ries Nine
GAS WATER HEATER
USER'SGUIDE
For Your Safety
AN ODORANTISADDEDTO THEGASUSEDBYTHIS Model Numbers
WATER HEATER HN4930T HN5930T
HP4930T HP5930T
WARNING:If the information in these instructions are not fol- HN49405 HN5940S
lowed exactly, a fire or explosion may result,causingproperty HP49405 HP5940S
HN4940T HN5940T
damage,personalinjuryordeath. HP4940T HP5940T
-Do not storeor usegasolineor otherflammablevaporsand liq- HN4950S HN5950S
uidsinthevicinityof thisoranyotherappliance. HP4950S HP5950S
HN4950T HN5950T
-WHATTODOIFYOUSMELLGAS HP4950T HP5950T
• Donottryto lightanyappliance. HN4975S HN59755
• Do not touch anyelectricalswitch;do not useany phone in HP4975S HP5975S
yourbuilding.
• Immediatelycallyour gas supplierfrom a neighbor'sphone.
Followthegassupplier'sinstructions.
• If youcannot reachyourgassupplier,callthefiredepartment.
-Installationandservicemustbeperformedbya qualifiedinstaller,
serviceagencyorthe gassupplier.
FOR POTABLE WATER
•,WARNING HEATING ONLY
Improper installation, adjustment, alteration, service or mainte-
nance can cause DEATH, SERIOUS BODILY INJURY, OR PROPERTY NOT SUITABLE FOR
DAMAGE.Referto this manual for assistanceorconsultthe local SPACE HEATING
gasutility for further information.
NOT FOR USE IN
AWARNING t MANUFACTURED
Flammable vapors may be drawn by air currents from other (MOBILE) HOMES
areas of the structure to this appliance.
Caution:
AWARNING Read and Follow All
READ THE GENERAL SAFETY SECTION BEGINNING ON INSIDE Safety Rules and
COVER AND THEN THIS ENTIRE MANUAL BEFORE INSTALLING Operating Instructions
OROPERATINGTHISWATERHEATER. Before First Use of
Save this Manual for Future Reference. This Product.
Safety Instructions
•,WARNING [ AWARNING
Improper installation, adjustment, alteration, service IAt the time of manufacture this water heater was pro-
or maintenance can cause DEATH, SERIOUS BODILY Ivided with a combination temperature-pressures relief
INJURY, OR PROPERTYDAMAGE. Refer to this manu- Ivalve certified by a nationally recognized testing labo-
al for assistance consult your local gas utility or call I ratory that maintains periodic inspection of production
Mayta_ Customer Service at 1-800-788-8899 for an Iof listed equipment or materials, as meeting the
authonzed servicer for further information. ]requirements for Relief Valves and Automatic Gas
l Shutoff Devices for Hot Water Supply Systems, and
Jthe latest edition of ANSI Z21.22 and the code require-
I ments of ASME. If replaced, the valve must meet the
AWARNING I requirements of local codes, but not lessthan a combi-
WATER HEATERS EQUIPPED FOR ONE TYPE GAS I nation temperature and pressure relief valve certified
IONLY: This water heater is equipped for one type las meeting the requirements for Relief Valves and
gas only. Check the model rating plate near the gas IAutomatic Gas Shutoff Devices for Hot Water Supply I
control valve for the correct gas. DO NOT USE THIS I Systems, ANSI Z21.22 by a nationally recognized test- I
WATER HEATER WITH ANY GAS OTHER THAN THE Iing laboratory that maintains periodic inspection of
ONE SHOWN ON THE MODEL RATING PLATE.Failure I production of listed equipment or materials.
to use the correct gas can cause problems which can | The valve must be marked with a maximum set pres-
result in DEATH, SERIOUS BODILY INJURY, OR PROP- sure not to exceed the marked hydrostatic working
ERTY DAMAGE. If you have any questions or doubts pressure of the water heater (150 Ibs./sq. in.) and a
consult your gas supplier or local utility, discharge capacity not less than the water heater
input rate as shown on the model rating plate.
(Electric heaters - watts divided by 1000 x 3415 equal
BTU/Hr. rate.)
I _ Your local jurisdictional authority, while mandating the
1
AWARNING
INSTALLATIONS IN AREAS WHERE FLAMMABLE LIQ-| use of a temperature-pressure relief valve complying
UIDS (VAPORS)ARE LIKELYTO BEPRESENTOR STORED[ with ANSI Z21.22 and ASME, may require a valve model
(GARAGES, STORAGE, AND UTILITY AREAS, ETC): I different from the one furnished with the water heater.
