Hubbell Electric Heater Company CR manual Table Of Contents, Section, Title, Page #

Models: CR CR

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	TABLE OF CONTENTS
SECTION	TITLE	PAGE #
I	GENERAL DESCRIPTION AND CONSTRUCTION	5
II	INSTALLATION	12
III	SCHEDULED MAINTENANCE AND OPERATION	14
IV	TROUBLESHOOTING	15
V	SERVICING & REPLACEMENT OF PARTS	17
VI	MISCELLANEOUS CHARTS AND FORMULAS	22

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Contents

ELECTRIC HEATER COMPANY BASE MODEL “ CR ”OPERATING AND MAINTENANCE MANUAL FOR INSTANTANEOUS ELECTRIC CIRCULATION HEATERHUBBELL ELECTRIC HEATER COMPANY P.O. BOX STRATFORD, CT PHONE 203 FAXWARNING / CAUTION PAGE # TABLE OF CONTENTSSECTION TITLEPage SECTION I - GENERAL DESCRIPTION AND CONSTRUCTION VESSEL CONNECTIONSGENERAL DESCRIPTION CONSTRUCTIONELECTRICAL ENCLOSURE FLOW SWITCHOUTER SHELL, INSULATION, AND SUPPORTS HEATING ELEMENTCONTROL THERMOSTAT TEMPERATURE HIGH LIMIT SWITCH MAGNETIC CONTACTORFUSED LOW VOLTAGE TRANSFORMER Stainless Steel Jacket INDIVIDUALLY FUSED ELEMENTSLOW WATER CUT-OFF OPTIONSBuilding Management System BMS On / Off Control SwitchAudible Alarm Built-InCircuit BreakerDial Temperature and Pressure Gauge Special Customized FeaturesSilicon Control Rectifier SECTION II - INSTALLATION HEATER PLACEMENTPIPING INSTALLATION WARNING / CAUTIONELECTRICAL INSTALLATION FILLING THE HEATERFINAL CHECKS QUARTERLY INSPECTION SECTION III - SCHEDULED MAINTENANCE AND OPERATIONMAINTENANCE AND OPERATION FREEZINGCorrective Action / Remedy SECTION IV - TROUBLESHOOTINGSymptom Probable Causesettings at all times Water temperature belowFaulty thermostat Check thermostat adjustmentSECTION V - SERVICING & REPLACEMENT OF PARTS WARNING / CAUTIONMAGNETIC CONTACTOR IMMERSION TEMPERATURE HIGH LIMIT CUT-OFF IMMERSION THERMOSTAT HEATING ELEMENT 1.Disconnect power from unitRELIEF VALVE NEMA ENCLOSURES SECTION VI - MISCELLANEOUS CHARTS AND FORMULASELECTRICAL DATA FORMULAS TORQUE VALUES