Desa VDCFTNA Connecting to GAS Supply, External Regulator With Vent Pointing Down

Page 16

INSTALLATION

Continued

CONNECTING TO GAS SUPPLY

WARNING: This appliance requires a 45° male flare fitting 5/8"-18 UNF (Unified National Fine Thread) inlet connection and the flexible gas line provided.

WARNING: A qualified service person must connect fireplace to gas supply. Follow all local codes.

WARNING:Neverconnectnatu- ralgasfireplacetoprivate(non-util- ity)gaswells.Thisgasiscommonly known as wellhead gas.

IMPORTANT: For natural gas, check gas line pressure before connecting fireplace to gas line. Gas line pressure must be no greater than 14" of water. If gas line pressure is higher, heater regulator damage could occur.

CAUTION: Never connect pro- pane/LP fireplace directly to the propane/LP supply. This fireplace requires an external regulator (not supplied). Install the external regulator between the fireplace and propane/LP supply.

For propane/LP units, the installer must supply an external regulator. The external regulator will reduce incoming gas pressure. You must reduce incoming gas pressure to between 11" and 14" of water. If you do not reduce incoming gas pressure, fireplace regulator damage could occur. Install external regulator with the vent pointing down as shown in Figure 21. Pointing the vent down protects it from freezing rain or sleet.

CAUTION:Useonlynew,black ironorsteelpipe.Internally-tinned copper tubing may be used in cer- tainareas.Checkyourlocalcodes. Usepipeof1/2"orgreaterdiameter to allow proper gas volume to fire- place. If pipe is too small, undue loss of volume will occur.

Installation must include an equipment shutoff valve, union and plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from heater (see Figure 22).

IMPORTANT: Install equipment shutoff valve in an accessible location. The equipment shutoff valve is for turning on or shutting off the gas to the appliance.

Check your building codes for any special re- quirements for locating equipment shutoff valve to fireplaces.

Apply pipe joint sealant lightly to male NPT threads. This will prevent excess sealant from going into pipe. Excess sealant in pipe could result in clogged fireplace valves.

WARNING: Use pipe joint sealant that is resistant to liquid petroleum (LP) gas.

Propane/LP

Supply

ExternalTank

Regulator

Vent

Pointing

Down

Figure 21 - External Regulator With Vent

Pointing Down

CSA Design-Certified

Equipment Shutoff Valve

With 1/8" NPT Tap*

Approved

Propane/LP

From External

Flexible

Regulator (11"

Gas Line

W.C.** to 14" W.C.

 

 

Pressure)

 

Natural

From Gas Meter

(5" W.C.** to

3" Minimum 10.5" W.C. Pressure)

Pipe Nipple Cap Tee Joint

Sediment Trap

Figure 22 - Gas Connection

*Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See Accessories, page 40.

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www.desatech.com

113133-01C

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Contents Thermostat Models Vdcftna and Vdcftpa Remote-Ready Models Shown with Optional Cabinet Mantel/Hearth Base AccessoryVdcfrpa and Vdcfrna Table of Contents Safety Information Safety Information Optional Remote Control Accessories Product FeaturesProduct Identification Local CodesAir for Combustion Ventilation Hood AssemblyTools Required Phillips screwdriver Providing Adequate Ventilation AIR for Combustion VentilationDetermining FRESH-AIR Flow for Fireplace Location Ventilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors Installation Check GAS TypeInstallation Installation ItemsFireplace Clearances Fireplace pilot and burner must be at least 18 above floorBuilt-In Fireplace Installation If you have not installed hood, follow instruc- tions onOptional Mantel Installation Route flexible gas line through access hole in hearth baseCheck all gas connections for leaks. See Installing Optional Blower Accessory GA3450TARemoving Upper Louver Remove 4 screws from upper louver see . Save these screws Installing Blower AccessoryOpen lower louver door by swinging door down see Figure For Built-In Installation Extension CordConnecting to GAS Supply External Regulator With Vent Pointing DownInstallation Items Needed Connecting equipment shutoff valve to heater controlChecking GAS Connections Pressure Testing Fireplace Gas Connections Equipment Shutoff ValveInstalling Receiver Installing 9-Volt Battery in Hand-Held Remote Control UnitRemove battery cover on back of remote control unit Replace battery cover onto remote control unitOptional Wall Switch GWMS2 Remote-Ready Models Only Remove jumper wire from control valve see ,Installing LOG SET and Screen For Your Safety Read Before LightingOperating Fireplace Lighting InstructionsManual Lighting Procedure Operating FireplaceTo Turn OFF GAS To Appliance Thermostat Control OperationAUTO/OFF/ON Blower Switch Operating BlowerDepress control knob and light pilot with match Optional Hand-Held Remote OperationOn/Off Series Model HRC100 Thermostat Series Model HRC200Optional GWMS2 Wall Mounted Switch Safety FeaturesAuto Shutoff Feature Key Pad Lock FeatureCleaning Maintenance Inspecting BurnersPilot Flame Pattern Burner Flame PatternCleaning Maintenance Wiring DiagramLOG Set CabinetTroubleshooting Observed Problem Possible Cause RemedyTroubleshooting When heated, vapors from Mote-Ready Models Only Power is lowSlight smoke or odor during Initial operation Processes and log curingGas leak. See Warning Specifications VDCFTPA, VdcfrpaIllustrated Parts Breakdown Firebox Models VDCParts List Thermostat Models Illustrated Parts BreakdownVdcftpa and Vdcftna Parts List REMOTE-READY Models Vdcfrna and VdcfrpaKEY Equipment Shutoff Valve GA5010 AccessoriesTHERMOSTAT-CONTROLLED Blower KIT GA3450T Accessories WALL-MOUNT ON/OFF SwitchReceiver and HAND-HELD Thermostat Remote Control KIT HRC200 Receiver and HAND-HELD Remote Control KIT HRC100Replacement Parts Service HintsTechnical Service Parts Under Warranty113133-01C Keep this Warranty Warranty InformationLimited Warranty VENT-FREE Compact Classic Hearth
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