Maytag HVN41250P User manual

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www.maytagwaterheaters.com
PRINTEDINTHEU.S.A.0906 PART NO. 185378-001
FOR POTABLE WATER HEATING ONLY
NOT SUITABLE FOR SPACE HEATING
NOT FOR USE IN
MANUFACTURED (MOBILE) HOMES
POWER VENT
GAS WATER HEATER
USER’S GUIDE
Series Twelve
Model Numbers
HVN41240P HVP41240P
HVN41250P HVP41250P
HVN41250V HVP41250V
For Your Safety
ANODORANTISADDEDTOTHEGASUSEDBYTHIS
WATERHEATER.
C3 Technology® Gas Water Heaters meet
the newANSI Z21.10.1 standard that deals
with the accidental or unintended ignition
of flammable vapors, such as those
emitted by gasoline.
• Safety Instructions
• Installation
• Operation
• Care and Maintenance
• Troubleshooting
• Parts List

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SAFE INSTALLATION, USE AND SERVICE
Your safety and the safety of others is extremely important in the installation, use and servicing of this water heater.
Many safety-related messages and instructions have been provided in this manual and on your own water heater to warn you and
others of a potential injury hazard. Read and obey all safety messages and instructions throughout this manual. It is very
important that the meaning of each safety message is understood by you and others who install, use or service this water heater.
All safety messages will generally tell you about the type of hazard, what can happen if you do not follow the safety message and
how to avoid the risk of injury.
IMPORTANTDEFINITIONS
• Maytag Customer Service Center: TheMaytagCustomer ServiceCenter has theability equivalenttoa licensedtradesman inthefields of
plumbing,air supply, ventingandgassupply,including athoroughunderstandingoftherequirements oftheNational FuelGasCodeasit relates
totheinstallation ofgas fired waterheaters. The ServiceCenter alsohasa thoroughunderstanding of thisinstruction manual, andis ableto
performrepairs strictlyin accordance withthe serviceguidelinesprovided bythe manufacturer.
• Gas Supplier: The Natural Gas or Propane Utility or service who supplies gas for utilization by the gas burning
appliances within this application. The gas supplier typically has responsibility for the inspection and code approval of
gas piping up to and including the Natural Gas meter or Propane storage tank of a building. Many gas suppliers also
offerserviceand inspectionof applianceswithinthe building.

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SAFETY PRECAUTIONS

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SAFE INSTALLATION, USEAND SERVICE.................................................................................................................................... 2
SAFETY PRECAUTIONS ................................................................................................................................................................. 3
TABLE OF CONTENTS .................................................................................................................................................................... 4
CUSTOMER RESPONSIBILITIES................................................................................................................................................... 5
PRODUCT SPECIFICATIONS ......................................................................................................................................................... 5
MATERIALS AND BASICTOOLS NEEDED .................................................................................................................................... 6
TYPICALINSTALLATION.............................................................................................................................................................. 7-8
INSTALLATION INSTRUCTIONS .............................................................................................................................................. 9-22
Removing the Old Water Heater ............................................................................................................................................. 9
Facts to Consider About the Location .............................................................................................................................10-11
Insulation Blankets................................................................................................................................................................. 11
Combustion Air and Ventilation for Appliances Located in Unconfined Spaces ............................................................. 11
Combustion Air and Ventilation for Appliances Located in Confined Spaces ............................................................11-12
Water Piping...................................................................................................................................................................... 13-14
Temperature-Pressure Relief Valve ..................................................................................................................................... 14
Gas Piping............................................................................................................................................................................... 15
Sediment Traps ...................................................................................................................................................................... 16
Filling the Water Heater ......................................................................................................................................................... 16
Blower Assembly Installation ................................................................................................................................................ 16
Vent Connections to Blower Assembly................................................................................................................................. 17
Venting and Installation ................................................................................................................................................... 17-18
Condensation ......................................................................................................................................................................... 18
Maximum Vent Lengths .......................................................................................................................................................... 18
Venting ..................................................................................................................................................................................... 19
Vent Terminal Installation ................................................................................................................................................ 19-20
Vertical Vent Through Roof..................................................................................................................................................... 20
Vertical Vent Restrictions ....................................................................................................................................................... 20
Vent Pipe Preparation ...................................................................................................................................................... 21-22
OPERATING INSTRUCTIONS................................................................................................................................................. 23-24
Lighting and Operating Label ...............................................................................................................................................23
Temperature Regulation ........................................................................................................................................................ 24
FORYOUR INFORMATION............................................................................................................................................................ 25
Start Up Conditions ................................................................................................................................................................25
Operational Conditions.......................................................................................................................................................... 25
SERVICEANDADJUSTMENT ................................................................................................................................................. 26-27
Venting System Inspection ....................................................................................................................................................26
Burner Operation and Inspection ......................................................................................................................................... 26
Burner Cleaning ..................................................................................................................................................................... 26
Housekeeping ........................................................................................................................................................................ 26
Anode Rod Inspection............................................................................................................................................................ 27
Temperature-Pressure Relief Valve Operation ................................................................................................................... 27
Draining ...................................................................................................................................................................................27
Drain Valve Washer Replacement........................................................................................................................................27
Service ..................................................................................................................................................................................... 27
LEAKAGE CHECKPOINTS ............................................................................................................................................................ 28
TROUBLESHOOTING GUIDELINES ...................................................................................................................................... 29-30
PARTS ORDER LIST...................................................................................................................................................................... 31
WARRANTY..................................................................................................................................................................................... 32
TABLE OF CONTENTS

