Manuals / Hubbell Electric Heater Company / Household Appliance / Electric Heater

Hubbell Electric Heater Company A manual Terminal Block 2 - Magnetic Contactor, Heating Element

Models: A

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Page 14

Image 14

1 – Terminal Block

2 – Magnetic Contactor

3 – Heating Element

4 – Low Water Cut-Off, if supplied

5 – Transformer, 480-Volt/240-Volt, installed on 480-Volt models only. 6 – High-Temperature Limit Switch

7 – Control Thermostat

8 – Illuminated On/Off Switch

Page 14

Image 14

Hubbell Electric Heater Company A Terminal Block 2 - Magnetic Contactor, Heating Element, Low Water Cut-Off,if supplied

Contents

ELECTRIC BOOSTER HEATER BASE MODEL “ A ”OPERATING AND MAINTENANCE MANUAL FOR ELECTRIC HEATER COMPANYWARNING / CAUTION HUBBELL ELECTRIC HEATER COMPANY P.O. BOXSTRATFORD, CT PHONE 203 FAX TITLE TABLE OF CONTENTSSECTION PAGE #Page SECTION I - GENERAL DESCRIPTION AND CONSTRUCTION GENERAL DESCRIPTIONCONSTRUCTION TANKMAGNETIC CONTACTOR TEMPERATURE HIGH LIMIT SWITCHCONTROL THERMOSTAT OUTER SHELL, INSULATION, AND SUPPORTSFUSED LOW VOLTAGE TRANSFORMER ON/OFF SWITCHDial Temperature and Pressure Gauge OPTIONSStainless Steel Legs Pressure Reducing ValveStainless Steel Outer Jacket WARNING / CAUTION WATER HEATER PLACEMENTPIPING INSTALLATION SECTION II - INSTALLATIONELECTRICAL INSTALLATION FILLING THE HEATERFINAL CHECKS Page Page 3 - Heating Element 8 - Illuminated On/Off Switch1 - Terminal Block 2 - Magnetic Contactor 4 - Low Water Cut-Off,if suppliedPage FREEZING SECTION III - SCHEDULED MAINTENANCE AND OPERATIONMAINTENANCE AND OPERATION QUARTERLY INSPECTIONg.Turn power supply ON ANNUAL INSPECTION1.Flush tank as follows a.Shut off power supply b.Close valve on hot water outlet pipingProbable Cause SECTION IV - TROUBLESHOOTINGSymptom Corrective Action / RemedyCheck thermostat adjustment Water temperature belowFaulty thermostat settings at all timesWARNING / CAUTION SECTION V - SERVICING & REPLACEMENT OF PARTSSURFACE TEMPERATURE HIGH LIMIT CUT-OFF 1.Disconnect power from unit HEATING ELEMENTIMMERSION THERMOSTAT 3.Disconnect two 2 14 gauge control circuit wires 1.Disconnect power from unit2.Disconnect line and load wires to contactor Control Wires Line Wires Load WiresRELIEF VALVE 3500 SECTION VI - MISCELLANEOUS CHARTS AND FORMULASELEMENT CHART 4000FORMULAS TORQUE VALUES