Desa NTH150, NTH50, NTH70 Theory Operation, To Start Heater, Extension Cord Wire Size Requirements

Page 5

OWNER’S MANUAL

THEORY OF

OPERATION

The Fuel System: The air pump forces air through the air line. The air is then pushed through the burner head 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 electronic ignitor sends voltage to the spark plug. The spark plug ignites the fuel and air mixture.

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

OPERATION

WARNING: Review and un- derstand the warnings in the Safety Information Section. They are needed to safely operate this heater. Follow all local codes when using this heater.

TO START HEATER

1.Follow all ventilation and safety infor- mation.

2.Fill fuel tank with kerosene or No. 1 fuel oil.

3.Attach fuel cap.

4.Plug power cord of heater into standard 230 volt/50 hertz, grounded (earthed) outlet. Use an extension cord if needed. Use only a three-prong, grounded (earthed) extension cord.

EXTENSION CORD WIRE SIZE REQUIREMENTS

Up to 30.5 meters (100 feet) long, use 1.0 mm2 (16 AWG) conductor

30.6to 61 meters (101 to 200 feet) long, use

1.5mm2 (14 AWG) conductor

Push ON/OFF switch to ON and heater should start. If heater does not start, press flame-out control reset button (see Figures 5 and 6).

TO STOP HEATER

1.Push ON/OFF switch to OFF.

TO RESTART HEATER

1.Wait 2 minutes after stopping heater.

2.Repeat steps under To Start Heater.

Flame-Out Control

Reset Button

ON/OFF Switch

 

 

 

 

Motor

Air Pump

 

Combustion

Spark

 

Fan

Intake Air

 

Chamber

Plug

Burner

Filter

 

 

 

Head

 

 

Clean

 

 

 

 

Cool

Heated

 

 

 

 

 

 

 

 

Air In

Air Out

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output

 

 

 

 

 

Air Filter

Fuel

Nozzle

Fuel

 

Air Line

Electronic

Tank

Filter

 

To Burner

Ignitor

 

 

 

Air For Fuel

 

Air For

 

 

 

 

Combustion

Fuel

 

System

 

 

 

And Heating

 

 

 

 

 

Figure 4 - Cross Section Operational View

Figure 5 - Flame-Out Control Reset Button, 35/50/70,000 Btu/Hr

Flame-Out Control

Reset Button

ON/OFF

Switch

Figure 6 - Flame-Out Control Reset Button, 100/150,000 Btu/Hr

104976

5

Page 4 Page 6
Image 5
Page 4 Page 6
Contents Portable Forced AIR Heaters Portable Forced AIR Heaters Safety InformationFuels Product IdentificationUnpacking Tools Needed AssemblyVentilation Theory Operation Extension Cord Wire Size RequirementsTo Start Heater To Stop HeaterStoring TRANSPORTING, or Shipping Preventative MaintenanceSchedule How Often How ToObserved Fault Possible Cause Remedy TroubleshootingFuel Filter Service ProceduresUpper Shell Removal 35,000 Btu/Hr Model Spark PlugAir Output, Air Intake, and Lint Filters Pump Pressure AdjustmentRemoving Air and Fuel Line Hoses, 35,000 Btu/Hr Model NozzlePump Rotor Procedure if Rotor is BindingFan SpecificationsWiring Diagrams NTH35 35,000 BTU/HR Model Illustrated Parts BreakdownKEY Part Number Description QTY Parts ListNTH50 50,000 BTU/HR Model Burner Head AssemblyMotor and Pump Assembly WLE-3 NTH70 70,000 BTU/HR Model Parts List NTH100 100,000 BTU/HR Model Lock Washer, #10 M16660 Photocell Bracket NTH150 150,000 BTU/HR Model Lock Washer, #10 HA3019 Photocell Assembly Wheels Handles AccessoriesAIR Gauge KIT HA1180 Heavy Duty Wheels and Handle KIT HA1202EC Conformity Declaration EC Conformity DeclarationWarranty Information

NTH35, NTH70, NTH100, NTH50, NTH150 specifications

Desa NTH series consists of exceptional products designed to meet diverse demands in various applications. With models including NTH150, NTH35, NTH70, NTH100, and NTH50, this series offers a range of specifications and capabilities that cater to both residential and commercial needs.

The NTH150 model is the flagship in the series, featuring a powerful performance with a high output capacity. This model excels in energy efficiency, making it an exemplary choice for users aiming to reduce operational costs while preserving peak performance. With advanced temperature control systems, the NTH150 provides consistent and reliable results in various environments.

Moving to the NTH35, this model is designed for smaller applications while still ensuring high efficiency. It is compact and user-friendly, making it an ideal choice for domestic use. The NTH35 incorporates intuitive controls that allow users to easily monitor and adjust settings, thus ensuring optimal performance that meets the specific needs of smaller spaces.

The NTH70 strikes a balance between power and compactness, making it a versatile option for medium-range applications. This unit is designed with robustness in mind, incorporating durable materials that ensure longevity. It's equipped with smart sensors that track and adjust performance, maximizing efficiency and reducing wastage.

The NTH100 is known for its adaptability in various settings. It features a sleek design and is equipped with the latest technological advancements, including smart connectivity options. Users can effortlessly integrate the NTH100 into their existing setups, allowing remote monitoring and control through a mobile app. This feature enhances convenience and operational efficiency.

Lastly, the NTH50 serves as a practical solution for users seeking a middle ground between power and energy efficiency. With a well-rounded set of features, it accommodates diverse applications while promoting sustainability. Its straightforward interface simplifies operation, allowing even novice users to achieve optimal performance.

In summary, the Desa NTH series, comprising NTH150, NTH35, NTH70, NTH100, and NTH50, showcases a blend of innovation, efficiency, and ease of use. Each model is tailored to meet specific needs while providing advanced features and technologies that enhance performance and functionality. Users can confidently select a model from this series, knowing that they are investing in reliable, high-quality products that will stand the test of time.
Top Page Image Contents