Design Dynamics PFS VF-18N-MHD Owner's Operation And Installation Manual

Also see for PFS VF-18N-MHD: Owner's manual

Contents

Design Dynamics PFS VF-18N-MHD Owner's Operation And Installation Manual Manual pdf 20 page image

www.fmiproducts.com 116986-01H20Figure 26 - Injector Holder on FrontBurner TubeBurner TubePrimary AirInlet OpeningInjectorHolderInjectorFigure 25 - Removing Front Log to CleanFront BurnerMain LogAssemblyFront LogAssemblyScrewsBaseAssemblyCleaningAccessCleaNING 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.BURNER INjECTOR HOLDER AIRINLET HOLEThe primary air inlet holes allow the properamount of air to mix with the gas. This pro-vides a clean burning flame. Keep these holesclear of dust, dirt, lint and pet hair. Clean theseair inlet holes prior to each heating season.Blocked air holes will create soot. We recom-mend that you clean the unit every 3 monthsduring operation and have heater inspectedyearly by a qualified service person.We also recommend that you keep the burnertube clean and free of dust and dirt. We rec-ommend using compressed air no greaterthan 30 PSI. Your local computer store,hardware store or home center may carrycompressed air in a can. If using compressedair in a can, please follow the directions on thecan. If you don't follow directions on the can,you could damage the pilot assembly.Before cleaning, shut off unit, including pilot.Allow unit to cool for at least 30 minutes. Youwill need to remove the front log to accessfront burner.1. Remove two screws from back of unitthat attach main log assembly to baseassembly (see Figure 25).2 . Remove screws from left and right side offront log assembly to remove from baseassembly (see Figure 25).3. Inspect burner and primary air inlet holeson injector holder of each burner for dustand dirt (see Figures 25 and 26).4. Blow air through the ports/slots and holesin the burner.5. Check the injector holder located at theend of the burner tube again. Removeany large particles of dust, dirt, lint or pethair with a soft cloth or vacuum cleanernozzle.6. Blow air into the primary air holes on theinjector holder.7. In case any large clumps of dust have nowbeen pushed into the burner repeat steps5 and 6.