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Series Nine
ELECTRIC
WATER HEATER
USER’S GUIDE
Model Numbers
HRE2930T
HRE3930T
HRE2940L
HRE3940L
HRE2940S
HRE3940S
HRE2940T
HRE3940T
HRE2950S
HRE3950S
HRE2950T
HRE3950T
HRE2966T
HRE3966T
FOR POTABLE WATER
HEATING ONLY
GAMA certification applies to all residential
electric water heaters with capacities of 20 to
NOT SUITABLE FOR
120 Gallons. Input rating of 12 Kw or less at a
SPACE HEATING
voltage no greater than 250 V.
Caution:
WARNING
Read and Follow All
READ THE GENERAL SAFETY SECTION BEGINNING
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Safety Instructions WARNING WARNING Improper installation, adjustment, alteration, service At the time of manufacture this water heater was pro- or maintenance can cause DEATH, SERIOUS BODILY vided with a combination temperature-pressures relief INJURY, OR PROPERTY DAMAGE. Refer to this manu- valve certified by a nationally recognized testing labora- al for assistance consult your local utility or call tory that maintains periodic inspection of production of Maytag Customer Service at 1-800-788-
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Safety Instructions (cont’d) WARNING WATER HEATERS EQUIPPED FOR ONE VOLTAGE ONLY: This water heater is equipped for one type voltage only. Check the rating plate near the bot- tom access panel for the correct voltage. DO NOT use this water heater with any voltage other than the one shown on the model rating plate. Failure to use the correct voltage can cause problems which can result in DEATH, SERIOUS BODILY INJURY, OR PROPERTY DAMAGE. If you have any questions or doubts consult your electric co
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Table of Contents Safety Instructions .....................................................................................................................................2,3 Table of Contents...........................................................................................................................................4 Customer Information............................................................................................................................5 Product Specification
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Customer Information NEC - National Electrical Code NFPA 70. This publica- Thank You for purchasing a Maytag water heater. tion is available from your local government or public Properly installed and maintained, it should give you years of library or electric company or by writing Underwriters trouble free service. It is strongly suggested that this new Laboratories Inc., 333 Pfingsten Road, Northbrook, IL water heater be professionally installed, call Maytag Customer 60062. Service at 1-800-78
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Product Specifications Model HRE2930T HRE2940L HRE2940S HRE2940T HRE3930T HRE3940L HRE3940S HRE3940T Tank Capacity In Gallons 30 40 40 40 Element Upper 3800 3800 3800 3800 Wattage at 240 Volt Lower 3800 5500 3800 5500 3800 5500 3800 5500 Recovery Rate Upper 17.3 17.3 17.3 17.3 In Gals Per Hr. @ 90°F Rise Lower 17.3 25 17.3 25 17.3 25 17.3 25 1 Diameter 18″ 25″ 20 /2″ 18″ 1 1 1 Height 46 /2″ 32 /4″ 44″ 59 /2″ Maximum Fuse or Circuit Breaker Size 20 30 20 30 20 30 20 30 Minimum Wire Size (Gauge
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Accessories and Tools Needed Accessories To simplify the installation Maytag has available the installa- tion parts shown below. You may or may not need all of these accessories depending on your type of installation. Call Maytag Customer Service at 1-800-788-8899 for an autho- rized installer. DRAIN PANS AVAILABLE IN 22″ DIAMETER (PART NUMBER 66001011) FOR WATER HEATERS HAVING EXPANSION TANKS FOR THERMAL EXPANSION A DIAMETER 20″ OR LESS, 24” DIAMETER (PART CONDITIONS AVAILABLE IN 2 GALLON (PART
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Instructions for Installation Removing the Old Water Heater Turn “OFF” electrical supply to the water heater. a. If you have copper piping to the water heater, the two 1 5 copper water pipes can be cut with a hacksaw approxi- mately four inches away from where they connect to the water heater. This will avoid cutting off the pipes too short. Additional cuts can be made later if neces- sary. Disconnect the temperature-pressure relief valve drain line. When the water heater is drained, discon- nec
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Instructions for Installation (cont’d) Locating The New Water CAUTION WATER HEATERS EVENTUALLY LEAK: Installation of the Heater water heater must be accomplished in such a manner that if the tank or any connections should leak, the flow You should carefully choose an indoor location for the new of water will not cause damage to the structure. For this water heater, because the placement is a very important con- reason, it is not advisable to install the water heater in an attic or upper floor. W
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Instructions for Installation (cont’d) The Convertible Lower Element The Upper Element, is a conventional 3800 watt element which only operates at its rated wattage on 240 volts. (See rat- ing plate on water heater). The Lower Element of the water heater can be converted from operation at 3800 watts to 5500 watts on a 240 volt system. Read and follow water heater warnings and instructions.If after reading these instructions in this manual, if you do not understand any portion, call Maytag Custom
