Series Twelve
POWER VENT
GAS WATER HEATER
USER’S GUIDE
FOR POTABLE WATER HEATING ONLY
NOT SUITABLE FOR SPACE HEATING
NOT FOR USE IN
MANUFACTURED (MOBILE) HOMES
Model Numbers
HRN11240P
HRN31240P
HRP11240P
HRP31240P
HRN11250P
HRN31250P
HRP11250P
HRP31250P
HRN11275P
HRN31275P
HRP11275P
HRP31275P
For Your Safety
AN ODORANT IS ADDED TO THE GAS USED
BY THIS WATER HEATER.
PRINTED IN THE U.S.A. 0505
www.maytagwaterheaters.com
1
PART NO. 66001897
184683-001
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.
This is the safety alert symbol. It is used to alert you
to potential personal injury hazards. Obey all safety
messages that follow this symbol to avoid possible
injury or death.
DANGER
DANGER indicates an imminently
hazardous situation which, if not avoided,
could result in death or injury.
WARNING
WARNING indicates a potentially hazardous
situation which, if not avoided, could result
in death or injury.
CAUTION
CAUTION indicates a potentially hazardous
situation which, if not avoided, may result
in minor or moderate injury.
CAUTION
CAUTION used without the safety alert
symbol indicates a potentially hazardous
situation which, if not avoided, could result
in property damage.
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.
IMPORTANT DEFINITIONS
• Maytag Customer Service Center: The Maytag Customer Service Center has the ability equivalent to a licensed tradesman in
the fields of plumbing, air supply, venting and gas supply, including a thorough understanding of the requirements of the
National Fuel Gas Code as it relates to the installation of gas fired water heaters. The Service Center also has a thorough
understanding of this instruction manual, and is able to perform repairs strictly in accordance with the service guidelines
provided by the 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
offer service and inspection of appliances within the building.
2
SAFETY PRECAUTIONS
3
TABLE OF CONTENTS
SAFE INSTALLATION, USE AND SERVICE ....................................................................................................................................... 2
SAFETY PRECAUTIONS ................................................................................................................................................................... 3
TABLE OF CONTENTS ...................................................................................................................................................................... 4
CUSTOMER RESPONSIBILITIES ..................................................................................................................................................... 5
PRODUCT SPECIFICATIONS ........................................................................................................................................................... 5
ACCESSORIES AND TOOLS NEEDED ............................................................................................................................................ 6
Accessories ................................................................................................................................................................................ 6
Tools ............................................................................................................................................................................................ 6
Additional Tools Needed When Sweat Soldering ...................................................................................................................... 6
INSTRUCTIONS FOR INSTALLATION .............................................................................................................................................. 7
Removing the Old Water Heater ................................................................................................................................................. 7
TYPICAL INSTALLATION ................................................................................................................................................................ 8,9
Get to Know Your Water Heater .................................................................................................................................................. 8
LOCATING THE NEW HEATER ....................................................................................................................................................... 10
Facts to Consider About the Location .................................................................................................................................. 10,11
Combustion Air and Ventilation ........................................................................................................................................... 11-13
Insulation Jackets ..................................................................................................................................................................... 13
Combustion Air and Ventilation Appliances
in Unconfined Spaces ............................................................................................................................................................... 13
Combustion Air and Ventilation Appliances
in Confined Spaces ............................................................................................................................................................. 13,14
Water Piping ......................................................................................................................................................................... 14,15
T & P Valve and Pipe Insulation ........................................................................................................................................ 15,16
Temperature Pressure Relief Valve ..................................................................................................................................... 16,17
Filling the Water Heater ............................................................................................................................................................ 17
Wiring ................................................................................................................................................................................... 17,18
Wiring Diagram ......................................................................................................................................................................... 18
Venting ..................................................................................................................................................................................19-25
Gas Piping ................................................................................................................................................................................ 26
Sediment Trap .......................................................................................................................................................................... 27
OPERATING INSTRUCTIONS ....................................................................................................................................................28-31
Operating .................................................................................................................................................................................. 29
Temperature Regulation ...................................................................................................................................................... 29-31
Lighting & Operating Label ....................................................................................................................................................... 30
SERVICE AND MAINTENANCE ..................................................................................................................................................32-34
Tank (Sediment) Cleaning ........................................................................................................................................................ 32
Venting System Inspection ....................................................................................................................................................... 32
Burner Inspection ..................................................................................................................................................................... 32
Burner Cleaning ........................................................................................................................................................................ 32
L.P. Gas Control Valve & Burner Assembly Replacement Information .................................................................................... 33
Housekeeping .......................................................................................................................................................................... 33
Anode Rod Inspection .............................................................................................................................................................. 33
Draining ............................................................................................................................................................................... 33,34
Temperature-Pressure Relief Valve Operation ........................................................................................................................ 34
Drain Valve Washer Replacement ........................................................................................................................................... 34
Service ....................................................................................................................................................................................... 34
TROUBLESHOOTING ................................................................................................................................................................35-40
Start Up Conditions ................................................................................................................................................................... 35
Condensation ................................................................................................................................................................. 35
Smoke / Odor .................................................................................................................................................................. 35
Thermal Expansion ......................................................................................................................................................... 35
Strange Sounds .............................................................................................................................................................. 35
Operational Conditions ....................................................................................................................................................... 35,36
Smelly Water .............................................................................................................................................................. 35,36
“AIR” In Hot Water Faucets ............................................................................................................................................. 36
High Temperature Shut Off System ................................................................................................................................ 36
Venting Manual Reset Switch ......................................................................................................................................... 36
Not Enough or No Hot Water .......................................................................................................................................... 36
Water is To Hot ................................................................................................................................................................ 36
Leakage Checkpoints ............................................................................................................................................................... 37
Thermostat and Gas Supply Check ......................................................................................................................................... 38
System Check ........................................................................................................................................................................... 39
Troubleshooting Guidelines ..................................................................................................................................................... 40
REPAIR PARTS LIST ..................................................................................................................................................................41-44
NOTES ........................................................................................................................................................................................45-47
WARRANTY ..................................................................................................................................................................................... 48
4
CUSTOMER RESPONSIBILITIES
local codes, installations shall comply with the following:
In the United States: The National Fuel Gas Code ANSI
Z223.1/NFPA 54. This publication is available from the
Canadian Standards Association, 8501 East Pleasant Valley
Rd., Cleveland Ohio 44131, or The National Fire Protection
Association, 1 Batterymarch Park, Quincy, MA 02269.
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.
Abbreviations Found In This Instruction Manual:
•
•
•
•
•
• If after reading this manual you have any questions or do not
understand any portion of the instructions, call Maytag
Customer Service at 1-800-788-8899 for an authorized
servicer.
CSA - Canadian Standards Association
ANSI - American National Standards Institute
NFPA - National Fire Protection Association
ASME - American Society of Mechanical Engineers
GAMA - Gas Appliance Manufacturers Association
• Carefully plan the place where you are going to put the water
heater. Correct combustion, vent action, and vent pipe
installation are very important in preventing death from
possible carbon monoxide poisoning and fires, see
figure 1 and 2.
This gas-fired water heater is design certified by CSA
INTERNATIONAL under American National Standard/CSA
Standard for Gas Water Heaters ANSI Z21.10.1 • CSA 4.1 (current
edition). The installation must conform with this manual, local
codes and with the current edition of the National Fuel Gas
Code, ANSIZ223.1 NFPA 54.
Examine the location to ensure the water heater complies
with the Facts to Consider About the Location section in this
manual.
• Read the “Safety Precautions” section, page 3 of this manual
first and then the entire manual carefully. If you don’t follow
the safety rules, the water heater will not operate properly. It
could cause DEATH, SERIOUS BODILY INJURY AND/OR
PROPERTY DAMAGE.
• For California installation this water heater must be braced,
anchored, or strapped to avoid falling or moving during an
earthquake. See instructions for correct installation
procedures. Instructions may be obtained from your local
dealer, wholesaler, public utilities or California Office of the
State Architect, 400 P Street, Sacramento, CA 95814.
This manual contains instructions for the installation,
operation, and maintenance of the gas-fired water heater. It
also contains warnings through out the manual that you must
read and be aware of. All warnings and all instructions 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 OPERATE THE WATER HEATER.
• Massachusetts Code requires this water heater to be
installed in accordance with Massachusetts 248-CMR 2.00:
State Plumbing Code and 248-CMR 5.00. In the
Commonwealth of Massachusetts, this product must be
installed by a licensed plumber or gasfitter.
• The installation must conform with these instructions and
the local code authority having jurisdiction. In the absence of
• Complies with SCAQMD rule #1121 and districts having
equivalent NOx requirements.
PRODUCT SPECIFICATIONS
MODEL NUMBER
HRN11240P
*HRN31240P
HRP11240P
*HRP31240P
HRN11250P
HRN31250P
HRP11250P
HRP31250P
HRN11275P
*HRN31275P
HRP11275P
*HRP31275P
TANK
CAPACITY
IN GALS
(LITERS)
40 (151)
40 (151)
40 (151)
40 (151)
50 (189)
50 (189)
50 (189)
50 (189)
75 (284)
75 (284)
75 (284)
75 (284)
TYPE
OF
GAS
NATURAL
NATURAL
PROPANE
PROPANE
NATURAL
NATURAL
PROPANE
PROPANE
NATURAL
NATURAL
PROPANE
PROPANE
RECOVERY
RATE GALS.
PER HOUR
@ 90°F RISE
46.0
46.0
46.0
46.0
46.0
46.0
46.0
46.0
77.0
77.0
72.0
72.0
BTU
RATE
40,000
40,000
40,000
40,000
40,000
40,000
40,000
40,000
75,000
75,000
70,000
70,000
* High altitude models have a B.T.U./Recovery Rate 10% less than shown.
** Limited usage of 2” vent pipe - see pages 19 through 26.
*** Limited usage of 4” vent pipe - see pages 19 through 26.
5
VENT PIPE
INCHES
(mm)
3" (76)**
3" (76)**
3" (76)**
3" (76)**
3” (76) **
3” (76) **
3” (76)**
3” (76)**
3" (76)***
3" (76)***
3" (76)***
3" (76)***
DIAMETER
INCHES
(mm)
20" (508)
20" (508)
20" (508)
20" (508)
22” (559)
22” (559)
22” (559)
22” (559)
26 1/2" (673)
26 1/2" (673)
26 1/2" (673)
26 1/2" (673)
DIMENSIONS
IN INCHES (mm)
HEIGHT TOP OF
DRAFT HOOD
71 1/2" (1,816)
71 1/2" (1,816)
71 1/2" (1,816)
71 1/2" (1,816)
71 1/2" (1,816)
71 1/2" (1,816)
71 1/2" (1,816)
71 1/2" (1,816)
71 1/2" (1,816)
71 1/2" (1,816)
71 1/2" (1,816)
71 1/2" (1,816)
ACCESSORIES AND TOOLS NEEDED
Accessories
To simplify the installation Maytag has available the installation parts shown below. You may or may not need all of these accessories
depending on your type of installation. Call Maytag Customer Service at 1-800-788-8899 for an authorized installer.
DRAIN PANS AVAILABLE IN 22” (559 mm) DIAMETER (PART NO.
66001011) FOR WATER HEATERS HAVING A DIAMETER 20” (508
mm) OR LESS, 24” (610mm) DIAMETER (PART NO. 66001105) FOR
WATER HEATERS HAVING A DIAMETER 22” (559 mm) OR LESS AND
28” (711 mm) DIAMETER (PART NO. 66001012) FOR WATER HEATERS
HAVING A DIAMETER 26” (660 mm) OR LESS.
EXPANSION TANKS FOR THERMAL EXPANSION CONDITIONS
AVAILABLE IN 2 GALLONS (7.6 LITERS), Part No. 66001013 AND 5
GALLONS (18.9 LITERS), Part No. 66001014 CAPACITY.
Tools
Additional Tools Needed
When Sweat Soldering
You may or may not need all these tools, depending on your
type of installation. These tools can be purchased at your local
hardware store.
•
•
•
•
•
•
•
•
•
•
•
•
•
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
Tubing Cutters or Hacksaw
Propane Torch
Soft Solder
Solder Flux
Emery Cloth
Wire Brushes
DRILL
SLOT-HEAD SCREWDRIVER
TUBING CUTTER
PROPANE
TORCH
TIN SNIPS
PHILLIPS SCREWDRIVER
ROLL OF TEFLON
TAPE (USE ONLY ON
WATER HEATER
CONNECTIONS)
PIPE DOPE
(SQUEEZE TUBE)
USE FOR WATER AND GAS
CONNECTIONS
HACKSAW
ROLL OF
EMERY CLOTH
3/4” (19 mm) WIRE BRUSH
GARDEN HOSE
6 FOOT TAPE
1/2” (13 mm) WIRE BRUSH
PIPE WRENCH
6
ROLL OF LEAD-FREE
SOFT SOLDER
SOLDER
FLUX
INSTRUCTIONS FOR INSTALLATION
Removing the Old Water Heater
4. Attach a hose to the water heater
drain valve and put the other end
in a floor drain or outdoors. Open
the water heater drain valve. Open
a nearby hot water faucet which will
relieve pressure in the water
heater and speed draining. The
water passing out of the drain valve
may be extremely hot. To avoid
being scalded, make sure all
connections are tight and that the
water flow is directed away from
any person, see Figures 1 and 4.
