Hubbell Electric Heater Company MSE manual Magnetic Contactor

Page 24

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.

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Image 24

Contents Electric Heater Company Hubbell Electric Heater Company BOXSTRATFORD, CT Table of Contents Section Title Page Section I General Description and Construction TankTank Connections Heating ElementTemperature 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-Mechanical TimerIndividually Fused Elements Built-in Circuit BreakerWater Heater Placement Securing of HeaterMounting Dimensions Piping Installation Filling the HeaterElectrical Installation Final ChecksSection III Scheduled Maintenance and Operation Maintenance and OperationFreezing Quarterly InspectionAnnual Inspection Section IV Troubleshooting Symptom Probable Cause Corrective Action / RemedyPage Section V Servicing & Replacement of Parts Surface Temperature High Limit CUT-OFFImmersion Temperature High Limit CUT-OFF Heating Element Page Surface Mounted Thermostat Immersion Thermostat Magnetic Contactor Relief Valve Section VI Miscellaneous Charts and Formulas Element Chart FormulasTorque Values Section VII ABS Type Approval Program Page Page