Flammable liquids (such as gasoline, solvents, propane I Compliance with suchlocal requirements must be sat°
(LP) or butane, etc.), all of which emit flammable|
isfied by the installer or end user of the water heater
vapors, may be improperly stored or used in such with a locally prescribed temperature-pressure relief
areas. The gas water heater pilot light or main burner valve installed in the designated opening in the water
can ignite suchvapors. The resulting flashback and fire heater in place of the factory furnished valve.
can cause death or serious burns to anyone in the For safe operation of the water heater, the relief valve
must not be removed from it's designated opening or
area, as well as property damage,
If installation in such areas is your only option, then plugged.
the installation must be accomplished in a way that The temperature-pressure relief valve must be
the pilot flame and main burner flame are elevated installed directly into the fitting of the water heater
from the floor at least 18 inches.While this may reduce designated for the relief valve. Position the valve
the chances of flammable vapors from a floor spill downward and provide tubing so that any discharge
being ignited, gasoline and other flammable sub- will exit only within 6 inches above, or at any distance
stances should never be stored or used in the same below the structural floor. Be certain that no contact is
room or area containing a gas water heater or other made with any live electrical part. The discharge open-
open flame or spark producing appliance. Jngmust not be blocked or reduced in size under any
NOTE: Flammable vapors may be drawn by air currents circumstances.Excessivelength, over 30 feet, or use of
from other areas of the structure to the appliance, 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
_,WARNING directly to discharge drain unless a 6_ air gap isprovid-
If this water heater will be used in beauty shops, ed. To prevent bodily injury, hazard to life, or property
barber shops, cleaning establishments, or self-ser- damage, the relief valve must be allowed to discharge
vice laundries with dry cleaning equipment, it is water in quantities should circumstances demand. If
imperative that the water heater or water heaters the discharge pipe is not connected to a drain or other
be installed so that combustion and ventilation air suitable means, the water flow may cause property
be taken from outside these areas. Refer to the damage.
ULocating The New Water Heater" section of this The Discharge Pipe:
manual and also the latest edition of the National • Must notbe smaller in size than the outlet pipe size
Fuel Gas Code, ANSI Z223.1, also referred to as NFPA of the valve, or have any reducing couplings or
54 for specificsprovided concerning air required, 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
of both the temperature-pressure relief valve, and
/A fire can start if_materials such as the discharge pipe.
/clothing, cleaning materials, or flammable liquids • Must terminate at an adequate drain.
[are placed against or next to the water heater. • Must not have any valve between the relief valve
and tank.
2
Safety Instructions
AWARNING AWARNING
A gas water heater cannot operate properly without This water heater must not be installed directly on
the correct amount of air for combustion. Do not carpeting. Carpeting must be protected by a metal
install in a confined area such a closet, unless you or wood panel beneath the appliance extending
provide air as shown in the ULocating The New beyond the full width and depth of the appliance by
Water Heater" section. Never obstruct the flow of at least 3 inches (76.2mm) in any direction, or if the
ventilation air. If you have any doubts or questions appliance is installed in an alcove or closet, the
at all, call your gas company. Failure to provide the entire floor must be covered by the panel. Failure to
proper amount of combustion air can result in a fire heed this warning may result in a fire hazard.
or explosion and can cause DEATH, SERIOUS BODILY
INJURY,OR PROPERTY DAMAGE.
_WARNING
AWARNING VENT DAMPERS - Any vent damper, whether it is
HOTTER WATER CAN SCALD: Water heaters are operated thermally or otherwise must be removed if
intended to produce hot water. Water heated to a its use inhibits proper drafting of the water heater.
temperature which will satisfy clothes washing, dish Thermally Operated Vent Dampers: Gas-fired water
washing, and other sanitizing needs can scald and heaters having thermal efficiency in excess of 80%
permanently injure you upon contact. Some people may produce a relatively low flue gas temperature.
are more likely to be permanently injured by hot Such temperatures may not be high enough to prop-
water than others. These include the elderly, children, erly open thermally operated vent dampers. This
the infirm, or physically/mentally handicapped, if would cause spillage of flue gases and may cause
anyone using hot water in your home fits into one of carbon monoxide poisoning.
