Hubbell Electric Heater Company CR manual Individually Fused Elements, LOW Water CUT-OFF, Options, Stainless Steel Jacket

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INDIVIDUALLY FUSED ELEMENTS

To prevent the possibility of damage to control circuits and other elements in case of electrical overloads, fuses may be supplied for each element. Two types of fuses may be used; a type NON for voltages less than 250-volt or type JJS for voltage less than 600-volt.

Type JJS

Type NON

LOW WATER CUT-OFF

Used as a safety device, the electronic low water cut-off is used to detect a low water situation and disengage the operating coils in the magnetic contactor(s). Once the condition is remedied, the low water cut-off switch is automatically reset.

Conductive Type Low Water Cut-Off Relay

OPTIONS

The following optional features may be included in your water heater. Reference included drawing specific to your heater for further details.

Stainless Steel Jacket

An optional stainless steel outer jacket may replace the standard galvaneel covering. This optional jacket may be painted.

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Contents Electric Heater Company Hubbell Electric Heater Company BOXSTRATFORD, CT Table of Contents Section Title Page Section I General Description and Construction Pressure VesselVessel Connections Outer SHELL, INSULATION, and Supports Flow SwitchHeating Element Electrical EnclosureControl Thermostat Temperature High Limit Switch Magnetic ContactorFused LOW Voltage Transformer LOW Water CUT-OFF Individually Fused ElementsOptions Stainless Steel JacketAudible Alarm On / Off Control SwitchBuilt-In Circuit Breaker Building Management System BMSDial Temperature and Pressure Gauge Special Customized FeaturesSilicon Control Rectifier Piping Installation Heater PlacementElectrical Installation Filling the HeaterFinal Checks Maintenance and Operation Section III Scheduled Maintenance and OperationFreezing Quarterly InspectionSymptom Probable Cause Corrective Action / Remedy Section IV TroubleshootingPage Section V Servicing & Replacement of Parts Immersion Temperature High Limit CUT-OFF Immersion Thermostat Heating Element Relief Valve Section VI Miscellaneous Charts and Formulas Nema Enclosures Electrical Data Formulas Torque Values

CR, CR specifications

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