Desa and FVF30N, FVF18N, FVF24N installation manual Connecting to GAS Supply

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FIREPLACE MANUFACTURERS INCORPORATED

UNVENTED NATURAL GAS LOG HEATER

INSTALLATION

Continued

CONNECTING TO GAS SUPPLY

WARNING: A qualified ser- vice person must connect heater to gas supply. Follow all local codes.

Installation Items Needed

Before installing heater, make sure you have the items listed below.

Installation must include a manual 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 13).

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

CAUTION: Use pipe joint seal- ant that is resistant to liquid pe- troleum (LP) gas.

Install sediment trap in supply line as shown in Figure 13. Locate sediment trap where it is within reach for cleaning. Locate sedi- ment trap where trapped matter is not likely to freeze. A sediment trap traps moisture and contaminants. This keeps them from going into heater controls. If sediment trap is not installed or is installed wrong, heater may not run properly.

CAUTION: Avoid damage to regulator. Hold gas regulator with wrench when connecting it to gas piping and/or fittings.

piping (check local codes)

sealant (resistant to propane/LP gas)

manual shutoff valve *

A.G.A. Design-Certified

Manual Shutoff Valve With

1/8" NPT Tap

test gauge connection *

sediment trap

tee joint

pipe wrench

*An A.G.A. design-certified manual shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection.

WARNING: Never connect heater to private (non-utility) gas wells. This gas is commonly known as wellhead gas.

CAUTION: Use only new, black iron or steel pipe. Inter- nally-tinned copper tubing may

From Gas Meter (5" W.C.** to 10.5" W.C. Pressure)

Tee Joint

 

Pipe

3" Minimum

Nipple

 

Cap

 

Sediment

Trap

Approved Flexible Gas Hose (if allowed by local codes)

Gas

Regulator

be used in certain areas. Check your local codes. Use pipe of 1/2" diameter or greater to allow proper gas volume to heater. If pipe is too small, undue loss of pressure will occur.

Figure 13 - Gas Connection

* Minimum inlet pressure for purpose of input adjustment.

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Contents OWNER’S Operation and Installation Manual What to do if YOU Smell GASPatent Pending Safety Information Local Codes Unpacking Product Features Safety PilotProduct Identification OperationAIR for Combustion and Ventilation Providing Adequate VentilationUnusually Tight Construction Confined and Unconfined SpaceAIR for Combustion Ventilation Determining FRESH-AIR Flow for Heater LocationDetermining if You Have a Confined or Unconfined Space Ventilation AIR Ventilation Air From InsideBuilding Ventilation Air From OutdoorsInstallation InstallationCheck GAS Type Minimum Wall and Ceiling Clearances see FigureIf Using Mantel If Not Using MantelMinimum Noncombustible Material Clearances Determining Minimum Mantel Clearance When Using a Hood Mantel ClearancesFloor Clearances Determining Minimum Mantel ClearanceInstalling Damper Clamp Accessory for Vented Operation Installing Heater Base AssemblyChimney Minimum Permanent Height ft Flue Opening sq. ins Installation Items Needed Attaching Flexible Gas Hose to Heater Gas RegulatorConnecting to GAS Supply Test gauge connection Sediment trap Tee joint Pipe wrenchPressure Testing Gas Supply Piping System Pressure Testing Heater Gas ConnectionsChecking GAS Connections Test Pressures In Excess Of 1/2 PsigInstalling Logs Installing Heat Majic One- Piece Log SetFor Your Safety Read Before Lighting Operating HeaterLighting Instructions Inspecting Burners Troubleshooting Observed Problem Possible Cause RemedyMaintenance, Top Gas leak. See Warning statement atCleaning and Maintenance Service HintsTechnical Service Cleaning Burner Injector Holder and Pilot AIR Inlet HoleReplacement Parts AccessoriesSpecifications Illustrated Parts Breakdown Heat Majic FVF18N FVF24N FVF30NODS Pilot Parts List KEY Part Number for FVF18N FVF24N FVF30N Description QTYWarranty Information