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Thank You for purchasing a Maytag water heater. Properly installed
and maintained, it should give you years of trouble free service. It is
strongly suggested that this new water heater be professionally
installed, contact Maytag Customer Service (1-800-788-8899) for
recommended installers.
AbbreviationsFoundInThisInstructionManual:
• CSA-CanadianStandardsAssociation
• ANSI-AmericanNational StandardsInstitute
• NFPA- NationalFireProtectionAssociation
• ASME-AmericanSocietyofMechanicalEngineers
• GAMA- GasApplianceManufacturer’sAssociation
• UL- UnderwritersLaboratoriesInc.
Thisgas-firedwater heateris listedby UnderwritersLaboratoriesInc.
underAmericanNationalStandard/CSAStandardforGasWaterHeaters
ANSIZ21.10.1 •CSA4.1(currentedition).
PREPARINGFORTHEINSTALLATION
1. Read the“SafetyPrecautions” section,page3 ofthismanual first
andthenthe entiremanualcarefully. If youdon’tfollow thesafety
rules, the water heater will not operate properly. It could cause
DEATH,SERIOUSBODILYINJURYAND/ORPROPERTYDAMAGE.
Thismanualcontainsinstructionsfor theinstallation,operation, and
maintenanceofthe gas-firedwaterheater. Italsocontainswarnings
throughout the manual that you must read and be aware of. All
warningsandall instructionsare essential tothe properoperation
ofthewaterheaterandyoursafety. Sincewecannotputeverything
on the first few pages, READ THE ENTIRE MANUAL BEFORE
ATTEMPTINGTOINSTALLOROPERATETHEWATERHEATER.
2. The installation must conform with these instructions and the local
code authority having jurisdiction. In the absence of local codes,
installationsshallcomplywiththeNationalFuelGasCodeANSIZ223.1/
NFPA54andtheNationalElectricalCode,NFPA70.Thesepublications
are available from The National Fire Protection Association, 1
BatterymarchPark,Quincy,MA02269.
3. The waterheaterwhen installedmust begrounded inaccordance
withthelocal codes,orin theabsenceof localcodes,the National
ElectricalCodeNFPA70.
4. Ifafterreadingthismanualyouhaveanyquestionsordonotunderstand
anyportionoftheinstructions,callthelocalgasutilityorMaytagCustomer
Service at 1-800-788-8899 for an authorized servicer.
5. Carefullyplantheplacewhereyouaregoing toputthewaterheater.
Correct combustion,vent action,andventpipeinstallation arevery
important in preventing death from possible carbon monoxide
poisoningand fires.
Examinethelocationtoensure thewater heatercomplies withthe
“FactstoConsiderAboutthe Location”section inthis manual.
6. ForCaliforniainstallationthiswaterheatermustbebraced,anchored,
or strapped to avoid falling or moving during an earthquake. See
instructionsfor correctinstallationprocedures. Instructionsmaybe
obtained from California Office of the StateArchitect, 400 P Street,
Sacramento,CA95814.
7. Massachusetts Code requires this water heater to be installed in
accordancewithMassachusetts248-CMR2.00:StatePlumbingCode
and248-CMR5.00.Formore informationseenext page.
8. Complieswith SCAQMDrule#1121 anddistrictshaving equivalent
NOxrequirements.
CUSTOMER RESPONSIBILITIES
PRODUCT SPECIFICATIONS
TANK RECOVERY MINIMUM
CAPACITY INPUT RATE GALS. VENTPIPE DIAMETER DIMENSIONSIN
MODEL IN GALS. TYPEOF RATE PERHOUR INCHES INCHES INCHES(mm)HEIGHT
NUMBER (LTRS) GAS (Btu/hr) @90°FRISE (mm) (mm) TOJACKETTOP
HVN41240P 40 (151) NATURAL 40,000 44 2 (51) 201/2(521) 55(1,397)
HVN41250P 50 (189) NATURAL 40,000 44 2 (51) 22(559) 563/4(1,441)
HVN41250V 50 (189) NATURAL 50,000 53 2 (51) 22(559) 56 3/4(1,441)
HVP41240P 40 (151) PROPANE 40,000 44 2 (51) 201/2(521) 55(1,397)
HVP41250P 50 (189) PROPANE 40,000 44 2 (51) 22(559) 563/4(1,441)
HVP41250V 50 (189) PROPANE 50,000 53 2 (51) 22(559) 563/4 (1,441)

