Desa Vanguard VI33NRA Owner's Operation And Installation Manual

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Desa Vanguard VI33NRA Owner's Operation And Installation Manual Manual pdf 19 page image

110150-01AFor more information, visit www.desatech.comFor more information, visit www.desatech.com1919CLEANING AND MAINTENANCECleaning Burner Injector Holder And Pilot Air Inlet HoleLogsBurner Primary Air HolesMain BurnerCLEANING ANDMAINTENANCEWARNING: Turn off heater and let cool beforecleaning.CAUTION: You must keep control areas, burner,and circulating air passageways of heater clean. In-spect these areas of heater before each use. Haveheater inspected yearly by a qualified service person.Heater may need more frequent cleaning due to exces-sive lint from carpeting, pet hair, bedding material, etc.LOGS• If you remove logs for cleaning, refer to Installing Logs, pages13 and 14, to properly replace logs.• Replace log(s) if broken or chipped (dime-sized or larger).BURNER PRIMARY AIR HOLESAir is drawn into the burner through the holes in the fitting at theburner entrance. These holes may become blocked with dust or lint.Periodically inspect these holes for any blockage and clean ifneeded. Blocked air holes will create soot.MAIN BURNERPeriodically inspect all burner flame holes with the heater running. Allslotted burner flame holes should be open with yellow flame present.All round burner flame holes should be open with a small blue flamepresent. Some burner flame holes may become blocked by debris orrust, with no flame present. If so, turn off heater and let cool. Removeblockage, blocked burner flame holes will create soot.CLEANING BURNER INJECTOR HOLDERAND PILOT AIR INLET HOLEThe primary air inlet holes allow the proper amount of air to mix withthe gas. This provides a clean burning flame. Keep these holes clearof dust, dirt, lint, and pet hair. Clean these air inlet holes prior to eachheating season. Blocked air holes will create soot. We recommendthat you clean the unit every three months during operation and haveheater inspected yearly by a qualified service person.We also recommend that you keep the burner tube and pilotassembly clean and free of dust and dirt. To clean these parts werecommend using compressed air no greater than 30 PSI. Your localcomputer store, hardware store, or home center may carry com-pressed air in a can. You can use a vacuum cleaner in the blowposition. If using compressed air in a can, please follow the direc-tions on the can. If you don't follow directions on the can, you coulddamage the pilot assembly.1. Shut off the unit, including the pilot. Allow the unit to cool forat least thirty minutes.2. Inspect burner, pilot, and primary air inlet holes on injectorholder for dust and dirt (see Figure 40).3. Blow air through the ports/slots and holes in the burner.4. Check the injector holder located at the end of the burner tubeagain. Remove any large particles of dust, dirt, lint, or pet hairwith a soft cloth or vacuum cleaner nozzle.5. Blow air into the primary air holes on the injector holder.6. In case any large clumps of dust have now been pushed intothe burner repeat steps 3 and 4.Clean the pilot assembly also. A yellow tip on the pilot flameindicates dust and dirt in the pilot assembly. There is a small pilotair inlet hole about two inches from where the pilot flame comes outof the pilot assembly (see Figure 41). With the unit off, lightly blowair through the air inlet hole. You may blow through a drinking strawif compressed air is not available.Figure 40 - Injector Holder On Outlet Burner TubeBurnerTubeInjector Holder (MayBe Brass or AluminumDepending on Model)Primary Air Inlet Holes(Shape of Holes MayVary by Model)Figure 41 - Pilot Inlet Air HoleBurnerTubePilot AssemblyPilot AirInlet HolePorts/Slots