Maytag HJ640NOVET User manual

Brand: Maytag

Model: HJ640NOVET

Category: Water heaters & boilers

Type: User manual

This manual is also suitable for

1VLYIAG

POWER VENT

GAS WATER HEATER

USER'SGUIDE

For Your Safety

AN ODORANTISADDEDTOTHEGASUSEDBYTHISWATERHEATER Model Numbers

HJ640NOVET

WARNING: If the information in these instructions are not fol- HJ640POVET

lowed exactly, a fire or explosion may result, causing property HJ640NOVET2

damage, personalinjuryor death. HJ640POVET2

HJ650NOVET

-Do not store or use gasolineor other flammable vaporsand liq- HJ650POVET

uidsin the vicinityof this or any other appliance. HJ650NOVET2

-WHAT TO DO IFYOU SMELLGAS HJ650POVET2

HJ675NRVETZ

• Do not try to light any appliance. HJ675PRVETZ

• Do not touch any electrical switch; do not use any phone in

your building.

° Immediately call your gas supplier from a neighbor's phone.

Followthe gassupplier'sinstructions.

• if you cannot reachyour gassupplier,callthe fire department.

-Installation and servicemustbe performedby a qualified installer, FORPOTABLEWATER

serviceagencyor the gas supplier. HEATING ONLY

•,WARNING NOT SUITABLE FOR

Improper installation, adjustment, alteration, service or mainte- SPACE HEATING

nance can cause DEATH, SERIOUSBODILYINJURY,OR PROPERTY

DAMAGE. Refer to this manual for assistanceor consultthe local

gas utility for further information. NOT FOR USE IN

MANUFACTURED

AWARNING other (MOBILE) HOMES

Flammable vapors may be drawn by air currents from

areas of the structure to this appliance.

Caution:

_,WARNING Read and Follow All

READ THE GENERAL SAFETY SECTION BEGINNING ON INSIDE Safety Rules and

COVER AND THEN THIS ENTIRE MANUAL BEFOREINSTALLING Operating Instructions

OR OPERATNG THIS WATER HEATER. Before First Use of

Save this Manual for Future Reference. This Product.

Safety Instructions

A, WARNING A, WARNING

Improper installation, adjustment, alteration, service At the time of manufacture this water heater was pro-

or maintenance can cause DEATH, SERIOUS BODILY vided with a combination temperature-pressures relief

INJURY, OR PROPERTYDAMAGE. Refer to this manu- valve certified by a nationally recognized testing labo-

al for assistance consult your local gas utility or call ratory that maintains periodic inspection of production

Maytag Customer Service at 1-800-788-8899 for an of listed equipment or materiels, as meeting the

authorized servicer for further information, requirements for Relief Valves and Automatic Gas

Shutoff Devices for Hot Water Supply Systems, and

the latest edition of ANSI Z21.22 and the code requiR_-

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

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

WATER HEATERS EQUIPPED FOR ONE TYPE GAS nation temperature and pressure relief valve certified

ONLY: This water heater is equipped for one type as meeting the requirements for Relief Valves and

gas only. Check the model rating plate near the gas Automatic Gas Shutoff Devices for Hot Water Supply

control valve for the correct gas. DO NOT USE THIS Systems, ANSI Z21.22 by a nationally _cognized test-

WATER HEATER WITH ANY GAS OTHER THAN THE ing laboratory that maintains periodic inspection of

ONE SHOWN ON THE MODEL RATING PLATE. Failure production of listod 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.)

AWARNING Your local jurisdictional authority, while mandating the

INSTALLATIONS IN AREAS WHERE FLAMMABLE LIQ- use of a temperature-pressure relief valve complying

UIDS (VAPORS)ARE LIKELYTO BEPRESENTOR STOREDI with ANSI Z21.22 and ASME, may require a valve model

(GARAGES, STORAGE, AND UTILITY AREAS, ETC)- different from the one furnished with the water heater.

Flammable liquids (suchas gasoline, solvents, propane Compliance with such local requirements must be sat-

(LP) or butane, etc.), all of which emit flammable isfiedby 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 .c_nitoror main burner can valve installed in the designated opening in the water

ignite suchvapors. The resulting flashback and fire can heater in place of the factory furnished valve.

cause death or serious hums to anyone n the area, as For safe operation of the water heater, the relief valve I

must not be removed from it's designated opening or

well asproperty damage.

If installation in such areas is your only option, then I plugged, r I I

the !nstallation must be accomplished in a way that The temperature-p essure relief va ve must be

the ignitor and main burner flame are elevatedfrom I installed directly into the fitting of the water heater

the floor at least 18 inches. While this may reduce the designated for the relief valve. Position the valve

chances of flammable vapors from a floor spill being downward and provide tubing so that any discharge

ignited, gasoline and other flammable substances will exit only within 6 inchesabove, or at any distance

should never be stored or used in the same room or below the structural floor. Becertain that no contact is

area containing a gas water heater or other open made with any live electrical part. The discharge open-

flame or spark producing appliance, ing must 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 isto be placed between

I the relief valve and the tank. Do not connect tubing

&WARNING

di_-tly to discharge drain unlessa 6" air gap isprovid-

|If this water heater will be used in beauty shops, ed. Toprevent 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 suitab e means, the water flow may cause property

be taken from outside these areas. Refer to the damage.

"Locating The New Water Heater" section of this _TheDischarge 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 specifics provided concerning air required, other restrictions.

Must not be plugged or blocked.

Must be of material listed for hot water distribution.

j • Must be installed so as to allow complete drainage

&WARNING

of both the temperature-pressure relief valve, and

A fire can start if combustible 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.

Safety Instructions

AWARNING I 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 Jn a confined area such a closet, unless you |or wood panel beneath the appliance extending

provide air as shown in the "Locating 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 PROPERTYDAMAGE,

AWARNING

The power vent water heater requires its own (sepa-

rate)venting system. It cannot be connected to an

AWARNING exist ng vent pipe or chimney. It must be term nated

HOTTER WATER CAN SCALD: Water heaters are to the outdoors. Failure to properly install the vent-

intended to produce hot water. Water heated to a ing system can result in asphyxiation, a fire or explo-

temperature which will satisfy clothes washing, dish Ision and can cause DEATH, SERIOUS BODILY INJURY,

washing, and other sanitizing needs can sca|d and OR PROPERTY DAMAGE.

permanently injure you upon contact. Some people

are more likely to be permanently injured by hot

water than others, These indude the elderly, children,

the infirm, or physically/mentally handicapped. If I _,WARNING

anyone using hot water in your home fits into one of I

these groups or if the_ is a local code or state law _ _No vent damper installation is compatible with this

power ventedwater heater design. No vent damper,

requiring a certain temperature water at the hot I whether it is operated thermally or otherwise is to

water tap, then you must take special precautions. In [ be installed on this power vented water heater. AI-

addition to using the lowest possible temperature I teration of any part of the factory-furnished vent as-

setting that satisfies your hot water needs, a means sembly could result in improper operation due to re-

such as a mixing valve, should be used at the hot striction of flue gases, spillage of flue gases and may

water taps used by these people or at the water 'cause carbon monoxide poisoning.

