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Hubbell Electric Heater Company
T manual Section Vi - Miscellaneous Charts And Formulas
Models:
T
1
25
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Troubleshooting
Install
Section Vi - Miscellaneous Charts And Formulas
Section V - Servicing & Replacement Of Parts
Maintenance
Control Wires
Symptom
Replace thermostat using the reverse procedure
Temperature High Limit Switch
Disconnect power from unit
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SECTION VI –
MISCELLANEOUS CHARTS AND FORMULAS
FORMULAS
25
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Contents
ELECTRIC HEATER COMPANY
BASE MODEL “ T ”
STRATFORD, CT PHONE 203 FAX
HUBBELL ELECTRIC HEATER COMPANY P.O. BOX
WARNING / CAUTION
SECTION
TABLE OF CONTENTS
TITLE
PAGE #
Page
CONSTRUCTION
GENERAL DESCRIPTION
SECTION I - GENERAL DESCRIPTION AND CONSTRUCTION
TANK
OPTIONAL BACK-UPELECTRIC HEATING SYSTEM
CONTROL THERMOSTAT
Back-upElectric Heating Element
Control Thermostat
Temperature High Limit Switch
INSTALL THE HEAT EXCHANGER COIL
WATER HEATER PLACEMENT
WARNING / CAUTION
SECTION II - INSTALLATION
PIPING INSTALLATION
Manual Release Lever Temperature Probe
Install into provided tapping
Temperature and Pressure Relief Valve
Outlet to floor drain
FILLING THE HEATER
ELECTRICAL INSTALLATION
FINAL CHECKS
MAINTENANCE AND OPERATION
SECTION III - SCHEDULED MAINTENANCE AND OPERATION
FREEZING
QUARTERLY INSPECTION
ANNUAL INSPECTION
Symptom
SECTION IV - TROUBLESHOOTING
Probable Cause
Corrective Action / Remedy
Symptom
BACK-UPELECTRCIAL HEATER SYSTEM if supplied
Probable Cause
Corrective Action / Remedy
RELIEF VALVE
SECTION V - SERVICING & REPLACEMENT OF PARTS
WARNING / CAUTION
HEATING COIL
1.Disconnect power from unit
1.Disconnect power from unit
SURFACE TEMPERATURE HIGH LIMIT CUT-OFFif supplied
2.Remove access cover
Control Wires
1.Disconnect power from unit
HEATING ELEMENT if supplied
L1 L2
Non-Interlockedfor Simultaneous Operation
Interlocked for Non-SimultaneousOperation
1.Disconnect power from unit
SURFACE MOUNTED THERMOSTAT if supplied
2.Remove access cover and locate thermostat
Control Wires
IMMERSION THERMOSTAT if supplied
FORMULAS
SECTION VI - MISCELLANEOUS CHARTS AND FORMULAS
T Model - Coil Curves