desa international unvented (vent-free) propane gas log heater

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INSPECTINGBURNERSCheck pilot flame pattern and burner flame patterns often.PILOT FLAME PATTERNFigure 25 shows a correct pilot flame pattern. Figure 26 shows an incorrect pilot flamepattern. The incorrect pilot flame is not touching the thermocouple. This will cause thethermocouple to cool. When the thermocouple cools, the heater will shut down.ThermocouplePilot BurnerThermocouplePilot BurnerFigure 25 - Correct PilotFlame PatternFigure 26 - Incorrect PilotFlame PatternIf pilot flame pattern is incorrect, as shown in Figure 26• turn heater off (see To Turn Off Gas to Appliance, page 21 [thermostat-controlledmodels] or page 23 [manually-controlled models])• see Troubleshooting, pages 25 through 28FRONT BURNER FLAME PATTERNFigure 27 shows correct front burner flame pattern. Figure 28 shows incorrect frontburner flame pattern. The incorrect burner flame pattern shows yellow tipping at top ofblue flame.WARNING ICON G 001WARNINGIf yellow tipping occurs, your heater could produce increased levelsof carbon monoxide. If front burner flame pattern shows yellowtipping, follow instructions at bottom of this page. Yellow flame on rearburner is normal.NOTICEDo not mistake orange flames with yellow tipping. Dirt or other fineparticles are burned by heater, causing brief patches of orange flame.CORRECT FLAME PATTERN AT HIGH POSITIONFigure 27 - Correct Front Burner Flame PatternYellowTippingAt Topof BlueFlame24INCORRECT FLAME PATTERN AT HIGH POSITIONFigure 28 - Incorrect Front Burner Flame PatternIf front burner flame pattern is incorrect, as shown in Figure 28• turn heater off (see To Turn Off Gas to Appliance, page 21 [thermostat-controlledmodels] or page 23 [manually-controlled models])• see Troubleshooting, pages 25 through 28101309
CLEANINGANDMAINTENANCEWARNING ICON G 001WARNINGTurn off heater and let cool before cleaning.WARNING ICON G 001CAUTIONYou must keep control areas, burners, and circulating air passagewaysof heater clean. Inspect these areas of heater before eachuse. Have heater inspected yearly by a qualified service person.Heater may need more frequent cleaning due to excessive lint fromcarpeting, bedding material, etc.ODS/PILOT AND BURNERS• Use a vacuum cleaner or small, soft bristled brush to clean.LOGS• If you remove logs for cleaning, refer to Installing Logs, page 19, to properlyreplace logs.• Replace log(s) if broken or chipped (dime-sized or larger).TROUBLE-SHOOTINGNote: All troubleshootingitems are listed in order ofoperation.WARNING ICON G 001WARNINGTurn off and unplug heater and let cool before servicing. Only aqualified service person should service and repair heater.WARNING ICON G 001CAUTIONNever use a wire, needle, or similar object to clean ODS/pilot. Thiscan damage ODS/pilot unit.101309OBSERVEDPROBLEMWhen ignitor buttonis pressed, there is nospark at ODS/pilotPOSSIBLECAUSE1. Ignitor electrode notconnected to ignitor cable2. Ignitor cable pinched orwet3. Piezo ignitor nut is loose4. Broken ignitor cable5. Bad piezo ignitor6. Ignitor electrode positionedwrong7. Ignitor electrode brokenREMEDY1. Reconnect ignitor cable2. Free ignitor cable ifpinched by any metal ortubing. Keep ignitorcable dry3. Tighten nut holdingpiezo ignitor to basepanel of log set. Nut islocated behind basepanel.4. Replace ignitor cable5. Replace piezo ignitor6. Replace ignitor7. Replace ignitorContinued25
Page 7 and 8: AIR FORCOMBUSTIONANDVENTILATIONCont
Page 9 and 10: INSTALLINGContinuedINSTALLATION AND
Page 11 and 12: INSTALLINGContinuedMinimum Non Comb
Page 13 and 14: INSTALLINGContinuedINSTALLING DAMPE
Page 15 and 16: INSTALLINGContinuedMasonry ScrewMou
Page 17 and 18: INSTALLINGContinuedWARNING ICON G 0
Page 19 and 20: INSTALLINGContinuedINSTALLING LOGSW
Page 21 and 22: OPERATINGHEATERThermostat-Controlle
Page 23: OPERATINGHEATERManually-ControlledM
Page 27 and 28: TROUBLE-SHOOTINGContinuedOBSERVEDPR
Page 29 and 30: OPTIONALPOSITIONINGOF THERMOSTATSEN
Page 31 and 32: TECHNICALSERVICEYou may have furthe
Page 33 and 34: ACCESSORIESPurchase these heater ac
Page 35 and 36: PARTS LISTManually-ControlledModels
Page 37 and 38: PARTS LISTThermostat-Controlled Mod
Page 39 and 40: NOTES10130939

desa international unvented (vent-free) propane gas log heater

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