Desa Tech B, 18, 28 installation manual OWNER’S Operation and Installation Manual

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BLUE FLAME VENT-FREE NATURAL GAS HEATER

OWNER’S OPERATION AND INSTALLATION MANUAL

®

Heater Sizes: 18,000 Btu/Hr Thermostat, and

28,000 Btu/Hr Thermostat “B” Model Heaters

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.

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.

Save this manual for future reference.

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Contents What to do if YOU Smell GAS OWNER’S Operation and Installation ManualSafety Information Contents001 Local Codes Product IdentificationUnpacking ProductCombustion Fresh AIR ForVentilation Providing Adequate VentilationDetermining FRESH-AIR Flow for Heater Location Fresh AIR for Combustion and VentilationDetermining if You Have a Confined or Unconfined Space Ventilation Air From Inside Building Ventilation AIRVentilation Air from Outdoors Ventilation Air From OutdoorsInstallation Items Installing To WallCheck GAS Type Locating HeaterLocating Thermostat Sensing Bulb Thermostat Sensing BulbAttaching Thermostat Sensing Bulb Mounting Bracket Installing Heater to WallRemoving Front Panel Of Heater Methods For Attaching Mounting Bracket To WallAttaching Mounting Bracket To Wall Marking Screw LocationsPlacing Heater On Mounting Bracket Installing Bottom Mounting ScrewsConnecting to GAS Supply Checking GAS Pressure Testing GAS Supply Piping SystemConnections Servicing. Correct all leaks at onceChecking Pressure Testing Heater GAS ConnectionsOperating Heater For Your Safety Read Before LightingPilot Shutting Off Burner Only pilot stays lit Shutting Off HeaterPilot Flame Pattern Inspecting BurnerCorrect Burner Flame Pattern Burner Flame PatternODS/PILOT and Burner Trouble ShootingCabinet Air PassagewaysTrouble Cleaning and MainteTROUBLE- Shooting Top Ing statement atService Hints Service Publications Technical Service18,000 Btu/Hr 28,000 Btu/Hr Models Parts Under Warranty Replacement PartsParts Not Under Warranty CentralsODS/Pilot Assembly CGN18TB CGN28TB Description Parts ListFAN Kits GA2100A, GA3100 GA3100A, and GA3200TA AccessoriesValve GA5010 101808 Keep this Warranty Warranty Information