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Rheem XP50T06PV42U0 Instructions / Assembly

1. w Or A DANGER Hotter water Ur increases the potential for Hot x Water SCALDS Valve Set Estimated Burns on Adult Skin Point Temperature LOW 90 F e 98 F e 105 F e 113 F_ 1 o HOT 120 F More than 5 minutes A 130 F About 30 seconds B 140 F Less than 5 seconds C 150 F About 1 1 2 seconds VERY HOT 160 F About 1 2 second ADANGER LIQUEFIED PETROLEUM LP PROPANE OR BUTANE AND NATURAL GAS MODELS 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 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
2. 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 A DANGER WATER TEMPERATURE 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 A DANGER 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 NOTICE Mixing valves are recommended for reducing point of use water temperature by mixing hot and cold water in branch water lines It is recommended that a mixing valve complying with the Standard for Temperature Actuated Mixing Valves for Hot Water Distribution Systems ASSE 1017 be installed See pages 31 amp
3. 33 for more details and contact a licensed plumber or the local plumbing authority for further information 4 Time Temperature Relationship in Scalds Water Temperature Time To Produce a Serious Burn 120 F More than 5 minutes 125 F 1 2 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 The chart shown above may be used as a guide in determining the proper water temperature for your home 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 33 and 34 for more details The temperature of the water in the heater can be regulated by rotating the dial on the front of the gas control thermostat To comply with safety regulations the gas control thermostat was set at its lowest setting before the water heater was shipped from the factory The illustration below details the approximate water temperature for each mark on the Gas Control Thermostat Temperature Dial
4. 39 Before You Call For Service Troubleshooting Tips Save time 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 Possible Causes Rumbling noise Relief valve pro ducing popping noise or draining System Water usage may have exceeded the capacity of the water heater Not enough or no hot water Low gas pressure The gas control thermostat may be set too low Leaking or open hot water faucets Check valve error codes ON OFF switch turned off Blower unplugged Combustion Shutoff System tripped Water is too hot is set too high Gas Control Thermostat Defective Scale and sediment in tank Pressure build up caused by thermal expansion to a closed The gas control thermostat What To Do Clean tank 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 abnor mal demand Check gas supply pressure and manifold pressure See the Water Temperature Settin
5. Number of 90 Number of Length in Feet ft Length in Feet ft elbows with Vent 45 Elbows 0 2 000 2 001 and above Three 3 For the 2 vent one 90 elbow is approximately equal to 6 feet of vent pipe One 45 elbow is approximately equal to 3 feet of vent pipe NOTICE The mixing of 2 and 3 vent pipe is not recommended If 3 pipe is used a 2 to 3 reducer fitting is recommended at the rubber coupling This water heater is supplied with a two inch Schedule 40 PVC 45 vent terminal When venting with 3 pipe a Schedule 40 PVC 45 vent terminal must be used Screens for both 2 and 3 vent terminals have been included Minimum vent length for 3 vent pipe is one 1 foot of vertical pipe one 1 90 elbow and four 4 feet of horizontal pipe Maximum Venting information for 3 Vents Maximum Vent Pipe Maximum Vent Pipe Number of 90 Number of Length in Feet ft Length in Feet ft elbows with Vent 45 Elbows 2 001 and above Five 5 For the 3 vent one 90 elbow is approximately equal to 5 feet of vent pipe One 45 elbow is approximately equal to 2 5 feet of vent pipe 16 Additional Venting Requirements Installations requiring less than one 1 foot of vertical pipe before the first elbow subtract six 6 feet from the maximum vent length Less than 1 ft vertical pipe before first elbow Minimum Vent Restrictor Install the vent restrictor only at the min
6. Schedule 40 ASTM D2661 and fittings are used for the entire vent system ABS Schedule 40 DWV Cellular Core Vent pipe materials must be chosen based ASTM F628 upon the ambient temperature where the water heater is installed and the location within the vent system See chart below for material re quirements The fittings other than the TERMINATION should be equivalent to the following PVC Schedule 40 DWV ASTM D2665 CPVC Schedule 40 ASTM F438 ABS Schedule 40 DWV ASTM D2661 Ambient Installation Temperatures and Vent System Material Specifications Below 100 F 38 C 100 F 38 C to 125 F 52 C 0 to Max ft 0 to 10 ft 10 ft to Max 0 to Max m 0 to 3 m 0 m to Max Equivalent Vent Equivalent Vent Equivalent Vent Models System Length System Length System Length 40 and 50 Gallon PVC CPVC or ABS CPVC or ABS PVC CPVC or ABS 14 Condensate Management and Vent Risers There is no condensate collection and disposal required for Rheem water heaters under most conditions Installations where the vent run is short or it runs through conditioned space in the home such as basements or interior walls do not typically cause condensation and will not require any condensation disposal methods regardless of vent pipe slope Figure 1 shows the recommended vent pipe slope of no less than 1 8 inch per foot away from the water heater Any condensation in the venting system will drain toward the ve
7. The discharge line must be no smaller than the outlet of the valve and must pitch downward from the valve to allow complete drainage by gravity of the relief valve and discharge line The end of the discharge line should not 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 DO NOT allow the flammable vapor sensor to become submerged in water WARNING 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 A WARNING Never use an open flame to test for gas leaks as property damage personal injury or death could result A WARNING 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 Gas Supply The branch gas supply line to the water heater should be clean 1 2 black steel pipe or other approved gas piping material A ground joint 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
8. for complete instructions If flexible connectors are used the maximum length shall not exceed 36 and must meet the requirements in ANSI Z21 24 Connectors for Gas Appliances If lever type gas shut offs are used they shall be T Handle type Compound used on the threaded joints of the gas piping must be of the type resistant to the action of LP gas Use compound sparingly on male threads only Where a sediment trap is not Leak Testing The water heater and its gas connections must be leak tested at normal operating pressures before it is placed in operation 4 Turn on the manual gas shut off valve near the water heater 9 Use a soapy water solution to test for leaks at all connections and incorporated as part of the appliance a sediment trap shall be installed downstream of the equipment shutoff valve as close to the 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 lbs in tightening the pipe joint at the 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 10 5 w c for natural gas or 14 w c for LP gas For purposes of input adjustment the minimum inlet gas press
9. inch NOTICE This unit is equipped with a Flammable Vapor Sensor DO NOT apply power until enough time has passed to allow the vapors from the primer and cement to dissipate Wiring If local codes permit the water heater may be The water heater must be electrically grounded connected to electric service with the power in accordance with local codes or in the cord provided DO NOT use an extension absence of local codes in accordance with cord A grounding receptacle is required latest edition of the National Electric Code ANSI NFPA No 70 Refer to the figures below If local codes do not permit the use of cord for water heater internal wiring connections a 120 V 50 60 Hz power supply with suitable disconnecting means must be NOTICE It is not recommended that this connected to the black and white leads in the unit be installed on a GFCI circuit heater control enclosure A knock out hole is provided to permit use of conduit or metal clad cable connectors The maximum current draw is approximately 5 0 amps Diagram Without Optional Electronic Display CONNECTION DIAGRAM SCHEMATIC PRESSURE lt a gt SWITCH BK BLACK BL BLUE G GREEN R RED W WHITE Y YELLOW TEMPERATURE SWITCH 3x2 CONNECTOR A o e E z o o ul e No 3 gt 120 NEUTRAL ACAUTION Label all wires LAGE to disconnection when servicing controls Wiring errors can cause improper and dangerous operation VERIFY
10. Wire ori Zip Ties d To Drain Figure 3 If the venting system is vertical and condensation handling is required then the blower coupling drain port and tube must be used as described previously Any horizontal portion of the vent pipe must slope toward the water heater at a minimum of 1 8 inch per foot so a water trap is not created See Figures 4 amp 5 as examples ofa vertical instal lations with condensation removal tube and trap Figure 4 Figure 5 A vent riser is used when the vent termination can not be located above grade or snow lines Power vented water heaters installed with a vent riser should have a slope toward the water heater if the venting is long and passes through unconditioned spaces It is recommended that these installa tions have the condensate collection and disposal method defined previously Figure 6 shows a condition where a vent riser is necessary to meet the minimum clearance Note that the vent pipe must slope back to the water heater so that a water trap is not created at the outside 90 degree elbow FLOOR ABOVE GROUND OR MAXIMUM SNOW LEVEL Figure 6 15 Installing the water heater Maximum and Minimum Vent Lengths for Residential 40 amp 50 Gallon Power Vents Minimum vent length for 2 vent pipe is one 1 foot of vertical pipe one 1 90 elbow and three 3 feet of horizontal pipe Maximum Venting information for 2 Vents Maximum Vent Pipe Maximum Vent Pipe
