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Rheem Professional Classic Plus Series: Heavy Duty Ultra Low NOx Atmospheric Use & Care Manual

1. Y BCDEF An open earth ground circuit to the 1 Check that the earth ground connection is properly connected o O O O ignition system 2 Check that the ground conductor on the water heater is properly connected Y BCDEF Wiring error or a high resistance to 1 Check proper connection of line neutral and hot wires 00 0920 earth ground 2 Check that the water heater is securely connected to earth ground Y BCDEF Pressure switch remained closed lon 1 Verify that the wiring to the pressure switch es is correct eoeooo d m 2 eseonds after the call for 2 Replace the pressure switch es VY BCDEF Pressure switch remained opened lon 1 Verify that the wiring to the pressure switch es is correct POS a aen i pese combus 2 Verify that the wiring to the pressure switch es is connected ee correctly 3 Check the vent and or combustion air inlet systems for ob structions Y BCDEF Error in the hot surface ignitor circuit 1 Check that all wiring is correct and secure E A NM 2 Replace hot surface ignitor Y BCDEF System in lockout 1 Gas supply is off or too low to operate Turn on the gas supply udi d ea and or increase the inlet gas supply pressure 2 Hot surface ignitor not positioned correctly 3 Low voltage to the water heater Increase supply voltage to rated voltage 4 Electric polarity to unit is incorrect test and correct 5 Check the vent and or the combustio
2. INTELLI VENT ELECTRONIC CONTROL 2i o 4 WIRE HARNESS THAT RUNS FROM BLOWER ASSEMBLY 1 TO INTELLIVENT CONTROL GAS VALVE 1 FAISCEAU DE CABLAGE ENTRE L ENSEMBLE DU SOUFFLEUR ET LA INTELLI VENT DE LA SOUPAPE DE CONTR LE DU GAZ ANY REPLACEMENT IGNITOR CABLE MUST BE RATED AT 250 C TOUT CABLE D ALLUMAGE DE REMPLACEMENT DOIT ETRE ETALONNE A 250 C The water heater must be electrically grounded in accordance with local codes or in the absence of local codes in accordance with latest edition of the National Electric Code ANSI NFPA No 70 in US and for Canada the Canadian Electrical Code CSA C22 1 Refer to the figures below for water heater internal wiring SCHEMATIC DIAGRAM SCHEMA DE CABLAGE lt 120 VAC gt ON OFF SWITCH CONTACTEUR MARCHE ARRET IGNITER ALLUMEUR FLAMMABLE VAPOR SENSOR D TECTEUR DE VAPEUR INFLAMMABLE FLAME SENSOR CAPTEUR DE FLAMME PRESSURE SWNO CONTACTEUR D PRESSION GAS VALVE SOUPAPE DE GAZ INTELLI VENT ELECTRONIC CONTROL CONTROLE LECTRONIQE INTELLI VENT BK BLACK NOIR BL BLUE BLEU G GREEN VERT R RED ROUGE W WHITE BLANC Y YELLOW JAUNE NOTE IF ANY OF THE ORIGINAL WIRE SUPPLIED WITH THE APPLIANCE MUST BE REPLACED IT MUST BE REPLACED WITH A 18 GA 600 V 105 C WIRE y REMARQUE SI UNE PARTIE QUELCONQUE DU CABLAGE ORIGINAL H FOURNI AVEC L APPAREIL DOIT ETRE REMPLACEE ELLE DOIT ETRE REMPLACEE AVEC UN FIL DE CALI
3. 19 Operating the Water Heater ACAUTION Hydrogen gas can be produced in a hot water system served by this water heater that has not been used for a long period of time generally two weeks or more HYDROGEN GAS IS EXTREMELY FLAMMABLE To dissipate such gas and to reduce risk of injury it is recommended that the hot water faucet be opened for several minutes at the kitchen sink before using any electrical appliance connected to the hot water system If hydrogen is present there will be an unusual sound such as air escaping through the pipe as the water begins to flow Do not smoke or use an open flame near the faucet at the time it is open Safety Precautions A DO tum off manual gas shut off valve if water heater E DO NOT store or use gasoline or other flammable has been subjected to over heating fire flood physical damage or if the gas supply fails to shut off B DO NOT turn on water heater unless it is completely filled with water DO NOT turn on water heater if cold water supply vapours and liquids such as adhesives or paint thinner in vicinity of this or any other appliance If such flammables must be used open doors and windows for ventilation and all gas burning appliances in the vicinity should be shut off including their pilot burners to avoid vapours lighting shut off valve is closed D DO NOT allow combustible materials such as newspaper rags or mops to accumulate near water heater
4. Once the control verifies the vent vacuum switch is open the control will energize the blower motor for the pre purge sequence approximately 5 seconds The control will verify the vent vacuum switch has closed ensuring that the blower is functioning properly and that the venting system is not blocked The control will then proceed through a sequence of self diagnostics before initiating a trial for ignition During the trial for ignition the hot surface ignitor will warm up Once the hot surface ignitor warms up the main gas valve will open allowing gas to flow to the main burner Once the main burner ignites the control will verify that the burner flame is present through the flame sense circuit The hot surface ignitor will then turn off The main burner will remain lit throughout the heat cycle until the water temperature setting is reached Once the water temperature setting is reached the control will close the main gas valve which will extinguish the main burner flames The blower motor will stay energized for an additional 5 seconds after the control verifies that the burner flame is extinguished in order to clear combustion gases from the water heater After the post purge sequence the control will de energize the blower motor and go into a stand by mode awaiting the next call for heat This water heater is equipped with a flammable vapour sensor that is monitored continuously by the electronic
5. ADANGER Households with small children disabled or elderly persons may require a 120 F or lower gas control thermostat setting to prevent contact with HOT water Maximum water temperatures occur just after the burner has shut off To find water temperature being delivered turn on a hot water faucet and place a thermometer in the water stream and read the thermometer See page 20 and 21 for more details The temperature of the water in the heater can be regulated by setting the temperature dial on the front of the Combination Gas Control thermostat To comply with safety regulations the Combination Gas Control thermostat was set at its lowest setting before the water heater was shipped from the factory The illustration on the following page details the approximate water temperature for each LED indicator of the Combination Gas Control thermostat Thermostat Water Temperature Details VACATION 6666060607 COOLER e HOTTER A DANGER Hotter water increases the potential for Hot Water SCALDS Temperature Setting for Display Burns on Adult Skin 160 F Thermostat VABC WARM approx 70 F 21 C 00000 V approx 120 F 49 C o0oeoo0 More than 5 minutes A approx 130 F 54 C oooeoo About 30 seconds B approx 140 F 60 C ooooeo Less than 5 seconds C approx 150 F 66 C 200000 e About 1 1 2 seconds C Flashing approx
6. Pressure Testing the Gas Supply System The water heater and its manual gas shut off valve must be disconnected from the gas supply piping system during any pressure testing of that system at pressures in excess of 3 8 psi 10 5 w c for natural gas High Altitude This water heater is certified for installations up to 8 500 feet above sea level The water heater must be isolated from the gas piping system by closing the manual gas shut off valve during any pressure testing of the gas supply piping at pressures equal to or less than 3 8 psi 10 5 w c for natural gas AA WARNING Installations above 8 500 feet are not authorized and may result in improper and inefficient operation of the appliance producing carbon monoxide gas in excess of acceptable limits which could result in serious injury or death The water heater must be installed with the factory supplied draft hood in place ADANGER Failure to install the draft hood and properly vent the water heater to the outdoors as outlined in the Venting section of this manual will result in unsafe operation of the water heater causing bodily injury explosion fire or death To avoid the risk of fire explosion or asphyxiation from carbon monoxide NEVER operate the water heater unless it is properly vented and has adequate air supply for proper operation as outlined in the Venting Section of this manual AWARNING If local codes require external applicati
7. flammable vapor sensor DON T operate the water heater if the sight glass or burner access door grommet is damaged or broken Burner Access Door Grommet Sight Glass Installation Checklist A Water Heater Location LI Close to area of vent U Indoors and protected from freezing temperatures L Proper clearance from combustible surfaces observed and water heater not installed on carpeted floor U Sufficient fresh air supply for proper operation of water heater Air supply free of corrosive elements and flammable vapors L Provisions made to protect area from water damage B Water Supply C Water heater completely filled with water U Air purged from water heater and piping C Gas Supply L Gas line equipped with shut off valve union and sediment trap L Approved pipe joint compound used D Relief Valve L Temperature and Pressure Relief Valve properly installed and discharge line run to open drain E Venting U Flue baffle properly hung in top of heater s flue L Draft hood properly installed L Vent connector s pitched upward to chimney 4 per foot of length minimum F Wiring L Correct power supply 120 VAC Electrical connections tight C Catch pan installed LI Sufficient room to service the water heater L Combustible materials such as clothing cleaning materials rags etc clear of the base of the h
