Crown Boiler 24-09, 24-11, 24-10, 24-08, 24-12, 24-06, 24-05, 24-03, 24-04, 24-07 Table of Contents

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TABLE OF CONTENTS

SECTION I - GENERAL INFORMATION

 

Dimensional Information

8

Ratings/Data

9

Locating the Unit

10

Air Supply/Venting

11

SECTION II - CAST IRON BLOCK ASSEMBLY

 

Assembly of Sections, Manual Draw-up

13

Assembly of Sections, Hydraulic Draw-up

16

Hydrostatic Test

18

SECTION III - INSTALLATION INSTRUCTIONS

 

Knockdown

 

Canopy

19

Flue Cover Plates

22

Rear Observation Port Cover

23

Inspect All Boiler Seals

23

Jacket Assembly

23

Burner Mounting Plate / Burner Adapter Plate

25

Steam Trim

26

Water Trim

30

Burner Installation

32

Common Installation Requirements

 

Boiler Piping - Heating Applications

32

Boiler Piping - Domestic Hot Water (DHW) Applications

33

Tankless Heater Piping

41

Electric Wiring

43

Return Temperature Control (RTC) and Components

43

SECTION IV - OPERATING INSTRUCTIONS

 

Filling System

47

Adjusting Controls

47

Adjusting Burner

48

Return Temperature Control; Initial Set-Up and Operation

48

Diverting Valve Actuator

50

Boiler Operating Aquastat

50

Boiler High Limit Aquastat

50

Boiler Modulating Control

50

Test Controls

50

Initial Cleaning, Steam Boilers

51

Initial Cleaning, Water Boilers

52

Frequent Water Addition

53

Oxygen Corrosion

53

SECTION V - SERVICE INSTRUCTIONS

 

Cleaning Boiler Heating Surfaces

54

Maintenance of Low Water Cutoff Devices

55

Checking Burner & Controls

56

Lubrication

56

General Maintenance Considerations

56

Attention to Boiler While Not in Operation

56

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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 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