Maytag HE21250T, HE21240S, HE31250T, HE31250S, HE31240S User Manual

...

MAAG

Series Twelve

ELECTRIC

WATER HEATER Model Numbers

USER'S GUIDE _0°_

HE21250S HE31250S

HE21250T HE31250T HE21282T

HE31282T

LISTED FOR POTABLE WATER

HEATING ONLY

electric water heaters with capacities of 20 to NOT SUITABLE FOR

Io 11certification applies to all residential

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

voltage no greater than 250 V.

Caution:

AWARNING J Read and Follow All

COVER AND THEN THIS ENTIRE MANUAL BEFORE INSTALLING OR Operating Instructions

READ THE GENERAL SAFETY SECTION BEGINNING ON INSIDE I Safety Rules and

OPERATING THIS WATER HEATER. Before First Use of

Save this Manual for Future Reference. This Product.

Safety Instructions

_WARNING AWARNING

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 tamperature-pressures relief INJURY, OR PROPERTYDAMAGE. Refer to this manu- valve certified by a nationally recognized testing labo- al for assistance consult your local utility or call ratory that maintains periodic inspection of production

Maytac_ Customer Service at %800-788-8899 for an of listed equipment or materials, as meeting the authorized servicer for further information, requirements for Relief Valves and Automatic Gas I

Shutoff Devices for Hot Water Supply Systems, and I

the latest edition of ANSI Z21.22 and the code require- I

ments of ASME. If replaced, the valve must meet the J

AWARNING requirements of local codes, but not lessthan a combi-

HAZARD OF ELECTRICAL SHOCK! Before removing as meeting the requirements for Relief Valves and any access panels or servicing the water heater, Automatic Gas Shutoff Devices for Hot Water Supply

make sure the electrical supply to the water heater iystems, ANSI Z21.22 b_/a nationally recognized test- is turned "OFF". Failure to do this could result in ng laboratory that maintains periodic inspection of DEATH, SERIOUS BODILY INJURY, OR PROPERTY _roduction of listed equipment or materials.

DAMAGE. the valve must be marked with a maximum set pres- I

AWARNING ]

HOTTER WATER CAN SCALD: Water heaters are| intended to produce hot water. Water heated to a| Your local jurisdictional authority, while mandating the

temperature which will satisfy clothes washing,[ use of a temperature-pressure relief valve complying dish washing, and other sanitizing needs can scald| with ANSI Z21.22 and ASME, may require a valve model

and permanently injure you upon contact, Some/ different from the one furnished with the water heater, people are more likely to be permanently injured by Compliance with such local requirements must be sat-

hot water than others, These include the elderly, isfied by the installer or end user of the water heater children, the infirm, or physically/mentally handi- with a locally prescribed temperature-pressure relief

capped. If anyone using hot water in your home fits valve installed in the designated opening in the water into one of these groups or if there is a local code or heater in place of the factory furnished valve.

state law requiring a certain temperature water at For safe operation of the water heater, the relief valve the hot water tap, then you must take special pre- must not be removed from it's designated opening or

cautions. In addition to usmcj the lowest possible plugged. temperature settingthat satisfies your hot water The temperature-pressure relief valve must be

needs, a means such as a mixing valve, should be installed directly into the fitting of the water heater used at the hot water taps used by these people or designated for the relief valve. Position the valve at the water heater. Mixing valves are available at downward and provide tubing so that any discharge plumbing supply or hardware stores. Follow manu- will exit only within 6 inchesabove, or at any distance

facturers instructions for installation of the valves, below the structural floor. Be certain that no contact is

Before changing the factory setting on the thermo- made with any live electrical pert, The discharge open-

stat, read the "_remperature Regulation" section in mg must not be blocked or reduced in size under any this manual, circumstances.Excessivelength, over 30 feet, or use of

AWARNING I directly to discharge drain unlessa 6" air gap isprovid- t

INSULATING JACKETS: When installing an external ed. To prevent bodily injury, hazard to life, or property water heater insulation jacket on an electric water damage, the re ief valve must be a owed to discharge

heater: water in quantities should circumstances demand. If !

• DO NOT cover the temperature-pressure relief valve, the discharge pipe is not connected to a drain or other

• DO NOT put insulation over the access covers or suitable means, the water flow may cause property any accessareas, damage.

