Desa A, B, C Owner's Operation And Installation Manual

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Desa A, B, C Owner's Operation And Installation Manual Manual pdf 22 page image

104415For more information, visit www.desatech.comFor more information, visit www.desatech.com22FRONT BURNER FLAME PATTERNFigure 36 shows correct front burner flame pattern. Figure 37 showsincorrect front burner flame pattern. The incorrect burner flamepattern shows yellow tipping at top of blue flame.WARNING: If yellow tipping occurs, your heatercould produce increased levels of carbon monoxide.If front burner flame pattern shows yellow tipping,follow instructions at bottom of this page. Yellowflame on rear burner is normal.NOTICE: Do not mistake orange flames with yellowtipping. Dirt or other fine particles are burned byheater, causing brief patches of orange flame.If front burner flame pattern is incorrect, as shown in Figure 37• turn heater off (see To Turn Off Gas to Appliance, page 17 [Ther-mostat-Controlled Models], page 18 [Manually-ControlledModels], or page 20 [Remote-Ready Models])• see Troubleshooting, pages 24 through 26INSPECTING BURNERSCheck pilot flame pattern and burner flame patterns often.PILOT FLAME PATTERNFigure 34 shows a correct pilot flame pattern. Figure 35 shows anincorrect pilot flame pattern. The incorrect pilot flame is nottouching the thermocouple. This will cause the thermocouple tocool. When the thermocouple cools, the heater will shut down.If pilot flame pattern is incorrect, as shown in Figure 35• turn heater off (see To Turn Off Gas to Appliance, page 17 [Ther-mostat-Controlled Models], page 18 [Manually-ControlledModels], or page 20 [Remote-Ready Models])• see Troubleshooting, pages 24 through 26Figure 34 - Correct Pilot Flame Pattern (Your pilot may vary frompilots shown)Figure 36 - Correct Front Burner Flame PatternFigure 37 - Incorrect Front Burner Flame PatternYellow Tipping At Topof Blue FlameINSPECTING BURNERSPilot Flame PatternFront Burner Flame PatternPilot BurnerThermocouplePilot BurnerThermocoupleFigure 35 - Incorrect Pilot Flame Pattern (Your pilot may varyfrom pilots shown)ThermocouplePilot BurnerPilot BurnerThermocouple