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Maytag HV640HBVITCGA - page 1
1 www.maytagwaterheaters.com PRINTED IN THE U.S.A. 1005 P ART NO. 185376-000 FOR POT ABLE W A TER HEA TING ONL Y NOT SUIT ABLE FOR SP ACE HEA TING NOT FOR USE IN MANUF ACTURED (MOBILE) HOMES POWER VENT GAS W A TER HEA TER USER’S GUIDE Series Six Model Numbers HV640YBVITCGA HV650YBVITCGA HV640HBVITCGA HV650HBVITCGA For Y our Safety AN ODORANT IS A ...
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Maytag HV640HBVITCGA - page 2
2 SAFE INST ALLA TION, USE AND SERVICE Y our safety and the safety of others is extremely important in the inst allation, 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 ...
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Maytag HV640HBVITCGA - page 3
3 SAFETY PRECAUTIONS ...
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Maytag HV640HBVITCGA - page 4
4 SAFE INST ALLA TION, USE AND SER VICE .................................................................................................................................... 2 SAFETY PRECAUTIONS ............................................................................................................................................................ ...
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Maytag HV640HBVITCGA - page 5
5 T ANK RECOVERY MINIMUM CAP ACITY INPUT R A T E GALS. VENT PIPE DIAMETER DIMENSIONS IN MODEL I N GALS. TYPE OF RA TE PER HOUR INCHES INCHES INCHES (mm) HEIGHT NUMBER ( L TRS) GAS (Btu/hr) @ 90°F RISE (mm) (mm) TO JACKET TOP HV640YBVITCGA 4 0 (151) N A TURAL 40,000 4 4 2 (51) 18 1/2 (470) 55 (1,397) HV650YBVITCGA 5 0 (189) N A TURAL 40,000 4 4 2 ( ...
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Maytag HV640HBVITCGA - page 6
6 MA TERIALS AND BASIC T OOLS NEEDED Accessories T o simplify the installation Maytag has available the inst allation parts shown below . Y ou may or may not need all of these accessories depending on your type of installation. Call Mayt ag Customer Service at 1-800-788-8899 for an authorized installer . EXP ANSION T ANKS FOR THERMAL EXP ANSION CON ...
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Maytag HV640HBVITCGA - page 7
7 TYPICAL INST ALLA TION GET T O KNOW YOUR W A TER HEA TER - GAS MODELS A V ent Pipe–Exhaust B V ent T erminal C V ent Adapter-Rubber Boot D Blower Assembly E Cold Water Inlet F Inlet Water Shut-off V alve G Union H Inlet Dip T ube J Anode** FIGURE 1. K Hot Water Outlet L Outlet Receptacle (1 15 V AC) M T emperature-Pressure Relief V alve N Flue ...
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Maytag HV640HBVITCGA - page 8
8 TYPICAL INST ALLA TION FIGURE 2. MIXING V AL VE USAGE HOTTER W A TER CAN SCALD: W ater 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 permanentl ...
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Maytag HV640HBVITCGA - page 9
9 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 3 and 4. 2. Turn “OFF” the water supply to the water heater at the w ...
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Maytag HV640HBVITCGA - page 10
10 FACTS TO CONSIDER ABOUT THE LOCA TION 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. Whe ...
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Maytag HV640HBVITCGA - page 11
11 and 12" (30.5 cm) from the top. (S tandard clearance.) If clearances stated on the heater differ from standard clearances, install water heater according to clearances stated on the heater . Adequate clearance for servicing this appliance should be considered before installation, such as changing the anodes, etc. A minimum clearance of 5&qu ...
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Maytag HV640HBVITCGA - page 12
12 Chemical vapor corrosion of the flue, blower assembly and vent system may occur if air for combustion contains certain chemical vapors. S pray can propellant s, cleaning solvents, refrigerator and air conditioner refrigerants, swimming pool chemicals, calcium and sodium chloride, waxes, bleach and process chemicals are typical compounds which ar ...
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Maytag HV640HBVITCGA - page 13
13 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 the water heater’s temperature-pressure relief valve is reached, the valve will relieve the excess pressure. The temperature-pressure relief valve is not intended for the constant relief of thermal expansion. ...
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Maytag HV640HBVITCGA - page 14
14 Figure 16 shows the typical attachment of the water piping to the water heater . The water heater is equipped with 3/4 inch NPT water connections. 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 ...
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Maytag HV640HBVITCGA - page 15
15 GAS PIPING 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 (3.5 kPa) for natural and propane gas (L.P .). The minimum inlet gas pressure shown on the rating plate is that which will permit firing at rated input. All gas piping must comply with local codes a ...
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Maytag HV640HBVITCGA - page 16
16 SEDIMENT TRAPS 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. T o trap any dirt or foreign material in the gas supply line, a drip leg (sometimes called a sediment trap) must be incorporated i ...
