Desa LSFG20NT, VSF30PT Safety Information, Local Codes, Product Identification, Unpacking

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SAFETY INFORMATION

Continued

5.This heater needs fresh, outside air ventilation to run properly. This heater has an Oxygen Depletion Sensing (ODS) safety shutoff system. The ODS shuts down the heater if not enough fresh air is available. See Air for Combustion and Ventilation, page 5.

6.Keep all air openings in front and bottom of heater clear and free of debris. This will insure enough air for proper combustion.

7.If heater shuts off, do not relight until you provide fresh, outside air. If heater keeps shutting off, have it serviced.

8.Do not run heater

•where flammable liquids or vapors are used or stored

•under dusty conditions

9.Do not use heater if any part has been under water. Immediately call a qualified service technician to inspect the room heater and to replace any part of the control system and any gas control which has been under water.

10.Turn off and unplug (if using electricity) heater and let cool before servicing. Only a qualified service person should service and repair heater.

11.Operating heater above elevations of 4,500 feet (1,371 m) could cause pilot outage.

12.To prevent performance problems, do not use propane/LP fuel tank of less than 100 lbs. (45 kg) capacity.

13.Before using furniture polish, wax, carpet cleaner or similar products, turn heater off. If heated, the vapors from these products may create a white powder residue within burner box or on adjacent walls or furniture.

14.Provide adequate clearances around air openings.

Local Codes

Install and use heater with care. Follow all local codes. In the absence of local codes, use the lat- est edition of The National Fuel Gas Code, ANSI Z223.1/NFPA 54*.

*Available from:

American National Standards Institute, Inc.

1430 Broadway

New York, NY 10018

National Fire Protection Association, Inc.

Batterymarch Park

Quincy, MA 02269

Product

Identification

Grill

Control Knob &

Ignitor Button

Guard

(inside door)

 

Front Panel

Figure 1 - Vent-Free Gas Heater

Unpacking

1.Remove heater, front panel and grill from carton. Set aside in a safe location.

2.Carefully remove refractory from heater and remove packing material. Check refractory for any damage. If the refractory is damaged do not use. See Replacement Parts, page 21.

Set aside in a safe location.

3.Check heater for any damage. If heater is dam- aged, promptly return to where you bought heater.

Product Features

Safety Device

This heater has a pilot with an Oxygen Deple- tion Sensing (ODS) safety shutoff system. The ODS/pilot is a required feature for vent-free room heaters. The ODS/pilot shuts off the heater if there is not enough fresh air.

Ignition System

This heater has either a piezo ignitor or electronic ignitor to light heater fuel supply.

Thermostatic Heat Control

Thermostat models have a thermostat sensing bulb and a control valve. This results in the great- est heater comfort. This can also result in lower gas bills.

