Desa B115T, REM115T, R115T owner manual Fuel Filter, Ignitor, Replace combustion chamber

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115,000 Btu/Hr H.S.I. Series

PORTABLE FORCED AIR HEATER

SERVICE

PROCEDURES

Continued

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

FUEL FILTER

1.Remove side cover screws using 5/16" nut-driver.

2.Remove side cover.

3.Pull upper fuel line off fuel filter neck.

4.Carefully pry bushing, fuel filter, and lower fuel line out of fuel tank.

5.Wash fuel filter with clean fuel and re- place in tank.

6.Attach upper fuel line to fuel filter neck.

7.Replace side cover.

Fuel Filter, Bushing,

and Lower Fuel Line

Upper Fuel Line

Side Cover

Figure 9 - Fuel Filter Removal

IGNITOR

1.Remove upper shell and fan guard (see page 7).

2.Remove fan (see page 7).

3.Remove 4 side cover screws with a 5/16" nut driver. Remove side cover (see Figure 9).

4.Disconnect ignitor wires (yellow) from ignition control assembly (see Figure 10). Pull the ignitor wires up through the hole in the lower shell.

5.Disconnect fuel line hose and air line hose. Remove photocell from photocell bracket (see Figure 10).

6.Remove combustion chamber. Stand combustion chamber on end with nozzle adapter bracket on top (see Figure 11).

7.Remove ignitor screw with a 1/4" nut driver. Carefully remove ignitor from nozzle adapter bracket.

CAUTION: Do not bend or strike ignitor element. Handle with care.

8.Carefully remove replacement ignitor from styrofoam packing.

9.Carefully guide ignitor into opening in nozzle adapter bracket. Do not strike ignitor element. Attach ignitor to nozzle adapter bracket with screw using a 1/4" nut driver (see Figure 11). Torque 8 to 15 in. lbs. Do not over torque.

10.Replace combustion chamber.

11.Route the ignitor wires back down through the hole in the lower shell. Connect wires to the ignition control assembly.

12.Replace side cover (see Figure 9).

13.Connect fuel line hose and air line hose to nozzle assembly. See Fuel and Air Line Replacement and Proper Routing, page 9.

14.Replace photocell in photocell bracket.

15.Replace fan (see page 7).

16.Replace fan guard and upper shell (see page 7).

Combustion

Nozzle

Chamber

Adapter

 

Bracket

 

Ignitor

Air

Ignitor

Line

Wires

Hose

 

Fuel

 

Line

 

Hose

 

Photocell

Ignition

Control

Bracket

Assembly

Photocell

 

Assembly

 

Side Cover

 

Figure 10 - Disconnecting Ignitor Wires from Ignition Control Assembly

Ignitor Screw/Washer

Assembly

Ignitor

Ignitor

Element

Nozzle

Photocell

Adapter

Bracket

Bracket

 

 

 

Nozzle Adapter

Combustion

Bracket Opening

Chamber

 

Figure 11 - Ignitor Replacement

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Contents Portable Forced AIR Heater With BUILT-IN ThermostatFueling Safety InformationUnpacking Tools Needed AssemblyProduct Identification Ventilation FuelsTheory Operation Schedule Preventative MaintenanceStoring TRANSPORTING, or Shipping Troubleshooting Service Procedures Pump Pressure AdjustmentUpper Shell Removal FANReplace combustion chamber Fuel FilterIgnitor Nozzle Assembly Fuel and AIR Line Replacement Proper RoutingIgnition Control Assembly Pump RotorWiring Diagram Technical Service SpecificationsIllustrated Parts Breakdown REM115TParts List KEY Part Number Description QTYWheels and Handle Parts List Parts Available not ShownReplacement Parts AccessoriesWarranty and Repair Service

B115T, R115T, REM115T specifications

Desa R115T, B115T, and REM115T are models of advanced heating and cooling systems designed to provide optimal performance and efficiency in climate control. These systems have been engineered to meet the diverse needs of both residential and commercial spaces, ensuring comfort regardless of external weather conditions.

The Desa R115T is known for its robustness and reliability. Featuring a powerful heating component, it employs a high-efficiency burner that maximizes heat output while minimizing fuel consumption. The unit integrates state-of-the-art digital controls, allowing for precise temperature settings and scheduling. Key features include a quick warm-up time, quiet operation, and a durable construction that ensures longevity, making it suitable for various applications.

On the other hand, the Desa B115T focuses on versatility and user-friendliness. This model features a dual fuel capability, allowing it to operate on both propane and natural gas, providing flexibility based on availability and preference. Its advanced thermostat offers smart capabilities, enabling remote access via smartphone applications. The B115T’s sleek design and compact size make it an ideal choice for urban environments where space is limited.

The REM115T is another impressive option, primarily distinguished by its eco-friendly design. This model utilizes advanced heat pump technology that extracts heat from the surrounding air, significantly reducing carbon emissions. It is equipped with a variable-speed compressor that adjusts to the heating and cooling demands, providing energy efficiency that can lead to substantial savings on utility bills. The REM115T also includes a built-in air purification system, improving indoor air quality by reducing allergens and pollutants.

All three models boast advanced insulation to enhance their energy efficiency ratings, contributing to lower operational costs. They are equipped with user-friendly interfaces, allowing for easy monitoring and adjustment of settings. Furthermore, their compatibility with smart home systems makes them a modern solution for environmentally conscious users seeking automated comfort.

Overall, Desa R115T, B115T, and REM115T are exemplary models of heating and cooling technology, each offering unique features and capabilities tailored to meet diverse needs while ensuring efficient and reliable climate control. With their cutting-edge technologies, these systems exemplify the future of home and commercial heating solutions.