Hubbell Electric Heater Company MSE manual Relief Valve

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RELIEF VALVE

1.Disconnect power from unit.

2.Shut off incoming water supply.

3.Lift test lever on relief valve to relieve pressure in tank.

4.Disconnect overflow piping.

5.Unscrew relief valve, remove assembly and replace with new one.

6.Connect overflow piping.

7.Turn on incoming water supply and check for leaks.

8.Turn safety switch to ON position.

Test Lever

Overflow Piping Outlet

Tank Connection

Temperature Probe

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Contents Electric Heater Company BOX Hubbell Electric Heater CompanySTRATFORD, CT Table of Contents Section Title Page Tank Section I General Description and ConstructionTank Connections Heating ElementControl Thermostat Temperature High Limit SwitchOuter Shell and Insulation Magnetic ContactorOptions Low Water Cut-OffFused Low Voltage Transformer Dial Temperature and Pressure GaugeVacuum Relief Valve Electro-Mechanical Timer On/Off SwitchIndividually Fused Elements Built-in Circuit BreakerSecuring of Heater Water Heater PlacementMounting Dimensions Filling the Heater Piping InstallationFinal Checks Electrical InstallationMaintenance and Operation Section III Scheduled Maintenance and OperationFreezing Quarterly InspectionAnnual Inspection Symptom Probable Cause Corrective Action / Remedy Section IV TroubleshootingPage Surface Temperature High Limit CUT-OFF Section V Servicing & Replacement of PartsImmersion Temperature High Limit CUT-OFF Heating Element Page Surface Mounted Thermostat Immersion Thermostat Magnetic Contactor Relief Valve Formulas Section VI Miscellaneous Charts and Formulas Element ChartTorque Values Section VII ABS Type Approval Program Page Page