11. 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 ope n Safety Precautions A DO turn off manual gas shut off valve if water heater has been subjected to over heating fire flood physical to shut off DO NOT turn completely filled with water DO NOT turn supply shut off valve is closed newspaper rag water heater A DANGER Hotter water increases the Potential for Hot Water SCALDS 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 DO NOT allow combustible materials such as damage or if the gas supply fails E DO NOT store or use gasoline or other flammable vapors and liquids such as adhesives or paint thinner in vicinity of this or any other appliance If such flammables must be used open on water heater unless it is on water heater if cold water s or mops to accumulate near heater doors and windows for ventilation and all gas burning applia
12. all venting design instructions shall remain with the appliance or equipment at the completion of the installation 3 After NFPA 54 section 10 10 4 2 add a new section 10 10 4 3 as follows When more than four gas appliances are to be vented through a common gas vent or common horizontal vent manifold a plan of the proposed vent installation shall be submitted to the Inspector and the serving gas supplier for review and approval
13. 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 burner access door gasket must be replaced For cleaning remove the burner from the water heater A vacuum cleaner can be used on the burner and floor shield inside the water heater The burner can also be cleaned by scrubbing with mild detergent 37 Care and cleaning of the water heater 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 will exclude warranty coverage 38 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 After a long shut down period the water heater s operat
14. comply with the above requirements provided however that during said thirty 30 day period a battery operated carbon monoxide detector with an alarm shall be installed 2 APPROVED CARBON MONOXIDE DETECTORS Each carbon monoxide detector as required in accordance with the above provisions shall comply with NFPA 720 and be ANSI UL 2034 listed and IAS certified 3 SIGNAGE A metal or plastic identification plate shall be permanently mounted to the exterior of the building at a minimum height of eight 8 feet above grade directly in line with the exhaust vent terminal for the horizontal ly vented gas fueled heating appliance or equipment The sign shall read in 44 print size no less than one half 1 2 inch in size GAS VENT DIRECTLY BELOW KEEP CLEAR OF ALL OBSTRUCTIONS 4 INSPECTION The state or local gas inspector of the side wall horizon tally vented gas fueled equipment shall not approve the installation unless upon inspection the inspector observes carbon monoxide detectors and signage installed in accordance with the provisions of 248 CMR 5 08 2 a 1 through 4 b EXEMPTIONS The following equipment is exempt from 248 CMR 5 08 2 a 1 through 4 1 The equipment listed in Chapter 10 entitled Equipment Not Required To Be Vented in the most current edition of NFPA 54 as adopted by the Board and 2 Product Approved side wall horizontally vented gas fueled equipment installed in a room or structure separate from the dwelli
15. connections tight Q Provisions made to protect area from water damage Q Sufficient room to service heater C Combustible materials such as clothing cleaning materials rags etc clear of the base of the heater L Clearances of 1 from combustion air inlet openings observed C Flammable vapor sensor is not blocked C Water connections tight and free of leaks C Soap and water solution used to check all connections and fittings for possible gas leak C Gas Company inspected installation if required C Discharge line protected from freezing C Vent pipe supported at required intervals Q Appropriate minimum clearances observed C Precautions taken to prevent moisture damage around vent termination C Vapors from vent pipe cement and primer have dissipated prior to applying electrical power C Heater properly grounded and proper polarity observed re tempering valve manufacturer s instructions for Supplemental instructions for gas water heaters installed in potable water 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 Combination Potable Water and Space Heating Application Hot water t supply to Tee fitting must be installed as shown DO NOT use for space heating house This ensures that any air in the water lines application only 4q
16. 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 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 Union 6 Hot water outlet to X fixtures Water Heater Jacket Temperature and pressure relief valve Remote Control Factory Installed Option Manual gas shut off To gas supply Ground joint union Sediment trap Cap Thermostatic gas valve Jacket door Flammable Vapor Sensor Auxiliary catch pan Drain Pan Pipe to suitable drain Vent connector the water heater and 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 tan
17. due to operation in a corrosive atmosphere 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 heat traps 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 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 where the pressure is easily
18. heater Do not attempt to repair the unit It must be replaced OPERATING INSTRUCTIONS Stop Read the safety information above on this label Slide the ON OFF switch located on the gas valve to the OFF Position Toggle the ON OFF switch located on the blower assembly to the OFF position Turn off all electric power to the appliance Set the valve thermostat dial to LOW This appliance has an automatic spark ignition system DO NOT attempt to light the pilot by hand Wait five 5 minutes to clear out any gas If you smell gas stop Follow B in the safety information above on the label If you do not smell gas go to the next step Turn on electric power to the appliance Toggle the ON OFF switch located on the blower assembly to the ON position Slide the ON OFF switch located on the gas valve to the ON position Set the thermostat dial to the desired setting Iftheappliance will not operate follow the instructions TO TURN OFF GAS TO APPLIANCE and call your service technician or gas supplier TO TURN OFF GAS TO APPLIANCE Turn off all electric power to the appliance if service is to be performed Close manual gas shut off valve 32 Operating the water heater A CAUTION Hydrogen gas can be produced in a hot water system served by this water heater that has not been used for
19. 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 FOR YOUR SAFETY READ BEFORE OPERATING AA WARNING If you do not follow these instructions and use the Use amp Care Manual instructions exactly a fire or explosion may result causing property damage personal injury or loss of life This appliance is equipped with an ignition device which automatically lights the pilot DO NOT try to light the pilot 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 Donottry to light any appliance Donottouch any electric switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas suppliers instuctions fyoucannotreach your gas supplier call the fire department C Useonly your hand to turn the gas control knob Never use tools If the knob will not turn by hand do not try to repair it call a qualified service technician Force or attempted repair may result in fire or explosion Donotusethis appliance if any part has been under water Immediately call a qualified installer or service agency to replace a flooded water
20. rooms normally kept closed or in unprotected outdoor areas Minimum clearance from combustible construction 3 E 0 12 7 6 cm 2 5 cm 0cm 30 5 cm 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 Installing the water heater NOTICE The water heater should not be installed near an air supply containing halogenated hydrocarbons Inspect Shipment Inspect the water heater for possible damage Check the markings on the rating plate of the water heater to be certain the type of gas supplied corresponds to the water heater requirements 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 DO NOT block or obstruct any of the combustion
21. supply ae E Cs aA UJ 3 4 Shut Off Valve Typ A DOD Heat Tra Ko rD ap 3 T 2 Gallon Thermal gi e Expansion Tank a f if required not supplied with C water heater TS 7 a HWS amp HWR we io Heating Coil Hot water to space heater CT f Y xU Hot water coil All bronze pump Kon a VU ter Check valve internal in pump Air breed valve D l lier Sample Tap i Temperature and pressure relief valve discharge line Gas Control Thermostat 5 y Drain valve Ns HVAC Unit not supplied with water heater FAN ON Um Gas Fired COOL Water Heater Isolation valve in cold water return line from heating unit not supplied Z with water heater uH Gas Direct Vent discharge must comply with Local and State Codes Air Handler Electronically controlled pump timer Activates every 6 hours for 60 seconds Wire to bronze pump Vacuum Relief Valve Combustion Air Inlet Not Supplied Wan N s e y Openings LI If required install per local codes and valve manufacturer s instructions 6 Air Gap 3 1 WSS 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
22. to the bottom of the water heater or the area where the combustion air inlet openings and Flammable Vapor Sensor are located This area must be unobstructed so as not to restrict combustion air flow to the burner or operation of the sensor Inspect the insulation blanket frequently making certain it has not sagged and it is not restricting the air flow to the combustion air inlet openings perforation holes or the Flammable Vapor sensor located around the lower perimeter of the water heater jacket This could result in an unsafe operating condition Hot and Cold Pipe Insulation Installation Short Model Blower Shown Typical vertical piping arrangement For increased energy efficiency some water heaters have been supplied with two 24 sections of pipe insulation T amp P Insulation Installation Dilution Air Tall Model Blower Shown Intake Typical horizontal piping arrangement Please install the insulation according to the illustrations above that best meets your requirements 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 A Typical Side Connect T amp P Arrangement Slip the insulation cover over the T amp P Valve through the center hole and align the hole in the side with the opening of Typical Top Connect T amp P Arrangement the T amp P Valve Ensure the T amp P Valve o