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For all side wall terminated, horizontally vented power vent, direct vent, and power direct vent gas fueled water heaters
installed in every dwelling, building or structure used in whole or in part for residential purposes, including those owned or
operated by the Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet above finished
grade in the area of the venting, including but not limited to decks and porches, the following requirements shall be satisfied:
INSTALLATION OF CARBON MONOXIDE DETECTORS At the timeofinstallation of the sidewallhorizontal vented gasfueled
equipment, the installing plumber or gasfitter shall observe that a hard wired carbon monoxide detector with an alarm and
battery back-up is installed on the floor level where the gas equipment is to be installed. In addition, the installing plumber or
gasfitter shall observe that a battery operated or hard wired carbon monoxide detector with an alarm is installed on each
additional level of the dwelling, building or structure served by the sidewall horizontal vented gas fueled equipment. It shall
be the responsibility of the property owner to secure the services of qualified licensed professionals for the installation of
hard wired carbon monoxide detectors.
In the event that the side wall horizontally vented gas fueled equipment is installed in a crawl space or an attic, the hard wired
carbon monoxide detector with alarm and battery back-up may be installed on the next adjacent floor level.
In the event that the requirements of this subdivision can not be met at the time of completion of installation, the owner shall
have a period of thirty (30) days to comply with the above requirements provided that during said thirty (30) day period, a
battery operated carbon monoxide detector with an alarm shall be installed.
APPROVED CARBON MONOXIDE DETECTORS Each carbon monoxide detector as required in accordance with the above
provisions shall comply with NFPA 720 and be ANSI/UL 2034 listed and CSA certified.
SIGNAGE A metal or plastic identification plate shall be permanently mounted to the exterior of the building at a minimum
height of eight (8) feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled heating
appliance or equipment. The sign shall read, in print size no less than one-half (1/2) inch in size, “GAS VENT DIRECTLY
BELOW.KEEPCLEAROFALLOBSTRUCTIONS.”
INSPECTION The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall not approve the
installation unless, upon inspection, the inspector observes carbon monoxide detectors and signage installed in accor-
dance with the provisions of 248 CMR 5.08(2)(a) 1 through 4.
EXEMPTIONS: The following equipment is exempt from 248 CMR 5.08(2)(a)1 through 4:
1. The equipment listed in Chapter 10 entitled “Equipment Not Required To Be Vented” in the most current edition of NFPA 54
as adopted by the Board; and
2. Product Approved side wall horizontally vented gas fueled equipment installed in a room or structure separate from the
dwelling, building, or structure used in whole or in part for residential purposes.
MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM PROVIDED Whenthe manufacturer ofProduct
Approved side wall horizontally vented gas equipment provides a venting system design or venting system components with
the equipment, the instructions provided by the manufacturer for installation of the equipment and the venting system shall
include:
1. Detailed instructions for the installation of the venting system design or the venting system components; and
2. A complete parts list for the venting system design or venting system.
MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM NOT PROVIDED When the manufacturer of a
ProductApproved side wall horizontally vented gas fueled equipment does not provide the parts for venting the flue gases, but
identifies “special venting systems,” the following requirements shall be satisfied by the manufacturer:
1. The referenced “special venting system” instructions shall be included with the appliance or equipment installation
instructions; and
2. The “special venting systems” shall be Product Approved by the Board, and the instructions for that system shall include
a parts list and detailed installation instructions.
A copy of all installation instructions for all Product Approved side wall horizontally vented gas fueled equipment, all venting
instructions, all parts lists for venting instructions, and/or all venting design instructions shall remain with the appliance or
equipment at the completion of the installation.
INSTALLATIONREQUIREMENTSFORTHECOMMONWEALTHOFMASSACHUSETTS

