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Series Ten
GAS WATER HEATER
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
HRX40YARS HRX50YART
HRX50HART
HRX40HARS
HRX40YART HRX50YQRT5
HRX40HART HRX50HQRT5
HRX40YQRT HRX50YQRT
HRX40HQRT HRX50HQRT
For Your Safety
AN ODORANT IS ADDED TO
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SAFE INSTALLATION, USE AND SERVICE Your safety and the safety of others is extremely important in the installation, use and servicing of this water heater. Many safety-related messages and instructions have been provided in this manual and on your own water heater to warn you and others of a potential injury hazard. Read and obey all safety messages and instructions throughout this manual. It is very important that the meaning of each safety message is understood by you and others who install,
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SAFETY PRECAUTIONS 3
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TABLE OF CONTENTS SAFE INSTALLATION, USE AND SERVICE ................................................................................................. 2 SAFETY PRECAUTIONS .............................................................................................................................. 3 TABLE OF CONTENTS ................................................................................................................................ 4 CUSTOMER RESPONSIBILITIES ........................
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CUSTOMER RESPONSIBILITIES local codes, installations shall comply with the following: Thank You for purchasing a Maytag water heater. Properly installed and maintained, it should give you years of trouble In the United States: The National Fuel Gas Code ANSI free service. It is strongly suggested that this new water heater be professionally installed, contact a Maytag Service Specialist Z223.1/NFPA 54. This publication is available from the at 1-800-365-0024 for recommended installers. Canadian
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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 a Maytag Service Specialist at 1-800-365-0024 for an authorized installer. EXPANSION TANKS FOR THERMAL EXPANSION CONDITIONS DRAIN PANS AVAILABLE IN 22” (559 mm) DIAMETER (PART AVAILABLE IN 2 GALLON (7.6 LITERS), Part No. 9850048 AND NO. 9001609) FOR WATER HEATERS HAVING A DIAMET
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INSTRUCTIONS FOR INSTALLATION 4. Attach a hose to the water heater Removing the Old 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 FIGURE 4. any person, see Figure
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TYPICAL INSTALLATION GET TO KNOW YOUR WATER HEATER - GAS MODELS A Vent Pipe J Drip Leg (Sediment Trap) S Flue Baffle B Draft Hood K Inner Door T Thermostat C Anode L Outer door U Drain Valve D Hot Water Outlet M Union V Pilot and Main Burner E Outlet N Inlet Water Shut-off Valve W Flue F Flexible Water Connections O Cold Water Inlet X Drain Pan G Gas Supply P Inlet Dip Tube Y Thermostat Shield (optional) H Manual Gas Shut-off Valve Q Temperature-Pressure Relief Valve Z Piezo Igniter I Ground Joi
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TYPICAL INSTALLATION MIXING VALVE USAGE FIGURE 8. This appliance has been design certified as complying with HOTTER WATER CAN SCALD: American National Standard/CSA Standard for water heaters and is considered suitable for: Water heaters are intended to produce hot water. Water heated to a temperature which will satisfy space heating, clothes Water (Potable) Heating: All models are considered suitable washing, dish washing, and other sanitizing needs can scald and permanently injure you upon con
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LOCATING THE NEW WATER HEATER • Devices that will turn off the gas supply to a gas water heater Facts to Consider About the Location while at the same time shutting off its water supply. 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
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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. 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
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top and one commencing within 12 inches (30 cm) from the Combustion Air and Ventilation for bottom of the enclosure. The openings shall communicate Appliances Located in Unconfined Spaces directly, or by ducts, with the outdoors or spaces (crawl or attic) that freely communicate with the outdoors. UNCONFINED SPACE is space whose volume is not less than 3 50 cubic feet per 1,000 Btu per hour (4.8 m per kW) of the aggregate input rating of all appliances installed in that space. Rooms communicati
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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 on page 9 and Figure 15 below. 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 manufacturer’s instructions for installation of the valves. Before changing the factory se
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• Look at the top of the water heater. The cold water inlet is marked “COLD”. Put two or three turns of teflon tape around the threaded end of the threaded-to-sweat coupling and around both ends of the 3/4” NPT threaded nipple. Using standard pipe fittings, 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
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If replaced, the valve must meet the requirements of local The Discharge Pipe: codes, but not less than a combination temperature and pressure relief valve certified as indicated in the above • Shall not be smaller in size than the outlet pipe size of the paragraph. valve, or have any reducing couplings or other restrictions. The valve must be marked with a maximum set pressure not to • Shall not be plugged or blocked. exceed the marked hydrostatic working pressure of the water heater (150 psi =
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the right (clockwise). The drain valve is on the lower front of Specialist at 1-800-365-0024 or gas supplier to aid you in the water heater. determining the proper venting for your water heater from the • Open the cold water supply valve to the water heater. vent tables in the current edition of the National Fuel Gas Code NOTE: The cold water supply valve must be left open when ANSI Z223.1/NFPA 54. the water heater is in use. Periodically check the venting system for signs of obstruction • To i
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There must be a minimum of 6 inches (153 mm) clearance plate is for the purpose of input adjustment. If the gas control between single wall vent pipe and any combustible material. valve is subjected to pressures exceeding 1/2 pound per square Fill and seal any clearance between single wall vent pipe and inch (3.5kPa), the damage to the gas control valve could result combustible material with mortar mix, cement, or other in a fire or explosion from leaking gas. noncombustible substance. For othe
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Contaminants in the gas lines may cause improper operation 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,
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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 has a pilot which must be lighted by hand. • If you cannot reach your gas supplier, call the fire When lighting the pilot, follow these instructions exactly. department. C. Use only your
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installation of the valves. Before changing the factory setting Temperature Regulation on the thermostat, read the Temperature Regulation section in this manual, see Figures 22 and 23. Due to the nature of the typical gas water heater, the water temperature in certain situations may vary up to 30F° (16.7 C°) Never allow small children to use a hot water tap, or to draw higher or lower at the point of use such as, bathtubs, showers, their own bath water. Never leave a child or handicapped perso
