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Ruud PowerVent AP14236 User's Manual

1. Water Temperature Time To Produce a Serious Bum 120 F More than 5 minutes 125 F 1 2 to 2 minutes Temperature Setting 130 F About 30 seconds 135 F About 10 seconds WARM approx 70 F 21 C e00000 l A 140 F Less than 5 seconds V approx 120 F 49 C ooe More than 5 minutes 145 F Less than 3 seconds A approx 130 F 54 C ooo About 30 seconds 150 F About 1 2 seconds B approx 140 F 60 C ooo Less than 5 seconds 155 F About 1 second C approx 150 F 66 C ooo About 1 1 2 seconds C Flashing 160 F 71 C About 1 2 s d Table courtesy of Shriners Burn Institute Enaps a se O00 ou Scones 25 Sequence of Operation During initial start up or a call for heat the control will verify the vacuum switch is open 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 The control will verify the blower vacuum switch has closed ensuring that the blower is functioning properly and that the venting system is not blocked The control will then proceed through a sequence of self diagnostics before initiating a trial for ignition During the trial for ignition the hot surface ignitor will warm up Once the hot surface ignitor warms up the main gas valve will open allowing gas to flow to the main burner Once the main burner ignites the control will verify t
2. DO DON T Flammable Vapor Sensor L DO check inlet gas pressure to ensure that it is within the range specified on the rating plate Q DO provide adequate air for combustion and ventilation as discussed in the Use and Care Manual and the National Fuel Gas Code Q DO maintain proper clearances to combustibles as specified on the rating plate Q DO allow enough time for joint cement vapors to dissipate BEFORE applying power to the water heater Q DO ensure that the venting system complies with the guidelines found in the Use and Care Manual and National Fuel Gas Code Q DO contact a qualified service technician if the main burner will not stay lit The burner chamber is designed to be sealed utilizing a gasket and tamper resistant screws Burner Access Door Grommet Sight Glass Q DON T block or restrict Combustion Air Inlet Openings or the Flammable Vapor Sensor located around the lower portion of the water heater jacket Q DON T block or restrict the Blower Assembly Dilution Air holes see diagram to the left Q DON T remove the Burner Access Door unless absolutely necessary This should only be done by a qualified service technician A new burner access door gasket must be installed on any burner access door that has been removed Q DON T install this water heater where standing water may occur The base of the water heater is meant to be mounted on a dry surface Q DON
3. Buildings of unusually tight construction shall have the combustion and ventilation air supplied from outdoors or a freely ventilated attic or crawl space If air is supplied from outdoors directly or through vertical ducts there must be two openings located as specified above and each must have a minimum net free area of not less than one square inch per 4000 Btuh of the total input rating of all the appliances in the enclosure If horizontal ducts are used to communicate with the outdoors each opening must have a minimum net free area of not less than one square inch per 2000 Btuh of the total input rating of all the appliances in the enclosure If ducts are used the minimum dimensions of rectangular air ducts shall not be less than 3 NOTICE If the duct openings which supply combustion and ventilation air are to be covered with a protective screen or grill the net free area openings in the material of the covering material must be used in determining the size of the openings Protective screening for the openings MUST NOT be smaller than 1 4 mesh to prevent clogging by lint or other debris will shorten the life of any gas burning appliance Propellants from common spray cans or gas leaks from A C and refrigeration equipment are highly corrosive after passing through a flame The water heater warranty is voided when failure of the heater is due to operation in a corrosive atmosphere IMPORTANT Do not
4. 24 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 doors and windows for ventilation and all gas burning appliances 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 heater 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 a hot surface ignitor to light the main burner There is no pilot light to be lit but on initial start up it is recommended that the outer door be removed leave inner door in place for safety to determine if the hot surface ignitor and main burner are operating properly Once filled with water it is only necessary to plug the power cord in and make sure the ON OFF switch located on the blower assembly is in the ON position to put the water heater into operation Within seconds the hot surface ignitor should heat up then Water Temperature Setting The temperature of the water in the water heater can be regulated by pressing the buttons on the front of the gas control thermostat Safety and energy conservation are
5. More than 5 minutes A approx 130 F 54 C O00 e 0 oO About 30 seconds B approx 140 F 60 C O000eOo Less than 5 seconds C approx 150 F 66 C O0000 e About 1 1 2 seconds 4 C Flashing approx 160 F 71 C O0O000 About 1 2 seconds 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 DANGER If a gas leak is present or different from natural gas models A suspected natural gas water heater will not function safely on LP gas and vice versa Do not attempt to find the cause yourself No attempt should ever be made to convert the water heater from natural Do not try to light any appliance gas to LP gas To avoid possible Do_not touch any electrical switch equipment damage personal injury or fire do not connect the water heater to a fuel type not in accordance with the unit Leave the house immediately and make data plate LP for LP units Natural gas sure your family and pets leave also for natural gas units These units are not certified for any other