8. 160 F 71 C 00000 e About 1 2 seconds NW 2 c D E F 6666665 COOLER e HOTTER A DANGER Hotter water increases the potential for Hot Water SCALDS Temperature Setting for Display Burns on Adult Skin 180 F Thermostat CDEF vB V approx 120 F 49 C e00000 More than 5 minutes B approx 130 F 54 C eeoooo About 30 seconds C approx 140 F 60 C Ooeoooo Less than 5 seconds D approx 150 F 66 C O00 000 About 1 1 2 seconds E approx 160 F 71 C 000e 00 About 1 2 seconds F approx 170 F 77 C ooooeo F approx 180 F 82 C Ooo0ooe ADANGER LIQUEFIED PETROLEUM LP AND NATURAL GAS MODELS IMPORTANT SAFETY INFORMATION READ ALL INSTRUCTIONS BEFORE USING 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 recognize 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 also hide or camouflage a gas leak Water heaters utilizing LP gas are different from natural gas models A natural gas water heater will not function safely on LP gas and vice versa No attempt should ever be made to convert the water heater from natural gas to LP gas To avoid possible equipment damage
9. F 49 C Oe 0000 More than 5 minutes A approx 130 F 54 C OOoeooo About 30 seconds B approx 140 F 60 C OOOoOe 00 Less than 5 seconds C approx 150 F 66 C OOoooeo About 1 1 2 seconds C Flashing approx 160 F 71 C Ooooooe About 1 2 seconds Time Temperature Relationship in Scalds Water Temperature Time To Produce a Serious Burn D 120 F 49 C More than 5 minutes 125 F 52 C 1 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 seconds 155 F 68 C About 1 second Table courtesy of Shriners Burn Institute 21 Operating the Water Heater 22 Temperature Setting Display Burns on Adult Skin 5 66666z COOLER amp wanNING VBCDEF V approx 120 F 49 C eooooo More than 5 minutes B approx 130 F 54 C eeoooo About 30 seconds C approx 140 F 60 C oeoooo Less than 5 seconds D approx 150 F 66 C 00e 000 About 1 1 2 seconds E approx 160 F 71 C oooeoo About 1 2 seconds F approx 170 F 77 C ooooeo F approx 180 F 82 C oooooe Sequence of Operation During initial start up or a call for heat the control will verify the vent vacuum switch is open
10. air for combustion and ventilation See the Combustion and Ventilation Air information in the Installing The Water Heater section of this manual Contact a qualified service technician to purge the air from the gas line Blocked Exhaust Contact a qualified service technician to evaluate vent pipe for blockage Pressure Switch Make sure the pressure switch hose is not kinked Wire Connection s not fully secured Contact a qualified service technician to confirm wire connections Combustion Shut off Device tripped Combustion shut off device should be inspected by a qualified service technician Gas Control Problem Main burner does not Gas Controls Thermostat s lit Energy shutoff device open Contact a qualified service technician The combination gas control thermostat should be stay replaced by a qualified service technician Combustion Shutoff Device Tripped The combustion shutoff device should be inspected by a qualified service technician ACAUTION For your safety DO NOT attempt repair of gas piping combination gas control thermostat burners vent connectors or other safety devices Refer repairs to qualified service personnel ACAUTION Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and dangerous operation VERIFY PROPER OPERATION AFTER SERVICING 25 Before You Call For Service Troubleshooting Tips Save tim
11. family and pets leave also Leave the doors open for ventilation and contact the gas supplier a qualified service agency or the fire department Stay away from the house or building until the service call has been made the leak is corrected and a qualified agency has determined the area to be safe AWARNING For your safety the information in this manual must be followed to minimize the risk of fire or explosion electric shock or to prevent property damage personal injury or loss of life FOR INSTALLATIONS IN THE STATE OF CALIFORNIA California Law requires that residential water heaters must be braced anchored or strapped to resist falling or horizontal displacement due to earthquake motions For residential water heaters up to 52 gallon capacity a brochure with generic earthquake bracing instructions can be obtained from Office of the State Architect 1102 Q Street Suite 5100 Sacramento CA 95814 or you may call 916 445 8100 or ask a water heater dealer However applicable local codes shall govern installation For residential water heaters of a capacity greater than 52 gallons consult the local building jurisdiction for acceptable bracing procedures SAFETY PRECAUTIONS Have the installer show you the location of the gas shut off valve and how to shut it off if necessary Turn off the manual shut off valve if the water heater has been subjected to overheating fire flood physical damage or if the gas supply fai
12. personal injury or fire do not connect the water heater to a fuel type not in accordance with the unit data plate LP for LP units Natural gas for natural gas units These units are not certified for any other fuel type LP appliances should not be installed below grade for example in a basement if such installation is prohibited by federal state and or local laws rules regulations or customs LP gas must be used with great caution It is heavier than air and will collect first in lower areas making it hard to detect at nose level Before attempting to light the water heater make sure to look and smell for gas leaks Use a soapy solution to check all gas fittings and connections Bubbling at a connection indicates a leak that must be corrected When smelling to detect a gas leak be sure to sniff near the floor also Gas detectors are recommended in LP amp natural gas applications and their installation should be in accordance with the detector manufacturer s recommendations and or local laws rules regulations or customs It is recommended that more than one method such as soapy solution gas detectors etc be used to detect leaks in gas applications A DANGER If a gas leak is present or suspected DO NOT attempt to find the cause yourself DO NOT try to light any appliance DO NOT touch any electrical switch DO NOT use any phone in your building Leave the house immediately and make sure your
13. water heater 16 DO DO check inlet gas pressure to ensure that it is within the range specified on the rating plate DO provide adequate air for combustion and ventilation as discussed in the Use and Care Manual and the National Fuel Gas Code DO maintain proper clearances to combustibles as specified on the rating plate DO ensure that the venting system complies with the guidelines found in the Use and Care Manual and National Fuel Gas Code DO contact a qualified service technician if the hot surface ignitor or main burner will not stay lit The burner chamber is designed to be sealed utilizing a gasket During Installation of this water heater DON T DON T block or restrict the flammable vapor sensor located around the lower portion of the water heater jacket DON T block or restrict Combustion Air Inlet Openings located around the outer door DON T remove the Burner Access Door unless absolutely necessary This should only be done by a qualified service technician A new burner access door gasket must be installed on any burner access door that has been removed DON T install this water heater where standing water may occur The base of the water heater is meant to be mounted on a dry surface DON T allow cleaners solvents or other like materials to come in contact with the flammable vapor sensor DON T allow cleaner solvents or other materials to come in contact with the
14. will be at the top of the tank closest to the outlet pipe delivering hot water to the home Stacking can cause this top layer of water to be hotter than the water toward the bottom of the tank near the combination gas control thermostat Therefore always remember to test the water temperature with your hand before use and remember that hotter water increases the risk of scald injury Also always supervise young children or others who are incapacitated The combination gas control thermostat is constructed with a built in safety shutoff device designed to shut off the gas supply to the burner if the main burner is extinguished for any reason The combination gas control thermostat is also equipped with a gas shutoff device that will shut off the gas supply to the burner if the water heater exceeds normal operating temperatures Refer to the Before You Call For Service section of this manual or contact your dealer A WARNING Should overheating occur or the gas supply fail to shut off turn off the manual gas shutoff valve to the appliance If the water heater has been subjected to fire flood or physical damage turn off the manual gas shutoff valve and do not operate the water heater again until is has been checked by a qualified service technician VACATION Wane 600000 COOLER e e HOTTER Burns on Adult Skin HoT WARM approx 70 F 21 C eooooo V approx 120
15. 4 Check Valve with 1 8 Hole 3 4 Shut Off Valve Typ amp 3 4 cold water supply gt Hot water to space heater IR Hot water coil cil valve internal in pump All bronze pump NRI Air bleed valve Wate Sample Tap 3 4 HWS amp HWR To HVAC Unit FAN ON OFF HEAT COOL Air Handler T L Vacuum Relief Valve Not Supplied ES Electronically controlled pump timer Activates every 6 hours for 60 seconds Wire to bronze pump If required install per local codes and valve manufacturers instructions L6 Air Gap SS Lighting the water heater Before operating this water heater be sure to read and follow the instructions on the label pictured below and all other labels on the water heater as well as the warnings printed in this manual Failure to do so can result in unsafe operation of the water heater resulting in property damage personal injury or death Should you have any problems reading or following the instructions in this manual STOP and get help from a qualified person SS FOR YOUR SAFETY READ BEFORE OPERATING A WARNING If you do not follow these instructions and the Use amp Care Manual 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 auto matically lights the burner Do NOT try to light t
