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Hubbell Electric Heater Company MSE manual Magnetic Contactor, Disconnect power from unit

Models: MSE

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2.Disconnect line and load wires to contactor.

MAGNETIC CONTACTOR

1.Disconnect power from unit.

2.Disconnect line and load wires to contactor.

3.Disconnect two (2) 14 gauge control circuit wires.

Control Wires

Line Wires

Load Wires

4. Loosen two (2) holding screws and remove contactor.

Mounting Screws

(Bottom screw not shown)

5. Replace with new contactor using reverse procedure.

Page 24

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Hubbell Electric Heater Company MSE Magnetic Contactor, Disconnect power from unit, Control Wires Line Wires Load Wires

Contents

BASE MODEL “ MSE ” OPERATING AND MAINTENANCE MANUAL FORMARINE ELECTRIC WATER HEATER ELECTRIC HEATER COMPANYHUBBELL ELECTRIC HEATER COMPANY P.O. BOX STRATFORD, CT PHONE: 203 FAX: 203WARNING / CAUTION TABLE OF CONTENTS SECTIONTITLE PAGE #Page GENERAL DESCRIPTION CONSTRUCTIONSECTION I - GENERAL DESCRIPTION AND CONSTRUCTION TANK Standard Tank ConstructionTEMPERATURE HIGH LIMIT SWITCH CONTROL THERMOSTATMAGNETIC CONTACTOR OUTER SHELL AND INSULATIONOPTIONS Low Water Cut-OffDial Temperature and Pressure Gauge Fused Low Voltage TransformerVacuum Relief Valve On/Off Switch Electro-MechanicalTimerIndividually Fused Elements Built-inCircuit BreakerWATER HEATER PLACEMENT WARNING / CAUTIONSECURING OF HEATER SECTION II – INSTALLATIONMounting Dimensions PIPING INSTALLATION FILLING THE HEATERELECTRICAL INSTALLATION FINAL CHECKSSECTION III - SCHEDULED MAINTENANCE AND OPERATION MAINTENANCE AND OPERATIONFREEZING QUARTERLY INSPECTIONANNUAL INSPECTION 1.Flush tank as follows a.Shut off power supplyg.Turn power supply ON 15 b.Close valve on hot water outlet pipingSECTION IV – TROUBLESHOOTING SymptomProbable Cause Corrective Action / RemedyWater temperature below Faulty thermostatCheck thermostat adjustment settings at all timesSECTION V - SERVICING & REPLACEMENT OF PARTS SURFACE TEMPERATURE HIGH LIMIT CUT-OFFWARNING / CAUTION IMMERSION TEMPERATURE HIGH LIMIT CUT-OFF 1.Disconnect power from unit HEATING ELEMENTPage SURFACE MOUNTED THERMOSTAT 1.Disconnect power from unit2.Remove access cover and locate thermostat 3.Disconnect the two 2 14 gauge wiresIMMERSION THERMOSTAT 1.Disconnect power from unit 2.Disconnect line and load wires to contactor3.Disconnect two 2 14 gauge control circuit wires Control Wires Line Wires Load WiresRELIEF VALVE SECTION VI – MISCELLANEOUS CHARTS AND FORMULAS ELEMENT CHARTFORMULAS TORQUE VALUES SECTION VII – ABS TYPE APPROVAL PROGRAM Page Page