6. 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 g 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 Additional installation infor mation for The Commonwealth of Massachusetts is located on the back page of this manual Blower Assembly Installation if not factory installed Connect blower assembly with the electrical connector Attach Blower Assembly to top pan using the six 6 screws provided See diagram to the left Install rubber coupling supplied in the box with water heater on blower housing and secure it NOTICE The Blower Assembly is model specific and only the blower assembly supplied should be used on this water Maximum and Minimum Vent Lengths for Residential 40 amp 50 Gallon Power Vents ONLY Maximum Altitude for Models 2 amp 3 Vents 42VP40SF 42VP40SPF 42VPS5OSF 5 42VPS50SPF 42VP4O0F 42VP40PF 42VPS5OF IUN 42VP50PF 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
7. 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 27 ADANGER Combustible materials such as clothing cleaning materials or flammable liquids etc must not be placed against or next to the water heater Blower Assembly Dilution Air Holes Location of Dilution Air Holes Proper burner flame pattern 28 Housekeeping Visually inspect the hot surface ignitor To ensure sufficient ventilation and combustion air supply proper clearances must be maintained Venting System Inspection The water heater s internal flue must be inspected 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 hot surface ignitor and main burners annually Through the sight glass inspect the
8. 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 NOTICE Additional information on this subject may be found at www rheem com under Rheem Water Heating Support scroll down to the Technical Service Section and to Bulletins 1400 Series Section and choose Bulletin 1402 AWARNING Do not attempt to convert this water heater for use with a different type of gas other than the type shown on the rating plate Such conversion could result in hazardous operating conditions A WARNING Never use an open flame to test for gas leaks as property damage personal injury or death could result AWARNING Failure to install a water heater suitable for the altitude at the location it is intended to serve can result in improper operation of the appliance resulting in property damage and or producing carbon monoxide gas which could result in personal injury or death 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 sho
9. 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 ADANGER IMPORTANT SAFETY INFORMATION READ ALL INSTRUCTIONS BEFORE USING 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 Time Temperature Relationship in Scalds Water Temperature Time To Produce a Serious Bum 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
10. 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 Vacuum Relief Valve Not Supplied If required install per local codes and valve manufacturer s 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
11. 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 12 Venting The water heater must be vented to the outdoors as described in these instructions DO NOT connect this water heater to an existing vent or chimney it must be vented separately from all other appliances NOTICE This unit can be vented using only the following recommended pipe material Use only 2 or 3 inch diameter pipe PVC Schedule 40 ASTM D1785 CPVC Schedule 40 ASTM F441 ABS Schedule 40 ASTM D2661 ABS Schedule 40 DWV Cellular Core ASTM F891 The fittings other than the TERMINATION should be equivalent to
12. can be used on the burner and floor shield inside the water heater The burner can also be cleaned by scrubbing with mild detergent 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 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 operation and controls should be checked by qualified service personnel Make certain the water heater is completely filled again before placing it in operation Water sometimes contains a high sulfate and or mineral content and together with cathodic protection process can produce a hydrogen sulfide or rotten egg odor in the heated water Chlorinatio
13. 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 its lowest setting before the water heater was shipped from the factory The recommended starting point temperature is 120 F the gas valve should open and the main burner ignite After the main burner ignites replace the outer door If no main burner flame is established the gas control will go through three trials for ignition before going into a lock out A warning light will alert the user of this lock out condition If this happens refer to Troubleshooting Guide TO SHUT OFF WATER HEATER Turn switch on the blower assembly to the OFF position Water temperatures above 125 F can cause severe burns or death from scalding Be sure to read and follow the warnings outlined in this manual and on the label located on the water heater near the gas control thermostat Mixing valves are available for reducing point of use water temperature by mixing hot and cold water in branch water lines Contact a licensed plumber or the local plumbing authority for further information See page 4 for more details The chart on the next page may be used as a guide in determining the proper water temperature for your home Operating the wa
14. fuel type Do_not use any phone in your building Leave the doors open for ventilation and contact the gas supplier a qualified LP appliances should not be installed service agency or the fire department below grade for example in a basement if such installation is prohibited by federal state and or local laws rules regulations or customs 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 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 5 IMPORTANT SAFETY INFORMATION READ ALL INSTRUCTIONS BEFORE USING AWARNING For your safety the information in this manual must be followed to