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MATERIALS AND BASIC TOOLS NEEDED
Accessories
To simplifytheinstallationMaytaghasavailable theinstallationparts shownbelow.Youmay ormaynot needalloftheseaccessories dependingon
your type of installation. Call Maytag Customer Service at 1-800-788-8899 for an authorized installer.
EXPANSION TANKS FOR THERMAL EXPANSION CONDITIONS
AVAILABLEIN2 GALLONS(7.6LITERS), Part No.66001013AND5
GALLONS(18.9 LITERS),PartNo. 66001014CAPACITY.
DRAIN PANSAVAILABLE IN 22” (559 mm) DIAMETER (PART NO.
66001011) FOR WATER HEATERS HAVINGA DIAMETER 20” (508
mm)ORLESS, 24”(610mm)DIAMETER(PARTNO. 66001105) FOR
WATERHEATERSHAVINGADIAMETER22”(559mm)ORLESSAND
28”(711mm)DIAMETER(PARTNO.66001012)FORWATERHEATERS
HAVINGADIAMETER26” (660 mm)OR LESS.
Tools
You may or may not need all these tools, depending on your type of
installation.Thesetoolscanbepurchasedatyourlocalhardwarestore.
• Pipe Wrenches (2) 14” (356 mm)
• Screwdriver
• Tin Snips
• 6’(1.82 m) Tape or Folding Ruler
• Garden Hose
• Drill
• Pipe Dope or Teflon Tape
Additional Tools Needed
When Sweat Soldering
• Tubing Cutters or Hacksaw
• Propane Torch
• Soft Solder
• Solder Flux
• Emery Cloth
• Wire Brushes
SLOT-HEAD SCREWDRIVER
PHILLIPS SCREWDRIVER TIN SNIPS
PIPE WRENCH
PIPE DOPE
(SQUEEZE TUBE)
USE FOR WATER AND GAS
CONNECTIONS
DRILL
GARDENHOSE 6FOOT TAPE
ROLL OF TEFLON
TAPE (USE ONLYON
WATERHEATER
CONNECTIONS)
HACKSAW
3/4” (19 mm) WIRE BRUSH
1/2” (13 mm) WIRE BRUSH SOLDER FLUX
ROLL OF LEAD-FREE
SOFT SOLDER
TUBING CUTTER PROPANE
TORCH
ROLL OF
EMERYCLOTH

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TYPICAL INSTALLATION
GET TO KNOW YOUR WATER HEATER - GAS MODELS
A Vent Pipe–Exhaust
B Vent Terminal
C Vent Adapter-Rubber Boot
D Blower Assembly
E Cold Water Inlet
F Inlet Water Shut-off Valve
G Union
H Inlet Dip Tube
J Anode**
FIGURE1.
K Hot Water Outlet
L Outlet Receptacle (115 VAC)
M Temperature-Pressure Relief Valve
N Flue
O Flue Baffle Assembly**
P Insulation
Q Control Harness
R Rating Plate
S Gas Supply
T Manual Gas Shut-off Valve
U Ground Joint Union
V Drip Leg (Sediment Trap)
W Drain Valve
X Gas Valve-Thermostat
Y Drain Pan
Z Air Intake Screen - Base Pan
AA Inner Door
BB Outer Door
CC HSI Burner Assembly
DD Air Intake Screen -
Blower Assembly
EE FV Sensor Assembly
NATURAL HOT SURFACE IGNITER & MAIN BURNER
HOT
SURFACE
IGNITOR
SENSOR
PROPANEHOTSURFACEIGNITER& MAIN BURNER
TEMPERATURE INDICATORS
TEMPERATUREADJUSTMENT BUTTONS
HOT
SURFACE
IGNITOR
SENSOR
*CAUTION: 115 VAC IN CONTROL HARNESS
AND INSIDE OUTER DOOR
* ALL PIPING MATERIALS TO BE SUPPLIED BY CUSTOMERS.
** LOCATED UNDER THE BLOWERASSEMBLY.
GAS MODELS
WITH HOT SURFACE IGNITION
& 2", 3" OR 4" PVC VENT CAPABILITY