www.desatech.com116307-01C

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Contents Models SF20NT, SF20PT ResidentialGarage Models Table of Contents Safety InformationSafety Information Safety Information Product FeaturesLocal Codes Product IdentificationProviding Adequate Ventilation Air For Combustion VentilationDetermining FRESH-AIR Flow for Heater Location Ventilation AIR AIR for Combustion VentilationVentilation Air From Inside Building Installation Installation ItemsCheck GAS Type Ventilation Air From OutdoorsInstalling Heater to Wall Locating HeaterConnecting to GAS Supply Marking Screw LocationsPlacing Heater On Mounting Screws Locate hardware packet behind left side door of heaterNatural Gas Propane/LPPressure Testing Heater Gas Connections Checking GAS ConnectionsTest Pressures Equal To or Less Than 1/2 Psig 3.5 kPa Open equipment shutoff valve see FigureInstalling Refractory and Front Panel For Your Safety Read Before LightingOperating Heater Lighting Instructions To Turn OFF GAS To ApplianceShutting Off Heater Shutting Off Burner Only pilot stays litManual Lighting Procedure Inspecting HeaterOperation Pilot Flame PatternCleaning Maintenance ODS/PILOT and BurnerBurner Pilot Air Inlet CabinetTroubleshooting Observed Problem Possible Cause RemedyTroubleshooting Noise when burner is lit Dirty or partially clogged Clean burner see CleaningWhen heated, vapors from Turn heater off when using Turn off air supplyTechnical Service Service Publications Service HintsWhen Gas Pressure Is Too Low Gas leak. See WarningSpecifications LSF20NT, LSFG20NT, VSF20NT LSF20PT, LSFG20PT, VSF20PTVSFG20NT VSGF20PT SF30NT SF30PTReplacement Parts AccessoriesParts Central Illustrated Parts Breakdown Parts List Warranty Information Keep this WarrantyModelos Consumidor Conserve este manual para referencias futurasModelos Para Cochera Tabla de contenido Información de seguridadInformación de seguridad Códigos locales Identificación del ProductoDesempaque Características del ProductoAire para combustión Ventilación Cómo Procurar LA Ventilación AdecuadaConstrucción inusualmente sellada Espacio confinado y no confinadoAire Para Ventilación Aire Para Combustión VentilaciónAire del interior de la construcción para Ventilación Verifique EL Tipo DE GAS InstalaciónArtículos DE Instalación Ubicación DEL Calentador Donde cortinas, muebles, ropaDe las partes anterior, superior Fuertes corrientes de aireInstalación DEL Calentador EN LA Pared Doble en anclaje de pared como se muestra en la figuraColocación del calentador en los Tornillos de montaje Coloque el calentador en los tornillos de montajeConexión AL Suministro DE GAS Ventila apuntando hacia abajoGas natural Revisión DE LAS Conexiones DE GASRepare todas las fugas inmediatamente Abra la válvula de cierre del equipo consulte la figura Instale el panel anterior y el refractarioInstalación del panel anterior y el refractario Instale un difusor frontal como se muestra en la figuraFuncionamiento del Calentador Instrucciones DE EncendidoInspección del Calentador Cómo Cerrar EL Suministro DE GAS AL AparatoFuncionamiento DEL Encendido ManualLimpieza y Mantenimiento Inspección delPatrón DE LA Llama DEL Calentador Especificaciones GabineteSF30NT LSF30NT, VSF30NTSolución de problemas Causa Posible RemedioSolución DE Problemas El problema desaparecerá Llama amarilla durante la No hay suficiente aireCombustión En el quemadorServicio técnico Publicaciones de servicioConsejos para servicio Al inicio de la páginaAccesorios Piezas de repuestoCentral de piezas Válvula DE Cierre DEL Equipo GA5010Clasificación ilustrada de piezas Lista DE Piezas Información de garantía Guarde Esta Garantía

VSF30PT, LSFG20NT specifications

The Desa VSF30PT and LSFG20NT represent two significant innovations in the HVAC (Heating, Ventilation, and Air Conditioning) industry, catering to diverse consumer needs and preferences.

The Desa VSF30PT is a powerful and efficient forced-air heater designed for residential and light commercial applications. One of its primary features is its high-efficiency output, providing a substantial heating capacity while consuming minimal energy. The unit is equipped with a robust heat exchanger that enhances its performance, ensuring optimal heat distribution throughout the space. A notable characteristic of the VSF30PT is its user-friendly digital thermostat, allowing for precise temperature control, which can significantly improve comfort levels and reduce energy consumption.

Additionally, the Desa VSF30PT incorporates advanced safety features, such as automatic shut-off protection in case of overheating or airflow obstruction. Its compact design makes it easy to install in tight spaces, providing flexibility in placement without compromising on effectiveness. The unit operates quietly, minimizing noise disturbances, which is especially important in residential settings.

On the other hand, the LSFG20NT is an innovative gas furnace that combines performance with energy efficiency. This model is equipped with a variable-speed blower motor that allows for consistent airflow and improved humidity control, making it an excellent choice for homeowners who prioritize comfort. Its multi-stage heating design ensures that the furnace operates at different levels according to the heating demand, optimizing energy usage and enhancing overall efficiency.

The LSFG20NT also features a modulating gas valve, which adjusts the burner output to provide just the right amount of heat for any given situation. This not only improves comfort but also contributes to significant energy savings over time. Furthermore, the LSFG20NT is designed with advanced filtration systems that improve indoor air quality by trapping dust, allergens, and other particles.

Both units showcase the latest technology in HVAC systems, emphasizing energy efficiency, safety, and user convenience. With their unique features and characteristics, the Desa VSF30PT and LSFG20NT stand out in the market, making them ideal choices for those seeking reliable and efficient heating solutions. Whether for residential or light commercial applications, these models promise performance that meets the demands of modern-day heating needs.
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