these c_roups or if there is a local code or state law Vent dampers must bear evidence of certification as
• complying with the latest edition of American
requmng a certain temperature water at the hot National Standard ANSI Z21.68 (ANSI Z21,66 & 67,
water tap, then you must take special precautions. In
respectively, cover electrically and mechanically actu-
addition to using the lowest possible temperature ated vent dampers). Before installation of any vent
setting that satisfies your hot water needs, a means
such as a mixing valve, should be used at the hot damper, consult your local gas utility for further
water taps used by these people or at the water information.
heater. Mixing valves are available at plumbing sup-
ply or hardware stores. Follow manufacturers instruc-
tions for installation of the valves. Before changing
the factory setting on the thermostat, read the _WARNING
"Temperature Regulation" section in this manual.
• The appliance and its individual shutoff valve must
be disconnected from the gas supply piping system
during any pressure testing of the gas system at
test pressures in excess ofl/2 pound per square
A, WARNING inch (3.5kPa).
Soot build-up indicates a problem that requires cor- • The appliance must be isolated from the gas sup-
rection before further use. Turn "off" gas to water ply piping system by closing its individual manual
heater and leave "off" until repairs are made, shutoff valve during any pressure testing of the
because failure to correct the cause of the sooting gas supply piping system at test pressures equal or
can result in a fire or explosion causing DEATH, SERI- lessthan 1/2 pound per square inch (3.5kPa).
OUS BODILY INJURY,OR PROPERTY DAMAGE.
-_ WARNING AWARNING
BEFORE LIGHTING [PROPANE (L.P.) GAS WATER Chemical vapor corrosion of the flue and vent sys-
HEATERS]: Propane (L.P.) gas is heavier than air. tem may occur if air for combustion contains certain
Should there be a leak in the system, the gas will set- chemical vapors. Spray can propellants, cleaning sol-
tie near the ground, Basements, crawl spaces, skirted vents, refrigerator and air conditioner refrigerants,
areas under manufactured (mobile) homes (even swimming pool chemicals, calcium and sodium chlo-
ride, waxes, bleach, and process chemicals are typi-
when ventilated), closets and areas below ground
level will serve as pockets for the accumulation of cal compounds which are potentially corrosive.
this gas. Before attempting to light or relight the
water heater's pilot or turning on a nearby electrical
light switch, be absolutely sure there is no accumu-
lated gas in the area. Searchfor odor of gas by sniff- I AWARNING ]
ing at ground level in the vicinity of the appliance. If I Obstructed or deteriorated vent systems may pre-
odor is detected, follow steps indicated at "For Your [sent a serious health risk or asphyxiation. 1
Safety" on the cover page of this manual then leave
the premises.
3 Safety Instructions continued on page 4.
Safety Instructions
_,WARNING AWARNING
The water heater with draft hood installed must be INSULATING JACKETS: When installing an external
properly vented to a chimney which terminates out- water heater insulation jacket on a gas water heater:
doors. Never operate the water heater unless it is =DO NOT cover the temperature-pressure relief valve.
vented to the outdoors and has adequate air supply =DO NOT put insulation over any part of the top of
to avoid risks of improper operation, explosion or the gas water heater.
asphyxiation. • DO NOT put insulation over the gas control valve or
gas control valve/burner cover, or any access areas
to the burner.
• DO NOT let insulation around the gas water heater
AWARNING to get within 8 inches of the floor (air must get to
Minimum clearances between the water heater and the burner).
combustible and noncombustible construction are 1" =DO NOT cover or remove operating instructions,
at the sides and rear, 4" at the front, and 6" from the and safety related warning labels and materials
affixed to the water heater.
vent pipe. Clearance from the top of the jacket is 18"
on most models. Note that a lesser dimension may be Failure to heed this will result in the possibility of a
allowed on some models. Refer to the label on the fire or explosion.
water heater adjacent to the gas control valve for all
clearances.
_,CAUTION
A,WARNING WATER HEATERS EVENTUALLY LEAK: Installation of
Flood damage to a water heater may not be readily the water heater must be accomplished in such a
visible or immediately detectible. However, over a manner that if the tank or any connections should
period of time a flooded water heater will create leak, the flow of water will not cause damage to
dangerous conditions which can cause DEATH, SERI- the structure. For this reason, it is not advisable to
OUS BODILY INJURY, OR PROPERTY DAMAGE. install the water heater in an attic or upper floor.