23. will be purged through the domestic water E cele DANGER If this water heater is installed in an application intended to Hot water ADANGER When this system supply domestic hot water needs and supply to From HOT requires water for space heating at hot water for space heating purposes Meeting outleton elevated temperatures above 125 F DO NOT connect the heater to an uu water heater 52 C a mixing valve complying with existing heating unit or components of a n the Standard for Temperature Actuated heating system that have previously Tec fitting for vertical hot Mixing Valves for Hot Water been used with a non drinking water water supply lines Distribution Systems ASSE 1017 must system Toxic chemicals such as those Hot water From HOT pe installed in the hot water supply line used for boiler treatment may be supply to outlet On to the house in order to reduce the scald present and will contaminate the house water heater RE I Hot water supply to heating unit hazard potential drinking water supply causing possible M health risks Never introduce toxic A DANGER E Lag aus s chemicals such as those used for boiler treat t into thi tem heater in a combination potable and icm airs i ai space heating application must be Notice 50 0 maximum distance suitable for use with drinking water from water heater to fan coil NOTIC
24. 2 34 Care and Cleaning Vent System Inspection 36 Burner Inspection 36 Extended Shut Down 37 Troubleshooting Tips Before You Call Fair SSNWUGE cc scaosece 38 40 Customer Service PartSilel SUR ETE 41 ItevoumNecdiSenvicem snr 44 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 as an indication of Important Safety Information This symbol alerts you to potential hazards that can kill or hurt you and others This is the safety alert symbol Recognize this symbol All safety messages will follow the safety alert symbol and either the word DANGER WARNING CAUTION or NOTICE These words mean
25. 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 NOTICE This water heater is equipped with a flammable vapor sensor that will automatically shut down the water heater in the presence of gasoline vapors and some other flammable vapors If the flammable vapor sensor shuts down the water heater contact a qualified service technician Clear any hazardous materials and ventilate the area around the water heater DO NOT turn off the appliance or adjust the ON OFF switch in any way DO NOT tamper with the flammable vapor sensor Do not submerse the flammable vapor sensor in water DO NOT al
26. E Suitable for potable water developed length is required for Tee fitting for horizontal hot heating and space heating applications Massachusetts State water supply lines Typical Piping Diagram for Combination Potable Space Heating Installation Nominal 3 4 size mixing or tempering valve fer to warning above Follow mixing or installation of the valve Spring loaded check valve in heating unit ho water supply line and cold water return line not supplied with water heater NOTICE This check valve is inc t o orporated in some heating units Refer he installation instructions supplied with specific heating unit to determine if it is required Isolation valve in hot water supply line to heating unit not supplied with water Water Heater drain pan installed in accordance with the Local and State Code Water Heater to be in accordance with the Local and State Energy Code All water piping shall be insulated in a with Local and State Energy ode heater See diagrams above for proper pipe application for vertical or horizontal supply lines Temperature and Pressure Relief Valve tie to location approved by local code J Gas line to water heater __y Pressure Gauge 5 4 Check Valve with 1 8 Hole Minimum of 2 0 developed length of 3 4 pipe P g 3 4 Tempered Meier nor water 3 4 Shut Off Valve Typ Air vent Supp J 10 T06 ye Se 3 4 cold water
27. Eight Two Flash three second pause Temperature sensor fault detected Thermal well fault Check thermal well wiring con nection Replace thermal well Eight Three Flash three second pause Electronics fault de tected Thermal well fault or gas control fault Replace gas control valve Replace thermal well Eight Four Flash three second pause Valve fault detected Gas control valve needs to be reset or has been damaged Cycle power to gas control valve Replace gas control valve 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 remote control burners vent connectors or other safety devices Refer repairs to qualified service personnel 41 Replacement Parts For 40 and 50 gallon models using natural or LP gas Instructions For Placing a Parts Order All parts orders should include ACAUTION For your safety DO 4 The model and serial number of the NOT attempt repair of gas piping gas water heater from the rating plate control thermostat burners vent connectors or other safety devices Refer repairs to qualified service personnel 2 Specify type of gas natural or LP as marke
28. F Clearance to outside come G Clearance to inside comer H Clearance to each side of centerline extended above meter regulator assembly I Clearance to service regulator vent outlet J Clearance to nonmechanical air supply in 4 ft 1 2 m below or to side of opening 1 ft 30 cm above let to building or the combustion air inlet opening to any other appliance K Clearance to a mechanical air supply 3 ft 91 cm above if within 10 ft 3 m horizontally inlet L Clearance above paved sidewalk or paved driveway located on public prop erty M Clearance under veranda porch deck or balcony 1 In accordance with the current ANSI Z223 1 NFPA 54 National Fuel Gas Code For clearances not specified in ANSI Z223 1 NFPA 54 the following statement shall be included Clearance in accordance with local installation codes and the requirements of the gas supplier and the manfacture s installation instructions 13 Installing the water heater Vent Pipe Materials NOTICE This unit can be vented using only DO NOT mix ABS pipe and fittings with PVC the following recommended pipe material or CPVC pipe fittings Note It 1s acceptable to Use only 2 or 3 inch diameter pipe interchange PVC and CPVC pipe and fittings PVC Schedule 40 ASTM D1785 NOTE This water heater may be installed in attics provided ambient temperatures do not CPVC Schedule 0 AS ee exceed 125 F 52 C and CPVC or ABS pipe ABS
29. PROPER OPERATION AFTER SERVICING 21 Installing the water heater Diagram With Optional Electronic Display CONNECTION DIAGRAM SCHEMATIC H N PRESSURE A 120 VAC INDUCER BL Z BLUE G GREEN RED W WHITE Y YELLOW TELAM 1 i vor 2 L3 TEMPERATURE 4 SWITCH L5 Q ps 3x2 CONNECTOR P3 Ts1 1 2 uM B TS2 al o tc E FV TIM O P2 u gt k g 2 g eHe g 2 z 2 2 2 E c E gt BK 3 z E1 t o Y i 3x2 CONNECTOR NN SPARK PRINTED TC Pu e amp BOX FIELD m TSTAT CONNECTIONS nou DISPLAY ACAUTION Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and dangerous operation VERIFY PROPER OPERATION AFTER SERVICING 22 WARNING If local codes require external application of insulation blanket kits the manufacturer s instructions included with the kit must be carefully followed NOTICE If pipe insulation is used ensure that the thickness does not exceed 77 Insulation thicker than can interfere with the Blower Assembly Dilution Air Holes Insulation Blankets Insulation blankets available to the general public for external use on gas water heaters are not necessary The purpo
30. TANT SAFETY INFORMATION READ ALL INSTRUCTIONS BEFORE USING A WARNING 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 1f 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 fails 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 refer
31. Use amp Care Manual With Installation Instructions for the Installer Residential Gas FVIR Certified PowerVent Water Heaters Residential 40 And 50 Gallon 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 very important 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 assistance 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 Model on Right Shown With Factory Installed Optional Digital Display California Proposition 65 Warning This product contains chemicals known to the State of California to cause cancer birth defects or other repro
32. air inlet openings located around the perimeter of the water heater 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 DO NOT obstruct or block the Flammable Vapor Sensor 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 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 will shorten the life of any gas burning appliance 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 e
33. and cleaner must be used for the type of vent pipe used PVC CPVC or ABS 20 Cementing Joints All joints in the vent piping must be properly sealed and the following materials are recommended PVC materials should use ASTM D2564 grade cement CPVC materials should use ASTM F493 grade cement ABS materials should use ASTM D2235 grade cement Cleaner Primer and Medium Body Solvent Cement 4 Cut pipe end square remove jagged edges and burrs Chamfer end of pipe then clean fitting socket and pipe joint area of all dirt grease or moisture 2 After checking pipe and socket for proper fit wipe socket and pipe with cleaner primer Apply a liberal coat of primer to inside surface of socket and outside of pipe DO NOT allow primer to dry before applying cement 3 Apply a thin coat of cement evenly in the socket Quickly apply a heavy coat of cement to the pipe end and insert pipe into fitting with a slight twisting motion until it bottoms out NOTICE Cement must be fluid if not recoat 4 Hold the pipe fitting for 30 seconds to prevent the tapered socket from pushing the pipe out of the fitting 5 Wipe all excess cement from the joint with a rag Allow 15 minutes before handling Cure time will vary according to fit temperature and humidity NOTICE Stir the solvent cement frequently while using Use a natural bristle brush or the dauber supplied with the can The proper brush size is one