16. ATURE SETTING Safety and energy conservation are factors to be considered when selecting the water temperature setting of a water heater s gas control Water temperatures above 125 F can cause severe burns or death from scalding Be sure to read and follow the warnings outlined on the label pictured below This label is also located on the water heater Water temperature over 125 F can cause severe burns instantly or death from scalds Children disabled and elderly are at highest risk of being scalded See instruction manual before setting temperature at water heater Feel water before bathing or showering Temperature limiting valves are available see manual Time Temperature Relationship in Scalds Water Temperature Time To Produce a Serious Burn 120 F More than 5 minutes 125 F 1 to 2 minutes 130 F About 30 seconds 135 F About 10 seconds 140 F Less than 5 seconds 145 F Less than 3 seconds 150 F About 1 2 seconds 155 F About 1 second Table courtesy of Shriners Burn Institute NOTICE Mixing valves are available for reducing point of use water temperature by mixing hot and cold water in branch water lines Contact a licensed plumber or the local plumbing authority for further information AXDANGER Hotter water increases the potential for Hot Water SCALDS The chart shown above may be used as a guide in determining the proper water temperature for your home
17. AWARNING This water heater is not suitable Use amp Care Manual for use in manufactured mobile homes With Installation Instructions for the Installer Compliant with South Coast Air Quality Management District Rule 1146 14 ng J NOx Emissions Low NOx Emissions Gas Water Heaters 75 and 98 Gallon FVIR Certified The purpose of this manual is twofold one to provide the installer with the basic directions and recommendations for the proper installation and adjustment of the water heater and two for the owner operator to explain the features operation safety precautions maintenance and troubleshooting of the water heater This manual also includes a parts list It is imperative that all persons who are expected to install operate or adjust this water heater read the instructions carefully so they may understand how to perform these operations If you do not understand these instructions or any terms within it seek professional advice Any questions regarding the operation maintenance service or warranty of this water heater should be directed to the seller from whom it was purchased If additional information is required refer to the section on If you need service Do not destroy this manual Please read carefully and keep in a safe place for future reference Recognize this symbol as an indication of Important Safety Information A Sitters Proposition 65 Warning This product contains chemicals known to the Stat
18. BRE 18 600 VCA 105 C 120V 50 60 Hz LESS THAN 5 AMPS CAUTION Wiring errors can cause improper and dangerous operation VERIFY PROPER OPERATION AFTER SERVICING Hot and Cold Pipe Insulation Installation Typical vertical piping arrangement Typical horizontal piping arrangement For increased energy efficiency some to the illustrations above that best meets water heaters have been supplied with your requirements two 24 sections of pipe insulation Please install the insulation according Temperature amp Pressure Relief Valve T amp P Insulation Installation For increased energy efficiency this water heater has been supplied with a 2 3 8 section of T amp P insulation Please install the insulation as shown below Typical Side Connect T amp P Arrangement Typical Top Connect T amp P Arrangement Slip the insulation cover over the T amp P Ensure the T amp P Valve opening is not Valve through the center hole and align obstructed by the insulation the hole in the side with the opening of the T amp P Valve Heat Traps For increased energy efficiency some These heat traps may require a minimum water heaters have been supplied with heat of one 1 90 elbow and may require an traps for installation in the hot outlet line additional 90 elbow or a 3 4 coupling and cold water inlet line depending on your installation needs See Illustration of nipples and heat traps on page 31 15 Installing the
19. DANGER Hotter water increases the Potential for Hot Water SCALDS Households with small children disabled or elderly persons may require a 120 F 49 C or lower combination gas control thermostat setting to prevent contact with unsafe water temperatures 20 NOTICE Flammable vapours can be drawn by air currents from surrounding areas to the water heater F If there is any difficulty in understanding or following the Operating Instructions or the Care and Cleaning section it is recommended that a qualified person or serviceman perform the work Operating Procedure This water heater is equipped with a hot surface ignitor to light the main burner There is no pilot light to be lit but on initial start up it is recommended that the outer door be removed leave inner door in place for safety to view through the sight glass if the hot surface ignitor and main burner are operating properly Once filled with water it is only necessary to plug the power cord in and make sure the ON OFF switch located on the blower assembly is in the ON position to put the water heater into operation Within seconds the hot surface Water Temperature Setting The temperature of the water in the water heater can be regulated by pressing the buttons on the front of the combination gas control thermostat Safety and energy conservation are factors to be considered when selecting the water temperature setting of the water h
20. F switch turned off Turn ON Blower unplugged Plug in Verify power supply 120VAC Combustion Shutoff System tripped The Combination Gas Control thermostat is set too high The Combination Gas Control thermostat Defective Contact a qualified service technician See the Water Temperature Setting of The Water Heater section of this manual Contact a qualified service technician to replace the combination Gas Control thermostat CAUTION Make certain power to water heater is OFF before removing protective cover FOR ANY REASON CAUTION For your safety DO NOT attempt repair of gas piping Combination Gas Control thermostat burners vent connectors or other safety devices Refer repairs to qualified service personnel CAUTION Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and dangerous operation VERIFY PROPER OPERATION AFTER SERVICING 26 Gas Valve LED Error Codes LED Status Problem Solution VABC 1 Check that the earth ground connection is properly Seer An open earth ground circuit to the connected ignition system 2 Check that the ground conductor on the water heater is properly connected VABC 1 Check proper connection of line O O 9 O Wiring error or a high resistance to neutral and hot wires earth ground 2 Check that the water heater is securely connected to eart
21. all electrical power to the appliance This appliance is equipped with a Hot Surface Ignition System which auto matically lights the burner Do NOT open the inner door ofthis appliance and try to light the burner by hand Waitfive 5 minutes to clear out any gas If you smell gas STOP Follow B in the safety information above on this label If 2 3 8 Turn onall electrical power to the appliance 9 Toggle the ON OFF switch located on the blower assembly to the ON position Set thermostat to the desired temperature setting by pressing the COOLER Qand HOTTER buttons at the same time and holding them for 1 second Depress the HOTTER button until the desired temperature display setting is lit The preferred starting point for temperature setting is indicated byVon the thermostat 10 If the appliance will not operate follow the instructions TO TURN OFF GAS TO APPLIANCE and call your service technician or gas supplier 0000008 conten Q O roren you do not smell gas go ahead to the next step TO TURN GAS OFF TO THE APPLIANCE 1 Set the thermostat to the lowest setting by first depressing the COOLER Q and HOTTER CS buttons at the same time and holding for 1 second Depress the COOLER button until only the WARM indicator light is lit 2 Toggle the ON OFF switch located on the blower assembly to the OFF position 3 Turn off all electrical power to the appliance
22. ation Water Temperature Setting Maximum water temperatures occur just after the burner has shut off To determine the water temperature turn on a hot water faucet and place a thermometer in the water stream To avoid any unintentional changes in water temperature settings the combination gas control thermostat has a tamper resistant feature for changing the temperature setting To change the temperature setting follow these instructions 1 Wake Up the temperature indicators by holding down both COOLER and HOTTER temperature adjustment buttons at the same time for one second see Figure below One or two of the temperature indicators will light up These indicators will only remain on for 30 seconds if no further buttons are pressed After 30 seconds the control will go back to sleep mode 2 Release both of the temperature buttons a To decrease the temperature press and release the COOLER button until the desired setting is reached b To increase the temperature press and release the HOTTER button until the desired setting is reached NOTICE Holding down the button will not continue to lower or raise the temperature setting The button must be pressed and released for each temperature change desired A condition known as stacking or layering can occur when a series of short and frequent hot water draws are taken Temperature Setting Display VABC The hottest temperature water