Contact the Maytag dealer from whom the appli- When such locations cannot be avoided, a suitable
ante was purchased or call Maytag Customer Service drain pan should be installed under the water
at 1-800-788-8899 for an authorized servicer to heater. Drain pans are available at your local hard-
replace a flooded water heater. Do not attempt to ware store. Such a drain pan must be not greater
repair the unitl It must be replacedl than 1½ inches deep, have a minimum length and
width of at least 2 inches greater than the water
heater dimensions and must be piped to an ade-
quate drain. The pan must not restrict combustion
A,WARNING air flow. Under no circumstances is the manufactur-
HYDROGEN GAS: Hydrogen gas can he produced in er or Maytag to be held liable for any water dam-
a hot water system that has not been used for a age in connection with this water heater.
long period of time (generally two weeks or more).
Hydrogen gas is extremely flammable and explosive.
]To prevent the possibility of injury under these con-
ditions, we recommend the hot water faucet be
opened for several minutes at the kitchen sink
before any electrical appliances which are connected
to the hot water system are used (such as a dish-
washer or washing machine). If hydrogen gas is pre-
sent, there will probably be an unusual sound simi-
lar to air escaping through the pipe as the hot water
faucet is opened. There must be no smoking or open
flame near the faucet at the time it is open.
4
Table of Contents
Safety Instructions ...................................................................................................................................2-4
Table of Contents ...............................................................................................................................5
Customer Information ..................................................................................................................6
Product
Specifications .........................................................................................................................7
Accessories and Tools Needed ............................,..................................................................8
Accessories ................................................................................................................................................................... 8
Tools ................................................................................................................................................................................... _
Instructions for Installation .............................................................................................9-19
Removing the Old Water Heater ..................................................................................................................................... .9
Typical Installation ......................................................................................................................................................... ..10
Locating the New Water Heater ................................................................................................................................. 11,12
Combustion Air and Ventilation for Appliances in Unconfined Spaces ............................................................................. 12
Combustion Air and Venflation for Appliances in Confined Spaces ............................................................................ 12,13
Water Piping ..................................................................................................................................................................... 14
Temperature-Pressure Relief Valve ................................................................................................................................. 15
Filling the Water Heater .................................................................................................................................................. 16
Venting ....................................................................................................................................................................... 16,17
Gas Piping ................................................................................................................................................................ 17,18
Installation Checklist .......................................................................................................................................................... 19
Instru ct!on sfor Op erat!on;????Z?????;;;?;???????;??????S???Z))?)??:???Z__;;Z;;Z?;;??_00_
Temperature Regulation .................................................................................................................................................... 22
Service and Maintenance .......................................................................................................23-25
Venting System Inspection. .............................................................................................................................................. .23
Burner Inspection ....................................................................................................................................................... 23
L.R Gas Control Valve and Burner Assembly Replacement Information ......................................................................... 224
Burner Cleaning .............................................................................................................................................................. .24
Draining ......................................................................................................................................................................... 24
Temperature-Pressure Relief Valve Operation ................................................................................................................. 25
Drain Valve Washer Replacement ................................................................................................................................. .25
Housekeeping ................................................................................................................................................................. .25
Service ........................................................................................................................................................................... 25
Troubleshooting ................................................................................................................................26-29
Start Up Conditions .......................................................................................................................................................... .26
Condensation ........................................................................................................................................................... 26
Smoke/Odor ............................................................................................................................................................ 26
Thermal Expansion .................................................................................................................................................... 26
Strange Sounds ......................................................................................................................................................... .26
Operational Conditions ........................................................................................................................................... .27,28
Smelly Water ............................................................................................................................................................. 27
Air in Hot Water Faucets ............................................................................................................................................ .27
High Temperature Shut Off System ........................................................................................................................... 27
Not Enough Hot Water ............................................................................................................................................. .27
Water is too Hot .......................................................................................................................................................... 28
Leakage Checkpoints ...................................................................................................................................................... 29
----RepairParts List ..........................................................................................................................30-37
Warranty ...........................................................................................................................................................40
5
Customer Information
Thank Youfor purchasinga Maytag water heater. • The installation must conform with the instructions in this
Properly installed and maintained, it should give you years of manual; gas company rules; and Local Codes, or in the
trouble free service. It is strongly suggested that this new water absence of Local Codes, with the latest edition of the
heater be professionally installed, contact Maytag Customer National Fuel Gas code, ANSI Z223.1, also referred to as
Service (1-800-788-8899) for recommended installers. NFPA 54. This publication is available from your local
government or public fibrary or gas company or by writing
Abbreviations Found In This Instruction Manual NFPA, Batterymarch Park, Quincy, MA 02269.
