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Hubbell Electric Heater Company
V10, V20 manual
Models:
V20
V10
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27
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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
Special Customized Features
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Contents
ELECTRIC HEATER COMPANY
BASE MODEL “ V10 and V20 ”
OPERATING AND MAINTENANCE MANUAL FOR
ELECTRIC INDUSTRIAL PROCESS WATER HEATER
HUBBELL ELECTRIC HEATER COMPANY P.O. BOX
STRATFORD, CT PHONE 203 FAX
WARNING / CAUTION
PAGE #
TABLE OF CONTENTS
SECTION
TITLE
Page
SECTION I - GENERAL DESCRIPTION AND CONSTRUCTION
TANK CONNECTIONS
GENERAL DESCRIPTION
CONSTRUCTION
TEMPERATURE HIGH LIMIT SWITCH
CONTROL THERMOSTAT
MAGNETIC CONTACTOR
Fused Low Voltage Transformer
OUTER SHELL, INSULATION, AND SUPPORTS
OPTIONS
Low Water Cut-Off
Built-inCircuit Breaker
Dial Temperature and Pressure Gauge
Vacuum Relief Valve
Individually Fused Elements
Silicon Control Rectifier
Special Customized Features
Building Management System BMS
Pump Interlock Terminal Block
SECTION II - INSTALLATION
WATER HEATER PLACEMENT
PIPING INSTALLATION
WARNING / CAUTION
FILLING THE HEATER
ELECTRICAL INSTALLATION
FINAL CHECKS
7 - Control Thermostat
1 - Terminal Block 2 - Magnetic Contactor
3 - Heating Element
4 - Low Water Cut-Off,if supplied
4 - Low Water Cut-Off,if supplied
6 - High-TemperatureLimit Switch
1 - Terminal Block 2 - Magnetic Contactor
3 - Heating Element
Page
QUARTERLY INSPECTION
SECTION III - SCHEDULED MAINTENANCE AND OPERATION
MAINTENANCE AND OPERATION
FREEZING
b.Close valve on hot water outlet piping
ANNUAL INSPECTION
1.Flush tank as follows a.Shut off power supply
g.Turn power supply ON
Corrective Action / Remedy
SECTION IV - TROUBLESHOOTING
Symptom
Probable Cause
settings at all times
Water temperature below
Faulty thermostat
Check thermostat adjustment
SECTION V - SERVICING & REPLACEMENT OF PARTS
SURFACE TEMPERATURE HIGH LIMIT CUT-OFF
WARNING / CAUTION
IMMERSION TEMPERATURE HIGH LIMIT CUT-OFF
HEATING ELEMENT
1.Disconnect power from unit
IMMERSION THERMOSTAT
Control Wires Line Wires Load Wires
1.Disconnect power from unit
2.Disconnect line and load wires to contactor
3.Disconnect two 2 14 gauge control circuit wires
RELIEF VALVE
SECTION VI - MISCELLANEOUS CHARTS AND FORMULAS
ELEMENT CHART
FORMULAS
TORQUE VALUES