• DO NOT cover or remove operating instructions, The Discharge Pipe: and safety related warning labels and materials Must notbe smaller in size than the outlet pipe size affixed to the water heater, of the valve, or have any reducing couplings or

AWARNING

Do not use this appliance if any part of it has been the discharge pipe. under water. An electrical short or malfunction could Must terminate at an adequate drain.

occur. The water heater should be replaced. Must not have any valve between the relief valve

i Must be installed so as to allow complete drainage

nation temperature and pressure relief valve certified

sure not to exceed the marked hydrostatic working

)ressure of the water heater (150 Ibs./sq. in.) and a ] lischarge capacity not less than the water heater [

nput rate as shown on the model rating plate, I

iElectricheaters - watts divided by 1000 x 3415 equal I 3TU/Hr. rate.) [

more than four elbows can cause restriction and reduce the discharge capacity of the valve.

No valve or other obstruction isto be placed between the re ief vave and the tank Do not connect tubing

other restrictions, Must not be plugged or blocked.

Must be of material listed for hot water distribution, of both the temperature-pressure relief valve, and

and tank.

Safety Instructions (cont'd)

WATER HEATERS_OR 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 NOTI

use this water heater with any voltage other than I the one shown on the model rating plate. Failure to

use the correct voltage can cause problems which I can result in DEATH, SERIOUS BODILY INJURY, OR I PROPERTY DAMAGE. If you have any questions or J

doubts consult your electric company. J

_,WARNING ]

ACAUTION

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. Forthis 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 1% inches greater than the water heater diameter and must be piped to an adequate

drain. Under no circumstances isthe 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 ............................................................................................................................s

Product Specifications .............................................................................................................................s

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

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

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

Instructions for Installation ........................................................................................................7-16

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

Locating the New 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

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

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

Thermos tats ........................................................................................................................................................................ 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 ............................................................................................................................................................. 24

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

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

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

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

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

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

Customer Information

Thank Youfor purchasing a Maytag water heater. ° The installation must conform with the instructions in this

Properly installed and maintained, it should give you years of manual; electric company rules; and Local Codes, or in the 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, your local government or punic library or electric company

Abbreviations Found In This Instruction Manual Road, Northbrook, IL 60062.

U.L.- Underwriters Laboratories, 333 Pfingsten Rd., Northbrook, IL 60062 • If after reading this manual you have any questions or do

National Electrical Code-This publication is available from not understand aW portion of the instructions, call Maytag your local government or public library or electric company or servicer.

by writing to U.L. above. ANSI-American National Standards Institute

absence of Local Codes, with the latest edition of the

National Electrical Code. This publication is available from

or by writing Underwriters Laboratories, 333 Pfingsten

Customer Service at 1-800-788-8899 for an authorized

• Carefully plan the place where you are going to put the

• Read the "Safety Instructions" section, pages 2 and 3 of this water heater. Correct electrical wiring and connections are manual first and then the entire manual carefully. If you shock and fires.

don't follow the safety rules, the water heater will not oper-

ate properly. It could cause DEATH, SERIOUS BODILY Examine the location to ensure the water heater complies

INJURY AND/OR PROPERTY DAMAGE. with the "Locating the New Water Heater" section. This manual contains instructions for the installation, oper-

ation, and maintenance of this electric water heater. It also • For California installation this water heater must be braced, contains warnings throughout the manual that you must

read and be aware o£ All warnings and all instructions are earthquake. See instructions for correct installation proce- essential to the proper operation of the water heater and dures. Instructions may be obtained from the California

your safety. Since we cannot put everything on the first few 95814. pages, READ THIS ENTIRE MANUAL BEFORE

ATTEMPTING TO INSTALL OR OPERATE THE WATER HEATER. • Massachusetts Code requires this water heater to be

very important in preventing death from possible electrical

anchored, or strapped to avoid falling or moving during an

office of the State Architect, 400 P Street, Sacramento, CA

installed in accordance with Massachusetts 248-CMR 2.00:

State Plumbing Code and 248-CMR 5.00.

Product Specifications

Model HE21240S HE21250S HE21250T HE21282T

HE31240S HE31250S HE31250T HE31282T

Tank Capacity

In Gal (Liters) 40 50 50 80

Element Upper 3800 3800 3800 3800 Wattage

.,240voi,Lower380015500380015 003800I 38®I 5500

Recovery Rate

In Gals Upper 17.3 17.3 17.3 17.3 Per Hr.

