Manuals / Hubbell Electric Heater Company / Household Appliance / Water Heater

Hubbell Electric Heater Company V10, V20 manual Immersion Temperature High Limit Cut-Off

Models: V20 V10

1 27

Download 27 pages 61.03 Kb

Page 21

Image 21

IMMERSION TEMPERATURE HIGH LIMIT CUT-OFF

1.Disconnect power from unit.

2.Remove access cover.

3.Remove high limit cover screw and cover.

Cover

Cover Screw

Reset Switch

4. Disconnect the two (2) 14 gauge wires.

Wires

Capillary Tube

5. Remove capillary tube and bulb from thermowell

6. Remove two (2) mounting screws.

Mounting Screws

7.Remove control and install new high limit switch by performing above steps in reverse order. (Note: Be sure to place capillary tube into slot in base prior to installing cover.)

Page 21

Image 21

Hubbell Electric Heater Company V10, V20 manual Immersion Temperature High Limit Cut-Off

Contents

OPERATING AND MAINTENANCE MANUAL FOR BASE MODEL “ V10 and V20 ”ELECTRIC INDUSTRIAL PROCESS WATER HEATER ELECTRIC HEATER COMPANYHUBBELL ELECTRIC HEATER COMPANY P.O. BOX STRATFORD, CT PHONE 203 FAXWARNING / CAUTION SECTION TABLE OF CONTENTSTITLE PAGE #Page GENERAL DESCRIPTION TANK CONNECTIONSCONSTRUCTION SECTION I - GENERAL DESCRIPTION AND CONSTRUCTIONTEMPERATURE HIGH LIMIT SWITCH CONTROL THERMOSTATMAGNETIC CONTACTOR OPTIONS OUTER SHELL, INSULATION, AND SUPPORTSLow Water Cut-Off Fused Low Voltage TransformerVacuum Relief Valve Dial Temperature and Pressure GaugeIndividually Fused Elements Built-inCircuit BreakerBuilding Management System BMS Special Customized FeaturesPump Interlock Terminal Block Silicon Control RectifierPIPING INSTALLATION WATER HEATER PLACEMENTWARNING / CAUTION SECTION II - INSTALLATIONFILLING THE HEATER ELECTRICAL INSTALLATIONFINAL CHECKS 3 - Heating Element 1 - Terminal Block 2 - Magnetic Contactor4 - Low Water Cut-Off,if supplied 7 - Control Thermostat1 - Terminal Block 2 - Magnetic Contactor 6 - High-TemperatureLimit Switch3 - Heating Element 4 - Low Water Cut-Off,if suppliedPage MAINTENANCE AND OPERATION SECTION III - SCHEDULED MAINTENANCE AND OPERATIONFREEZING QUARTERLY INSPECTION1.Flush tank as follows a.Shut off power supply ANNUAL INSPECTIONg.Turn power supply ON b.Close valve on hot water outlet pipingSymptom SECTION IV - TROUBLESHOOTINGProbable Cause Corrective Action / RemedyFaulty thermostat Water temperature belowCheck thermostat adjustment settings at all timesSECTION V - SERVICING & REPLACEMENT OF PARTS SURFACE TEMPERATURE HIGH LIMIT CUT-OFFWARNING / CAUTION IMMERSION TEMPERATURE HIGH LIMIT CUT-OFF HEATING ELEMENT 1.Disconnect power from unitIMMERSION THERMOSTAT 2.Disconnect line and load wires to contactor 1.Disconnect power from unit3.Disconnect two 2 14 gauge control circuit wires Control Wires Line Wires Load WiresRELIEF VALVE SECTION VI - MISCELLANEOUS CHARTS AND FORMULAS ELEMENT CHARTFORMULAS TORQUE VALUES