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Rheem AP13731 - page 1
Indoor W ater Heater Outdoor W ater Heater AP13731 (03/05) FOR YOUR SAFETY! — Do not store or use gasoline or other flammable vapors or liquids or other combustible materials in the vicinity of this or any other appliance. T o do so may r esult in an explosion or fir e. — WHA T TO DO IF YOU SMELL GAS ● Do not try to light any appliance. ● D ...
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Rheem AP13731 - page 2
Safety Information Safety Precautions . . . . . . . 3–6 LP Gas Models . . . . . . . . . . . 5 Installation Instructions Location of Indoor . . . . . . . . . 7 Location of Outdoor . . . . . . . . 8 W ater Connections . . . . . 10-11 Gas Supply . . . . . . . . . . . . . . 12 High Altitude . . . . . . . . . . . . 12 V enting . . . . . . . . . . . . ...
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Rheem AP13731 - page 3
Be sure to r ead and understand the entire Use and Care Manual befor e attempting to install or operate this water heater . It may save you time and money . Pay particular attention to the Safety Instructions. Failure to follow these warnings could r esult in serious bodily injury or death. Should you have problems understanding the instructions in ...
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Rheem AP13731 - page 4
Time/T emperature Relationship in Scalds W ater T emperature T ime T o Produce a Serious Burn 120°F (49°C) More than 5 minutes 125°F (52°C) 1 1 / 2 to 2 minutes 130°F (54°C) About 30 seconds 135°F (57°C) About 10 seconds 140°F (60°C) Less than 5 seconds 145°F (63°C) Less than 3 seconds 150°F (66°C) About 1 1 / 2 seconds 155°F (68°C) ...
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Rheem AP13731 - page 5
5 Both LP and natural gas have an odorant added to aid in detecting a gas leak. Some people may not physically be able to smell or r ecognize this odorant. If you are unsure or unfamiliar with the smell of LP or natural gas, ask the gas supplier . Other conditions, such as “odorant fade”, which causes the odorant to diminish in intensity , can ...
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Rheem AP13731 - page 6
6 Have the installer show you the location of the gas shut-off valve and how to shut it off if necessary . T urn off the manual shut-off valve if the water heater has been subjected to overheating, fire, flood, physical damage or if the gas supply fails to shut off. ● Read this manual entirely befor e installing or operating the water heater . ? ...
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Rheem AP13731 - page 7
Installing the (INDOOR) water heater : This water heater must be installed in accordance with these instructions, local codes, utility company requir ements, and/or in the absence of local codes, use the latest edition of the American National S tandard/National Fuel Gas Code. A copy can be purchased fr om either the American Gas Association, 400 N ...
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Rheem AP13731 - page 8
8 Installing the (OUTDOOR) water heater: This water heater must be installed in accordance with these instructions, local codes, utility company requir ements, and/or in the absence of local codes, use the latest edition of the American National S tandard/National Fuel Gas Code. A copy can be purchased fr om either the American Gas Association, 400 ...
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Rheem AP13731 - page 9
Installing the water heater: Proper operation of the water heater requir es air for combustion and ventilation. Pr ovisions for combustion and ventilation air must comply with r eferenced codes and standards. Combustion and V entilation Air (Indoor W ater Heater Only) NOTICE: If the water heater is installed in an unconfined space within a building ...
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Rheem AP13731 - page 10
10 W ater Supply Connections IMPOR T ANT : Do not apply heat to the HOT or COLD water connections. If sweat connections are used, sweat tubing to adapter before fitting adapter to the water connections on heater . Any heat applied to the water supply fittings will permanently damage the internal components of the water heater . Mounting the W ater ...
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Rheem AP13731 - page 11
Installing the water heater: Relief V alve A new pressure r elief valve, complying with the S tandard for Relief V alves and Automatic Gas Shut-Off Devices for Hot W ater Supply Systems, ANSI Z21.22/ CSA 4.4, must be installed at the hot water outlet connection of the water heater at the time of installation. Local codes shall govern the installati ...
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Rheem AP13731 - page 12
12 W ARNING: Do not attempt to convert this water heater for use with a different type of gas other than the type shown on the rating plate. Such conversion could result in hazardous operating conditions. Leak T esting The water heater and its gas connections must be leak tested at normal operating pressures before it is placed in operation. T urn ...
