Hubbell Electric Heater Company ME User's Manual
Contents
1. 4 2 F4 iy S L 9 4467 2 V Interlocked for Non Simultaneous Operation LJleN C 3 p oS O oU 2 Ss 4 5 J L sU 1 p 4 NS M O EX Non Interlocked for Simultaneous Operation SURFACE MOUNTED THERMOSTAT 1 Disconnect power from unit 2 Remove access cover and locate thermostat Mounting Screws 5 Replace thermostat using the reverse procedure 20 IMMERSION 1 Disconnect power from unit 2 Remove access cover and locate thermostat 3 Remove high limit cover screw and cover Cover Cover Screw k 4 Disconnect the two 2 or three 3 14 gauge wires as required Wires 5 Remove capillary tube and bulb from thermowell 6 Remove two 2 mounting screws Mounting Screws 7 Replace thermostat using reverse procedure Note Be sure to place capillary tube into slot in base prior to installing co2. Reset circuit breaker High limit switch tripped Reset high limit switch Loose wires Tighten wires Torque screws per torque chart included in Section VI Heating element inoperable Check heating element operation by clamping an Amprobe around each wire to the element The ampere reading should agree with the nameplate figure Low line voltage Have source electrical system checked by an electrician Faulty thermostat Move thermostat dial through full range A definite click should be heard If not replace thermostat Faulty low water cut off if installed Check to see if tank is full of water If not fill tank If problem continues and tank is full check for continuity between the common and normally open contact of the relay board If continuity is not observed replace low water cut off Water temperature below settings at all times Faulty thermostat Check thermostat adjustment Monitor thermostat as described in Section III Quarterly Inspection Replace if necessary Heating element 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 comparing with the chart included in Section VI Heater improperly sized Verify heater is properly sized for the flow rate and temperature rise of your system See formulas included in Section VI Replace el
3. 21 ic 3 4 16 1490 1220 1382 98 1558 1790 8 3440 2815 3185 2205 3595 4130 214 3110 2545 2885 1995 3250 3730 25 SECTION ABS TYPE APPROVAL PROGRAM SS PLANT LOCATION STRATFORD CT x A TYPE APPROVAL PROGRAM 485 OFFICE NEW YORK NEW JERSEY C ERTIFICATE OF Manufacturing Assessment This is to Certify that a representative of this Bureau did at the request of Hubbell The Electric Heater Company Attend their facilities at the location noted above in order to carry out an audit of their facilities and associated quality assurance and quality control procedures The facility is considered capable of consistently manufacturing PACKAGED ELECTRIC STORAGE TYPE WATER HEATERS in compliance with their ABS Product Design Assessment Certificates and the designated standards defined therein The product listed on their current Product Design Assessment Certificates are eligible to be placed on this Bureau s List of Type Approved Products subject to annual facility audits by a representative of this Bureau and renewal of this Certificate after five 5 years su DATE 2i M eL P 7 SURVEYOR S SIGNATURE je IRATION DATE 23 MARCH 2009 FIRST ANNUAL ENDORSEMENT SECOND ANNUAL ENDORSEMENT THIRD ANNUAL ENDORSEMENT FOURTH ANNUAL ENDORSEMENT AB257 09 03 Note This certificate evidences compliance with
4. been assessed Further unless it is specifically indicated in the description of the product Type Approval does not necessarily waive witnessed inspection or survey procedures where otherwise required for products to be used in a vessel MODU or facility intended to be ABS classed or that is presently in class with ABS Questions regarding the validity of ABS Rules or the need for supplemental testing or inspection of such products should in all cases be addressed to ABS Printed on 2002 08 16 09 14 55 168 Copyright 2001 American Bureau of Shipping All rights reserved 2 30
