SERVICE PROCEDURES

Upper Shell Removal

1.Remove screws along each side of heater using 5/16" nut-driver. These screws attach upper and lower shells together.

2.Lift upper shell off.

3.Remove fan guard.

Fan

IMPORTANT: Remove fan from motor shaft before removing motor from heater. The weight of the motor resting on the fan could damage the fan pitch.

!WARNING

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

Upper

 

Upper

 

Shell

Fan

Shell

Fan

 

 

 

 

Guard

 

Guard

 

 

 

 

Figure 7 - Upper Shell Removal,

Figure 8 - Upper Shell Removal,

35/50/55/70,000 BTU/Hr Models

100/110/150,000 BTU/Hr Models

1.

Remove upper shell (see above).

2.

Use 1/8" allen wrench to loosen

 

set-screw which holds fan to motor

 

shaft.

3.

Slip fan off motor shaft.

4.

Clean fan using soft cloth mois-

 

tened with kerosene or solvent.

5.

Dry fan thoroughly.

6.

(35/50/55/70/100,000 BTU/Hr

 

Models) Replace fan on motor

 

shaft. Place fan hub flush with end

 

of motor shaft (see Figure 9).

 

(150,000 BTU/Hr Model) Replace

 

fan on motor shaft. Make sure set

 

screw is touching back of flat

 

surface on motor shaft (see Figure

 

10).

7.

Place setscrew on flat of shaft.

 

Tighten setscrew firmly (40-50

Fan

Motor

Flush

Motor

Shaft

Setscrew

Fan

Back of Flat

Surface on

Motor Shaft

Setscrew

Motor

Shaft

Motor

 

inch-pounds).

8. Replace fan guard and upper shell.

Air Output, Air Intake, and Lint Filters

1.Remove upper shell (see above).

2.Remove filter end cover screws using 5/16" nut-driver.

3.Remove filter end cover.

4.Replace air output and lint filters.

5.Wash or replace air intake filter (see Preventative Maintenance Schedule, page 8).

6.Replace filter end cover.

7.Replace fan guard and upper shell.

IMPORTANT: Do not oil filters.

10

Figure 9 - Fan Cross Section

Figure 10 - Fan Cross Section

35/50/55/70/100/110,000 BTU/Hr Models

150,000 BTU/Hr Model

Air Intake

 

Air Intake

 

Filter

 

Filter

 

Filter End

 

Filter End

Fan Guard

Cover

Fan

Cover

 

 

 

 

Guard

 

 

Lint Filter

Lint Filter

 

Air Output

Air Output

Filter

Filter

Figure 11 - Air Output, Air Intake,

Figure 12 - Air Output, Air Intake,

and Lint Filters, 35/50/55/70,000

and Lint Filters, 100/110/150,000

BTU/Hr Models

BTU/Hr Models

099176

Page 10
Image 10
Desa 110, 35, 000 BTU/Hr ARL, 000 50 Service Procedures, Upper Shell Removal, Fan, Air Output, Air Intake, and Lint Filters

100, 150, 000 70, 000, 000 55 specifications

Desa 000 55,000 BTU/Hr ARL,000,100,000 70 is a high-performance heating solution that caters to both residential and commercial needs. This powerful heating unit combines efficiency, reliability, and innovative technology to ensure superior warmth during cold weather. With an output of 55,000 BTU per hour, it effectively warms up large areas, making it an ideal choice for workshops, garages, and any expansive living spaces.

One of the main features of the Desa 000 is its ability to operate with variable fuel options. This flexibility allows users to choose between propane and natural gas, providing convenience and adaptability to various settings and preferences. The unit is designed with user-friendly controls, making it easy to set and adjust the desired temperature, which enhances its usability for individuals who may not be familiar with complex heating systems.

Incorporating advanced burner technologies, the Desa 000 boasts efficient combustion, translating to reduced fuel consumption and lower energy costs. Its innovative design minimizes heat loss, ensuring that warmth is distributed evenly throughout the space. Additionally, this unit is equipped with safety features such as an automatic shut-off valve that activates in the case of a malfunction or irregular operation, providing peace of mind for users.

Another remarkable characteristic of the Desa 000 is its portability. The unit is designed with mobility in mind, featuring durable wheels that allow for easy relocation while in use. This is particularly advantageous for those who require heating in multiple spaces or need a temporary heating solution for events or construction sites.

Furthermore, the Desa 000 is manufactured with high-quality materials, ensuring longevity and reliability. Its robust construction protects against wear and tear, making it suitable for heavy-duty applications. In terms of maintenance, the unit is designed for simplicity, allowing users to perform basic upkeep without the need for professional assistance.

With its combination of performance, efficiency, and user-friendliness, the Desa 000 55,000 BTU/Hr ARL,000,100,000 70 stands out as a top choice for efficient heating solutions. Whether for residential or commercial use, this heating unit delivers a dependable and effective heating experience, ensuring comfort in any environment.