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 AWARNING

'_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 of ½ pound per square inch

A WARNING (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

gas supply piping system at test pressures equal or

because failure to correct the cause of the sooting lessthan _½pound per square nch (3.5kPa).

can result in a fire or explosion causing DEATH, SERI-

OUS BODILY INJURY,OR PROPERTYDAMAGE,

AWARNING

l AWARNING Chemical vapor corrosion of the flue and vent sys-

tem may occur if air for combustion contains certain

BEFORE LIGHTING [PROPANE (L.P,) GAS WATER chemical vapors. Spray can propellants, cleaning sol-

HEATERS]: Propane (L.P.) gas is heavier than air. vents, refrigerator and air conditioner refrigerants,

Should there be a leak in the system, the gas will set- swimming pool chemicals, calcium and sodium chlo-

tie near the ground. Basements, crawl spaces, skirted ride, waxes, bleach, and process chemicals are typi-

areas under manufactured (mobile) homes (even cal compounds which are potentially corrosive.

when ventilated), closets and areas below ground

Ilevel will serve as pockets for the accumulation of

this gas. Before attempting to operate the water

heater or turning on a nearby electrical light switch,

be absolutely sure there is no accumulatedgas in the

_,WARNING 1

Obstructed or deteriorated vent systems may pre-

sent a serious health risk or asphyxiation.

area. Search for odor of gas by sniffing at ground

level in the vicinity of the appliance. If odor isdetect-

ed, follow steps indicated at "For Your Safety" on the

cover page ofth s manua then eave the prem ses.

3 Safety Instructions continued on page 4.

Safety Instructions

AWARNING _,WARNING

Minimum clearances between the water heater and Vent termination must not be within 4 feet of any

combustible and noncombustible construction are 0" items such as gas meters, gas valves or other gas reg-

at the sides and rear, 5 inches from front of jacket to u at n_lequ pment.

closet door, and 0" from the vent pipe. Clearance from

the top of the jacket is 14" (12" on some models).

Provide 24 inches front clearance for servicing and

adequate clearance between the jacket top and ceil- ACAUTION

ing tor servicing the flue area. Refer to the label on WATER HEATERS EVENTUALLY LEAK: Installation of

the water heater adjacent to the gas control valve for the water heater must be accomplished in such a

all clearances, manner that if the tank or any connections should

leak, the flow of water will not cause damage to

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

install the water heater in at attic or upper floor.

AWARNING When such locations cannot be avoided, a suitable

Flood damage to a water heater may not be readily drain pan should be installed under the water

visible or immediately detectible. However, over a heater. Drain pans are available at your local hard-

period of time a flooded water heater will create ware store, Such a drain pan must be not greater

dangerous conditions which can cause DEATH, SERI- than 1½ inches deep, have a minimum length and

OUS BODILY INJURY, OR PROPERTY DAMAGE. width of at least 2 inches greater than the water

Contact the Maytag dealer from whom the appli- heater dimensions and must be piped to an ade-

ance was purchased or call Maytag Customer Service quate drain. The pan must not restrict combustion

at 1-800-788-8899 for an authorized servicer to air flow. Under no circumstances is the manufactur-

replace a flooded water heater. Do not attempt to er to be held liable for any water damage in con-

repair the unit! It must be replaced! nection with this water heater.

AWARNING

HYDROGEN GAS: Hydrogen gas can be produced in

a hot water system that has not been used for a

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 isopened. There must be no smoking or open

flame near the faucet at the time it is open.

_,WARNING

INSULATING JACKETS: When installing an external

water heater insulation jacket on a gas water heater:

• DO NOT cover the temperature-pressure relief valve.

• DO NOT put insulation over any part of the top of

the gas water heater.

• DO NOT put insulation over the gas control valve or

gas control valve/burner cover, or any accessareas

to the burner.

• DO NOT let insulation around the gas water heater

to get within 8 inches of the floor (air must get to

the burner).

• DO NOT cover or remove operating instructions,

and safety related warning labels and materials

affixed to the water heater.

Failure to heed this will result in the possibility of a

fire or explosion.

Table of Contents

,In tucton........................................................................................................................................................................................................................................................................... -o,ontents

Customer Information .....................................................................................................................6

Accessories ............................................................................................................................................................................ 8

Basic Tools ..................................................................................................................................................................... .8

Instructions for Installation .....................................................................................................9-29

Removing the Old Water Heater ...................................................................................................................................... 9

Typical Installation ............................................................................................................................................................ 10

Locating the New Water Heater ................................................................................................................................... .11,12

Combustion Air and Ventilation ..................................................................................................................................... 12

Venting Clearances ....................................................................................................................................................... 12,13

Combustion Air and Ventilation for Appliances in Unconfined Spaces ............................................................................ 13

Combustion Air and Ventilation for Appliances in Confined Spaces ............................................................................... 14

Water Piping .................................................................................................................................................................... 15

Temperature-Pressure Relief Valve ............................................................................................................................... ..16

Filling the Water Heater ................................................................................................................................................. 17

Wiring. ......................................................................................................................................................................... 17,18

Venting ...................................................................................................................................................................... 19-27

Gas Piping ................................................................................................................................................................. 27,28

Installation Checklist ...................................................................................................................................................... 29

Instructions for Operation ..................................................................................................30-33

Operating ...................................................................................................................................................................... 30-32

Temperature Regulation .................................................................................................................................................. .33

Service and Maintenance ....................................................................................................... 34-36

Venting System Inspection ................................................................................................................................................ .34

Oiling Instructions ....................................................................................................................................................... B4

Burner Inspection ........................................................................................................................................................ .34

Burner Cleaning. .............................................................................................................................................................. 34

L.E Gas Control Valve and Burner Assembly Replacement Information .......................................................................... 35

Draining. ..................................................................................................................................................................... .35

Temperature-Pressure Relief Valve Operation ................................................................................................................. 36

Drain ValveWasher Replacement ................................................................................................................................ 36

Housekeeping ............................................................................................................................................................ 36

Service ................................................................................................................................................................................ .36

:=====================::::::::::::::::::::::::.....:::::::::::::::::::::::::::::::::::

Condensation ......................................................................................................................................................... .37

Smoke/Odor .............................................................................................................................................................. 37

Thermal Expansion ................................................................................................................................................... ..37

Strange Sounds ....................................................................................................................................................... .37

Operational Conditions .............................................................................................................................................. 38,39

Smelly Water ................................................................................................................................................................ 38

"Air" in Hot Water Faucets ......................................................................................................................................... .38

High Temperature Shut Off System ....................................................................................................................... .38

Venting Manual Reset Switch ..................................................................................................................................... 38

Not Enough Hot Water ................................................................................................................................................. 39

Water is too Hot ......................................................................................................................................................... 39

Leakage Checkpoints .............................................................................................................................................. .40

Thermostat and Gas Supply Check .............................................................................................................................. 41

Electrical System Check .......................................................................................................................................... 42-44

Repair Parts List .............................................................................................................................. 46-50

Warranty ................................................................................................................................................................52

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 youyears of manual; gas company rules; and Local Codes, or in the

trouble free service.It is strongly suggested that this new water absence of LocaI Codes, with the latest edition of the

heater he professionally iastaIted, contact Mayt_g Customer National Fuel Gas code, ANSI Z223.1, also referred to as

Service (1-800-788-8899) for recommended installers. NFPA 54. This pubfication is available from your local

Abbreviations Found In This Instruction Manual government or public library or gas company or by writing

CSA - Canadian Standards Association NFPA, Batterymarch Park, Quincy, MA 02269.

