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Hubbell Electric Heater Company
manual Base Model “ B ”, Operating And Maintenance Manual For
Models:
B
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Troubleshooting
Install
chart included in Section
Section V - Servicing & Replacement Of Parts
Maintenance
Disconnect line and load wires to contactor
Temperature High Limit Switch
Flush tank as follows a.Shut off power supply
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OPERATING AND MAINTENANCE MANUAL FOR
ELECTRIC BOOSTER HEATER
ELECTRIC HEATER COMPANY
BASE MODEL “ B ”
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Contents
OPERATING AND MAINTENANCE MANUAL FOR
BASE MODEL “ B ”
ELECTRIC BOOSTER 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
CONSTRUCTION
GENERAL DESCRIPTION
SECTION I - GENERAL DESCRIPTION AND CONSTRUCTION
TANK
CONTROL THERMOSTAT
TEMPERATURE HIGH LIMIT SWITCH
MAGNETIC CONTACTOR
OUTER SHELL , INSULATION, AND SUPPORTS
OPTIONS
Dial Temperature and Pressure Gauge
Low Water Cut-Off
Fused Low Voltage Transformer
Stainless Steel Outer Jacket
Pressure Reducing Valve
Suspension Straps
PIPING INSTALLATION
WATER HEATER PLACEMENT
WARNING / CAUTION
SECTION II - INSTALLATION
FILLING THE HEATER
ELECTRICAL INSTALLATION
FINAL CHECKS
3 - Heating Element
1 - Terminal Block 2 - Magnetic Contactor
4 - Low Water Cut-Off,if supplied
7 - Control Thermostat
1 - Terminal Block 2 - Magnetic Contactor
6 – High-TemperatureLimit Switch
3 - Heating Element
4 - Low Water Cut-Off,if supplied
Page
MAINTENANCE AND OPERATION
SECTION III - SCHEDULED MAINTENANCE AND OPERATION
FREEZING
QUARTERLY INSPECTION
1.Flush tank as follows a.Shut off power supply
ANNUAL INSPECTION
g.Turn power supply ON
b.Close valve on hot water outlet piping
Symptom
SECTION IV - TROUBLESHOOTING
Probable Cause
Corrective Action / Remedy
Faulty thermostat
Water temperature below
Check thermostat adjustment
settings at all times
SURFACE TEMPERATURE HIGH LIMIT CUT-OFF
SECTION V - SERVICING & REPLACEMENT OF PARTS
WARNING / CAUTION
HEATING ELEMENT
1.Disconnect power from unit
IMMERSION THERMOSTAT
2.Disconnect line and load wires to contactor
1.Disconnect power from unit
3.Disconnect two 2 14 gauge control circuit wires
Control Wires Line Wires Load Wires
RELIEF VALVE
ELEMENT CHART
SECTION VI - MISCELLANEOUS CHARTS AND FORMULAS
FORMULAS
TORQUE VALUES