Maytag HRX40YQRT, HRX40HART, HRX40YART, HRX50YART, HRX40HARS User Manual

...

Series Ten

GAS W A TER HEA TER

USER’S GUIDE

FOR POTABLE WATER HEATING ONLY

NOT SUITABLE FOR SPACE HEATING

NOT FOR USE IN

MANUFACTURED (MOBILE) HOMES

C3 Technology® Gas Water Heaters meet the new ANSI Z21.10.1 standard that deals with the accidental or unintended ignition of flammable vapors, such as those emitted by gasoline.

Model Numbers

HRX40Y ARS

HRX40HARS

HRX40Y ART HRX40HART HRX40YQRT HRX40HQRT

HRX50Y ART

HRX50HART HRX50YQRT5 HRX50HQRT5

HRX50YQRT

HRX50HQRT

For Your Safety

AN ODORANT IS ADDED TO THE GAS USED

BY THIS WA TER HEA TER.

PRINTED IN THE U.S.A 0405 PART NO. 184388-002

66001907

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 indicates an imminently

DANGER

W ARNING

CAUTION

hazardous situation which, if not avoided, could result in death or injury.

WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or injury.

CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

CAUTION used without the safety alert

CAUTION

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.

symbol indicates a potentially hazardous situation which, if not avoided, could result in property damage.

IMPORTANT DEFINITIONS

• Maytag Service Specialist: A Maytag Service Specialist has the 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 Specialist 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.

SAFETY PRECAUTIONS

TABLE OF CONTENTS

SAFE INST ALLA TION, USE AND SERVICE ................................................................................................. 2

SAFETY PRECAUTIONS.............................................................................................................................. 3

TABLE OF CONTENTS ................................................................................................................................ 4

CUSTOMER RESPONSIBILITIES ................................................................................................................ 5

PRODUCT SPECIFICA TIONS...................................................................................................................... 5

ACCESSORIES AND TOOLS NEEDED...................................................................................................... 6

Accessories ............................................................................................................................................................ 6

Tools ....................................................................................................................................................................... 6

INSTRUCTIONS FOR INST ALLA TION.......................................................................................................... 7

Removing the Old Water Heater ..............................................................................................................................7

TYPICAL INST ALLA TION............................................................................................................................... 8

Get to Know Your Water Heater .............................................................................................................................. 8

Mixing Valve Usage .................................................................................................................................................9

LOCA TING THE NEW HEATER.................................................................................................................. 10

Facts to Consider About the Location ...............................................................................................................10-11

Insulation blankets ................................................................................................................................................ 11

Combustion Air and V entilation Appliances

in Unconfined Spaces............................................................................................................................................ 12

Combustion Air and V entilation Appliances

in Confined Spaces .......................................................................................................................................... 12-13

Water Piping .................................................................................................................................................... 13-14

T & P and Pipe Insulation................................................................................................................................... 14

T emperature Pressure Relief V alve.................................................................................................................... 14-15

Filling the Water Heater.................................................................................................................................... 15,16

Venting............................................................................................................................................................. 16,17

Gas Piping ....................................................................................................................................................... 17,18

Sediment Trap....................................................................................................................................................... 18

OPERATING INSTRUCTIONS ................................................................................................................ 19-20

Lighting & Operating Label .................................................................................................................................... 19

T emperature Regulation ......................................................................................................................................... 20

SERVICE AND MAINTENANCE .............................................................................................................. 21-23

T ank (Sediment) Cleaning...................................................................................................................................... 21

Venting System Inspection.................................................................................................................................... 21

Burner Inspection .................................................................................................................................................. 21

Burner Cleaning................................................................................................................................................ 21-22

Housekeeping ....................................................................................................................................................... 22

Anode Rod Inspection ........................................................................................................................................... 22

T emperature-Pressure Relief V alve Operation ........................................................................................................ 22

Draining............................................................................................................................................................ 22-23

Drain V alve Washer Replacement.......................................................................................................................... 23

Service .................................................................................................................................................................. 23

TROUBLESHOOTING ............................................................................................................................23-26

Start Up Conditions ............................................................................................................................................... 23

Draft Hood Operation .................................................................................................................................... 23

Condensation........................................................................................................................................... 23-24

