Maytag HE21250S User Manual

0 MAYTAG

ELECTRIC

WATER HEATER

USER'S GUIDE

EFF\C\ENC'f RATING

ama

GAMA certification applies to all residential electric water heaters with capacities of 20 to

120 Gallons. Input rating of 12 Kw or less at a

voltage no greater than 250 V.

Model Numbers

HE21240S HE31240S HE21250S HE31250S HE21250T HE31250T HE21282T HE31282T

FOR POTABLE WATER HEATING ONLY

NOT SUITABLE FOR SPACE HEATING

A WARNING

READ THE GENERAL SAFETY SECTION BEGINNING ON INSIDE COVER AND THEN THIS ENTIRE MANUAL BEFORE INSTALLING OR OPERATING THIS WATER HEATER.

Save this Manual for Future Reference.

Caution; Read and Follow All Safety Rules and Operating Instructions Before First Use of

This Product.

Safety Instructions

AWARNING

Improper installation, adjustment, alteration, service or maintenance can cause DEATH, SERIOUS BODILY INJURY, OR PROPERTY DAMAGE. Refer to this manu al for assistance consult your local utility or call Maytag Customer Service at 1-800-788-8899 for an autnorized servicer for further information.

AWARNING

HAZARD OF ELECTRICAL SHOCK! Before removing any access panels or servicing the water heater, make sure the electrical supply to the water heater is turned "OFF". Failure to do this could result in DEATH, SERIOUS BODILY INJURY, OR PROPERTY DAMAGE.

AWARNING

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 not water than others. These include the elderly, children, the infirm, or physically/mentally handi capped. If anyone using not water in your home fits into one of tnese groups or if there is a local code or state law requiring a certain temperature water at the hot water tap, then you must take special pre cautions. In addition to using the lowest possible temperature setting that satisfies your hot water needs, a means such as a mixing valve, should be used at the hot water taps used by these people or at the water heater. Mixing valves are available at plumbing supply or hardware stores. Follow manu facturers instructions for installation of the valves.

Before changing the factory setting on the thermo

stat, read the "Temperature Regulation" section in this manual.

AWARNING

INSULATING JACKETS: When installing an external water heater insulation jacket on an electric water heater:

• DO NOT cover the temperature-pressure relief valve.

• DO NOT put insulation over the access covers or

any access areas.

• DO NOT cover or remove operating instructions, and safety related warning labels and materials affixed to the water heater.

AWARNING

Do not use this appliance if any part of it has been under water. An electrical short or malfunction could occur. The water heater should be replaced.

AWARNING

At the time of manufacture this water heater was pro vided with a combination temperature-pressures relief valve certified by a nationally recognized testing labo

ratory that maintains periodic inspection of production of listed equipment or materials, as meeting the requirements for Relief Valves and Automatic Gas Shutoff Devices for Hot Water Supply Systems, and the latest edition of ANSI Z21.22 and the code require ments of ASME. If replaced, the valve must meet the

requirements of local codes, but not less than a combi

nation temperature and pressure relief valve certified as meeting the requirements for Relief Valves and Automatic Gas Shutoff Devices for Hot Water Supply

Systems, ANSI Z21.22 by a nationally recognized test ing laboratory that maintains periodic inspection of

production of listed equipment or materials. The valve must be marked with a maximum set pres sure not to exceed the marked hydrostatic working

pressure of the water heater (150 Ibs./sq. in.) and a discharge capacity not less than the water heater

input rate as shown on the model rating plate. (Efectric heaters - watts divided by 1000 x 3415 equal

BTU/Hr. rate.) Your local jurisdictional authority, while mandating the

use of a temperature-pressure relief valve complying with ANSI Z21.22 and ASME, may require a valve model different from the one furnished with the water heater. Compliance with such local requirements must be sat

isfied by the installer or end user of the water heater with a locally prescribed temperature-pressure relief valve installed in the designated opening in the water

heater in place of the factory furnished valve.

For safe operation of the water heater, the relief valve

must not be removed from it's designated opening or

plugged. The temperature-pressure relief valve must be

installed directly into the fitting of the water heater designated for the relief valve. Position the valve

downward and provide tubing so that any discharge will exit only within 6 inches above, or at any distance

below the structural floor. Be certain that no contact is

made with any live electrical part. The discharge open

ing must not be blocked or reduced in size under any circumstances. Excessive length, over 30 feet, or use of

more than four elbows can cause restriction and

reduce the discharge capacity of the valve.

No valve or other obstruction is to be placed between the relief valve and the tank. Do not connect tubing directly to discharge drain unless a 6" air gap is provid

ed. To prevent bodily injury, hazard to life, or property

damage, the relief valve must be allowed to discharge water in quantities should circumstances demand. If the discharge pipe is not connected to a drain or other suitable means, the water flow may cause property damage. The Discharge Pipe:

• Must not be smaller in size than the outlet pipe size of the valve, or have any reducing couplings or other restrictions.