FIGURE 4.
5. Disconnect the vent pipe from the draft hood where they
connect to the water heater. In most installations the vent
pipe can be lifted off after any screw or other attached devices
are removed. Dispose of the draft hood. The new water
heater has the draft hood which must be used for proper
operation.
6. If you have copper piping to the water heater, the two copper
water pipes can be cut with a hacksaw approximately four
inches away from where they connect to the water heater.
This will avoid cutting off pipes too short. Additional cuts can
be made later if necessary. Disconnect the temperaturepressure relief valve drain line. When the water heater is
drained, disconnect the hose from the drain valve. Close the
drain valve. The water heater is now completely disconnected
and ready to be removed, see Figure 5.
FIGURE 1.
1. Turn “OFF” the gas supply to the
water heater.
If the main gas line Shut-off valve
serving all gas appliances is
used, also shut “OFF” the gas at
each appliance. Leave all gas
appliances shut “OFF” until the
water heater installation is
completed, see Figures 1 and 2.
2. Turn “OFF” the water supply to the
water heater at the water shut off
valve or water meter. Some
installations require that the water
be turned off to the entire house,
see Figures 1 and 3.
FIGURE 5.
FIGURE 2.
If you have galvanized pipe to the water heater, loosen the
two galvanized pipes with a pipe wrench at the union in each
line. Also disconnect the piping remaining to the water heater.
These pieces should be saved since they may be needed
when reconnecting the new water heater. Disconnect the
temperature-pressure relief valve drain line. When the water
heater is drained, disconnect the hose from the drain valve.
Close the drain valve. The water heater is now completely
disconnected and ready to be removed. Mineral buildup or
sediment may have accumulated in the old water heater.
This causes the water heater to be much heavier than normal
and this residue, if spilled out, could cause staining, see
Figure 6.
FIGURE 3.
3. Check again to make sure the gas supply is “OFF” to the
water heater. Then disconnect the gas supply connection
from the gas control valve.
FIGURE 6.
7
TYPICAL INSTALLATION
GET TO KNOW YOUR WATER HEATER - GAS MODELS
A
B
C
D
E
F
G
H
Vent Pipe
Blower
Anode
Hot Water Outlet
Standard Pipe Fittings
Gas Supply
Manual Gas Shut-off Valve
Ground Joint Union
I
J
K
L
M
N
O
P
Drip Leg (Sediment Trap)
Inner Door
Outer door
Union
Inlet Water Shut-off Valve
Cold Water Inlet
Inlet Dip Tube
Temperature-Pressure Relief Valve
Q
R
S
T
U
V
W
Rating Plate
Flue Baffle
Thermostat
Drain Valve
Pilot and Main Burner
Flue
Drain Pan
* INSTALL IN ACCORDANCE
WITH LOCAL CODES.
* DRIP LEG AS REQUIRED
BY LOCAL CODES.
(S) THERMOSTAT
TO VENT TERMINATION
ON ROOF
(U) PILOT & MAIN BURNER
* ALL PIPING MATERIALS TO BE
SUPPLIED BY CUSTOMERS.
** CLOSED WATER SYSTEMS ARE THOSE WITH BACK FLOW
PREVENTION DEVICES INSTALLED IN THE INLET
SERVICE LINE.
FIGURE 7.
8
TYPICAL INSTALLATION
MIXING VALVE USAGE
FIGURE 8.
This appliance has been design certified as complying with
American National Standard/CSA Standard for water heaters
and is considered suitable for:
more likely to be permanently injured by hot water than others.
These include the elderly, children, the infirm, or physically/
mentally handicapped. 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 precautions. In addition to using the
lowest possible temperature setting that satisfies your hot water
needs, a means such as a *Mixing Valve, shall be used at the
hot water taps used by these people or at the water heater.
Mixing valves are available at plumbing supply or hardware
stores. See Figure 8. Valves for reducing point of use temperature
by mixing cold and hot water are also available. 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
“Temperature Regulation” section in this manual, see Figure
52 on page 31.
Water (Potable) Heating: All models are considered suitable
for water (potable) heating.
This water heater shall not be connected to any heating
system(s) or component(s) previously used with a non-potable
water heating appliance.
HOTTER WATER CAN SCALD:
Toxic chemicals such as used for treatment of boilers or nonpotable water heating appliances shall never be introduced
into a potable water space heating system.
Water heaters are intended to produce hot water. Water heated
to a temperature which will satisfy space heating, clothes
washing, dish washing, and other sanitizing needs can scald
and permanently injure you upon contact. Some people are
NOTE: To protect against untimely corrosion of hot and cold
water fittings, it is strongly recommended that di-electric
unions or couplings be installed on the water heater when
connected to copper pipe.
9
LOCATING THE NEW WATER HEATER
Facts to Consider About the Location
Installation of the water heater must be accomplished in such a
manner that if the tank or any connections should leak, the flow
will not cause damage to the structure. For this reason, it is not
advisable to install the water heater in an attic or upper floor.
When such locations cannot be avoided, a suitable drain pan
should be installed under the water heater. Drain pans are
available at your local hardware store. Such a drain pan must
have a minimum length and width of at least 2 inches (51 mm)
greater that the water heater dimensions and must be piped to
an adequate drain. The pan must not restrict combustion air flow.
Carefully choose an indoor location for the new water heater,
because the placement is a very important consideration for
the safety of the occupants in the building and for the most
economical use of the appliance. This water heater is not for
use in manufactured (mobile) homes or outdoor installation.
Whether replacing an old water heater or putting the water heater
in a new location, the following critical points must be observed:
Water heater life depends upon water quality, water pressure
and the environment in which the water heater is installed. Water
heaters are sometimes installed in locations where leakage
may result in property damage, even with the use of a drain pan
piped to a drain. However, unanticipated damage can be reduced
or prevented by a leak detector or water shut-off device used in
conjunction with a piped drain pan. These devices are available
from some plumbing supply wholesalers and retailers, and
detect and react to leakage in various ways:
• The location selected should be indoors as close as practical
to the vent termination point, and as centralized with the water
piping system as possible. The water heater, as all water
heaters, will eventually leak. Do not install without adequate
drainage provisions where water flow will cause damage.
• 40,000 BTU/HR INPUT MODELS - If vented through an outside
wall or through the roof, the 3” vent piping cannot exceed a total
of 115 feet (50 feet if optional 2” vent piping is used), including
vertical and horizontal runs with one 90o elbow. If more elbows
are required, the venting distance must be reduced 5 feet for
every 90 elbow, see page 22 for vent chart.
• Sensors mounted in the drain pan that trigger an alarm or
turn off the incoming water to the water heater when leakage
is detected.
• 70,000 and 75,000 BTU/HR INPUT MODELS -If vented through
an outside wall or through the roof, the 3” vent piping cannot
exceed a total of 70 feet (110 feet if optional 4” vent piping is
used), including vertical and horizontal runs with one 90o elbow.
If more elbows are required, the venting distance must be
reduced 5 feet fro every 90 elbow, see page 22 for vent chart.
• Sensors mounted in the drain pan that turn off the water supply
to the entire home when water is detected in the drain pan.
• Water supply shut-off devices that activate based on the
water pressure differential between the cold water and hot
water pipes connected to the water heater.
• Vent piping cannot slope downward and horizontal runs
require 1/8” per five foot rise. All horizontal runs require
adequate support at 3 1/2 foot intervals and vertical runs
supported at 5 foot intervals.
• Devices that will turn off the gas supply to a gas water heater
while at the same time shutting off its water supply.
• The water heater requires its own (separate) venting system.
It cannot be connected to an existing vent pipe or chimney. It
must terminate to the outdoors. Whenever possible terminate
the vent on the leeward side of the building if vented through
an outside wall. NOTE: Condensation may be created, at times,
as the combustion gases exit the vent cap and discoloration
of surfaces in proximity to the vent cap may occur.
The power vent water heater requires its own (separate) 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 venting system can result in asphyxiation, a fire or
explosion and can cause DEATH, SERIOUS BODILY INJURY,
OR PROPERTY DAMAGE.
• The water heater comes equipped with a 7 foot 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 receptacle
available. This unit must have a grounded outlet to operate.
Do not use an extension cord. If there is not a suitable
receptacle and/or local codes prohibit use of a power cord,
field wiring must be provided.
10
INSTALLATIONS IN AREAS WHERE FLAMMABLE LIQUIDS
(VAPORS) ARE LIKELY TO BE PRESENT OR STORED
(GARAGES, STORAGE AND UTILITY AREAS, ETC.):
Flammable liquids (such as gasoline, solvents, propane [LP
or butane, etc.] and other substances such as adhesives, etc.)
emit flammable vapors which can be ignited by a gas water
heater’s pilot light or main burner. The resulting flashback and
fire can cause death or serious burns to anyone in the area, as
well as property damage. If installation in such areas is your
only option, then installation must be accomplished in a way
that the pilot flame and main burner flame are elevated from
the floor at least 18 inches. While this may reduce the chances
of flammable vapors, from a floor spill being ignited, gasoline
and other flammable substances should never be stored or
used in the same room or area containing a gas water heater
or other open flame or spark producing appliance. NOTE:
Flammable vapors may be drawn by air currents from other
areas of the structure to the appliance.
FIGURE 9.
• Do not obstruct water heater air
intake with insulating blanket.
• Gas and carbon monoxide
detectors are available.
• Install water heater in accordance
with the instruction manual.
Also, the water heater must be located and/or protected so it is
not subject to physical damage by a moving vehicle.
Propellants of aerosol sprays and volatile compounds,
(cleaners, chlorine based chemicals, refrigerants, etc.) in
addition to being highly flammable in many cases, will also
change to corrosive hydrochloric acid when exposed to the
combustion products of the water heater. The results can be
hazardous, and also cause product failure.
A gas water heater cannot operate properly without the correct
amount of air for combustion. Do not install in a confined area
such as a closet, unless you provide air as shown in the
Locating The New Water Heater section. Never obstruct the
flow of ventilation air. If you have any doubts or questions at all,
call your gas supplier. Failure to provide the proper amount of
combustion air can result in a fire or explosion and cause
death, serious bodily injury, or property damage.
This water heater must not be installed directly on carpeting.
Carpeting must be protected by metal or wood panel beneath
the appliance extending beyond the full width and depth of the
appliance by at least 3 inches (76.2 mm) in any direction, or if
the appliance is installed in an alcove or closet, the entire floor
must be covered by the panel. Failure to heed this warning
may result in a fire hazard.
FIGURE 10.
If this water heater will be used in beauty shops, barber shops,
cleaning establishments, or self-service laundries with dry
cleaning equipment, it is imperative that the water heater or
water heaters be installed so that combustion and ventilation
air be taken from outside these areas.
Combustion Air and Ventilation
When determining the installation location for a power vent
water heater, snow accumulation and drifting should be
considered in areas where applicable.
Minimum clearances between the water heater and
combustible construction are 0 inch at the sides and rear,
6 inches (152 mm) at the front, and 0 inches from the vent pipe.
Clearance from the top of the jacket is 14 inches (356 mm) on
most models. Note that a lesser dimension may be allowed
on some models, refer to the label attached adjacent to the
gas control valve on the water heater, see Figure 9.
VENTING CLEARANCES
• 0” clearance for 3” (and optional 2” and 4”) PVC, ABS or
CPVC Schedule 40 vent piping from combustible surfaces.
11
• 24” minimum from any appliance inlet and/or outlet vents
when directly below or 45 o to either side of center line,
see Figure 13.
• 12” minimum from the ground, 9” ceiling overhangs, see
Figure 11.
• 18” minimum in all directions from any obstruction that may
interfere, see Figure 14.
FIGURE 14.
FIGURE 11.
• The location selection must provide clearances for servicing
and proper operation of the water heater, see Figure 15.
• The Power Vent outlet terminal shall terminate at least 36”
above any forced air inlet into the building located within
10 feet, see Figure 12.
• The Power Vent outlet terminal shall terminate at least
4 feet below, 4 feet horizontally from or 1 foot above any door,
window or gravity air inlet into the building, see Figure 12.
FIGURE 15.
Vent termination must not be within 4 feet of any items such
as gas meters, gas valves or other gas regulating
equipment.
• The venting system must be installed in a manner which
allows inspection of the installation of the venting pipes and
joints as well as periodic inspection after installation as
required by ANSI Standards.
Vent termination must not be within 4 feet of any items such as
gas meters, gas valves or other gas regulating equipment.
FIGURE 12.
• 18” minimum from other natural draft (gravity) direct vent,
power vent or power direct vent appliance inlet and/or outlet
vent(s) when directly above or 135o to either side of the
center line, see Figure 13.
Failure to have required clearances between water heater and
combustible material will result in a fire hazard.
VENTING THROUGH ROOF - CLEARANCES
• 0” clearances 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”
above the roof surface, see Figure 16.
• The location selection must provide clearances for servicing
and proper operation of the water heater, see Figure 15.
• The venting system must be installed in a manner which
allows inspection of the installation of the venting pipes and
joints as well as periodic inspection after the installation as
required by ANSI Standards.
FIGURE 13.
12
• Do inspect the insulation blanket frequently to make certain
it does not sag, thereby obstructing combustion air flow.
Combustion Air and Ventilation for
Appliances Located in Unconfined Spaces
UNCONFINED SPACE is space whose volume is not less than
50 cubic feet per 1,000 Btu per hour (4.8 m3 per kW) of the
aggregate input rating of all appliances installed in that space.