Smoke / Odor ............................................................................................................................................... 24

Thermal Expansion ....................................................................................................................................... 24

Strange Sounds............................................................................................................................................ 24

Operational Conditions ..................................................................................................................................... 24-25

Smelly Odor ................................................................................................................................................. 24

“AIR” In Hot Water Faucets .......................................................................................................................... 24

High Temperature Shut Off System............................................................................................................... 25

Leakage Checkpoints............................................................................................................................................ 25

TROUBLESHOOTING GUIDE .................................................................................................................... 26

REP AIR PARTS LIST .............................................................................................................................. 27-29

NOTES....................................................................................................................................................30-31

WARRANTY ................................................................................................................................................ 32

CUSTOMER RESPONSIBILITIES

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 a Maytag Service Specialist

at 1-800-365-0024 for recommended installers.

Abbreviations Found In This Instruction Manual:

• 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 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).

• 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.

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 A TTEMPTING

TO INSTALL OR OPERA TE THE WA TER HEA TER.

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.

• If after reading this manual you have any questions or do not understand any portion of the instructions, call a Maytag

Service Specialist at 1-800-365-0024 for an authorized servicer.

• 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.

Examine the location to ensure the water heater complies with the Facts to Consider About the Location section in this manual.

• 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.

• 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.

• 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

TANK RECOVERY MINIMUM DIMENSIONS

CAPACITY TYPE RATE GALS. VENT PIPE DIAMETER IN INCHES (mm)

IN GALS O F BT U PER HOUR INCHES INCHES HEIGHT TOP OF

MODEL NUMBER (LTRS) GAS RATE @ 90°F RISE (mm) (mm) DRAFT HOOD

HRX40YARS 40 (151) NATURAL 40,000 41.0 3” (76) or 4” (102) 20” (508) 51 5/8” (1,311) HRX40HARS 40 (151) PROP ANE 37,000 41.0 3” (76) or 4” (102) 20” (508) 51 5/8” (1,311) HRX40Y ART 38 (144) NATURAL 40,000 39.0 3” (76) or 4” (102) 18 1/2” (470) 57 5/8” (1,464) HRX40HART 38 (144) PROPANE 37,000 39.0 3” (76) or 4” (102) 18 1/2” (470) 57 5/8” (1,464) HRX40YQRT 38 (144) N ATURAL 50,000 48.0 4” (102) 20 1/4” (514) 58 1/2” (1,486) HRX40HQRT 38 (144) PROP ANE 47,000 48.0 4” (102) 20 1/4” (514) 58 1/2” (1,486) HRX50Y ART 50 (189) NATURAL 40,000 41.0 3” (76) or 4” (102) 20 1/4” (514) 60 7/8” (1,546)

HRX50HART 50 (189) PROPANE 37,000 39.0 3” (76) or 4” (102) 20 1/4” (514) 60 7/8” (1,546) HRX50YQRT5 50 (189) NATURAL 65,000 67.0 4” (102) 22” (559) 65” (1,651) HRX50HQRT5 50 (189) PROPANE 55,000 57.0 4” (102) 22” (559) 65” (1,651)

HRX50YQRT 48 (182) N ATURAL 50,000 51.0 4” (102) 20 1/4" (514) 60 7/8” (1,546)

HRX50HQRT 48 (182) PROP ANE 45,000 51.0 4” (102) 20 1/4" (514) 60 7/8” (1,546)

* Adding suffix “D” denotes high altitude. High altitude models have a B.T.U./Recovery Rate 10% less than shown.

ACCESSORIES AND TOOLS NEEDED

Accessories

T o simplify the inst allation Maytag has available the installation p art s shown below. You may or may not need all of these accessories depending on your type of installation. Call a Maytag Service Specialist at 1-800-365-0024 for an authorized installer.

EXPANSION TANKS FOR THERMAL EXPANSION CONDITIONS AVAILABLE IN 2 GALLON (7.6 LITERS), Part No. 9850048 AND 5 GALLON (18.9 LITERS), Part No. 9850049 CAPACITY.