• Must not be plugged or blocked.

• Must be of material listed for hot water distribution.

• Must be installed so as to allow complete drainage of both the temperature-pressure relief valve, and the discharge pipe.

• Must terminate at an adequate drain.

• Must not have any valve between the relief valve and tank.

Safety Instructions (cont'd)

AWARNING

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 company.

A CAUTION

WATER HEATERS EVENTUALLY LEAK: Installation of the water heater must be accomplished in such a manner that if the tank or any connections should leak, the flow of water will not cause damage to the structure. For this reason, it is not advisable to install the water heater in an attic or upper floor. When such locations cannot be avoided, a suitable drain pan should be installed under the water heater. Drain pans are available at your local hardware store. Such a drain pan must have a minimum diam eter of at least VA inches greater than the water heater diameter and must be piped to an adequate drain. Under no circumstances is the manufacturer or Maytag to be held liable for any water damage in connection with this water heater.

Table of Contents

Safety Instructions....................................................................................................................................................2-3

Table of Contents............................................................................................................................................................4

Customer Information......................................................................................................................................... 5

Product Specifications

................................................................

Accessories and Tools Needed......................................................6

Accessories............................................................................................................................................................................................... 6

Tools...........................................................................................................................................................................................................6

Instructions for Installation

Removing the Old Water Heater.............................................................................................................................................................7

Locating the Neiv Water Heater.......................................................................................................................................................... 8

Typical Installation....................................................................................................................................................................................8

The Convertible Lower Element..............................................................................................................................................................9

Water Piping............................................................................................................................................................................................10

Temperature-Pressure Relief Valve..................................................................................................................................................... 11

Filling the Water Heater.........................................................................................................................................................................12

Converting the Lower Element.........................................................................................................................................................12-14

Wiring Diagrams..................................................................................................................................................................................... 15

Wiring......................................................................................................................................................................................................16

Installation Checklist............................................................................................................................................................................. 17

.......................................................

716

Service and Maintenance.........................................................18-23

Temperature Regulation..........................................................................................................................................................................18

Thermostats............................................................................................................................................................................................ 18

Thermostat Settings............................................................................................................................................................................... 18

Thermostat Adjustment........................................................................................................................................................................ 19

Temperature-Pressure Relief Valve Operation......................................................................................................................................19

Draining................................................................................................................................................................................................... 20

Element Cleaning and Replacement.................................................................................................................................................20-23

Drain Valve Washer Replacement................................................................................................................................................. -...23

Service................................................................................................................................................................................................. ...23

Troubleshooting........................................................................24-26

Start Up Conditions.................................................................................................................................................................................24

Thermal Expansion........................................................................................................................................................................... 24

Strange Sounds...................................................................................................................................................................................24

Operational Conditions...........................................................................................................................................................................24

Smelly Water......................................................................................................................................................................................24

Air in Hot Water Faucets...................................................................................................................................................................24

Rumbling Noise

High Temperature Shut Off System.............................................................................................................................................24,25

Not Enough Hot Water..................................................................................................................................................................... 25

Water is Too Hot................................................................................................................................................................................25

Leakage Checkpoints......................................................................................................................................................................... 26

.................................................................................................................................................................................24

Repair Parts List........................................................................28-31

Warranty......................................................................................................................................................................................32

Customer Information

Thank You for purchasing a Ma}rtag water heater.

Properly installed and maintained, it should give you years of trouble free service. It is strongly suggested that this new water heater be professionally installed, call Maytag Customer Service at 1-800-788-8899 for recommended installers.

Abbreviations Found In This Instruction Manual

U.L.- Underwriters Laboratories, 333 Pfingsten Rd.,

Northbrook, IL 60062 National Electrical Code-This publication is available from your local government or public library or electric company or by writing to U.L. above. ANSI-American National Standards Institute

• Read the “Safety Instructions” section, pages 2 and 3 of this manual first and then the entire manual carefrilly. If you don’t foUow the safety rules, the water heater will not oper ate properly. It could cause DEATH, SERIOUS BODILY INJURY AND/OR PROPERTY DAMAGE.

This manual contains instructions for the installation, oper

ation, and maintenance of this electric water heater. It also

contains warnings throughout the manual that you must

read and be aware of All warnings and all instructions are

essential to the proper operation of the water heater and your safety. Since we cannot put everything on the first few pages, READ THIS ENTIRE MANUAL BEFORE ATTEMPTING TO INSTALL OR OPERATE THE WATER HEATER.

