Desa NTH150, NTH50, NTH100 Air Output, Air Intake, and Lint Filters, Pump Pressure Adjustment

Page 10

PORTABLE FORCED AIR HEATERS

SERVICE

PROCEDURES

Continued

Air Output, Air Intake, and Lint Filters

1.Remove upper shell (see page 8).

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 6).

6.Replace filter end cover.

7.Replace fan guard and upper shell.

IMPORTANT: Do not oil filters

Pump Pressure Adjustment

1.Remove pressure gauge plug from filter end cover.

2.Install accessory pressure gauge (part number HA1180).

3.Start heater (see Operation, page 5). Allow motor to reach full speed.

4.Adjust pressure. Turn relief valve to right to increase pressure. Turn relief valve to left to decrease pressure. See specifications below for correct pres- sure for each model.

5.Remove pressure gauge. Replace pres- sure gauge plug in filter end cover.

Air Intake Filter

Filter End

Fan Guard

Cover

Lint Filter

Air Output

Filter

Figure 16 - Air Output, Air Intake, and Lint Filters, 35/50/70,000 Btu/Hr Models

Air Intake Filter

Filter End

Fan Guard

Cover

 

Lint Filter

Air Output

Filter

Figure 17 - Air Output, Air Intake, and Lint Filters, 100/150,000 Btu/Hr Models

Pressure

 

 

Gauge

 

Pump

Plug

 

Relief

 

Pressure

Model

(PSI/Bar)

Valve

35,000 Btu/Hr

2.9/0.200

 

50,000 Btu/Hr

4.9/0.338

 

70,000 Btu/Hr

5.2/0.359

 

100,000 Btu/Hr

3.9/0.269

 

150,000 Btu/Hr

4.8/0.331

Figure 18 - Pressure Gauge Plug Removal

(35/50/70,000 Btu/Hr Models Shown)

Pressure

Gauge

Figure 19 - Adjusting Pump Pressure

10

104976

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Contents Portable Forced AIR Heaters Safety Information Portable Forced AIR HeatersUnpacking Product IdentificationFuels Ventilation AssemblyTools Needed To Start Heater Extension Cord Wire Size RequirementsTheory Operation To Stop HeaterSchedule Preventative MaintenanceStoring TRANSPORTING, or Shipping How Often How ToTroubleshooting Observed Fault Possible Cause RemedyUpper Shell Removal Service ProceduresFuel Filter Spark Plug 35,000 Btu/Hr ModelPump Pressure Adjustment Air Output, Air Intake, and Lint FiltersNozzle Removing Air and Fuel Line Hoses, 35,000 Btu/Hr ModelProcedure if Rotor is Binding Pump RotorWiring Diagrams SpecificationsFan Illustrated Parts Breakdown NTH35 35,000 BTU/HR ModelParts List KEY Part Number Description QTYMotor and Pump Assembly Burner Head AssemblyNTH50 50,000 BTU/HR Model 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 AIR Gauge KIT HA1180 AccessoriesWheels Handles 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.
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