23. control in all modes of operation In the event that flammable vapours are detected the control will automatically shut down the water heater and prevent the water heater from being started again The following is a list of materials that will cause the Flammable Vapour Sensor to shut down the water heater Vapours of Gasoline Vapours of certain flammable paints stains and thinners Vapours of vent pipe Cement amp Solvents Bleach direct contact with flammable vapour sensor Some other flammable materials and their vapours If the flammable vapour sensor shuts down the water heater then the electronic control will display the appropriate error code and you should then promptly contact a qualified service technician Refer to the NOTICE on page 3 for additional information Care and cleaning of the water heater ADANGER Before manually operating the relief valve make certain no one will be exposed to the danger of the hot water released by the valve The water may be hot enough to create a scald hazard The water should be released into a suitable drain to prevent injury or property damage ADANGER Hotter water increases the potential for Hot Water Scalds ADANGER Failure to perform the recommended Routine Preventative Maintenance can harm the proper operation of this water heater which can cause carbon monoxide dangers excessive hot water temperatures and other potentially haza
24. e water heater s tank every month to clean the tank of these deposits Rapid closing of faucets or solenoid valves in automatic water using appliances can cause a banging noise heard in a water pipe Strategically located risers in the water pipe system or water hammer arresting devices can be used to minimize the problem The anode rod should be removed from the water heater s tank annually for inspection and replaced when more than 6 of core wire is exposed at either end of the rod Make sure the cold water supply is turned off before removing anode rod This water heater incorporates a combustion shut off device that shuts the operation of the water heater down if undesirable combustion conditions occur Such as the presence of flammable vapors or blockage of the combustion air inlet openings Please contact a Qualified Service Technician if this occurs DO NOT expose the flammable vapor sensor to water solvents or cleaning agents 23 Care and cleaning of the water heater M47 t CAMBER F PLNM E f 7 MUST BE REMOVED Ue gt REPLACE GASKET Uy Lb Venting System Inspection Inspect the gas venting system and the chimney Make certain the vent connector from the draft hood to the chimney is properly positioned and securely attached If after inspection of the vent system you found soot or deterioration call the local gas utility to correct the Burner Inspecti
25. e and money Review the charts on the following pages first and you may not need to call for service This water heater incorporates a combustion shut off device that shuts the operation of the water heater down if undesirable combustion conditions occur Such as the presence of flammable vapors or blockage of the combustion air inlet openings Please contact a Qualified Service Technician if this occurs Problem Rumbling noise in tank Relief valve producing popping noise or draining Not enough or no hot water Water is too hot Possible Causes Scale and sediment Pressure build up caused by thermal expansion to a closed system Water usage may have exceeded the capacity of the water heater What To Do Drain the water heater to remove scale and sediment from the tank Refer to page 23 This is an unacceptable condition and must be corrected Contact the water supplier or plumbing contractor on how to correct this Do not plug the relief valve outlet Wait for the water heater to recover after an abnormal demand Low gas pressure Check gas supply pressure and manifold pressure The Combination Gas Control thermostat may be set too low See the Water Temperature Setting of The Water heater section of this manual Leaking or open hot water faucets Make sure all faucets are closed Check valve error codes Refer to gas valve error code table in the next section ON OF
26. e of California to cause cancer birth defects or other reproductive harm WARNING If the information in these instructions is not followed exactly a fire or explosion may result causing property damage personal injury or death A FOR YOUR SAFETY i If you cannot reach your gas supplier call Do not store or use gasoline or other the fire department flammable vapors or liquids or other combustible materials in the vicinity of this or any other appliance To do so may result in an Do not return to your home until authorized by the gas supplier or fire department explosion or fire Improper installation adjustment alteration service or maintenance can cause property WHAT TO DO IF YOU SMELL GAS damage personal injury or death Refer to Do not try to light any appliance this manual Installation and service must be Do not touch any electrical switch do not performed by a qualified installer service use any phone in your building agency or the gas supplier Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions DO NOT RETURN this water heater to the store or place of purchase If you need technical or installation assistance please call the Technical Support Lines at 1 800 432 8373 AP16412 05 12 Printed in USA Safety Information Safety Precautions 3 6 LP Ges Malls assocccococ S Installation Instructions EQCatION ee T 7 Wat
27. e the building Buildings of unusually tight construction shall have the combustion and ventilation air supplied from outdoors or a freely ventilated attic or crawl space If air is supplied from outdoors directly or through vertical ducts there must be two openings located as specified above and each must have a minimum net free area of not less than one square inch per 4000 Btuh of the total input rating of all the appliances in the enclosure If horizontal ducts are used to communicate with the outdoors each opening must have a minimum net free area of not less than one square inch per 2000 Btuh of the total input rating of all the appliances in the enclosure If ducts are used the minimum dimensions of rectangular air ducts shall not be less than 3 NOTICE If the duct openings which supply combustion and ventilation air are to be covered with a protective screen or grill the net free area openings in the material of the covering material must be used in determining the size of the openings Protective screening for the openings MUST NOT be smaller than 1 4 mesh to prevent clogging by lint or other debris will shorten the life of any gas burning appliance Propellants from common spray cans or gas leaks from A C and refrigeration equipment are highly corrosive after passing through a flame The water heater warranty is voided when failure of the heater is due to operation in a corrosive atmosphere Instal
28. e the pressure is easily dissipated A closed water system however prevents the expanding water from flowing back into the main supply line and the result of thermal expansion can create a rapid and dangerous pressure increase in the water heater and Water Supply Connections Refer to the illustration below for suggested typical installation The installation of unions or flexible copper connectors is recommended on the hot and cold water connections so that the water heater may be easily disconnected Typical Installation system piping This rapid pressure increase can quickly reach the safety setting of the relief valve causing it to operate during each heating cycle Thermal expansion and the resulting rapid and repeated expansion and contraction of components in the water heater and piping system can cause premature failure of the relief valve and possibly the heater itself Replacing the relief valve will not correct the problem The suggested method of controlling thermal expansion is to install an expansion tank in the cold water line between the water heater and the check valve see illustration below The expansion tank is designed with an air cushion built in that compresses as the system pressure increases thereby relieving the over pressure condition and eliminating the repeated operation of the relief valve Other methods of controlling thermal expansion are also available Contact your installing co
29. e water heater To avoid the risk of fire explosion or asphyxiation from carbon monoxide never operate this water heater unless it is properly vented and has an adequate air supply for proper operation Be sure to inspect the vent system for proper installation at initial start up and at least annually thereafter Refer to the Care and Cleaning section of this manual for more information regarding vent system inspection AWARNING Gasoline as well as other flammable materials and liquids which include but are not limited to adhesives solvents paint thinners etc and the vapors they produce are extremely dangerous DO NOT handle use or store gasoline or other flammable or combustible materials anywhere near or in the vicinity of a water heater or any other appliance Be sure to read and follow warning label pictured below and other labels on the water heater as well as the warnings printed in this manual Failure to do so can result in property damage bodily injury or death Flammable Vapors FIRE AND EXPLOSION HAZARD Can result in serious injury or death A Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance Storage of or use of gasoline or other flammable vapors or liquids in the vicinity of this or any other appliance can result in serious injury or death IMPORTANT SAFETY INFORMATION READ ALL INSTRUCTIONS BEFORE USING ADANGER WATER TEMPER
30. eater L Clearances from combustion air inlet openings observed see page 9 U Flammable vapor sensor is not blocked C Water connections tight and free of leaks L Soap and water solution used to check all connections and fittings for possible gas leak L Gas Company inspected installation if required U Discharge line protected from freezing L Vent connector s securely fastened together with screws L Single wall vent connector s at least 6 from combustible material C Water heater properly grounded and proper polarity observed 17 Supplemental instructions for gas water heaters installed in potable space heating applications Local codes or plumbing authority requirements may vary from the instructions or diagrams provided in this manual and take precedent over these instructions Hot sees Combination Potable and Space Heating Application A supply to house Tee fitting must be installed as shown ADANGER If this water heater is This ensures that any air in the water lines installed in an application intended to will be purged through the domestic water supply domestic hot water needs and hot Hot Diog faucets and showers water for space heating purposes do not Supply to J From HOT D connect the heater to an existing heating heating outlet on ANGER When this systemi requires Snit or components
