Crown Boiler 24-04, 24-11, 24-10, 24-08, 24-12, 24-06, 24-05, 24-09, 24-03 Hydraulic Draw-Up of Sections

Page 18

Figure 12: Hydraulic Draw-Up of Sections

B. HYDROSTATIC TEST — After the boiler sections have been assembled, it is essential that the boiler be hydrostatically tested before the canopy, ﬂue cover plates, jacket, or piping is installed.

1.Tankless Heater Installation

If boiler is ordered with tankless heaters, install heaters with the gaskets provided. Table IV

on Page 37 gives the maximum number of heaters permissible per assembly and the heater ratings.

2.Plug all boiler tappings and ﬁll boiler completely with cold water.

CAUTION

DO NOT install gauge until after hydrostatic testing the boiler. Gauge failure may result.

3.All completed boilers must satisfactorily pass the prescribed hydrostatic test.

a.STEAM BOILERS: The assembled boiler must be subjected to a hydrostatic test of 45 psig to 55 psig.

b.HOT WATER BOILERS: The assembled boiler must be subjected to a hydrostatic test of not less than 1½ times the maximum allowable working pressure (MAWP).

WARNING

Failure to properly hydrotest all boilers at the correct pressure may result in section assembly failure in operation.

4.EXAMINE BOILER CAREFULLY, INSIDE AND OUTSIDE, to insure against leaks from cocked nipples or through concealed breakage caused in shipping and handling. This precaution is for your protection and will simplify handling of necessary replacements and adjustment claims.

5.After making certain that there are no leaks, drain boiler and remove plugs for boiler trim and other connections.

Figure 13: Boiler Section Assembly

18

Image 18

Contents Series Page Important Information Read Carefully Page Page Table of Contents Table of Contents Section I General Information Boiler RATINGS/DATA Section I General Information Locate the UnitBoiler Foundation Chimney or VentVents Faults & Suggestions Section II Cast Iron Block Assembly Assembly of Sections Manual DRAW- UPNipple 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 Section III Installation Instructions Canopy with Rear Flue Outlet Damper AssemblyBare Boiler Assembly Avoid Breathing Fiber Particulates and Dust Left Side Canopy Intermediate Bracket Mount Rear Observation Port Cover Refer to Figure Inspect ALL Boiler SealsSeries 24 Jacket Assembly Boiler Models 24-03 thru Burner Mounting Plate Refer to Figures 16 Mount Burner Adapter Plate to Burner Mounting PlatePurpose of Tappings Steam Boilers Steam Trim Steam Boilers Install Steam Trim This Is Intentionally Left Blank Purpose of Tappings Water Boilers Water Trim Water Boilers Install Water Trim Burner InstallationBoiler Piping Heating Applications 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 Return Temperature Control and Components CCW Open to SystemWater Boiler Pressure Relief Valve Hook-Up Typical Boiler Wiring with RTC Front Typical Boiler with RTC Return Sensor Rear Starting Burner Always Inspect Installation BeforeSection IV Operating Instructions Fill Heating System with WaterFlame Failure Boil MIN Delay Test Controls Check Operation of High Limit ControlBoiler and System Cleaning Steam Boiler Boiler and System Cleaning Water Boilers Frequent Water Addition Oxygen CorrosionSection V Service Instructions Clean the Boiler FluewaysMaintenance of LOW Water Cutoff Devices General Maintenance Considerations OperationSection VI Burner Specifications OIL BurnersSection 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 Appendix C Valve and Actuator Mounting Instructions ApplicationService Record PN 980417 S24 12/05