The installation must conform with the instructions in this manual; electric company rules; and Local Codes, or in the

absence of Local Codes, with the latest edition of the

National Electrical Code. This publication is available from your local government or public library or electric company

or by writing Underwriters Laboratories, 333 Pfingsten Road, Northbrook, IL 60062.

If after reading this manual you have any questions or do not understand any portion of the instructions, call Maytag Customer Service at 1-800-788-8899 for an authorized servicer.

CarefiiUy plan the place where you are going to put the

water heater. Correct electrical wiring and connections are

very important in preventing death from possible electrical shock and fires. Examine the location to ensure the water heater compHes

with the “Locating the New Water Heater” section.

For California installation this water heater must be braced, anchored, or strapped to avoid falling or moving during an earthquake. See instructions for correct installation proce dures. Instructions may be obtained from the California office of the State Architect, 400 P Street, Sacramento, CA

95814.

Massachusetts Code requires this water heater to be installed in accordance vrith Massachusetts 248-CMR 2.00: State Plumbing Code and 248-CMR 5.00.

Product Specifications

Mtnlel

Tank Capacity

In Gal (Liters) 40 50

Element Upper

at 240Volt Lower

Recovery Rate

InGds UPP*''' Per Hr.

@ TOT Rise J-ower

Diameter

Height

Maximam Fuse or

Circuit Breaker Size 20

Minimum

Wire Size (Gauge)

*Wiring size based on standard 60°C copper wire. If distance from fuse box to water heater is more than 90 feet, refer to your local

electrical code.

HE21240S HE31240S

3800 3800 3800 3800

3800

17.3 1 25 17.3 25

5500 3800 5500 3800 5500 3800 5500

17.3 17.3 17.3 17.3

22" 24" 22" 26.25"

48.5" 48"

10 12 10

HE212S0S HE31250S

20 30 20

HE21250T HE31250T

17,3 25

58.5"

HE21282T HE31282T

17.3

62"

20 30

12 10

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 A DIAMETER 20" OR LESS,

EXPANSION TANKS FOR THERMAL EXPANSION CONDITIONS AVAILABLE IN 2 GALLON (PART NUMBER B6001013> AND 5 GALLON (PART NUMBER 65001014) CAPACITY

24" DIAMETER (PART NUMBER 66001105) FOR WATER HEATERS HAVING A DIAMETER 22" OR LESS AND AVAILABLE IN 28" DIAMETER (PART NUMBER 66001012) FOR WATER HEATERS HAVING A DIAMETER 26.25" OR LESS

Tools

You may or may not need all of these tools, depending on your type of installation. These tools can be purchased at your local Maytag store.

• Pipe Wrenches (2) 14"

• Screwdriver

• 6 Foot Tape of Folding Rule

• Garden Hose

• Drill

• Pipe dope or Teflon Tape

GARDEN HOSE

PIPE DOPE

(SQUEEZE TUBE)

SLOT-HEAD SCREW DRIVER

PHILLIPS SCREWDRIVER

6 FOOT TAPE

ROLL OF TEFLON TAPE

(Use only on water connec

tions)

PIPE

WRENCH

DRILL

ADDITIONAL TOOLS NEEDED WHEN SWEAT SOLDERING

• Tubing Cutters or Hacksaw

• Propane Torch

• Soft Solder

• Solder Flux

• Emery Cloth

• Wire Brushes

HACKSAW

3/4" WIRE BRUSH

1/2" WIRE BRUSH

ROLL OF LEAD FREE

SOFT SOLDER

ROLL OF EMERY

CLOTH

SOLDER FLUX TUBING CUTTER

PROPANE TORCH

Installation Instructions

Removing the Old Water Heater

^^^Turn “OFF” electrical supply to the water heater.

Turn “OFF” the water supply to the

water heater at the water shutoff valve or water meter.

/TLLK

Attach a hose to the water heater drain

valve and put the other end in a floor drain or outdoors. Open the water heater drain valve. Open a nearhy hot water faucet which will relieve pressure in the water heater and speed draining.

a. If you have copper piping to the water heater, the two

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

nect the hose from the drain valve. Close the drain valve. The water heater is now completely disconnect ed and ready to be removed.

b. If you have galvanized pipe to the water

heater, loosen the two galvanized pipes with a pipe wrench at the union in each line. Also disconnect the piping remain

ing to the water heater. These pieces should be saved since they may be needed when reconnecting the new water heater. Disconnect the temperature-pressure relief valve drain line. When the water heater is drained, disconnect the hose from the drain valve. Close the drain valve. The water heater is now completely disconnected and ready to be removed.

A WARNING

The water passing out of the drain valve may be extremely hot. To

avoid being scalded, make sure all connections are tight and that the

water flow is directed away from any person.

^4^ Check again to make sure the electrical supply is turned

“OFF” to the water heater. Then disconnect the electri cal supply connection from the water heater junction box.