Rooms communicating directly with the space in which the
appliances are installed, through openings not furnished with
doors, are considered a part of the unconfined space.
In unconfined spaces in buildings, infiltration may be adequate
to provide air for combustion, ventilation and dilution of flue
gases. However, in buildings of tight construction (for example,
weather stripping, heavily insulated, caulked, vapor barrier, etc.),
additional air may need to be provided using the methods
described in Combustion Air and Ventilation for Appliances
Located in Confined Spaces.
FIGURE 16.
Insulation Blankets
Combustion Air and Ventilation for
Appliances Located in Confined Spaces
• Install water heater in accordance
with the instruction manual and
NFPA 54.
• To avoid injury, combustion and
ventilation air must be taken from
outdoors.
• Do not place chemical vapor
emitting products near water
heater.
CONFINED SPACE is a space whose volume is less than
50 cubic feet per 1,000 Btu per hour (4.8 m3 per kW) of the
aggregate input rating of all appliances installed in that space.
A. ALL AIR FROM INSIDE BUILDINGS:
(See Figure 9 and 10 on page 11 and Figure 17 below)
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 determination. Each
opening shall have a minimum free area of one square inch
per 1,000 Btu per hour (22 cm2/kW) of the total input rating of all
gas utilization equipment in the confined space, but not less
than 100 square inches (645 cm 2). One opening shall
commence within 12 inches (30 cm) of the top and one
commencing within 12 inches (30 cm) of the bottom of the
enclosures.
Insulation blankets available to the general public for external
use on gas water heaters are not necessary with Maytag
products. The purpose of an insulation blanket is to reduce the
standby heat loss encountered with storage tank heaters. Your
Maytag water heater meets or exceeds the National Appliance
Energy Conservation Act standards with respect to insulation
and standby loss requirements, making an insulation blanket
unnecessary.
Should you choose to apply an insulation blanket to this heater,
you should follow these instructions (See Figure 7 for
identification of components mentioned below). Failure to follow
these instructions can restrict the air flow required for proper
combustion, potentially resulting in fire, asphyxiation, serious
personal injury or death.
• Do not apply insulation to the top of the water heater, as this
will interfere with safe operation of the draft hood.
• Do not cover the outer door, thermostat or temperature &
pressure relief valve.
• Do not allow insulation to come within 2” (50.8 mm) of the
floor to prevent blockage of combustion air flow to the burner.
• Do not cover the instruction manual. Keep it on the side of
the water heater or nearby for future reference.
• Do obtain new warning and instruction labels from Maytag
for placement on the blanket directly over the existing labels.
FIGURE 17.
13
they connect. The minimum short side dimension of
rectangular air ducts shall not be less than 3 inches
(76.2 mm), see Figure 20.
B. ALL AIR FROM OUTDOORS: (See Figures 18, 19 and 20)
The confined space shall be provided with two permanent
openings, one commencing within 12 inches (30 cm) of the
top and one commencing within 12 inches (30 cm) from the
bottom of the enclosure. The openings shall communicate
directly, or by ducts, with the outdoors or spaces (crawl or attic)
that freely communicate with the outdoors.
FIGURE 20.
• Louvers and Grilles: In calculating free area, consideration
shall be given to the blocking effect of louvers, grilles or
screens protecting openings. Screens used shall not be
smaller than 1/4 inch (6.4 mm) mesh. If the free area through
a design of louver or grille is known, it should be used in
calculating the size opening required to provide the free
area specified. If the design and free area is not known, it
may be assumed that wood louvers will be 20-25 percent
free area and metal louvers and grilles will 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.
FIGURE 18.
• When directly communicating with the outdoors, each opening
shall have a minimum free area of 1 square inch per 4,000 Btu
per hour (5.5 cm2/kW) of total input rating of all equipment in the
enclosure, see Figure 18.
• Special Conditions Created by Mechanical Exhausting or
Fireplaces: operation of exhaust fans, ventilation systems,
clothes dryers or fireplaces may create conditions requiring
special attention to avoid unsatisfactory operation of installed
gas utilization equipment.
• When communicating with the outdoors through vertical
ducts, each opening shall have a minimum free area of
1 square inch per 4,000 BTU per hour (5.5 cm2/kW) of total
input rating of all equipment in the enclosure, see
Figure 19.
Water Piping
HOTTER WATER CAN SCALD:
Water heaters are intended to produce hot water. Water heated
to a temperature which will satisfy space heating, clothes
washing, dish washing, cleaning and other sanitizing needs
can scald and permanently injure you upon contact. Some
people are more likely to be permanently injured by hot water
than others. These include the elderly, children, the infirm, or
physically/mentally handicapped. 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 precautions. In
FIGURE 19.
• When communicating with the outdoors through horizontal
ducts, each opening shall have a minimum free area of 1
square inch per 2,000 BTU per hour (11 cm2/kW) of total
input rating of all equipment in the enclosure, see
Figure 20.
• When ducts are used, they shall be of the same crosssectional area as the free area of the openings to which
14
addition to using the lowest possible temperature setting that
satisfies your hot water needs, a means such as a *mixing
valve, shall be used at the hot water taps used by these people
or at the water heater. Mixing valves are available at plumbing
supply or hardware stores, see Figure 8 on page 9 and Figure
21 below. Valves for reducing point of use temperature by mixing
cold and hot water are also available. Consult Maytag
Customer Service (1-800-788-8899). Follow manufacturer’s
instructions for installation of the valves. Before changing the
factory setting on the thermostat, read the Temperature
Regulation section in this manual.
Figure 22 shows the typical attachment of the water piping to
the water heater. The water heater is equipped with 3/4” NPT
water connections for 40,000 Btuh models and 1 inch water
connections for 70,000 and 75,000 Btuh models.
NOTE: If using copper tubing, solder tubing to an adapter
before attaching the adapter 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.
• 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.
See Figure 21 for mixing valve usage.
• Look at the top of the water heater. The cold water inlet is
marked “COLD”. Connect the cold water pipe to the cold
water inlet of the water heater.
NOTE: This water heater is super insulated to minimize
heat loss from the tank. Further reduction in heat loss
can be accomplished by insulating the hot water lines
from the water heater.
FIGURE 21.
This water heater shall not be connected to any heating systems
or component(s) used with a non-potable water heating
appliance.
If a water heater installed in a closed water supply system;
such as one having a back-flow preventer, check valve, water
meter with a check valve, etc. . . in the cold water supply; means
shall be provided to control thermal expansion. Contact the
local utility or call Maytag Customer Service Center at
1-800-788-8899 for an authorized installer on how to control
this situation.
FIGURE 22.
T & P Valve and Pipe Insulation
Remove insulation for T & P valve and pipe connections from
carton.
Fit pipe insulation over the incoming cold water line and the hot
water line. Make sure that the insulation is against the top
cover of the heater.
NOTE: To protect against untimely corrosion of hot and cold
water fittings, it is strongly recommended that di-electric
unions or couplings be installed on this water heater when
connected to copper pipe.
Fit T & P valve insulation over valve. Make sure that the insulation
does not interfere with the lever of the T & P valve.
15
Secure all insulation using tape.
must not be blocked or reduced in size under any
circumstances. Excessive length, over 30 feet (9.14 m), or use
of more than four elbows can cause restriction and reduce the
discharge capacity of the valve, see Figure 24.
No valve or other obstruction is to be placed between the relief
valve and the tank. Do not connect tubing directly to discharge
drain unless a 6 inch air gap is provided. To prevent bodily
injury, hazard to life, or property damage, the relief valve must
be allowed to discharge water in quantities should
circumstances demand. If the discharge pipe is not connected
to a drain or other suitable means, the water flow may cause
property damage.
FIGURE 23.
Temperature-Pressure Relief Valve
• Temperature-pressure relief valve
must comply with ANSI Z21.22
and ASME code.
• Properly sized temperature-relief
valve must be installed in opening
provided.
• Can result in overheating and
excessive tank pressure.
• Can cause serious injury or death.
This heater is provided with a properly certified combination
temperature - pressure relief valve by the manufacturer.
FIGURE 24.
The valve is certified by a nationally recognized testing
laboratory that maintains periodic inspection of production of
listed equipment of materials as meeting the requirements for
Relief Valves and Automatic Gas Shut-off Devices for Hot Water
Supply Systems, ANSI Z21.22 and the code requirements of
ASME.
If replaced, the valve must meet the requirements of local
codes, but not less than a combination temperature and
pressure relief valve certified as indicated in the above
paragraph.
The Discharge Pipe:
The valve must be marked with a maximum set pressure not to
exceed the marked hydrostatic working pressure of the water
heater (150 psi = 1,035 kPa) and a discharge capacity not less
than the water heater input rate as shown on the model rating
plate.
• Shall not be smaller in size than the outlet pipe size of the
valve, or have any reducing couplings or other restrictions.
• Shall not be plugged or blocked.
• Shall be of material listed for hot water distribution.
For safe operation of the water heater, the relief valve must not
be removed from its designated opening nor plugged.
• Shall be installed so as to allow complete drainage of both
the temperature-pressure relief valve, and the discharge
pipe.
The temperature-pressure relief valve must be installed directly
into the fitting of the water heater designed for the relief valve.
Position the valve downward and provide tubing so that any
discharge will exit only within 6 inches (153 mm) above, or at
any distance below the structural floor. Be certain that no contact
is made with any live electrical part. The discharge opening
• Shall terminate at an adequate drain.
• Shall not have any valve between the relief valve and tank.
16
Wiring
USE WITH POWER CORD
The water heater comes equipped with a 7 foot 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
receptacle available. This unit must have a grounded outlet to
operate.
The temperature-pressure relief valve must be manually
operated at least once a year. Caution should be taken to
ensure that (1) no one is in front of or around the outlet of the
temperature-pressure relief valve discharge line, and (2) the
water manually discharged will not cause any bodily injury or
property damage because the water may be extremely hot.
If after manually operating the valve, it fails to completely reset
and continues to release water, immediately close the cold
water inlet to the water heater, follow the draining instructions,
and replace the temperature-pressure relief valve with a new
one.
FIGURE 25.
Filling the Water Heater
You must provide all wiring, (1) to a receptacle or, (2) between
the water heater and junction box when power cord is not used.
Do not use an extension cord. If there is not a suitable
receptacle and/or local codes prohibit use of a power cord,
field wiring must be provided.
If you are not familiar with electric codes and practices, or if you
have any doubt in your ability to connect the wiring to this water
heater, obtain the service of a competent electrician or contact
your local electric utility.
Never use this water heater unless it is completely full of water.
To prevent damage to the tank, the tank must be filled with
water. Water must flow from the hot water faucet before turning
“ON” gas to the water heater.
To fill the water heater with water:
• Close the water heater drain valve by turning the handle to
the right (clockwise). The drain valve is on the lower front of
the water heater.
• Open the cold water supply valve to the water heater.
NOTE: The cold water supply valve must be left open when
the water heater is in use.
• 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
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 copper wire. If you wish
to reuse the existing aluminum wire, have the connection at
the water heater made by competent electrician. Contact a local
electrical contractor and/or the local electric utility.
• Check all water piping and connections for leaks. Repair
as needed.
17
USE WITHOUT POWER CORD
If power cord cannot be used, then follow these wiring
instructions.
• Provide a way to easily shut off the electric power when
working on the water heater. This could be with a circuit
breaker or fuse block in the entrance box or a separate
disconnect switch.
• Install and connect a circuit directly from the main fuse or
circuit breaker box. This circuit must be the right size and
have its own fuse or circuit breaker.
A standard 1/2” conduit opening has been made in the water
heater junction box for the conduit connection.
• Use wire nuts and connect the power supply wiring to the
wires inside the water heater’s junction box.
• The water heater must be electrically “grounded” by the
installer. The unit will not operate unless it is properly
grounded. A green ground screw has been provided on the
water heater’s junction box. Connect ground wire to this
location. For complete grounding details and all allowable
exceptions, refer to the current edition of the National
Electrical Code, ANSI/NFPA 70.
FIGURE 26.
Wiring Diagram
NOTE: LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING
CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS
OPERATION. VERIFY PROPER OPERATION AFTER SERVICING.
FIGURE 27.
18
Horizontal runs must be securely supported at 3 1/2” foot
intervals and vertical runs supported at 5 foot intervals.
Venting
To insure proper venting of this gas-fired water heater, the
correct vent pipe diameter must be utilized. Do not install other
gas appliances on the same vent with this water heater as this
will adversely affect the operation on the water heater.
The combustion and ventilation air flow must not be obstructed.
FIGURE 29.
VENTING THROUGH AN OUTSIDE WALL:
75 GALLON 70,000 AND 75,000 BTU/HR MODELS ONLY
(See rating plate for BTU/HR rating)
3” PVC, ABS or CPVC Schedule 40 vent piping:
• A 3” PVC Schedule 40-45o vent cap with wire screen is
supplied with the water heater.
• A 3” PVC, ABS or CPVC Schedule 40-90o street ell; used to
connect the vent pipe to the water heater when the vent pipe
is to be turned horizontally directly off the blower (supplied
locally).
The power vent water heater requires its own (separate) 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 venting system can result in asphyxiation, a
fire or explosion and cause DEATH, SERIOUS BODILY INJURY,
OR PROPERTY DAMAGE.
