Crown Boiler 24-03 User Manual

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face outward).  Secure canopy with 5/16” flat 

washers, lock washers and brass nuts.   See  

Figure 17.

d.  Secure canopy right side bracket(s) with ¼ - 20 

x 5” lg. carriage bolts.  Insert head of carriage 

bolt between canopy body and casting.  Slide 

carriage bolt into slot provided between castings.  

Lower carriage bolt until threaded end will pass 

through hole in bracket.  Secure canopy with ¼” 

flat washers, lock washers and brass nuts.   See 

Figure 18.

13. Attach the 1/8” x 1” wide self-adhesive fiber gasket  

 to the surfaces of either the top flue outlet damper  

 assembly or top outlet canopy cover that mounts  

 against the canopy.  Gasket must be centered over                      

 all attachment holes.  Do not overlap corners, cut  

 butt joints.

14. Secure either the top flue outlet damper assembly or  

 top outlet canopy cover with #10 x 1/2” sheet metal  

 screws.

.  INSTALL FLUE COVER PLATES over cleanout 

openings on left side of boiler as shown in Figure 19.  

fiber product warning.
1.  Locate the cover plates, carriage bolts, nuts and 

washers in the boiler assembly carton(s).

2.  Remove insulation from two (2) 3/8” diameter holes 

in flue cover plates using a 3/8” drill bit. Rotate bit 

through insulation by hand.

3.  Attach the carriage bolts to the top and bottom of the 

flue openings with washers and hex nuts to provide 

a fixed stud.

4.  Install flue cover plates over studs with insulation 

against boiler and secure with washers and nuts.  

Tighten until insulation on cover plate provides a 

tight seal to casting.  If after tightening, a gap is still 

evident where the sections join, apply silastic along 

top and bottom edge of insulation board.

5.  Repeat steps 3 through 6 for mounting remaining 

flue cover plates.