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Hubbell Electric Heater Company
CR manual Base Model “ Cr ”, Operating And Maintenance Manual For
Models:
CR
CR
1
1
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25
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Troubleshooting
Install
comparing with the chart included
Section V - Servicing & Replacement Of Parts
Maintenance
Audible Alarm
Temperature High Limit Switch
Disconnect power from unit
Special Customized Features
Flow Switch
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OPERATING AND MAINTENANCE MANUAL FOR
INSTANTANEOUS ELECTRIC
CIRCULATION HEATER
ELECTRIC HEATER COMPANY
BASE MODEL “ CR ”
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Contents
OPERATING AND MAINTENANCE MANUAL FOR
BASE MODEL “ CR ”
INSTANTANEOUS ELECTRIC CIRCULATION HEATER
ELECTRIC HEATER COMPANY
STRATFORD, CT PHONE 203 FAX
HUBBELL ELECTRIC HEATER COMPANY P.O. BOX
WARNING / CAUTION
SECTION
TABLE OF CONTENTS
TITLE
PAGE #
Page
GENERAL DESCRIPTION
VESSEL CONNECTIONS
CONSTRUCTION
SECTION I - GENERAL DESCRIPTION AND CONSTRUCTION
OUTER SHELL, INSULATION, AND SUPPORTS
FLOW SWITCH
HEATING ELEMENT
ELECTRICAL ENCLOSURE
CONTROL THERMOSTAT
MAGNETIC CONTACTOR
TEMPERATURE HIGH LIMIT SWITCH
FUSED LOW VOLTAGE TRANSFORMER
LOW WATER CUT-OFF
INDIVIDUALLY FUSED ELEMENTS
OPTIONS
Stainless Steel Jacket
Audible Alarm
On / Off Control Switch
Built-InCircuit Breaker
Building Management System BMS
Special Customized Features
Dial Temperature and Pressure Gauge
Silicon Control Rectifier
PIPING INSTALLATION
HEATER PLACEMENT
WARNING / CAUTION
SECTION II - INSTALLATION
FILLING THE HEATER
ELECTRICAL INSTALLATION
FINAL CHECKS
MAINTENANCE AND OPERATION
SECTION III - SCHEDULED MAINTENANCE AND OPERATION
FREEZING
QUARTERLY INSPECTION
Symptom
SECTION IV - TROUBLESHOOTING
Probable Cause
Corrective Action / Remedy
Faulty thermostat
Water temperature below
Check thermostat adjustment
settings at all times
WARNING / CAUTION
SECTION V - SERVICING & REPLACEMENT OF PARTS
MAGNETIC CONTACTOR
IMMERSION TEMPERATURE HIGH LIMIT CUT-OFF
IMMERSION THERMOSTAT
HEATING ELEMENT
1.Disconnect power from unit
RELIEF VALVE
NEMA ENCLOSURES
SECTION VI - MISCELLANEOUS CHARTS AND FORMULAS
ELECTRICAL DATA
FORMULAS
TORQUE VALUES