NFPA - National Fire Protection 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

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

AWARNING servicer.

This gas-fired water heater is design certified by Carefidly plan the place where you are going to put the

CSA INTERNATIONAL under American National water heater. Correct combustion, vent action, and vent

Standard/CSA Standard for Gas Water Heaters ANS pipe installation are very important in preventing death

Z21.10.1 * CSA 4.1 (latest edition). The installation from possible carbon monoxide poisoning and fires.

must conform with this manual, Local Codes and

with the latest edition of the National Fuel Gas Examine the location to ensure the water heater complies

Code, ANSI Z223.1. with the "Locating the New Water Heater" section in this

This publication is available from your local govern- manual.

ment or public library, gas company, or by writing

NFPA, Batterymarch Park, Quincy, MA 02269. For California installation this water heater must be braced,

anchored, or strapped to avoid falling ormoving during an

Read the "Safety Instructions" section, pages 2, 3 and 4 of earthquake. See instructions for correct instalIation proce-

this manual first and then the entire manual carefit!ly. If dures. Instructions may be obtained from your local dealer,

you don't follow the safety rules, the water heater _ not wholesaler, pubfic utilities or California Office of the State

operate properly. It could cause DEATH, SERIOUS Architect, 400 P Street, Sacramento, CA 95814.

BODILY INJURY AND/OR PROPERTY DAMAGE. • Massachusetts Code requires this water heater to be

• This manual contains instructions for the installation, installed in accordance with Massachusetts 248-CMR 2.00:

operation, and maintenance of the gas-fired water heater. State Plumbing Code and 248-CMR 5.00.

It also contains warnings through out the manual that you Compiles with SCAQ.MD rule #1121 and districts having

must read and be aware o£ All warnings and all instruc- equivalent NOx requirements.

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.

Product Specifications

*Model HJ640NOVET HJ640POVET HJ640NOVET2 HJ640POVET2 HJ650NOVET

Tank Capacity

In Gallons 40 40 40 40 50

Type of Gas Natural Propane Natural Propane Natural

B.T.U. rate 40,000 40,000 40,000 40,000 40,000

Recovery Rate

In Gals Per Hr.

@_°F Rise 41 41 41 4I 41

Vent Pipe 3"** 3" ** 3" ** 3"** 3" **

Diameter 18" 18° 20" 20" 20"

Height To

Top of Blower 68V:' 68%" 68_A" 68V: 67V:'

Model HJ650POVET HJ650NOVET2 HJ650POVET2 HJ675NRVETZ HJ675PRVETZ

Tank Capacity

In Gallons 50 50 50 75 75

Type of Gas Propane Natural Propane Natural Propane

B.T.U. rate 40,000 40,000 40,000 75,000 70,000

Recovery Rate

In Gals Per Hr.

@90°FRise 41 41 41 77 72

Vent Pipe 3" ** 3" ** 3" ** 3"*** 3" ***

Diameter 20" 22" 22" 26%" 26%"

Height To

Top of Blower 67%" 673/4" 67%" 711/2" 711/:

*Adding suffix "D" denotes high altitude (Example HJ640NOVETD). High altitude models have a

B.T.U./Recovery Rate 10% less than shown.

**Limited usage of 2" vent pipe - see pages 19 through 27.

***Limited usage of 4" vent pipe - see pages 19 through 27.

Accessoriesand ToolsNeeded

Accessories

To simplify the installation Maytag has available the installa-

tion parts shown below. You may or may not need all o£these

accessories depending on your type ofinstaTlation. CalI

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"

CONDITIONS AVAILABLE IN Z GALLON (PART OR LESSAND AVAILABLE IN 28" DIAMETER

NUMBER 66001013) AND S GALLON (PART (PART NUMBER 66001012) FOR WATER

NUMBER 66001014) CAPACITY HEATERS HAVING A DIAMETER 26" OR LESS

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.

i Tubing Cutters or Hacksaw• Pipe Wrenches (2) 14" Propane Torch

So fat Solder

• Screwdriver • Solder Flux

• Tin Snips _ _ _ o'WireBrushes

• 6 Foot Tape of Folding Rule Emery Cloth

• Garden Hose _ "_ _

• Drill

• Pipe dope or Teflon Tape GARDEN HOSE

HACKSAW

P,PE

6,00TTAPEWRENCH0_4..

ROLLOFTEFLONTAPE /4 W,BEBROSH

(USE ONLY ON WATER

CONNECTIONS)

1/2" WIRE BRUSH

"_ _ PROPANE TORCH

SLOT-HEAD SCREWDRIVER

TIN SNIPS _;_

PHIU.IPS SCREWDRIVER ROLL OF LEAD FREE

SOFT SOLDER

PIPE DOPE (SQUEEZE TUBE)

(USE FOR WATER AND ROLL OF EMERY

GAS CONNECTIONS) _ CLOTH SOLDER FLUX TUBING CU'I-rER

Instructions for Installation

Removing the Old Water Heater

Turn "OFF" the gas supply to the water heater. (_ Disconnect the vent pipe from the draft hood where they

"_" connect to the water heater. In most installations the vent

AWARNING pipe can be lifted off after any screw or other attached

devices are removed. Dispose of the draft hood. The new

If the main9_aslineshutoffservingall gasappliancesisused,

Ialso shut "oii" the gas at each appliance. Leave all gas appli- water heater has the draft hood which must be used for

[ ancesshut"off" unti/thewaterheaterinstallationiscomplete, proper operation.

Q a. If you have copper piping to the water

heater, the two copper water pipes can

cutw--appoximtl

four inches away from where they con-

nect to the water heater. This will

avoid cutting offthe pipes too short.

i::=l_l___ _'_ _ ____ Additional cuts can be made later if

necessary. Disconnect the temperature-

pressure reliefvalve drain line. When

the water heater is drained, disconnect

Turn "OFF" the water to the water

the hose from the drain valve. Close

heater. Some installations

require

that

f£

(_ the drain valve. The water heater is

the water be turned offto the entire

r now completely disconnected and

house.

