Desa BLP375A, RLP375A owner manual Theory of Operation Propane Supply, Ventilation

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375,000 BTU/HR - A SERIES

PROPANE CONSTRUCTION HEATER

THEORY OF OPERATION

PROPANE SUPPLY

The Fuel System: The hose/regulator assembly attaches to the propane gas sup- ply. The propane gas moves through the solenoid valve and out the nozzle.

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 direct spark ignitor (DSI) sends voltage to the ignitor. The ignitor ignites the fuel and air mixture.

The Safety Control System: This sys- tem causes the heater to shut down if the flame goes out. The motor will continue to run, but no heat is produced.

Propane gas and propane tank(s) are to be furnished by the user.

Use this heater only with a propane vapor withdrawal supply system. See Chapter 5 of the Standard for Storage and Handling of Liquefied Petroleum Gas, ANSI/NFPA 58 and the Propane Installation Code CAN/ CGA B149.2. Your local library or fire de- partment will have these booklets.

CombustionIgnitor

Chamber

Fan

Clean Heated Air Out (Front)

Motor

The amount of propane gas ready for use from propane tanks varies. Two factors de- cide this amount:

1.The amount of propane gas in tank(s)

2.The temperature of tank(s)

The chart below shows the number of 100- pound tanks needed to run this heater.

 

 

Cool Air

 

 

In (Back)

 

 

Power

 

 

Cord

DSI

 

 

Nozzle

Solenoid

 

 

Valve

Hose/Regulator

Air For Combustion

Air For Heating

Assembly

Figure 2 - Cross Section Operational View

Do not operate this product with any tank smaller than 100 pounds.

Temperature (°F) At Tank

 

40°

32° 20° 0° -10°-20°

 

 

 

Number

3

(Use larger tank below

of tanks

 

40°F)

 

 

 

Less gas is vaporized at lower temperatures. You may need a larger tank in colder weather. Your local propane gas dealer will help you select the proper supply system. The mini- mum surrounding air temperature rating for each heater is -20°F.

VENTILATION

WARNING: Follow the mini- mum fresh, outside air ventila- tion requirements. If proper fresh, outside air ventilation is not pro- vided, carbon monoxide poison- ing can occur. Provide proper fresh, outside air ventilation be- fore running heater.

Provide at least three square feet of fresh, outside air for each 100,000 Btu/Hr of rat- ing. This heater requires a fresh air opening of at least 11.25 square feet. Provide extra fresh air if more heaters are being used.

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Contents Propane Construction Heaters Safety Information Propane Construction HeaterProduct Identification Unpacking 375,000 Btu/Hr ModelsTheory of Operation Propane Supply VentilationOperation InstallationTo Start Heater Maintenance StorageTo Stop Heater To Restart HeaterService Procedure Cleaning FANWiring Diagrams Wiring DiagramSpecifications Replacement PartsAccessories Technical ServiceIllustrated Parts Breakdown BLP375A RLP375AParts List KEY Part Number Description QTYWarranty and Repair Service

BLP375A, RLP375A specifications

Desa RLP375A and BLP375A represent a significant advancement in the category of portable heating solutions. These models, designed to cater to both residential and commercial needs, merge efficiency with practicality, making them standout options for consumers seeking reliable heating.

Both units feature a sleek, modern design that allows for versatile placement in various settings, whether it be a workshop, garage, or living area. The RLP375A is known for its radiant heating technology, which facilitates consistent warmth by emitting infrared heat. This method is particularly effective in spaces with high ceilings or larger areas, as it directly heats objects and people rather than merely warming the air.

On the other hand, the BLP375A is equipped with a blower fan that circulates warm air throughout a room. This forced-air system enhances the distribution of heat, ensuring that even larger areas are warmed quickly and efficiently. The combination of these technologies allows both models to operate with impressive energy efficiency, significantly reducing heating costs while maintaining comfortable room temperatures.

One of the primary characteristics of the RLP375A and BLP375A is their user-friendly control systems. These models often come with adjustable thermostats, allowing users to set their desired temperature easily. Moreover, they include safety features such as overheat protection and tip-over switches which automatically shut the units down in unsafe situations, providing peace of mind to consumers.

Durability is another hallmark of these heating units. Built with high-quality materials, they are designed to withstand regular use and adverse conditions, making them suitable for both indoor and outdoor environments. The portability of these units is enhanced by their lightweight design and integrated handles, facilitating easy movement from one location to another.

In terms of energy consumption, both the RLP375A and BLP375A are engineered to provide maximum heating output with minimal energy usage, conforming to stringent environmental standards to promote sustainability. Additionally, their quiet operation means they are ideal for use in noise-sensitive environments.

Customers looking for dependable, efficient, and safe heating solutions will find Desa's RLP375A and BLP375A models to be excellent choices, reflecting the brand's commitment to quality and innovation in heating technology.