Desa BTU/HR owner manual Fuel and AIR Line Replacement and Proper Routing, For 200 Model Only

Page 13

SERVICE PROCEDURES

Continued

(For 200 Model Only)

1.Remove combustion chamber and ignitor by following steps 1 through 7 under Ignitor, pages 11 and 12.

2.Carefully place the ignitor in a safe location.

3.Remove two nozzle adapter bracket screws (see Figure 27).

4.Place hex-shaped aluminum nozzle adapter into vise (do not overtighten).

5.Carefully remove nozzle from nozzle adapter using 5/8" socket wrench (see Figure 28).

6.Blow compressed air through face of nozzle. This will remove any debris in nozzle.

7.Inspect nozzle seal for damage.

8.Replace nozzle into nozzle adapter until nozzle seats. Tighten 80-110 inch-pounds.

9.Attach nozzle adapter bracket to combustion chamber with two screws removed in step 3.

10.Repeat steps 9 through 16 under Ignitor, page 11.

FUEL AND AIR LINE REPLACEMENT AND PROPER ROUTING

1.

Remove upper shell (see Upper Shell Re-

 

moval, page 9).

2.

Remove side cover screws using 5/16" nut

 

driver (see Figure 18 or 19, page 10).

3.

Remove side cover.

4.

Inspect fuel and air line hoses for cracks and/

 

or holes. If fuel line hose is damaged, discon-

 

nect from nozzle adapter (see Figure 23 or 24,

 

page 12, or Figure 27) and from fuel filter (see

 

Fuel Filter, page 10). If air line hose is dam-

 

aged, disconnect from nozzle adapter (see Fig-

 

ure 23 or 24, page 12, or Figure 27) and from

 

barb fitting on pump end cover (see Figure 29).

5.

Install new air and/or fuel line. Attach one end

 

of air line hose to barb fitting on pump end cover

 

(see Figure 29) and the other end to nozzle

 

adapter (see Figure 23 or 24, page 12, or Figure

 

27). Attach one end of fuel line hose to fuel fil-

 

ter (see Fuel Filter, page 10) and the other end

 

to nozzle adapter (see Figure 23 or 24, page 12,

 

or Figure 27).

 

Note: Route hoses as shown in see Figure 23

 

or 24, page 12, or Figure 27, according to

Combustion

Chamber

Nozzle

Adapter

Bracket

Photocell

Bracket

Nozzle

Adapter

Bracket

Screw

Nozzle/

Adapter

Assembly

 

model. Hoses are not to touch photocell

 

bracket.

6.

Replace side cover.

7.

Replace upper shell and fan guard (see Upper

 

Shell Removal, page 9).

Pump End Cover

Barb Fitting

Air Line

Hose

Fuel Line Hose

Figure 27 - Removing Air and Fuel Line

Hoses (200 Model Only)

Nozzle Face

Nozzle

 

 

 

 

Sleeve

 

Nozzle

 

Nozzle

 

Adapter

Nozzle

 

 

Adapter

 

 

Bracket

 

 

 

Air Line

 

 

Fitting

Fuel Line Fitting

 

 

Figure 28 - Nozzle and Nozzle Adapter

Barb

Fitting

Air Hose

40/50/55/60/70 110/115/155/165/200

ModelsModels

Figure 29 - Air Hose to Barb Fitting

113282-01C

www.desatech.com

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Contents Table of Contents Safety Information Product Identification UnpackingNever attach heater to external fuel tank Ventilation FuelsTheory of Operation Operation AssemblyFor 110/115/155/165/200 Models only To Start HeaterOperation with Portable Generator Wthout ON/OFF SwitchStoring TRANSPORTING, or Shipping To Restart HeaterTroubleshooting Preventative Maintenance ScheduleFault Condition Possible Cause Remedy How Often How ToDirty fuel filter Ment,Obstruction in nozzle Water in fuel tankUpper Shell Removal Service ProceduresAIR OUTPUT, AIR Intake and Lint Filters FANFuel Filter Pump Pressure AdjustmentReplace filter end cover Ignitor Carefully remove replacement ignitor from packingReplace combustion chamber Place plastic hex-body into vise and lightly tighten Nozzle AssemblyFor 40/50/55/60/70/110/115/155/165 Models Only For 200 Model Only Fuel and AIR Line Replacement and Proper RoutingPump Rotor Procedure if Rotor is BindingIgnition Control Assembly SpecificationsModel Size 110/115 155 165 200Ignition Control Assembly Wiring DiagramsWiring Diagrams Standard Model Illustrated Parts BreakdownR40, REM40, PK40, UK40, TK40, N40 Thermostat ModelsModels Parts ListStandard Model NTC-4C 50/55/60/70 ModelsStandard Models WLE-2 110/115/155/165 ModelsRM200BT, B200BT, PK200T, UK200T, TK200T, REM200BT, R200BT R200B, PK200, UK200, TK200See NOZZLE/BURNER Head Assembly for 200 Models Burner Head Assembly for 110/115/155/165 ModelsFHPF3-5C Motor and Pump Assembly for 40/50/55/60/70 ModelsFHPF3-5C Motor and Pump Assembly for 110/115/155/165 ModelsMotor and Pump Assembly for 200 Models Wheels and Handle Parts List Replacement PartsParts Under Warranty Parts not Under WarrantyAccessories Technical ServiceLimited Warranty Warranty and Repair Service

BTU/HR specifications

Desa BTU/HR is an innovative energy solution that emphasizes efficiency and sustainability in thermal energy generation. Designed with the modern consumer in mind, the Desa BTU/HR platform integrates advanced technologies to optimize heating systems for both residential and commercial applications.

At its core, Desa BTU/HR operates on the principle of maximizing thermal energy while minimizing waste. This is achieved through state-of-the-art heat exchangers and combustion technologies that ensure a higher yield of usable heat per unit of fuel consumed. By utilizing a variety of inputs, including biomass, natural gas, and renewable sources, Desa BTU/HR caters to a range of energy requirements, making it versatile for diverse environments.

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Another key characteristic of the Desa BTU/HR is its modular design. This means that the system can be scaled to meet changing energy requirements without major overhauls or replacements. Businesses can start with a smaller unit and expand as needed, which is not only cost-effective but also environmentally responsible.

Desa BTU/HR prioritizes sustainability in its operations. By integrating renewable energy sources and reducing greenhouse gas emissions, the platform adheres to international standards for environmentally friendly technologies. This focus on eco-friendly practices aligns with the growing global demand for sustainable energy solutions.

In conclusion, Desa BTU/HR sets a new standard in thermal energy generation through its efficient, intelligent, and sustainable design. With features that promote optimal energy use and a commitment to reducing environmental impact, the system serves as a robust solution for heat generation in today's energy-hungry world. As the landscape of energy production continues to evolve, Desa BTU/HR stands out as a forward-thinking choice for future energy needs.
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