Desa CFS18NRA Owner's Operation And Installation Manual

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Desa CFS18NRA Owner's Operation And Installation Manual Manual pdf 17 page image

17104416OWNER’S MANUALWARNING: If yellow tippingoccurs, your heater could pro-duce increased levels of carbonmonoxide. If front burner flamepattern shows yellow tipping, fol-low instructions at bottom of thispage. Yellow flame on rear burneris normal.ThermocouplePilot BurnerFigure 24 - Correct Pilot Flame PatternFigure 25 - Incorrect Pilot Flame PatternFigure 27 - Incorrect Front Burner FlamePatternFigure 26 - Correct Front Burner FlamePatternYellow Tipping At Topof Blue FlameINSPECTINGBURNERSCheck pilot flame pattern and burner flamepatterns often.PILOT FLAME PATTERNFigure 24 shows a correct pilot flame pat-tern. Figure 25 shows an incorrect pilotflame pattern. The incorrect pilot flame isnot touching the thermocouple. This willcause the thermocouple to cool. When thethermocouple cools, the heater will shutdown.If pilot flame pattern is incorrect, as shownin Figure 25• turn heater off (see To Turn Off Gas toAppliance, page 15)• see Troubleshooting, pages 19 through 21FRONT BURNER FLAMEPATTERNFigure 26 shows correct front burner flamepattern. Figure 27 shows incorrect frontburner flame pattern. The incorrect burnerflame pattern shows yellow tipping at top ofblue flame.NOTICE: Do not mistake orangeflames with yellow tipping. Dirtor other fine particles are burnedby heater, causing brief patchesof orange flame.If front burner flame pattern is incorrect, asshown in Figure 27• turn heater off (see To Turn Off Gas toAppliance, page 15)• see Troubleshooting, pages 19 through 21ThermocouplePilot Burner