State Industries SW 37-670 instruction manual RENTON, WASHINGTON Technical Support

Models: SW 37-670

1 20

Page 20

A DIVISION OF A. O. SMITH CORPORATION

Technical Support: 800 527-1953

www.statewaterheaters.com

Image 20

Contents

A DIVISION OF A. O. SMITH CORPORATION ASMECOMMERCIAL ELECTRIC BOILERS MODELS SWSAFE INSTALLATION, USE AND SERVICE DANGERGENERAL SAFETY INFORMATION PRECAUTIONSHYDROGEN GAS FLAMMABLE GROUNDING INSTRUCTIONSINTRODUCTION TABLE OF CONTENTSPreparing for the Installation DIMENSION DATA SIZES AND DATA NW37 THRU NW150SIZES AND DATA NW220 THRU DIMENSION DATA cont’d BOILER SPECIFICATIONS STANDARDFEATURES AND COMPONENTS ACTUAL CONFIGURATION MAY VARYAPPROVALS MODEL AND RATING LOCATING THE BOILERFacts to Consider About the Location ASMEINSTALLATION Required AbilityGeneral Pressure Relief ValveCLOSED WATER SYSTEMS THERMAL EXPANSIONELECTRICAL DATA Branch CircuitCalculating Amperage Overcurrent Protection Boiler CircuitsWIRING DIAGRAMS STD. WIRING OPTIONAL OR FIELD WIRING AS REQ’DSTD. WIRING OPTIONAL OR FIELD WIRING AS REQ’D CONTACTOR COIL INDICATION LIGHTDIAGRAM THREE PHASE DELTA WITH STEP CONTROL DIAGRAM THREE PHASE WYE WITH STEP CONTROLOPERATION Filling the BoilerINITIAL START UP HIGH TEMPERATURE LIMITSTemperature Controls DRAININGWater Temperature Time to Produce 2nd & 3rdMAINTENANCE System CleaningPressure Relief Valve Test FLUSHINGTROUBLESHOOTING CHECKLIST SYSTEM WATER TESTNot enough or no hot water Water is too hot1.THE TANK RENTON, WASHINGTON Technical Support A DIVISION OF A. O. SMITH CORPORATION