15. minimize the risk of fire or explosion electric shock or to prevent property damage personal injury or loss of life FOR INSTALLATIONS IN THE STATE OF CALIFORNIA California Law requires that residential water heaters must be braced anchored or strapped to resist falling or horizontal displacement due to earthquake motions For residential water heaters up to 52 gallon capacity a brochure with generic earthquake bracing instructions can be obtained from Office of the State Architect 1102 Q Street Suite 5100 Sacramento CA 95814 or you may call 916 445 8100 or ask a water heater dealer However applicable local codes shall govern installation For residential water heaters of a capacity greater than 52 gallons consult the local building jurisdiction for acceptable bracing procedures SAFETY PRECAUTIONS Have the installer show you the location of the gas shut off valve and how to shut it off if necessary Turn off the manual shut off valve if the water heater has been subjected to overheating fire flood physical damage or if the gas supply fails to shut off Read this manual entirely before installing Do not attempt to repair or replace any part or operating the water heater of your water heater unless it is specifically recommended in this manual All other servicing should be referred to a qualified technician Use this appliance only for its intended purpose as described in this Use and Care Manual Be sure your app
16. 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 The minimum net free area of each opening must not be less than one square inch per 1000 Btuh of the total input rating of all the appliances in the enclosure but not less than 100 square inches if each opening communicates with other unconfined areas inside the building
17. on the following 5 5 minimum clearances and considerations see illustration S ee a A 4 Vent Terminal must be at least twelve 12 inches above Soffit vents de level and ab jl grade level and above norma ra pa snow levels 2 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 Inside corner Electric m 4 Fresh x ee meter Os aif vent above walkways doors windows air inlets gas or ia i intake electric meters or other equipment 3 ab O e Pao C 3 Vent Terminal must be at least three 3 feet above any 4 E Above gradelnow iev forced air inlet located within ten 10 feet Any fresh or make up air inlet such as for a dryer or furnace area is windo or vent considered to be a forced air inlet 4 Vent Terminal must be at least eighteen 18 inches from an inside corner formed by two exterior walls Additional Considerations 4 Do Not install vent terminal under any patio or deck Rising moisture will collect under eaves 2 To help prevent moisture from freezing on walls and under eaves do not locate vent terminal on the side of a building with preva
18. on the rating plate vent connectors or other safety devices Refer repairs to qualified service Part description as noted below and i a number of parts desired 9 Use only original equipment replacement parts Assembly Burner Assembly Kit Heat Trap Nipple Heat ak S AD ee ow Flue baffle and hanger Trap b a Nipple i Dip tube lt _ Dip tube gasket Anode rod Temperature and pressure relief valve The kit provides extra speed clips x and tamper resistant screws May differ in actual appearance Drain valve i Q Gas Control Thermostat Flammable Vapor Sensor Jacket Door Burner Access Door Gasket Burner orifice Igniter Burner Access Door Grommet Burner Access Door 33 Notes 34 Notes 35 IF YOU NEED SERVICE utility for qualified service assistance 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 2 Should your problem not be solved to your complete satisfaction you should then contact the Manufacturer s National Service Department at the following address 2600 Gunter Park Drive East Montgomery Alabama 36109 14
19. 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 mon oxide 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 detec tor 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 comply with the abo
20. the following PVC Schedule 40 DWV ASTM D2665 CPVC Schedule 40 ASTM F438 ABS Schedule 40 DWV ASTM D2661 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 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 is 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 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 9 Carefully inspect the entire venting system for any signs of cracks or fractures particularly at the joints between elbows or other fittings and the straight length of vent pipe
21. 13 Phone 1 800 432 8373 When contacting the manufacturer the following information will be requested eae sp 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 f 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 regula tion 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 including those owned or
22. 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 DANGER 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 24 and 25 for more details The temperature of the water in the heater can be regulated by pressing the temperature buttons 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 VACATION wOODOOOT A PEA 9 ss DANGER Hotter water increases the potential for Hot Water SCALDS Notice Mixing valves are available for reducing point of use water temperature by mixing hot and cold water Burns on Adult Skin in branch water lines Contact a licensed plumber or the WARM approx 70 F 21 C ec00000 local plumbing authority for further information Y approx 120 F 49 C 00 000
23. OFF position 3 Turn off all electric power to the appliance if service is to be performed he AX4762 23 Operating the water heater CAUTION Hydrogen gas can be produced in a hot water system served by this water heater that has not been used for a long period of time generally two weeks or more HYDROGEN GAS IS EXTREMELY FLAMMABLE To dissipate such gas and to reduce risk of injury it is recommended that the hot water faucet be opened for several minutes at the kitchen sink before using any electrical appliance connected to the hot water system If hydrogen is present there will be an unusual sound such as air escaping through the pipe as the water begins to flow Do not smoke or use an open flame near the faucet at the time it is open Safety Precautions A Do turn off manual gas shut off valve if water heater has been subjected to over heating fire flood physical damage or if the gas supply fails to shut off B Do Not turn on water heater unless it is completely filled with water Do Not turn on water heater if cold water supply shut off valve is closed D Do Not allow combustible materials such as newspaper rags or mops to accumulate near 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
