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Hubbell Electric Heater Company CR manual Formulas

Models: CR CR

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FORMULAS

FORMULAS

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Hubbell CR manual Formulas

Contents

BASE MODEL “ CR ” OPERATING AND MAINTENANCE MANUAL FORINSTANTANEOUS ELECTRIC CIRCULATION HEATER ELECTRIC HEATER COMPANYHUBBELL ELECTRIC HEATER COMPANY P.O. BOX STRATFORD, CT PHONE 203 FAXWARNING / CAUTION TABLE OF CONTENTS SECTIONTITLE PAGE #Page VESSEL CONNECTIONS GENERAL DESCRIPTIONCONSTRUCTION SECTION I - GENERAL DESCRIPTION AND CONSTRUCTIONFLOW SWITCH OUTER SHELL, INSULATION, AND SUPPORTSHEATING ELEMENT ELECTRICAL ENCLOSURECONTROL THERMOSTAT TEMPERATURE HIGH LIMIT SWITCH MAGNETIC CONTACTORFUSED LOW VOLTAGE TRANSFORMER INDIVIDUALLY FUSED ELEMENTS LOW WATER CUT-OFFOPTIONS Stainless Steel JacketOn / Off Control Switch Audible AlarmBuilt-InCircuit Breaker Building Management System BMSDial Temperature and Pressure Gauge Special Customized FeaturesSilicon Control Rectifier HEATER PLACEMENT PIPING INSTALLATIONWARNING / CAUTION SECTION II - INSTALLATIONELECTRICAL INSTALLATION FILLING THE HEATERFINAL CHECKS SECTION III - SCHEDULED MAINTENANCE AND OPERATION MAINTENANCE AND OPERATIONFREEZING QUARTERLY INSPECTIONSECTION IV - TROUBLESHOOTING SymptomProbable Cause Corrective Action / RemedyWater temperature below Faulty thermostatCheck thermostat adjustment settings at all timesSECTION V - SERVICING & REPLACEMENT OF PARTS WARNING / CAUTIONMAGNETIC CONTACTOR IMMERSION TEMPERATURE HIGH LIMIT CUT-OFF IMMERSION THERMOSTAT 1.Disconnect power from unit HEATING ELEMENTRELIEF VALVE SECTION VI - MISCELLANEOUS CHARTS AND FORMULAS NEMA ENCLOSURESELECTRICAL DATA FORMULAS TORQUE VALUES