31. eater s combination gas control thermostat The lower the temperature setting the greater the savings in energy and operating costs To comply with safety regulations the combination gas control thermostat was set at its lowest setting before the water heater was shipped from the factory The recommended starting point temperature is 120 F 49 C ignitor should heat up then the gas valve should open and the main burner ignite After the main burner ignites replace the outer door If no main burner flame is established the gas control will go through three trials for ignition before going into a lock out A warning light will alert the user of this lock out condition If this happens refer to Troubleshooting Guide TO SHUT OFF WATER HEATER Turn switch located on the side of the blower assembly to the OFF position See diagram on page 31 for location of blower assembly Water temperatures above 125 F 52 C can cause severe burns or death from scalding Be sure to read and follow the warnings outlined in this manual and on the label located on the water heater near the gas control thermostat Mixing valves are available for reducing point of use water temperature by mixing hot and cold water in branch water lines Contact a licensed plumber or the local plumbing authority for further information The chart on the next page may be used as a guide in determining the appropriate water temperature for your install
32. ef valves AWARNING The tank must be full of water before heater is turned on The water heater warranty does not cover damage or failure resulting from operation with an empty or partially empty tank Relief Valve The pressure rating of the relief valve The discharge line must be no smaller must not exceed 150 PSI the maximum than the outlet of the valve and must working pressure of the water heater as pitch downward from the valve to allow marked on the rating plate complete drainage by gravity of the The Btuh rating of the relief valve must anes vale aad E line equal or exceed the Btuh input of the The end of the discharge line should not water heater as marked on its rating plate be threaded or concealed and should be protected from freezing No valve of any type restriction or reducer coupling should be installed in the discharge line Position the outlet of the relief valve above a suitable open drain to eliminate potential water damage Piping used should be of a type approved for hot water distribution To Fill the Water Heater Make certain that the drain valve is closed then open the shut off valve in the cold water supply line Open each hot water faucet slowly to allow the air to vent from the water heater and piping A steady flow of water from the hot water faucet s indicates a full water heater Condensation Condensation can form on the tank when it is first filled with water Condensation mi
33. er Supply Connections 9 GaSiS UPPI E 11 Ripe insulation eee il Heatmaps sere eee 13 Wiring Diagram 14 Installation Checklist 17 Potable Space Heating 18 Operating Instructions Lighting Instructions 19 Water Temperature 20 21 Care and Cleaning Draining e a 23 Maimtenane e a Do Burner Inspection 24 Extended Shut Down 24 Troubleshooting Tips Before You Call HOS chylcc aaa DS KE Customer Service Parts Mist ECTS 31 If You Need Service 32 FOR YOUR RECORDS Write the model and serial numbers here You can find them on a label on the appliance Staple sales slip or cancelled check here Proof of the original purchase date is needed to obtain service under the warranty READ THIS MANUAL Inside you will find many helpful hints on how to use and maintain your water heater properly A little preventive care on your part can save you time and money over the life of your water heater You ll find many answers to common problems in the Troubleshooting Guide If you review the chart of Troubleshooting Tips first you may not need to call for service READ THE SAFETY INFORMATION Your safety and the safety of others are very important There are many important safety messages in this manual and on your appliance Always read and obey all safety messages s This is the safety alert symbol Recognize this symbol as an indication of Important Saf
34. ety Information This symbol alerts you to potential hazards that can kill or hurt you and others All safety messages will follow the safety alert symbol and either the word DANGER WARNING CAUTION or NOTICE These words mean A DANGER An imminently hazardous situation that will result in death or serious injury A WARNING A potentially hazardous situation that could result in death or serious injury and or damage to property A CAUTION A potentially hazardous situation that may result in minor or moderate injury NOTICE Attention is called to observe a specified procedure or maintain a specific condition IMPORTANT SAFETY INFORMATION READ ALL INSTRUCTIONS BEFORE USING Be sure to read and understand the entire Use and Care Manual before 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 result in serious bodily injury or death Should you have problems understanding the instructions in this manual or have any questions STOP and get help from a qualified service technician or the local gas utility ADANGER INSTALL THE DRAFT HOOD AND PROPERLY VENT THE WATER HEATER Failure to install the draft hood and properly vent the water heater to the outdoors as outlined in the Venting Section of the Installation Instructions in this manual can result in unsafe operation of th
35. flammable vapors can be carried some distance from where liquids which give off flammable vapors are to be used or stored The open flame of the water heater s main burner can ignite these vapors and create a shut down condition of the water heater which will not allow the water heater to ignite until examined by a Qualified Service Technician FVIR certified gas water heaters can be installed on a residential garage floor without the use of an 18 inch stand in accordance with the National Fuel Gas Code NFPA 54 ANSI Z223 1 unless otherwise directed by State and Local code requirements The water heater must be located so it is not subject to physical damage for example by moving vehicles area flooding etc The water heater should be installed as close as practical to the gas vent or chimney Long hot water lines should be insulated to conserve water and energy The water heater and water lines should be protected from exposure to freezing temperatures DO NOT install the water heater in bathrooms bedrooms any occupied rooms normally kept closed or in unprotected outdoor areas Minimum clearance from combustible construction me 3 0 0 12 7 6 cm 0 cm 0 cm 30 5 cm WE 0 0 12 oset 17 6 cm 0 cm 0 cm 30 5 cm Front Clearance dimension is measured from the water heater jacket to the closet door Top clearance dimension is measured from the jacket top of the wa
36. following pages first and you may not need to call for service This water heater incorporates a combustion shut off device that shuts the operation of the water heater down if undesirable combustion conditions occur Such as the presence of flammable vapors or blockage of the combustion air inlet openings Please contact a Qualified Service Technician if this occurs Problem Possible Causes Condensation This usually happens when a new water heater is filled for the first time What To Do This is normal After the water in the tank warms up the condensation will disappear If however the condition persists examine the piping and fittings for possible leaks Refer to page 11 for more information Moisture from the products of combustion condensing on the tank surface This is normal and will disappear in time Refer to page 11 for more information An undersized water heater will cause condensation Yellow flame Scale on top of the burner Use a water heater size that meets the requirements of your needs Contact a qualified service technician to remove scale or soot E Flue or Combustion air inlet openings are restricted Remove obstruction or debris from flue or combustion air inlet openings on blower assembly Not enough combustion or ventilation air supplied to the water heater location Unable to light the main burner Air in gas line Proper operation of the water heater requires
37. ge Clean out the tubing periodically to prevent buildup of debris At least once a year lift and release the lever handle on the temperature pressure relief valve located near the top of the water heater to make certain the valve operates freely Allow several gallons to flush through the discharge line to an open drain NOTICE If the temperature and pressure relief valve on the hot water heater discharges periodically this may be due to thermal expansion in a closed water system Contact the water supplier or your plumbing contractor on how to correct this DO NOT plug the relief valve outlet A water heater s tank can act as a settling basin for solids suspended in the water It is therefore not uncommon for hard water deposits to accumulate in the bottom of Housekeeping Visually inspect the hot surface ignitor Make sure that the flammable vapor sensor is not blocked or obstructed To ensure sufficient ventilation and combustion air supply proper clearances must be maintained the tank If allowed to accumulate these solids can cover the combination gas control thermostat sensors causing the sensors to operate erratically Because accumulated solids can prevent the combination gas control thermostat sensors from accurately reading the water temperature the water at the fixture can be hotter than the combination gas control thermostat setting It is suggested that a few quarts of water be drained from th
