Crown Boiler 24-05, 24-11, 24-10, 24-08, 24-12, 24-06, 24-09, 24-03, 24-04 Series 24 Section Arrangement

BOILER SECTION IDENTIFICATION CODE

F = FRONT SECTION WITH 4” SUPPLY TAPPING	C = CENTER SECTION
B = BACK SECTION WITH 4” SUPPLY TAPPING	CX = CENTER SECTION WITH 4” TOP SUPPLY TAPPING

NOTES: FOR BOILERS LESS TANKLESS HEATER, REPLACE THE “CT” SECTIONS WITH “C” SECTIONS.

Figure 8: Series 24 Section Arrangement

i.From the “Section Arrangement” chart, select the next section according to the “Identification Code” at the top of the chart. See Figure 8. Use a wire brush to clean the groove in the face of

NOTICE

The sections must be assembled according to the arrangement shown to ensure proper operation, proper assembly of canopy, jacket and alignment of piping and tankless heaters with jacket knockouts. Start with the back section and work towards the front.

the next section. Then, using a cartridge of RTV 6500 or RTV 736 sealant in a caulking gun, fill the groove in this section with silastic sealant.

Touch-up any missed spots before draw-up. Touch-up after draw-up has no value.

j.Clean and lubricate nipple ports on next section to be assembled and place on nipples previously installed in rear section. To facilitate assembly, it is advisable to enter the upper nipple first in its port. Then enter the lower nipples in their respective ports. If necessary, place a lifting bar

(crowbar) under the center of the section and lift the nipple port onto the upper nipple.

k.Drive section in place with a heavy block of wood, striking blows as squarely as possible over nipple port.

l.The large draw-up rod lugs with dual holes are cast in the four (4) corners of each casting. Starting with the upper holes, install four

(4)5/8” x 9¾” long draw-up rods along with washers and nuts (see Figure 9).

CAUTION

To avoid damage to the draw-up rod threads while drawing up sections, apply oil or other lubricant to tie rod threads while assembling sections to prevent stripping of threads on rod and to make assembling easier.

m. DRAW UP SECTION SLOWLY AND EVENLY using an alternating pattern starting with the upper right lug and proceeding to the lower left , lower right and finishing with upper left lug.

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