24. OTTER buttons buttons at the same time and holding them for 1 atthe same time and holding them for 1 second Depress the HOTTER button until the second Depress the COOLER button until desired temperature is are lit The preferred start the WARM indicator light is lit ing point for temperature setting is indicated by on the thermostat Toggle the ON OFF switch located on the blower assembly to the OFF position 10 If the appliance will not operated follow the instructions TO TURN OFF GAS TO APPLIANCE Turn off all electric power to the appliance and call your service technician or gas supplier This appliance is equipped with a Hot Surface Ignition System which automatically lights the sale XA ioa burner Do NOT open the inner door ofthis ua 000 00 appliance and try to light the burner by hand COOLER 9 S HORTER Wait five 5 minutes to clear out any gas If you smell gas STOP Follow B in the safety inform ation above on this label If youdo not smell gas go to the next step Turn on all electric power to the appliance Toggle the ON OFF switch located on the blower TO TURN OFF GAS TO APPLIANCE Set the thermostat to the lowest setting by first depressing the COOLER Q and HOTTER buttons at the same time and holding for 1 second Depress the COOLER button until only the WARM indicator light appears 2 Toggle the ON OFF switch located on the blower assembly to the
25. Potable Space Heating Installation Nominal 3 4 size mixing or tempering valve refer to warning above Follow mixing or tempering valve manufacturer s instructions for installation of the valve Spring loaded check valve in heating unit hot water supply line and cold water return line not supplied with water heater NOTE This check valve is incorporated in some heating units Refer to the installation instructions supplied with specific heating unit to determine if it is required Isolation valye in hot water supply line to heating unit not supplied with water 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 gt Temperature and pressure relief valve discharge line Gas Control Thermostat 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 ne with Local and State Energy ode 22 Combination Potable Water and Space Heating Application Tee fitting must be installed as shown This ensures that any air in the water lines will be purged through the domestic water faucets and showers ADANGER When this system requires water for space heating at elevated temperatures above 125 F 52 C a m
26. T allow cleaners solvents or other materials to come into contact with the Flammable Vapor Sensor Q DON T operate the water heater if the sight glass or burner access door grommet is damaged or broken see to the left Installation Checklist A 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 B Water Supply C D Q 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 Q Approved pipe joint compound used LI Soap and water solution used to check all Relief Valve Q Temperature and Pressure Relief Valve properly installed and discharge line run to open drain Venting Q Heater vented separately from all other appliances Q Flue baffle properly hung in top of heater s flue Q Blower assembly properly installed L Proper materials and techniques used in vent assembly Q Vent pipe properly secured to blower housing F Wiring L Correct power supply 120 V Q Electrical connections tight U Provisions made to protect area from water damage LD Sufficient room to serv
27. Use amp Care Manual With Installation Instructions for the Installer Residential Gas PowerVent Water Heaters Residential 40 50 60 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 California Proposition 65 Warning This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive harm A WARNING If the information in these instructions is not followed exactly a fire or ex
28. alified service personnel 30 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 Scale and sediment Relief valve producing popping noise or draining Pressure build up caused by thermal expansion to a closed system Not enough or no hot water Water usage may have exceeded the capacity of the water heater What To Do Drain the water heater to remove scale and sediment from the tank Refer to the top of page 26 This is an unacceptable condition and must be corrected Contact the water supplier or plumbing contractor on how to correct this Do not plug the relief valve outlet Wait for the water heater to recover after an abnormal demand Low gas pressure Check gas supply pressure and manifold pressure The gas control thermostat may be set too low Leaking or open hot water faucets See the Water Temperature Setting of The Water Heater section of this manual Make sure all faucets are closed Check valve error codes Refe
29. ausing property damage personal injury or loss of life This appliance does not have a pilot It is equipped instructions with an ignition device which automatically lights e Ifyou cannot reach your gas supplier call the burner _Do NOT try to light the burner by hand the fire department BEFORE PUTTING THIS APPLIANCE INTO c Use only your hand to push in the gas control SERVICE Smell all around the appliance buttons Never use tools If the control buttons area for gas Be sure to smell next to the floor il Kan don irth ii because some gas is heavier than air and WENT HOR pusin Qon ttry torepair them calla will settle on the floor qualified service technician Force or attempted repair may result in fire or explosion WHAT TO DO IF YOU SMELL GAS e Donottry to light any appliance D Do not use this appliance if any part has been e Do not touch any electric switch do notuse under water Immediately call a qualified in any phone in your building staller or service agency to replace a flooded e Immediately call your gas supplier from a water heater Do not attempt to repair the unit neighbor s phone Follow the gas suppliers It must be replaced OPERATING INSTRUCTIONS Stop Read the safety information above on assembly to the ON position this label Setthermostat to the desired temperature setting Set the thermostat to the lowest setting by by pressing the COOLER Q and HOTTER pressing the COOLER Qor H
