Desa NTH50-2, NTH35-2 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 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 sys- tem causes the heater to shut down if the flame goes out.

OPERATION

WARNING: Review and un- derstand the warnings in the Safety Information section, page

2.They are needed to safely op- erate 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 240 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 () position and heater should start in 5 seconds. If ON/OFF switch light does not come on or heater does not start, see Troubleshooting (pages 6 and 7).

TO STOP HEATER

Push ON/OFF switch to OFF (O)position.

TO RESET HEATER

1.Push ON/OFF switch to OFF (O) posi- tion and wait 10 seconds (2 minutes if heater has been running).

2.Repeat steps under To Start Heater.

Combustion Chamber

Motor

Air Pump

 

Ignitor

Air Intake

 

Fan

Filter

Clean

 

Cool

Heated

 

 

Air

Air Out

 

 

In

 

 

O

ON/OFF Switch with Light

Air

Output

Filter Figure 5 - ON/OFF Switch, 35/50/70,000

Btu/Hr Models

Fuel

Nozzle

Fuel

Air Line

Ignition Control

Tank

 

Filter

To Burner

Assembly

 

Air For Fuel System

 

Air For Combustion

Fuel

 

 

And Heating

 

 

 

 

Figure 4 - Cross Section Operational View

O

ON/OFF Switch with Light

Figure 6 - ON/OFF Switch, 100/150,000 Btu/Hr Models

105787

5

Image 5
Contents Portable Forced AIR Heaters Portable Forced AIR Heaters Safety InformationFuels Product IdentificationUnpacking Tools Needed AssemblyVentilation To Reset Heater Extension Cord Wire Size RequirementsTheory Operation To Start HeaterTroubleshooting Preventative MaintenanceStoring TRANSPORTING, or Shipping ScheduleSee Fuel Filter, Upper Shell Removal Service ProceduresFuel Filter 35/50/70,000 Btu/Hr ModelsIgnitor Disconnecting Ignitor Wires from Ignition Control AssemblyAIR OUTPUT, AIR INTAKE, and Lint Filters Pump Pressure AdjustmentFuel and AIR Line Replacement Proper Routing Nozzle AssemblyPump Rotor Procedure if Rotor is BindingRemove Old Assembly Ignition Control AssemblyInstalling the New Assembly FAN35,000 BTU/HR Model Motor and Pump AssemblyIllustrated Parts Breakdown Number Description QTY Parts List50,000 BTU/HR Model FHPF3-5C 70,000 BTU/HR Model Parts List NTH100-2 100,000 BTU/HR Model NTH100-2 NTH150-2 150,000 BTU/HR Model NTH150-2 100,000 and 150,000 BTU/HR Models Wheels HandlesWiring Diagram SpecificationsIgnition Control ASSEMBLY/PHOTOCELL Tester HA1170 AccessoriesAIR Gauge KIT HA1180 Heavy Duty Wheels and Handle KIT HA1202EC Conformity Declaration EC Conformity DeclarationWarranty Information

NTH35-2, NTH70-2, NTH50-2, NTH100-2, NTH150-2 specifications

Desa NTH series includes advanced models like NTH150-2, NTH70-2, NTH50-2, NTH100-2, and NTH35-2. Each of these models is designed to cater to diverse needs in heating, ventilation, and air conditioning systems, ensuring optimal performance and energy efficiency.

The NTH150-2 is a powerful unit boasting an output capacity of 150,000 BTU. It features a dual-stage heating system, allowing for rapid temperature changes while maintaining energy efficiency. This model is equipped with advanced sensor technology that automatically adjusts the heating output based on room conditions, creating a comfortable indoor environment. Additionally, its robust build ensures durability and longevity.

Next in line is the NTH70-2, a medium-capacity heater suitable for residential settings. This model focuses on user-friendliness with an intuitive digital control panel, offering precise temperature settings and timer functions. The NTH70-2 is also designed with an eco-mode feature, significantly reducing energy consumption while still delivering consistent heating performance.

The NTH50-2 is designed for smaller spaces, providing an output of 50,000 BTU. This model emphasizes portability with a compact design and lightweight construction. It includes safety features like overheat protection and automatic shut-off, making it an excellent choice for individual rooms or smaller apartments. Its noise-reduction technology also ensures quiet operation, enhancing user comfort.

The NTH100-2 strikes a balance between capacity and efficiency, making it a versatile option for various applications. This model incorporates modern inverter technology, enabling it to adjust its power usage based on demand. This results in lower energy bills without compromising the heating experience. The NTH100-2 is also equipped with Wi-Fi connectivity, allowing users to control their heating system remotely via a smartphone app.

Finally, the NTH35-2 serves as an energy-efficient solution for extremely small spaces or as a supplemental heating source. It features low-energy heating technology, which ensures that operational costs remain minimal. This unit is praised for its easy installation and maintenance, making it an ideal choice for those looking for practicality without sacrificing performance.

Overall, the Desa NTH series exemplifies a commitment to innovative heating solutions, blending advanced technology, user-friendly designs, and energy efficiency to meet a wide range of indoor climate needs.