Desa SF20NT installation manual Safety Information

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SAFETY INFORMATION

WARNING:Thisproductcon- tainsand/orgenerateschemicals known to the State of California to cause cancer or birth defects or other reproductive harm.

IMPORTANT: Read this owner’s manual carefully and completely before trying to assemble, operate or service this heater. Improper use of this heater can cause serious injury or death from burns, fire, explosion, electrical shock and carbon monoxide poisoning.

DANGER: Carbon monoxide poisoning may lead to death!

Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning resemble the flu, with head- aches, dizziness or nausea. If you have these signs, the heater may not be working properly. Get fresh air at once! Have heater serviced. Some people are more affected by carbon monoxide than others. These include pregnant women, people with heart or lung disease or anemia, those under the influ- ence of alcohol and those at high altitudes.

Natural and Propane/LP Gas: Natural and Propane/ LP gases are odorless. An odor-making agent is added to these gases. The odor helps you detect a gas leak. However, the odor added to the gas can fade. Gas may be present even though no odor exists.

Make certain you read and understand all warn- ings. Keep this manual for reference. It is your guide to safe and proper operation of this heater.

WARNING: Any change to this heater or its controls can be dangerous.

WARNING: Do not use a blower insert, heat exchanger insert or other accessory not ap- proved for use with this heater.

Due to high temperatures, the appliance should be located out of traffic and away from furniture and draperies.

Do not place clothing or other flammable material on or near the appliance. Never place any objects on the heater.

Surface of heater becomes very hot when running heater. Keep children and adults away from hot surface to avoid burns or clothing ignition. Heater will remain hot for a time after shut- down. Allow surface to cool before touching.

Carefully supervise young chil- dren when they are in the same room with heater.

Make sure grill guard is in place before running heater.

Keep the appliance area clear and free from combustible ma- terials, gasoline and other flam- mable vapors and liquids.

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

2.Do not place propane/LP supply tank(s) in- side any structure. Locate propane/LP supply tank(s) outdoors.

3.This heater shall not be installed in a bedroom or bathroom.

4.If you smell gas

•Shut off gas supply

•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 neighborʼs phone. Follow the gas supplierʼs instructions

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

116307-01A

www.desatech.com

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Contents Residential Models Garage Models What to do if YOU Smell GASTable of Contents Safety Information Product Features Local CodesUnpacking AIR for Combustion Ventilation Providing Adequate VentilationDetermining FRESH-AIR Flow for Heater Location Ventilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors InstallationInstallation Items Check GAS TypeAttaching to wall stud Attaching to wall anchor Installing Heater to WallLocating Heater Coldest part of roomAttaching To Wall Anchor Method Marking Screw LocationsMark two screw locations on wall as shown in Figure Locate hardware packet behind left side door of heaterExternal Regulator With Vent Pointing Down Connecting to GAS SupplyChecking GAS Connections Test Pressures In Excess Of 1/2 Psig 3.5 kPaTest Pressures Equal To or Less Than 1/2 Psig 3.5 kPa Make sure control knob of heater is in the OFF position For Your Safety Read Before LightingInstalling Refractory and Front Panel Operating HeaterWhat to do if YOU Smell GAS Lighting InstructionsInspecting Heater Cabinet Cleaning MaintenanceODS/PILOT and Burner Burner Pilot AIR InletTroubleshooting Observed Problem Possible Cause RemedyContact local propane/LP gas company Delayed ignition of burners Manifold pressure is too low Goes out when control knob is Control knob not pressedProblem could be caused by AssemblyTurn off air supply Noise when burner is litDirty or partially clogged Clean burner see Cleaning When heated, vapors from Turn heater off when usingGas leak. See Warning Technical ServiceService Publications Service Hints When Gas Pressure Is Too LowSpecifications SF30NT SF30PTLSF30NT, VSF30NT LSF30PT, VSF30PT Accessories Replacement PartsParts Central Illustrated Parts Breakdown LSF20PT Parts ListKeep this Warranty Warranty InformationModelos Modelos Para Cochera QUÉ Hacer SI Percibe Olor a GASTabla DE Contenido Información DE Seguridad Características DEL Producto Códigos LocalesIdentificación DEL Producto DesempaqueEspacio confinado y no confinado Aire Para Combustión VentilaciónCómo Procurar LA Ventilación Adecuada Construcción inusualmente selladaAire del interior de la construcción para ventilación Aire Para VentilaciónAire del exterior para ventilación InstalaciónVerifique EL Tipo DE GAS Artículos DE InstalaciónUbicación DEL Calentador En áreas con mucho viento oColoque el calentador en los tornillos de montaje Instalación DEL Calentador EN LA ParedDoble en anclaje de pared como se muestra en la figura Colocación del calentador en los tornillos de montajeVentila apuntando hacia abajo Conexión AL Suministro DE GASRepare todas las fugas inmediatamente Revisión DE LAS Conexiones DE GASGas natural Propano o gas LPAbra la válvula de cierre del equipo consulte la figura Instale el panel anterior y el refractarioInstalación del panel anterior y el refractario No intente encender ningún aparato Instrucciones DE EncendidoInspección DEL Calentador Funcionamiento DELComo se muestra en la figura Inspección DELLimpieza Y Mantenimiento Entrada DE Aire AL Piloto DEL QuemadorCausa Posible Remedio Solución DE ProblemasPresione totalmente la perilla de control Problema Observado Causa Posible RemedioBaja presión del gas El termopar está dañadoSilbante cuando el quemador El problema desapareceráCierre el suministro de aire Se enciende o se apagaServicio Técnico Consejos Para ServicioCuando la presión del gas de entrada sea muy baja Especificaciones SF30NTLSF30NT, VSF30NT Accesorios Piezas DE RepuestoCentral DE Piezas Clasificación Ilustrada DE Piezas Lista DE Piezas Guarde Esta Garantía Información DE Garantía

SF20NT specifications

Desa SF20NT is a versatile and innovative gas-fired space heater designed for efficient heating solutions in various environments, whether in residential, commercial, or industrial settings. This model is known for its high performance, energy efficiency, and advanced technology, making it a popular choice among users seeking reliability and effectiveness in their heating needs.

One of the primary features of the Desa SF20NT is its impressive heating capacity. With a heating output of around 20,000 BTUs, it can effectively warm spaces up to 1,000 square feet, making it suitable for larger areas. This capability is enhanced by the heater's superior metal construction, ensuring durability and long-lasting performance.

In terms of technology, the Desa SF20NT incorporates a direct vent system that utilizes outside air for combustion. This feature not only increases efficiency but also enhances safety, as it minimizes the risk of hazardous fumes entering the living space. The direct vent system allows for installation flexibility; the unit can be vented horizontally through a wall or vertically through a roof, catering to different building designs.

Another standout characteristic of the Desa SF20NT is its thermostat control, which allows users to maintain a consistent temperature easily. This feature contributes to energy savings by enabling the heater to operate only when necessary, thus reducing unnecessary heating costs. Additionally, the unit includes a programmable timer, allowing users to set specific heating schedules, further optimizing energy use.

Safety is also a critical aspect of the Desa SF20NT design. It comes with built-in safety features such as a flame sensor and a safety shut-off system, ensuring that the heater operates under safe conditions at all times. The unit is designed to meet stringent safety standards, giving users peace of mind.

In summary, the Desa SF20NT is a powerful, efficient, and safe space heater that is equipped with modern features and technologies. With its high heating capacity, direct vent system, thermostat control, and safety mechanisms, it stands out as an excellent choice for anyone looking for reliable heating solutions. Whether for home or business use, the Desa SF20NT is built to provide comfort and efficiency year-round.
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