30. chedule 40 PVC 90 vent terminal When venting with 4 pipe a Schedule 40 PVC 90 vent terminal must be used Screens for both 3 and 4 vent terminals have been included 14 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 Length in Feet ft 2 001 and above See Maximum Altitude chart on left Number of 90 elbows with Vent Maximum Vent Pipe Length in Feet ft 0 2 000 32 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 35 30 27 5 25 Minimum vent length for 4 vent pipe is one 1 foot of vertical pipe one 1 90 elbow and four 4 feet of horizontal pipe Maximum Venting information for 4 Vents Number of Maximum Vent Pipe Number of 90 elbows with Vent 45 Elbows Length in Feet ft two se o o 8 O id For the 4 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 5 o 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 Horizontal Vent Terminal Location The location of the vent terminal depends
31. ction 28 Burner Inspection 28 Extended Shut Down 29 Troubleshooting Tips Before You Call FOR SENG coo aovocec 30 32 Customer Service Parsist a EET 33 If You Need Service 36 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 A DANGER An imminently hazardous situation that wi
32. cture or exterior finish of the building g Do Not extend exposed vent pipe outside of building 15 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 2 x 2 Sheet Metal Shieldon Brick or Masonry Walls Vent Terminal Vent Pipe with Mesh Protective From Screen Inside Water Heater ees ae See ste ES SOAR IASG CoS PENISIN ES ESI SGEA 2D 5 god Outside of SSS ZSS y Sees Building Wall INIA 2 Insert 1 2 Mesh Protective Screen Inside Terminal Elbow Short Piece of Vent Pipe Vent Pipe Through Roof in 12 Above Roof Min 12 Above L Anticipated Snow Level Max 24 Above Roof Vent Terminal Without Additional Support 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 p
33. d 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 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 17 Wiring If local codes permit the water heater may be connected to electric service with the power cord provided DO NOT use an extension cord A grounding receptacle is required If local codes do not permit the use of cord connections a 120 V 50 60 Hz power supply with suitable disconnecting means must be connected to the black and white leads in the heater control enclosure A knock out hole is provi
34. ded to permit use of conduit or metal clad cable connectors CONNECTION DIAGRAM 6 PINCONNECTOR BK dangerous operation VERI 18 ON OFF SWITCH PRESSURE SWITCH TEMPERATURE SWITCH G IGNITER AND FLAME PROBE ELECTRONIC CONTROL The maximum current draw is approximately 5 0 amps The water heater must be electrically grounded in accordance with local codes or in the absence of local codes in accordance with latest edition of the National Electric Code ANSI NFPA No 70 Refer to the figures below for water heater internal wiring NOTE It is not recommended that this unit be installed on a GFCI circuit SCHEMATIC LAM SENSOR IGNITER FV SENSOR ON OFF O SWITCH BK BLACK BL BLUE Y YELLOW CAUTION Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and Y PROPER OPERATION AFTER SERVICING Installing the water heater AWARNING 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 4 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 purpose of an insulation b
35. erature 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 tank near the gas control thermostat Therefore always remember to test the water temperature with your hand before use and remember that hotter water increases the risk of scald injury Also always supervise young children or others who are incapacitated The gas control thermostat is constructed with 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 with a single use gas shut off device that will shut off the gas supply to the burner if the water heater exceeds normal operating temperatures Refer to the Before You Call For Service section of this manual or contact your dealer A WARNING Should overheating occur or the gas supply fail to shut off turn off the manual gas control valve to the appliance 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 is has been checked by a qualified service technician NOTICE Replace any part of the gas control system which has been under water VACATION Was c AQOO0 00 COOLER 9 HOTTER A warninc
36. f 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 The discharge line must be no smaller than the outlet of the valve and must
37. ficient 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 casused 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 handle on the temperature pressure relief valve located near the top of the water heater to make certain the valve operates freely Allow several gallo
38. for both 2 and 3 vent terminals have been included 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 Length in Feet ft 2 001 and above See Maximum Altitude chart on left Number of Number Maximum Vent Pipe 90 elbows of 45 Length in Feet ft with Vent Elbows 0 2 000 3 5 5 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 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 Number of Maximum Vent Pipe with Vent 45 Elbows Length in Feet ft One O mo e o 8 O Nowe isd 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 5 o 5 13 Installing the water heater Maximum and Minimum Vent Lengths for Residential 60 Gallon Power Vents ONLY Maximum Altitude for Models 3 amp 4 Vents 42VP60F 42VP60PF ay NOTICE The mixing of 3 and 4 vent pipe is not recommended If 4 pipe is used a 2 to 4 reducer fitting is recommended at the rubber coupling This water heater is supplied with a 3 S
39. hat the burner flame is present through the flame sense circuit The hot surface ignitor will then turn off The main burner will remain lit throughout the heat cycle until the water temperature setting is reached Once the water temperature setting is reached the control will close the main gas valve which will extinguish the main burner flames 26 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 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 Sensor 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 appr
40. hot surface ignitor with the main burner off and inspect the main burner while firing If any unusual burner operation is noted the water heater should be shut off until qualified service assistance can be obtained 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 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 ACAUTION For your safety cleaning of the burner must be performed only by qualified service personnel as it involves the disconnection of gas piping and leak testing The burner chamber is a sealed area If the burner access door is removed the burner access door gasket must be replaced For cleaning remove the burner from the water heater A vacuum cleaner
