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

Hubbell Electric Heater Company SE manual Fused Low Voltage Transformer, Vacuum Relief Valve

Models: SE

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Fused Low Voltage Transformer

A fused low voltage transformer may be supplied. This option is used to step down higher voltages to 120-volt for the control circuit.

Dial Temperature and Pressure Gauge

A combination temperature (70° - 250° F) and pressure (0 – 200 psi) gauge with 2½-inch dial may be supplied for in-line installation (shipped loose) or factory installed in the tank.

Vacuum Relief Valve

A vacuum relief valve may be provided with the unit to reduce the risk of back siphonage and back pressure of the system. The valve will be shipped loose for in-line installation. Instructions for installation are provided with the valve.

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Hubbell Electric Heater Company SE Fused Low Voltage Transformer, Dial Temperature and Pressure Gauge, Vacuum Relief Valve

Contents

BASE MODEL “ SE ” OPERATING AND MAINTENANCE MANUAL FORCOMMERCIAL ELECTRIC WATER HEATER ELECTRIC HEATER COMPANYWARNING / CAUTION HUBBELL ELECTRIC HEATER COMPANY P.O. BOXSTRATFORD, CT PHONE: 203 FAX: 203 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-OffVacuum Relief Valve Dial Temperature and Pressure GaugeFused Low Voltage Transformer On/Off Switch Electro-MechanicalTimerIndividually Fused Elements Built-inCircuit BreakerWATER HEATER PLACEMENT PIPING INSTALLATIONWARNING / CAUTION SECTION II – INSTALLATIONFINAL CHECKS ELECTRICAL INSTALLATIONFILLING THE HEATER 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 timesWARNING / CAUTION SECTION V - SERVICING & REPLACEMENT OF PARTSSURFACE TEMPERATURE HIGH LIMIT CUT-OFF 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 FORMULAS SECTION VI – MISCELLANEOUS CHARTS AND FORMULASELEMENT CHART TORQUE VALUES