SERVICE PROCEDURES

Continued

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.

Combustion

Chamber

Burner Strap

Photocell

Bracket

Air Line Hose

Nozzle/

Adapter

Assembly

Fuel Line

Hose

8.

Carefully remove replacement ignitor from

 

styrofoam packing.

9.

Carefully guide ignitor into opening in nozzle

Figure 20 - Removing Air and Fuel Line

Hoses, (115T Model Only)

 

adapter bracket. Do not strike ignitor element.

 

Attach ignitor to nozzle adapter bracket with

 

screw using a 1/4" nut driver (see Figure 18, page

 

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 (see Figure 17,

 

page 11).

12.

Replace side cover (see Figures 15 and 16,

 

page 11).

13.

Connect and route fuel line hose and air line

Combustion

Chamber

Burner Strap

Photocell

Bracket

Air Line

Hose

Nozzle/

Adapter

Assembly

Fuel Line

Hose

 

hose to nozzle adapter assembly. See Fuel and

 

Air Line Replacement and Proper Routing,

 

page 13.

14.

Replace photocell in photocell bracket. Route

 

wires as shown in Figure 19, 20, or 21.

15.

Replace fan (see Fan, page 9).

16.

Replace fan guard and upper shell (see Upper

 

Shell Removal, page 9).

Combustion

 

Chamber

Nozzle/

 

 

Adapter

Burner Strap

Assembly

Photocell

Bracket

Air Line

Fuel Line

Hose

Hose

Figure 19 - Removing Air and Fuel Line

Hoses, (40/55T/70T Models Only)

Figure 21 - Removing Air and Fuel Line

Hoses (165T Model Only)

NOZZLE ASSEMBLY

1.Remove upper shell (see Upper Shell Re- moval, page 9).

2.Remove fan (see Fan, page 9).

3.Remove fuel and air line hoses from nozzle assembly (see Figure 19, 20, or 21).

4.Turn nozzle assembly 1/4 turn to left and pull toward motor to remove (see Figure 22).

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

Burner Strap

Nozzle

Assembly

Figure 22 - Removing Nozzle Assembly, All Models

12

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Page 12
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Desa BC70T, BC40, BC165CT, BC115CT, BC55T, RC55T, RC70T, RC165CT, RC115CT owner manual Nozzle Assembly

RC70T, RC165CT, BC55T, BC70T, RC115CT specifications

Desa BC165CT, RC55T, BC55T, RC165CT, and BC70T are some of the advanced heating solutions designed to provide maximum comfort and efficiency in various environments. Each model comes with unique features and technologies aimed at meeting diverse heating demands while ensuring energy efficiency.

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