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

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MAAG
Series Twelve
ELECTRIC
WATER HEATER Model Numbers
USER'S GUIDE __
HE21250S
HE31250S
HE21250T
HE31250T
HE31282T
®
LISTED FOR POTABLE WATER
HEATING ONLY
Io 11certification 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 SPACEHEATING
voltage no greater than 250 V.
Caution:
AWARNING J Read and Follow All
READ THE GENERAL SAFETY SECTION BEGINNING ON INSIDE I Safety Rules and
COVER AND THEN THIS ENTIRE MANUAL BEFORE INSTALLING OR Operating Instructions
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-
nation temperature and pressure relief valve certified
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
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.) [
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
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
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
other restrictions,
Must not be plugged or blocked.
Must be of material listed for hot water distribution,
i Must be installed so as to allow complete drainage
AWARNING
I
of both the temperature-pressure relief valve, and
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
and tank.
2
Safety Instructions (cont'd)
_,WARNING ]
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
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
4
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
absence of Local Codes, with the latest edition of the
trouble free service. It is strongly suggested that this new
National Electrical Code. This publication is available from
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
or by writing Underwriters Laboratories, 333 Pfingsten
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
Customer Service at 1-800-788-8899 for an authorized
your local government or public library or electric company or servicer.
by writing to U.L. above.
ANSI-American National Standards Institute
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
very important in preventing death from possible electrical
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,
anchored, or strapped to avoid falling or moving during an
contains warnings throughout the manual that you must
read and be aware 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
office of the State Architect, 400 P Street, Sacramento, CA
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
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.
5
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
WHEN SWEAT SOLDERING
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
Soft Solder
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
6 FOOT TAPE
GARDEN HOSE
-_ 3/4" WIRE BRUSH
SLOT-HEAD SCREW DRIVER PIPE
WRENCH 1/2" WIRE BRUSH
PHILLIPS SCREWDRIVER
PROPANE TORCH
ROLLOELEADEREE
PIPEDOPE SO SOLOER(SOUEEZETUBE,
ROLL OF TEFLON TAPE DRILL ROLL OF EMERY SOLDER FLUX TUBING CUTTER
(Use only on water connec- CLOTH
tions)
6
Installation Instructions
Removing the Old Water Heater
Turn "OFF" electrical supply to the water heater. (_ have the the
If you
piping
a.
copper
tO
water
heater,
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.
@ 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
drain or outdoors. Open the water U _ heater, loosen the two galvanized pipes
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-
in the water heater and speed draining, 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
II'- - [[ disconnected and ready to be removed.
The water _'passingWARNINGoutof the drain __1 t1__
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-
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 /
__1_._ heater to be much heavier than normal and this|
residue, if spilled out, could cause staining. ]
7
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
structure. For this reason, it is not advisable to install
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.
IDraJn pans are available at your local hardware
store. Such a drain pan must have a minimum diam-
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
drain. Under no circumstances isthe manufacturer or
observed. [Maytag to be held liable for any water damage in
connection with this water heater.
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. ]
2. The location selection must provide adequate clearances for
servicing and proper operation of the water heater.
VACUUMRELIEFREQUIREDBYSOMECODES
(REFERTOLOCALCODES)_ _
SHUTOFFVALVE
Typical _nstaHation _TLWT_ _ .L_-
COLDWATERINLET
CHECK ALL CONNECTIONS FOR LEAKS.
CONSULT THE LOCAL UTILITY COMPANY TO EXAM-
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,
Ill
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
RELIEFVALVE
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
plug)
_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.
8
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_'-_
temperaturesettingthatsat,sfiesyourhotwater _-_ [_ _ _>_----_ [_
needs, a means such as a mixing valve, should be
used at the hot water taps used by these people or THREADED_T [ _ _
at the water heater. Mixing valves are available at SWEATCOU-- I I THREADEDTO
plumbing supply or hardware stores. Follow manu-
( _EAT COUPUNG
tacturers instructions for installation of the valves.
Before changing the factory setting on the thermo- PiPE_ I I [ I _ PIPE
stat, read the "Temperature Regulation" section in INSULATION I_ I_ INSULATION
this manual. J 314"THREADED _ _-- 3/4"THREADED
The illustration shows the attachment of' the water piping to NIPPLE _ NIPPLE
the water heater. The water heater is equipped with % inch
water conncctions. "- -
_-]- j TEMPERATURE-
/PRESSURE RELIEF
If a water heater is installed in a closed water supply system;
r_
VALVE
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
(Do not cap or plug)
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. _'_ _
FLOOR DRAIN
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.
10
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