Desa D20N Storing TRANSPORTING, or Shipping, Preventative Maintenance, Schedule, Troubleshooting

Page 6

D20N, D30N AND D44N MODELS PORTABLE FORCED AIR HEATERS

STORING,

TRANSPORTING, OR SHIPPING

Note: If shipping, transport companies re- quire fuel tanks to be empty.

1.Drain fuel tank.

Note: Some models have drain plug on underside of fuel tank. If so, remove drain plug to drain all fuel. If heater does not have drain plug, drain fuel through fuel cap opening. Be sure all fuel is removed.

2.Replace drain plug if provided.

3.If any debris is noted in old fuel, add 1 or 2 quarts of clean kerosene to tank, stir, and drain again. This will prevent excess debris from clogging filters dur- ing future use.

4.Replace fuel cap or drain plug. Prop- erly dispose of old and dirty fuel. Check with local automotive service stations that recycle oil.

5.If storing, store heater in dry place. Make sure storage place is free of dust and corrosive fumes.

IMPORTANT: Do not store kerosene over summer months for use during next heating season. Using old fuel could damage heater.

PREVENTATIVE

WARNING: Never service heater

MAINTENANCE

while it is plugged in, operating, or hot.

SCHEDULE

Severe burns and electrical shock can

occur.

 

 

Item

How Often

How To

Fuel tank

Flush every 150-200 hours of

See Storing, Transporting, or Ship-

 

operation or as needed

ping

Air output and

Replace every 500 hours of

See Air Output, Air Intake, and Lint

lint filters

operation or once a year

Filters, page 10

Air intake filter

Wash and dry with soap and

See Air Output, Air Intake, and Lint

 

water every 500 hours of op-

Filters, page 10

 

eration or as needed

 

Fuel filter

Clean twice a heating season

See Fuel Filter, page 8

 

or as needed

 

Ignitor

No maintenance required

 

Fan blades

Clean every season or as

See Fan, page 13

 

needed

 

Motor

Not required/permanently lu-

 

 

bricated

 

TROUBLESHOOTING

WARNING: Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur.

ATTENTION: The ignition control has built-in protection against current overloads. Use the light in the ON/OFF switch to troubleshoot the fault condition.

FAULT CONDITION

POSSIBLE CAUSE

REMEDY

Motor does not start five seconds after heater is plugged in (ON/OFF switch light remains on)

1. Bad electrical connection between motor

1. Check all electrical connections. See

and ignition control assembly or ignition

Wiring Diagram, page 21

control assembly and power cord

 

 

 

WARNING: High voltage!

 

 

 

 

 

 

 

2.

Blown fuse on ignition control assembly

2.

See Ignition Control Assembly, page 13

3.

Binding pump rotor

3.

If fan does not turn freely, see Pump

 

 

 

 

Rotor, page 12

4.

Defective ignition control assembly

4.

Replace ignition control assembly

5.

Defective motor

5.

Replace motor

6

105843

Page 5 Page 7
Image 6
Page 5 Page 7
Contents Portable Forced AIR Heaters Safety Information D20N, D30N and D44N Models Portable Forced AIR HeatersProduct Identification Unpacking FuelsAssembly VentilationTools Needed Theory Operation To Reset HeaterExtension Cord Wire Size Requirements To Start HeaterStoring TRANSPORTING, or Shipping Preventative MaintenanceTroubleshooting ScheduleON/OFF switch light remains on Filter Obstruction in nozzle assemblyWater in fuel tank Drain and flush fuel tank with clean Photocell and ignition control assemblyFuel Filter Service ProceduresUpper Shell Removal D20N ModelDisconnecting Ignitor Wires from Ignition Control Assembly IgnitorPump Pressure Adjustment AIR OUTPUT, AIR INTAKE, and Lint FiltersNozzle Assembly Fuel and AIR Line Replacement Proper RoutingProcedure if Rotor is Binding Pump RotorInstalling the New Assembly Ignition Control AssemblyRemove Old Assembly FANMotor and Pump Assembly Illustrated Parts BreakdownD20N Model Parts List Number Description QTYD30N Model KEY Part Number Description QTY D44N Model D44N Model Desired partWheels and Handles NTC-3CSpecifications AccessoriesWiring Diagram EC Conformity Declaration EC Conformity Declaration105843 Warranty Information

D30N, D44N, D20N specifications

Desa D30N, D20N, and D44N are advanced digital communication devices designed to enhance connectivity and streamline information transfer across various industries. These models exemplify modern technological innovations while addressing the growing demands for efficient communication in an increasingly interconnected world.

The Desa D30N is recognized for its impressive data transmission capabilities, featuring a robust multimedia communication interface that supports seamless integration across multiple platforms. This model employs cutting-edge encoding technologies that ensure high-quality audio and video streaming, making it an ideal choice for enterprises looking to facilitate clear and efficient virtual meetings. The D30N also incorporates advanced encryption protocols to safeguard sensitive information, ensuring secure end-to-end communication.

In contrast, the Desa D20N focuses on versatility and ease of use. This model is designed with a user-friendly interface that allows for quick deployment and intuitive operation. It supports numerous connectivity options, from traditional wired connections to modern wireless protocols, making it suitable for a variety of environments. The D20N is particularly well-suited for small to medium-sized businesses, providing essential communication tools without the need for extensive technological investment. Its compact design also allows it to fit conveniently into any workspace.

The Desa D44N stands out with its high-performance specifications tailored for heavy-duty applications. This model is engineered to deliver exceptional reliability and durability, making it suitable for demanding industrial environments. With enhanced signal processing capabilities, the D44N can handle multiple data streams simultaneously without compromising performance. It also incorporates long-range communication technologies, which enable it to maintain stable connections over considerable distances. This feature is essential for industries that require continuous monitoring and coordination across vast operational landscapes.

All three models—D30N, D20N, and D44N—boast compatibility with various operating systems and software applications, ensuring they can meet the unique needs of different users. Moreover, they are designed with energy efficiency in mind, promoting sustainable practices within organizations.

In summary, the Desa D30N, D20N, and D44N are exemplary digital communication solutions, each optimized for distinct operational requirements. With their unique technologies and characteristics, these devices play a pivotal role in fostering effective communication, enhancing productivity, and supporting ambitious business strategies in the digital age.
Top Page Image Contents