Desa R70D, B70D owner manual Product Identification Unpacking, Theory of Operation

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OWNER’S MANUAL

PRODUCT IDENTIFICATION

UNPACKING

Hot Air Outlet

Handle

Upper Shell

1.Remove all packing items applied to heater for shipment.

2.Remove all items from carton.

3.Check items for shipping damage. If heater is damaged, promptly inform dealer where you bought heater.

Lower Shell

Fan Guard

 

Air Filter

End Cover

Fuel Tank

Fuel Cap

Side Cover

Ignition Control Assembly (assembly on inside of side cover)

Power Cord

Figure 1 - 70,000 Btu/Hr

THEORY OF OPERATION

The Fuel System: The air pump forces air through the air line. The air is then pushed through the nozzle. This air causes fuel to lift from the tank. A fine mist of fuel is sprayed into the combustion chamber.

The Air System: The motor turns the fan. The fan pushes air into and around the combustion chamber. This air is heated and provides a stream of clean, hot air.

The Ignition System: The ignition con- trol assembly provides power to the ignitor. This ignites the fuel/air mixture in the com- bustion chamber.

The Flame-Out Control System: This system causes the heater to shut down if the flame goes out.

 

Combustion Chamber

Ignitor

Motor

Air Pump

 

 

 

Air Intake

 

 

 

Fan

Filter

Clean

 

 

 

 

Heated

 

 

 

Cool

Air Out

 

 

 

Air In

 

 

 

 

Air

 

 

 

 

Output

 

 

 

 

Filter

Fuel

Nozzle

Fuel

Air Line

Ignition Control

Tank

 

Filter

To Burner

Assembly

 

Air For Fuel System

 

Air For Combustion

Fuel

 

 

And Heating

 

 

 

 

Figure 2 - Cross Section Operational View

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Contents Portable Forced AIR Heater Portable Forced AIR Heaters Safety InformationTheory of Operation Product Identification UnpackingTo Stop Heater To Reset HeaterFuels Ventilation Operation To Start HeaterCorrosive fumes How Often How ToFault Condition Possible Cause Remedy TroubleshootingFAN Service ProceduresPump Pressure Adjustment Upper Shell RemovalIgnitor Ignition Control AssemblyProcedure for Replacing Fuse Fuel FilterFuel and AIR Line Replacement Proper Routing Nozzle AssemblyParts not Under Warranty Replacement PartsTechnical Service Parts Under WarrantyIgnition Control SpecificationsWiring Diagram AccessoriesR70D B70D Illustrated Parts BreakdownNumber Description QTY Parts ListLimited Warranty Warranty ServiceRepair Service

R70D, B70D specifications

Desa B70D and R70D are prominent models within the advanced range of digital printing solutions offered in the contemporary market. These printers are designed to meet the diverse requirements of businesses and individual users who demand high-quality prints with exceptional efficiency.

One of the main features of the Desa B70D is its impressive print resolution, which can reach up to 1200 x 1200 DPI. This high resolution ensures that every detail is captured crisp and clear, making it ideal for producing professional-grade documents, brochures, and marketing materials. The R70D model complements this with its enhanced color reproduction capabilities, allowing for vibrant prints that stand out in any setting.

Both models incorporate cutting-edge technology to streamline the printing process. They support automatic duplex printing, significantly reducing paper consumption and costs, as well as minimizing environmental impact. This feature is particularly beneficial for businesses looking to promote sustainability while maintaining productivity.

Another key characteristic of the Desa B70D and R70D is their robust and reliable performance. Equipped with high-capacity ink systems, these printers can handle large printing volumes with minimal maintenance. This efficiency translates to less downtime, making them suitable for environments where time and productivity are of the essence.

User-friendly interfaces are also a defining feature of these printers. They come with intuitive control panels and easy navigation systems, making them accessible even for those with limited technical expertise. Additionally, connectivity options such as Wi-Fi, Ethernet, and mobile printing capabilities ensure that users can print easily from various devices, enhancing workflow efficiency.

In conclusion, the Desa B70D and R70D represent advanced solutions in the digital printing landscape. Their combination of high-resolution output, sustainable features, and user-friendly functionality makes them an excellent choice for businesses and individuals alike. As technology continues to evolve, these models are well-equipped to meet the future demands of printing. Whether you require sharp text documents or vibrant visuals, these printers deliver performance that stands out in today’s competitive market. Their reliability and efficiency make them an invaluable asset to any printing operation, thereby establishing a strong foothold in the realm of digital printing technology.