5. one or more of the Rules Guides standards or other criteria of American Bureau of Shipping or a statutory industrial or manufacturer s standard and is issued solely for the use of the Bureau its committees its clients or other authorized entities This certificate is governed by the terms and conditions on the reverse side hereof ABS Type Approval Manufacturing Assessment AQS and RQS TWZ 017 03 P01 W003 Attachment B Revision 1 Page 1 of 2 27 28 Issued 1999 04 13 00 00 00 Certificate Number 99 NY4274 X TYPE APPROVAL PROGRAM Certificate of Type Approval This is to certify that Hubbell The Electric Heater Company has met the requirements of ABS Product Type Approval for Packaged Electric Storage Type Water Heaters Model Name s M E Series Presented to Hubbell The Electric Heater Company 45 Seymour Street P O Box 288 Stratford Connecticut 06497 0288 Intended Service Designed to provide potable hot water for Onboard Commerical Marine reequirements Non Pleasure Craft Units are designed for Non Weather deck locations Description Commercial Electric Type Water Heaters Vertical or Horizontal Jacketed Insulated including all necessary and required operating controls Ratings Maximum Working Pressure 100 psig Maximum Design Temperature 98 9 degrees C 210 degrees F Capacity up to 120 Gallons U S Service Restrictions Not Applicable Comments a Welding is to be perfo
6. setting of the thermostat when it satisfies Normal variation between the two points is approximately 5 F If these two readings do not coincide within acceptable tolerances and verification has been made of the accuracy of the temperature reading gauge replace the thermostat 2 Lifttest lever on relief valve and let water run through valve for a period of approximately 10 seconds This will help flush away any sediment that might build up in water passageways 3 Inspect element flange for leakage as follows e gt Shut off Power Supply Remove element housing cover Visually inspect heating element gasket for evidence of leaks Rub finger around gasket that is between the heating element and tank flange for any evidence of moisture If moisture is present or a water drip is observed follow procedure outlined in Section V 4 Check for loose electrical connections Tighten as necessary 12 ANNUAL INSPECTION 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 Let water run for 3 4 minutes e Close drain valve f Open hot water valve g Turn power supply ON 13 SECTION IV TROUBLESHOOTING Symptom Probable Cause Corrective Action Remedy No hot water Circuit breaker tripped at source
7. supplied for in line installation shipped loose or factory installed in the tank 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 system The valve will be shipped loose for in line installation Instructions for installation are provided with the valve Electro Mechanical Timer An electro mechanical 7 day time clock with battery back up may be supplied for specific timing operations A set of instructions will be supplied with the timer SECTION II INSTALLATION WARNING CAUTION DO NOT TURN ON THE ELECTRIC POWER SUPPLY to this equipment until heater is completely filled with water and all air has been released Jf 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 temperatures local codes require the installation of a temperature and pressure T amp P relief valve certified by a nationally recognized laboratory that maintains periodic inspection of production of listed equipment of materials as meeting the requirements for Relief Valves and Automatic Gas Shutoff for Hot Water Supply Systems ANSI Z21 22 1971 THE CUSTOMER IS RESPONSIBLE TO PROTECT PROPERTY AND PERSONNEL FROM HARM WHEN THE VALVE FUNCTIONS water heaters have a risk of leakage at some unpredictable time IT IS THE CUSTOMER S RESPONSIBILITY TO PROVIDE A CATCH PAN OR OTH
8. 0 16 20 12 None 30 16 20 12 12 40 18 3 4 22 3 4 16 12 50 22 26 16 12 65 22 26 16 12 80 24 28 18 12 100 24 28 18 12 120 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 2 Install in line vacuum breaker if supplied 3 Install in line pressure and temperature gauge if supplied 4 Install 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 E Install into provided tapping Temperature Probe Temperature and Pressure Relief Valve 5 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 FILLING THE HEATER 1 Completely close the drain valve 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 heater and piping system to completely fill as indicated by a steady flow of water from the open faucet 10 ELECTRICAL INSTALLATION 1 Enter Junction box wi
