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Hubbell Electric Heater Company EMV manual

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Table of contents for the manual

  • Page 1

    OPERATING AND MAINTENANCE MANUAL FOR PACKAGED ELECTRIC TEPID WATER HEATING SYSTEM ELECTRIC HEATER COMPANY BASE MODEL “ EMV ”[...]

  • Page 2

    2 HUBBELL ELECTRIC HEATER COMPANY P.O. BOX 288 STRATFORD, CT 06615 PHONE: (203) 378-2659 FAX: (203) 378-3593 INTERNET: http://www.hubbellheaters.com/ -- IMPORTANT -- Always reference the f ull model num ber and serial number when calling the factory. WARNING / CAUTION 1. Tank is to be com pletely filled with water and all air is to be v ented befor[...]

  • Page 3

    3 TABLE OF C ONTENTS SECTION TITLE PAG E # I GENERAL DESCRI PTI ON AND CONSTRUCTION 5 I I I NSTAL L ATI ON 7 III SC H E D U LE D M A IN T E NANCE AND OPERATION 9 IV TR OUBLESHOOTI NG 12 V S E R V I C I N G & R E P L A C E M E N T O F P A R T S 1 3 V I E L E M E N T C H A R T S 2 2[...]

  • Page 4

    4[...]

  • Page 5

    5 SECTION I - GENERAL DESCRIPTION AND CONST RUCTION GENERAL DESCRIPTION This manual describes a pack aged electric water heater system designed to meet the requirem ents of ANSI Z358.1- 1998 for tepid water delivery to an em ergency drench sy stem. T he com plete assembly consists of the storage tank, im mersion electric heating elem ent(s), thermo[...]

  • Page 6

    6 TEMPERATURE H IGH LIM IT SWITCH As a safety dev ice, a surface mounted high tem perature cut-off switch with m anual reset is supplied. As an option, an imm ersion high temp erature cut-off switch with m anual reset may be prov ided. Either high temperature cut- out switch is factory preset at 190°F. I n the event of an ov er-temperature conditi[...]

  • Page 7

    7 OPTION S The following optional features may be included in y our water heater. Reference included drawing specific to your heater for further details. Low Temperature Alarm Dry C ontacts A low temperature therm ostat is available with dry contacts to rem otely alarm when the tank water tem perature falls below a specified setpoint. The low tempe[...]

  • Page 8

    8 PIPIN G IN STAL LA TION NOTE: The most effectiv e means for preventing deterioration from accelerated corrosion due to g alvanic and stray current is the installation of dielectric fittings/unions. The installation of these fittings is the responsibility of the installing contractor. 1. Connect the cold water inlet and tepid water outlet to the a[...]

  • Page 9

    9 FILLI NG THE HEATER 1. Com pletely close the drain valve. 2. Open the hig hest tepid water outlet to allow all air to escape from piping. 3. The black plastic knob on the air v ent valve m ust be opened two turns to allow air to escape from the system . 4. Open the valv e to the cold water inlet and allow the heater and piping sy stem to com plet[...]

  • Page 10

    10 QUARTERLY I NSPECTIO N 3. Monitor thermostat a. Let water heater com pletely heat to a designated therm ostat setting. b. After therm ostat satisfies (that is, when the therm ostat actually clicks off), draw w ater from the relief val ve. c. Com pare water temperature of drawn w ater to the tem perature setting of the therm ostat when it satisfi[...]

  • Page 11

    11 MIXING VALVE INSPECTION AND TES T LOG COMPANY: H E A T E R S E R I A L N U M B E R : DATE START-UP SPIKE OUTPU T TEMPERATURE COMMENTS TESTED BY[...]

  • Page 12

    12 SECTION IV – TROUBLESHOOTING Symptom Probable Cause Corrective Action / Remedy Circuit breaker tripped at source. Reset circuit breaker. High lim it switch tripped. Reset high limit sw itch. Loose wires. Torque screws holding wires. Heating element inoperable. Che ck he at in g el emen t o per at io n b y cl ampi ng an Am probe around each wir[...]

