State Industries SW 37-670 instruction manual Safe INSTALLATION, USE and Service

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SAFE INSTALLATION, USE AND SERVICE

Your safety and the safety of others is extremely important in the installation, use, and servicing of this boiler.

Many safety-related messages and instructions have been provided in this manual and on your own boiler to warn you and others of a potential injury hazard. Read and obey all safety messages and instructions throughout this manual. It is very important that the meaning of each safety message is understood by you and others who install, use, or service this boiler.

This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.

 

 

 

 

 

DANGER indicates an imminently hazardous

 

 

 

DANGER

 

 

 

 

 

situation which, if not avoided, will result in

 

 

 

 

 

death or injury.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WARNING indicates a potentially hazardous

 

 

 

WARNING

 

 

 

 

 

situation which, if not avoided, could result in

 

 

 

 

 

death or injury.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CAUTION indicates a potentially hazardous

 

 

 

CAUTION

 

 

 

 

 

situation which, if not avoided, could result in

 

 

 

 

 

minor or moderate injury.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CAUTION used without the safety alert symbol

 

 

CAUTION

 

indicates a potentially hazardous situation

 

 

 

which, if not avoided, could result in property

 

 

 

 

 

damage.

 

 

 

 

 

 

All safety messages will generally tell you about the type of hazard, what can happen if you do not follow the safety message, and how to avoid the risk of injury.

The California Safe Drinking Water and Toxic Enforcement Act requires the Governor of California to publish a list of substances known to the State of California to cause cancer, birth defects, or other reproductive harm, and requires businesses to warn of potential exposure to such substances.

This product contains a chemical known to the State of California to cause cancer, birth defects, or other reproductive harm. This appliance can cause low level exposure to some of the substances listed.

IMPORTANT DEFINITIONS

Qualified Installer or Service Agency:

Installation and service of this boiler requires ability equivalent to that of a Qualified Agency (as defined by ANSI below) in the field involved. Installation skills such as plumbing and electrical supply are required in addition to electrical testing skills when performing service.

ANSI Z223.1 2006 Sec. 3.3.83:

“Qualified Agency” - “Any individual, firm, corporation or company that either in person or through a representative is engaged in and is responsible for (a) the installation, testing or replacement of gas piping or (b) the connection, installation, testing, repair or servicing of appliances and equipment; that is experienced in such work; that is familiar with all precautions required; and that has complied with all the requirements of the authority having jurisdiction.”

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Contents Installation Operation Service Maintenance Limited Warranty Commercial Electric BoilersSafe INSTALLATION, USE and Service Grounding Instructions General Safety InformationPrecautions Hydrogen GAS Flammable Table of Contents IntroductionDimension Data Sizes and Data NW37 Thru NW150Sizes and Data NW220 Thru Dimension Data cont’d Boiler Specifications StandardFeatures and Components Actual Configuration MAY VaryFacts to Consider About the Location ApprovalsModel and Rating Locating the Boiler General InstallationRequired Ability Pressure Relief ValveClosed Water Systems Thermal ExpansionCalculating Amperage Overcurrent Protection Electrical DataBranch Circuit Boiler CircuitsWiring Diagrams Diagram Three Phase Delta with Step Control Diagram Three Phase WYE with Step ControlOperation High Temperature LimitsTemperature Regulation Filling the BoilerTemperature Controls DrainingSediment Removal MaintenanceFlushing Water and Lime Scale RemovalTroubleshooting Checklist System Water TestSW-37 Thru SW-670 Electric HOT Water Boiler Limited Warranty Division of A. O. Smith Corporation RENTON, Washington