38. ght also occur with a heavy water draw and very cold inlet water temperatures Drops of water falling on the burner can produce a sizzling or pinging sound This condition is not unusual and will disappear after the water becomes heated If however the condensation continues examine the piping and fittings for possible leaks 11 Installing the water heater AWARNING 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 AWARNING Never use an open flame to test for gas leaks as property damage personal injury or death could result AWARNING Failure to install a water heater suitable for the altitude at the location it is intended to serve can result in improper operation of the appliance resulting in property damage and or producing carbon monoxide gas which could result in personal injury or death 12 Gas Supply The branch gas supply line to the water heater should be clean properly sized black steel pipe or other approved gas piping material A union or ANSI design certified semi rigid or flexible gas appliance connector should be installed in the gas line close to the water heater The National Fuel Gas Code NFGC mandates a manual gas shut off valve See NFGC for complete instructions Compound used on the threaded joints of the gas piping must be of the
39. h Drain valve Plenum Internal Sight Glass Plenum Gasket Plenum Back Plate Flammable Vapor Sensor External Sight Glass Combination Gas Control Jacket Door Thermostat um Lon Mounting Screws Inner Door Gasket Plenum Nuts Burner Supply Tube 31 IF YOU NEED SERVICE 32 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 directory commercial listings or local utility for qualified service assistance 2 Should your problem not be solved to your complete satisfaction you should then contact the Manufacturer s National Service Department at the following address Rheem Manufacturing Co Water Heater Division 1241 Carwood Court Montgomery Alabama 36117 Phone 1 800 432 8373 When contacting the manufacturer the following information will be requested a Model and serial number of the water heater as shown on the rating plate attached to the jacket of the heater b Address where the water heater is located and physical location c Name and address of installer and any service agency who performed service on the water heater d Date of original installation and dates any service work was performed Details
40. h ground VABC sue switch remained closed 1 Verify that the wiring to the pressure switch es is TURON than 5 seconds after the call for correct heat began 2 Replace the pressure switch es VABC 1 Verify that the wiring to the pressure switch es is eoeooe correct er us bsc e p 2 Verify that the wiring to the pressure switch es is fon blower was energized connected correctly 3 Check the vent and or combustion air inlet systems for obstructions Y ABC Error in the hot surface ignitor cir 1 Check that all wiring is correct and secure e o o e e cut 2 Replace hot surface ignitor V ABC System in lockout 1 Gas supply is off or too low to operate Turn on the eooeeo gas supply and or increase the inlet gas supply pres sure 2 Hot surface ignitor not positioned correctly 3 Low voltage to the water heater Increase supply volt age to rated voltage 4 Electric polarity to unit is incorrect test and correct 5 Check the vent and or the combustion air inlet sys tems for obstructions VABC 1 Turn power to the water heater off for 10 seconds eoooee Elen in the gas valve driver cir and then back on 2 Replace Combination Gas Control thermostat VABC 1 Turn power to the water heater off for 10 seconds O Problem with the internal circuit and then back on 2 Replace Combination Gas Control thermostat VABC 1 Turn power to the water heater off for 10 seconds Problem with the in
41. he burner by hand BEFORE PUTTING THIS APPLIANCE INTO SERVICE Smell all around the appliance area for gas Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor WHAT TO DO IF YOU SMELL GAS e Do not try to light any appliance e Do not touch any electric switch do not use any phone in your building e Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions e If you cannot reach your gas supplier call the fire department C Use only your hand to push in the gas control buttons Never use tools If the control buttons will not push in don t try to repair them call a qualified service technician Force or attempted repair may result in fire or explosion Do not use this appliance if any part has been under water Immediately call a qualified installer or service agency to replace a flooded water heater Do not attempt to repair the unit It must be replaced OPERATING INSTRUCTIONS 1 Stop Read the safety information above onthis label Toggle the ON OFF switch located on the blower assembly to the ON position Setthe thermostat to the lowest setting by pressing the COOLER Qand HOTTER buttons at the same time and holding them for 1 second Depress the COOLER button until only the WARM indicator light is lit Toggle the ON OFF switch located on the blower assembly to the OFF position Turn off
42. is check valve is incorporated in some heating units Refer to the installation instructions supplied with specific heating unit to determine if it is required See diagrams above for proper pipe application for vertical or horizontal supply lines Isolation valve in hot water supply line to heating unit not supplied with water heater Temperature and Pressure Relief Valve tie to location approved by local code i Gas line to water heater gt Minimum of 2 0 developed length pipe 3 4 Tempered domestic hot water supply to house r wae SF s Sy Y Heat Trap eS 6 Min Ho d c 3 4 Shut O T Off Valve adii A j to Heating Coil Drain valve Temperature and pressure relief valve discharge line Gas Fired Water heater jacket Water Heater Combination Gas Control Thermostat Water Heater drain pan installed in accordance with the Local and State Code Flammable Vapor Sensor Water Heater to be in accordance with the Local and State Energy Code All water piping shall be insulated in oo with Local and State Energy ode 18 not supplied with water heater Isolation valve in cold water return line from heating unit not supplied with water heater Gas Direct Vent discharge must comply with Local and State Code y 3 4 Shut Off Valve Typ 2 Gallon Thermal Expansion Tank if required not supplied with water heater Pressure Gauge 3
43. l exclude warranty coverage 24 Vacation and Extended Shut Down If the water heater is to remain idle for an extended period of time the power and water to the appliance should be turned off to conserve energy and prevent a build up of dangerous hydrogen gas The water heater and piping should be drained if they might be subjected to freezing temperatures Anode Rod This water heater is equipped with an anode rod designed to prolong the life of the glass lined tank The anode rod is slowly consumed thereby eliminating or minimizing corrosion of the glass lined tank Blower ADANGER Disconnect power to blower before cleaning Clean the blower periodically to remove any buildup of lint or dirt Remove the After a long shut down period the water heater s operation and controls should be checked by qualified service personnel Make certain the water heater is completely filled again before placing it in operation Water sometimes contains a high sulfate and or mineral content and together with cathodic protection process can produce a hydrogen sulfide or rotten egg odor in the heated water Chlorination of the water supply should minimize the problem inlet plate and blow out any lint or dirt on the wheel and on the screen of the inlet plate Before operation re install the inlet plate to the blower Before You Call For Service Troubleshooting Tips Save time and money Review the charts on the
44. let openings located around the perimeter of the outer door A minimum of 1 is required between these combustion air inlet openings and any obstruction NOTICE If the water heater is installed in an unconfined space within a building of conventional frame masonry or metal construction infiltration air is normally adequate for proper combustion and ventilation If the water heater is installed in a confined space provisions for combustion and ventilation air must be made A confined space is one having a volume of less than 50 cubic feet per 1000 Btuh of the aggregate input of all appliances within that space The air must be supplied through two permanent openings of equal area One is to be located within 12 above the floor and the other is to be located within 12 from the ceiling The minimum net free area of each opening must not be less than one square inch per 1000 Btuh of the total input rating of all the appliances in the enclosure Corrosive Atmospheres The air in beauty shops dry cleaning establishments photo processing labs and storage areas for liquid and powdered bleaches or swimming pool chemicals often contain such halogenated hydrocarbons An air supply containing halogenated hydrocarbons may be safe to breathe but when it passes through a gas flame corrosive elements are released that but not less than 100 square inches if each opening communicates with other unconfined areas insid
45. ling the water heater IMPORTANT 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 cold water connections on heater Any heat applied to the cold water supply fittings will permanently damage the dip tube and the heat traps in the hot cold nipples NOTICE The National Fuel Gas Code NFGC mandates a manual gas shut off valve See NFGC for complete instructions Local codes or plumbing authority requirements may vary from the instructions or diagrams provided and take precedent over these instructions 10 Flammable Vapor Sensor Thermal Expansion Determine if a check valve exists in the inlet water line Check with your local water utility company It may have been installed in the cold water line as a separate back flow preventer or it may be part of a pressure reducing valve water meter or water softener A check valve located in the cold water inlet line can cause what is referred to as a closed water system A cold water inlet line with no check valve or back flow prevention device is referred to as an open water system As water is heated it expands in volume and creates an increase in the pressure within the water system This action is referred to as thermal expansion In an open water system expanding water which exceeds the capacity of the water heater flows back into the city main wher
