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Hubbell Electric Heater Company SE manual Section V - Servicing & Replacement Of Parts

Models: SE

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SECTION V - SERVICING & REPLACEMENT OF PARTS

WARNING / CAUTION

Before servicing or replacing any part make sure to turn the power supply switch to the OFF position.

SURFACE TEMPERATURE HIGH LIMIT CUT-OFF

1.Disconnect power from unit.

2.Remove access cover.

3.Disconnect the four (4) 14 gauge wires.

Control Wires

4. Remove the two (2) mounting screws.

Mounting Screws

5.Replace control and install new high limit switch by performing above steps in reverse order. See wiring diagram included with drawing for assistance.

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Hubbell Electric Heater Company SE Section V - Servicing & Replacement Of Parts, Surface Temperature High Limit Cut-Off

Contents

BASE MODEL “ SE ” OPERATING AND MAINTENANCE MANUAL FORCOMMERCIAL ELECTRIC WATER HEATER ELECTRIC HEATER COMPANYSTRATFORD, CT PHONE: 203 FAX: 203 HUBBELL ELECTRIC HEATER COMPANY P.O. BOXWARNING / 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-OffFused Low Voltage Transformer Dial Temperature and Pressure GaugeVacuum Relief Valve On/Off Switch Electro-MechanicalTimerIndividually Fused Elements Built-inCircuit BreakerWATER HEATER PLACEMENT PIPING INSTALLATIONWARNING / CAUTION SECTION II – INSTALLATIONFILLING THE HEATER ELECTRICAL INSTALLATIONFINAL CHECKS SECTION 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 13 b.Close valve on hot water outlet pipingSECTION IV – TROUBLESHOOTING SymptomProbable Cause Corrective Action / RemedyWater temperature below Faulty thermostatCheck thermostat adjustment settings at all timesSURFACE TEMPERATURE HIGH LIMIT CUT-OFF SECTION V - SERVICING & REPLACEMENT OF PARTSWARNING / 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 ELEMENT CHART SECTION VI – MISCELLANEOUS CHARTS AND FORMULASFORMULAS TORQUE VALUES