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Hubbell Electric Heater Company
T manual Interlocked for Non-SimultaneousOperation
Models:
T
1
22
26
26
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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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L2
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L2
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4
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Interlocked for
Non-Simultaneous
Operation
Non-Interlocked
for Simultaneous Operation
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Contents
BASE MODEL “ T ”
ELECTRIC HEATER COMPANY
STRATFORD, CT PHONE 203 FAX
HUBBELL ELECTRIC HEATER COMPANY P.O. BOX
WARNING / CAUTION
TITLE
TABLE OF CONTENTS
SECTION
PAGE #
Page
SECTION I - GENERAL DESCRIPTION AND CONSTRUCTION
GENERAL DESCRIPTION
CONSTRUCTION
TANK
Back-upElectric Heating Element
CONTROL THERMOSTAT
OPTIONAL BACK-UPELECTRIC HEATING SYSTEM
Control Thermostat
Temperature High Limit Switch
WARNING / CAUTION
WATER HEATER PLACEMENT
INSTALL THE HEAT EXCHANGER COIL
SECTION II - INSTALLATION
PIPING INSTALLATION
Temperature and Pressure Relief Valve
Install into provided tapping
Manual Release Lever Temperature Probe
Outlet to floor drain
FILLING THE HEATER
ELECTRICAL INSTALLATION
FINAL CHECKS
FREEZING
SECTION III - SCHEDULED MAINTENANCE AND OPERATION
MAINTENANCE AND OPERATION
QUARTERLY INSPECTION
ANNUAL INSPECTION
Probable Cause
SECTION IV - TROUBLESHOOTING
Symptom
Corrective Action / Remedy
Probable Cause
BACK-UPELECTRCIAL HEATER SYSTEM if supplied
Symptom
Corrective Action / Remedy
RELIEF VALVE
SECTION V - SERVICING & REPLACEMENT OF PARTS
WARNING / CAUTION
1.Disconnect power from unit
HEATING COIL
2.Remove access cover
SURFACE TEMPERATURE HIGH LIMIT CUT-OFFif supplied
1.Disconnect power from unit
Control Wires
1.Disconnect power from unit
HEATING ELEMENT if supplied
L1 L2
Interlocked for Non-SimultaneousOperation
Non-Interlockedfor Simultaneous Operation
2.Remove access cover and locate thermostat
SURFACE MOUNTED THERMOSTAT if supplied
1.Disconnect power from unit
Control Wires
IMMERSION THERMOSTAT if supplied
SECTION VI - MISCELLANEOUS CHARTS AND FORMULAS
FORMULAS
T Model - Coil Curves