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Rheem AP13731 - page 13
Installing the water heater: The water heater must be installed with a R TG20002B vent adapter or a UL approved Category III S tainless S teel equivalent. V enting The installation of venting must comply with national codes, local codes, and the vent manufacturer ’ s instructions. The water heater must be vented to the outdoors as described in th ...
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Rheem AP13731 - page 14
14 V enting Thr ough Closed Spaces If the vent piping passes through a closed space, a minimum clearance of 8” (20 cm) when installed horizontally , 6” (15 cm) when installed vertically should be maintained between the vent pipe and combustibles and noncombustibles. Be sure to follow local codes. For maintenance and inspection purposes, the fol ...
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Rheem AP13731 - page 15
15 D V V E FIXED CL OS ED O P E RAB LE O P E RA B LE FIXE D CLO S ED v v B L F C B v v v X B B B A J B I H X v M K v G A The following information should be used for determining the proper location of the vent terminal for indoor and outdoor tankless water heaters. Canadian Installat ions 1 US Installati ons 2 Canadian Installat ions 1 US Installat ...
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Rheem AP13731 - page 16
16 Installing the water heater: Additional Considerations Do Not install vent terminal under any patio or deck. T o help prevent moisture from freezing on walls and under eaves, do not locate vent terminal on the side of a building with prevailing winter winds. T o help prevent water lines from freezing do not locate vent terminal on the side of a ...
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Rheem AP13731 - page 17
17 V ent Horizontal W all Thimble Installation An approved 4 inch (10 cm) V ent Horizontal W all Thimble must be used. The W all Thimble requires mechanical support from the wall sufficient to support any incidental loads on the system. If the wall is not sufficient enough to support the W all Thimble, then appropriate additional framing and/or blo ...
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Rheem AP13731 - page 18
18 Installing the water heater . V ertical V ent Installation Once the vent terminal location has been determined, make a hole through the roof and interior ceiling to accommodate the vent pipe. Complete the vent pipe installation to the water heater's vent connector fitting on the water heater vent collar outlet. Support vertical or horizonta ...
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Rheem AP13731 - page 19
19 Remote Control Installation One (1) remote control is provided with the water heater . The following are considerations for determining the location of the remote control(s): ● DO NOT install any remote control outdoors or areas were it can come in contact with water . ● Place remote control out of children’ s reach. ● The remote control ...
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Rheem AP13731 - page 20
20 Installing the Main Remote Contr ol. W ARNING: Field wiring connections and electrical grounding must comply with local codes, or in the absence of local codes, with the latest edition of the National Electrical Code, ANSI/NFP A 70, or in Canada, Canadian Electrical Code, CSA C22.1 Part 1. Remote Control Connection T erminals Gas V alve PCB 18 A ...
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Rheem AP13731 - page 21
21 Electrical Connection POWER CORD (Indoor water heaters only): ● The electric power supply requirement for this water heater is 120 V AC/60HZ, 2 Amps. ● The water heater comes with a three (3) pin power supply cord (INDOOR MODELS ONL Y). Use only a power outlet with a ground terminal. ● The installation of an electric leakage breaker is rec ...
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Rheem AP13731 - page 22
22 Installing the water heater . T ypical Installation of Indoor W ater Heater 90° Elbow 1/4" Per Foot Downward Pitch W all Thimble V ent Termination With Protective Screen T o Hot Water Faucet(s) Discharge Line (T o Suitable Drain) Relief V alve Union Drain V alve 6" (15 cm) Air Gap Manual Gas Appliance Shut-off (supplied) Sediment Tra ...
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Rheem AP13731 - page 23
23 Installing the water heater: T ypical Installation of Outdoor W ater Heater T o Hot W ater Faucet(s) Discharge Line (T o Suitable Drain) Relief V alve Union Drain V alve 6" (15 cm) Air Gap ...
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Rheem AP13731 - page 24
24 For increased energy ef ficiency , use pipe insulation. Please install the insulation, according to the illustrations above, making sure to insulate all the way to the top. Do not cover any drain or pressure relief valve(s). Do’ s ❑ Do follow all installation instructions convered in this manual. ❑ Do check inlet gas pressure to ensure tha ...