(_ ready to be removed.

Check again sure gas sup-

to make the

ply is "OFF" to the water heater. Then I _ _ Q b. If you have galvanized pipe to the water

disconnect the gas supply connection _._) heater, loosen the two galvanized pipes

from the gas control valve, with a pipe wrench at the union in each

line. Also disconnect the piping

I remaining to the water heater. These

Q Attach a hose to the water heater drain 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 beater. Disconnect the tempera-

heater drain valve. Open a nearby hot ture-pressure relief valve drain fine.

water faucet which will refieve 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.

1 [ .c o..oN

Thewaterpassingout_ maybeextremelyhot.I I Mineralbuildupor sed_accumulated in theold

Toavoidbeingscalded,makesureallconnectionsare tight andI |water heater.Thiscausesthewater heaterto bemuchheavier

thatthewaterflow isdirectedawayfromanyperson. ] [thannormalandthisresidue,ifspilledout,couldcausestaining.

Instructions for Installation (cont'd)

Typical Installation

Vacuum Relief required

by some codes

VENTTO (refer to local codes)

OUTDOORS

J COLDWATERINLET

TEMPERATURE-

PRESSURE

RELIEFVALVE

DISCHARGEPIPE

(Do not capor plug)

PROVIDEA 6"AIR GAP

BETWEENTHEENDOF

THEDISCHARGEPIPE

WATEROUTLET AND DRAIN

7' power cord

(Factorysupplied)

This appliance has been design certified as complying with American National Standard/CSA Standard forwater heaters and is

consideredsuitable for:

Water(Potable)Heating: All models are%onsideredsuitableforwater(potable)heating."

AWARNING AWARNING [

When the system requires water at temperatures Thiswater heater shallnot be connectedto any heat-

ing systemsor component(s)previouslyusedwith a I

higherthan requiredfor other uses,the hotwater sys- non-potablewater heating appliance. I

tern mayrequirea meanssuchasa mixingvalvetobe

installedto temper the water at certainpointsof use.

Some people are more likely to be permanently

injured by hot water than others; these includethe AWARNING

elderly,children,the infirm,or the physically/mentally Toxicchemicalssuchasusedfor treatmentof boilersorI

handicapped. Before immersing yourself or anyone non-potablewater heating appliancesshall never be

ture.elseinWARNING:hOtwater,HOTTERbesureWATERt°checkiNcREASEsthewater THEtempera'RISKintroducedintoa potablewaterspaceheatingsystem.

OF SCALDINJURY.(Alsosee"TemperatureRegulation" NOTE: To protectagainstuntimelycorrosionof hot and

section)Mixing valvesare availableat plumbingsup- coldwaterfittings,iris stronglyrecommendedthatdi-elec-

plyor hardwarestores.Followmanufacturersinstruc- tric unionsor couplingsbe installedon thiswater heater

tionsfor installationof thesevalves, whenconnectedtocopperpipe.

Instructions for Installation (cont'd)

Locating the New Water

Heater

Youshould carefitlly choose an indoor location for the new water

heater, because the placement is a very important consideration

WARNING

for the safety of the occupants in the building and for the most DO not use an extension cord. If there is not a suit-I

economical use of the appliance. Thiswaterheaterisnotforuse able receptacle and/or local codes prohibit use of a ]

in manufactured(mobile)homesoroutdoorinstallation, power cord, f eld wit ng must be prey ded. ]

Whether replacing an old water heater or putting the water heater

in a new location, the following critical points must be observed. A CAUTIO N

The location selected should be indoors asclose aspractical to WATER HEATERS EVENTUALLY LEAK: Installation of

theventtermination point, and ascentralizedwith thewater the water heater must be accomplished in such a

manner that if the tank or any connections should

piping system aspossible. The water heater, as all water leak, the flow of water will not cause damage to

heaters, will eventually leak. Do not install without adequate the structure. For this reason, it is not advisable to

drainage provisionswhere water flowwill cause damage, install the water heater in an attic or upper floor.

When such locations cannot be avoided, a suitable

40,000 BTU/HR INPUT MODELS - If vented through an drain pan should be installed under the water

outside wall or through the roof, the 3" vent piping cannot heater. Drain pans are available at your local hard-

exceed a total of 115 feet (50 feet if optional 2" vent piping is ware store. Such a drain pan must be not greater

used), including vertical and horizontal runs with one 90° than 1½ inches deep, have a minimum length and

elbow. If more elbows are required, the venting distance must width of at least 2 inches greater than the water

be reduced 5 feet for every90°elbow. See page 22 forvent heater dimensions and must be piped to an ade-

chart, quate drain. The pan must not restrict combustion

air flow. Under no circumstances is the manufactur-

70,000 AND 75,000 BTU/HR INPUT MODELS- If vent- er to be held liable for any water damage in con-

edthrough an outside wall or through the root the 3" vent nection with this water heater.

piping cannot exceed a total of V0feet (110 feet if optional 4"

vent piping is used), including vertical and horizontal runs • The location selection must provide adequate clearances

with one 90°elbow. If more elbowsare required, the venting for servicing and proper operation of the water heater.

distance must be reduced 5 feet for every 90°elbow. See page

22 for vent chart.

Vent piping cannot slope downward and horizontal runs A WARNING

require _/f'per five foot rise. All horizontal runs require ade- INSTALLATIONS IN AREAS WHERE FLAMMABLE LIQ-

quate support at 3 V2foot intervals andvertical runs supported UIDS (VAPORS) ARE LIKELY TO BE PRESENT OR

at 5 foot intervals. STORED (GARAGES, STORAGE, AND UTILITY AREAS,

ETC): Flammable liquids (such as gasoline, solvents,

The water heaterrequires its own (separate)venting system, propane (LP) or butane, etc.), all of which emit

It cannot be connected to an existing vent pipe or chimney. It flammable vapors, may be improperly stored or

must terminate to the outdoors. Whenever possible terminate used in such areas. The gas water heater ignitor or [

the vent on the leeward side of the building if vented through main burner can ignite such vapors. The resulting [

an outside wall. NOTE: Condensation maybe created, at flashback and fire can cause death or serious burns I

times, asthecombustiongasesexit thevent capanddiscol- to anyone in the area, as well as property damage.

If installation in such areas is your only option,]

orationofsurfaceslnproximitytotheventcapmayoccur, then the installation must be accomplished in a]

way that the ignitor and main burner flame are ele- I

vated from the floor at least 18 inches. While this

AWARNING may reduce the chances of flammable vapors from

The power vent water heater requires its own (sepa- a floor spill being ignited, gasoline and other

rate) venting system. It cannot be connected to an ex- flammable substances should never be stored or

isting vent pipe or chimney. It must he terminated to used in the same room or area containing agas

the outdoors. Failureto properly install the venting sys-[ water heater or other open flame or spark produc-

tern can result in asphyxiation, a fire or explosion and ing appliance.

cancause DEATH,SERIOUSBODILYINJURY,ORPROPER- i NOTE: Flammable vapors may be drawn by air currents

TY DAMAGE. Ifrom other areas of the structure to the appliance.

