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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 HRP11250P
HRN31240P HRP31250P
HRP11240P HRN11275P
HRP31240P HRN31275P
HRN11250P HRP11275P
HRN31250P HRP31275P
For Your Safety
AN ODORANT IS ADDED TO THE GAS USED
BY THIS WATER HEATER.
PRINTED IN THE U.S.A. 0505 PART NO. 66001897
www.maytagwaterheaters.com
1
184683-001
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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 ..........................................................................................................
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CUSTOMER RESPONSIBILITIES Thank You for purchasing a Maytag water heater. Properly local codes, installations shall comply with the following: installed and maintained, it should give you years of trouble In the United States: The National Fuel Gas Code ANSI Z223.1/NFPA 54. This publication is available from the free service. It is strongly suggested that this new water heater be professionally installed, contact Maytag Customer Service Canadian Standards Association, 8501 East Pleasant Valley
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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 Maytag Customer Service at 1-800-788-8899 for an authorized installer. EXPANSION TANKS FOR THERMAL EXPANSION CONDITIONS DRAIN PANS AVAILABLE IN 22” (559 mm) DIAMETER (PART NO. 66001011) FOR WATER HEATERS HAVING A DIAMETER 20” (508 AVAILABLE IN 2 GALLONS (7.6 LITERS), Part No. 66
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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 FIGURE 4. any person, see Figures
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TYPICAL INSTALLATION GET TO KNOW YOUR WATER HEATER - GAS MODELS A Vent Pipe I Drip Leg (Sediment Trap) Q Rating Plate B Blower J Inner Door R Flue Baffle C Anode K Outer door S Thermostat D Hot Water Outlet L Union T Drain Valve E Standard Pipe Fittings M Inlet Water Shut-off Valve U Pilot and Main Burner F Gas Supply N Cold Water Inlet V Flue G Manual Gas Shut-off Valve O Inlet Dip Tube W Drain Pan H Ground Joint Union P Temperature-Pressure Relief Valve * INSTALL IN ACCORDANCE WITH LOCAL CODES
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TYPICAL INSTALLATION MIXING VALVE USAGE FIGURE 8. This appliance has been design certified as complying with more likely to be permanently injured by hot water than others. American National Standard/CSA Standard for water heaters These include the elderly, children, the infirm, or physically/ and is considered suitable for: 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 Water (Potable) Heating: All models are cons
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LOCATING THE NEW WATER HEATER Installation of the water heater must be accomplished in such a Facts to Consider About the Location 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 Carefully choose an indoor location for the new water heater, advisable to install the water heater in an attic or upper floor. because the placement is a very important consideration for When such locations cannot be avoided, a suitabl
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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
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• 12” minimum from the ground, 9” ceiling overhangs, see • 24” minimum from any appliance inlet and/or outlet vents o when directly below or 45 to either side of center line, Figure 11. see Figure 13. • 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 termin
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• 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 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 communicating directly with the space in which the appliances are installed, through openings not fu
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B. ALL AIR FROM OUTDOORS: (See Figures 18, 19 and 20) they connect. The minimum short side dimension of rectangular air ducts shall not be less than 3 inches The confined space shall be provided with two permanent (76.2 mm), see Figure 20. 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 communica
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addition to using the lowest possible temperature setting that Figure 22 shows the typical attachment of the water piping to satisfies your hot water needs, a means such as a *mixing the water heater. The water heater is equipped with 3/4” NPT valve, shall be used at the hot water taps used by these people water connections for 40,000 Btuh models and 1 inch water or at the water heater. Mixing valves are available at plumbing connections for 70,000 and 75,000 Btuh models. supply or hardware sto
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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 rel
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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 dis
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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 w
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Horizontal runs must be securely supported at 3 1/2” foot Venting intervals and vertical runs supported at 5 foot intervals. 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 70,00
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75 GALLON 70,000 AND 75,000 BTU/HR MODELS ONLY - OPTIONAL 4” VENT PIPING 4” PVC, ABS or CPVC Schedule 40 vent piping: o • A wire screen to fit a 4” PCV, ABS or CPVC Schedule 40 - 45 vent cap is supplied with the water heater. o • A 4” PVC, ABS or CPVC Schedule 40 - 45 vent cap (must be supplied locally). FIGURE 32. • A 3” PVC, ABS or CPVC Schedule 40 pipe, minimum length • The water heater requires its own (separate) venting of 3” (must be supplied locally), to make vent connection at s