• 3” PVC, ABS or CPVC Schedule 40 pipe (must be supplied
locally).
The vent pipe from the water heater must slope upward 1/8”
per five feet for any horizontal run.
All vent gases must be completely vented to the outdoors of the
structure (dwelling).
FIGURE 30.
75 GALLON 70,000 AND 75,000 BTU/HR MODELS ONLY
• The water heater requires its own (separate) venting
system.
FIGURE 28.
• 3” PVC, ABS or CPVC Schedule 40 piping and fittings are
acceptable materials for the vent system on all 75 gallon
70,000 and 75,000 BTU/HR models.
Chemical vapor corrosion of the flue and vent system may
occur. If air for combustion contains certain chemical vapors.
Spray can propellants, cleaning solvents, refrigerator and air
conditioner refrigerants, swimming pool chemicals, calcium
and sodium chloride, waxes, bleach and process chemicals
are typical compounds which are potentially corrosive.
• It cannot be connected to existing vent piping or chimney.
• It must terminate horizontally to the outdoors.
19
75 GALLON 70,000 AND 75,000 BTU/HR MODELS ONLY OPTIONAL 4” VENT PIPING
4” PVC, ABS or CPVC Schedule 40 vent piping:
• A wire screen to fit a 4” PCV, ABS or CPVC Schedule 40 - 45o
vent cap is supplied with the water heater.
• A 4” PVC, ABS or CPVC Schedule 40 - 45o vent cap (must be
supplied locally).
FIGURE 32.
• A 3” PVC, ABS or CPVC Schedule 40 pipe, minimum length
of 3” (must be supplied locally), to make vent connection at
the blower outlet.
• The water heater requires its own (separate) venting
system.
• 3” PVC, ABS or CPVC Schedule 40 piping and fittings are
acceptable materials for the vent system on all 40 and 50
gallon 40,000 BTU/HR models.
• A 4” to 3” PVC, ABS or CPVC Schedule 40 reducer (must be
supplied locally).
• A 4” PVC, ABS or CPVC Schedule 40 - 90o street ell; used to
connect the vent pipe to the reducer when the vent pipe is to
be turned horizontally off the blower (supplied locally).
• It cannot be connected to existing vent piping or chimney.
• It must terminate horizontally to the outdoors.
• 4” PVC, ABS or CPVC Schedule 40 pipe (must be supplied
locally).
ALL 40 AND 50 GALLON 40,000 BTU/HR MODELS - OPTIONAL
2” VENT PIPING
2” PVC, ABS or CPVC Schedule 40 vent piping:
• A wire screen to fit a 2” PCV, ABS or CPVC Schedule 40 - 45o
vent cap is supplied with the water heater.
• A 2” PVC, ABS or CPVC Schedule 40 - 45o vent cap (elbow)
(must be supplied locally).
• A 3” PVC, ABS or CPVC Schedule 40 pipe, minimum length
of 3” (must be supplied locally), to make vent connection at
the blower outlet.
FIGURE 31.
• A 3” to 2” PVC, ABS or CPVC Schedule 40 reducer (must be
supplied locally).
• The water heater requires its own (separate) venting
system.
• A 2” PVC, ABS or CPVC Schedule 40 - 90o street ell; used to
connect the vent pipe to the reducer when the vent pipe is to
be turned horizontally off the blower (supplied locally).
• 4” and 3” PVC, ABS or CPVC Schedule 40 piping and fittings
are acceptable materials for the vent system on all 75 gallon
70,000 and 75,000 BTU/HR models.
• 2” PVC, ABS or CPVC Schedule 40 pipe (must be supplied
locally).
• It cannot be connected to existing vent piping or chimney.
• It must terminate horizontally to the outdoors.
ALL 40 AND 50 GALLON 40,000 BTU/HR MODELS ONLY
3” PVC, ABS or CPVC Schedule 40 vent piping:
• A 3” PVC Schedule 40 - 45o vent cap with wire screen is
supplied with the water heater.
• A 3” PVC, ABS or CPVC Schedule 40 - 90o street ell; used to
connect the vent pipe to the water heater when the vent pipe
is to be turned horizontally directly off the blower (supplied
locally).
• 3” PVC, ABS or CPVC Schedule 40 pipe (must be supplied
locally).
FIGURE 33.
20
• The water heater requires its own (separate) venting
system.
• 2” and 3” PVC, ABS or CPVC Schedule 40 piping and fittings
are acceptable materials for the vent system on all 40 and
50 gallon 40,000 BTU/HR models.
• It cannot be connected to existing vent piping or chimney.
• It must terminate horizontally to the outdoors.
NOTE: See pages 24 and 25 for vertical venting through the
roof.
VENTING SYSTEM EXAMPLE INSTALLATIONS
FOR ALL MODELS
The vent piping cannot under any circumstances be run down
hill.
FIGURE 36.
FIGURE 34.
The vent piping may be installed as follows:
• Horizontal runs require a minimum 1/8” rise per five feet
FIGURE 37.
75 GALLON 70,000 AND 75,000 BTU/HR MODELS
See chart on following page for maximum length.
FIGURE 38.
FIGURE 35.
21
40 AND 50 GALLON 40,000 BTU/HR MODELS
See Chart below for maximum length.
FIGURE 39.
• The total vertical and horizontal vent run cannot exceed the
maximum length with the number of 90o elbows as specified
in the following tables. If more are required the venting
distance must be reduced 5 feet for every 90o elbow.
75 GALLON 70,000 AND 75,000 BTU/HR MODELS ONLY
3” DIA. VENT
MAX. LENGTH (FT.)
70
65
60
55
50
45
NUMBER OF
90o ELBOWS*
1
2
3
4
5
6
FIGURE 40.
• Minimum vent length for all 40,000 BTU/HR input models is
4 feet and 16 inches for all other models.
VENTING THROUGH AN OUTSIDE WALL WITH LOW GROUND
CLEARANCE
75 GALLON 70,000 AND 75,000 BTU/HR MODELS ONLY OPTIONAL 4” VENT PIPING
4” DIA. VENT
MAX. LENGTH (FT.)
110
105
100
95
90
85
• When the venting piping cannot pass through an outside
wall at a height greater than or equal to 12” above the ground
(or above snow accumulation level), then the installation
can be modified as shown below.
NUMBER OF
90o ELBOWS*
1
2
3
4
5
6
ALL 40 AND 50 GALLON 40,000 BTH/HR MODELS ONLY
3” DIA. VENT
MAX. LENGTH (FT.)
115
110
105
100
95
90
NUMBER OF
90o ELBOWS*
1
2
3
4
5
6
ALL 40 AND 50 GALLON 40,000 BTH/HR MODELS ONLY OPTIONAL 2” VENT PIPING
2” DIA. VENT
MAX. LENGTH (FT.)
50
45
40
35
30
25
NUMBER OF
90o ELBOWS*
1
2
3
4
5
6
FIGURE 41.
• Refer to the tables on page 23 for maximum vent lengths for
low ground clearance installations. All installations assume
the use of two additional 90 elbows and the standard 45o
vent cap with screen outside of the exterior wall.
* Two 45o elbows are equivalent to one 90o elbow.
One 90 o elbow equals 5 feet of equivalent vent length.
22
75 GALLON 70,000 AND 75,000 BTU/HR MODELS ONLY
3” DIA. VENT
MAX. LENGTH (FT.)
60
55
50
45
40
35
Primer, cleaner and cements are extremely flammable. They
are harmful or fatal if swallowed. The vapors are harmful They
may irritate eyes and skin and can be absorbed through the
skin.
NUMBER OF
90 ELBOWS*(Inside bldg.)
1
2
3
4
5
6
Always store primers, cleaners and cements in cool, dry, well
ventilated places. Do not store them near heat, sparks or flames.
Keep containers closed. Use them in well ventilated areas.
Wear impervious clothing while handling. Do not smoke, eat
or drink while handling. Wash thoroughly after handling and
before eating. Wear eye protection when handling. If swallowed,
drink water, do not induce vomiting, and call a physician or
poison control center immediately. If inhaled, get fresh air and
seek medical attention if ill feeling persists. In case of eye and
skin contact, immediately flush with plenty of water for 15
minutes and seek medical attention if irritation persists. KEEP
OUT AND REACH OF CHILDREN.
75 GALLON 70,000 AND 75,000 BTU/HR MODELS ONLY OPTIONAL 4” VENT PIPING
4” DIA. VENT
MAX. LENGTH (FT.)
100
95
90
85
80
75
NUMBER OF
90o ELBOWS*(Inside bldg.)
1
2
3
4
5
6
All primers, cleaners and cements must meet all local codes
and applicable standards of the American Society for Testing
Materials Standards.
Before using primers, cleaners and cements, stir or shake,
making sure contents of liquid. Do not use if found to be lumpy
or jelly-like.
ALL 40 AND 50 GALLON 40,000 BTU/HR MODELS
1. Cut pipe ends squarely removing all burrs and dirt.
3” DIA. VENT
MAX. LENGTH (FT.)
105
100
95
90
85
80
NUMBER OF
90o ELBOWS*(Inside bldg.)
1
2
3
4
5
6
2. Dry fit pipe and fittings to be connected for proper fit.
3. Clean pipe and fitting with a primer/cleaner.
4. Apply a thin coat of cement to fitting, avoiding puddling inside.
5. Apply a liberal coat of cement to pipe leaving no voids
6. QUICKLY assemble parts while cement is fluid! If you wait
too long, re-coat pipes.
ALL 40 AND 50 GALLON 40,000 BTU/HR MODELS OPTIONAL 2” VENT PIPING
2” DIA. VENT
MAX. LENGTH (FT.)
40
35
30
25
20
15
7. Push pipe completely into socket of fitting, turning as it goes
until it bottoms.
NUMBER OF
90o ELBOWS*(Inside bldg.)
1
2
3
4
5
6
8. Hold pipe and fitting together for 30 seconds. Then carefully
clean off excess with a cloth. Allow connections a sufficient
time to cure before disturbing.
9. Remember that vent pipes must be adequately and securely
supported.
APPROXIMATE SETTING TIME FOR
2 1/2” TO 4” PIPE JOINTS
* Two 45o elbows are equivalent to one 90o elbow.
One 90o elbow equals 5 feet of equivalent vent length.
CEMENTING PVC, ABS OR CPVC PIPE AND FITTINGS
90o F TO 150o F
50o F TO 90o F
0o F TO 50o F
Read and observe all safety information printed on primer,
cleaner and cement containers.
MOVEMENT
OF JOINTS
3/4 HR.
1 HR.
1 1/3 HR.
COMPLETE
SET
8 HRS.
15 HRS.
18 HRS.
CUTTING OPENING THROUGH AN OUTSIDE WALL AND
COLLAR INSTALLATION
After reading the manual and you have determined the location
of the opening in the wall, (using the drawing below), cut a
2 1/2” hole for 2” vent piping, 3 1/2” hole for 3” vent piping or a
4 1/2” hole for 4” vent piping through an exterior wall.
NOTE: When determining location of the opening in the
outside wall allow for the 1/8” rise per five feet that has
taken place in the horizontal run.
23
FIGURE 44.
• If there is to be a vertical run of vent from blower, the 3” PVC,
ABS or CPVC pipe must be attached to the blower using
3 sheet metal screws.
FIGURE 42.
FIGURE 45.
The 3” )or optional 2” or 4”) PVC, ABS or CPVC Schedule 40
vent pipe can be run from the water heater through the wall or
from the wall to the water heater, whichever is most convenient.
The vent pipe must extend a minimum of 1 1/2” through the
exterior wall. Extending the vent cap as far as possible from the
surface of the exterior wall will help minimize discoloration of
the wall in this area which may be caused by the flue gases.
• If the optional 2” vent piping is to be used (40,000 BTU/HR.
models only), the 2” street elbow, 3” to 2” reducer and
3” (minimum) section of 3” PVC, ABS or CPVC pipe must be
supplied locally. The 3” (minimum) section of 3” PVC, ABS
or CPVC pipe must be attached to the blower using 3 sheet
metal screws,
NOTE: that the inside collar must be slipped over the vent
piping before locating the pipe through the wall. Before
securing the inside and outside collars to the wall, use a
silicone sealer between pipe and opening to insure a water
and air tight seal.
• If the optional 4” vent piping is to be used (70,000 BTU/HR.
and higher models only), the 4” street elbow, 4” to 3” reducer
and 3” minimum section of 3” PVC, ABS or CPVC pipe must
be supplied locally. The 3” (minimum) section of 3” PVC,
ABS or CPVC pipe must be attached to the blower using
3 sheet metal screws.
INSTALLATION SHOWING USE OF PVC, ABS OR CPVC PIPE
VENTING THROUGH A ROOF - ALL MODELS
3” PVC, ABS or CPVC Schedule 40 vent piping:
• A 3” PVC Schedule 40 - 45o vent cap with wire screen is
supplied with the water heater.
• 3” PVC, ABS or CPVC Schedule 40 piping and fittings are
acceptable materials for the vent system on all models and
must be supplied locally.
75 GALLON 70,000 AND 75,000 BTU/HR MODELS ONLY OPTIONAL 4” VENT PIPING
• A wiring screen to fit a 4” PVC, ABS or CPVC Schedule
40 - 45o vent cap is supplied with the water heater.
FIGURE 43.