46. ls to shut off Read this manual entirely before installing DO NOT attempt to repair or replace or operating the water heater any part of your water heater unless it is specifically recommended in this manual All other servicing should be referred to a qualified technician Use this appliance only for its intended purpose as described in this Use and Care Manual Be sure your appliance is properly installed in accordance with local codes and the provided installation instructions xw READ AND FOLLOW THIS SAFETY INFORMATION 4 K CAREFULLY SAVE THESE INSTRUCTIONS Installing the water heater This water heater must be installed in accordance with these instructions local codes utility company requirements and or in the absence of local codes use the latest edition of the American National Standard National Fuel Gas Code A copy can be purchased from either the American Gas Association 400 N Capitol Street NW Washington DC 20001 as ANSI standard Z223 1 or National Fire Protection Association 1 Batterymarch Park Quincy MA 02269 as booklet NFPA 54 Flammable Vapor Sensor Diameter of water heater plus 2 min The auxiliary catch pan installation MUST conform to local codes NOTICE DO NOT allow the flammable vapour sensor to become submerged in water Make sure the catch pan is properly drained Top View Alcove Sides Front Open Top View Closet Rear Sides Front Enclo
47. n air inlet systems for ob structions Y BCDEF Problem in the combination gas valve 1 Turn power to the water heater off for 10 seconds and then O O O 60 6 driver circuit back on 2 Replace the combination gas control thermostat Y BCDEF Problem with the internal circuit 1 Turn power to the water heater off for 10 seconds and then a c ac back on 2 Replace the combination gas control thermostat Y BCDEF Problem with the internal circuit 1 Turn power to the water heater off for 10 seconds and then 2 2 back on 2 Replace the combination gas control thermostat Y BCDEF Flame signal sensed out of 1 Replace the combination gas control thermostat O O O O proper sequence Y BCDEF ECO activated 1 Allow water temperature in the tank to cool off then turn pow Secs s er to the water heater off for 10 seconds and then back on 2 If error code re occurs reduce the thermostat setting 3 Replace the combination gas control thermostat Y BCDEF One of the temperature adjust 1 Press and release each of the buttons once O O O buttons stuck closed 2 Replace the combination gas control thermostat Y BCDEF Water temperature sensor is either 1 Check that all wiring is correct and secure O O open or short circuited 2 Replace the combination gas control thermostat VBCDEF Unit shuts down 1 Check for correct wiring to FV sensor ub 2 2 Check for open circuits to FV sens
48. ntractor water supplier or plumbing inspector for additional information regarding this subject for servicing if necessary The HOT and COLD water connections are clearly marked and are 1 NPT on all models Install a shut off valve in the cold water line near the water heater Vent connector to chimney Union Heat trap Ces 6 minimum Qo gt Hot water outlet to fixtures Water Heater Jacket Temperature and pressure relief valve Manual gas shut off To gas supply Ground joint union Sediment trap On Cap Ral Combination Gas C bul Sa ie Il thermostat A x Jacket door Auxiliary catch pan ______ Drain Pan Pipe to suitable drain Draft hood Anode pe lt q Pitch up 1 4 d e Zor per foot ra ao Union Gq Shut off valve 3 0 Oh F Q TA COR a To cold water 4 supply Shut off valve Heat trap 6 minimum Thermal expansion tank if required Relief valve discharge Drain line to suitable open valve drain 6 Air gap A new combination temperature and pressure relief valve complying with the Standard for Relief Valves and Automatic Gas Shut Off Devices for Hot Water Supply Systems ANSI Z21 22 is supplied and must remain in the opening provided and marked for the purpose on the water heater No valve of any type should be installed between the relief valve and the tank Local codes shall govern the installation of reli
49. of a heating system unit t ET water for space heating at elevated Tee fitting for vertical hot water supply lines Hot water From HOT supply to outlet on house water heater E nd gt Hot water supply to heating unit Tee fitting for horizontal hot water supply lines temperatures above 125 F 52 C a mixing or tempering valve must be installed in the hot water supply line to the house in order to reduce the scald hazard potential ADANGER Any piping or components used in the installation of this water heater in a combination potable and space heating application must be suitable for use with drinking water that have previously been used with a non drinking water system Toxic chemicals such as those used for boiler treatment may be present and will contaminate the drinking water supply causing possible health risks Never introduce toxic chemicals such as those used for boiler treatment into this system NOTICE 50 ft maximum distance from water heater to fan coil developed length is required for Massachusetts state Typical Piping Diagram for Combination Potable Space Heating Installation Nominal 3 4 size mixing or tempering valve refer to warning above Follow mixing or tempering valve manufacturer s instructions for installation of the valve of 3 Spring loaded check valve in heating unit hot water supply line and cold water return line not supplied with water heater NOTICE Th
50. of the problems as you can best describe them List of people with dates who have been contacted regarding your problem mh oO
51. on Through the sight glass visually inspect the hot surface ignitor and main burner periodically Inspect the hot surface ignitor with the main burner off and inspect the main burner while firing If any unusual burner operation is noted the water heater should be shut off until qualified service assistance can be obtained problem and clean the flue or replace the flue flue baffle and venting system before resuming operation of the water heater Test for spillage at the draft hood relief opening after 5 minutes of burner operation Use a flame of a match or candle or smoke ACAUTION For your safety cleaning of the burner must be performed only by qualified service personnel as it involves the disconnection of gas piping and leak testing The burner chamber is a sealed area If the burner access door is removed the inner door gasket must be replaced For cleaning remove the inner doors burner assembly from the water heater A vacuum cleaner can be used on the burner and inside the water heater The burner can also be cleaned by blowing air over the burner surface Do not allow any large debris to remain inside the burner NOTICE Refer to the Hydrogen Gas Caution in the Operating Instructions NOTICE Do not remove the anode rod from the water heater s tank except for inspection and or replacement as operation with the anode rod removed will greatly shorten the life of the glass lined tank and wil
52. on of insulation blanket kits the manufacturer s instructions included with the kit must be carefully followed Venting Vent connectors must be attached to the draft hood outlet to connect the water heater to the gas vent or chimney The vent connectors must be the same size diameter as the draft hood or larger never smaller For proper venting in certain installations a larger vent connector size may be needed Consult the latest version of the National Fuel Gas Code ANSI Z223 1 NFPA 54 Insulation Blankets Insulation blankets available to the general public for external use on gas water heaters are not necessary The purpose of an insulation blanket is to reduce the standby heat loss encountered with storage tank heaters This water heater meets or exceeds the National Appliance Energy Conservation Act standards with respect to insulation and standby loss requirements making an insulation blanket unnecessary The manufacturer s warranty does not cover any damage or defect caused by installation attachment or use of any type of energy saving or other unapproved devices other than those authorized by the manufacturer into onto or in conjunction with the water heater The use of unauthorized energy saving devices may shorten the life of the water heater and may endanger life and property The manufacturer disclaims any responsibility for such loss or injury resulting from the use of such unauthorized device
53. or 3 Replace FV sensor Y BCDEF Unit shuts down and in lockout 1 FV sensor detected presence of flammable vapours scu es 2 Contact a service agency CAUTION Make certain power to water heater is OFF before removing protective cover FOR ANY REASON A CAUTION Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and dangerous operation VERIFY PROPER OPERATION AFTER SERVICING A CAUTION For your safety DO NOT attempt repair of gas piping Combination Gas Control thermostat burners vent connectors or other safety devices Refer repairs to qualified service personnel 28 Notes 29 Notes 30 Replacement Parts For 75 and 98 gallon models using natural gas Instructions For Placing a Parts Order All parts orders should include Dep Pree een atts 3 part description as noted below and 4 1e model and serial number of the number of parts desired water heater from the rating plate A CAUTION For your safety DO 2 Specify type of gas natural or LP NOT attempt repair of gas piping as marked on the rating plate Combination Gas Control thermostat burners vent connectors or other safety devices Refer repairs to qualified service personnel O Heat Trap Nipple Heat Trap Nipple sa TERES i Baffle Assembly Anode rod lt Dip tube gasket Dip tube e 1 79 Temperature and pressure relief valve Blower with Pressure Switc
