Desa REM115T, R115T, B115T Nozzle Assembly, Fuel and AIR Line Replacement Proper Routing

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OWNER’S MANUAL

SERVICE

PROCEDURES

Continued

NOZZLE ASSEMBLY

1.Remove upper shell (see page 7).

2.Remove fan (see page 7).

3.Remove fuel and air line hoses from nozzle assembly (see Figure 12).

4.Turn nozzle assembly 1/4 turn to left and pull toward motor to remove (see Figure 13).

5.Place plastic hex-body into vise and lightly tighten.

6.Carefully remove nozzle from the nozzle adapter using 5/8" socket wrench (see Figure 14).

7.Blow compressed air through face of nozzle. This will free any dirt in nozzle area.

8.Inspect nozzle seal for damage.

9.Replace nozzle into nozzle adapter un- til nozzle seats. Tighten 1/3 turn more using 5/8" socket wrench (40-45 inch- pounds). See Figure 14.

10.Attach nozzle assembly to burner strap.

11.Attach fuel and airline hoses to nozzle assembly. See Fuel and Air Line Re- placement and Proper Routing.

12.Replace fan (see page 7).

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

Combustion

 

Chamber

Nozzle/

 

Adapter

 

Assembly

Figure 13 - Removing Nozzle/Adapter Assembly

Nozzle Face

Nozzle

Seal

Nozzle

Nozzle

Adapter

Air Line

 

Fitting

Fuel Line

 

Fitting

Figure 14 - Nozzle and Nozzle Adapter

FUEL AND AIR LINE

REPLACEMENT AND

PROPER ROUTING

1.Remove upper shell (see page 7).

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

3.Remove side cover.

4.Inspect fuel and air line hoses for cracks and/or holes. If fuel line hose is dam- aged, disconnect from nozzle adapter (see Figure 12) and from fuel filter (see page 8). If air line hose is damaged, dis- connect from nozzle adapter (see Fig- ure 12) and from barb fitting on pump end cover (see Figure 15).

5.Install new air and/or fuel line. Attach one end of air line hose to barb fitting on pump end cover (see Figure 15) and the other end to nozzle adapter (see Fig- ure 12). Attach one end of fuel line hose to fuel filter (see page 8) and the other end to nozzle adapter (see Figure 12). Route air and fuel line approximately as shown in Figure 12.

Note: Hoses are not to be touching pho- tocell bracket.

6.Replace side cover.

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

Pump End Cover

Barb Fitting

Combustion

Chamber

Burner

Strap

Air Line

Hose

Photocell

Bracket

Nozzle/

Adapter

Assembly

Fuel Line

Hose

Air Hose

Figure 15 - Air Hose to Barb Fitting

Figure 12 - Removing Air and Fuel Line

Hoses

Continued

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Contents With BUILT-IN Thermostat Portable Forced AIR HeaterSafety Information UnpackingFueling Assembly Product IdentificationTools Needed Fuels Theory OperationVentilation Preventative Maintenance Storing TRANSPORTING, or ShippingSchedule Troubleshooting Pump Pressure Adjustment Service ProceduresUpper Shell Removal FANFuel Filter IgnitorReplace combustion chamber Fuel and AIR Line Replacement Proper Routing Nozzle AssemblyPump Rotor Ignition Control AssemblySpecifications Wiring Diagram Technical ServiceREM115T Illustrated Parts BreakdownKEY Part Number Description QTY Parts ListParts Available not Shown Wheels and Handle Parts ListAccessories Replacement PartsWarranty 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.