AWARNING

• The water heater comes equipped with a 7 foot power Propellants of aerosol sprays and volatile com-

cord which can be used to connect to a 110/120 volt pounds, (cleaners, chlorine based chemicals, refrig-

power source if(l) local codes allow, and (2) there is a erants, etc.) in addition to being highly flammable

in many cases, will also change to corrosive

three prong receptacle available. This unit must have a hydrochloric acid when exposed to the combustion

grounded outlettooperate, products of the water heater. The results can be

hazardous, and also cause product failure.

Instructions for Installation (cont'd)

Locating the New Water

Heater (cont'd)

_kWARNING Combustion Air and Ventilation

This water heater must not be installed directly on

carpeting. Carpeting must be protected by a metal When determining the installation location for a power vent

or wood panel beneath the appliance extending water heater, snow accumulation and drifting should be con-

beyond the full width and depth of the appliance sideredin areaswhere applicable.

by at least 3 inches (76.2mm) in any direction, or if

the appliance is installed in an alcove or closet, the VENTINGCLEARANCES

entire floor must be covered by the panel. Failure

to heed this warning may result in a fire hazard. • 0" clearance for 3" (and optional 2" and 4") PVC, ABS or

CPVC Schedule 40 vent piping from combustible surfaces.

• 12" minimum from the ground, 9" ceiling overhangs.

•,WARNING Figure 2.

Minimum clearances between the water heater and

combustible and noncombustible construction are 0" . The Power Vent outlet terminal shall terminate at least 36"

at the sides and rear, 5 inches from front of jacket to above any forced air inlet into the building located within 10

closet door, and 0" from the vent pipe. Clearance from feet. Figure 3a.

the top of the jacket is 14" (12" on some models).

Provide 24 inches front clearance for servicing and • The Power Vent outlet terminal shall terminate at least 4 feet

adequate clearance between the jacket top and ceil- below,4 feet horizontally from or 1 foot aboveany door,window

ing for servicing the flue area. Refer to the label on or gravity air inlet into the building. Figure 3a.

the water heater adjacent to the gas control valve for

all clearances. (see Figure 1). = 18" minimum from other natural draft (gravity) direct vent,

power vent or power direct vent appliance inlet and/or outlet

0" vent(s) when directly above or 135 °to either side of ceuter

/VENTILATIONI H _ E1 ml _ ¢_-- • 24" minimum from any appfiance inlet and/or outlet vents

AIR i i S_MIN.

/ OPEN'NGsOI 0"HIN. _......_ 5" when direcdy below or 45°to either side of center line. Figure

I { I TOPVIEW I ' 3b.

_ orCtC_ET roPw_vo"_N.

WITHOU T DOOR OF CLOSET

'HAX, WITHDOOR • 18" minimum in all directions from any obstruction that may

FRONTVIE_N _IN

OFDOOR interfere. Figure 3c.

I Figure 1 I A,R DUCT • The location selection must provide clearances for servicing

and proper operation of the water heater. Figure 4.

_, WARNING • Vent termination must not be within 4 feet of any items such

A gas water heater cannot operate properly with- as gas meters, gas valves or other gas regulating equipment.

out the correct amount of air for combustion. Do • The venting system must be installed in a manner which

not install in a confined area such a closet, unless allows inspection of the installation of the venting pipes and

you provide air as shown in the "Facts to Consider joints aswell asperiodic inspection after installation as

About the Location" section. Never obstruct the

flow of ventilation air. If you have any doubts or required by ANSI Standards.

questions at all, call your gas company. Failure to

provide the proper amount of combustion air can

result in a fire or explosion and can cause DEATH, AWARNING any

SERIOUS BODILY INJURY, OR PROPERTY Vent termination must not be within 4 feet of

DAMAGE. items such asgas meters, gas valves or other gas

u ating equ pment, reg"

AWARNING

If this water heater will be used in beauty shops, AWARNING Ibarber shops, cleaning establishments, or self-ser-

vice laundries with dry cleaning equipment, it is Failure to have required clearances between water

imperative that the water heater or water heaters heater and combustible material will result in a fire

be installed so that combustion and ventilation air hazard.

be taken from outside these areas. Refer to the

"Facts to Consider About the Location" section of

this manual and also the latest edition of the

National Fuel Gas Code, ANSI Z223.1, also referred

to as NFPA 54 for specifics provided concerning air

required.

Instructions for Installation (cont'd)

Must maintain

adequate service -_- ........ --

and maintenance /" ""

9" rain. from accessibility. "",,

any overhang

- q.of Flue

[ Figure 4 ] //"_'Range of degrees

.. ./" available for vent

................ pipe installation.

Venting Through Roof- Clearances

I Figure 2 I 0" clearance for 3" (or optional 2" and 4") PVC, ABS, or

CPVC Schedule 40 piping from combustible surfaces.

• The Power Vent outlet terminal shall terminate at least 18

inches above the roof surface. Figure 5.

_ ,_ • The location selection must provide clearances for servic-

ing and proper operation of the water heater. Figure 4.

• The venting system must be installed in a manner which

_. _48__ _ _i2, anows inspection of the installation of the venting pipes and

LESSTHAN joints aswell as periodic inspection after installation as

._" required by ANSI Stand_ds.

V_ £_ _in. 45° VENT CA_[i/90° STREETELLW/SCREEN

POWER VENT TERMINAL /f-_-.,

-- : "_ _ '_, [ Figure5 ]

2, CombustionAir andVentilation

_ for AppliancesLocatedin

RAFT (GRAVITY)

' _--_RTUc_AvLEDT, POWERVENT, Unconfined Spaces

_7 OR POWER DIRECT VENT

___. APPLIANCEINLETAND/OR Unconfined Space is a space whose volume is not Jess than

Figure 3b I OUTLETVENT(S). 50 cubic feet per 1,000 Btu per hour of the aggregate inputJ

rating of all appliances installed in that space. Rooms com-

municating directly with the space in which the appliances are

installed, through openings not furnished with doors, are

_ vent terminal 18"to wail or other considered a part of the unconfined space

obstructionsthat may

interferewithventing. In unconfined spaces in buildings, infdtration may be ade-

-_._18" min. • quate to provide air for combustion, ventilation and dilution

of flue gases. However, in buildings of tight construction (for

ventterminal example, weather stripping, heavily insulated, caulked, vapor

rn}in, barrier, etc.), additional air may need to be provided using the18"

methods described in Combustion Air and Ventilation for

Figure I cornerofbuilding Appliances Located in Confined Spaces, b.