CSA - Canadian Standards Association • After reading this manual you have any questions or do not
ANSI - American National Standards Institute understand any portion of the instructions, call Maytag
NFPA - National Fire Protection Association Customer Service at 1-800-7_8-8899 for an authorized
servicer,
_WARNING • Carefully plan the place where you are going to put the
water heater. Correct combustion, vent action, and vent
This gas-fired water heater is design certified by
CSA INTERNATIONAL under American National pipe installation are very important in preventing death
Standard/CSA Standard for Gas Water Heaters ANS from possible carbon monoxide poisoning and fires.
Z21.10.1 • CSA 4.1 (latest edition). The installation Examine the location to ensure the water heater complies
must conform with this manual, Local Codes and with the "Locating the NewWater Heater" section in this
with the latest edition of the National Fuel Gas
Code, ANSI Z223.1. manual.
This publication is available from your local govern- • For California installation this water heater must be braced,
ment or public library, gas company, or by writing anchored, or strapped to avoid falling or moving during an
NFPA, Batterymarch Park, Quincy, MA 02269.
earthquake. See instructions for correct installation proce-
dures. Instructions may be obtained from your local dealer,
• Read the "Safety Instructions" sectlon, pages 2, 3 and 4 of wholesaler, public utilities or California Office of the State
this manual first and then the entire manual carefully. If Architect, 400 P Street, Sacramento, CA 95814.
you don't follow the safety rules, the water heater will not
operate properl)_ It could cause DEATH, SER/OUS • Massachusetts Code requires this water heater to be
installed in accordance with Massachusetts 248-CMR 2.00:
BODILY INJURY AND/OR PROPERTY DAMAGE.
• This manual contains instructions for the installation, State Plumbing Code and 248-CMR 5.00.
operation, and maintenance of the gas-fired water heater. • Compiles with SCAQMD rule #1121 and districts having
It also contains warnings through out the manual that you equivalent NOx requirements.
must read and be aware of. All warnings and all instruc-
tions are essential to the proper operation of the water
heater and your safety. Since we cannot put everything on
the first few pages, READ THE ENTIRE MANUAL
BEFORE ATTEMPTING TO INSTALL OR OPER-
ATE THE WATER HEATER.
6
Product Specifications
Model HN4930T HP4930T HN4940S HP4940S HN4940T HP4940T
*HN5930T *HP5930T *HN5940S *HP5940S *HN5940T *HP5940T
Tank Capacity
In Gallons 30 30 40 40 40 40
Type of
Gas Natural Propane Natural Propane Natural Propane
B.T.U.
Rate 40,000 . 40_000 40,000 407000 40,000 40,000
Recovery Rate
In Gals Per Hour
@90*F Rise 41.0 41.0 41.0 41.0 41.0 41.0
Minimum
Vent Pipe 3" or 4" 3" or 4" Y' or 4" 3" or 4" 3" or 4" 3" or 4"
Diameter 16" 16" 20" 20" 18" 18"
Height To
Top of
Draft Hood 62" 62" 52" 52" 62V{' 62t/2"
Model HN4950S HP4950S HN4950T HP4950T HN4975S HP4975S
*HN5950S *HP5950S *HN5950T *HP5950T *HN5975S *HP5975S
Tank Capacity
In Gallons 50 50 50 50 73 73
Type of
Gas Natural Propane Natural Propane Natural Propane
B.T.U.
Rate 40_000 40,000 40,000 40,000 . 75_000 55,000
Recovery Rate
In Gals Per Hour
@ 90*F Rise 41.0 41.0 41.0 41.0 77.0 56.0
Minimum
Vent Pipe 3" or 4" 3" or 4" 3" or 4" 3" or 4" 4" 4"
Diameter 24" 24" 20" 20" 24" 24"
Height To
Top of
Draft Hood 531/" 531/," 63" 63" 621/2" 621/f '
* High altitude models have a B.T.U./Recovery Rate 10% less than shown.