41. ice heater L 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 Q Flammable vapor sensor is not blocked Q Water connections tight and free of leaks connections and fittings for possible gas leak L Gas Company inspected installation if required Q Discharge line protected from freezing Q Vent pipe supported at required intervals U Appropriate minimum clearances observed Q Precautions taken to prevent moisture damage around vent termination Q Vapors from vent pipe cement and primer have dissipated prior to applying electrical power Heater properly grounded and proper polarity observed 21 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 Hot water t supply to house E Hot water supply to From HOT heating outlet on unit water heater Tee fitting for vertical hot water supply lines Hot water T be supply to ui PaB water heater S Hot water supply to heating unit Tee fitting for horizontal hot water supply lines Typical Piping Diagram for Combination
42. iling winter winds If soffit vent is too close block off and install new vent at 6 another location 3 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 Inside corner Caulk 6 1 83 m 3 6 caulk zone Zone or to edge of window etc starting within 6 I I Caulk Do Not locate vent terminal too close to shrubbery as flue gasses may damage them 5 Caulk all cracks seams and joints within six 6 feet of vent terminal 41 2 ft sq sheet metal plate on brick or Imasonry surface is recommended 6 All painted surfaces should be primed to lessen the chance of physical damage Painted surfaces will require maintenance WARNING Moisture in the flue gas will condense as it leaves the vent terminal In cold weather this condensate can Insulate vent pipe exposed to cold conditions attics crawl freeze on the exterior wall under the eaves and on spaces etc with inflammable material to help prevent surrounding objects Some discoloration to the exterior of moisture from accumulating in vent pipe the building is to be expected However improper location or installation can result in severe damage to the stru
43. ixing or tempering valve must be installed in the hot water supply line to the house in order to reduce the scald hazard potential ADANGER Any piping or components used in the installation of this water heater in a combination potable and space heating application must be suitable for use with drinking water Minimum of 2 0 developed length of 3 4 pipe Air vent Off Valve Typ Gas Fired Isolation Water Heater supplied heater Gas Direct Vent discharge must comply with Local and State Codes Combustion Air Inlet Openings Q Air Gap SSS gt BY A 3 4 smut U5 E Expansion Tank if A required not supplied X j with water heater ADANGER If this water heater is installed in an application intended to supply domestic hot water needs and hot water for space heating purposes do not connect the heater to an existing heating unit or components of a heating system that have previously been used with a non drinking water system Toxic chemicals such as those used for boiler treatment may be present and will contaminate the drinking water supply causing possible health risks Never introduce toxic chemicals such as those used for boiler treatment into this system Notice 50 0 maximum distance from water heater to fan coil developed length is required for Massachusetts State Pressure Gauge 3 4 Check Valve with 1 8 Hole 3 4 Tempered domestic hot water supp
44. l valve VY ABC One of the temperature adjust 1 Press and release each of the buttons once O O O buttons stuck closed 2 Replace gas control valve V ABC Water temperature sensor is either open 1 Check that all wiring is correct and secure 0 orshort circuited 2 Replace gas control valve VABC 1 Check for correct wiring to FV sensor 0 0 O Unit shuts down 2 Check for open circuits to FV sensor 3 Replace FV sensor VABC 1 FV sensor detected presence of flammable vapors 0 0 0 O Unit shuts down and in lockout 2 Contact a service agency CAUTION Make certain power to water heater is OFF before removing protective cover FOR ANY REASON CAUTION Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and dangerous operation VERIFY PROPER OPERATION AFTER SERVICING CAUTION For your safety DO NOT attempt repair of gas piping remote control burners vent connectors or other safety devices Refer repairs to qualified service personnel 32 Replacement Parts For 40 and 50 gallon models using natural or LP gas Instructions For Placing a Parts Order All parts orders should include 4 Refer to page 36 4 The model and serial number of the water heater from the rating plate ACAUTION For your safety DO NOT attempt repair of gas piping 2 Specify type of gas natural or LP gas control thermostat burners as marked
45. lanket 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 ACAUTION If local codes require the application of an external insulation blanket to this water heater pay careful attention to the following so as not to restrict the proper function and operation of the water heater Do not cover the operating or warning labels attached to the water heater or attempt to relocate them on the exterior of insulation blanket Do not apply insulation to the top of the water heater This will interfere with the safe operation of the 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 to the bottom of the
46. liance is properly installed in accordance with local codes and the provided installation instructions v READ AND FOLLOW THIS SAFETY INFORMATION CAREFULLY TEN 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 Xd Vapor Diameter of Sensor le water heater plus 2 min The auxiliary catch pan installation MUST conform to local codes Notice DO NOT allow the catch pan to obstuct 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 A WARNING Combustible construction refers to adjacent walls and ceilings and should not be confused with combustible or flammable products and materials Combustible and or flammable products and materials should never be stored in the vicinity of this or any gas appliance Location The water heater should not be located in an area where leakage from the tank o