Instructions for Installation (cont'd)

CombustionAir andVentilation 1.Whendirectlycommunicatingwiththeoutdoors,each

opening shall have a minimum free area of 1 square inch

for

AppliancesLocatedin per 4,000 BTU per hour oftotalinput rating of all equip-

ConfinedSpaces ment in the enclosure. (See Figure 7.)

Confined Space is a space whose volume is less than 50 cubic 2. When communicating with the outdoors through vertical

feet per 1,000 Btu per hour of the aggregate input rating of all ducts, each opening shall have a minimum free area of 1

appliances installed in that space, square inch per 4,000 BTU per hour of total input rating of

a. ALLAIR FROM INSIDE BUILDINGS: all equipment in the enclosure. (See Figure 8.)

(See Page 12 Figure 1, and Figure 6 below) (each er=dof attic)

The confined space shall be provided with two permanent

openings communicating directly with an additional

room(s) of sufficient volume so that the combined volume

of all spaces meets the criteria for an unconfined space.

The total input of all gas utilization equipment installed in

the combined space shall be considered in making this r _ (ends _"abovefloor)

determination. Each opening shall have a minimum free [ Figure 8 J

area of one square inch per 1,000 BTU per hour of the

total input rating of all gas utilization equipment in the 3. When communicating with the outdoors through horizon-

confined space, but not less than 100 square inches. One tal ducts, each opening shall have a minimum free area of 1

opening shall commence within 12 inches of the top and square inch per 2,000 BTU per hour of total input rating

one commencing within 12 inches of the bottom of the of all equipment in the enclosure. (See Figure 9.)

enclosure,

VENT THROUGH _ ROOF

ROOF

: i VENTTO

,[I

, I OOTOOORSI 1

OPENINGS WATER Figure 9

I _ HEATER

[ Figure6 ] >A

4. When ducts are used, they shall be of the same cross-sec-

tional area as the free area of the openings to which they

connect. The minimum short side dimension of rectangular

b. ALL AIR FROM OUTDOORS: (see Figures 7-9) air ducts shall not be less than 3 inches. (See Figure 9.)

The confined space shall be provided with two permanent 5. Louvers and Grilles: In calculating free area, consideration

openings, one commencing within 12 inches of the top shall be given to the blocking effect of louvers, grilles or

and one commencing within 12 inches from the bottom of screens protecting openings. Screens used shall not be

the enclosure. The openings shall communicate directly, or smaller than 1/4inch mesh. If the free area through a design

by ducts, with the outdoors or spaces (crawl or attic) that of Iouver or grille is known, it should be used in calculating

freely communicate with the outdoors, the size opening required to provide the free area specified.

VENTILATION If the design and free area is not known, it may be assumed

(eachendofattic) VENTTHROUGH that wood louvers will be 20-25 percent free area and metal

ROOF

louvers and grilles _11 have 60-75 percent free area.

Louvers and grilles shall be fixed in the open position or

interlocked with the equipment so that they are opened

automatically during equipment operation.

6. Special Conditions Created by Mechanical Exhausting or

Fireplaces: Operation of exhaust fans, ventilation systems,

Figure 7 ] clothes dryers orfireplaces may create conditions requiring

special attention to avoid unsatisfactory operation of

VENTILATIONLOUVERS installed gas utilization equipment.

Instructions for Installation (cont'd)

Water Piping

AWARNING 2. Look at the top cover of the water heater. The cold water

HOTTER WATER CAN SCALD: Water heaters are inlet is marked cold. Connect the cold water pipe to the

intended to produce hot water. Water heated to a coldwaterinletofthewaterheater.

temperature which will satisfyclotheswashing,

dish washing, and other sanitizing needs can scald NOTE: This water heater issuper insulated to minimize

and permanently injure you upon contact. Some

people are more likely to be permanently injured by heat loss from the tank. Further reduction in heat loss

hot water than others. These include the elderly, canbeaccompllshedbyinsulatingthehotwaterlines

children, the infirm, or physically/mentally handi- _om the waterheater.

capped. If anyone using hot water in your home fits

into one of these groups or if there is a local code or

state law requiring a certain temperature water at

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

cautions. In addition to 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 VENTTO

at the water heater. Mixing valves are available at OUTDOORS

_alumbing supply or hardware stores. Follow manu-

cturers instructions for installation of the valves. COLDINLET

Before changing the factory setting on the thermo- WATERLINE

stat, read the "Temperature Regulation" section in

this manual. SHUTOFF J

This water heater shall not be connected to any heating sys-

tems or component(s) used with a non-potable water heating

appliance.

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

TEMPERATURE-

such as one having a back-flow preventer, check valve, water PRESSURERELIEF

meter with a check valve, etc.., in the cold water supply; VALVE

means shall be provided to control thermal expansion. J

Contact the local utility or call Maytag Customer Service HOTOUTLET

Center at 1-800-788-8899 for an authorized installer on how TOHOUSE

to control this situation.

NOTE: To protect against untimely corrosion of hot and

cold water fittings, it is strongly recommended that di-elec-

tric unions or couplings be installed on this water heater

when connected to copper pipe. DISCHARGEPIPE

(Donot capor plug)

The illustration shows the attachment of the water piping to PROVIDEA6" AIR

GAPBETWEENTHE

the water heater. The water heater is equipped with 3/4inch ENDOFTHE

DISCHARGEPiPE

water connections for 40,000 and Btuh models and 1 inch ANDDRAIN

water connections for 70,000 and 75,000 Btuh models.

NOTE: If using coppertubing, solder tubing to an adapter

before attaching the adaptor to the cold water inlet connection.

Do not solder the cold water supply line directly to the cold

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

1. Look at the top cover of the water heater. The water outlet

is marked hot. Connect the hot water pipe to the hot

water outlet on the water heater.

Instructions for Installation (cont'd)

Temperature-Pressure Relief Valve

_WARNING AWARNING

At the time of manufacturethis water heater was provid- The temperature-pressure relief valve must be manu-

ed with a combinationtemperature-pressuresrelief valve all)' operated at least once a year. Caution should be

certified by a nationally recognizedtestinglaboratory that taken to ensure that (1) no one is in front of or

maintains periodic inspection of production of listed around the outlet of the temperature-pressure relief

equipment or materials, as meeting the requirements for valve discharge line, and (2) the water manually dis-

ReliefValvesand Automatic GasShutoff Devicesfor Hot

charged will not cause any bodily injury or property

Water Supply Systems, and the latest edition of ANSI damage because the water may be extremely hot.

Z21.22 and the code requirements of ASME. If replaced, If after manually operating the valve, it fails to com-

the valve mustmeet the requirementsof localcodes,but pletely reset and continues to release water, immedi-

not lessthan a combination temperature and pressure ately close the cold water inlet to the water heater,

relief valve certified as meeting the requirements for follow the draining instructions, and replace the

ReliefValvesand Automatic Gas Shutoff Devicesfor Hot temperature-pressure relief valve with a new one.