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Rheem AP13731 - page 25
Installing the water heater: 25 A. Outdoor W ater Heater Location ❑ Outdoor water heaters must be installed outdoors. ❑ Protected from freezing temperatures. B. Indoor W ater Heater Location ❑ Close to area of vent termination. ❑ Indoors and protected from freezing temperatures . C. Outdoor and Indoor W ater Heater Location ❑ Proper clear ...
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Rheem AP13731 - page 26
26 Lighting the water heater: Before operating this water heater , be sur e to read and follow the instructions on the label pictur ed below and all other labels on the water heater , as well as the warnings printed in this manual. Failur e to do so can result in unsafe operation of the water heater r esulting in property damage, personal injury , ...
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Rheem AP13731 - page 27
27 Time/T emperature Relationship in Scalds W ater T emperature T ime T o Produce a Serious Burn 120°F (49°C) More than 5 minutes 125°F (52°C) 1 1 / 2 to 2 minutes 130°F (54°C) About 30 seconds 135°F (57°C) About 10 seconds 140°F (60°C) Less than 5 seconds 145°F (63°C) Less than 3 seconds 150°F (66°C) About 1 1 / 2 seconds 155°F (68? ...
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Rheem AP13731 - page 28
28 W ater T emperature Setting… Maximum water temperature occurs while the burner is on. T o determine the water temperature, turn on a hot water faucet and place a thermometer in the water stream. W ater temperature at the faucet may vary depending on season and length of pipe from the water heater . The factory setting of the remote control tem ...
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Rheem AP13731 - page 29
29 Car e and cleaning of the water heater: Routine Preventative Maintenance Properly maintained, your water heater will provide years of dependable trouble- free service. It is recommended that a periodic inspection of the burner , relief valve, air intake filter , water filter and venting system should be made by service personnel qualified in gas ...
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Rheem AP13731 - page 30
30 V enting System Inspection The venting system of an indoor water heater should be inspected annually to ensure all of the vent sections are secure and air-tight. It is recommended that qualified service personnel familiar with Category III venting inspect the venting system. Check vent connection joint sections with a solution of soapy water to ...
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Rheem AP13731 - page 31
31 Draining the W ater Heater Freeze Pr otection Where the water heater may be exposed to freezing conditions, even for a short period of time, be sure to drain all water from the unit as instructed above. Exposure to freezing conditions can occur from down draft of venting system or from installation in areas exposed to cold air . The water heater ...
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Rheem AP13731 - page 32
32 Befor e Y ou Call For Service… T roubleshooting T ips Save time and money! Review the charts on the following pages first and you may not need to call for service. CAUTION: For your safety DO NOT attempt repair of electrical wiring, gas piping, r emote control, burners, vent connectors or other safety devices. Refer repairs to qualified servic ...
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Rheem AP13731 - page 33
Err or Code Guide When an error code is displayed: ● Close the hot water faucet, turn off the switch on the remote control. ● W ait for about 5 minutes before turning the switch on again. ● Open the hot water faucet. If the error code remains shown: ● Close the hot water faucet and turn off the switch on the remote control. ● T ake the pr ...
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Rheem AP13731 - page 34
SPARK UNIT ACS-201X A.C. 100V 0401 ON 1 2 3 4 DIP1 ON OFF 1 2 3 4 SW1 SW2 SW3 Gas V alve Assembly Heat Exchanger Thermistor Heat Exchange r Outlet Thermistor Burner Assembly (with ODS) Blower Motor Flame Rod/ Electrodes Transformer W ater Flow Solenoid Inlet Thermistor Ignitor PC Board (PCB) Burner Assembly Cover (w/ sight glass) W ater Filter 5A ( ...
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Rheem AP13731 - page 35
35 Required adjustment for up to 180°F (82°C) water temperature settings W ARNING: Refer to scald potential warnings on page 4 before making adjustment. Changing this setting is done at your own risk. DO NOT alter the #4 DIP Switch if the setting of up to 180°F (82°C) is not required. Follow the instructions below if it is determined that a set ...
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Rheem AP13731 - page 36
36 IF YOU NEED SER VICE 1. Should you have any questions about your new water heater , or if it requires adjustment, repair , or routine maintenance, it is suggested that you first contact your installer , plumbing contractor or previously agreed upon service agency . In the event the firm has moved, or is unavailable, refer to the telephone direct ...
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