7
Accessoriesand Tools Needed
Accessories
To simplify the installation May_ag 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 3.-800-788-8899 for an autho-
rized installer.
C)
DRAIN PANS AVAILABLE IN 22" DIAMETER
(PART NUMBER 66001011) FOR WATER
HEATERS HAVING A DfAMETER 20" OR LESS,
24" DIAMETER (PART NUMBER 66001105) FOR
WATER HEATERS HAVING A DIAMETER 22"
EXPANSION TANKS FOR THERMAL EXPANSION
OR LESSAND 28" DIAMETER (PART NUMBER
CONDITIONS AVAILABLE IN 2 GALLON (PART 66001012) FOR WATER HEATERS HAVING A
NUMBER 66001013) AND 5 GALLON (PART DIAMETER 26" OR LESS
NUMBER 66001014) CAPACITY
Tools
You may or may not need all of these tools, depending on your ADDITIONAL TOOLS NEEDED
type ofinstaUation. These tools can be purchased at your local WHEN SWEAT SOLDERING
hardware store.
• Tubing Cutters or Hacksaw
• Pipe Wrenches (2) 14" • Propane Torch
• Screwdriver • So_ Solder
• Solder Flux
• Tin Snips _-__ !p__-_-_-_ " EmeryCIot__HAhCK SAW
• 6 Foot Tape of Folding Rule • Wire Brushes
• Garden Hose ?
• Drill
• Pipe dope or Teflon Tape GARDEN HOSE
6 FOOT TAPE _PNEcH _RE BRUSH
ROLL OF TEFLON TAPE
(USE ONLY ON WATER
CONNECTIONS) C_I_I/2"WIRE BRUSH
_ _ PROPANE TORCH
SLOT-HEAD SCREWDRIVER
TIN SNIPS
PHILLIPS SCREWDRIVER ROLL OF LEAD FREE
SOFT SOLDER
PIPE DOPE (SQUEEZE TUBEI
(USE FOR WATER AND ROLL OF EMERY
GAS CONNECTIONS) _ CLOTH SOLDER FLUX TUBING CUTTER
8
Instructions for Installation
Removing the Old Water Heater
O Turn "OFF" the gas supply to the water heater. Q Disconnect the vent pipe from the draft hood where they
connect to the water heater. In most installations the vent
] pipe can be rifted off after any screw or other attached
A
WARNING
If the main gas line sh_gas appliancesisused,l/ devices are removed, Dispose of the draft hood, The new
alsoshut%ff" the gasat eachappliance.Leaveall gasappli-| water heater has the draft hood which must be used for
ancesshut=off*untilthewaterheaterinstallationiscomplete. ] proper operation.
G a. If you have copper piping to the water
heater, the two copper water pipes can
be cut with a hacksaw approximately
four inches away from where they con-
nect to the water heater. This will
Q Q avoid cutting off the pipes too short.
Additional cuts can be made later if
necessary. Disconnect the temperature-
pressure refiefvalve drain line. When
QTurn "OFF" the water to the water the water heater is drained, disconnect
heater. Some installations require that _ the hose from the drain valve. Close
the water be turned offto the entire the drain valve. The water heater is
now completely disconnected and
house.
(_ ready to be removed.
Check again to make sure the gas sup-
ply is "OFF" to the water heater. Then I _ tal_ Q b. If you have galvanized pipe to the water
disconnect the gas supply connection _ _ heater, loosen the two galvanized pipes
with a pipe wrench at the union in each
from the
gas
control valve.
_) fine. Also disconnect the piping
Q Attach a hose to the water heater drain
remaining
tO the water heater. These
pieces should be saved since they may
valve and put the other end in a floor _, be needed when reconnecting the new
drain or outdoors. Open the water water heater. Disconnect the tempera-
heater drain valve. Open a nearby hot ture-pressure relief valve drain line.
water faucet which will relieve pressure When the water heater is drained, dis-
in the water heater and speed draining, connect the hose from the drain valve.
Close the drain valve. The water heater
ready to be removed.
WARNING A, CAUTION
Thewater passingoutofthe drainvalvemaybe extremelyhot. Mineralbuilduporsedimentmay haveaccumulatedin the old
Toavoidbeing scalded,makesureall connectionsare tight and water heater.Thiscausesthe water heaterto be muchheavier
thatthewaterflow isdirectedawayfromanyperson, thannormalandthisresidue,ifspilledout, couldcausestaining.
