Desa VSF30PT Technical Service, Service Publications Service Hints, Gas leak. See Warning

Page 19

TROUBLESHOOTING

Continued

WARNING: 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 neighbor’s phone. Fol- low the gas supplier’s instructions.

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

IMPORTANT: Operating heater where impurities in air exist may create odors. Cleaning supplies, paint, paint remover, cigarette smoke, cements and glues, new carpet or textiles, etc., create fumes. These fumes may mix with combustion air and create odors.

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

 

 

 

 

 

Heater produces unwanted

1.

Heater burning vapors from

1.

Ventilate room. Stop using

odors

 

paint, hair spray, glues, etc.

 

odor causing products while

 

 

See IMPORTANT statement

 

heater is running

 

2.

above

2.

Refill supply tank

 

Low fuel supply (propane/LP

 

3.

gas)

3.

Locate and correct all leaks

 

Gas leak. See Warning

 

 

statement at top of page

 

(see Checking Gas Connec-

 

 

 

 

tions, page 11)

 

 

 

 

 

 

Gas odor even when control

1.

Gas leak. See Warning

1.

Locate and correct all leaks

knob is in OFF position

 

statement at top of page

 

(see Checking Gas Connec-

 

2.

Control valve defective

2.

tions, page 11)

 

Replace control valve

 

 

 

 

 

 

Gas odor during combustion

1.

Foreign matter between con-

1.

Take apart gas tubing and

 

2.

trol valve and burner

2.

remove foreign matter

 

Gas leak. See Warning

Locate and correct all leaks

 

 

statement at top of page

 

(see Checking Gas Connec-

 

 

 

 

tions, page 11)

 

 

 

 

 

 

Moisture/condensation noticed

1.

Not enough combustion/ven-

1.

Refer to Air for Combustion

on windows

 

tilation air

 

and Ventilation requirements

 

 

 

 

(page 5)

Technical Service

You may have further questions about installation, operation or troubleshooting. If so, contact DESA Heating Products’ Technical Service Department at 1-866-672-6040. When calling please have your model and serial numbers of your heater ready.

You can also visit DESA Heating Products’techni- cal service web site at www.desatech.com.

Service Publications

You can purchase a service manual from the address listed on the back page of this manual. Send a check for $5.00 payable to DESA Heating Products.

Service Hints

When Gas Pressure Is Too Low

• pilot will not stay lit

• burner will have delayed ignition

• heater will not produce specified heat

• propane/LP gas supply may be low

You may feel your gas pressure is too low. If so, con- tact your local natural or propane/LP gas supplier.

116307-01C

www.desatech.com

19

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Contents Models SF20NT, SF20PT ResidentialGarage Models Safety Information Table of ContentsSafety Information Product Identification Safety InformationProduct Features Local CodesProviding Adequate Ventilation Air For Combustion VentilationDetermining FRESH-AIR Flow for Heater Location Ventilation AIR AIR for Combustion VentilationVentilation 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 kPaInstalling Refractory and Front Panel For Your Safety Read Before LightingOperating 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 VSGF20PTReplacement Parts AccessoriesParts Central Illustrated Parts Breakdown Parts List Keep this Warranty Warranty InformationModelos Consumidor Conserve este manual para referencias futurasModelos 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 Ventilación Aire Para Combustión VentilaciónAire del interior de la construcción para Ventilación Verifique EL Tipo DE GAS InstalaciónArtículos 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 GASGas natural Revisión DE LAS Conexiones DE GASRepare 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 DELLimpieza y Mantenimiento Inspección delPatrón 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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