34. annually to be certain it is clean by removing the blower assembly and flue baffle When reinstalling the flue baffle make certain it is hung securely by its hanger at the top of the flue way Reinstall the blower assembly Inspect plastic vent pipe Make certain that all joints are secure and that vent pipe supports are all in place Check the outdoor vent terminal to see that it is free of obstructions and that there is no damage nearby caused by condensate Burner Inspection Visually inspect the pilot flame and main burner annually Through the sight glass inspect the pilot and burner lighting If any unusual pilot or burner operation is noted the water heater should be shut off until qualified service assistance can be obtained openings and any obstruction DO NOT obstruct or block the Flammable Vapor Sensor The sensor does not require any maintenance or cleaning DO NOT expose to cleaning agents Inspect dilution air holes Make certain no blockage exists Clean any lint dirt or oil accumulation that may exist Test for spillage at the dilution air holes after 5 minutes of burner operation Place a blown out match or candle close to the dilution are holes The smoke from the candle or match should be drawn into the dilution air holes If the smoke is pushed away from the dilution air holes the blower or vent system may be blocked Contact qualified service personnel CAUTION For your safety
35. ater To unlock the display hold down the UP and DOWN arrow buttons until the lock icon flashes and disappears The display can now be adjusted The display will automatically relock if no button presses are detected within a 60 second period Est Hot Very Hot Water c r CAUTION Risk of Scalding Increases wit hH wW Est Hot Water k S Done Button Display Temperature Setting Limits The user display setpoint temperature cannot exceed The water heater gas valve knob below is set to HOT maximum water heater valve setpoint temperature therefore the user display shows Hot as the maximum at any time Max Setting icon appears when the user available setpoint The customer in this example has display setpoint exceeds the water heater gas valve chosen to set the temperature to Hot When the user knob setpoint display is set to the maximum available setpoint the Max Setting message will appear on the user display EN Low ls Max Setting Water Heater Gas Valve User Display The water heater gas valve knob below is set to VERY Low and Hot With this gas valve knob setting the full HOT therefore the user display shows Very Hot as range of temperature setpoints is available at the user the maximum available setpoint The customer in this display example has chosen to set the temperature between See Figure on left below User Display Water Heater Gas Valve 2I Water Heater Optional Use
36. ck gas supply Replace pilot Pressure switch wiring incorrect Replace pressure switch Air intake or exhaust obstructed Replace blower temperature switch Replace blower Check for vent termination compli ance as stated in this manual Six Three Flash three second pause Recycle limit flame lost Pilot tube restriction low gas supply pressure carbon buildup on electrode wire pilot tube damage or combustion air port blockage Gas supply pressure is low Jacket air holes obstructed Pilot replacement Six Four Flash three second pause Soft Lockout flame out of sequence sensed Valve stuck in open position Replace gas valve control Six Five Flash three second pause Failed Ignition Lockout Insufficient gas supply pilot damage or gas valve damage Check gas supply Replace pilot Replace gas valve Seven Flash three second pause Flammable vapor sen sor lockout Gasoline or other flammable gas was detected near the appliance or the sensor has failed Verify no gasoline or flammable vapors are present Reset control using ON OFF switch on the gas control valve Replace the flammable vapor sensor Eight One Flash three second pause FVS fault detected Flammable vapor sensor resistance is out of range wiring to FV sensor is faulty or control is faulty Replace FV sensor Replace FV sensor wiring Replace gas control valve
37. d from the factory The recommended starting point temperature is 120 F Water temperatures above 125 F can cause severe burns or death from scalding Be sure to read and follow the warnings switch is in the ON position The blower will start and within seconds the pilot will light followed by the main burner 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 outlined in this manual and on the label located on the water heater near the gas control thermostat Mixing valves are recommended for reducing point of use water temperature by mixing hot and cold water in branch water lines It is recommended that a mixing valve complying with the Standard for Temperature Actuated Mixing Valves for Hot Water Distribution Systems ASSE 1017 be installed See page 4 for more details and 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 proper water temperature for your home 33 Operating the water heater Lo 34 Water Temperature Setting The following is additional information which aid in determining a safe working temperature to meet each household need Maxi
38. d in User Display Mounting Kit Wire should pass through display wall plate opening GO TO STEP 26 Remote mounting will not require the Display to Heater Bracket or Display Mounting Tape The bracket may be kept for future use or recycled Choose mounting location and route thermostat wire to this location Separate wall plate from the User Display by removing battery cover and carefully pull wall plate from display Replace battery cover Pass thermostat wire through wire hole in wall plate Use mounting holes on wall plate to mark wall hole locations Drill 3 16 holes and install wall anchors if required Use two 6 x 1 Type A screws provided in the User Display box to attach wall plate to surface Connect thermostat wire to wall plate as follows Top Terminal GREEN Data Communication Middle Terminal RED Power Bottom Terminal WHITE Common Attach Thermostat Display to wall plate ATTENTION Leave peel off screen protector on the User Display for customer to review and remove Connect power to water heater Turn on water heater and allow to heat Check thermostat display for proper display and function Max Setpoint Setpoint T tu etpoint Temperature Temperature Lefi Right Keys Vacation Mode 25 Water Heater Optional User Display Operation Instructions Display Temperature Setting Limits After power on all segments on the LCD will be displayed for 2 seco
39. d on the rating plate 3 Part description as noted below and number of parts desired 4 Refer to page 44 E Heat Trap Nipple Burner Assembly Kit Use only original equipment replacement parts Rubber Coupling Blower Assembly Appearance may differ 2 Heat Flue baffle and hanger Trap d Nipple H Dip tube Temperature and pressure relief valve The kit provides extra speed clips and tamper resistant screws May differ in actual appearance Drain valve Gas Control Thermostat Flammable Vapor Sensor Burner Access Door Gasket Burner orifice J gniter T T um Combustion Shut off Device enlarged view i Burtier Access Door Grommet Located inside the combustion chamber Burner Access Door 42 Notes 43 IF YOU NEED SERVICE 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 Should your problem not be solved to your complete satisfaction you should then contact the Manufacturer s National Service Department at the following address 1241 Carwood Court Montg
40. ductive 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 DO NOT store or use gasoline or other If you cannot reach your gas supplier call the flammable vapors or liquids or other fire department combustible materials in the vicinity of this or any other appliance To do so may result in an explosion or fire DO NOT return to your home until authorized by the gas supplier or fire department Improper installation adjustment alteration WHAT TO DO IF YOU SMELL GAS service or maintenance can cause property DO NOT try to light any appliance damage personal injury or death Refer to CN 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 Printed in USA Game o AP16882 06 13 Safety Information Safety Precautions 3 6 IFDiGiasslvfodcl PP 5 Installation Instructions ocat omt RE T Water Supply Connections 9 GOS SUDDIV EP EET TIT 11 WENNER oo e 12 19 Wiring Diagram 20 21 Ripe instil atone eee eee 22 Potable Space Heating 30 Operating Instructions Lighting Instructions 31 Water Temperature 3
41. e 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 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 the tank If allowed to accumulate these solids can cover the gas control thermostat sensors causing the sensors to operate erratically Because accumulated solids can prevent the gas control thermostat sensors from accurately reading the water temperature the water at the fixture can be hotter than the gas control thermostat setting It is suggested that a few quarts of water be drained from the 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 annua
42. eds Yellow flame or Scale on top of the burner Contact a qualified service technician to remove soot scale Flue or Combustion air inlet Remove obstruction or debris from flue or com openings are restricted bustion air inlet openings on water heater jacket Not enough combustion or Proper operation of the water heater requires ventilation air supplied to the air for combustion and ventilation See the water heater location Combustion and Ventilation Air information in the Installing The Water Heater section of this manual Unable to light the Contact a qualified service technician to purge Air in gas line main burner the air from the gas line Blocked Exhaust Contact a qualified service technician to evaluate vent pipe for blockage Pressure Switch Nake pute the pressure switch hose is not kinked Wire Connection not fully se Contact a qualified service technician to confirm cured wire connections Combustion Shut off Device Combustion shut off device should be inspected tripped by a qualified service technician Gas Control Problem Contact a qualified service technician Main burner does not Combustion Shutoff Device The combustion shutoff device should be stay lit Tripped inspected by a qualified service technician CAUTION For your safety DO NOT attempt repair of gas piping gas control thermostat burners vent connectors or y y other safety devices Refer repairs to qualified service personnel
