner 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 VDCFTPA, Vdcfrpa SpecificationsFirebox Models VDC Illustrated Parts BreakdownParts List Illustrated Parts Breakdown Thermostat ModelsVdcftpa and Vdcftna Parts List Vdcfrna and Vdcfrpa REMOTE-READY ModelsKEY Accessories Equipment Shutoff Valve GA5010THERMOSTAT-CONTROLLED Blower KIT GA3450T Receiver and HAND-HELD Remote Control KIT HRC100 AccessoriesWALL-MOUNT ON/OFF Switch Receiver and HAND-HELD Thermostat Remote Control KIT HRC200Parts Under Warranty Replacement PartsService Hints Technical Service113133-01C Warranty Information Keep this WarrantyLimited Warranty VENT-FREE Compact Classic Hearth