www.desatech.com113109-01G 9Figure 5 - Installing Hood to FireboxNote: Your fireplace is designed to be used inzero clearance installations. Wall or framing ma-terial can be placed directly against any exteriorsurface on the rear, sides or top of your fireplace,except where standoff spacers are integrally at-tached. If standoff spacers are attached to yourfireplace, these spacers can be placed directlyagainst wall or framing materials.Use the dimensions shown for rough openingsto create the easiest installation. See Built-InFireplace Installation, page 12.IMPORTANT: Vent-free heaters add moistureto the air. Although this is beneficial, installingfireplace in rooms without enough ventilationair may cause mildew to form from too muchmoisture. See Air for Combustion and Ventila-tion, page 6.IMPORTANT: Make sure the fireplace is level.If fireplace is not level, log set will not workproperly.CHECK GAS TYPEUse the correct gas type (natural or propane/LP) for your fireplace. If your gas supply is notcorrect, do not install fireplace. Call dealerwhere you bought fireplace for proper typefireplace.WARNING: This appliance isequipped for either natural gasor propane/LP gas but not both.Gas type is indicated on the rat-ing plate. Field conversion is notpermitted.ELECTRICAL HOOKUP(Models GA3700 Series and GA3700TSeries Blower Accessories and GA3555Internal Duplex Kit)This fireplace accepts a blower assembly withan electrical cord. The electrical cord is five feetin length. You must locate fireplace within reachof a 120 volt grounded electrical outlet. If not,you must install an electrical outlet within reachof fireplace power cord. The GA3555 outletaccessory is used for built-in applications withblower accessory installed.INSTALLING HOODInstall hood to top of firebox as shown inFigure 5. Use 3 Phillips screws provided.INSTALLATIONContinuedFigure 6 - Assembling Perimeter TrimSide Trim TopTrimSlotMiteredEdgeSlotShimSet ScrewsAdjustingPlateASSEMBLING AND ATTACHINGOpTIONAL pERIMETER TRIM(Included with Mantel Accessory)IMPORTANT: If you are recessing the fire-box in a wall, do not attach perimeter trim atthis time. See Built-In Fireplace Installation,page 12.Note: The instructions below show assemblingand attaching perimeter trim to fireplace.1. Remove packaging from three pieces ofperimeter trim.2. Locate four perimeter screws, two adjust-ing plates with set screws and two shimsin the hardware packet.3. Align shim under adjusting plate as shownin Figure 6.4. Slide one end of adjusting plate/shim inslot on mitered edge of top perimeter trim(see Figure 6).5. Slide other end of adjusting plate/shim inslot on mitered edge of side perimeter trim(see Figure 6).6. While firmly holding edges of perimeter trimtogether, tighten both set screws on theadjusting plate with slotted screwdriver.