Desa VN20BT Safety Information And Installation Manual

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Desa VN20BT Safety Information And Installation Manual Manual pdf 16 page image

www.desatech.com 107886-01J16Figure 23 - Correct Burner Flame PatternYellow TippingFigure 24 - Incorrect Burner FlamePattern1/2 GlassHeightBlueFlame1/2 GlassHeightCLEANING 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 aqualified service person. Heatermay need more frequent clean-ing due to excessive lint fromcarpeting, bedding material, pethair, etc.WARNING: Failure to keepthe primary air opening(s) ofthe burner(s) clean may result insooting and property damage.Figure 25 - Pilot Inlet Air (Propane/LPPilot Shown)Pilot AssemblyPilot Air InletODS/PILOT AND BURNERUse a vacuum cleaner, pressurized air or small,soft bristled brush to clean.BURNER PILOT AIR INLETThe primary air inlet holes allow the properamount of air to mix with the gas. This provides aclean burning flame. Keep these holes clear of dust,dirt and lint. Clean these air inlet holes prior to eachheating season. Blocked air holes will create soot.We recommend that you clean the unit every threemonths during operation and have heater inspectedyearly by a qualified service person.We 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 donʼt 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 for dust and dirt.3. Blow air through the ports/slots and holes inthe burner.4. Never insert objects into the pilot tube.Clean the pilot assembly also. A yellow tip on the pi-lot flame indicates dust and dirt in the pilot assembly.There is a small pilot air inlet about two inches fromwhere the pilot flame comes out of the pilot assembly(see Figure 25). With the unit off, lightly blow airthrough the air inlet. You may blow through a drink-ing straw if compressed air is not available.INSPECTING HEATERContinuedCABINETAir PassagewaysUse a vacuum cleaner or pressurized air to clean.ExteriorUse a soft cloth dampened with a mild soap andwater mixture. Wipe the cabinet to remove dust.Figure 23 shows a correct burner flame pattern. Fig-ure 24 shows an incorrect burner flame pattern. Theincorrect burner flame pattern shows yellow tippingof the flame. It also shows the flame higher than 1/2the glass panel height.If burner flame pattern is incorrect, as shown inFigure 24• turn heater off (see To Turn Off Gas To Appli-ance, page 15• see Troubleshooting, page 18