• A 3” PVC, ABS or CPVC Schedule 40 pipe, minimum length
of 3” (must be supplied locally), to make vent connection at
the blower outlet.
CONNECTING PVC, ABS OR CPVC PIPE VENT TO BLOWER
• If making an immediate horizontal run of vent off the blower,
a 3” PVC, ABS or CPVC Schedule 40 (supplied locally) elbow
is required. Place the elbow in the required direction on the
blower and using 3 sheet metal screws, attach the elbow.
• A 4” to 3” PVC, ABS or CPVC Schedule 40 reducer (must be
supplied locally).
24
• 4” and 3” PVC, ABS or CPVC Schedule 40 piping and fittings
are acceptable materials for vent system on all 75 gallon
70,000 and 75,000 BTU/HR models and must be supplied
locally.
FIGURE 46.
ALL 40 AND 50 GALLON 40,000 BTU/HR MODELS OPTIONAL 2” VENT PIPING
2” PVC, ABS or CPVC Schedule 40 vent piping:
• A wire screen to fit 2” PVC, ABS or CPVC Schedule 40 - 45o
vent cap is supplied with the water heater.
• A 3” PVC, ABS or CPVC Schedule 40 pipe, minimum length
of 3” (must be supplied locally), to make vent connection at
the blower outlet.
FIGURE 48.
• The total vertical and horizontal vent runs cannot exceed the
maximum length with the number of 90o elbows as specified
in the tables to follow. If more elbows are required, the venting
distance must be reduced 5 feet for every 90o elbow.
• A 3” to 2” PVC, ABS or CPVC Schedule 40 reducer (must be
supplied locally).
• 2” and 3” PVC, ABS or CPVC Schedule 40 piping and fittings
are acceptable materials for the vent system on all 40 and
50 gallon 40,000 BTU/HR models and must be supplied
locally.
75 GALLON 70,000 AND 75,000 BTU/HR MODELS ONLY
3” DIA. VENT
MAX. LENGTH (FT.)
70
65
60
55
50
45
NUMBER OF
90o ELBOWS*
1
2
3
4
5
6
75 GALLON 70,000 AND 75,000 BTU/HR MODELS ONLY OPTIONAL 4” VENT PIPING
4” DIA. VENT
MAX. LENGTH (FT.)
110
105
100
95
90
85
FIGURE 47.
• The water heater requires its own (separate) venting
system.
NUMBER OF
90o ELBOWS*
1
2
3
4
5
6
ALL 40 AND 50 GALLON 40,000 BTH/HR MODELS ONLY
• It cannot be connected to existing vent piping or chimney.
3” DIA. VENT
MAX. LENGTH (FT.)
115
110
105
100
95
90
• It must terminate vertically to the outdoors.
• Typical installation(s) in next column.
• Refer to “Cementing PVC, ABS or CPVC pipe and fittings”
on page 23 and “Connecting Vent to Blower” on page 24.
25
NUMBER OF
90o ELBOWS*
1
2
3
4
5
6
ALL 40 AND 50 GALLON 40,000 BTH/HR MODELS ONLY OPTIONAL 2” VENT PIPING
2” DIA. VENT
MAX. LENGTH (FT.)
50
45
40
35
30
25
The minimum inlet gas pressure shown on the rating plate is
that which will permit firing at the rated input.
NUMBER OF
90o ELBOWS*
1
2
3
4
5
6
* Two 45o elbows are equivalent to one 90o elbow.
One 90o elbow equals 5 feet of equivalent vent length.
Gas Piping
If a standard model is installed above 3,300 feet (1,006 m) or a
high altitude model is installed above 5,500 feet (1,676 m) the
input rating should be reduced at the rate of 4 percent for each
1,000 feet (305 m ) above sea level which requires replacement
of the burner orifice in accordance with National Fuel Gas Code
ANSI Z223.1/NFPA 54. Contact Maytag Customer Service
Center at 1-800-788-8899 or your local gas supplier or call
for further information.
Failure to replace the standard orifice with a high altitude orifice
when installed at elevations above 3,300 feet (1,006 m) or
above 5,500 feet (1,676 m) for high altitude model could result
in improper and inefficient operation of the appliance, producing
carbon monoxide gas in excess of safe limits, which could
result in serious injury or death. Contact Maytag Customer
Service at 1-800-788-8899 or your local gas supplier for any
specific changes which may be required in your area.
Make sure the gas supplied is the same type listed on the
model rating plate. The inlet gas pressure must not exceed
14 inch water column (2.6kPa) for natural and propane (L.P.)
gas. The minimum inlet gas pressure listed on the rating
plate is for the purpose of input adjustment. If the gas control
valve is subjected to pressures exceeding 1/2 pound per square
inch (3.5kPa), the damage to the gas control valve could result
in a fire or explosion from leaking gas.
If the main gas line Shut-off serving all gas appliances is used,
also turn “OFF” the gas at each appliance. Leave all gas
appliances shut “OFF” until the water heater installation is
complete.
A gas line of sufficient size must be run to the water heater.
Consult the current edition of National Fuel Gas Code ANSI
Z223.1/NFPA 54 and your gas supplier concerning pipe size.
Use pipe joint compound or teflon tape marked as being
resistant to the action of petroleum (Propane [L.P.]) gases.
There must be:
The appliance and its gas connection must be leak tested
before placing the appliance in operation.
• A readily accessible manual shut off valve in the gas supply
line serving the water heater, and
• A flexible gas connector or a ground joint union between the
shut off valve and control valve to permit servicing of the unit.
The appliance and its individual Shut-off valve shall be
disconnected from the gas supply piping system during any
pressure testing of that system at test pressures in excess of
1/2 pound per square inch (3.5kPa). It shall be isolated from
the gas supply piping system by closing its individual manual
Shut-off valve during any pressure testing of the gas supply
piping system at test pressures equal to or less than 1/2 pound
per square inch (3.5kPa).
Be sure to check all the gas piping for leaks before lighting the
water heater. Use a soapy water solution, not a match or open
flame. Rinse off soapy solution and wipe dry.
Connecting the gas piping to the gas control valve of the water
heater can be accomplished by either of the two methods,
shown in Figures 49 and 50.
• A drip leg (sediment trap) ahead of the gas control valve to
help prevent dirt and foreign materials from entering the
gas control valve.
26
Sediment Traps
of the gas control valve that may result in fire or explosion.
Before attaching the gas line be sure that all gas pipe is clean
on the inside. To trap any dirt or foreign material in the gas
supply line, a drip leg (sometimes called a sediment trap)
must be incorporated in the piping. The drip leg must be readily
accessible. Install in accordance with the Gas Piping section.
Refer to the current edition of the National Fuel Gas Code,
ANSI Z223.1/NFPA 54.
• Contaminants in gas lines can
cause fire or explosion.
Contaminants in the gas lines may cause improper operation
A sediment trap shall be installed as close to the inlet of the
water heater as practical at the time of water heater installation.
The sediment trap shall be either a tee fitting with a capped
nipple in the bottom outlet or other device recognized as an
effective sediment trap. If a tee fitting is used, it shall be installed
in conformance with one of the methods of installation, shown
in Figures 49 and 50.
FIGURE 49. GAS PIPING WITH FLEXIBLE CONNECTOR.
FIGURE 50. GAS PIPING WITH ALL
BLACK IRON PIPE TO GAS CONTROL.
• Clean all gas piping before
installation.
• Install drip leg in accordance
with NFPA 54.
CHECK FOR LEAKS
Be sure to check all your gas pipes for leaks before operating your water heater. Use a soapy water solution, not a match or open
flame. Check the factory gas fittings after the main burner is turned “ON”. Use a soapy water solution for this, too.
27
OPERATING INSTRUCTIONS
This water heater is equipped with an electronically operated
venting system and electronic control. For the burner to come
on, the water heater thermostat must call for heat. Then the
system will begin sequencing, each section proving itself before
gas is allowed to flow to the burner.
3. The venting manual reset switch must be in the closed
position. See “Venting Manual Reset Switch” in the
“Troubleshooting” section.
4. There is a non-resettable hi-limit switch in the thermostat,
which must be good (closed) for the thermostat to be
operated. See “High Temperature Limit Switch” in the
“Troubleshooting” section.
BEFORE THE WATER HEATER WILL OPERATE:
1. The control system must be connected to a grounded 110/
120 volt power supply. The control system has an overall
rating of 2 amps. The water heater must be securely and
adequately grounded in accordance with local codes and
with the current edition of the National Electrical Code ANSI/
NFPA 70.
OPERATION
When the thermostat calls for heat, gas is allowed to flow to a
(N/O) pressure switch closing it. An electrical circuit is then
made to the blower, turning it on. When the blower has achieved
sufficient venting, the air pressure switch will close. A 120 volt
circuit will be completed through the venting manual reset switch
and on the 120 volt gas valve. The 120 volt gas valve will open
allowing gas to flow to the burner. The hot surface ignitor will
establish a main burner flame.
2. The ON/OFF rocker switch, located on the control box above
the thermostat must be in the “ON” position for the electrical
control system to operate allowing the gas portion to operate
(ignite burner).
OR
FIGURE 51.
28
Operating
5. Cycle is completed.
CONTROL SEQUENCE - HOT SURFACE DIRECT IGNITION
Propane gas is heavier than air. Should there be a leak in the
system, the gas will settle near the ground. Basements, crawl
spaces, skirted areas under manufactured (mobile) homes
(even when ventilated), closets and areas below ground level
will serve as pockets for the accumulated gas in the area.
Search for odor of gas by sniffing at ground level in the vicinity
of the appliance. If odor is detected, follow steps indicated at
“For Your Safety” on the cover of this manual then leave the
premises.
Pre-purge
5 sec.
HSI Warm-Up
Ignition Activation Period
Flame Recognition Period
Ignition Trial
Interpurge
Post-purge
Retries
Reset from lockout
Flame Sensing (Nominal)
HSI Off/Run Mode
20 sec.
4 sec.
1 sec.
4 sec.
5 sec.
5 sec.
2
1 hr.
4.0 µ VDC
Temperature Regulation
Short repeated heating cycles caused by small hot water uses
can cause temperatures at the point of use to exceed the
thermostat by up to 30oF. If you experience this type of use you
should consider using lower temperature settings to reduce
scald hazards.
Any water heater’s intended purpose is to heat water. Hot
water is needed for cleansing, cleaning, and sanitizing (bodies,
dishes, clothing). Untempered hot water can present a scald
hazard. Depending on the time element, and the people
involved (adults, children, elderly, infirm, etc.) scalding may occur
at different temperatures.
Operating instructions are located on front of the water heater,
above or to the side of the gas control valve, see page 30.
CHECK FOR LEAKS
Be sure to check all your gas pipes for leaks before operating
your water heater. Use a soapy water solution, not a match or
open flame. Check the factory gas fittings when the main burner
is turned “ON”.
WATER HEATING IGNITION SEQUENCE
(Make sure gas and electric power are connected properly)
1. The ignition control module is powered and monitors the
system, waiting for a call for heat from the thermostat.
2. The thermostat calls for heat by reading a resistance value
within a given range directly proportional to water
temperature.
3. The control module:
a. Checks the pressure switch for an open circuit.
HOTTER WATER CAN SCALD: Water heaters are intended to
produce hot water. Water heated to a temperature which will
satisfy space heating, clothes washing, dish washing, and
other sanitizing needs can scald and permanently injure you
upon contact. Some people are more likely to be permanently
injured by hot water than others. These include the elderly,
children, the infirm, or physically/mentally handicapped. 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 precautions. In addition to using the lowest possible
temperature setting that satisfies your hot water needs, a
means such as a mixing valve, shall be used at the hot water
taps used by these people or at the water heater. Mixing valves
are available at plumbing supply or hardware stores, see
Figure 8 on page 9 and Figure 21 on page 15. Valves for
reducing point of use temperature by mixing cold and hot water
b. Energizes the blower.
c. Checks the pressure switch for a closed circuit to prove
draft.
d. Sends line voltage to the hot surface igniter with a
20-second warm up period.
e. Opens the gas valve and checks the sensing rod for flame.
4. The burner heats the water to the desired thermostat setting.
a. The resistance in the thermostat rises to the value
selected by the temperature control knob.
b. The control module closes the gas valve and 5 seconds
later, removes power from the blower.
29
b. To increase the temperature press and release the
“HOTTER” button until the desired setting is reached.
are also available. Consult Maytag Customer Service
(1-800-788-8899). Follow manufacturer’s instructions for
installation of the valves. Before changing the factory setting
on the thermostat, read the Temperature Regulation section in
this manual, see Figure 52.
NOTE: Holding down the button will not continue to lower or
raise the temperature setting. The button must be pressed
and released for each temperature change desired.
Never allow small children to use a hot water tap, or to draw
their own bath water. Never leave a child or handicapped person
unattended in a bathtub or shower.
NOTE: A water temperature range of 120°F-140°F (49°C-60°C)
is recommended by most dishwasher manufacturers.
The thermostat of this water heater has been factory set at its
lowest position, to reduce the risk of scald injury. It is adjustable
and must be reset to the desired temperature setting. The
mark ( ) HOT indicative of approximately 120°F (49°C) is
preferred starting point. Some states have a requirement for a
lower setting. If you need hotter water, follow directions for
temperature adjustment, but beware of the warnings in this
section.