47. ll 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 allow the flammable vapor sensor to come into contact wi
48. loset 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 7 Installing the water heater NOTICE Do not install the water heater in attics where the temperature may exceed 100 F This water heater is equipped with a temperature sensing device that will shut off the water heater if the maximum allowable vent pipe temperature is exceeded 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 Ventilation ambient air temperature must be 100 F or less 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 air inlet openings located around the perimeter of the water heater A minimum
49. ly to house yy k S K t su Heat Trap Ti J eMn Q y 2 Gallon Thermal 3 4 HWS amp HWR to Heating Coil Drain valve not supplied with water heater valve in cold water return line from heating unit not with water A rE a Pp Shut Off Valve Typ aN Vacuum Relief Valve Not Supplied If required install per local codes and valve manufacturer s instructions 3 4 Shut Off Valve Typ 3 4 cold water supply A UA Hot water to space heater lI Hot water coil All bronze pump II Check valve internal in pump Ki Air bleed valve ALLN lI Water Sample Tap To HVAC Unit Air Handler Electronically controlled pump timer Activates every 6 hours for 60 seconds Wire to bronze pump ON OFF Lighting the water heater Before operating this water heater be sure to read and follow the instructions on the label pictured below and all other labels on the water heater as well as the warnings printed in this manual Failure to do so can result in unsafe operation of the water heater resulting in property damage personal injury or death Should you have any problems reading or following the instructions in this manual STOP and get help from a qualified person a N FOR YOUR SAFETY READ BEFORE OPERATING WARNING If you do not follow these instructions and use the Use amp Care Manual instructions exactly a fire or explosion may result c
50. main where the pressure is easily dissipated A closed water system however prevents the expanding water from flowing back into the main supply line and the result of thermal expansion can create a rapid and dangerous pressure increase in the water heater and system piping This rapid pressure increase can quickly reach the safety setting of the relief valve causing it to operate during each heating cycle Thermal expansion and the resulting rapid and repeated expansion and contraction of components in the water heater and piping system can cause premature failure of the relief valve and possibly the heater itself Replacing the relief valve will not correct the problem The suggested method of controlling thermal expansion is to install an expansion tank in the cold water line between the water heater and the check valve see illustration below The expansion tank is designed with an air cushion built in that compresses as the system pressure increases thereby relieving the over pressure condition and eliminating the repeated operation of the relief valve Other methods of controlling thermal expansion are also available Contact your installing contractor water supplier or plumbing inspector for additional information regarding this subject 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 wate
51. n of the water supply should minimize the problem 29 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 down if undesirable combustion conditions occur such as the presence of flammable vapors or blockage of This water heater incorporates a combustion shut off device that shuts the operation of the water heater the combustion air inlet openings Please contact a Qualified Service Technician if this occurs Problem Condensation Yellow flame or soot Unable to light the main burner Main burner does not stay lit Possible Causes This usually happens when a new water heater is filled for the first time What To Do This is normal After the water in the tank warms up the condensation will disappear If however the condition persists examine the piping and fittings for possible leaks Moisture from the products of combustion condensing on the tank surface This is normal and will disappear in time Excessive condensation can cause main burner outage An undersized water heater will cause condensation Scale on top of the burner Use a water heater size that meets the requirements of your needs Contact a qualified service technician to remove scale Flue or Combustion air inlet openings are restricted Remove obstruction or debris from flue or combustion air inlet ope
52. nings on water heater jacket Not enough combustion or ventilation air supplied to the water heater location Air in gas line Proper operation of the water heater requires air for combustion and ventilation See the Combustion and Ventilation Air information in the Installing The Water Heater section of this manual Contact a qualified service technician to purge the air from the gas line Gas Cock Knob not correctly positioned Contact a qualified service technician to correctly position the gas cock knob Blocked Exhaust Contact a qualified service technician to evaluate vent pipe for blockage Pressure Switch Make sure the pressure switch hose is not kinked Wire Connection not fully secured Contact a qualified service technician to confirm wire connections Combustion Shut off Device tripped Combustion shut off device should be inspected by a qualified service technician Gas Control Problem Gas Controls Thermostat s single use gas shut off device has opened Contact a qualified service technician The gas control thermostat should be replaced by a qualified service technician Combustion Shutoff Device Tripped The combustion shutoff device should be inspected by a qualified service technician ACAUTION For your safety DO NOT attempt repair of gas piping gas control thermostat burners vent connectors or other safety devices Refer repairs to qu
53. ns 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 annually for inspection and replaced when more than 6 of core wire is exposed at either end of the rod Make sure the cold water supply is turned
54. nstructions shall remain with the appliance or equipment at the completion of the installation
