Desa FVFM27PR Owner's Operation And Installation Manual

Also see for FLAME-MAX FVFM27NR: OWNER'S OPERATION AND INSTALLATION MANUAL OWNER'S OPERATION AND INSTALLATION MANUAL

Desa FVFM27PR Owner's Operation And Installation Manual Manual pdf 20 page image

www.desatech.com 108382-01G20Injector Holder(May Be Brassor AluminumDepending onModel)Primary Air InletHoles (Shape of HolesMay Vary by Model)INSPECTING bURNERSContinuedBURNER PRIMARY AIR HOLESAir is drawn into the burner through the holes inthe fitting at the burner entrance. These holes maybecome blocked with dust or lint. Periodicallyinspect these holes for any blockage and clean ifneeded. Blocked air holes will create soot.MAIN BURNERPeriodically inspect all burner flame holes with theheater running. All slotted burner flame holes shouldbe open with yellow flame present. All round burnerflame holes should be open with a small blue flamepresent. Some burner flame holes may becomeblocked by debris or rust, with no flame present. Ifso, turn off heater and let cool. Remove blockage,blocked burner flame holes will create soot.CLEANING ANDMAINTENANCEWARNING: Turn off heaterand let cool before cleaning.CAUTION: You must keepcontrol areas, burner, and circu-lating air passageways of heaterclean. Inspect these areas ofheater before each use. Haveheater inspected yearly by a quali-fied service person. Heater mayneed more frequent cleaning dueto excessive lint from carpeting,bedding material, pet hair, etc.WARNING: Failure to keepthe primary air opening(s) ofthe burner(s) clean may result insooting and property damage.CLEANING BURNER INjECTORHOLDER AND pILOT AIR INLET HOLEThe primary air inlet holes allow the properamount of air to mix with the gas. This providesa clean burning flame. Keep these holes clear ofdust, dirt, lint, and pet hair. Clean these air inletholes prior to each heating season. Blocked airholes will create soot. We recommend that youclean the unit every three months during operationand have heater inspected yearly by a qualifiedservice person.Figure 32 - Injector Holder On OutletBurner TubeBurnerTubeFigure 33 - Pilot Inlet Air HoleBurnerTubePilotAssemblyPilot AirInlet HolePorts/SlotsWe also recommend that you keep the burnertube and pilot assembly clean and free of dust anddirt. To clean these parts we recommend usingcompressed air no greater than 30 PSI. Your localcomputer store, hardware store, or home centermay carry compressed air in a can. You can use avacuum cleaner in the blow position. If using com-pressed air in a can, please follow the directions onthe can. If you don't follow directions on the can,you could damage the pilot assembly.1. Shut off the unit, including the pilot. Allowthe unit to cool for at least thirty minutes.2. Inspect burner, pilot, and primary air inletholes on injector holder for dust and dirt (seeFigure 32).3. Blow air through the ports/slots and holes inthe burner.4. Check the injector holder located at the endof the burner tube again. Remove any largeparticles of dust, dirt, lint, or pet hair with asoft cloth or vacuum cleaner nozzle.5. Blow air into the primary air holes on theinjector holder.6. In case any large clumps of dust have now beenpushed into the burner repeat steps 3 and 4.