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Hubbell Electric Heater Company HSE manual

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Table of contents for the manual

  • Page 1

    OPERATING AND MAINTENANCE MANUAL FOR COMMERCIAL HORIZONTAL CEILING-HUNG ELECTRIC WATER HEATER ELECTRIC HEATER COMPANY BASE MODELS “ HE and HSE ”[...]

  • 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 8 III S C H E D U LE D M A IN TE NANC E AND OPERATION 11 I V TROUBL ES HOOTI NG 13 V SERVICI NG AND REPLACEMENT OF PARTS 14 VI MI SCELL ANEOUS C HARTS AND FORMULAS 20[...]

  • Page 4

    4[...]

  • Page 5

    5 SECTION I - GENERAL DESCRIPTION AND CONST RUCTION GENERAL DESCRIPTION This book describes a packaged electric water heater that is a stationary, self-contained unit. The complete assembly consists of the storage tank, immersion electric heating element(s), thermostat, safety relief valve, safety hig h temperature cut out, and any other required e[...]

  • Page 6

    6 TEMPERATURE HIGH LIMIT SWIT CH As a safety device, a surface mounted hig h temperature cut-off switch with manual reset, factory set at 190° F is provided. I n the event of an over-temperature condition, the thermostat will disengage the power from the unit, (in the HSE model the thermostat will disenga ge the operating coils in the magne tic co[...]

  • Page 7

    7 MAGNETIC CONTACTOR (HSE Models Only ) The magnetic contactor(s) is a heavy-duty resistiv e load ty pe rate d for 100,000 cy cle s. The contactor s upplies power to th e hea ti ng e lem en t( s) b as ed on t he resistive load (non-inductive) of the hea ter only when the thermostatic switc h is engaged, the reby pulling in the contacts until the de[...]

  • Page 8

    8 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 has been re leased. 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 temperature[...]

  • Page 9

    9 PIP ING INSTALLATION NOTE: The most effect ive means for preventing deteriorat ion from accelerated corrosi on due to galva nic and stray curr ent is the installation of dielectric fittings/unions. The installation of the se fittings is the responsibility of the installing contractor. 1. Thread cold water inlet and diffuser assembly into tank. Di[...]

  • Page 10

    10 FILLING THE HEATER 1. Completely close the drain va lve. 2. Open the highest hot water faucet to allow all air to escape from piping. 3. Open the valve to the cold water inlet and allow the hea t er and piping system to comple tely fill, as indicated by a steady flow of water from the open f aucet. ELECTRICAL IN STALLATION 1. Enter electric encl[...]

  • Page 11

    11 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 12

    12 4. I nspect ceiling supports for tightness and/or damag e. 5. Check for loose electri cal connections. Tighten as necessary. 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[...]

  • Page 13

    13 SECTION IV – TROUBLESHOOTING Symptom Probable Cause Corrective Action / Remedy Circuit breaker tripped at source. Reset circuit breaker. High limit switch tr ipped. Reset hig h limit switch. Loose wires. Tighten wires. Torque screws per torque chart included in Section VI . Heating element inoperable. Ch eck he ati ng e le men t ope rat i on b[...]

  • Page 14

    14 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 15

    15 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 16

    16[...]

  • Page 17

    17 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 18

    18 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 19

    19 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 20

    20 SECTION VI – MISCELL ANEOUS CHARTS AND FORMULAS FORMULAS 3-PHA S E 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 2-38683N 2.5 3 4 13" 57.6 19.2 57.6 38.6 3-38683N 3 4 5 13" 43.2 14.4 43.2 28.9 4-38683N 4 5 6 13" 34.4 11.5 34.4 23.0 5-38683N 5 6 8 13&[...]

  • Page 21

    21 SINGLE P HASE ELEMENT CHART Power (Wat ts) Element Part # 120V 208V 240V 277V 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" 7.21 CH-FO[...]

  • Page 22

    22 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[...]