43. emperature 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 1 1 1 1 1 D 1 1 1 1 130 F 120 F HOT Ero E E 140 F 150 F 160 F NOTICE DO NOT use this appli ance 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 re pair the unit It must be replaced The gas control thermostat is constructed with with a gas shut off device that will shut off the exceeds normal operating temperatures Refer to the Before You Call For Service section of this 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 Sequence of Operation 1 During initial start up or a call for heat the control will verify the vacuum switch is open 2 Once the control verifies the blower vacuum switch is open the control will energize the blower motor for the pre purge sequence approximately 5 seconds 3 The control will verif
44. ern the installation of relief valves A WARNING 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 10 Relief Valve The pressure rating of the relief valve must not exceed 150 PSI the maximum working pressure of the water heater as marked on the rating plate The Btuh rating of the relief valve must equal or exceed the Btuh input of the water heater as marked on its rating plate 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 might 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
45. g of The Water Heater section of this manual Make sure all faucets are closed Refer to gas valve error code table on page 40 Turn ON Plug in Verify power supply 120VAC 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 gas control thermostat 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 gas control thermostat burners vent connectors or other safety devices Refer repairs to qualified service personnel 40 Gas Valve LED Codes LCD CODE For Optional Display Short flash once None every four seconds IDLE no call for heat no fault conditions Temperature setpoint achieved and burner is off dc STATUS PROBLEM PROBABLE CAUSE SOLUTION No solution required Heartbeat alter Plone nates bright dim One Flash three 12 second pause Call For Heat no fault conditions Low flame signal control continues to operate Water temperature is below setpoint and burner is on Pilot tube restriction carbon buildup on electrode pilot wire damage or gas sup
46. he 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 water heater must be centered in the catch pan The catch 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 1s 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 any of the combustion air inlet openings located around the perimeter of the water heater A minimum of 1 is required between these combustion air inlet openings and any obstruction DO NOT obstruct or block the Flammable Vapor Sensor Because of natural air movement in a
47. imum vent lengths listed on page 15 for the model numbers listed below 43VPA0S P E2 E PVP40S P E2 E 6GR40SPVE2 Vent Restrictor Vent Terminal 43VP50S P E2 E PVPSOS P E2 E 6GR50SPVE2 DO NOT use the vent restrictor for any other vent lengths or on tall models Additional PVC Fittings Considerations Do Not Use Good Best Short Sweep 90 Elbow Standard 90 Elbow Long Sweep 90 Elbow 17 Installing the water heater NOTICE All pipe fittings solvent cement primers and procedures must conform to American National Standards Institute and American Society for Testing and Materials ANSI ASTM standards Electric Fresh meter 18 air T intake l t 3 above QT if within 10 4 12 Above grade snow level window or vent Rising moisture will collect under eaves I I If soffit vent is too close block off and install new vent at 6 another location Inside Caulk 6 1 83 m 6 caulk zone zone or to edge of window etc starting within 6 Caulk 2 ft sq sheet metal plate on brick or masonry
48. 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 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 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 IMPOR
49. ion 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 Before You Call For Service 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 What To Do Condensation This usually happens when a new This is normal After the water in the tank water heater is filled for the first warmsup the condensation will disappear If time however the condition persists examine the piping and fittings for possible leaks Troubleshooting Tips 2 Save time and money Review the charts on the following pages first and you may not need to call Moisture from the products of This is normal and will disappear in time combustion condensing on the Excessive condensation can cause main burner tank surface outage An undersized water heater will Use a water heater size that meets the cause condensation requirements of your ne
50. k 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 contractor 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 3 4 NPT on all models Install a shut off valve in the cold water line near the water heater 1 4 per foot maximum slope up or own for horizontal venting Anode Blower assembly Transformer Box Remote Control Models Only Union Heat trap 6 minimum supply Shut off valve Thermal expansion tank if required Relief valve discharge line to suitable open drain Combustion Air Inlet Openings Air gap G Installing the water heater 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 gov
51. l Screen Inside Terminal Elbow Short Piece of Vent Pipe Vent Pipe Through Roof Vertical Vent 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 blower outlet Support vertical or horizontal lengths as previously mentioned Install adequate flashing where the vent pipe passes through the roof Horizontal Vent Installation Once the vent terminal location has been determined make a hole through the exterior wall to accommodate the vent pipe Vent pipe must exit exterior wall horizontally only Insert a small length of vent pipe through the wall and connect the coupling as shown to the left Place the 1 2 mesh metal screen inside the terminal fitting and connect it as shown to the vent pipe on the exterior of the building Complete the rest of the vent pipe installation to the water heater s vent connector fitting on the blower outlet If necessary support horizontal run as previously mentioned Vertical Vent Termination Location The location of the vent terminal depends on the following minimum clearances and considerations see illustration Minimum twelve 12 inches above roof Minimum twelve 12 inches above anticipated snow level Maximum twenty four 24 inches above roof level without additi
52. lly 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 DANGER 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 hazardous conditions A DANGER Combustible materials such as clothing cleaning materials or flammable liquids etc must not be placed against or next to the water heater Dilution Air Inlet Tall Models Blower Assembly Dilution Air Holes Short Models Proper burner flame pattern Housekeeping Visually inspect the pilot To ensure sufficient ventilation and combustion air supply proper clearances must be maintained When installed in a closet DO NOT block or obstruct any of the combustion air inlet openings located around the perimeter of the water heater A minimum of 1 is required between these combustion air inlet Venting System Inspection The water heater s internal flue must be inspected
53. low the flammable vapor sensor to come into contact with any substances such as bleach or cleaners See the Gas Valve LED Error Code Section of this manual for a list of error codes ADANGER INSTALL THE BLOWER ASSEMBLY AND PROPERLY VENT A THE WATER HEATER Failure to install the blower assembly 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 the 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 A 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
54. ls and under eaves do not locate vent terminal on the side of a building with prevailing winter winds When terminating the vent pipe through brick or masonry surfaces a rust resistant sheet metal backing plate behind the vent termination is recommended See illustration DO NOT locate vent terminal too close to shrubbery as flue gasses may damage them Caulk all cracks seams and joints within six 6 feet of vent terminal All painted surfaces should be primed to lessen the chance of physical damage Painted surfaces will require maintenance Insulate vent pipe exposed to cold conditions attics crawl spaces etc with inflammable material to help prevent moisture from accumulating in vent pipe DO NOT extend exposed vent pipe outside of building 9 If other vent terminal configurations are required See If You Need Service section NOTICE All pipe fittings solvent cement primers and procedures must conform to American National Standards Institute and American Society for Testing and Materials ANSI ASTM standards From Water Heater VES TOAST eMe n Se Dy c 2 x 2 Sheet Metal Shieldon Brick or Masonry Walls Vent Terminal with Mesh Protective Screen Inside Outside of Building Wall Insert 1 2 Mesh Protective Min 12 Above Roof Min 12 Above Anticipated Snow Level Max 24 Above Roof Without Additional Support Vent Termina