@ 90OFRise Lower 17.3 25 17.3 25 17.3 25 17.3 25

Diameter 22" 24" 22" 26.25"

Height 48.5" 48" 58.5" 62"

Maximum Fuse or

Circuit Breaker Size 20 30 20 30 20 30 20 30

Minimum

Wire Size (Gauge) 12 10 12 10 12 10 12 10

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

electrical code.

Accessoriesand 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, 24" DIAMETER (PART NUMBER 66001105) FOR

EXPANSION TANKS FOR THERMAL EXPANSION WATER HEATERS HAVING A DIAMETER 22" OR CONDITIONS AVAILABLE IN 2 GALLON (PART LESS AND AVAILABLE IN 28" DIAMETER (PART

NUMBER 66001013) AND S GALLON (PART NUMBER 66001012) FOR WATER HEATERS NUMBER 66001014) CAPACITY

HAVING A DIAMETER 26.2S" OR LESS

TOOLS ADDITIONAL TOOLS NEEDED

You may or may not need all of these tools, depending on your ty_0eof installation. These tools can be purchased at your local • Tubing Cutters or Hacksaw

lVtaytag store. • Propane Torch

• Pipe Wrenches (2) 14" • Solder Flux

• Screwdriver • Emery Cloth

• 6 Foot Tape of Folding Rule • Wire Brushes

• Garden Hose

• Drill

• Pipe dope or Teflon Tape

GARDEN HOSE

SLOT-HEAD SCREW DRIVER PIPE

PHILLIPS SCREWDRIVER

6 FOOT TAPE

-_ 3/4" WIRE BRUSH

WRENCH 1/2" WIRE BRUSH

PIPEDOPE SO SOLOER(SOUEEZETUBE,

ROLL OF TEFLON TAPE DRILL ROLL OF EMERY SOLDER FLUX TUBING CUTTER

(Use only on water connec- CLOTH

tions)

WHEN SWEAT SOLDERING

• Soft Solder

ROLLOELEADEREE

PROPANE TORCH

Installation Instructions

Removing the Old Water Heater

Turn "OFF" electrical supply to the water heater. (_ have the the

@__ mately four inches away from where they connect to

@ Turn "OFF" the water supply to the , ]_ @

water heater at the water shutoff valve _,_= I ] or water meter.

Attach a hose to the water heater drain valve and put the other end in a floor _[_-- --- I_ ('_)b. If you have galvanized pipe to the water

If you copper water pipes can be cut with a hacksaw approxi-

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.

copper

piping

water

heater,

two

heater drain valve. Open a nearby hot with a pipe wrench at the union in each

water faucet which will relieve pressure line. Also disconnect the piping remain-

drain or outdoors. Open the water U _ heater, loosen the two galvanized pipes in the water heater and speed draining, ing to the water heater. These pieces

should be saved since they may be needed

Disconnect the temperature-pressure relief valve drain line. When the water

heater is drained, disconnect the hose from the drain valve. Close the drain

__ when reconnecting the new water heater.

II'- - [[ disconnected and ready to be removed.

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.

Check again to make sure the electrical supply is turned

"OFF" to the water heater. Then disconnect the electri-

The water _'passingWARNINGoutof the drain __1 t1__

cal supply connection from the water heater junction

box.

Mineral buildup or sediment may have accumulated ] in the old water heater. This causes the water /

valve. The water heater is now completely

__1_._ 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

_CAUTION

Heater WATER HEATERS EVENTUALLY LEAK: Installation of

the water heater must be accomplished in such a

Yon should carefully choose an indoor location for the new manner that if the tank or any connections should water heater, because the placement is a very important con- _leak, the flow of water will not cause damage to the

siderafion for the safetyof the occupantsin the building and the water heater in an attic or upper floor. When

for the most economical use of the appliance. This water such locations cannot be avoided, a suitab e drain heater is not intended for outdoor installation, pan should be installed under the water heater.

