Desa Tech CGN20TA installation manual Blue Flame VENT-FREE Natural GAS Heater

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BLUE FLAME VENT-FREE NATURAL GAS HEATER

OWNER’S OPERATION AND INSTALLATION MANUAL

CGN20TA

®

Heater Size: 20,000 Btu/Hr Thermostat

WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury, or loss of life.

Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS

Do not try to light any appliance.

Do not touch any electrical switch; do not use any phone in your building.

Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

If you cannot reach your gas supplier, call the fire department.

Installation and service must be performed by a qualified installer, service agency, or the gas supplier.

WARNING: This is an unvented gas-fired heater. It uses air (oxygen) from the room in which it is installed. Provisions for adequate combustion must be pro- vided. Refer to page 4 of this manual

This appliance may be installed in an aftermarket* manufactured (mobile) home, where not prohibited by state or local codes.

* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer.

This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not convertible for use with other gases.

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Contents What to do if YOU Smell GAS Blue Flame VENT-FREE Natural GAS HeaterCGN20TA Safety InformationProduct Identification Product FeaturesLocal Codes UnpackingProviding Adequate Ventilation Fresh AIR for Combustion and VentilationUnusually Tight Construction Confined and Unconfined SpaceDetermining if You Have a Confined or Unconfined Space Determining FRESH-AIR Flow for Heater LocationVentilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors Installation Items InstallationCheck GAS Type Locating HeaterThermostat Sensing Bulb Installing Heater to WallAttaching Mounting Bracket To Wall Installing Bottom Mounting ScrewsPlacing Heater On Mounting Bracket Typical Inlet Pipe Diameters Connecting to GAS SupplyPressure Testing Heater GAS Connections Pressure Testing GAS Supply Piping SystemChecking GAS Connections Test Pressures In Excess Of 1/2Operating Heater For Your Safety Read Before LightingLighting Instructions To Turn OFF GAS To ApplianceInspecting Burner Manual Lighting ProcedureThermostat Control Operation Pilot Flame PatternObserved Problem Possible Cause Remedy TroubleshootingMaintenance, Gas leak. See Warning statement at Service Publications Replacement Parts Cleaning and Maintenance SpecificationsTechnical Service Service HintsFBD Parts CentralsFAN Kits GA3100A and GA3200TA AccessoriesManual Shutoff CGN20TA Illustrated Parts BreakdownKEY Part Number Description QTY Parts ListCGN20TA 104190 Warranty Information