54. rdous conditions ADANGER Combustible materials such as clothing cleaning materials or flammable liquids etc must not be placed against or next to the water heater Draining the Water Heater ACAUTION Shut off gas to the water heater at the gas control thermostat manual shut off valve before draining water ADANGER Before manually operating the temperature and pressure relief valve make certain no one will be exposed to the hot water released by the valve The water drained from the tank may be hot enough to present a scald hazard and should be directed to a suitable drain to prevent injury or damage In order to drain the water heater turn off the cold water supply Open a hot water faucet or lift the handle on the relief valve to admit air to the tank Attach a garden hose to the drain valve on the water heater and direct the stream of water to a drain Open the valve 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 gas control thermostat burner relief valve internal flue way and venting system should be made by service personnel qualified in gas appliance repair It is suggested that a routine preventative maintenance program be established and followed by the user PRESSURE SWITCH Inspect the inlet to the pressure switch and the tubing for debris or blocka
55. s Horizontal vent connectors must be pitched upward to the chimney at least 1 4 per foot of length Single wall vent connectors must be at least 6 from adjacent unprotected combustible surface Vent joints must be securely fastened by sheet metal screws or other approved method Test for spillage at the draft hood relief opening after 5 minutes of main burner operation Use a flame of a match or candle or smoke The flame or smoke should be pulled into the draft hood s relief opening s ACAUTION If local codes require the application of an external insulation blanket to this water heater pay careful attention to the following so as not to restrict the proper function and operation of the water heater DO NOT cover the operating or warning labels attached to the water heater or attempt to relocate them on the exterior of insulation blanket DO NOT apply insulation to the top of the water heater This will interfere with the safe operation of the draft hood DO NOT cover the burner access door jacket door gas control thermostat gas valve or pressure and temperature relief valve DO NOT apply insulation to the bottom of the water heater or the area where the combustion air inlet openings are located This area must be unobstructed so as not to restrict combustion air flow to the burner DO NOT apply insulation to the area where the flammable vapor sensor is located This area must be unobstructed so as not
56. sed A WARNING Combustible construction refers to adjacent walls and ceilings and should not be confused with combustible or flammable products and materials Combustible and or flammable products and materials should never be stored in the vicinity of this or any gas appliance Location The water heater should not be located in an area where leakage from the tank or connections will result in damage to the area adjacent to the heater or to lower floors of the structure When such areas cannot be avoided it is recommended that a suitable catch pan adequately drained must be installed under the water heater The pan must not restrict air flow to the combustion air inlet openings perforation openings located around the lower perimeter of the water heater Catch pan kits are available from the store where the water heater was purchased or any water heater distributor Make certain the floor underneath the water heater is strong enough to sufficiently support the weight of the water heater once it is filled with water A gas fired water heater or any other appliance should not be installed in a space where liquids which give off flammable vapors are to be used or stored Such liquids include gasoline LP gas butane or propane paint or adhesives and their thinners solvents or removers DO NOT block or obstruct the Flammable Vapor Sensor Because of natural air movement in a room or other enclosed space
57. ter heater to the ceiling If the clearances stated on the Instruction Warning Label located on the front of the heater differ install the water heater according to the clearances stated on the label If the water heater is installed in an alcove or closet the entire floor must be covered by a wood or metal panel A minimum of 24 clearance from the front and top should be available for adequate inspection and servicing The water heater may be installed on combustible floors but not directly on carpeting If the water heater must be installed on carpeting place a metal or wood panel beneath the water heater extending beyond its full width and depth at least 3 in all directions NOTICE The water heater should not be installed near an air supply containing halogenated hydrocarbons Inspect Shipment Carefully inspect the water heater for damage before proceeding with the installation Of specific interest should be any dents or damage to the blower or plenum assembly If you find damage DO NOT install or attempt any repair to the water heater Contact the manufacturer as detailed under IF YOU NEED SERVICE on page 32 Combustion and Ventilation Air Proper operation of the water heater requires air for combustion and ventilation Provisions for combustion and ventilation air must comply with referenced codes and standards When installed in a closet DO NOT block or obstruct any of the combustion air in
58. ternal circuit and then back on 2 Replace Combination Gas Control thermostat Y ABC Flame signal sensed out of 1 Replace Combination Gas Control thermostat O O O O proper sequence M A B c ECO activated 1 Replace Combination Gas Control thermostat Y ABC One ofthe temperature adjust 1 Press and release each of the buttons once e o 06 buttons stuck closed 2 Replace Combination Gas Control thermostat V ABC Water temperature sensor is either open 1 Check that all wiring is correct and secure O O or short circuited 2 Replace Combination Gas Control thermostat VABC 1 Check for correct wiring to FV sensor 0 0 O Unit shuts down 2 Check for open circuits to FV sensor 3 Replace FV sensor VABC 1 FV sensor detected presence of flammable vapors 00 0 O Unit shuts down and in lockout 2 Contact a service agency CAUTION Make certain power to water heater is OFF before removing protective cover FOR ANY REASON CAUTION Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and dangerous operation VERIFY PROPER OPERATION AFTER SERVICING CAUTION For your safety DO NOT attempt repair of gas piping Combination Gas Control thermostat burners vent connectors or other safety devices Refer repairs to qualified service personnel 27 Gas Valve LED Error Codes Problem Solution
59. to restrict air flow to the sensor Inspect the insulation blanket frequently making certain it has not sagged and is restricting the air flow to the combustion air inlet openings located around the perimeter of the water heater outer door This could result in an unsafe operating condition 13 Installing the water heater 14 Wiring This water heater may be connected to electric service with the power cord provided DO NOT use an extension cord A grounding receptacle is required If local codes do not permit the use of cord connections a 120 V 50 60 Hz power supply with suitable disconnecting means must be connected to the black and white leads in the blower assembly The maximum current draw is less than 5 0 amps CONNECTOR DIAGRAM SCHEMA DES CONNEXIONS ON OFF SWITCH CONTACTEUR BLOWER ASSEMBLY H ee PRISE DE 120 VCA POUR G L ENSEMBLE DE N SOUFFLEUR D VENT M CHANIQUE 1 1 120 VAC PLUG FOR POWERVENT f MARCHE ARR T T PRESSURE BLOWER SW NO i SOUFFLEUR CONTACTEUR A DEPRESSION 1 1 POWER VENT BLOWER 1 ASSEMBLY 1 ENSEMBLE DU 1 SOUFFLEUR AN 1 D VENT Hueemcerepee pp RE M CANIQUE i 6 PIN CONNECTOR I 1 CONNECTEUR A Ss ie oli nen ds 6 BROCHES FLAMMABLE IGNITER AND VAPOR SENSOR FLAME SENSOR DETECTEURDE ALLUMEUR ET VAPEUR CAPTEUR DE INFLAMMABLE FLAMME GAS VALVE SOUPAPE DE GAZ CONTR LE LECTRONIQUE INTELLI VENT
60. type resistant to the action of LP gas Use compound sparingly on male threads only Where a sediment trap is not incorporated as part of the appliance a sediment trap shall be installed downstream of the equipment shutoff valve as close to the Leak Testing The water heater and its gas connections must be leak tested at normal operating pressures before it is placed in operation 1 Turn on the manual gas shut off valve near the water heater 2 Use a soapy water solution to test for leaks at all connections and fittings Bubbles indicate a gas leak that must be corrected inlet of the appliance as practical at the time of the appliance installation The sediment trap shall be either a tee fitting with a capped nipple in the bottom outlet or other device recognized as an effective sediment trap Do not use excessive force over 31 5 ft Ibs in tightening the pipe joint at the Combination Gas Control thermostat inlet particularly if teflon pipe compound is used as the valve body may be damaged The inlet gas pressure to the water heater must not exceed 14 w c for natural gas For purposes of input adjustment the minimum inlet gas pressure with main burner on is shown on the water heater rating plate If high or low gas pressures are present contact your gas supplier for correction The factory connections to the gas control thermostat should also be leak tested after the water heater is placed in operation

Rheem Professional Classic Plus Series: Heavy Duty Ultra Low NOx Atmospheric Use & Care Manual

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Rheem Professional Classic Plus Series: Heavy Duty Ultra Low NOx Atmospheric Use &amp; Care Manual

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Rheem Professional Classic Plus Series: Heavy Duty Ultra Low NOx Atmospheric Use & Care Manual