Whether replacing an old water heater or putting the water eter of at least 13/4inches greater than the water

heater in a new location, the following critical points must be heater diameter and must be piped to an adequate observed. [Maytag to be held liable for any water damage in

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

centralized with the water piping system as possible. This A CAUTION water heater, as well as all water heaters, will eventually INSTALLATIONIN RESIDENTIAL GARAGES: The water ] leak, Do not install without adequatedrainage provisions heater must be located and/or protected so it is not I

where water flow will cause damage, subject to phys ca damage by a mov ng veh cle. ]

structure. For this reason, it is not advisable to install

IDraJn pans are available at your local hardware

store. Such a drain pan must have a minimum diam-

drain. Under no circumstances isthe manufacturer or

connection with this water heater.

2. The location selection must provide adequate clearances for servicing and proper operation of the water heater.

VACUUMRELIEFREQUIREDBYSOMECODES (REFERTOLOCALCODES)_ _

SHUTOFFVALVE

COLDWATERINLET

CHECK ALL CONNECTIONS FOR LEAKS. CONSULT THE LOCAL UTILITY COMPANY TO EXAM-

Typical _nstaHation _TLWT_ _ .L_- INE INSTALLATION FOR PROPRIETY AND SAFETY. _ _ ELBOW _=_

HOTTER WATER CAN SCALD: Water heaters are TEMPERED\_'i_'/' _ _ , intended to produce hot water. Water heated to a WATER _ _/_ I- [

temperature which will satisfy clothes washing, OUTLET*MIXINGVALVE _,,_q_ _/" PIPEINSULATION

dish washing, and other sanitizing needs can scald PIPEINSULATION/ _ _/

and permanently injure you upon contact. Some people are more likely to be permanently injured by _ _

hot water than others. These include the elderly, children, the infirm, or physically/mentally handi- capped. If anyone using hot water in your home fits , I' _i TEMPERATURE- into one of these groups or if there is a local code or PRESSURE

state law requiring a certain temperature water at

the hot water tap, then you must take special pre- I

cautions. In addition to using the lowest possible

temperature settingthat 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 i _ -- DISCHARGEPIPE

at the water heater. Mixing valves are available at , (Donotcapor

_alUmbing supply or hardware stores, Follow manu-

cturers instructions for installation of the valves. I

Before changing the factory setting on the thermo- stat, read the "q'emperature Regulation" section in

this manual.

Ill

RELIEFVALVE

plug)

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.

&,WARNING

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 equtva-

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.

® Maytag is a Trademarkof MaytagCorporatiooand

is usedunder Uconseto StateIndusb_ies,Inc

NOTE: Whether or not the element conversion is made the

model rating plate must be marked. Using ahard point ink pen, check the appropriate block within the model rating plate, which is located adjacent to the lower access panel.

Instructions for Installation (cont'd)

Water Piping

A WARNING NOTE:Yourwaterheateris superinsulatedtominimize

HOTTER WATER CAN SCALD: Water heaters a re heat loss from the tank. Further reduction in heat loss can

intended to produce hot water. Water heated to a be accomplished by insulating the hot waterlines from the

temperature which will satisfy clothes washing, water heater. 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 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 HOTOUTLETTO SHUT-OFF COLDINLET the hot water tap, then you must take special p.re- HOUSE VALVE _ WATERLINE

cautions. In addition to usincj the lowest possible '_ I1_] I_'-_

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

temperaturesettingthatsat,sfiesyourhotwater _-_ [_ _ _>_----_ [_ at the water heater. Mixing valves are available at SWEATCOU-- I I THREADEDTO

plumbing supply or hardware stores. Follow manu- tacturers instructions for installation of the valves.

Before changing the factory setting on the thermo- PiPE_ I I [ I _ PIPE

used at the hot water taps used by these people or THREADED_T [ _ _

stat, read the "Temperature Regulation" section in INSULATION I_ I_ INSULATION

( _EAT COUPUNG

this manual. J 314"THREADED _ _-- 3/4"THREADED

the water heater. The water heater is equipped with % inch

The illustration shows the attachment of' the water piping to NIPPLE _ NIPPLE

water conncctions. "- -

If a water heater is installed in a closed water supply system;

_-]- j TEMPERATURE-

such as one having a back-flow preventer, check valve, water '5 meter with a check valve, etc. in the cold water supply; means shall be provided 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. --DISCHARGEPIPE

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 -- "AIR GAP

is marked hot. Connect the hot water pipe to the hot water outlet of the water heater. _'_ _

/PRESSURE RELIEF

(Do not cap or plug)

FLOOR DRAIN

VALVE

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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