Tools

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

DRILL

SLOT-HEAD SCREWDRIVER

PHILLIPS SCREWDRIVER

TIN SNIPS

DRAIN PANS AVAILABLE IN 22” (559 mm) DIAMETER (PART NO. 9001609) FOR WATER HEATERS HAVING A DIAMETER 20” (508 mm) OR LESS, 24” (610mm) DIAMETER (PART NO. 9002769) FOR WA TER HEATERS HA VING A DIAMETER 22” (559 mm) OR LESS AND 28” (711 mm) DIAMETER (PART NO. 9001608) FOR WATER HEATERS HAVING A DIAMETER 26” (660 mm) OR LESS.

Additional Tools Needed When Sweat Soldering

• Tubing Cutters or Hacksaw

• Propane Tank

• Soft Solder

• Solder Flux

• Emery Cloth

• Wire Brushes

PROPAN E

TUBING CUTTER

TORCH

ROLL OF TEFLON

TAPE (USE ONL Y ON

WA TER HEA TER

CONNECTIONS)

GARDEN HOSE

6 FOOT TA PE

PIPE DOPE

(SQUEEZE TUBE)

USE FOR WA TER AND GAS

CONNECTIONS

PIPE WRENCH

3/4” (19 mm) WIRE BRUSH

1/2” (13 mm) WIRE BRUSH

HACKSAW

ROLL OF

EMERY CLOTH

ROLL OF LEAD-FREE

SOFT SOLDER

SOLDER

FLUX

INSTRUCTIONS FOR INSTALLATION

Removing the Old Water Heater

FIGURE 1.

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.

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 4.

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.

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 2.

FIGURE 3.

FIGURE 5.

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 temperate-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 6.

TYPICAL INSTALLATION

GET TO KNOW YOUR WATER HEATER - GAS MODELS

A Vent Pipe B Draft Hood C Anode D Hot Water Outlet

E Outlet

F Flexible Water Connections G Gas Supply H Manual Gas Shut-off Valve

I Ground Joint Union

* INSTALL IN ACCORDANCE

WITH LOCAL CODES.

* DRIP LEG AS REQUIRED

BY LOCAL CODES.

TO VENT TERMINATION

ON ROOF

J Drip Leg (Sediment T rap)

K Inner Door

L Outer door

M Union

N Inlet Water Shut-off V alve O Cold Water Inlet P Inlet Dip Tube Q Temperature-Pressure Relief Valve R Rating Plate

S Flue Baffle

T Thermostat U Drain Valve V Pilot and Main Burner

W Flue

X Drain Pan

Y Thermostat Shield (optional)

Z Piezo Igniter

AA Air Intake Screen

(T) THERMOSTA T

* ALL PIPING MA TERIALS TO BE

SUPPLIED BY CUSTOMERS.

** CLOSED WATER SYSTEMS ARE THOSE WITH

BACK FLOW PREVENTION DEVICES INSTALLED IN THE INLET WATER SERVICE LINE.

THERMOSTAT

SHIELD

(OPTIONAL)

(V) PILOT & MAIN BURNER

FIGURE 7.

TYPICAL INSTALLATION

MIXING V ALVE 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:

Water (Potable) Heating: All models are considered suitable for water (potable) heating.

HOTTER WA TER 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 a plumbing supply distributor, see Figure 8. Valves for reducing point of use, temperature by mixing cold and hot water are also available. Consult a Maytag Service Specialist at 1-800-365-0024. 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 Figures 22 and 23 on page 20.

LOCATING THE NEW WATER HEATER

Facts to Consider About the Location

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:

• Select a location indoors as close as practical to the gas vent or chimney to which the water heater vent is going to be connected, and as centralized with the water piping system as possible.

• Selected location must provide adequate clearances for servicing and proper operation of the water heater.

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 distributor. 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.

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:

• Devices that will turn off the gas supply to a gas water heater while at the same time shutting off its water supply.

INST ALLATIONS 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. Even though this water heater is a flammable vapors ignition resistant water heater and is designed to reduce the chances of flammable vapors being ignited, gasoline and other flammable substances should never be stored or used in the same vicinity or area containing a gas water heater or other open flame or spark producing appliance.

Also, the water heater must be located and/or protected so it is not subject to physical damage by a moving vehicle.

• Sensors mounted in the drain pan that trigger an alarm or turn off the incoming water to the water heater when leakage is detected.

• 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.

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.

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