Crown Boiler 24-03, 24-11, 24-10, 24-08 Center Section Channel Block Position Partial Block Draw-Up

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tapped holes in the front section. Be sure to screw draw-up rods into couplings far enough to prevent stripping threads.

d.Place a 3” x 12” lg. steel channel on each end of the upper draw-up rod and a 3” x 8½” lg. steel channel on each end of the lower draw-up rods.

Refer to Figures 10 and 11 for proper placement of channel block during assembly procedures. Install nuts and washers on one end of the draw- up rods and the hydraulic rams, washers and draw-up rod clamps on the other. See Figure 13.

CAUTION

Do not apply pressure directly on threaded tappings on front and rear sections with draw-up channels during assembly procedures.

Rods should be approximately centered in openings so that rods and couplings (when used) do not drag on pipe thread in end section tappings.

WARNING

READ THE STATEMENTS BELOW BEFORE

ATTEMPTING TO USE HYDRAULIC EQUIPMENT.

*Release pressure in ram pumps before attempting to remove clamps.

*Do not stand in line with draw-up rods at either end when hydraulic pressure is being applied. As a safety measure, ends of draw-up rods should be covered while sections are being drawn in case rods should snap while under tension.

*Do not operate ram against draw-up coupling.

*Do not operate pump after ram has reached stroke limit.

e.Draw-Up Sections

Use hydraulic rams to draw up sections by applying pressure alternately on the draw-up rods. When rams reach stroke limit, release pressure in ram pumps and then move clamps to new position.

f.Continue to draw-up until all sections make contact at the ground joints.

g.After all sections have been drawn up, but before removing the hydraulic rams and draw-up rods, the 9¾” long tie rods must be installed.

The large draw-up rod lugs with dual holes are cast in the four (4) corners of each casting. Starting with the upper holes in the back section, install four (4) 5/8” x 9¾” long tie rods along with washers and nuts. Continue installing the tie rods alternating from the upper to lower set of holes in draw-up lugs until front section is secured. Be certain that all sections are drawn up IRON TO IRON at all three nipple ports.

h.Excess length of draw-up rods must not extend beyond front and rear section. To ensure proper fit of jacket, adjust accordingly. Tighten all tie rod nuts until finger tight. Then tighten them an additional ½ turn with a wrench to prevent section damage to thermal expansion.

Figure 10: Front and Rear Section Channel Block Positions (Hydraulic Draw-up)

Figure 11: Center Section Channel Block Position

(Partial Block Draw-Up)

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Contents Series Page Important Information Read Carefully Page Page Table of Contents Table of Contents Section I General Information Boiler RATINGS/DATA Locate the Unit Section I General InformationChimney or Vent Boiler FoundationVents Faults & Suggestions Assembly of Sections Manual DRAW- UP Section II Cast Iron Block AssemblyNipple Gauge Series 24 Section Arrangement Draw-Up Rods Alternating Pattern Manual Draw-up Center Section Channel Block Position Partial Block Draw-Up Hydraulic Draw-Up of Sections Canopy with Rear Flue Outlet Damper Assembly Section III Installation InstructionsBare Boiler Assembly Avoid Breathing Fiber Particulates and Dust Left Side Canopy Intermediate Bracket Inspect ALL Boiler Seals Mount Rear Observation Port Cover Refer to FigureSeries 24 Jacket Assembly Boiler Models 24-03 thru Mount Burner Adapter Plate to Burner Mounting Plate Burner Mounting Plate Refer to Figures 16Purpose of Tappings Steam Boilers Steam Trim Steam Boilers Install Steam Trim This Is Intentionally Left Blank Purpose of Tappings Water Boilers Water Trim Boiler Piping Heating Applications Water Boilers Install Water TrimBurner Installation Page Parallel Piping Conversion Recommendation 1 Use when Recommendation 2 Use when Recommendation 3 Use when Page Page Page BMounting Elevations M&M 150, 64 Float Low Water Cut-offs Schematic Tankless Heater Piping 24-08 24-09 CCW Open to System Return Temperature Control and ComponentsWater Boiler Pressure Relief Valve Hook-Up Typical Boiler Wiring with RTC Front Typical Boiler with RTC Return Sensor Rear Section IV Operating Instructions Always Inspect Installation BeforeStarting Burner Fill Heating System with WaterFlame Failure Boil MIN Delay Check Operation of High Limit Control Test ControlsBoiler and System Cleaning Steam Boiler Boiler and System Cleaning Water Boilers Oxygen Corrosion Frequent Water AdditionClean the Boiler Flueways Section V Service InstructionsMaintenance of LOW Water Cutoff Devices Operation General Maintenance ConsiderationsOIL Burners Section VI Burner SpecificationsSection VII Repair Parts & Carton Contents Series 24 Master Parts List Section VII Repair Parts Jacket Carton Bare Boiler Assembly Section Joiner Carton Assy Rear Target Wall Carton Standard Steam Trim Carton Assy RTC Carton with Outdoor Reset Tankless Coil Components Boiler Water Section Viii Appendix Page Mechanical Page Mechanical Electrical Page Page Page Page Page Page Page Page Series 24 Boiler Circulator Selection Taco 20F Differential Boiler Recirculation Grundfos Circulating Pump Way Boiler Recirculation Bell and Gossett Circulating Pump Way Boiler Recirculation Armstrong Circulating Pump Way Application Appendix C Valve and Actuator Mounting InstructionsService Record PN 980417 S24 12/05
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