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Hubbell Electric Heater Company ME Operating And Maintenance Manual

Marine electric water heater

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OPERATING AND MAINTENANCE MANUAL FOR
MARINE ELECTRIC WATER HEATER
ELECTRIC HEATER COMPANY
BASE MODEL " ME "

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Summary of Contents for Hubbell Electric Heater Company ME

  • Page 1 OPERATING AND MAINTENANCE MANUAL FOR MARINE ELECTRIC WATER HEATER ELECTRIC HEATER COMPANY BASE MODEL “ ME ”...
  • Page 2 A qualified installer is a person who has licensed training and a working knowledge of the applicable codes regulation, tools, equipment, and methods necessary for safe installation of an electric resistance water heater. If questions regarding installation arise, check your local plumbing and electrical inspectors for proper procedures and codes.
  • Page 3: Table Of Contents

    SECTION TITLE GENERAL DESCRIPTION AND CONSTRUCTION INSTALLATION SCHEDULED MAINTENANCE AND OPERATION TROUBLESHOOTING SERVICING AND REPLACEMENT OF PARTS MISCELLANEOUS CHARTS AND FORMULAS ABS TYPE APPROVAL PROGRAM TABLE OF CONTENTS PAGE #...
  • Page 5: General Description And Construction

    GENERAL DESCRIPTION AND CONSTRUCTION GENERAL DESCRIPTION This book describes a packaged electric water heater, approved by ABS Americas (A Division of the American Bureau of Shipping) and the USCG (United States Coast Guard), which is a stationary, self contained unit and is designed and constructed specifically for marine applications on board a surface vessel.
  • Page 6 CONTROL THERMOSTAT The water heater is supplied with either a surface mounted or immersion thermostatic switch that is installed and wired at the factory. See drawing for specific details. The surface mounted thermostat can be adjusted through a range of 110° - 170° F. The immersion thermostat can be adjusted through a range of 100°...
  • Page 7 OPTIONS The following optional features may be included in your water heater. Reference included drawing specific to your heater for further details. Low Water Cut-Off Used as a safety device, the electronic low water cut- off is used to detect a low water situation and disengage the operating coils in the magnetic contactor(s).
  • Page 8: Installation

    1. Place the heater on a solid foundation in a clean, dry location nearest to the point of most frequent hot water use. 2. The water heater should be protected from freezing and waterlines insulated to reduce energy and water waste.
  • Page 9 Mounting Dimensions Tank Overall Diameter Diameter “A” “B” 18 3/4 22 3/4 Bolt Bulkhead Mounting Circle Dimension “C” “D” None None None Gallon Capacity...
  • Page 10 PIPING INSTALLATION NOTE: The most effective means for preventing deterioration from accelerated corrosion due to galvanic 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 hot water outlet to the appropriate connections as shown; refer to the drawing for location and sizes.
  • Page 11 ELECTRICAL INSTALLATION 1. Enter junction box with properly sized feeder leads. Single-phase installations require two (2) leads; three phase installations require three (3) leads. 2. Connect these power leads to wires enclosed in junction box with wire nuts. 3. All other electrical connections are made at the factory; therefore, no other electrical connections are necessary.
  • Page 12: Scheduled Maintenance And Operation

    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 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.
  • Page 14: Troubleshooting

    SECTION IV – Symptom No hot water Circuit breaker tripped at source. High limit switch tripped. Loose wires. Heating element inoperable. Low line voltage. Faulty thermostat. Faulty low water cut-off, if installed. Water temperature Faulty thermostat. below settings at all times Heating element not working on all phases...
  • Page 15: Vservicing And 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 or three (3) 14 gauge wires and a jumper, as required. Control Wires 4.
  • Page 16 IMMERSION TEMPERATURE HIGH LIMIT CUT-OFF 1. Disconnect power from unit. 2. Remove access cover. 3. Remove high limit cover screw and cover. 4. Disconnect the two (2) 14 gauge wires. Wires 5. Remove capillary tube and bulb from thermowell 6. Remove two (2) mounting screws. 7.
  • Page 17 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. Drain water from tank. 6.
  • Page 18 Single Element Operation 3 Ø Open Delta Wiring for Simultaneous Operation...
  • Page 19 Interlocked for Non-Simultaneous Operation SURFACE MOUNTED THERMOSTAT Non-Interlocked for Simultaneous Operation...
  • Page 20 1. Disconnect power from unit. 2. Remove access cover and locate thermostat. 3. Disconnect the two (2) or three (3) 14 gauge wires and jumpers, as required. Control Wires 4. Remove two (2) mounting screws and disconnect from high limit cut-off, if required. Mounting Screws 5.
  • Page 21 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) or three (3) 14 gauge wires, as required. 5. Remove capillary tube and bulb from thermowell. 6.
  • Page 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 assembly and replace with new one. 6.
  • Page 23: Miscellaneous Charts And Formulas

    SECTION VI – ELEMENT CHART Element Part # 120V 208V CH-FO-358 ---- 3500 CH-FO-408 ---- 4000 CH-FO-508 ---- 5000 CH-FO-608 2000 6000 CH-FO-304 ---- CH-FO-354 ---- 2500 CH-FO-404 ---- 3000 CH-FO-454 ---- CH-FO-504 ---- CH-FO-604 1500 4500 TGB-1203-480 ---- TGB-1353-480 ---- TGB-2257L 2500...
  • Page 24 FORMULAS...
  • Page 25 TORQUE VALUES 18-8 S/S BRASS BOLT SIZE IN.-LBS. IN.-LBS. 4-40 4-48 5-40 5-44 6-32 6-40 12.1 8-32 19.8 8-36 22.0 10-24 22.8 10-32 31.7 1/4-20 75.2 1/4-28 94.0 5/16-18 5/16-24 3/8-16 3/8-24 7/16-14 7/16-20 1/2-13 1/2-20 9/16-12 9/16-18 5/8-11 1110 5/8-18 1244 3/4-10...
  • Page 26: Abs Type Approval Program

    SECTION VII – ABS TYPE APPROVAL PROGRAM...