  • Page 13

    13 SECTION V - SERVICING & REPLACEMENT OF PARTS WARNING / CAUTION Before servicing or replacing any part m ake sure to turn the power supply sw itch to the OFF position. SURFACE TEMP ERATURE HIGH LIMI T CUT-OF F 1. Disconnect power from unit. 2. Rem ove access cov er. 3. Disconnect the four (4) 14 gaug e wires. Control Wires 4. Remov e the two [...]

  • Page 14

    14 IMMERSI ON TEMP ERATURE HIGH LIMIT CUT- OF F 1. Disconnect power from unit. 2. Rem ove access cov er. 3. Remo ve h igh li mit co ver s cr ew a nd co ver . Cover Cover Screw Reset Switch 4. Disconnect the two (2) 14 gaug e wires. Wires Capillary Tube 5. Rem ove capillary tube and bulb from thermo well. 6. Remov e two (2) mounting screws. M o u n [...]

  • Page 15

    15 SINGLE PH ASE HEATING ELEM ENT 1. Disconnect power from unit. 2. Shut off incoming water supply. 3. Attach hose to drain connection. 4. Lift manual release lev er on relief valve to let air into system or break union on outgoing water line. 5. Drain water from tank . 6. Disconnect the wires from the heating element term inals. Tank Flange Wires [...]

  • Page 16

    16 3-PH ASE HEATING ELEMENT 1. Disconnect power from unit. 2. Shut off incoming water supply. 3. Attach hose to drain connection. 4. Lift manual release lev er on relief valve to let air into system or break union on outgoing water line. 5. Drain water from tank . 6. Disconnect the wires from the heating element term inals. 7. Remov e the 3/8-16 nu[...]

  • Page 17

    17 3-PHASE ELEMENT JUMPER CONFI GURATION[...]

  • Page 18

    18 IMMERSI ON THERMO STAT 1. Disconnect power from unit. 2. Rem ove access cov er and locate thermostat. 3. Remo ve h igh li mit co ver s cr ew a nd co ver . Cover Cover Screw 4. Disconnect the two (2) 14 gaug e wires. Wires Capillary Tube 5. Rem ove capillary tube and bulb from . thermo well. 6. Remov e two (2) mounting screws. Mounting Screws 7. [...]

  • Page 19

    19 MAGNETIC CONTACTO R (3-P HASE O NLY) 1. Disconnect power from unit. 2. Disconnect line and load wires to contactor. 3. Disconnect two (2) 14 gaug e control circuit wires. Control Wires Line Wires Load Wires 4. Loosen two (2) holding screws and rem ove contactor. Mounting Screws (Bottom screw not shown) 5. Replace with new contactor using reverse[...]

  • Page 20

    20 RELIEF VALVE 1. Disconnect power from unit. 2. Shut off incoming water supply. 3. Lift test lever on relief v alve to relieve pressure in tank. 4. Disconnect overflow piping . 5. Unscrew relief v alve, remov e assemb ly and replace with new one. 6. Connect overflow piping . 7. Turn on incoming water supply and check for leaks. 8. Turn safety swi[...]

  • Page 21

    21 MIXING VALVE 1. Disconnect power from unit. 2. Shut off incoming water supply. 3. Lift test lever on relief v alve to relieve pressure in tank. 4. Drain tank. 5. Disconnect unions on both sides of the mixing valv e. 6. Remov e mixing valv e. 7. Replace m ixing v alve. 8. Fill system in accordance with procedures on page 9. Acorn Nut Cap H o t W [...]

  • Page 22

    22 SECTION VI – ELEMENT CHA RTS SINGLE PH ASE ELEMENT CHART Power (Watts) Element Part # 120V 208V 240V 277V 480V Immer s i o n Length Element R esistance (Ohms) CH-FO- 358 ---- 3500 ---- ---- ---- 11 3/ 8 " 12.36 CH-FO- 408 ---- 4000 ---- ---- ---- 11 3/ 8 " 10.82 CH-FO- 508 ---- 5000 ---- ---- ---- 13 1/ 4 " 8.65 CH-FO- 608 2000 [...]