Pressing the “COOLER”
pressing the “HOTTER”
button decreases temperature and
button increases the temperatures.
Should overheating occur or the gas supply fail to shut off, turn
off the manual gas control valve to the appliance.
To avoid any unintentional changes in water temperature
settings, the control has a tamper resistant feature for changing
the temperature setting. To change the temperature setting
follow these instructions:
Display
A B C
Temperature Setting
C = Flashing = approx. 160°F
C = Approx. 150°F
1. “Wake Up” the temperature indicators by holding down both
“COOLER” and “HOTTER” temperature adjustment buttons
at the same time for one second, see Figure 49. One or two
of the temperature indicators will light up. These indicators
will only remain on for 30 seconds if no further buttons are
pressed. After 30 seconds the control will go back to “Sleep”
mode.
Time to Produce
2nd & 3rd Degree
Burns on Adult Skin
About 1/2 seconds
About 1 1/2 seconds
B = Approx. 140°F
Less than 5 seconds
A = Approx. 130°F
About 30 seconds
= Approx. 120°F
More than 5 minutes
WARM = Approx. 80°F
--------------
FIGURE 52.
NOTE: Water temperature range of 120 o F-140 o F
recommended by most dishwasher manufacturers.
2. Release both temperature adjustment buttons.
Should overheating occur or the gas supply fail to shut off,
turn “OFF” the manual gas control valve to the appliance.
a.To decrease the temperature press and release the
“COOLER” button until the desired setting is reached.
30
OPERATING INSTRUCTIONS
FOR YOUR SAFETY READ BEFORE LIGHTING
WARNING:
If you do not follow these instructions exactly, a fire or
explosion may result causing property damage, personal injury or loss of life.
BEFORE OPERATING: ENTIRE SYSTEM MUST BE FILLED WITH WATER AND AIR PURGED FROM ALL LINES.
A. This appliance does not have a pilot. It is equipped with
an ignition device which automatically lights the burner.
Do NOT try to light the burner by hand.
B. BEFORE LIGHTING smell all around the appliance area
for gas. Be sure to smell next to the floor because some
gas is heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS:
• Do not try to light any appliance.
• Do not touch any electric switch; do not use any phone
in your building.
• Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.
•
If you cannot reach your gas supplier, call the fire
department.
C. Use only your hand to push in or turn the gas control
button. Never use tools. If the control button will not push
in, don’t try to repair them, call a qualified service
technician . Force or attempted repair may result in a fire
or explosion.
D. Do not use this appliance if any part has been under
water. Immediately contact a qualified installer or service
agnecy to replace a flooded water heater. Do not attempt
to repair the unit! It must be replaced!
LIGHTING INSTRUCTIONS
1.
STOP! Read the safety information above on
this label.
5.
The appliance is equipped with a device which automatically
lights the burner.
DO NOT TRY TO LIGHT THE BURNER BY HAND.
6.
Wait five (5) minutes to clear out any gas. If you then smell
gas, STOP! Follow “B” in the safety information above
on this label. If you don’t smell gas, go to next step.
7.
Turn on all electrical power to the appliance.
8.
Set the ON/OFF switch on the control box to the “ON”
position.
9.
Set the thermostat to desired setting by first pressing the
COOLER and HOTTER buttons together and holding
for 1 second. Then press the HOTTER button.
10. WATER TEMPERATURE ADJUSTMENT
120oF.
is approximately
2.
Set the ON/OFF switch on the control box to the “ON”
position.
3.
Set the thermostat to the lowest setting by first pressing
the COOLER and HOTTER buttons together and holding
for 1 second. Then press the COOLER button until the
WARM indicator light appears.
11. If the appliance will not operate, follow the instructions “TO
TURN OFF GAS TO APPLIANCE” and call your technician or
gas supplier.
Set the ON/OFF switch on the control box to the “OFF”
position.
WARNING: TURN OFF ALL ELECTRIC POWER
BEFORE SERVICING.
4.
CAUTION: Hotter water increases the risk of
scald injury. Consult the instructions manual
before changing temperature.
TO TURN OFF GAS TO APPLIANCE
2. Set the ON/OFF switch on the control box to the “OFF”
position.
1. Set thermostat to the lowest setting by first pressing
the COOLER and HOTTER buttons together and
holding for 1 second. Then press the COOLER button
until the WARM indicator light appears.
3. Turn off all electric power to the appliance if service is to
be performed.
31
SERVICE AND MAINTENANCE
Tank (Sediment) Cleaning
Burner Inspection
Sediment build-up on the tank bottom may create varying
amount of noise, if left in the tank will cause permanent tank
failure. In some water areas, sediment can be removed by
draining off approximately one gallon of water each month.
Flood damage to a water heater may not be readily visible or
immediately detectable. However, over a period of time a
flooded water heater will create dangerous conditions which
can cause DEATH, SERIOUS BODILY INJURY, OR PROPERTY
DAMAGE. Contact the Maytag dealer from whom the appliance
was purchased or call Maytag Customer Service at
1-800-788-8899 for an authorized servicer to replace a
flooded water heater. Do not attempt to repair the unit! It
must be replaced!
Vent System Inspection
At least once a year a visual inspection should be made of the
main burner and pilot burner, see Figure 50.
You should check for sooting. Soot is not normal and will impair
proper combustion.
• Flue gases may escape if vent pipe
is not connected.
Soot build-up indicates a problem that requires correction
before further use. Turn “OFF” gas to water heater and
leave off until repairs are made, because failure to correct the
cause of the sooting can result in a fire causing death, serious
injury, or property damage.
• Be alert for obstructed, sooted or
deteriorated vent system to avoid
serious injury or death.
• Do not store corrosive chemicals
in vicinity of water heater.
If improper flame characteristics are not evident, check for
accumulation of lint or other foreign material that restricts or
blocks the air openings in the heater or burner. Also check
Combustion Air and Ventilation Requirements.
• Chemical corrosion of flue and vent
system can cause serious injury or
death
At least once a year a visual inspection should be made of the
venting system. You should look for:
• Obstructions which could cause improper venting. The
combustion and ventilation air flow must not be obstructed.
• Damage or deterioration which could cause improper
venting or leakage of combustion products.
FIGURE 53.
• Rusted flakes around top of water heater.
Burner Cleaning
Be sure the vent piping is properly connected to prevent escape
of dangerous flue gasses which could cause deadly
asphyxiation.
NOTE: Burner assembly must be handled carefully to avoid
damaging the hot surface ignitor.
Obstructions and deteriorated vent systems may present
serious health risk or asphyxiation.
In the event your burner needs cleaning, following these
instructions:
Chemical vapor corrosion of the flue and vent system may
occur if air for combustion contains certain chemical vapors.
Spray can propellants, cleaning solvents, refrigerator and air
conditioner refrigerants, swimming pool chemicals, calcium
and sodium chloride, waxes, bleach and process chemicals
are typical compounds which are potentially corrosive.
If inspection of the burner shows that cleaning is required, turn
the “ON/OFF” rocker switch located on the control box to
“OFF” position and allow the burner to cool.
Loose deposits on or around the burner can be removed by
carefully using the hose of a vacuum cleaner inserted through
the access door of the water heater. If the burner needs to be
removed for additional cleaning, call the local gas utility or
qualified service agent to remove and clean the burner with a
soft brush. Clean main burner orifice with a suitable soft
material. Correct the problem that requires the burner to be
cleaned.
If after inspection of the vent system you found sooting or
deterioration, something is wrong. Call Maytag Customer
Service at 1-800-788-8899 for an authorized servicer or your
local gas supplier to correct the problem and clean or replace
the flue and venting before resuming operation of the water
heater.
32
INSTALLED IN SUITABLE AREA: To insure sufficient ventilation
and combustion air supply, proper clearances from the water
heater must be maintained. See Facts to Consider About the
Location section. Combustible materials such as clothing,
cleaning materials, or flammable liquids, etc. must not be
placed against or adjacent to the water heater which can cause
a fire.
L.P. Gas Control Valve & Burner Assembly
Replacement Information
For Propane (L.P.) Models Only
Your water heater is equipped with a Propane (L.P.) gas control
valve and a main burner assembly with left hand threads for
the following fittings and their connections.
Anode Rod Inspection
• The connection between the manifold and the gas control
valve (A and B) are left hand threads.
• The connection between the main burner orifice and the
manifold (C to D) are left hand threads.
For ordering these replacement parts, please refer to the “Repair
Parts List” section of this manual.
The anode rod is used to protect the tank from corrosion. Most
hot water tanks are equipped with an anode rod. The
submerged rod sacrifices itself to protect the tank. Instead of
corroding the tank, water ions attack and eat away the anode
rod. This does not affect the water’s taste or color. The rod
must be maintained to keep the tank in operating condition.
Anode deterioration depends on water conductivity, not
necessarily water condition. A corroded or pitted anode rod
indicates high water conductivity and should be checked and/
or replaced more often than an anode rod that appears to be
intact. Replacement of a depleted anode rod can extend the
life of your water heater. Inspection should be conducted by a
qualified technician. At a minimum, the anode(s) should be
checked annually after the warranty period.
Draining
The water heater should be drained if being shut down during
freezing temperatures. Also periodic draining and cleaning of
sediment from the tank may be necessary.
FIGURE 54.
Housekeeping
Vacuum around base of water heater for dust, dirt, and lint on a
regular basis.
• Turn “OFF” gas supply to the water heater.
• CLOSE the cold water inlet valve to the water heater.
• OPEN a nearby hot water faucet and leave open to allow for
draining.
• Connect a hose to the drain valve and terminate to an
adequate drain.
• OPEN the water heater drain valve to allow for tank draining.
33
NOTE: If the water heater is going to be shut down and
drained for an extended period, the drain valve should be
left open with hose connected allowing water to terminate
to an adequate drain.
line or a water meter with a check valve. Consult Maytag
Customer Service at 1-800-788-8899 for further information.
Do not plug the temperature-pressure relief valve.
Drain Valve Washer Replacement
• CLOSE the drain valve.
(See Figure 56)
• Follow instructions in the Filling The Water heater section.
NOTE: For ordering replacement washers, refer to the
“Repair Parts List” section of this manual.
• Follow the lighting instructions in the Operation section to
restart the water heater.
Temperature-Pressure Relief Valve Operation
• Turn “OFF” gas supply to water heater.
• Follow “Draining” instructions.
The temperature-pressure relief valve must be manually
operated at least once a year.
• Turning counter clockwise (
the screw handle.
), remove the hex cap below
• Remove the washer and put the new one in place.
• Screw the handle and cap assembly back into the drain
valve and retighten using a wrench. DO NOT OVER
TIGHTEN.
• Follow instructions in the Filling The Water Heater section.
• Check for leaks.
• Follow the lighting instructions in the Instructions for
Operation section to restart the water heater.
When checking the temperature-pressure relief valve operation,
make sure that (1) no one is in front of or around the outlet of
the temperature-pressure relief valve discharge line, and (2)
that the water discharge will not cause any property damage,
as the water may be extremely hot, see Figure 55.
FIGURE 56.
Service
FIGURE 55.
Before calling for repair service, read the Start Up Conditions
and Operational Conditions found in the Troubleshooting Guide
of this manual.
If after manually operating the valve, it fails to completely reset
and continues to release water, immediately close the cold
water inlet to the water heater, follow the draining instructions,
and replace the temperature-pressure relief valve with a new
one.
If a condition persists or you are uncertain about the operation
of the water heater, let the Maytag Customer Service Center
check it out.
If the temperature-pressure relief valve on the appliance weeps
or discharges periodically, this may be due to thermal
expansion. You may have a check valve installed in the water
Call the Maytag Customer Service at 1-800-788-8899 for an
authorized servicer.
34
TROUBLESHOOTING
Start Up Conditions
Water supply system may, because of such events as high line
pressure, frequent cut-offs, the effects of water hammer among
others, have installed devices such as pressure reducing
valves, check valves, back flow preventers, etc., to control these
types of problems. When these devices are not equipped with
an internal by-pass, and no other measures are taken, the
devices cause the water system to be closed. As water is
heated, it expands (thermal expansion) and closed systems
do not allow for the expansion of heated water.
Condensation
Whenever the water heater is filled with cold water, some
condensate will form while the burner is on. A water heater may
appear to be leaking when in fact the water is condensation.
This usually happens when:
• A new water heater is filled with cold water for the first time.
The water within the water heater tank expands as it is heated
and increases the pressure of the water system. If the relieving
point of water heater’s temperature-pressure relief valve is
reached, the valve will relief the excess pressure. The
temperature-pressure relief valve is not intended for the
constant relief of thermal expansion. This is an unacceptable
condition and must be corrected.
• Burning gas produces water vapor In water heaters,
particularly high efficiency models where flue temperatures
are lower.
• Large amounts of hot water are used in a short time and the
refill water in the tank is very cold.
It is recommended that any devices installed which could create
a closed system have a by-pass and/or the system have an
expansion tank or device to relieve the pressure built by thermal
expansion in the water system. Thermal expansion tanks are
available for ordering through the Maytag Customer Service
Center (1-800-788-8899). Contact the local plumbing inspector,
water supplier and/or call Maytag Customer Service at
1-800-788-8899 for assistance in controlling these situations.
Moisture from the products of combustion condense on the
cooler tank surfaces and form drops of water which may fall
onto the burner or other hot surfaces to produce a “sizzling” or
“frying” noise.