9. 13 1 8 17 05 1500 4500 13 1 4 36 99 1000 5000 9 3 4 33 29 5000 15 15 35 6000 15 1 2 12 79 1500 2000 6000 15 1 2 27 74 wattage indicates the stamped element rating 23 FORMULAS 24 GPH x _ x 0 00244 KW KW X 410 C GPR 5 o cS KW x 410 __________ FAT GPH Note 1 KW will heat 4 1 GPH at a 100 F AT ELECTRICAL KW x 1000 173 Volts mpag KW x 1000 2502 2055 Volts METRIC CONVERSION Liters x 0 2641 Gallons Gallons x 3 79 Liters Gallons x 0 003785 m3 m3 x 264 2 Gallons 1 C AT 1 8 F AT oF 6 14 82 C F 32 x 0 556 psi x 0 06896 Bar Bar x 14 5 psi psi x 6 86 kPa kPa x 0 1456 psi Lbs x 0 4536 Kg Kg x 2 2 Lbs Watts Sq Cm x 6 4 Watts Sq In Watts Sq In x 0 155 Watts Sq Cm TORQUE VALUES SILICON ALUMINU BOLT SIZE B mE BRONZE 2024 D am IN LBS IN LBS 52 43 48 29 66 34 61 36 540 77 63 71 42 77 87 51 632 79 53 _ 12 1 11 2 Les pr ef es e D 52 615 668 456 788 940 770 870 570 990 143 247 1357 27 393 EN E 236 259 157 71644 376 28 Cn 57 4m 48 4 502 9 752 615 697 456
10. ER ADEQUATE MEANS SO THAT THE RESULTANT FLOW OF WATER WILL NOT DAMAGE PROPERTY WATER HEATER PLACEMENT 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 3 Leave a minimum of 18 clearance for element withdrawal 1f necessary 4 Do not install in an area where flammable liquids or combustible vapors are present SECURING OF HEATER 1 The heater is supported by four 2 inch x 2 inch x 4 inch thick angle iron legs each with a 3 inch x 3 inch x 4 inch thick steel base pad Each leg is provided with one 9 16 inch diameter bolt hole for one inch bolt which should be used to secure heater to the deck 2 In addition to the leg supports two 3 inch x 3 inch x V inch thick brackets with 7 8 inch diameter mounting holes are attached to the upper portion of the heater These brackets should be attached to bulkhead secured tie rods thus insuring further support of the heater for shipboard installation 9 16 Mounting Hole 4 Places Protective Jacket Insulation 7 8 Bulkhead Mounting Holes 2 Places 11 2 Mounting Dimensions Tank Overall Bolt Bulkhead Mounting Gallon Diameter Diameter Circle Dimension Capacity A B G D 16 20 12 None 10 16 20 12 None 2
11. OPERATING AND MAINTENANCE MANUAL FOR MARINE ELECTRIC WATER HEATER fubbe ELECTRIC HEATER COMPANY BASE MODEL ME 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 full model number and serial number when calling the factory WARNING CAUTION Tank is to be completely filled with water and all air is to be vented before energizing Due to the rigors of transportation all connections should be checked for tightness before heater is placed in operation Safety relief valve must be installed in tapping provided The refractory material used in heating elements may absorb some moisture during transit periods of storage or when subjected to a humid environment This moisture absorption results in a cold insulation resistance of less than twenty 20 megohms If this heater has been subjected to the above condition each heating element must be checked for insulation resistance before energizing A low megohm condition can be corrected by removing the terminal hardware and baking the element in an oven at 350 F 700 F for several hours or until the proper megohm reading is obtained KEEP AWAY FROM LIVE ELECTRICAL CIRCUITS Do not perform any maintenance make any adjustments or replace any components inside the control panel with the high voltage power supply turned on Under certain
12. Section 2 Insulation Protective Jacket Lower Thermostat Lower Heatin 18 Withdrawal Element eles Combination Cold Water Inlet And Drain With Diffuser Front View Side View SECTION I 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 The complete assembly consists of the storage tank immersion electric heating element s thermostat safety relief valve safety high temperature cut out and any other required electrical operating control Optional equipment may be supplied with your unit Please consult the product drawing for details specific to your assembly The unit is factory assembled insulated jacketed wired tested and ready for electrical and plumbing service connections CONSTRUCTION TANK Standard Tank Construction The standard storage tank is constructed of steel and internally lined with specially formulated Hydrastone cement to 5 inch minimum thickness The tank is designed for a maximum allowable working pressure of 100 psi 150 psi TP Optional Tank Construction Optionally the storage tank may be constructed of all welded solid copper silicon alloy ASTM B 96 or type 316L stainless