55. luding those owned or operated by the Commonwealth and where the side wall exhaust vent termination is less than seven 7 feet above finished grade in the area of the venting including but not limited to decks and porches the following requirements shall be satisfied 1 INSTALLATION OF CARBON MONOXIDE DETECTORS At the time of installation of the side wall horizontal vented gas fueled equipment the installing plumber or gasfitter shall observe that a hard wired carbon monox ide detector with an alarm and battery back up is installed on the floor level where the gas equipment is to be installed In addition the installing plumber or gasfitter shall observe that a battery operated or hard wired carbon monox ide detector with an alarm is installed on each additional level of the dwell ing building or structure served by the side wall horizontal vented gas fueled equipment It shall be the responsibility of the property owner to secure the services of qualified licensed professionals for the installation of hard wired carbon monoxide detectors a In the event that the side wall horizontally vented gas fueled equipment is installed in a crawl space or an attic the hard wired carbon monoxide detector with alarm and battery back up may be installed on the next adjacent floor level b In the event that the requirements of this subdivision can not be met at the time of completion of installation the owner shall have a period of thirty 30 days to
56. m for any signs of cracks or fractures particularly at the joints between elbows or other fittings and the straight length of vent pipe 3 Check the system for signs of sagging or other stresses in the joints as a result of misalignment of any components in the system If any of these conditions are found they must be corrected in accordance with the venting instructions in this manual before completing the installation and putting the water heater into service NOTICE The vent piping must be connected to the blower assembly using the rubber coupling and supplied clamps The vent pipe connections at the blower assembly must be leak tested with soap and water solution upon initial startup Repair any leaks before allowing the water heater to operate Additional installation information for The Commonwealth of Massachusetts is located on the back page of this manual NN LLLA LZ Vent Terminal Air Supply Inlet Area Where Terminal Is Not Permitted US Installations A Clearance above grade veranda porch 12 in 30 cm deck or balcony B Clearance to window or door that may be 4 ft 1 2 m below or to side of opening 1 ft 300 m above opened opening C Clearance to permanately closed window D Vertical clearance to ventilated soffit located above the terminal within a hori zontal distance of 2 feet 61 cm from the center line of the terminal E Clearance to unventilated soft
57. mum 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 If an adjust ment to the water temperature 1s preferred then refer to the Water Heater User Display Opera tion Instructions for instruction on adjusting the local and remote user display temperature setpoints A condition known as stacking or layering can occur when a series of short and frequent hot a built in safety shut off device designed to shut off the gas supply to the burner if the main burner is extinguished for any reason The gas control thermostat is also equipped gas supply to the burner if the water heater manual or contact your dealer A WARNING Should overheating occur or the gas supply fail to shut off turn off the manual gas control valve to the appliance water draws are taken The hottest temperature water 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 If the water heater has been subjected to fire flood or physical damage turn off the manual gas control shut off valve and do not operate the water heater again until it has been checked by a qualified service technician tank near the gas control thermostat Therefore always remember to test the water t
58. n of this water heater DO DON T C DO check inlet gas pressure to ensure C DON T block or restrict Combustion that it is within the range specified on Air Inlet Openings or the Flammable the rating plate Vapor Sensor located around the lower EDO provide adeoque fs portion of the water heater jacket combustion and ventilation as discussed in the Use and Care Manual and the National Fuel Gas Code DON T block or restrict the Blower Assembly Dilution Air holes see diagram to the left Dilution Air Inlet CL DO maintain proper clearances to Tall Models combustibles as specified on the rating L DON T remove the Burner Access plate Door unless absolutely necessary s This should only be done by a U DO allow enough time for joint qualified service technician A new burner access door gasket must be installed on any burner access door cement vapors to dissipate BEFORE applying power to the water heater that has been removed CL DO ensure that the venting system complies with the guidelines found in C DON T install this water heater where the Use and Care Manual and National standing water may occur The base Fuel Gas Code of the water heater is meant to be CL DO contact a qualified service mounted on a dry surface technician if the main burner will not stay lit The burner chamber is L DON T allow cleaners solvents or designed to be sealed utilizing a gasket other materials to come into con
59. nces in the vicinity should be shut off including their pilot burners to avoid vapors lighting NOTICE Flammable vapors can be drawn by air currents from surrounding areas to the water fF 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 heater is equipped with an electronically lit pilot to light the main burner The pilot is automatically lit each time there is a demand for heating the water On initial start up it is recommended that the outer door be removed leave inner door in place for safety to determine if the pilot and main burner are operating properly Once filled with water it is necessary to plug the power cord in and make sure the ON OFF switch located on the blower assembly is in the ON position and the gas control Water Temperature Setting The temperature of the water in the water heater can be regulated by turning the knob on the front of the gas control thermostat Safety and energy conservation are factors to be considered when selecting the water temperature setting of the water heater s gas control thermostat s The lower the temperature setting the greater the savings in energy and operating costs To comply with safety regulations the gas control thermostat was set at 120 F before the water heater was shippe
60. nclosure but not less than 100 square inches if each opening communicates with other unconfined areas inside 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 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
61. nds See Diagram A followed by software revision shown for 2 seconds See Diagram B CAUTION Risk of Scalding Increases with Hotter Water SERVICE Very Hot NEEDED Error 88 8 Est Hot Water P EC oN EN HI DEMAND mm Low L Max Setting Clear Mode Diagram A 25 aa 2 E Diagram B Display Temperature Setting Water heater setpoint temperature is shown using vertical bars on the display The more bars shown the higher the setpoint temperature Use the UP or DOWN arrows to se lect the desired setpoint temperature The top bar indicates the water heater setpoint The picture to the right shows a setpoint of A Notice When the temperature is set above HOT the display will show the Risk of Scalding Caution When the desired setpoint is shown on the display press the Done button below the display The user display will then lock to prevent accidental adjustments 26 User Mode is entered after all required data is received from the appliance when powered up The display shows temperature setpoint estimated amount of hot water and maximum temperature setpoint Heat symbol is turned on when heating cycle is active Scald warning starts flashing whenever the adjusted setpoint exceeds the Hot setting and becomes solid after 30 seconds of flashing Unlocking the User Display The user display includes a display lock that will prevent accidental adjustments to the water he
62. ng building or struc ture used in whole or in part for residential purposes c MANUFACTURER REQUIREMENTS GAS EQUIPMENT VENTING SYSTEM PROVIDED When the manufacturer of Product Approved side wall horizontally vented gas equipment provides a venting system design or venting system components with the equipment the instructions provided by the manufacturer for installation of the equipment and the venting system shall include 1 Detailed instructions for the installation of the venting system design or the venting system components and 2 A complete parts list for the venting system design or venting system d MANUFACTURER REQUIREMENTS GAS EQUIPMENT VENT ING SYSTEM NOT PROVIDED When the manufacturer of a Product Ap proved side wall horizontally vented gas fueled equipment does not provide the parts for venting the flue gases but identifies special venting systems the following requirements shall be satisfied by the manufacturer 1 The referenced special venting system instructions shall be included with the appliance or equipment installation instructions and 2 The special venting systems shall be Product Approved by the Board and the instructions for that system shall include a parts list and detailed installation instructions e A copy of all installation instructions for all Product Approved side wall horizontally vented gas fueled equipment all venting instructions all parts lists for venting instructions and or
63. nt termination The blower pipe coupling features a capped drain port which is not needed in this case A CAUTION Make sure drain port cap is securely in place Slope Away lt Drain Port with Cap Figure 1 There are vent piping configurations when combined with certain environmental conditions that can produce enough condensate to require collection and disposal When a slope away from the water heater cannot be achieved and condensate handling is required in a horizontal vent system the vent pipe should be sloped toward the water heater as shown in Figure 2 NOTICE Vent Slope Toward Za riser fittings and pipe must be included in the total vent length calcula tion as described in the manual Pai Drain Port I To Drain igure 2 Remove drain port cap Connect flexible condensate drain tube to the blower drain port Loop the drain tube so that it has a circular trap See Figure 3 e Secure the top and bottom of the loop with wire ties or plastic zip ties as shown e DO NOT restrict any portion of the circular drain tube Loop must be smooth and not collapse the tube e Fill circular drain tube with water to make sure combustion gases cannot vent into the room Condensation collected must be discharged per local codes e DO NOT drain over public way or walkway e Refer to local codes for any condensate requirements From Drain Port Water Filled
