Desa Tech CGN20TA installation manual 104190

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OWNER’S MANUAL

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104190

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Contents What to do if YOU Smell GAS Blue Flame VENT-FREE Natural GAS HeaterCGN20TA Safety InformationUnpacking Product FeaturesProduct Identification Local CodesConfined and Unconfined Space Fresh AIR for Combustion and VentilationProviding Adequate Ventilation Unusually Tight ConstructionDetermining if You Have a Confined or Unconfined Space Determining FRESH-AIR Flow for Heater LocationVentilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Locating Heater InstallationInstallation Items Check GAS TypeThermostat Sensing Bulb Installing Heater to WallPlacing Heater On Mounting Bracket Installing Bottom Mounting ScrewsAttaching Mounting Bracket To Wall Typical Inlet Pipe Diameters Connecting to GAS SupplyTest Pressures In Excess Of 1/2 Pressure Testing GAS Supply Piping SystemPressure Testing Heater GAS Connections Checking GAS ConnectionsTo Turn OFF GAS To Appliance For Your Safety Read Before LightingOperating Heater Lighting InstructionsPilot Flame Pattern Manual Lighting ProcedureInspecting Burner Thermostat Control OperationObserved Problem Possible Cause Remedy TroubleshootingMaintenance, Gas leak. See Warning statement at Service Hints Cleaning and Maintenance SpecificationsService Publications Replacement Parts Technical ServiceFBD Parts CentralsManual Shutoff AccessoriesFAN Kits GA3100A and GA3200TA CGN20TA Illustrated Parts BreakdownKEY Part Number Description QTY Parts ListCGN20TA 104190 Warranty Information