13. circumstances dangerous potentials may exist even when the power supply is off To avoid casualties always turn the power supply safety switch to off turn the charge or ground the circuit before performing any maintenance or adjustment procedure The unit is designed to operate at pressure not more than 100 psi Generalized instructions and procedures cannot anticipate all situations For this reason only qualified installers should perform the installations 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 If you cannot obtain the required information contact the company TABLE OF CONTENTS SECTION TITLE II HII VI VII GENERAL DESCRIPTION AND CONSTRUCTION INSTALLATION SCHEDULED MAINTENANCE AND OPERATION TROUBLESHOOTING SERVICING AND REPLACEMENT OF PARTS MISCELLANEOUS CHARTS AND FORMULAS ABS TYPE APPROVAL PROGRAM PAGE 12 14 15 23 26 MODEL DIMENSIONAL DATA T amp P Relief Valve 45 0 3 lt Top View Hot Water Outlet Combination Thermostat And Hi Limit i Hot Water Outlet T amp P Relief Valve Electrical Upper Heatin id Element Junction Box Tank Cross
14. ements with proper size as necessary Relief valve discharges continuously Excessive temperature or pressure in tank Temperature and pressure relief valves are made to operate if the water temperature exceeds 210 F or water pressure exceeds the pressure rating of the safety relief valve If trouble is excessive temperature then thermostat is not shutting off at the right setting and thermostat must be replaced 14 SECTION SERVICING amp 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 or three 3 14 gauge wires and a jumper as required Control Wires Mounting Screws 5 Replace control and install new high limit switch by performing above steps in reverse order 15 IMMERSION TEMPERATURE HIGH LIMIT CUT OFF 1 Disconnect power from unit 2 Remove access cover 3 Remove high limit cover screw and cover xx Bc Cover Screw Reset Switch ___ 4 Disconnect the two 2 14 gauge wires 5 Remove capillary tube and bulb from thermowell 6 Remove two 2 mounting screws Mounting Screws 7 Remove control and install new high limit switch by performing above SF Capillary Tube
15. rmed in accordance with approved procedures Procedure qualification records welder qualifications and production welds are to be maintained for records b Hydrostatic testing is to be performed at the plant of manufacturer for each unit and certified test reports are to be maintained for records Copyright 2001 American Bureau of Shipping All rights reserved Page 1 29 Relief valve settings to in accordance with 4 2 23 3 of the Rules d Overcurrent protection shall supplied by the end user at the time of final installation ABS Rules Applicable portions of the 1998 ABS Rules for Building and Classing Steel Vessels National Standards UL STD 174 USCG 46 CFR Part 53 01 International Standards Government Authority Others 4 0 Manager ABS Programs ABS has used due diligence in the preparation of this certificate and it represents the information on the product in the ABS Records as of the date and time the certificate was printed Type Approval requires Drawing Assessment Prototype Testing and assessment of the manufacturer s quality assurance and quality control arrangements Limited circumstances may allow only Prototype Testing to satisfy Type Approval The approvals of Drawings and Products remain valid as long as the ABS Rule to which they were assessed remains valid ABS cautions manufacturers to review and maintain compliance with all other specifications to which the product may have
16. sion thermostat can be adjusted through a range of 100 190 F Both thermostats are adjustable with a flat tip screwdriver Surface Mounted Thermostat Immersion Thermostat TEMPERATURE HIGH LIMIT SWITCH As a safety device either a surface mounted high temperature cut off switch with manual reset factory set at 190 F or an immersion high temperature cut off switch with manual reset factory set at 180 F is provided In the event of an over temperature condition the thermostat will disengage the power from the system The high limit must be manually reset thereafter to restart the heater Surface Mounted High Temperature Cut Off Switch Immersion High Temperature Cut Off Switch OUTER SHELL AND INSULATION The tank is encapsulated in 2 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 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 Once the condition 15 remedied the low water cut off switch is automatically reset Dial Temperature and Pressure Gauge A combination temperature 70 250 F and pressure 0 200 psi gauge with 2 5 inch dial may be
