Hubbell Electric Heater Company manual Section IV Troubleshooting

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SECTION IV – TROUBLESHOOTING

Symptom

Probable Cause

Corrective Action / Remedy

Gradual loss of heating

Tubes are fouled.

Clean tubes per Section III, annual

capacity.

 

scheduled maintenance.

 

Excess silt in bottom of tank.

Drain and flush tank per Section III ,

 

 

annual scheduled maintenance.

Overheating.

Ruptured tube(s) in heating

Remove / replace heating coil.

 

coil.

 

 

Thermostat needs adjusting.

Adjust thermostat

 

Circulator not operating.

Repair or replace per separate O&M.

Immediate loss of heating

Blockage in return line.

Clean blockage from return line.

capacity.

 

 

Excessive vibration.

High rate of flow beyond

Consult factory.

 

design conditions.

 

 

Under sized piping to the

Re-pipe lines to unit using proper

 

unit.

sized lines.

Water hammer.

Undersized return lines.

Re-pipe return line using proper sized

 

 

lines.

 

Insufficient slope on return

Increase slope on return lines.

 

lines causing backup.

 

*Red symptom indicates that equipment should be shut down immediately and cause of malfunction corrected before unit is re-started or serious damage may result.

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Contents Electric Heater Company STRATFORD, CT Hubbell Electric Heater CompanyBOX Table of Contents Section Title Page Tank Connections Section I General Description and ConstructionTank Outer Shell and InsulationBack-up Electric Heating Element Control ThermostatOptional BACK-UP Electric Heating System Control ThermostatTemperature High Limit Switch Water Heater Placement Install the Heat Exchanger CoilPiping Installation Page Final Checks Electrical InstallationFilling the Heater Freezing Section III Scheduled Maintenance and OperationMaintenance and Operation Quarterly InspectionAnnual Inspection Section IV Troubleshooting Symptom Probable Cause Corrective Action / RemedyPage Section V Servicing & Replacement of Parts Relief ValveHeating Coil Surface Temperature High Limit CUT-OFF if supplied Immersion Temperature High Limit CUT-OFF if supplied Heating Element if supplied Page Page Surface Mounted Thermostat if supplied Immersion Thermostat if supplied Section VI Miscellaneous Charts and Formulas Model Coil Curves

T specifications

Hubbell Electric Heater Company T is a renowned manufacturer in the heating industry, recognized for its innovative and high-quality electric heating solutions. Operating since the mid-20th century, the company has built a reputation for reliability and efficiency, catering to various markets, including industrial, commercial, and residential applications.

One of the main features of Hubbell Electric Heater Company T products is their robust construction. The heaters are designed to withstand extreme conditions, making them suitable for use in demanding environments. This durability is complemented by a wide range of wattage options, allowing users to select the appropriate heating capacity for their specific needs.

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In summary, Hubbell Electric Heater Company T stands out in the market with its durable, efficient, and versatile electric heating solutions. By leveraging advanced technologies and prioritizing user safety, the company continues to innovate and meet the evolving needs of its diverse clientele. Whether for industrial or residential use, Hubbell electric heaters provide reliable warmth and comfort, making them a trusted choice in the heating industry.
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