Desa LMFP33NR Owner's Operation And Installation Manual

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Desa LMFP33NR Owner's Operation And Installation Manual Manual pdf 12 page image

111604-01AFor more information, visit www.desatech.comFor more information, visit www.desatech.com12INSTALLATIONContinuedMantel Clearances for Built-In InstallationIf placing mantel above built-in fireplace, you must meet minimumclearance between mantel shelf and top of fireplace opening.Figure 20 - Minimum Mantel Clearances for Built-In InstallationSupplied FireboxHood Must BeUsed at All TimesWire-meshScreenFireboxNoncombustibleMaterial MayProject Off thisSurface abovethe Firebox HoodMantel Shelf13" 16" 19" 21"2 1/2 "6"8"10"Note: All verticalmeasurements arefrom top of fireplacehood opening to bottomof mantel shelf.These minimumclearances replace anyother recommendedclearances supplied withyour ANSI Z21.11.2approved gas logs.Wall board or facingmaterial (abovefirebox) may be ofcombustible material,including decorativemantel ornaments orother similar projec-tions off of the facingmaterial.FramingMaterialNOTICE: If your installation does not meet the mini-mum clearances shown, you must do one of thefollowing:• raise the mantel to an acceptable height• remove the mantelNOTICE: Surface temperatures of adjacent walls andmantels become hot during operation. Walls andmantels above the firebox may become hot to thetouch. If installed properly, these temperatures meetthe requirement of the national product standard.Follow all minimum clearances shown in this manual.WARNING: This appliance requires a 1/2" NPT(National Pipe Thread) inlet connection to the pres-sure regulator.WARNING: A qualified service person must con-nect fireplace to gas supply. Follow all local codes.CAUTION: Never connect propane/LP fireplacedirectly to the propane/LP supply. This fireplacerequires an external regulator (not supplied). Installthe external regulator between the fireplace and pro-pane/LP supply.WARNING: Never connect natural gas fireplace toprivate (non-utility) gas wells. This gas is commonlyknown as wellhead gas.INSTALLATIONBuilt-In Fireplace Installation (Cont.)Installing Gas Piping to Fireplace LocationINSTALLING GAS PIPING TO FIREPLACELOCATIONInstallation Items NeededBefore installing fireplace, make sure you have the items listed below.• external regulator for propane/LP unit only (supplied by installer)• piping (check local codes)• sealant (resistant to propane/LP gas)• equipment shutoff valve *• test gauge connection *• sediment trap (optional)• tee joint• pipe wrench• approved flexible gas line with gas connector (if allowed by lo-cal codes) (not provided)* A CSA design-certified equipment shutoff valve with 1/8" NPTtap is an acceptable alternative to test gauge connection. Purchasethe optional CSA design-certified equipment shutoff valve fromyour dealer. See Accessories, page 30.For propane/LP units, the installer must supply an external regula-tor. The external regulator will reduce incoming gas pressure. Youmust reduce incoming gas pressure to between 11 and 14 inches ofwater. If you do not reduce incoming gas pressure, heater regulatordamage could occur. Install external regulator with the vent point-ing down as shown in Figure 21, page 13. Pointing the vent downprotects it from freezing rain or sleet.