Because of the suddenness and amount of water,
condensation water may be diagnosed as a “tank leak”. After
the water in the tank warms up (about 1-2 hours), the condition
should disappear.
Strange Sounds
Do not assume the water heater is leaking until there has
been enough time for the water in the tank to warm up.
Possible noises due to expansion and contraction of some
metal parts during periods of heat-up and cool-down do not
represent harmful or dangerous conditions.
An undersized water heater will cause more condensation.
The water heater must be sized properly to meet the family’s
demands for hot water including dishwashers, washing
machines and shower heads.
Condensation causes sizzling and popping within the burner
area during heating and cooling periods and should be
considered normal. See Condensation section.
Excessive condensation may be noticed during the winter and
early spring months when incoming water temperatures are at
their lowest.
Operational Conditions
Good venting is essential for a gas fired water heater to operate
properly as well as to carry away products of combustion and
water vapor.
Smelly Water
In each water heater there is installed at least one anode rod
(see parts section) for corrosion protection of the tank. Certain
water conditions will cause a reaction between this rod and
the water. The most common complaint associated with the
anode rod is one of a “rotten egg smell”. This odor is derived
from hydrogen sulfide gas dissolved in the water. The smell is
the result of four factors which must all be present for the odor
to develop:
Smoke / Odor
It is not uncommon to experience a small amount of smoke
and odor during the initial start-up. This is due to burning off of
oil from metal parts, and will disappear in a short while.
Thermal Expansion
• a concentration of sulfate in the supply water.
• little or no dissolved oxygen in the water.
• a sulfate reducing bacteria within the water heater. (This
harmless bacteria is non-toxic to humans.)
• an excess of active hydrogen in the tank. This is caused by
the corrosion protective action of the anode.
Smelly water may be eliminated or reduced in some water
heater models by replacing the anode(s) with one of less active
material, and then chlorinating the water heater tank and all
35
hot water lines. Contact Maytag Customer Service at
1-800-788-8899 for further information concerning an Anode
Replacement Kit and this Chlorination Treatment.
If the smelly water persists after the anode replacement and
chlorination treatment, we can only suggest that chlorination
or aeration of the water supply be considered to eliminate the
water problem.
Do not remove the anode leaving the tank unprotected. By
doing so, all warranty on the water heater tank is voided.
“AIR” In Hot Water Faucets
FIGURE 57.
Not Enough or No Hot Water
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 conditions, we recommend the hot water faucet,
located farthest away, be opened for several minutes before
any electrical appliances which are connected to the hot water
system are used (such as a dishwasher or washing machine).
If hydrogen gas is present, there will probably be an unusual
sound similar to air escaping through the pipe as the hot water
faucet is opened. There must be no smoking or open flame
near the faucet at the time it is open.
1. Check the manual gas shut off valve to be sure it is open.
2. The ON/OFF switch on the control box must be “ON”.
3. The temperature button adjustment may be set too low. See
the Temperature Regulation” section.
4. The gas company can check the gas input to see if it is
correct. An under-fired water heater will not heat water as
quickly.
5. Look for leaking or open hot water faucets. Make sure all
are closed.
High Temperature Limit Switch
(Single-Use Type Energy Cut Off)
6. The cold water inlet temperature may be colder during the
winter months. It will take longer to heat the water and seem
like less hot water.
The thermostat has a built-in limit switch which will actuate in
case of excessive water temperatures. The heater cannot be
relit until the gas control valve is replaced. It is important that a
serviceman be called to determine the reason for limit operation
and thus avoid repeated thermostat replacement. Lower the
temperature adjustment setting on new control. Call Maytag
Customer Service at 1-800-788-8899 for an authorized
servicer.
7. If you cannot find what is wrong, call Maytag Customer
Service 1-800-788-8899 for an authorized servicer.
Water is Too Hot
Should overheating occur or the gas supply fail to shut off,
turn “OFF” the manual gas control valve to the appliance.
1. The temperature adjustment dial may be set too high. See
the “Temperature Adjustment” section.
Venting Manual Reset Switch
NOTE: A period of time is necessary after an adjustment has
been made for the water temperature to reach the new
temperature setting.
There is a venting manual reset switch located on the draft
hood. If the venting manual reset switch is activated, it will not
reset itself. Before resetting this venting manual reset switch,
check for flue blockage and propriety of the venting system. To
reset the venting manual reset switch, press the red reset button.
2. If lower temperature settings will not lower the water
temperature, call Maytag Customer Service 1-800-788-8899
for an authorized servicer.
36
Leakage from other appliances, water lines, or ground seepage
should also be checked.
Leakage Checkpoints
* To check where threaded portion enters tank, insert cotton
swab between jacket opening and fitting. If cotton is wet,
follow “Draining” instructions in the Periodic Maintenance
section and then remove fitting. Put pipe dope or teflon tape
on the threads and replace. Then follow Filling the Water
Heater instructions in the Installation Instructions section.
Read this manual first. Then before checking the water heater
make sure the gas supply has been turned “OFF”, and never
turn the gas “ON” before the tank is completely full of water.
Never use this water heater unless it is completely filled with
water. To prevent damage to the tank, the tank must be filled
with water. Water must flow from the hot water faucet before
turning “ON” gas to the water heater, see Figure 58.
A. Water at the draft hood is water vapor which has condensed
out of the combustion products. This is caused by a problem
in the vent. Call Maytag Customer Service at
1-800-788-8899 for an authorized servicer.
B. *Condensation may be seen on pipes in humid weather or
pipe connections may be leaking.
C. *The primary anode rod fitting may be leaking.
D. Small amounts of water from temperature-pressure relief
valve may be due to thermal expansion or high water
pressure in your area.
E. *The temperature-pressure relief valve may be leaking at
the tank fitting.
F. Water from a drain valve may be due to the valve being
slightly opened.
G. *The drain valve may be leaking at the tank fitting.
H. Combustion products contain water vapor which can
condense on the cooler surfaces of the tank. Droplets form
and drip onto the burner or run on the floor. This is common
at the time of start-up after installation and when incoming
water is cold.
I. Water in the water heater bottom or on the floor may be from
condensation, loose connections, or the relief valve.
DO NOT replace the water heater until a full inspection of all
possible water sources is made and necessary corrective
steps taken.
FIGURE 58.
37
TROUBLESHOOTING (Continued)
This troubleshooting guide has been supplied for use by qualified service personnel who have a complete understanding of both
electricity and gas.
Label all wiring before disconnecting any wiring; to ensure correct reconnection. Failure to follow this instruction could cause
improper and possible dangerous operation, resulting in DEATH, SERIOUS BODILY INJURY, OR PROPERTY DAMAGE.
THERMOSTAT AND GAS SUPPLY CHECK
NO
Is gas being supplied to the
thermostat?
YES
Turn “ON” gas supply.
Is thermostat calling for heat?
Run (HOT) water from heater and
set adjustment button higher.
Check using a manometer at
thermostat pressure tap.
YES
Is there a minimum gas pressure
4” W.C. for natural gas or 10” W.C.
for propane (L.P.) gas?
Call gas company to increase gas
pressure.
NO
YES
GO TO SYSTEM CHECK
SECTION, PAGE 39.
38
SYSTEM CHECK
Please check guidelines below. For your safety, water heater service should be performed only by a qualified service technician.
DO NOT BY-PASS ANY CONTROLS TO MAKE HEATER OPERATE. OPERATE ONLY AS WIRED FROM FACTORY.
LED STATUS
A B C
PROBLEM
An open earth ground circuit to the
ignition system.
SOLUTION
1. Check that the earth ground connection is
properly connected.
2. Check that the ground conductor on the
water heater is properly connected.
A B C
Wiring error or a high resistance to
earth ground.
1. Check for proper connection of line
neutral and hot wires.
2. Check that the water heater is securely
connected to earth ground.
Pressure switch remained closed longer
than 5 seconds after the call for
heat began.
1. Pressure switch wiring is incorrect.
2. Replace pressure switch.
A B C
Pressure switch remained open longer
than 5 seconds after the combustion
blower was energized.
1. Pressure switch wiring is incorrect.
2. Pressure switch tubing not connected
correctly.
3. Air intake or exhaust obstructed.
A B C
Error in the hot surface ignitor circuit.
1. Check that all wiring is correct and secure.
2. Replace hot surface ignitor.
System in lockout.
1. Gas supply is off or too low to operate.
2. Hot surface ignitor not positioned
correctly.
3. Low voltage to the water heater.
4. Electric polarity to unit is incorrect - test
and correct.
A B C
Problem in the gas valve driver circuit.
1. Turn power to the water heater off for
10 seconds and then back on.
2. Replace gas control valve.
A B C
Problem with the internal circuit.
1. Turn power to the water heater off for
10 seconds and then back on.
2. Replace gas control valve.
A B C
Problem with the internal circuit.
1. Turn power to the water heater off for
10 seconds and then back on.
2. Replace gas control valve.
A B C
Flame signal sensed out of
proper sequence.
1. Replace gas control valve.
A B C
ECO activated.
WATER HEATER CONTROL
A B C
10
A B C
A B C
A B C
1. Replace gas control valve.
One of the temperature adjust
buttons stuck closed.
1. Press and release each of the buttons once.
2. Replace gas control valve.
Water temperature sensor is
either open or short circuited.
1. Check that all wiring is correct and secure.
2. Replace gas control valve.
39
TROUBLESHOOTING (Continued)
These guidelines should be used by a qualified Maytag Customer Service Center Agent. Call the
Maytag Customer Service Center at 1-800-788-8899 for assistance.
Problem
Cause
Solution
Blower will not run.
NOT ENOUGH
HOT WATER
A) “ON/OFF” control switch turned off
Turn switch to the “ON” position.
B) Blower unplugged.
Plug blower back into 115 VAC outlet.
C) No power at outlet.
Repair service to outlet.
D) Thermostat defective.
Replace thermostat.
E) Control harness defective.
Replace control harness.
F) High limit control circuit open.
Replace ECO.
G) Blower motor defective.
Replace blower assembly.
Thermostat problems.
A) Thermostat set too low.
Set temperature control higher.
B) Thermostat or ECO defective.
Replace thermostat or ECO as required.
Others.
A) Heater undersized.
Reduce hot water use.
B) Low gas pressure.
Contact dealer.
C) Incoming water is unusually cold.
Allow more time for heater to reheat.
D) Leaking hot water pipes or fixtures.
Have plumber check and repair leaks.
A) Not enough dilution air to mix with flue gases.
Proper dilution air must be provided for dilution of flue
B) Dilution air too hot for mixing with flue gases.
Check for heat sources around and/or blockage of
temp. Refer to “Installation Instructions” section.
VENT PIPE TOO HOT
(ABOVE 170OF
YELLOW FLAME
dilution air intake at draft hood. (see page 28).
C) Wrong burner assembly.
Install correct orifice.
A) Dirt in burner ports.
Turn off heater and gas, clean burner head.
B) Combustion air path restricted.
Check dilution air intake, exhaust venting and air openings
in bottom base pan for obstructions or blockage.
CONDENSATION
C) Not enough dilution air.
Check dilution air intake for obstructions or blockage.
A) Water on the floor under heater.
See “Condensation” section.
B) Water dripping from the blower assembly.
Provide drip “TEE” to catch condensation from horizontal
section of exhaust vent close to blower assembly.
Improperly sealed, hot or cold supply connections,
Tighten threaded connections.
relief valve, drain valve or thermostat threads.
WATER LEAKS
LEAKING T & P
Leakage from other appliances or water lines.
Inspect other appliances near the water heater.
Condensation of flue products.
See “Condensation” section.
Thermal expansion in closed water system.
Install thermal expansion tank (DO NOT plug T & P valve).
Improperly seated valve.
Check relief valve for proper operation (DO NOT plug
High sulfate or mineral content in water supply.
Drain and flush heater thoroughly then refill.
T & P valve).
HOT WATER ODORS
(Refer to Smelly Water)
WATER TOO HOT
WATER HEATER SOUNDS
SIZZLING-RUMBLING
Bacteria in water supply.
Chlorinate water supply.
Thermostat set too high.
Refer to TEMPERATURE REGULATION.
Condensation dripping on burner.
See “Condensation” section.
Sediment at bottom of heater tank.
Clean sediment from tank. Refer to “Draining” instruction
in “Maintenance” section of manual.
SOOTING
HEATER LIGHTS BUT GOES
OUT IN 4-5 SECONDS
Improper combustion.
Refer to “Combustion Air and Ventilation” on pages 11-14.
Outlet polarity is reversed.
Test polarity and correct.
40
REPAIR PARTS LIST
MAYTAG GAS WATER HEATERS
MODEL NO’S
HRN11240P
HRN31240P
HRP11240P
HRP31240P
40
40
40
40
Gallon Natural Gas
Gallon Natural Gas
Gallon Propane Gas (L.P.)
Gallon Propane Gas (L.P.)
PCV, ABS OR CPVC ITEMS
FOR ALL MODELS SUPPLIED
LOCALLY
Key
No.
1
2
3
*4
5
6
7
8
9
10
11
12
13
14
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
*31
Model Numbers
Part Description
Temperature-Pressure Relief Valve
Primary Anode Rod
Drain Valve
Drain Valve Washer (17/32” x 13/64” x 1/8” thick)
Secondary Anode Rod w/Heat traps
Pressure Switch
Power Cord
On/Off Switch
Burner Orifice (Drill Size)
Manifold
Burner
Outer Door
Inner Door
Gas Control Valve (Natural)
Gas Control Valve (Propane{L.P.])
