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Hubbell Electric Heater Company EMV Operating And Maintenance Manual

Packaged electric tepid water heating system
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OPERATING AND MAINTENANCE MANUAL
FOR PACKAGED ELECTRIC TEPID
WATER HEATING SYSTEM
ELECTRIC HEATER COMPANY
BASE MODEL " EMV "

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Summary of Contents for Hubbell Electric Heater Company EMV

  • Page 1 OPERATING AND MAINTENANCE MANUAL FOR PACKAGED ELECTRIC TEPID WATER HEATING SYSTEM ELECTRIC HEATER COMPANY BASE MODEL “ EMV ”...

  • Page 2: Warning / Caution

    If questions regarding installation arise, check your local plumbing and electrical inspectors for proper procedures and codes. If you cannot obtain the required information, contact the company.

  • Page 3: Table Of Contents

    SECTION TITLE GENERAL DESCRIPTION AND CONSTRUCTION INSTALLATION SCHEDULED MAINTENANCE AND OPERATION TROUBLESHOOTING SERVICING & REPLACEMENT OF PARTS ELEMENT CHARTS TABLE OF CONTENTS PAGE #...

  • Page 5: General Description And Construction

    SECTION I - GENERAL DESCRIPTION This manual describes a packaged electric water heater system designed to meet the requirements of ANSI Z358.1-1998 for tepid water delivery to an emergency drench system. The complete assembly consists of the storage tank, immersion electric heating element(s), thermostat(s), safety relief valve, safety high temperature cut out, mixing valve, and any other required electrical operating control.

  • Page 6: Mixing Valve

    The tank is encapsulated in 3-inch thick polyurethane foam insulation. The insulation is protected by a high impact non-corroding colorized composite protective jacket. OPTIONS The following optional features may be included in your water heater. Reference included drawing specific to your heater for further details. Low Temperature Alarm Dry Contacts A low temperature thermostat is available with dry contacts to remotely alarm when the tank water temperature falls below a specified setpoint.

  • Page 7: Installation

    1. Place the heater on a solid foundation in a clean, dry location nearest to the point of most frequent tepid water use 2. The water heater should be protected from freezing and waterlines insulated to reduce energy and water waste.

  • Page 8: Filling The Heater

    3. Install a relief valve overflow pipe to a nearby floor drain. CAUTION: No valve of any type should be installed between the relief valve and tank or in the drain line. 4. On startup, thermal expansion will cause the water to expand. Hubbell recommends that a thermal expansion tank or supplementary pressure relief device be installed in the hot water outlet to allow for this expansion.

  • Page 9: Recirculation Package

    MAINTENANCE AND OPERATION The water heater is automatic in its operation. It will maintain a full tank of water at the temperature setting of the thermostat. The water heater should not be turned on without first making sure that the tank is full of water and that all air has been released.

  • Page 10: Quarterly Inspection

    15 seconds. QUARTERLY INSPECTION 1. Monitor thermostat a. Let water heater completely heat to a designated thermostat setting. b. After thermostat satisfies (that is, when the thermostat actually clicks off), draw water from the relief valve. c. Compare water temperature of drawn water to the temperature setting of the thermostat when it satisfies.
  • Page 11 MIXING VALVE INSPECTION AND TEST LOG COMPANY: HEATER SERIAL NUMBER: DATE START-UP OUTPUT COMMENTS TESTED BY SPIKE TEMPERATURE...

  • Page 12: Troubleshooting

    SECTION IV – Symptom No hot water in tank Circuit breaker tripped at source. High limit switch tripped. Loose wires. Heating element inoperable. Low line voltage. Faulty thermostat. Water temperature in Faulty thermostat. tank below settings at all times Heating element not working on all phases Heater improperly sized Relief valve discharges...

  • Page 13: Servicing & Replacement Of Parts

    SECTION V - 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.
  • Page 14 IMMERSION TEMPERATURE HIGH LIMIT CUT-OFF 1. Disconnect power from unit. 2. Remove access cover. 3. Remove high limit cover screw and cover. Reset Switch 4. Disconnect the two (2) 14 gauge wires. Wires 5. Remove capillary tube and bulb from thermowell. 6.
  • Page 15 SINGLE PHASE HEATING ELEMENT 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 system or break union on outgoing water line. 5.
  • Page 16 3-PHASE HEATING ELEMENT 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 system or break union on outgoing water line. 5.
  • Page 17 3-PHASE ELEMENT JUMPER CONFIGURATION...

  • Page 18: Immersion Thermostat

    IMMERSION THERMOSTAT 1. Disconnect power from unit. 2. Remove access cover and locate thermostat. 3. Remove high limit cover screw and cover. 4. Disconnect the two (2) 14 gauge wires. 5. Remove capillary tube and bulb from thermowell. 6. Remove two (2) mounting screws. 7.
  • Page 19 MAGNETIC CONTACTOR (3-PHASE ONLY) 1. Disconnect power from unit. 2. Disconnect line and load wires to contactor. 3. Disconnect two (2) 14 gauge control circuit wires. Load Wires 4. Loosen two (2) holding screws and remove contactor. (Bottom screw not shown) 5.

  • Page 20: Relief Valve

    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 assembly and replace with new one. 6.
  • Page 21 MIXING 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. Drain tank. 5. Disconnect unions on both sides of the mixing valve. 6. Remove mixing valve. 7.

  • Page 22: Element Charts

    SECTION VI – SINGLE PHASE ELEMENT CHART Element Part # 120V CH-FO-358 ---- CH-FO-408 ---- CH-FO-508 ---- CH-FO-608 2000 CH-FO-304 ---- CH-FO-354 ---- CH-FO-404 ---- CH-FO-454 ---- CH-FO-504 ---- CH-FO-604 1500 TGB-1203-480 ---- TGB-1353-480 ---- TGB-2257L 2500 TGB-1207-240 TGB-1303-480 ---- TGB-1403-480 ---- TGB-2257-240...

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