9
Instructions for Installation (cont'd)
Typical Installation
CHECKALL CONNECTIONS FOR LEAKS.CONSULTTHE LOCALUTILITY COMPANY TO EXAMINE INSTALLATIONFOR PRO-
PRIETYAND SAFETY.
VACUUMRELIEFREQUIREDBYSOMECODES
_ (REFERTOLOCALCODES)
HOTWATEROUTLET
gem
TOCHIMNEY _-_ COLDWATERINLET
TEMPERED _ _ _ _
W,TEROUT'ET
*MIXINGVALVE ]
GAS I
SUPPLY -- TEMPERATURE-PRESSURE
RELIEFVALVE
DISCHARGEPIPE
R[_ _-- -- (Donotcaporplug)
_ _ DRAINVALVE
V
DRA
__'_ TOSUITABLEDRAIN
This appliance has been design certified as complying with American National Standard/CSA Standard for water heaters and is con-
sidered suitable for.
Water (Potable) Heating: Al1 models are "considered suitable for water (potable) heating."
AWARNING . A WARNING to anyheat-HOTTER WATER CAN SCALD: Water heaters are This water heater shall not be connected
intended to produce hot water, Water heated to a ing systems or component(s) previously used with atemperature which will satisfy clothes washing, non-potable water heating appliance.
dish washing, and other sanitizing needs can scald
and permanently injure you upon contact. Some
people are more likely to be permanently injured by
hot water than others. These include the elderly, A WARNING [
children, the infirm, or physically/mentally hancli- I
capped. If anyone using hot water in your home fits Toxic chemicals such as used for treatment of boilers
into one of these groups or if there is a local code or or non-potable water heating appliances shall never J
be introduced into a potable water space heating
system.
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 NOTE: To protect against untimely corrosion of hot and
at the water heater. Mixing valves are available at cold water fittings, it is strongly recommended that di-elec-
plumbing supply or hardware stores. Follow manu- tric unions or couplings be installed on this water heater
tacturers instructions for installation of the valves.
Before changing the factory setting on the thermo- when connected to copper pipe.
stat, read the "Temperature Regulation" section in
this manual.
10
Instructions for Installation (cont'd)
Locating the New Water
Heater
You should carefully choose an indoor location for the new &WARNING
water heater, because the placement is a very important con- This water heater must not be installed directly on
sideration for the safety of the occupants in the building and carpeting. Carpeting must be protected by a metal
for the most economical use of the appliance. This water or wood panel beneath the appliance extending
heater is not for use in manufactured (mobile) homes or out- beyond the full width and depth of the appliance
by at least 3 inches (76.2mm) in any direction, or if
doorinst_/lation, the appliance is installed in an alcove or closet, the
entire floor must be covered by the panel. Failure to
Whether replacing an old water heater or putting the water heed this warning may result in a fire hazard.
heater in a new location, the following critical points must be
observed.
The location selected should be indoors as close as practical to _kWARNING
the gas vent or chimney to which the water heater vent is going Minimum clearances between the water heater and
combustible and noncombustible construction are
to be connected, and as centralized with the water piping system 1" at the sides and rear, 4" at the front, and 6" from
as possible. The water heater, as all water heaters, will eventually the vent pipe. Clearance from the top of the jacket I
is 18" on most models. Note that a lesser dimension I
leak. Do not install without adequate drainage provisions where may be allowed on some models. Refer to the label
water flow wii1 cause damage, valveOntheforWaterallclearances.heateradjacent to the gas contro
_CAUTION
WATER HEATERSEVENTUALLY LEAK: Installation of
the water heater must be accomplished in such a 12"MAX. I_III"N [E_II_I "I"MIN.
manner that if the tank or any connections should - _ _., ._w_F=_ I
leak, the flow of water will not cause damage to
the structure. For this reason, it is not advisable to
VENTILATION
install the water heater in an attic or upper floor. OPENINGsAIRO I" HIN. , " MIN.
When such locations cannot be avoided, a suitable _ TOPVIEW _
OF CLOSET TOP VIEW I" MIN.
drain pan should be installed under the water _ WITHOUTDOOR OFCLOSET
heater. Drain pans are available at your local hard- _'MAX. WITHDOOR
ware store. Such a drain pan must be not greater
FRONT VIEVV
than 1'½ inches deep, have a minimum length and OFDOOR RECTANGU_R3"
width of at least 2 inches greater than the water HIN
heater dimensions and must be piped to an ade- j j AIRDUCT
quate drain. The pan must not restrict combustion I Figure 1 I
air flow. Under no circumstances is the manufactur-
er or Maytag to be held liable for any water dam-
age in connection with this water heater.