64. o a suitable drain to prevent injury or damage Before turning off the cold water supply to the water heater open a hot water faucet allowing sufficient cold water into the tank to prevent the risk of a scald injury while draining the water heater Once the water in the tank is no longer hot turn off the cold water supply to the water heater 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 Inspect plastic vent pipe Make certain that all joints are secure and that vent pipe supports are all in place Check the outdoor vent terminal to see that it is free of obstructions and that there is no damage nearby caused by condensate Inspect dilution air inlet and combustion air inlet openings Make certain no blockage exists Clean any lint dirt or oil accumulation that may exist At least once a year lift and release the lever handl
65. of Mounting Bracket Water Heater Mounting Braket for Display 10 The Water Heater Mounting Bracket features a wiring slot on the top flange and an opening for the wire Pass the thermostat wire though the Water Heater Mounting Bracket opening Clean any dust or dirt from water heater jacket to allow proper tape adhesion Remove tape backing and carefully attach to the heater jacket above the Rheem logo Allow the thermostat wire to be positioned in the wire slot located on the bracket top flange The User Display will be mounted to the plastic Water Heater Mounting Bracket Separate wall plate from the User Display by removing battery cover and carefully pull wall plate from display Water Heater Mounting Bracket User Display Mounting Bracket Display NOTICE The battery backup option is not available on this model User Display Features Your water heater includes a user display for easy local or remote water heater programming The user display features Water heater temperature setpoint control Large clear backlit display is easy to read even in the dark Displays relative available hot water Service needed indicator Heat Indication 15 16 17 18 19 20 21 22 23 24 23 26 27 28 29 30 Hot Water Availability Replace battery cover Attach display wall plate to heater bracket using the two 6 x 4 Type A screws provide
66. omery Alabama 36117 Phone 1 866 279 4566 When contacting the manufacturer the following information will be requested monn oe g Model and serial number of the water heater as shown on the rating plate attached to the jacket of the heater Address where the water heater is located and physical location Name and address of installer and any service agency who performed service on the water heater Date of original installation and dates any service work was performed Details of the problems as you can best describe them List of people with dates who have been contacted regarding your problem important Instructions for the Commonwealth of Massachusetts The Commonwealth of Massachusetts requires compliance with regulation 5 08 Modifications to NFPA 54 Chapter 10 248 CMR 4 00 and 5 00 for installation of through the wall vented gas appliances as follows 1 Revise NFPA 54 section 10 5 4 2 by adding a second exception as fol lows Existing chimneys shall be permitted to have their use continued when a gas conversion burner is installed and shall be equipped with a manually reset device that will automatically shut off the gas to the burner in the event of a sustained back draft 2 Revise 10 8 3 by adding the following additional requirements a For all side wall horizontally vented gas fueled equipment installed in every dwelling building or structure used in whole or in part for residential purposes inc
67. onal support for vent Four 4 feet from any gable dormer or other roof structure with building interior access i e vent window etc Ten 10 feet from any forced air inlet to the building Any fresh or make up air inlet such as a dryer or furnace area is considered to be a forced air inlet Determine the vent terminal height and cut vent pipe accordingly Refer to the above section for proper vent terminal height Connect vent elbow onto vertical pipe through roof Connect short piece of vent pipe approximately 3 long to elbow then insert 1 2 mesh metal screen into terminal elbow and join it to the short piece of vent pipe 19 Installing the water heater NOTICE All pipe fittings solvent cement primers and procedures must conform to American National Standards Institute and American Society for Testing and Materials ANSI ASTM standards WARNING DANGER OF FIRE OR BODILY INJURY Solvent cements and primers are highly flammable Provide adequate ventilation and DO NOT assemble near heat source or open flame DO NOT smoke Avoid skin or eye contact Observe all cautions and warnings on material containers A CAUTION For proper installation DO NOT use solvent cement that has become curdled lumpy or thickened DO NOT thin solvent cement Observe shelf precautions printed on the containers For applications below 32 F use only low temperature type solvent cement Appropriate solvent
68. or to shut down the water heater Vapors of Gasoline Vapors of certain flammable paints stains and thinners Vapors of vent pipe Cement amp Solvents Bleach direct contact with flammable vapor sensor Some other flammable materials and their vapors If the flammable vapor 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 WARNING on page 3 for additional information 35 Care and cleaning of the water heater A DANGER 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 DANGER Hotter water increases the potential for Hot Water Scalds Dilution Air Inlet Tall Models Blower Assembly Dilution Air Holes Short Models 36 Draining the Water Heater A CAUTION Shut off gas to the water heater at the gas control thermostat gas cock or manual shut off valve before draining water A DANGER 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 t
69. osure to the top pan Position the enclosure so the terminal strip opening is visible from the front of the water heater Secure enclosure to top pan with screws provided in the User Display Mounting Kit without pinching any wires 24 Mounting Holes for Transformer Determine where the User Display will be located The display can be attached to the water heater jacket with supplied Water Heater Mounting Bracket or mounted remotely to a wall via the wall plate up to 100 feet away using 18 AWG solid copper thermostat wire Any installation location over 12 feet from the water heater will require additional thermostat wire Not supplied If remote mounting go to step 19 Cut enough thermostat wire from the 12 feet provided to connect the front mounted display to the Transformer Enclosure located on the top pan Strip 4 insulation from the 3 wires on both ends The wire provided is standard 3 wire with the colors GREEN RED and WHITE Connect one end of the wire to the Transformer Enclosure spring terminal strip From left to right colors shall be GREEN RED WHITE Wires should easily insert into the terminal strip If required for wire insertion or removal use small flat blade screw driver to press the tab located below each wire hole Remove two strips of Display Mounting Tape and attach to the inside flanges of the Water Heater Mounting Bracket Display Mounting Tape Strips Flange
70. pening is not obstructed by the insulation 23 Installing the Optional User Display The following instructions apply only to water NOTICE DO NOT over tighten to avoid cracking plastic enclosure heater models factory supplied with the electronic display option IMPORTANT NOTICE This electronic display cannot be added to a water heater not supplied from the factory with an electronic display Components supplied with user display models a Optional Water Heater Mounting Bracket AP14752 b 12 feet 18 AWG Thermostat Wire AP14820 c Optional Mounting Tape AP14819 d Transformer Enclosure AP14875 e Screw 8 x 2 Self Drilling Qty 2 AP5925GS f User Display AP14697 Installation Instructions A CAUTION Turn the switch on the blower to the off position and disconnect power to the water heater before proceeding 1 Locate the electrical connection for the Transformer Enclosure on the top of the water heater This electrical connection features a white 6 pin plug and white heat shrink Blower may be different in appearance Transformer d Pin Plug 2 The Transformer Enclosure features a 6 pin connection located on the circuit board inside the enclosure Attach the top pan harness connector to this 6 pin connector in the correct orientation Six 6 Pin Connection for to Circuit Board 3 Locate the two screw pilot holes on the water heater top to attach the Transformer Encl
71. ply No solution required Gas supply pressure is low Low voltage supply Pilot replacement Two Flash three second pause Pressure switch failed closed Pressure switch tube blockage or faulty pressure switch Pressure switch wiring incorrect Replace pressure switch Replace tube or clear blockage Three Flash three second pause Pressure switch failed open Vent blockage or improper installation switch tube blockage faulty switch blower improper operation or tempera ture switch open Pressure switch wiring incorrect Replace pressure switch Air intake or exhaust obstructed Replace blower temperature switch Replace blower Four Flash three second pause TCO limit lockout Thermal well fault gas control fault or tank is not filled with water Reset valve and check for proper valve cycling Make sure tank is full of water Five Flash three second pause Flame out of sequence Pilot or burner valve has failed open Replace gas valve control Six One Flash three second pause Six Two Flash three second pause Failed trial for ignition Recycle limit PS limit opened Insufficient gas supply unstable pilot carbon buildup on electrode or wire pilot tube damage Vent blockage or improper installation switch tube blockage faulty switch blower improper operation blower tem perature switch open or excessive wind at vent termination Che