A CAUTION

Mineral buildup or sediment may have accumulated in the old water heater. This causes the water heater to be much heavier than normal and this residue, if spilled out, could cause staining.

Instructions for Installation (cont'd)

Locating The New Water Heater

You should carefully choose an indoor location for the new water heater, because the placement is a very important con'

sidération for the safety of the occupants in the building and for the most economical use of the appliance. This water heater is not intended for outdoor installation.

Whether replacing an old water heater or putting the water

heater in a new location, the following critical points must be observed,

1, The location selected should be indoors as close to and as

centralized with the water piping system as possible. This water heater, as well as all water heaters, will eventually leak. Do not install without adequate drainage provisions where water flow will cause damage.

A CAUTION

WATER HEATERS EVENTUALLY LEAK: Installation of

the water heater must be accomplished in such a

manner that if the tank or any connections should

leak, the flow of water will not cause damage to the structure. For this reason, it is not advisable to install the water heater in an attic or upper floor. When such locations cannot be avoided, a suitable drain

pan should be installed under the water heater.

Drain pans are available at your local hardware store. Such a drain pan must have a minimum diam>

eter of at least IV4 inches greater than the water

heater diameter and must be piped to an adequate

drain. Under no circumstances is the manufacturer or

Maytag to be held liable for any water damage in connection with this water heater.

A CAUTION

INSTALLATION IN RESIDENTIAL GARAGES: The water

heater must be located and/or protected so it is not subject to physical damage by a moving vehicle.

2, The location selection must provide adequate clearances for

servicing and proper operation of the water heater.

VACUUM RELIEF REQUIRED BY SOME CODES

Typical Installation

CHECK ALL CONNECTIONS FOR LEAKS. CONSULT THE LOCAL UTILITY COMPANY TO EXAM INE INSTALLATION FOR PROPRIETY AND SAFETY.

*AWARNING

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

not water than others. These include the elderly, children, the infirm, or physically/mentaily handi capped. If anyone using hot water in your home fits

into one of these groups or if there is a local code or state law requiring a certain temperature water at the hot water tap, then you must take special pre

cautions. In addition to usin^ the lowest possible temperature setting that satisfies your hot water

needs, a means such as a mixing valve, should be

used at the hot water taps used by these people or at the water heater. Mixing valves are available at

plumbing suppiy or hardware stores. Follow manu facturers instructions for installation of the valves.

Before changing the factory setting on the thermo

stat, read the 'Temperature Regulation" section in this manual.

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 Customer Service at 1

800-788-8899 for an authorized servicer.

AWARNING

Before making the conversion to 5500 watts, check the (1) power supply...must be 240 volts, (2) wiring...10 gauge AWG @ Type TW, 60°C or equiva lent, and (3) Circuit breakers or fusing...capable of

30 amp loading. Also, the installation must conform

with this manual, local codes and electric utility

rules. Failure to comply can result in DEATH, SERI

OUS BODILY INJURY, OR PROPERTY DAMAGE.

___________

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SEE CONVERSION

INSTRUCTION

NOTE: 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 die model rating plate, which is located adjacent to the lower access panel.

Instructions for Installation (cont'd)

Water Piping

AWARNING

the hot water tap, then you must take special pre

cautions. In addition to usin^ the lowest possible temperature setting that satisfies your hot water needs, a means sucn as a mixing valve, should be used at the hot water taps used by these people or at the water heater. Mixing valves are available at plumbing supply or hardware stores. Follow manu

facturers instructions for installation of the valves.

Before changing the factory setting on the thermo stat, read the "Temperature Regulation” section in this manual.

The illustration shows the attachment of the water piping to the water heater. The water heater is equipped with V4 inch

water connections.

NOTE: Your water heater is super insulated to minimize heat loss from the tank. Further reduction in heat loss can be accomplished by insulating the hot water lines from the

water heater.

HOT OUTLET TO

HOUSE

3/4" THREADED

NIPPLE

SHUT-OFF COLD INLET

If a water heater is installed in a closed water supply system; such as one having a back-flow preventer, check valve, water meter with a check valve, etc. in the cold water supply; means shall be prowded to control thermal expansion. Contact the local utility or call Maytag Customer Service at 1-800-788-8899 for an authorized servicer on how to con trol this situation.

NOTE: If using copper tubing, solder tubing to an adapter before attaching the adaptor to the cold water inlet connec tion. Do not solder the cold water supply line directly to the

cold water inlet. It will harm the dip tube and damage the tank.

1. Look at the top cover of the water heater. The water outlet is marked hot. Connect the hot water pipe to the hot water outlet of the water heater.

2. Look at the top cover of the water heater. The cold water inlet is marked cold. Connect the cold water pipe to the cold water inlet of the water heater.

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