17. steel for maximum tank longevity No internal lining 15 required due to the non ferrous materials used in the construction of the pressure vessel The tank is designed for a maximum allowable working pressure of 100 psi 150psi TP TANK CONNECTIONS The heater is supplied with separate cold water and hot water connections Water entering the cold water inlet is deflected by means of a baffle within the tank The hot water outlet includes a built in heat trap to prevent hot water from radiating out from the heater 34 inch FNPT connection is located on the side of the heater for mounting a combination safety temperature and pressure relief valve An overflow line should be utilized from the relief valve outlet to a floor drain A 4 inch GHT connection is supplied for draining See drawing for locations and sizes HEATING ELEMENT The water heater is supplied with an electric immersion heating element assembly s composed of a copper sheathed element s that are brazed into a brass flange Each assembly is fastened to a corresponding tank flange using a gasket and four 4 3 8 16 x 1 inch long hex head steel bolts and nuts See drawing for voltage and power ratings 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 immer
18. steps in reverse order Note Be sure to place capillary tube into slot in base prior to installing cover 16 HEATING ELEMENT 1 2 3 4 Lift manual release lever on relief valve to let atr into system or break union on outgoing 7 8 Disconnect power from unit Shut off incoming water supply Attach hose to drain connection water line Drain water from tank Disconnect the wires from the heating element terminals Wires Remove the 3 8 16 nuts Withdraw element assembly and remove gasket Gasket Element Assembly Nuts 9 Install new gasket and insert new heating element 10 Rewire element according to type of unit as shown below 11 Fill tank and check around gasket for any leaks 17 L1 n 5 Single Element Operation 18 11 12 13 1 9 9 3 DO 2 Q 1 4 30 ems GL S FL v 3 Open Delta Wiring for Simultaneous Operation LI L2 mio
19. th 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 Allother electrical connections are made at the factory therefore no other electrical connections are necessary FINAL CHECKS 1 Check all connections for tightness 2 Ensure that all the above steps are completed 3 After the water is heated for the first time monitor the water temperature as described in Section Quarterly Inspection 11 SECTION III SCHEDULED MAINTENANCE 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 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 FREEZING The tank should be fully drained in the event the electricity has been turned off and if there is danger of freezing QUARTERLY INSPECTION 1 Monitor thermostat Let water heater completely heat to a designated thermostat setting After thermostat satisfies that 15 when the thermostat actually clicks off draw water from heater Compare water temperature of drawn water to the temperature
20. ver Capillary Tube 21 RELIEF VALVE Overflow Piping Outlet 27 l DO ELTON MA xU Disconnect power from unit Shut off incoming water supply Lift test lever on relief valve to relieve pressure in tank Disconnect overflow piping Unscrew relief valve remove assembly and replace with new one Connect overflow piping Turn on incoming water supply and check for leaks Turn safety switch to ON position Tank Connection Temperature Probe uiti SECTION VI MISCELLANEOUS CHARTS AND FORMULAS ELEMENT CHART Power Watts Immersion Element 120V 208V 240V 277V 480V Length Resistance Ohms 3500 11 3 8 12 36 4000 11 3 8 10 82 5000 13 1 4 8 65 2000 6000 13 3 8 7 21 3000 4000 9 3 4 19 20 2500 3500 9 3 4 16 46 3000 4000 11 1 2 14 40 4500 11 1 2 12 80 5000 11 1 2 11 52 1500 4500 6000 13 1 2 9 60 2000 7 5 8 83 23 500 1000 3500 12 1 2 47 56 2500 9 5 8 5 76 500 1500 2000 2500 13 3 8 28 80 990 3000 10 1 2 55 49 1000 1350 4000 13 5 8 41 62 2000 2500 3500 10 5 8 23 04 2500 13 1 4 66 59 4500
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