72. r Display Operation Instructions Estimated Hot Water Three bars shown on the user display are an estimate of hot water available relative to the temperature setpoint The chart below describes what each symbol means Tank is full of hot water Two thirds of the tank volume available One third of the tank volume available No hot water available Vacation Mode The user display features a vacation mode which sets the water heater temperature to Low The user display toggles between On and Vacation Modes when Mode key is pressed Note that the Estimated Hot Water symbol shows no hot water available when in VAC mode To return the water heater to normal ON mode unlock the display and press the Mode button Est Hot Very Hot Water 28 Error Display When an error message is received from the water heater the SERVICE NEEDED icon flashes See the screen example below Call your water heater contractor Est Hot Service Water Needed Installing the water heater continued Heat Traps For increased energy efficiency some water These heat traps may require a minimum of heaters have been supplied with factory one 1 90 3 4 NPT elbow and may require installed 3 4 NPT heat traps in the hot outlet an additional 90 3 4 NPT elbow or a 3 4 line and cold water inlet line coupling depending on your installation needs See Illustration of nipples and heat traps on page 41 During Installatio
73. red 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 Mr READ AND FOLLOW THIS SAFETY INFORMATION B CAREFULLY 7 N 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 Combustion Air Inlet Openings 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 catch pan to obstruct the flammable vapor sensor NOTICE DO NOT allow the flammable vapor sensor to become submerged in water Make sure the catch pan is properly drained 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 t
74. room or other enclosed space 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 pilot or 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 stand in accordance with the National Fuel Gas Code NFPA 54 ANSI Z223 1 2006 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 We recommend this water heater be installed in locations where the ambient temperatures do not exceed 100 F 38 C IMPORTANT DO NOT install the water heater in a location where it may be subjected to ambient temperatures exceeding 125 F 52 C The water heater should be installed so as to minimize the length of plastic vent pipe and the number of vent connection fittings required Refer to the INSTALLATION Section of this manual 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
75. se instructions DO NOT connect this water heater to an existing vent or chimney it must be vented separately from all other appliances The unit may be vented horizontally through a wall or vertically through the roof Vent pipe runs must be adequately supported along both vertical and horizontal lengths Maximum unsupported length is recommended to be no more than 6 feet It is imperative that the first hanger be located on the horizontal length immediately adjacent to the first 90 degree elbow from the vertical rise of vent pipe connected to the water heater The support method used should isolate the vent pipe from floor joists or other structural members to help prevent the transmission of noise and vibration Do not support pin or otherwise secure the venting system in a way that restricts the normal thermal expansion and contraction of the chosen venting material If the water heater 1s being installed as a replacement for an existing power vented water heater a thorough inspection of the existing venting system must be performed prior to any installation work NOTICE The Blower Assembly is model specific and only the blower assembly supplied should be used on this water heater 4 Verify that the correct materials as detailed above have been used and that the minimum or maximum vent length and terminal locations as detailed in this manual have been met 2 Carefully inspect the entire venting syste
76. se 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 devices CAUTION 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 blower assembly DO NOT cover the burner access door jacket door gas control thermostat gas valve or pressure and temperature relief valve DO NOT apply insulation
77. surface is recommended WARNING Moisture in the flue gas will condense as it leaves the vent terminal In cold weather this condensate can freeze on the exterior wall under the eaves and on surrounding objects Some discoloration to the exterior of the building is to be expected However improper location or installation can result in severe damage to the structure or exterior finish of the building 18 Horizontal Vent Terminal Location The location of the vent terminal depends on the following minimum clearances and considerations see illustration 1 2 Vent Terminal must be at least twelve 12 inches above grade level and above normal snow levels Vent Terminal must be at least four 4 feet below or four 4 feet horizontally from any door operable window soffit under eave vent or gravity air inlet to the building or other appliances or from gas or electric meters Do not locate vent above walkways doors windows air inlets gas or electric meters or other equipment Vent Terminal must be at least three 3 feet above any forced air inlet located within ten 10 feet Any fresh or make up air inlet such as for a dryer or furnace area is considered to be a forced air inlet Vent Terminal must be at least eighteen 18 inches from an inside corner formed by two exterior walls Additional Considerations DO NOT install vent terminal under any patio or deck To help prevent moisture from freezing on wal
78. tact and tamper resistant screws with the Flammable Vapor Sensor Blower Assembly Dilution Air Holes ee L DON T operate the water heater if the sight glass or burner access door grommet is damaged or broken See below Sight Glass Burner Access Door Grommet Flammable Vapor Sensor 29 Installation Checklist 30 A D Water Heater Location Q Close to area of vent Q Indoors and protected from freezing temperatures Q Proper clearance from combustible surfaces observed and water heater not installed on carpeted floor Q Sufficient fresh air supply for proper operation of water heater Q Air supply free of corrosive elements and flammable vapors Water Supply C Water heater completely filled with water Q Air purged from water heater and piping Gas Supply Q Gas line equipped with shut off valve union and sediment trap C The required inlet gas pressure to the water heater is shown on the water heater rating plate Relief Valve C Temperature and Pressure Relief Valve properly installed and discharge line run to open drain Venting C Heater vented separately from all other appliances Q Flue baffle properly hung in top of heater s flue Q Blower assembly properly installed Q Proper materials and techniques used in vent assembly Q Vent pipe properly secured to blower housing F Wiring C Correct power supply 120 V Q Electrical
79. ure 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 fittings Bubbles indicate a gas leak that must be corrected The factory connections to the gas control thermostat should also be leak tested after the water heater is placed in operation 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 or 1 2 psi 14 w c for LP gas High Altitude Input rating of this water heater is based on sea level operation At higher elevations the actual input rate may be lower than the value listed on the rating label due to the derating of natural gas and LP gas This water heater can be installed at elevation up to the elevation listed on the rating plate attached to the water heater without any change or modification 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 or 1 2 psi 14 w c for LP gas Refer to the Venting Information tables on page 15 for maximum vent lengths Contact the local gas supplier for more information 11 Installing the
80. water heater a water heater must be installed with the factory supplied blower assembly in place ADANGER Failure to install the blower assembly 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 The vent pipe must overlap a minimum of on each connection It is important that the vent pipe engages fully into any pipe fitting and be kept in that position until the adhesive has fully cured DO NOT drill or punch holes in the plastic pipe or fittings NOTICE This unit is equipped with a Flammable Vapor Sensor DO NOT apply power until enough time has passed to allow the vapors from the primer and cement to dissipate Blower Assembly Installation Connect blower assembly with the electrical connector Attach Blower Assembly to top pan using the six 6 screws provided See diagram to the left DO NOT overtighten screws to ensure plastic does not crack Install rubber coupling supplied in the box with water heater on blower housing and secure it Venting The water heater must be vented to the outdoors as described in the
81. y the blower vacuum switch has closed ensuring that the blower is functioning properly and that the venting system is not blocked 4 The control will then proceed through a sequence of self diagnostics before initiating a trial for ignition 5 During the trial for ignition the pilot will spark in an attempt to light the pilot Once the pilot flame is established the main gas valve will open allowing gas to flow to the main burner 6 The main burner and pilot will remain lit throughout the heat cycle until the water temperature setting is reached 7 Once the water temperature setting is reached the control will close the main gas valve and pilot valve which will extinguish both the main burner and pilot burner flames 8 The blower motor will stay energized for an additional 30 seconds after the control verifies that the burner flame is extinguished in order to clear combustion gases from the water heater 9 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 vapor sensor that is monitored continuously by the electronic control in all modes of operation In the event that flammable vapors 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 Vapor Sens

Rheem XP50T06PV42U0 Instructions / Assembly

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