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Maytag HV640HBVITCGA - page 17
17 VENT CONNECTIONS TO BLOWER ASSEMBL Y Figure 15 shows the optimal placement of the 2" to 3" or 3" to 4" reducer; however , the vent can be reduced at any point in the vent system as long as the maximum vent length is not exceeded. FIGURE 21. VENTING AND INST ALLA TION Plan the layout of the vent system from the vent terminatio ...
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Maytag HV640HBVITCGA - page 18
18 The unit may be vented horizontally through a wall or vertically through the roof. Pipe runs must be adequately supported along both vertical and horizontal runs as follows: • For Schedule 40, 2" PVC, ABS, Coex Cellular Core vent pipe: Every 3 feet (0.9 m). • For Schedule 40, 3" PVC, ABS, Coex Cellular Core vent pipe: Every 3.5 fee ...
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Maytag HV640HBVITCGA - page 19
19 VENTING The vent system must terminate so that proper clearances are maintained as cited in local codes or the current edition of the Natural Gas and Propane Installation Code CAN/CSA B149.1 as follows: 1 . The exit terminals of a mechanical vent system shall be not less than 7 feet (2.13 m) above grade when located adjacent to public walkways, ...
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Maytag HV640HBVITCGA - page 20
20 FIGURE 23. This unit can vent through 2", 3" or 4" nonmetallic pipe and fittings. The vent pipe installation can be started from either the blower discharge or the termination wall. Keep in mind the total vent system (pipe and elbows) when installing the vent system, see VENTING AND INST ALLA TION AND MAXIMUM VENT LENGTHS, pages 1 ...
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Maytag HV640HBVITCGA - page 21
21 VENT PIPE PREP ARA TION 1. INITIAL PREP ARA TION A. Make sure the solvent cement you are planning to use is designed for the specific application you are attempting. B . Know the physical and chemical characteristics and limitations of the PVC and CPVC piping materials that you are about to use. C . Know the reputation of your manufacturer and t ...
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Maytag HV640HBVITCGA - page 22
22 B . Deburring Use a knife, plastic pipe deburring tool, or file to remove burrs from the end of small diameter pipe. Be sure to remove all burrs from around the inside as well as the outside of the pipe. A slight chamfer (bevel) of about 10°- 15° should be added to the end to permit easier insertion of the pipe into the end of the fitting. Fai ...
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Maytag HV640HBVITCGA - page 23
23 FOR YOUR SAFETY READ BEFORE OPERA TING W ARNING: If you do not follow these instructions exactly , a fire or explosion may result causing property damage, personal injury or loss of life. 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. ...
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Maytag HV640HBVITCGA - page 24
24 TEMPERA TURE REGULA TION HOT W A TER CAN SCALD: Water heaters are intended to produce hot water . W ater heated to a temperature that will satisfy sp ace 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 oth ...
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Maytag HV640HBVITCGA - page 25
25 FOR YOUR INFORMA TION ST ART UP CONDITIONS CONDENSA TE 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 condensate. This usually happens when: a . A new water heater is filled with cold water for the first time. b . Burning ga ...
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Maytag HV640HBVITCGA - page 26
26 SER VICE AND ADJUSTMENT VENTING SYSTEM INSPECTION At least once a year a visual inspection should be made of the venting system. Y ou should look for: 1. Obstructions which could cause improper venting. The combustion and ventilation air flow must not be obstructed. 2 . Damage or deterioration which could cause improper venting or leakage of com ...
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Maytag HV640HBVITCGA - page 27
27 ANODE ROD INSPECTION 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 ...
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Maytag HV640HBVITCGA - page 28
28 LEAKAGE CHECKPOINTS Use this guide to check a “Leaking” water heater . Many suspected “Leakers” are not leaking tanks. Often the source of the water can be found and corrected. If you are not thoroughly familiar with gas codes, your water heater , and safety practices, contact Maytag Customer Service (1-800-788-8899) to check the water h ...
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Maytag HV640HBVITCGA - page 29
29 TROUBLESHOOTING GUIDELINES TROUBLESHOOTING GUIDELINES 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. Inform the associate that this is a “Flammable V apor Ignition Resistant” Product. PROBLEM SOLUTION An open earth ground circuit t ...
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Maytag HV640HBVITCGA - page 30
30 TROUBLESHOOTING GUIDELINES 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. Inform the associate that this is a “Flammable V apor Ignition Resistant” Product. ...
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Maytag HV640HBVITCGA - page 31
31 REP AIR P ARTS LIST Now that you have purchased your gas water heater , should a need ever exist for repair parts or service, simply consult Maytag Customer Service at 1-800-788-8899 for an authorized installer on how to control this situation . Be sure to provide all pertinent facts when you call or visit. The model number of your Gas Water Hea ...
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Maytag HV640HBVITCGA - page 32
32 FULL ONE YEAR W ARRANTY 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 o ...
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