Water Supply Systems,ANSIZ21.22 by a nationally recog-

nized testing laboratory that maintainsperiodicinspection

of productionof listedequipmentor materials.

The valve must be marked with a maximum set pressure

not to exceedthe marked hydrostaticworking pressureof

the water heater (150 Ibs./sq.in.)and a dischargecapacity

not lessthan the water heater input rate asshown on the

model rating plate. (Electric heaters - watts divided by

1000x 3415 equal BTU/Hr.rate.) COLD

Your localjurisdictional authority, while mandating the

useof a temperature-pressurerelief valve complyingwith

ANSIZ21.22 and ASME,may require a valve modeldiffer-

ent from the onefurnishedwith the water heater.

TEMPERATURE-PRES-

Compliancewith suchlocalrequirementsmustbesatisfied

SUREREUEFVALVE

by the installer or end user of the water heater with a /f

Iocallyprescribed temperature-pressure relief valve

installedin the designatedopening in the water heater in

placeof the factoryfurnishedvalve. HOT

For safe operation of the water heater, the relief valve

must not be removed from it's designated opening or -- DISCHARGEPIPE

lugged. (Donotcaporplug)

_perature-pressure relief valve must be installed PROVIDEA6" AIR

into the fitting of the water heater designatedfor GAPBETWEENTHE

'alve. Positionthe valve downward and provide ENDOFTHEDISCHARGEPIPE

tubing so that any dischargewill exit onlywithin 6 inches ANDDRAIN

above, or at any distance below the structural floor. Be

certain that no contact is made with any live electrical

part. The discharge opening must not be blocked or

reducedin size under any circumstances.Excessivelength,

over 30 feet, or use of more than four elbows can cause

restrictionand reducethe dischargecapacityof the valve.

No valve or other obstructionisto be placedbetween the

reliefvalve and the tank. Do not connecttubing directlyto RELIEF VALVE OPENING

dischargedrain unlessa 6" air gap isprovided.To prevent

bodilyinjury,hazard to life, or property damage,the relief "THISWATERHEATERISAPPROVEDWITHACOMBINATIONTEMPERATURE-

PRESSURERELIEFVALVE.FORSAFEOPERATIONOFTHEWATERHEATER,

valve must be allowed to dischargewater in quantities THERELIEFVALVE(S)MUSTNOTBEREMOVEDFROMITSDESIGNATED

shouldcircumstancesdemand. If the dischargepipe isnot POINTOFiNSTALLATiONORPLUGGED."

connected to a drain or other suitable means,the water YOURLOCALJURISDICTIONALAUTHORITy,WHILEMANDATINGTHEUSE

flow may causepropertydamage. OFA TEMPERATURE-PRESSURERELIEFVALVECOMPLYINGWITHANSi

The DischargePipe: z21.22ANDASME,MAYREQUIREAVALVEMODELDIFFERENTFROMTHE

• Must notbe smallerin sizethan the outlet pipe size of ONEFURNISHEDWITHTHEWATERHEATER.

the valve, or have any reducing couplings or other COMPLIANCEWITHSUCHLOCALREQUIREMENTSMUSTBESATISFIEDBY

restrictions. THEINSTALLERORENDUSEROFTHEWATERHEATERWITHALOCALLY

PRESCRIBEDTEMPERATURE-PRESSURERELIEFVALVEINSTALLEDINTHE

• MUStnot beplugged or blocked. DESIGNATEDOPENINGINTHEWATERHEATER.

• Must be of material listedfor hot water distribution.

SEEMANUALHEADING- "TEMPERATURE-PRESSURERELIEFVAWES"FOR

• Must be installedso as to allow complete drainage of INSTALLATIONANDMAINTENANCEOFRELIEFVALVE,DISCHARGELINE

both the temperature-pressurerelief valve, and the dis- ANDOTHERSAFETYPRECAUTIONS.

chargepipe.

• Must terminate at an adequatedrain.

• Must not have any valve between the relief valve and

tank.

Instructions for Installation (cont'd)

Filling the Water Heater

I If you are not familiar with electric codes and practices, or if

&CAUTION

Never use this water heater unless it is completely Ii you have any doubt in your ability to connect the wiring to

filled with water. Toprevent damage to the tank, I this water heater, obtain the service of a competent electrician

the tank must be filledwith water. Water must flow or contact your local electric utility.

from the hot water faucet before turning "ON" gas I

to the water heater. I

_,WARNING

To fill the water heaterwith water: WATER HEATERS EQUIPPED FOR ONE TYPE VOLT-

Close the water heater drain valve by turning the handle to AG g ONLY: This water heater is equipped for

the right (clockwise). The drain valve is on the lower front 1101120 volts only. DO NOT USE THIS WATER

HEATER WITH ANY VOLTAGE OTHER THAN THE

of the water heater. ONE SHOWN ABOVE. Failure to use the correct volt-

- Open the cold water supply valve to the water heater, age can cause problems which can result in DEATH,

NOTE: The cold water supply valve must be left open SERIOUS BODILYINJURY OR PROPERTY DAMAG E. If

you have nay questions or doubts consult your

when the water heater is in use. electric company.

• To insure complete filling of the tank, allow air to exit by

opening the nearest hot water faucet. Allow water to run

until a constant flow is obtained. This will let air out of the _k CAUTION

water heater and the piping. If wiring from the fuse box or circuit breaker box was

aluminum for the old water heater, replace it with

Check all new water piping for leaks. Repair as needed, copper wire. If you wish to reuse the existing alu-

minum wire, have the connection at the water heater

Wiring made by a competent electrician. Contact a local elec-

trical contractor and/or the local electric utility.

USE WITH POWER CORD

The water heater comes equipped with a 7 foot power cord USE WITHOUT POWER CORD

which can be used to connect to a 110/120 volt power source if,

(1) local codes allow, and (2) there is a three prong grounded If power cord cannot be used, then follow these wiring

receptacle available. This unit must have a grounded outlet to instructions.

operate.

7' MAXIMUM 1. Provide a way to easily shut off the electric power when

CORDLENGTH I II working on the water heater. This could be with circuit

(F a

breaker or fuse block in the entrance box or a separate dis-

_ connect switch.

2. Install and connect a circuit directly from the main fitse or

circuit breaker box. This circuit must be the right size and

have its own fuse or circuit breaker.

/WIRE NUTS

water heater and junction box when the power cord is not used.

&WARNING

Do not use an extension cord. If there is not a suit- I

able receptac!e and/or local codes prohibit use of a co

power cord, field wiring must be provided.

You must provide all wiring of the proper size outside of the GROUNDSCREW _"_1[/ /11 I1l[ S

water heater. You must obey local codes and electric company

requirements when you install this wiring.

