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Hubbell Electric Heater Company V15 manual

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Table of contents for the manual

  • Page 1

    OPERATING AND MAINTENANCE MANUAL FOR ELECTRIC INDUSTRIAL PROCESS WATER HEATER ELECTRIC HEATER COMPANY BASE MODEL “ V6 a nd V15 ”[...]

  • 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 number and serial num ber when calling the factory. WARNING / CAUTION 1. Tank is to be complete ly filled with water and all a ir is to be vented befor[...]

  • Page 3

    3 TABLE OF CONTENTS SECTION TITLE PAG E # I GENERAL DESCRI PTION AND CONSTRUCTION 5 II I NSTALL ATI ON 10 III S C H E D U LE D M A IN T E NANCE AND OPERATION 17 I V TROUBLESHOOTI NG 19 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 2 1 VI MI SC ELL ANEOUS C HARTS AND FORMULAS 27[...]

  • Page 4

    4[...]

  • Page 5

    5 SECTION I - GENERAL DESCRIPTION AND CONST RUCTION GENERAL DESCRIPTION This booklet describes an electric water heater designed for use in an industrial or commercial application. The complete assembly consists of the storage tank, immersion electric heating element(s), thermostat, safety relief valve, safety high temperature cut out, ma gnetic co[...]

  • Page 6

    6 CONTROL THERMOS TAT The water he ater is supplied with a sing le stage imme rsion thermostatic switch that i s install ed and wired at the factory. The thermostat can be adjusted through a range of 100° - 195° F , (an optional low range, 30° - 110° F, is available), and is adjustable with a flat tip screwdriver. Other thermostati c controls a[...]

  • Page 7

    7 OUTER SHELL, INSULATION, AND SUPP ORTS The tank is encapsulated in 2-inches of high-density fiberg lass insulation. The protective shell is constructed of galvaneel and is coated with a durable silver hammertone finish. NSF approved adjustable plastic legs are provided for support. FUSED LOW VOLTAGE TRANS FORMER A fused low voltag e transformer i[...]

  • Page 8

    8 Dial Temperature an d Pressure Gauge A combination temperature (70° - 250° F) and pressure (0 – 200 psi) gaug e with 2½-inch dial may be supplied for in-line installation (shipped loose). Vacuum Relief Valve A vacuum relief valve may be provided with the unit to reduce the risk of back siphonage and back pressure of the sy stem. The valve wi[...]

  • Page 9

    9 Silicon Control Re ctifier A silicon control rectifier (SCR) “zero fired” power controller for 0-100% proportional control of heaters may be supplied. Digital Display A 1/16 DIN electronic temperature control package may be installed. A separate manufacturer’ s operating manua l will be supplied with the unit. Optional Connections Flanged i[...]

  • Page 10

    10 SECTION II – INSTALLATION WARNING / CAUTION DO NOT TURN ON THE ELECTRI C POWER SUPPLY to this equipment until he ater is completely fille d with water and all air ha s been relea sed. If the heater is NOT fille d with water when the power is turned on, the heating elements will burn out. For protection against excessive pressures and temperatu[...]

  • Page 11

    11 4. I nstall the combination temperature and pressure safety relief valve in the tapping provided. Note that this is required by law for safety considerations. Outlet to floor drain I nstall into provided tapping Manual Release Lev e r Temperature Probe Temperature and Pressure Relief Valve 5. I nstall a relief valve overflow pipe to a nearby flo[...]

  • Page 12

    12 FINAL CHECKS 1. Check all connections for tightness. 2. Ensure that all the above steps are completed 3. After the wa ter is heated for the first time, monitor the water te mperature as desc ribed in S e c t i o n III, Q u a r t e r l y In s p e c t i on. Outgoing Hot Water I ncoming Cold Wa ter 1 – V Model Water Heater 2 – Pressure and Temp[...]

  • Page 13

    13[...]

  • Page 14

    14[...]

  • Page 15

    15 1 – Terminal Block 2 – Magnetic Contactor 3 – Heating Element 4 – Low Water Cut-Off, if supplied 5 – Transformer, 480-Volt/240-Volt, installed on 480-Volt models only . 6 – High-Te mperature L imit Switch 7 – Control Thermostat 8 – I lluminated On/Off Switch[...]

  • Page 16

    16[...]

