Desa CTR25NR, CTR22PR, VTN25R, VTP22R Cleaning Maintenance, Service Hints, Technical Service

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CLEANING AND

MAINTENANCE

WARNING: Turn off heater and let cool before cleaning.

CAUTION:Youmustkeepcon- trol areas, burner and circulating 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 cleaning 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 a vacuum cleaner, pressurized air or 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 (200 kPa). Your local computer store, hardware store or home center may carry compressed air in a can. You can use a vacuum cleaner in the blow position. If using compressed air in a can, please follow the direc- tions 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 through 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 23). With the unit 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 23 - 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.

BATTERIES

During long periods of time when the heater is not being used, take batteries out of receiver and ignitor. Remove exhausted batteries immediately. Do not mix old and new batteries.

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.

TECHNICAL SERVICE

You may have further questions about installation, operation or troubleshooting. If so, contact DESA Heating Productsʼ 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 Productsʼtechni- cal service web site at www.desatech.com.

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www.desatech.com

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Contents What to do if YOU Smell GAS Table of Contents Safety Information Product Features Local CodesProduct Identification UnpackingProviding Adequate Ventilation AIR for Combustion VentilationDetermining FRESH-AIR Flow for Heater Location Ventilation AIR Ventilation Air From Inside BuildingInstallation Installation ItemsCheck GAS Type Locating HeaterReceiver AA Batteries Battery Cover Installing Remote Control ReceiverReceiver Wire Bushing Connector Bracket Replacing Battery in Ignitor Installing Batteries Into RemoteMounting Heater Base to Floor Where required by local codes Connecting to GAS Supply Propane/LP External Supply Tank Regulator Vent Pointing DownChecking GAS Connections Pressure Testing Heater GAS Connections Test Pressures Equal To or Less Than 1/2 Psig 3.5 kPaMake sure control knob of heater is in the OFF position ClosedFor Your Safety Read Before Lighting Operating HeaterLighting Instructions Electronic Ignitor Auxiliary Pilot Knob ButtonManual Lighting Procedure HAND-HELD Remote Control OperationTo Turn OFF GAS To Appliance Thermostat OperationChanging Set Temperature Inspecting HeaterPilot Flame Pattern Burner Flame PatternService Hints Cleaning MaintenanceTechnical Service Troubleshooting Observed Problem Possible Cause RemedyGoes out when control knob is Problem could be caused byAssembly Delayed ignition of burners Manifold pressure is too lowGas leak. See Warning Illustrated Parts Breakdown Models CTR25NR, VTN25R, CTR22PR and VTP22RParts List Accessories SpecificationsService Publications Replacement Parts Parts Central FBDPatent Pending QUÉ Hacer SI Percibe Olor a GAS Modelos CTR25NR, CTR22PR, VTN25R Y VTP22RTabla DE Contenido Información DE SeguridadContinuación Códigos Locales Identificación DEL ProductoDesempaque Características DEL ProductoAire Para Combustión Ventilación Cómo Procurar LA Ventilación AdecuadaConstrucción inusualmente sellada Espacio confinado o no confinadoAire Para Ventilación Aire del interior de la construcción para ventilaciónInstalación Verifique EL Tipo DE GASArtículos DE Instalación Ubicación DEL CalentadorInstalación DEL Receptor DE Control Remoto Receptor Baterías AACubierta de la batería Soporte del Conector Buje Del alambre ReceptorReemplazo DE LA Batería DEL Encendedor Instalación DE LAS Baterías EN EL Control RemotoConexión AL Suministro DE GAS PRECAUCIÓNEnelcasodepro- pano o gas LP, nunca conecte el caDistribuidor. Consulte Accesorios, página Revisión DE LAS Conexiones DE GASRepare todas las fugas inmediatamente Cierre la válvula de cierre del equipo consulte la figura Abra la válvula de cierre del equipo consulte la figuraVuelva a colocar el panel anterior Válvula deFuncionamiento DEL Calentador Para SU SEGURIDAD, LEA Esto Antes DE EncenderloInstrucciones DE Encendido Botón de encendido Perilla Auxiliar Del Piloto ElectrónicoFuncionamiento DEL Termostato Procedimiento DE Encendido ManualFuncionamiento DEL Control Remoto Portátil Función ManualInspección DEL Calentador Función DEL TermostatoPatrón DE LA Llama DEL Piloto Patrón DE LA Llama DELLimpieza Y Mantenimiento Servicio TécnicoSolución DE Problemas Problema Observado Causa Posible RemedioProblema Observado Causa Posible RemedioImportante anterior Clasificación Ilustrada DE Piezas Modelos CTR25NR, VTN25R, CTR22PR Y VTP22RLista DE Piezas Especificaciones AccesoriosPublicaciones Para Servicio Válvula DE Cierre DEL Equipo GA5010Piezas DE Repuesto Central DE PiezasPiezas Bajo Garantía Piezas SIN GarantíaPatente en trámite 113261-01 Rev. a 07/04

CTR25NR, CTR22PR, VTN25R, VTP22R specifications

Desa VTN25R, VTP22R, CTR22PR, and CTR25NR are renowned models in the landscape of power generation and energy efficiency solutions. These products cater to varying needs, providing reliable performance for both residential and commercial applications.

The Desa VTN25R is distinguished by its robust design and high fuel efficiency, making it an ideal choice for users looking to balance power output with energy conservation. This model features a state-of-the-art EcoThrottle technology, which adjusts engine speed according to load, significantly reducing fuel consumption and noise levels. With a maximum output of 2500 watts, the VTN25R ensures that users can power a variety of appliances and equipment without concern for overloading.

Next in line, the Desa VTP22R model stands out for its versatility and compact form factor. Weighing in at just 45 pounds, this generator is incredibly portable, making it an excellent choice for outdoor enthusiasts and those needing backup power in emergency situations. It also incorporates a user-friendly digital display, allowing users to monitor fuel levels, output wattage, and engine performance at a glance. Its quiet operation and low emissions are additional highlights that make the VTP22R an environmentally conscious option.

Turning to the CTR22PR, this generator is designed with advanced inverter technology, supplying clean and stable power suitable for sensitive electronics. Its dual fuel capability allows it to run on both gasoline and propane, offering flexibility and convenience for users in diverse situations. The ergonomic handle and lightweight design facilitate easy transport, while the safety features, including overload protection and automatic shutoff, ensure peace of mind during operation.

Lastly, the CTR25NR model boasts higher wattage capacity coupled with enhanced durability. This unit features heavy-duty components, ensuring it can withstand rigorous usage over time. With features like an LED indicators panel and advanced cooling systems, the CTR25NR promises extended run times and operational efficiency. Users appreciate its ease of maintenance and serviceability, which translate into a longer lifespan.

In summary, the Desa VTN25R, VTP22R, CTR22PR, and CTR25NR generators offer a range of features and technologies tailored to meet the needs of different users. Whether it’s fuel efficiency, portability, clean power supply, or heavy-duty performance, these models demonstrate a commitment to reliability and innovation in the power generation market.
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