Instructions for Installation (cont'd)

Wiring (cont'd)

USE WITHOUT POWER CORD (cont'd)

3. A standard 1/2"conduit opening has been made in the grounded, A green ground screw has been provided on the

water heater junction box for the conduit connection, water heater's junction box. Connect ground wire to this

location. For complete grounding details and all allowable

4. Use wire nuts and connect the power supply wiring to the exceptions, refer to the latest edition of the National

wires inside the water heater's junction box. Electrical Code.

5. The water heater must be electrically "grounded" by the 6. Replace the wiring junction cover using the screw

installer. The unit will not operate unless it is properly provided.

ACAUTION

Label all wires prior to disconnection when servic-

ing controls. Wiring errors can cause improper and

dan_lerous operation, Verify proper operation after

serv cing. J

Instructions for Installation (cont'd)

Venting

_,WARNING _,WARNING

To insure proper venting of this gas-fired water Chemical vapor corrosion of the flue and vent sys-

heater, the correct vent pipe diameter must be uti- tem may occur if air for combustion contains certain

lized. Any additions of other gas appliances on chemical vapors. Spray can propellants, cleaning sol-

vent with this water heater will adversely affect vents, refrigerator and air conditioner refrigerants,

the operation of the water heater, swimming pool chemicals, calcium and sodium chlo-

ride, waxes, bleach, and process chemicals are typi-

cal compounds which are potentially corrosive.

The combustion and ventilation air flow must not be obstructed

The power vent water heater requires its own (sepa- 3½" _.

rate) venting system. It cannot be connected to an

existing vent pipe or chimney. It must be terminated

to the outdoors. Failure to properly install the vent-

ing system can result in asphyxiation, a fire or explo-

sion and can cause DEATH, SERIOUS BODILY INJUR_

OR PROPERTY DAMAGE.

I I

At,WARNING ]

Obstructed or deteriorated vent systems may pre- Horizontal runs must be securelysupported at 3½ foot inter-

sent a serious health risk or asphyxiation, vals and vertical runs supported at 5 foot intervals

VENTING THROUGH AN OUTSIDE WALL

AWARNING

The vent pipe fro_heater must slope

upward '/8inch per five linear feet. 75 GALLON 70,000 AND 75,000 BTU/HR, MODELS

ONLY (See rating plate for BTU/HR rating)

All vent gases must be completely vented to the outdoors of the 3" PVC, ABS or CPVC Schedule 40 vent piping:

structure (dwelling).

• A 3" PVC Schedule 40-45 °vent cap with wire screen is

supplied with the water heater.

_ _ [_ • Aa"PVC, ABSorCPVCScheduleeO90°streeteU;used

MIN RISE_" to connect the vent pipe to the water heater when the vent

PERFIVEFEET pipe is to be turned horizontally directly offthe blower (sup-

plied locally).

• 3" PVC, ABS or CPVC Schedule 40 pipe (must be sup-

plied locally).

A,WARNING 3" PVC, ABS OR CPVC

Failure to have required clearances between water SCHEDULE40- 90*

heater and combustible material will result in a fire STREETELBOW _ [ I

hazard. _- 3" PVC, ABS OR CPVC

SCHEDULE 40 PIPE VENT CAP

WITH SCREEN

AWARNING I

Be sure vent pipe is properly connected to prevent I

escape of dangerous flue gases which could cause

deadly asphyxiation. [ ]

Instructions for Installation (cont'd)

Venting (cont'd)

VENTING THROUGH AN OUTSIDE WALL (cont'd) * The water heater requires its own (separate) venting system.

75 GALLON 70,000 AND 75,000 BTU/HR MODELS

ONLY * 4" and Y' PVC, ABS or CPVC Schedule 40 piping and fit-

tings are acceptable materials for the vent system on all 75

• The water heater requires its own (separate) venting system, gallon 70,000 and 75,000 BTU/HR models.

• 3" PVC, ABS or CPVC Schedule 40 piping and fittings are ° It cannot be connected to existing vent piping or chimney.

acceptable materials for the vent system on all 75 gallon

70,000 and 75,000 BTU/HR models. • It must terminate horizontally to the outdoors.

• It cannot be connected to existing vent piping or chimney.

ALL 40 AND 50 GALLON 40,000 BTU/HR MODELS

• It must terminate horizontally to the outdoors. ONLY

3" PVC, ABS or CPVC Schedule 40 vent piping:

75 GALLON 70,000 AND 75,000 BTU/HR MODELS

ONLY -- OPTIONAL 4" VENT PIPING • A 3" PVC Schedule 40-45 °vent cap with wire screen is

4" PVC, ABS or CPVC Schedule 40 vent piping: supplied with the water heater.

• A 3" PVC, ABS or CPVC Schedule 40-90 °street ell; used

• A wire screen to fit a 4" PVC, ABS or CPVC Schedule 40- to connect the vent pipe to the water heater when the vent

45* vent cap is supplied with the water heater, pipe is to be turned horizontally directly offthe blower (sup-

• A 4" PVC, ABS or CPVC Schedule 40-45 °vent cap plied locally).

(must be supplied locally). • 3" PVC, ABS or CPVC Schedule 40 pipe (must be sup-

* A 3" PVC, ABS or CPVC Schedule 40 pipe, minimum plied locally).

length of 3" (must be supplied locally), to make vent con-

nection at the blower outlet.

3"PVC,ABSORCPVC

SCHEDULE L-_

• A 4" to 3" PVC, ABS or CPVC Schedule 40 reducer (must 4090°EL,OWr J I I I

be supplied locally). 3" PVC,ABSORCPVC

SCHEDULE40 PIPE VENTCAP

• A 4" PVC, ABS or CPVC Schedule 40-90 °street ell; used _ WITHSCREEN

to connect the vent pipe to the reducer when the vent pipe is

to be turned horizontally offthe blower (supplied locally). _ I

• 4" PVC, ABS or CPVC Schedule 40 pipe (must be sup-

plied locally). • The water heater requires its own (separate) venting

system.

4"PVC,ABSORCPVC

4"PVC,ABSORCPVC SCHEDULE40 PiPE • 3" PVC, ABS or CPVC Schedule 40 piping and fittings

SCHEDULE4090°/_-_

t ,, [ ] _ are acceptable materials for the vent system on all 40 and

STREETELBOW

50 gallon 40,000 BTU/HR models.

4"VENTCAP

[_4" TO3" PVC,ABSOR

CPVCREDUCER WITHSCREEN • It cannot be connected to existing vent piping or

_] 3"PVC,ABSORCPVCSCHEDULE40 chimney.

PIPE(MINIMUMLENGTH3")

• It must terminate horizontally to the outdoors.

t i

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Maytag HJ640NOVET User manual

Brand: Maytag

Model: HJ640NOVET

Category: Water heaters & boilers

Type: User manual

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Maytag HJ640NOVET User manual

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