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Instructions for Installation (cont’d) 2. Look at the top cover of the water heater. The cold water inlet Water Piping is marked cold. Connect the cold water pipe to the cold water inlet of the water heater. *WARNING NOTE: Your water heater is super insulated to minimize heat HOTTER WATER CAN SCALD: Water heaters are intend- loss from the tank. Further reduction in heat loss can be accom- ed to produce hot water. Water heated to a tempera- plished by insulating the hot water lines from the water
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Instructions for Installation (cont’d) Temperature-Pressure Relief Valve WARNING WARNING At the time of manufacture this water heater was provided The temperature-pressure relief valve must be manu- with a combination temperature-pressures relief valve cer- ally operated at least once a year. Caution should be tified by a nationally recognized testing laboratory that taken to ensure that (1) no one is in front of or maintains periodic inspection of production of listed equip- around the outlet o
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Instructions for Installation (cont’d) Filling the Water Heater To fill the water heater with water: WARNING 1. Close the water heater drain valve by turning the handle to Before making the conversion to 5500 watts, check the right (clockwise). The drain valve is on the lower front the (1) power supply...must be 240 volts, (2) wiring...10 gauge AWG @ Type TW, 60°C or equiva- of the water heater. lent, and (3) Circuit breakers or fusing...capable of 2. Open the cold water supply valve to the wate
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Instructions for Installation (cont’d) Converting the Lower Element (cont’d) 1. Before beginning the conversion turn “OFF” electric 4. Lift out the tab as shown to unclip the terminal cover from power supply to the water heater. the thermostat. The terminal cover can now be removed from the thermostat. Lift out tab to unclip terminal cover from thermostat. WARNING HAZARD OF ELECTRICAL SHOCK! Before removing any access panels or servicing the water heater, make sure the electrical supply to the w
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Instructions for Installation (cont’d) Converting the Lower Element (cont’d) 7. The wire removed from terminal 2 has a looped end. It 11. Replace the access panel. must remain looped and now be placed (as shown) on top of the buss bar, over the opening of terminal 2, and secured using the remaining screw. 8. Tighten terminals 2 and 3 to ensure proper electrical con- nection. WARNING 12. Complete wiring to the water heater, or if completed, Failure to tighten terminal screws can cause a fire turn
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Instructions for Installation (cont’d) TO ELECTRIC Wiring Diagrams POWER SUPPLY STANDARD WIRING FOR BLACK 2 WIRE LEAD WATER HEATERS NON-SIMULTANEOUS OPERATION RED 240 VOLT DOUBLE ELEMENT UPPER E.C.O. & THERMOSTAT UPPER ELEMENT LOWER HEATING ELEMENT WIRING FOR 3 WIRE LEAD WATER YELLOW HEATERS NON-SIMULTANEOUS OPER- ATION 240 VOLT DOUBLE ELEMENT UPPER HEATING ELEMENT LOWER HEATING ELEMENT *Note: Some Lower Hi-Temp Limit switches may have 4 terminals. Use only the 2 terminals on left. 16 BLACK Y
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Instructions for Installation (cont’d) Wiring C. Flexible metal conduit or 3 metallic tubing shall be permit- CAUTION ted for grounding if all the following conditions are met: Never use this water heater unless it is completely 1. The length in any ground return path does not exceed full of water. To prevent damage to the tank and 6 feet. heating element, the tank must be filled with water. Water must flow from the hot water faucet 2. The circuit conductors contained therein are protected befor
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Instructions for Installation (cont’d) Installation Checklist COLD HOT 1. Whether or not the element conversion is made, the model rating plate must be marked. Using a hard point ink pen, check the appropriate block within the model rating plate, which is located adjacent to the lower access panel. 2. Is the fuse or circuit breaker size correct as shown in the COLD chart in the “Product Specifications” section? HOT CONDUIT 3. Are the wires from the circuit breaker or fuse service to the TEMPERAT
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Service and Maintenance Temperature Regulation LOWER THERMOSTAT WARNING WITH HIGH LIMIT HOTTER WATER CAN SCALD: Water heaters are intended to produce hot water. Water heated to a temperature which will satisfy clothes washing, dish washing, and other sanitizing needs can scald and permanently injure you upon contact. Some people are more likely to be permanently injured by LOWER THERMOSTAT hot water than others. These include the elderly, WITHOUT HIGH LIMIT children, the infirm, or physicall
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Service and Maintenance (cont’d) Thermostat Adjustments replaced more often than an anode rod that appears to be The upper and lower thermostats have been factory set at intact. Replacement of a depleted anode rod can extend the HOT (approximately 120°F) to reduce the risk of scald injury. life of your water heater. Inspection should be conducted by a qualified service technician, and at a minimum should be The upper and lower thermostats are adjustable if a different checked annually after th
