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Hubbell Electric Heater Company D manual

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Table of contents for the manual

  • Page 1

    OPERATING AND MAINTENANCE MANUAL FOR ELECTRIC STAINLESS STEEL HEATER FOR DEIONIZED (DI) WATER ELECTRIC HEATER COMPANY BASE MODEL “ D ”[...]

  • 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 complete ly fille d with water and a ll air is to be vente d bef[...]

  • Page 3

    3 TABLE OF CONTENTS SECTION TITLE PAG E # I GENERAL DESCRI P TI ON AND CONSTRUCTION 5 II INSTAL LATI ON 9 III S C H E D U LE D M A IN TE NANC E AND OPERATION 12 I V TROUBL ES HOOTI NG 14 V SER VI CING AND REP LACEMENT OF PARTS 16 VI MI SCELL ANEOUS C HARTS AND FORMULAS 23[...]

  • Page 4

    4[...]

  • Page 5

    5 SECTION I - GENERAL DESCRIPTION AND CONST RUCTION GENERAL DESCRIPTION This booklet describes an electric heater designed specifically for use in deionized (DI ) water applications. The complete assembly consists of a type 316L stainless steel storage tank, ty pe 316L stainless steel imme rsion electr i c heating element(s), thermostat, safety rel[...]

  • Page 6

    6 CONTROL THERMOS TAT The water heater is supplied with a single stage imme rsion thermostatic switch that i s installed and wi red 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 are [...]

  • Page 7

    7 OUTER SHELL AND INSULATION The tank is encapsulated in 2-inches of high-density fiberglass insulation. The protective shell is constructed of galvaneel and is coated with a durable silver hammertone finish. OPTIONS The following optional features may be included in y our water heater. Reference included drawing specific to y our heater for furthe[...]

  • Page 8

    8 Individually Fused Ele me nts To prevent the possibility of damage to c ontrol circuits a nd other eleme nts in case of electric al overloads, fuses may be supplied for each circuit. Two ty pes of fuses m ay be used; a type NON for voltages less than 250-volt or ty pe JJ S for voltage less than 600-volt. Ty pe JJ S Ty pe NON Digital Display A 1/1[...]

  • Page 9

    9 SECTION II – INSTALLATION WARNING / CAUTION DO NOT TURN ON THE ELECTRI C POWER SUPPL Y to this equipment until heate r is completely filled with water and all air ha s been released. I f the heater is NOT filled with water when the power is turned on, the heating elements will burn out. For protection against excessive pressures and temperature[...]

  • Page 10

    10 Outlet to floor drain I nstall into provided tapping Manual Release Lev e r Temperature and Pressure Relief Valve 3. I nstall a relief valve overflow pipe to a nearby floor drain. CAUTION: No valve of any ty pe should be installed between the relief valve and tank or in the drain line. FILLING THE HEATER 1. Open the pressur e relief valve test l[...]

  • Page 11

    11 THERMOSTAT SETTING (BULB AND CAPILLARY IMMERSION TYP E) The bulb and capillary type thermostat is immersed in a Ty pe 316L stainless steel well in the storage vessel. The full thermostat range is 100-240 ° F, but should not be operated over 195 ° F. There is a setting screw, which can be locked at a pa rticular se tting to prevent an opera tor[...]

  • Page 12

    12 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 13

    13 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 14

    14 SECTION IV – TROUBLESHOOTING Symptom Probable Cause Corrective Action / Remedy Circuit breaker tripped at source. Reset circuit breaker. Blown fuse in transformer, if installed. Replace fuse. Circuit breaker at control cabinet tripped, if installe d. Reset circ uit breaker. Blown fuse in element fuse block, if installed. Replace fuse. High lim[...]

  • Page 15

    15 Faulty thermostat. Che ck thermostat a djustment. Monitor thermostat as described i n S e c t i o n III, Q u a rt er 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 16

    16 SECTION V - SERVICING & REPLACEMENT OF PARTS WARNING / CAUTION Before servicing or replacing any part make sure to turn the power supply switch to the OF F 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) mou[...]

  • Page 17

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

  • Page 18

    18 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 outgoing water line. 5. Drain water from tank. 6. Disconnect the wires from the heating elem ent terminal s. 7. Remove the 3/8-16 nuts. Tank[...]

  • Page 19

    19[...]

  • Page 20

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

  • Page 21

    21 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 22

    22 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 repl ace with new one. 6. Connect overflow piping. 7. Turn on incoming water supply and check for leaks. 8. Turn safety switch[...]

  • Page 23

    23 SECTION VI – MISCELL ANEOUS CHARTS AND FORMULAS ELEMENT CHA RT Power (kW) Resistance (Ohms) Element Part # 208V 240V 480V I mmersion L ength Hairpin 1 Φ 3 Φ DELTA 3 Φ WYE 50-38683SSN 5 6 8 13" 27.9 9.3 27.9 18.7 60-38683SSN 6 8 10 13" 21.6 7.2 21.6 14.5 70-38683SSN 8 10 12 13" 17.1 5.7 17.1 11.5 80-38683SSN 10 12 15 13" [...]

  • Page 24

    24 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[...]