Desa FLAME-MAX VML27NR Owner's Operation And Installation Manual

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Desa FLAME-MAX VML27NR Owner's Operation And Installation Manual Manual pdf 18 page image

111115-01A18For more information, visit www.desatech.comFor more information, visit www.desatech.comCLEANING 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, bedding material, pet hair, etc.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 37).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 38). With the unit off, lightly blowair through the air inlet hole. You may blow through a drinking strawif compressed air is not available.Figure 37 - Injector Holder On Outlet Burner TubeBurnerTubeInjector HolderPrimary Air Inlet Holes(Shape of Holes MayVary by Model)CLEANING AND MAINTENANCECleaning Burner Injector Holder And Pilot Air Inlet HoleLogsFigure 38 - Pilot Inlet Air HoleBurner TubePilot AssemblyPilot AirInlet HolePorts/SlotsLOGS• 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).WIRING DIAGRAMThermopileJumper Wire