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

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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