AWARNING
AWARNING A gas water heater cannot operate properly with-
out the correct amount of air for combustion. Do
Propellants of aerosol sprays and volatile com-
pounds, (cleaners, chlorine based chemicals, refrig- not install in a confined area such a closet, unless
erants, etc.) in addition to being highly flammable you provide air as shown in the "Locating The New
Water Heater" section. Never obstruct the flow of
in many cases, will also change to corrosive
ventilation air. If you have any doubts or questions
hydrochloric acid when exposed to the combustion J
products of the water heater. The results can be at all, call your gas company. Failure to provide the
hazardous, and also cause product failure, proper amount of combustion air can result in a fire
or explosion and can cause DEATH, SERIOUS BODI-
LYINJURY, OR PROPERTYDAMAGE.
The location selection must provide adequate clearances for ser-
vicing and proper operation of the water heater.
11
Instructions for Installation (cont'd)
Locating the New Water Combustion Air and Ventilation
Heater (cont'd) for Appliances Located in
Unconfined Spaces
_, WARNING Unconfined Space is a space whose volume is not less than
If this water heater will be used in beauty shops, 50 cubic feet per 1,000 Bru per hour of the aggregate input
barber shops, cleaning establishments, or self-ser- rating o£all appliancesinstalled in that space.Rooms corn-
vice laundries with dry cleaning equipment, it is municating directly with the space in which the appliances are
imperative that the water heater or water heaters installed, through openings not furnished with doors, are
be installed so that combustion and ventilation air
be taken from outside these areas. Refer to the considered a part of the unconfined space
"Locating The New Water Heater" section of this In unconfined spaces in buildings, infiltration maybe ade-
manual and also the latest edition of the National quate to provide air for combustion, ventilation and dilution
Fuel Gas Code, ANSI Z223.1, also referred to as NFPA
54 for specifics provided concerning air required, of flue gases. However, in buildings of tight construction (for
example, weather stripping, heavily insulated, caulked, vapor
barrier, etc.), additional air may need to be provided using the
methods described in Combustion Air and Venfilation for
AWARNING I Appliances Located in Confined Spaces, b.
INSTALLATIONS IN AREAS WHERE FLAMMABLE LIQ-I
i
UIDS (VAPORS)ARE LIKELYTO BEPRESENTOR STOREDI
(GARAGES, STORAGE, AND UTILITY AREAS, ETC)" Combustion Air andVentilation
Flammable liquids (such as gasoline, solvents, propane
for
A._ __ I_i
Located
in
(LP) or butane, etc.), all of which emit flammable I mpp,,ances
vapors, may be improperly stored or used in such I
areas. The gas water heater pilot light or main burner Confined Spaces
can ignite such vapors. The resulting flashback and fire I Confined Spaceis a spacewhosevolume is lessthan 50 cubic
can cause death or serious burns to anyone in thei
area, as well as property damage, feet per 1,000 Btu per hour of the aggregate input rating of all
If installation in such areas is your only option, then I appliances installed in that space.
the installation must be accomplished in a way that a. ALL AIR FROM INSIDE BUILDINGS:
the pilot flame and main burner flame are elevated (See Page 11 Figure 1, and Figure 2 below)
from the floor at least 18 inches. While this may
reduce the chances of flammable vapors from a floor The confined space shall be provided with two permanent
spill being ignited, gasoline and other flammable sub- openings communicating directly with an additional
stances should never be stored or used in the same
room or area containing a gas water heater or other room(s) of sufficient volume so that the combined volume
open flame or spark producing appliance, of all spaces meets the criteria for an unconfined space.
NOTE: Flammable vapors may be drawn by air currents The total input of all gas utilization equipment installed in
from other areas of the structure to the appliance, the combined space shall be considered in making this
determination. Each opening shall have a minimum free
area of one square inch per 1,000 BTU per hour of the
total input rating of all gas utilization equipment in the
confined space, but not less than 100 square inches. One
opening shall commence within 12 inches of the top and
one commencing within 12 inches of the bottom of the
enclosure.
ASVENT
IFigure2]
12
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