Crown Boiler 24-12 Mount Rear Observation Port Cover Refer to Figure, Inspect ALL Boiler Seals

C.MOUNT REAR OBSERVATION PORT COVER Refer to Figure 16.

1.With the silastic sealant, secure the 3/16” diameter rope gasket into the groove around the perimeter of the rear observation port cover.

2.Mount the rear observation port cover onto the rear section (with the word “Top” in the upright position) using the four (4) 5/16” - 18 x 1” lg. cap screws and flat washers provided.

D. INSPECT ALL BOILER SEALS

1.A visual inspection should be made of all sealed joints and repairs made as necessary. Darken the boiler room and place a light source in the combustion space and canopy to observe any gaps or open seals. Poor seals must be repaired and rechecked before continuing.

E. JACKET ASSEMBLY - See Figure 22 for Jacket Assembly Details.

1.Open jacket carton and jacket hardware package. Unless otherwise stated, all jacket components are fastened with #8 x ½” hex head sheet metal screws. Do not drive sheet metal screws tight until jacket assembly is complete.

2.On boilers with rear flue outlet damper assembly, remove square knockout from jacket rear panel. To remove knockout, use a single hacksaw blade with handle or aviation snips to cut metal tabs between slotted holes.

3.Attach jacket front panel to front section and jacket rear panel to back section using the eight (8) #10 x ½” self tapping screws. Tighten these screws securely.

4.Attach jacket lower tie bar panel (approximately

5-5/8” high) to the bottom of the jacket front and rear panels using four (4) sheet metal screws. Repeat for opposite side.

5.Attach jacket upper tie bar panel (approximately

4-1/8” high) to the top of the jacket front and rear panels using four (4) sheet metal screws. Repeat for opposite side.

JACKET LEFT SIDE PANEL USAGE CHART

BOILER			MULTIPLE LEFT SIDE PANELS*
MODEL		PANEL 1	PANEL 2	PANEL 3	PANEL 4	PANEL 5
24-03		L10	L5	-	-	-
24-04		L10	L11	-	-	-
24-05	REAR OF BOILER	L10	L17	-	-	-	FRONT OF BOILER
24-06		L10	L18	L5	-	-
24-07		L10	L18	L11	-	-
24-08		L10	L18	L17	-	-
24-09		L10	L18	L18	L5	-
24-10		L10	L18	L18	L11	-
24-11		L10	L18	L18	L17	-
24-12		L10	L18	L18	L18	L5

6.Jacket Top Panel Attachment

a.On boilers with top flue outlet damper assembly, remove octagon shaped knockout. To remove knockout, use a single hacksaw blade with handle or aviation snips to cut metal tabs between slotted holes.

b.Remove knockout(s) for necessary supply piping in a similar manner.

c.Attach jacket top panel to the front panel, rear panel and upper tie bar panels with sheet metal screws.

7.Install Jacket side Panels

a.Snap black thumb hole bushings into all side panel holes.

b.Use the left side panel and right side panel usage charts to determine correct positions of side panels. The three (3) digit panel identification numbers shown in the charts are also stamped along the bottom edge of each panel. Refer to Figures 20 and 21.

c.Rearward and Intermediate panels have reverse bend flanges on one side of panel. These panels must be installed prior to forward panels.

NOTICE

To install multiple side panels, start at the rear of boiler and work forward. To remove panels, reverse order of assembly.

d.If boiler is equipped with tankless heaters they should be installed at this time if they were not installed for hydrostatic test outlined on Page 18.

e.Install right side panels into position by inserting top of panel into ‘U’ shaped channel, pushing bottom of panel in toward boiler, and sliding panel down into ‘J’ shaped channel. Repeat procedure until all right side panels are in place.

f.Remove the knockouts necessary for tankless heater operation on left side panels.

g.Install left side panels, using the same procedure used to install the right side panels.

RIGHT SIDE PANEL USAGE CHART

BOILER		SINGLE / MULTIPLE RIGHT SIDE PANELS*
MODEL		PANEL 3	PANEL 2	PANEL 1
24-03		-	-	R15 (SINGLE)
24-04		-	-	R21 (SINGLE)
24-05	OFFRONTBOILER	-	-	R27 (SINGLE)	OFREARBOILER
24-10		-	R27	R30
24-06		-	-	R33 (SINGLE)
24-07		-	R15	R24
24-08		-	R21	R24
24-09		-	R27	R24
24-11		-	R33	R30
24-12		R21	R24	R24

*NOTE: TO INSTALL MULTIPLE SIDE PANELS, START AT THE REAR AND WORK FORWARD. TO REMOVE PANELS, REVERSE ORDER OF ASSEMBLY.

Figure 20: Left Side Panel Usage Chart Figure 21: Right Side Panel Usage Chart

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