Desa LSFG20NT, VSF30PT installation manual Table of Contents, Safety Information

Page 2

Table of Contents

Safety Information

3

Troubleshooting

16

Local Codes

4

Technical Service

19

Product Identification

4

Service Publications

19

Unpacking

4

Service Hints

19

Product Features

4

Specifications

20

Air For Combustion and Ventilation

5

Accessories

21

Installation

7

Replacement Parts

21

Operating Heater

12

Parts Central

21

Inspecting Heater

14

Illustrated Parts Breakdown and Parts List

22

Cleaning and Maintenance

15

Warranty Information

24

Safety Information

WARNING: Improper installation, adjustment, altera- tion, service or maintenance can cause injury or prop- erty damage. Refer to this manual for correct installation and operational procedures. For assistance or addi- tional information consult a qualified installer, service agency or the gas supplier.

WARNING: This is an unvented gas-fired heater. It uses air (oxygen) from the room in which it is installed. Provi- sions for adequate combustion and ventilation air must be provided. Refer to Air for Combustion and Ventilation section on page 5 of this manual.

This appliance may be installed in an aftermarket,* per- manently located, manufactured (mobile) home, where not prohibited by local codes.

This appliance is only for use with the type of gas indi- cated on the rating plate. This appliance is not convert- ible for use with other gases.

* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer

State of Massachusetts: The installation must be made by a licensed plumber or gas fitter in the Commonwealth of Massachusetts.

Sellers of unvented propane or natural gas-fired supplemental room heaters shall provide to each purchaser a copy of 527 CMR 30 upon sale of the unit.

Vent-free gas products are prohibited for bedroom and bathroom installation in the Common- wealth of Massachusetts.



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Contents Garage Models ResidentialModels SF20NT, SF20PT Table of Contents Safety InformationSafety Information Local Codes Safety InformationProduct Features Product IdentificationDetermining FRESH-AIR Flow for Heater Location Air For Combustion VentilationProviding Adequate Ventilation Ventilation Air From Inside Building AIR for Combustion VentilationVentilation AIR Check GAS Type InstallationInstallation Items Ventilation Air From OutdoorsInstalling Heater to Wall Locating HeaterPlacing Heater On Mounting Screws Connecting to GAS SupplyMarking Screw Locations Locate hardware packet behind left side door of heaterNatural Gas Propane/LPTest Pressures Equal To or Less Than 1/2 Psig 3.5 kPa Pressure Testing Heater Gas ConnectionsChecking GAS Connections Open equipment shutoff valve see FigureOperating Heater For Your Safety Read Before LightingInstalling Refractory and Front Panel Shutting Off Heater Lighting InstructionsTo Turn OFF GAS To Appliance Shutting Off Burner Only pilot stays litOperation Manual Lighting ProcedureInspecting Heater Pilot Flame PatternBurner Pilot Air Inlet Cleaning MaintenanceODS/PILOT and Burner CabinetTroubleshooting Observed Problem Possible Cause RemedyTroubleshooting When heated, vapors from Turn heater off when using Noise when burner is litDirty or partially clogged Clean burner see Cleaning Turn off air supplyWhen Gas Pressure Is Too Low Technical ServiceService Publications Service Hints Gas leak. See WarningVSFG20NT VSGF20PT SpecificationsLSF20NT, LSFG20NT, VSF20NT LSF20PT, LSFG20PT, VSF20PT SF30NT SF30PTParts Central AccessoriesReplacement Parts Illustrated Parts Breakdown Parts List Warranty Information Keep this WarrantyModelos Para Cochera Consumidor Conserve este manual para referencias futurasModelos Tabla de contenido Información de seguridadInformación de seguridad Desempaque Códigos localesIdentificación del Producto Características del ProductoConstrucción inusualmente sellada Aire para combustión VentilaciónCómo Procurar LA Ventilación Adecuada Espacio confinado y no confinadoAire del interior de la construcción para Ventilación Aire Para Combustión VentilaciónAire Para Ventilación Artículos DE Instalación InstalaciónVerifique EL Tipo DE GAS De las partes anterior, superior Ubicación DEL CalentadorDonde cortinas, muebles, ropa Fuertes corrientes de aireColocación del calentador en los Tornillos de montaje Instalación DEL Calentador EN LA ParedDoble en anclaje de pared como se muestra en la figura Coloque el calentador en los tornillos de montajeConexión AL Suministro DE GAS Ventila apuntando hacia abajoRepare todas las fugas inmediatamente Revisión DE LAS Conexiones DE GASGas natural Instalación del panel anterior y el refractario Abra la válvula de cierre del equipo consulte la figuraInstale el panel anterior y el refractario Instale un difusor frontal como se muestra en la figuraFuncionamiento del Calentador Instrucciones DE EncendidoFuncionamiento DEL Inspección del CalentadorCómo Cerrar EL Suministro DE GAS AL Aparato Encendido ManualPatrón DE LA Llama DEL Calentador Inspección delLimpieza y Mantenimiento SF30NT EspecificacionesGabinete LSF30NT, VSF30NTSolución de problemas Causa Posible RemedioSolución DE Problemas Combustión El problema desapareceráLlama amarilla durante la No hay suficiente aire En el quemadorConsejos para servicio Servicio técnicoPublicaciones de servicio Al inicio de la páginaCentral de piezas AccesoriosPiezas de repuesto 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.