Desa KEROSENE HIGH PRESSURE PORTABLE FORCED AIR HEATERS owner manual Gauge

Page 11

SERVICE PROCEDURES

Continued

8.Inspect nozzle for damage. If damaged or clogged, replace nozzle.

9.Make sure plug is in place on burner head.

10.Replace nozzle into burner head and tighten firmly (175-200 inch-pounds).

11.Attach burner head to combustion chamber.

12.Install spark plug in burner head.

13.Attach spark plug wire to spark plug.

14.Attach fuel line to solenoid valve. Tighten firmly.

15.Replace upper shell.

PUMP PRESSURE ADJUSTMENT FOR HEATERS WITH FUEL FILTER/ CANISTER EXTERNAL TO PUMP

1.Remove pressure gauge plug from fuel pump port marked “GAUGE.”

2.Install accessory pressure gauge (part num- ber 110380-01) to fuel pump port marked “GAUGE” (see Figure 11).

3.Start heater (see Operation, page 4). Allow motor to reach full speed.

4.Adjust pressure. Use small flat blade screw- driver to turn slotted screw at fuel pump pres- sure adjusting port. Turn screw clockwise to increase pressure. Turn screw counterclockwise to decrease pressure. See specifications in Fig- ure 11 for correct pressure for each model.

5.Stop heater (see page 5).

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

Model

Pump Pressure

350,000 Btu/Hr

100 PSI

600,000 Btu/Hr

110 PSI

PUMP PRESSURE ADJUSTMENT FOR HEATERS WITH FUEL FILTER INTERNAL TO PUMP

1.Remove pressure gauge plug from fuel pump port marked “GAUGE.”

2.Install accessory pressure gauge (part number 110380-01) to fuel pump port marked “GAUGE” (see Figure 12). Do not use bleeder valve port to check the pressure. The bleeder valve port contains pressure higher than operating pressure. Setting pump pressure with gauge in the bleeder valve port results in wrong operating pressure.

3.Start heater (see Operation, page 4). Allow motor to reach full speed.

4.Adjust pressure. Use small flat blade screw- driver to turn slotted screw at fuel pump port at top right side of pump. Turn screw clockwise to increase pressure. Turn screw counterclockwise to decrease pressure. See specifications in Figure 12 for correct pressure for each model.

5.Stop heater (see page 5).

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

Model

Pump Pressure

350,000 Btu/Hr

100 PSI

600,000 Btu/Hr

110 PSI

Pressure

psi

Gauge

 

Fuel Pump

 

Port Marked

 

“GAUGE”

 

Pressure

Gauge

psi

Fuel Pump Port

Marked “GAUGE”

Pressure

Adjustment Port

Figure 12 - Adjusting Pump Pressure

Fuel Pump

Port Marked

“PRESS ADJ”

Figure 11 - Adjusting Pump Pressure

110098-01F

www.desatech.com

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Contents Table of Contents Top 4 Ft Safety InformationFollow all local ordinances and codes when using heater FuelingOperation Product IdentificationUnpacking To Start Heater Follow all ventilation and safety informationFuels VentilationUnplug extension cord from outlet STORING, Transporting of ShippingTo Stop Heater To Restart HeaterPreventative Maintenance Schedule Observed Problem Possible Cause Remedy TroubleshootingDamaged electronic ignitor Wrong fuel Remove fuel see Storing Wrong pump pressure Adjust pump pressure see Can be seenFill with clean fuel TankSpark Plug Service ProceduresUpper Shell Removal FAN Blades and AIR DeflectorsGauge Remove pressure gauge plug from fuel pump port marked GaugeRemove upper shell see Upper Shell Re- moval, Fuel LinesFuel Filters Models B350D, SB350D and R350A Illustrated Parts BreakdownNTC-4C Parts ListModels B600D, SB600D and R600A NTC-4C Illustrated Parts Breakdown and Part List Burner Head Assembly 350,000 and 600,000 BTU/HRNPF-5C Part List Motor and Pump Assembly 350,000 and 600,000 BTU/HROutput Rating Btu/Hr 350,000 600,000 Fuel SpecificationsWiring Diagram Replacement Parts Maintenance KitsTechnical Service Accessory110098-01F Limited Warranty Warranty and Repair Services

KEROSENE HIGH PRESSURE PORTABLE FORCED AIR HEATERS specifications

Desa Kerosene High Pressure Portable Forced Air Heaters are engineered to deliver efficient and effective heating solutions for a variety of applications. These heaters stand out for their portability, high heating capacity, and adaptability to different environments, making them ideal for construction sites, warehouses, livestock facilities, and other outdoor settings.

One of the standout features of Desa heaters is their high-pressure design. This technology allows for rapid heating by forcing hot air into the surrounding area at a higher velocity compared to traditional heaters. This means that larger spaces can be heated more quickly and efficiently. With adjustable outlets, users can direct heat where it is needed most, further optimizing energy use and comfort.

These heaters utilize high-quality kerosene fuel, which offers a robust heating output while maintaining a clean burn. Kerosene is widely available and often more cost-effective than other heating fuels. The heaters are designed to efficiently burn kerosene, ensuring minimal emissions and environmental impact. This makes them suitable for both indoor and outdoor use when proper ventilation is provided.

Safety is a primary focus in the design of Desa high-pressure heaters. They are equipped with multiple safety features, including automatic shut-off mechanisms, which activate in the event of overheating or abnormal operation conditions. Additionally, robust construction ensures durability, allowing these heaters to withstand tough working conditions while providing reliable performance over time.

Ease of operation is another key characteristic of Desa heaters. Many models come with user-friendly controls that allow for straightforward adjustments of temperature settings and fan speeds. Portability is enhanced through built-in handles and lightweight designs, allowing users to transport the heaters with ease.

In conclusion, Desa Kerosene High Pressure Portable Forced Air Heaters offer effective heating solutions that combine high performance, safety, and convenience. With their advanced features, durability, and efficiency, they stand as a reliable choice for anyone needing substantial heat output in challenging environments. Whether for commercial, industrial, or agricultural use, these heaters provide an essential service by delivering warmth whenever and wherever it is most required.