Dip Tube
Flue Baffle
Junction Box Cover
Inlet Nipple w/Heat Traps
Pipe Insulation (2 ea.)
Wiring Harness
T & P Insulation
Water Heater Stand
Blower/ Draft Hood Ass’y
Venting Switch
3” or 2” Schedule 40 90 o Elbow
3” or 2” Schedule 40 Vent Pipe
Wall Collar
3” PVC Vent Terminal
Hot Surface Ignition Ass’y
Mounting Bracket
Manual
HRN11240P
66001700
66001020
66001015
66001021
66001881
66001369
66001372
66001247
66001538
66001530
66001027
66001190
66001029
66001527
-------66001617
66001399
66001895
66001707
66001755
66001526
66001709
66001243
66001366
66001367
---------------66001262
66001255
66001525
66001896
66001897
HRN31240P
66001700
66001020
66001015
66001021
66001881
66001369
66001372
66001247
66001538
66001530
66001027
66001190
66001029
66001527
-------66001617
66001399
66001895
66001707
66001755
66001526
66001709
66001243
66001366
66001367
--------------66001262
66001255
66001525
66001896
66001897
HRP11240P
66001700
66001020
66001015
66001021
66001881
66001369
66001372
66001247
66001538
66001533
66001027
66001190
66001029
-------66001528
66001617
66001399
66001895
66001707
66001755
66001526
66001709
66001243
66001366
66001367
--------------66001262
66001255
66001525
66001896
66001897
HRP31240P
66001700
66001020
66001015
66001021
66001881
66001369
66001372
66001247
66001538
66001533
66001027
66001190
66001029
-------66001528
66001617
66001399
66001895
66001707
66001755
66001526
66001709
66001243
66001366
66001367
--------------66001262
66001255
66001525
66001896
66001897
* Not Shown.
Now that you have purchased this gas water heater, should a need
ever exist for repair parts or service, simply call Maytag Customer
Service at 1-800-788-8899 for an authorized servicer. Be sure to
provide all pertinent facts when you call or visit.
When ordering repair parts, always give the following information:
THIS IS A REPAIR PARTS LIST, NOT A PACKING LIST.
The model number of this gas water heater will be found on the model
rating plate located near the gas control valve.
41
•
Model number
•
Serial Number
•
Part Description
•
Part Number
REPAIR PARTS LIST
MAYTAG GAS WATER HEATERS
MODEL NO’S
HRN11250P
HRN31250P
HRP11250P
HRP31250P
50
50
50
50
Gallon Natural Gas
Gallon Natural Gas
Gallon Propane Gas (L.P.)
Gallon Propane Gas (L.P.)
PCV, ABS OR CPVC ITEMS
FOR ALL MODELS SUPPLIED
LOCALLY
Key
No.
1
2
3
*4
5
6
7
8
9
10
11
12
13
14
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
*31
Model Numbers
Part Description
Temperature-Pressure Relief Valve
Primary Anode Rod
Drain Valve
Drain Valve Washer (17/32” x 13/64” x 1/8” thick)
Secondary Anode Rod w/Heat traps
Pressure Switch
Power Cord
On/Off Switch
Burner Orifice (Drill Size)
Manifold
Burner
Outer Door
Inner Door
Gas Control Valve (Natural)
Gas Control Valve (Propane{L.P.])
Dip Tube
Flue Baffle
Junction Box Cover
Inlet Nipple w/Heat Traps
Pipe Insulation (2 ea.)
Wiring Harness
T & P Insulation
Water Heater Stand
Blower/ Draft Hood Ass’y
Venting Switch
3” or 2” Schedule 40 90o Elbow
3” or 2” Schedule 40 Vent Pipe
Wall Collar
3” PVC Vent Terminal
Hot Surface Ignition Ass’y
Mounting Bracket
Manual
HRN11250P
66001700
66001020
66001015
66001021
66001898
66001368
66001372
66001247
66001538
66001659
66001027
66001190
66001029
66001527
-------66001052
66001399
66001899
66001707
66001755
66001526
66001709
66001243
66001366
66001367
---------------66001262
66001255
66001525
66001896
66001897
* Not Shown.
Now that you have purchased this gas water heater, should a need
ever exist for repair parts or service, simply call Maytag Customer
Service at 1-800-788-8899 for an authorized servicer. Be sure to
provide all pertinent facts when you call or visit.
HRN31250P
66001700
66001020
66001015
66001021
66001898
66001368
66001372
66001247
66001638
66001659
66001027
66001190
66001029
66001527
-------66001052
66001399
66001899
66001707
66001755
66001526
66001709
66001243
66001366
66001367
--------------66001262
66001255
66001525
66001896
66001897
HRP11250P
66001700
66001020
66001015
66001021
66001898
66001368
66001372
66001247
66001540
66001659
66001027
66001190
66001029
-------66001528
66001052
66001399
66001899
66001707
66001755
66001526
66001709
66001243
66001366
66001367
--------------66001262
66001255
66001525
66001896
66001897
HRP31250P
66001700
66001020
66001015
66001021
66001898
66001368
66001372
66001247
66001515
66001659
66001027
66001190
66001029
-------66001528
66001052
66001399
66001899
66001707
66001755
66001526
66001709
66001243
66001366
66001367
--------------66001262
66001255
66001525
66001896
66001897
When ordering repair parts, always give the following information:
THIS IS A REPAIR PARTS LIST, NOT A PACKING LIST.
The model number of this gas water heater will be found on the model
rating plate located near the gas control valve.
42
•
Model number
•
Serial Number
•
Part Description
•
Part Number
REPAIR PARTS LIST
MAYTAG GAS WATER HEATERS
MODEL NO’S
HRN11275P
HRN31275P
HRP11275P
HRP31275P
75
75
75
75
Gallon Natural Gas
Gallon Natural Gas
Gallon Propane Gas (L.P.)
Gallon Propane Gas (L.P.)
PCV, ABS OR CPVC ITEMS
FOR ALL MODELS SUPPLIED
LOCALLY
Key
No.
1
2
3
*4
5
6
7
8
9
10
11
12
13
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
*33
Model Numbers
Part Description
Temperature-Pressure Relief Valve
Primary Anode Rod
Drain Valve
Drain Valve Washer (17/32” x 13/64” x 1/8” thick)
Pressure Switch
Power Cord
On/Off Switch
Burner Orifice (Drill Size)
Manifold
Burner
Outer Door
Inner Door
Gas Control Valve (Natural)
Gas Control Valve (Propane{L.P.])
Dip Tube
Flue Baffle
PV Switch Cover
Cold and Hot Water Nipples
Wiring Harness
T & P Insulation
Water Heater Stand
Draft Hood Ass’y
Gasket Blower
Blower
Wall Collar
Vent-Blower Adapter
Venting Switch
3” PVC Vent Terminal
3” or 4” Schedule 40 Vent Pipe
3” or 4” Schedule 40 90o Elbow
Hot Surface Ignition Ass’y
Mounting Bracket
Pipe Insulation (2 ea.)
Manual
HRN11275P
66001700
66001020
66001015
66001021
66001294
66001372
66001247
66001900
66001532
66001221
66001190
66001146
66001657
-------66001030
66001350
66001895
66001148
66001526
66001709
66001243
66001401
66001291
66001402
66001262
66001403
66001342
66001255
---------------66001524
66001896
66001034
66001897
* Not Shown.
Now that you have purchased this gas water heater, should a need
ever exist for repair parts or service, simply call Maytag Customer
Service at 1-800-788-8899 for an authorized servicer. Be sure to
provide all pertinent facts when you call or visit.
HRN31275P
66001700
66001020
66001015
66001021
66001294
66001372
66001247
66001901
66001532
66001221
66001190
66001146
66001657
-------66001030
66001350
66001895
66001148
66001526
66001709
66001243
66001401
66001291
66001402
66001262
66001403
66001342
66001255
--------------66001524
66001896
66001034
66001897
HRP11275P
66001700
66001020
66001015
66001021
66001294
66001372
66001247
66001902
66001532
66001221
66001190
66001146
-------66001658
66001030
66001350
66001895
66001148
66001526
66001709
66001243
66001401
66001291
66001402
66001262
66001403
66001342
66001255
--------------66001524
66001896
66001034
66001897
HRP31275P
66001700
66001020
66001015
66001021
66001294
66001372
66001247
66001903
66001532
66001221
66001190
66001146
-------66001658
66001030
66001350
66001895
66001148
66001526
66001709
66001243
66001401
66001291
66001402
66001262
66001403
66001342
66001255
--------------66001524
66001896
66001034
66001897
When ordering repair parts, always give the following information:
THIS IS A REPAIR PARTS LIST, NOT A PACKING LIST.
The model number of this gas water heater will be found on the model
rating plate located near the gas control valve.
43
•
Model number
•
Serial Number
•
Part Description
•
Part Number
REPAIR PARTS LIST
MAYTAG/STATE PART NUMBER CONVERSION KEY
MAYTAG
STATE
MAYTAG
STATE
66001010
9002404
66001372
9003095
66001011
9001609
66001399
9003083
66001012
9001608
66001400
9003156
66001013
ETC2X
66001401
9003153
66001014
ETC5X
66001402
9003152
66001015
9002401
66001403
9003154
66001020
9000734
66001404
9003157
66001021
9001584
66001405
9000736
66001025
0230120
66001515
9003453
66001027
9002411
66001524
9003626
66001029
9000281
66001525
9003627
66001030
9002444
66001526
9003628
66001034
9002445
66001527
9003629
66001035
0230141
66001528
9003630
66001041
0230224
66001530
9003685
66001046
0230124
66001532
9003687
66001047
0230123
66001533
9003688
66001052
9002059
66001538
9003493
66001068
9001453
66001540
9003495
66001105
9002769
66001617
9003527
66001146
9000369
66001638
9003443
66001148
9002565
66001654
9003690
66001168
0230209
66001657
9003693
66001169
0230212
66001658
9003694
66001172
0230225
66001659
9003697
66001174
0230247
66001660
9003698
66001177
0230260
66001700
9003917
66001190
9000358
66001707
9003909
66001221
9001271
66001708
9003717
66001243
9001422
66001709
9003716
66001247
9001773
66001755
9003971
66001255
9001957
66001758
9003916
66001259
9001976
66001818
9003930
66001262
9001993
66001881
9004274
66001291
9002508
66001895
9002113
6001294
9002511
66001896
9004277
66001295
9002512
66001897
184683-001
66001317
9002597
66001898
9004268
66001342
9002678
66001899
9002113
66001350
9002981
66001900
9001671
66001366
9003081
66001901
9002978
66001367
9003082
66001902
9004278
66001368
9003089
66001903
9004273
66001369
9003090
44
NOTES
45
NOTES
46
NOTES
47
WARRANTY
FULL ONE YEAR WARRANTY
For one year from the date of original retail purchase, any part which fails in normal home use will be repaired
or replaced free of charge.
If a leak occurs in the tank, a new water heater of the closest capacity and quality then available, will be
replaced free of charge.
The warranty of the replacement is the balance of the original water heater’s warranty.
LIMITED PARTS WARRANTY
After the first year and through the twelfth year from the date of original retail purchase, any parts which fail due
to a defect in materials or workmanship, will be replaced or repaired free of charge for the part itself, with the
owner paying all other costs, including labor, mileage and transportation.
If the water heater is subjected to commercial, institutional, industrial or non-residential use, the above
warranty coverage for parts that are proved to be defective in material or workmanship is effective for one year
from the date of the original retail purchase.
The warranty of the replacement is the balance of the original water heater’s warranty, or twelve months from
the date of the part(s) purchase, whichever comes first.
Blower fan and assembly are warranted for five years.
This warranty is limited to the original owner of the water heater.
LIMITED TANK WARRANTY AGAINST LEAKS
After the first year and through the twelfth year from the date of original retail purchase, if a leak occurs in the
tank, a new water heater of the closest capacity and quality then available, will be replaced free of charge for
the water heater, with the owner paying all other costs, including labor, mileage and transportation.
If the water heater is subjected to commercial, institutional, industrial or non-residential use, the above
warranty coverage for the tanks that are proved to be defective in material or workmanship is effective for two
years from the date of the original retail purchase.
The warranty of the replacement is the balance of the original water heater’s warranty.
Please note: The full and limited warranty applies only while this water heater is used in the United States of
America.
This warranty is limited to the original owner of the water heater.
TO OBTAIN WARRANTY SERVICE
To locate an authorized service company in your area contact the Maytag dealer from whom your appliance
was purchased; or call Maytag Customer Service at the number listed below. Should you not receive satisfactory
warranty service, please call or write:
Maytag Customer Service
P.O. Box 2370
Cleveland, TN 37320-2370
U.S.A. 1-800-788-8899
When contacting Maytag Customer Service be sure to provide the model and serial number of your appliance,
the name and address of the dealer from whom you purchased the appliance and the date of purchase.
MAYTAG WATER HEATERS ARE MANUFACTURED AND THIS WARRANTY IS PROVIDED BY A.O. SMITH
CORPORATION. MAYTAG® IS A TRADEMARK OF THE MAYTAG CORPORATION AND IS USED UNDER
LICENSE TO A.O. SMITH CORPORATION.
48