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Hubbell Electric Heater Company
manual BASE MODEL “ V10 and V20 ”, Electric Heater Company
Models:
V20
V10
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Troubleshooting
Install
chart included in Section
Maintenance
g.Turn power supply ON
Special Customized Features
Temperature High Limit Switch
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OPERATING AND MAINTENANCE MANUAL FOR
ELECTRIC INDUSTRIAL PROCESS
WATER HEATER
ELECTRIC HEATER COMPANY
BASE MODEL “ V10 and V20 ”
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Contents
OPERATING AND MAINTENANCE MANUAL FOR
BASE MODEL “ V10 and V20 ”
ELECTRIC INDUSTRIAL PROCESS WATER 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
TANK CONNECTIONS
CONSTRUCTION
SECTION I - GENERAL DESCRIPTION AND CONSTRUCTION
CONTROL THERMOSTAT
TEMPERATURE HIGH LIMIT SWITCH
MAGNETIC CONTACTOR
OPTIONS
OUTER SHELL, INSULATION, AND SUPPORTS
Low Water Cut-Off
Fused Low Voltage Transformer
Vacuum Relief Valve
Dial Temperature and Pressure Gauge
Individually Fused Elements
Built-inCircuit Breaker
Building Management System BMS
Special Customized Features
Pump Interlock Terminal Block
Silicon Control Rectifier
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
Check thermostat adjustment
Faulty thermostat
settings at all times
phases
SURFACE TEMPERATURE HIGH LIMIT CUT-OFF
SECTION V - SERVICING & REPLACEMENT OF PARTS
WARNING / CAUTION
IMMERSION TEMPERATURE HIGH LIMIT CUT-OFF
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