State Industries SW 37-670 instruction manual Commercial Electric Boilers

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Instruction Manual

COMMERCIAL ELECTRIC BOILERS

A DIVISION OF A. O. SMITH CORPORATION

RENTON, WASHINGTON www.statewaterheaters.com

MODELS SW 37-670

INSTALLATION - OPERATION - SERVICE - MAINTENANCE - LIMITED WARRANTY

ASME

Thank you for buying this energy efficient boiler from us. We appreciate your confidence in our products.

place these instructions adjacent to BOILER and notify owner to keep for future reference.

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316393-000

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Contents Commercial Electric Boilers Installation Operation Service Maintenance Limited WarrantySafe INSTALLATION, USE and Service Precautions Hydrogen GAS Flammable General Safety InformationGrounding Instructions Introduction Table of ContentsSizes and Data NW37 Thru NW150 Dimension DataSizes and Data NW220 Thru Boiler Specifications Standard Dimension Data cont’dActual Configuration MAY Vary Features and ComponentsModel and Rating Locating the Boiler ApprovalsFacts to Consider About the Location Required Ability InstallationGeneral Pressure Relief ValveThermal Expansion Closed Water SystemsBranch Circuit Electrical DataCalculating Amperage Overcurrent Protection Boiler CircuitsWiring Diagrams Diagram Three Phase WYE with Step Control Diagram Three Phase Delta with Step ControlTemperature Regulation High Temperature LimitsOperation Filling the BoilerDraining Temperature ControlsFlushing MaintenanceSediment Removal Water and Lime Scale RemovalSystem Water Test Troubleshooting ChecklistSW-37 Thru SW-670 Electric HOT Water Boiler Limited Warranty Division of A. O. Smith Corporation RENTON, Washington