Desa VSF30PT Cleaning Maintenance, ODS/PILOT and Burner, Burner Pilot Air Inlet, Cabinet

Page 15

Inspecting Heater

Continued

Figure 20 shows a correct burner flame pattern. Figure 21 shows an incorrect burner flame pattern. The incorrect burner flame pattern shows yellow tipping of the flame.

If burner flame pattern is incorrect, as shown in Figure 21

•turn heater off (see To Turn Off Gas to Appli- ance, page 14)

•see Troubleshooting, page 16

Blue

Flame

Figure 20 - Correct Burner Flame Pattern

Yellow

Tipping

Figure 21 - Incorrect Burner Flame Pattern

Cleaning and

Maintenance

WARNING: Turn off heater and let cool before cleaning.

CAUTION: You must keep control areas, burner and circu- lating air passageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a qualified service person. Heater may need more frequent clean- ing due to excessive lint from carpeting, bedding material, pet hair, etc.

WARNING: Failure to keep the primary air opening(s) of the burner(s) clean may result in sooting and property damage.

ODS/PILOT AND BURNER

Use pressurized air and a small, soft bristled brush to clean.

Burner Pilot Air Inlet

The primary air inlet holes allow the proper amount of air to mix with the gas. This provides a clean burning flame. Keep these holes clear of dust, dirt and lint. Clean these air inlet holes prior to each heating season. Blocked air holes will create soot. We recommend that you clean the unit every three months during operation and have heater inspected yearly by a qualified service person.

We also recommend that you keep the burner tube and pilot assembly clean and free of dust and dirt. To clean these parts we recommend using compressed air no greater than 30 PSI. Your local computer store, hardware store or home center may carry compressed air in a can. If using compressed air in a can, please follow the directions on the can. If you don’t follow directions on the can, you could damage the pilot assembly.

1.Shut off the unit, including the pilot. Allow the unit to cool for at least thirty minutes.

2.Inspect burner, pilot for dust and dirt.

3.Blow air across the ports/slots and holes in the burner.

4.Never insert objects into the pilot tube. Clean the pilot assembly also. A yellow tip on the pilot flame indicates dust and dirt in the pilot as- sembly. There is a small pilot air inlet about two inches from where the pilot flame comes out of the pilot assembly (see Figure 22). With the heater off, lightly blow air through the air inlet. You may blow through a drinking straw if compressed air is not available.

Pilot Assembly

Pilot Air Inlet

Figure 22 - Pilot Air Inlet

CABINET

Air Passageways

Use a vacuum cleaner or pressurized air to clean.

Exterior

Use a soft cloth dampened with a mild soap and water mixture. Wipe the cabinet to remove dust.

116307-01C

www.desatech.com

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Contents Residential Models SF20NT, SF20PTGarage Models Safety Information Table of ContentsSafety Information Product Identification Safety InformationProduct Features Local CodesAir For Combustion Ventilation Providing Adequate VentilationDetermining FRESH-AIR Flow for Heater Location AIR for Combustion Ventilation Ventilation AIRVentilation Air From Inside Building Ventilation Air From Outdoors InstallationInstallation Items Check GAS TypeLocating Heater Installing Heater to WallLocate hardware packet behind left side door of heater Connecting to GAS SupplyMarking Screw Locations Placing Heater On Mounting ScrewsPropane/LP Natural GasOpen equipment shutoff valve see Figure Pressure Testing Heater Gas ConnectionsChecking GAS Connections Test Pressures Equal To or Less Than 1/2 Psig 3.5 kPaFor Your Safety Read Before Lighting Installing Refractory and Front PanelOperating Heater Shutting Off Burner Only pilot stays lit Lighting InstructionsTo Turn OFF GAS To Appliance Shutting Off HeaterPilot Flame Pattern Manual Lighting ProcedureInspecting Heater OperationCabinet Cleaning MaintenanceODS/PILOT and Burner Burner Pilot Air InletObserved Problem Possible Cause Remedy TroubleshootingTroubleshooting Turn 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 LowSF30NT SF30PT SpecificationsLSF20NT, LSFG20NT, VSF20NT LSF20PT, LSFG20PT, VSF20PT VSFG20NT VSGF20PTAccessories Replacement PartsParts Central Illustrated Parts Breakdown Parts List Keep this Warranty Warranty InformationConsumidor Conserve este manual para referencias futuras ModelosModelos Para Cochera Información de seguridad Tabla de contenidoInformación 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 Para Combustión Ventilación Aire Para VentilaciónAire del interior de la construcción para Ventilación Instalación Verifique EL Tipo DE GASArtículos DE Instalación Fuertes corrientes de aire Ubicación DEL CalentadorDonde cortinas, muebles, ropa De las partes anterior, superiorColoque 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 GASRevisión DE LAS Conexiones DE GAS Gas naturalRepare todas las fugas inmediatamente Instale un difusor frontal como se muestra en la figura Abra la válvula de cierre del equipo consulte la figuraInstale el panel anterior y el refractario Instalación del panel anterior y el refractarioInstrucciones DE Encendido Funcionamiento del CalentadorEncendido Manual Inspección del CalentadorCómo Cerrar EL Suministro DE GAS AL Aparato Funcionamiento DELInspección del Limpieza y MantenimientoPatrón DE LA Llama DEL Calentador LSF30NT, VSF30NT EspecificacionesGabinete SF30NTCausa Posible Remedio Solución de problemasSolución DE Problemas En el quemador El problema desapareceráLlama amarilla durante la No hay suficiente aire CombustiónAl inicio de la página Servicio técnicoPublicaciones de servicio Consejos para servicioVálvula DE Cierre DEL Equipo GA5010 AccesoriosPiezas de repuesto Central de piezasClasificación ilustrada de piezas Lista DE Piezas Guarde Esta Garantía Información de 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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