  • Page 17

    17 SECTION III - SCHEDULED MAINTE NANCE AND OPERATION WARNING / CAUTION Before performing any maintenance procedure, make certain power supply is OFF and cannot accidentally be turned on. MAINTENANCE AND OPERATION The water heater is automatic in its operation. I t will maintain a full tank of water at the temperature setting of the thermostat. The[...]

  • Page 18

    18 ANNUAL INSPECTION 1. Flush tank as follows a. Shut off power supply . b. Close valve on hot water outlet piping. c. Open valve on drain piping. d. Cold water inlet line pressure will be strong enough to flush sediment from the bottom of the tank out through the drain. L et water run for 3-4 minutes. e. Close drain valve. f. Open hot water valve.[...]

  • Page 19

    19 SECTION IV – TROUBLESHOOTING Symptom Probable Cause Corrective Action / Remedy Circuit breaker tripped at source. Reset circuit breaker. On/Off switch in ‘OFF’ position Turn switch to ‘ON’ position Blown fuse in transformer, if installed. Replace fuse. Circuit breaker at control cabinet tripped, if installe d. Reset circ uit breaker. B[...]

  • Page 20

    20 Faulty thermosta t. Check thermostat adjustment. Monitor thermostat as described i n S e c t i o n III, Q u a r t e r l y I nspection. Replace if necessary. Heating e lement not working on all phases Check to see that heating element is working on all phases, by checking the resistance (ohms) value for each element and c omparing with the chart [...]

  • Page 21

    21 SECTION V - SERVICING & REPLACEMENT OF PARTS WARNING / CAUTION Before servicing or replacing any part make sure to turn the power supply switch to the OFF position. SURFACE TEMPERATURE HIGH LIMIT CUT -OFF 1. Disconnect power from unit. 2. Remove access cover. 3. Disconnect the four (4) 14 gauge wires. Control Wires 4. Remove the two (2) moun[...]

  • Page 22

    22 IMMERSION TEMPERATURE HIGH L IMIT CUT-OFF 1. Disconnect power from unit. 2. Remove access cover. 3. Remove high limit c over screw and c over. Cover Cover Screw Reset Switch 4. Disconnect the two (2) 14 gauge wires. Wires Capillary Tube 5. Remove capilla ry tube and bulb from thermowe ll 6. Remove two (2) mounting screws. Mounting Screws 7. Remo[...]

  • Page 23

    23 HEATING ELEM ENT 1. Disconnect power from unit. 2. Shut off incoming water supply . 3. Attach hose to drain connection. 4. Lift manual release lever on relief valve to let air into sy stem or break union on outg oing water line. 5. Drain water from tank. 6. Disconnect the wires from the heatin g element terminal s. 7. Remove the 3/8-16 nuts. Tan[...]

  • Page 24

    24 IMMERSION THE RMOSTAT 1. Disconnect power from unit. 2. Remove access cover and locate t hermostat. 3. Remove high limit c over screw and c over. Cover Cover Screw 4. Disconnect the two (2) 14 gauge wires. Wires Capillary Tube 5. Remove capilla ry tube and bulb from thermowe ll. 6. Remove two (2) mounting screws. Mounting Screws 7. Replace therm[...]

  • Page 25

    25 MAGNETIC CONTACTOR 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 remove contactor. Mounting Screws (Bottom screw not shown) 5. Replace with new cont actor using reverse procedure.[...]

  • Page 26

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

  • Page 27

    27 SECTION VI – MISCELL ANEOUS CHARTS AND FORMULAS ELEMENT CHA RT Power (Wat ts) Element Part # 120V 208V 240V 480V I mmersion L ength Element Resistance (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 6000 ---- ---- 13 3/8"[...]

  • Page 28

    28 FORMULAS[...]

  • Page 29

    29 TORQUE VALUE S BOLT SIZE 18-8 S/S IN. - LB S . BRASS IN. - LB S . SI LI CON BRONZE IN. - LB S . ALUMI NUM 2024-T4 IN. - LB S . 316 S/S IN. - LB S . MONEL IN. - LB S . 4-40 5.2 4.3 4.8 2.9 5.5 5.3 4-48 6.6 5.4 6.1 3.6 6.9 6.7 5-40 7.7 6.3 7.1 4.2 8.1 7.8 5-44 9.4 7.7 8.7 5.1 9.8 9.6 6-32 9.6 7.9 8.9 5.3 10.1 9.8 6-40 12.1 9.9 11.2 6.6 12.7 12.3 8[...]