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TYPICAL INSTALLATION
FIGURE2.
MIXING VALVE USAGE
HOTTERWATERCANSCALD:
Water heaters are intended to produce hot water. Water heated to a
temperature which will satisfy space heating, clothes washing, dish
washing,andother sanitizingneeds canscaldand permanentlyinjure
youuponcontact. Somepeoplearemorelikelytobepermanentlyinjured
byhotwaterthanothers. Theseincludetheelderly,children,theinfirm,or
physically/mentallyhandicapped. Ifanyoneusinghotwaterinyourhome
fits into one of these groups or if there is a local code or state law
requiringacertaintemperaturewateratthehotwatertap,thenyou must
takespecialprecautions.Inadditiontousingthelowestpossibletemperature
setting that satisfies your hot water needs, a means such as a *Mixing
Valve, shallbeused atthehot watertapsusedby thesepeopleor atthe
waterheater. Mixingvalvesareavailableatplumbingsupplyorhardware
stores.Consult Maytag Customer Service (1-800-788-8899). Follow
mixing valve manufacturer’s instructions for installation of the valves.
Before changing the factory setting on the thermostat, read the
“TemperatureRegulation”sectioninthismanual,seeFigure26.

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1. Turn“OFF”thegassupplytothewater
heater.
If the main gas line Shut-off valve
servingallgasappliancesisused,also
shut“OFF” thegasateachappliance.
Leave all gas appliances shut “OFF”
until the water heater installation is
completed,see Figures3and4.
2. Turn “OFF” the water supply to the
water heater at the water shut off
valve or water meter. Some
installationsrequirethat thewater be
turned off to the entire house, see
Figures3 and5.
FIGURE3.
Removing the Old Water Heater
FIGURE4.
FIGURE5.
3. Check again to make sure the gas supply is “OFF” to the water
heater. Then disconnect the gas supply connection from the gas
controlvalve.
4. Attach ahose tothe waterheaterdrain
valve and put the other end in a floor
drain or outdoors. Open the water
heaterdrain valve. Openanearby hot
water faucet which will relieve
pressureinthewater heaterandspeed
draining.The waterpassingoutofthe
drainvalvemay beextremelyhot. To
avoid being scalded, make sure all
connectionsaretightandthatthewater
flowis directedawayfrom anyperson,
seeFigures 3and6. FIGURE6.
5. Disconnecttheventpipefromtheblowerassembly whereitconnects
tothewaterheater. Inmostinstallationsthe ventpipecanbelifted off
after any screw or other attached devices are removed. Make sure
existingvent complieswithmaximum andminimumvent lengthson
page18.
6. If youhave copperpiping tothe waterheater,the twocopper water
pipes can be cut with a hacksaw approximately four inches away
fromwhere theyconnect tothe waterheater,see Figure7.This will
avoidcutting offpipestoo short.Additional cutscanbe madelaterif
necessary.Disconnect thetemperature-pressure reliefvalve drain
line.Whenthewaterheateris drained,disconnectthehosefromthe
drainvalve.Closethedrainvalve.Thewaterheaterisnowcompletely
disconnectedand readyto beremoved.
FIGURE7.
If you have galvanized pipes to the water heater, loosen the two
galvanizedpipes withapipewrenchattheunion ineach line. Also
disconnectthepiping remainingto the waterheater,seeFigure 8.
These pieces should be saved since they may be needed when
reconnectingthenew waterheater. Disconnectthe temperature-
pressurereliefvalve drainline. When the waterheater isdrained,
disconnect the hose from the drain valve. Close the drain valve.
Thewaterheater isnow completelydisconnectedand readyto be
removed.Mineralbuilduporsedimentmay haveaccumulatedinthe
oldwater heater. This causesthe waterheater tobe muchheavier
thannormal andthis residue,if spilledout, couldcause staining.
FIGURE8.
INSTALLATION INSTRUCTIONS