Desa B350D, B600D owner manual Pump Pressure Adjustment, Procedure if Pump is Binding

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OWNER’S MANUAL

SERVICE PROCEDURES

Continued

Nozzle

Plug

Burner

Head

Figure 9 - Replacing Nozzle

Pump Pressure Adjustment

Spark

Plug

Spark

Solenoid Plug

Valve Wire

Fuel

Line

PUMP

(Procedure if Pump is Binding)

1.Remove upper shell (see page 10).

2.Loosen hex screw on flange clamp at rear of motor with 5/16" nut-driver (see Figure 11).

3.Turn fan with hand (see Figure 12).

4.If fan turns freely, tighten screw on flange clamp.

5.If fan does not turn freely, replace pump.

6.Replace upper shell.

Hex Screw

On Flange

Clamp

1.Remove pressure gage plug from fuel pump port marked “GAGE.”

2.Install accessory pressure gage (part number M4574) to fuel pump port marked “GAGE” (see Figure 10).

Pressure

Gage

3.Start heater (see Operation, page 5). Allow motor to reach full speed.

4.Adjust pressure. Use small flat blade screwdriver to turn slotted screw at fuel pump port marked “PRESS ADJ.” Turn screw clockwise to increase pressure. Turn screw counterclockwise to de- crease pressure. See specifications at right for correct pressure for each model.

5.Stop heater (see page 5).

6.Remove pressure gage. Replace pres- sure gage plug in fuel pump port marked “GAGE.”

Figure 11 - Location of Screw on Flange Clamp

Fuel Pump Port

Fuel Pump Port

Marked “PRESS

Marked “GAGE”

ADJ”

Model

Pump Pressure

350,000 Btu/Hr

100 PSI

600,000 Btu/Hr

110 PSI

Figure 10 - Adjusting Pump Pressure

Figure 12 - Turning Fan with Hand

Continued

099507

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Image 11
Contents High Pressure Portable Forced AIR Heaters Fueling Safety InformationUnpacking Product IdentificationOpening Theory Fuelsventilation OperationFresh Air Opening Requirements To Stop Heater Extension Cord Wire Size RequirementsStoring TRANSPORTING, or Shipping To Start HeaterHow Often Preventative Maintenance ScheduleObserved Problem Possible Cause Remedy TroubleshootingStoring, Transporting, or Shipping Adjust pump pressure see Pump Pres Nozzle Service ProceduresUpper Shell Removal Spark PlugPump Pump Pressure AdjustmentProcedure if Pump is Binding Tank Fuel Filter Procedure for Tightening Fuel LinesFuel Lines Fuel FiltersAccessory SpecificationsWiring Diagram Maintenance KitsIllustrated Parts Breakdown Description QTY Parts List600,000 BTU/HR NPC-1C Δ Motor and Pump Assembly 350,000 and 600,000 Btu/Hr Burner Head Assembly 350,000 and 600,000 Btu/Hr099507 Corporate Headquarters Limited WarrantyParts and Service Under Warranty Parts and Repair Service

B350D, B600D specifications

The Desa B350D and B600D are two cutting-edge heating appliances designed to meet modern demands for efficiency, performance, and user convenience. These models, known for their reliable heating capabilities, incorporate advanced technologies that enhance both functionality and comfort in various environments.

The Desa B350D is a mid-range option that is ideal for smaller spaces. It boasts a compact design that allows it to fit seamlessly into any room, while still delivering substantial heating power. The B350D features an adjustable thermostat, which gives users complete control over their heating needs. With a maximum output of 35,000 BTUs, it can effectively heat areas up to approximately 1,200 square feet. The unit is equipped with an innovative multi-fuel system that allows it to operate on natural gas, propane, or liquid fuel, providing versatility and convenience to users.

On the other hand, the Desa B600D is a more powerful option, designed for larger spaces requiring higher heating capacities. With an output capacity of 60,000 BTUs, it efficiently warms areas up to 2,000 square feet, making it a perfect choice for workshops, garages, or large living spaces. Just like its smaller counterpart, the B600D features a user-friendly adjustable thermostat for personalized comfort.

Both models integrate safety features such as a tilt switch, which automatically shuts off the unit if it is tipped over, ensuring peace of mind when in use. Additionally, these units are designed with a durable exterior that is built to withstand the rigors of frequent usage.

Energy efficiency is a critical consideration in today's eco-conscious market, and the Desa B350D and B600D deliver on this front as well. Both models feature an efficient burner system that maximizes fuel utilization, reducing overall consumption and lowering heating costs.

In terms of maintenance, both models are designed for easy access to components, allowing users to perform routine checks and maintenance without hassle. The user manuals provide clear instructions, ensuring that even those with minimal technical expertise can keep their units in optimal working condition.

In summary, the Desa B350D and B600D stand out in the heating appliance market for their powerful performance, versatile fuel options, and user-friendly features. Whether for residential or commercial applications, these models represent a reliable choice for those seeking efficient and effective heating solutions.