55. opriate error code and you should then promptly contact a qualified service technician Refer to the Notice on page 3 for additional information Care and cleaning of the water heater ADANGER Before manually operating the relief valve make certain no one will be exposed to the danger of the hot water released by the valve The water may be hot enough to create a scald hazard The water should be released into a suitable drain to prevent injury or property damage ADANGER Hotter water increases the potential for Hot Water Scalds Blower Assembly Dilution Air Holes Location of Dilution Air Holes ADANGER Failure to perform the recommended Routine Preventative Maintenance can harm the proper operation of this water heater which can cause carbon monoxide dangers excessive hot water temperatures and other potentially hazardous conditions Draining the Water Heater 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 to 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 suf
56. plosion may result causing property damage personal injury or death A FOR YOUR SAFETY If you cannot reach your gas supplier call Do not store or use gasoline or other the fire department flammable vapors or liquids or other combustible materials in the vicinity of this or any other appliance To do so may result in an explosion or fire Improper installation adjustment alteration service or maintenance can cause property WHAT TO DO IF YOU SMELL GAS damage personal injury or death Refer to Do not return to your home until authorized by the gas supplier or fire department Do not try to light any appliance this manual Installation and service must be performed by a qualified installer service agency or the gas supplier Do not touch any electrical switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instruction Printed in USA AP14236 05 07 Safety Information Safety Precautions 3 6 RGasilViocdel Sie eee 5 Installation Instructions ocat omt ea eee E T Water Supply Connections 9 Gast Supp lyaeneeeen en 11 Ventine A 12 16 Wiring Diagram 18 Pires Ii UIRSON oo ccoc seo 19 nea lllita pS ree ee 20 Installation Checklist 21 Potable Space Heating 22 Operating Instructions Lighting Instructions 23 Water Temperature 24 25 Care and Cleaning Vent System Inspe
57. r gas supplier for correction The factory connections to the gas control thermostat should also be leak tested after the water heater is placed in operation 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 2 000 feet 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 For installation between 2 000 and 7 700 feet refer to the Venting Information tables on page 13 and 14 for maximum vent lengths Installations above 7 700 feet are not authorized Contact the local gas supplier for more information Installing the water heater The water heater must be installed with the factory supplied blower assembly in place ADANGER Failure to install the blower
58. r connections so that the water heater may be easily disconnected 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 Typical Installation Vent connector r 1 4 per foot maximum slope up or down for horizontal venting Heat tra 6 mini P Blower assembly minimum Hot water outlet to Anode fixtures Water Heater Jacket Temperature and pressure relief valve Manual gas shut off gt H eat trap To gas supply gt 6 game o cold water Re Ground joint union supply Sediment trap Cap Shut off valve Thermal expansion tank if required Relief valve discharge line to suitable open Thermostatic gas valve drain Combustion Air Inlet Openings Jacket door Flammable Vapor Sensor Auxiliary catch pan 6 Air gap Drain Pan Pipe to suitable drain 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 221 22 is supplied and must remain in the opening provided and marked for the purpose on the water heater No valve of any type should be installed between the relief valve and the tank Local codes shall govern the installation of relief valves AWARNING The tank must be full o
59. r 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 is strong enough to sufficiently support the weight of the water heater once it is filled with water A gas fired water heater or any other appliance should not be installed in a space where liquids which give off flammable vapors are to be used or stored Such liquids include gasoline LP gas butane or propane paint or adhesives and their thinners solvents or removers DO NOT block or obstruct 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 room or other enclosed space flammable vapors can be carried some distance from where liquids which give off flammable vapors are to be
60. r to gas valve error code table on page 30 ON OFF switch turned off Turn ON Blower unplugged Plug in Verify power supply 120VAC Combustion Shutoff System tripped Water is too hot The gas control thermostat is set too high Contact a qualified service technician See the Water Temperature Setting of The Water Heater section of this manual Gas Control Thermostat Defective 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 31 Gas Valve LED Codes LED Status Problem Solution VABC 1 Check that the earth ground connection is properly Sore An open earth ground circuit to the connected ignition system 2 Check that the ground conductor on the water heater is properly connected VABC 1 Check proper connection of line 0 0 OS Wiring error or a high resistance to neutral and hot wires earth ground 2 Check that the water heater is secu
61. rely connected to earth ground VABC Peete switch remained closed 1 Pressure switch wiring is incorrect ae ee Mana seconds after the call for 2 Replace pressure switch heat began V ABC Pressure switch remained open lon 1 Pressure switch wiring is incorrect 0 000 Fin 5 seconds after the combustion 2 Pressure switch tubing is not connected correctly blower was energized 3 Air intake or exhaust obstructed V ABC Error in the hot surface ignitor cir 1 Check that all wiring is correct and secure 0600 cut 2 Replace hot surface ignitor V ABC System in lockout 1 Gas supply is off or too low to operate 00e e o 2 Hot surface ignitor not positioned correctly 3 Low voltage to the water heater 4 Electric polarity to unit is incorrect test and cor rect 5 Combustion shut off device tripped contact ser vice agency VABC 1 Turn power to the water heater off for 10 seconds eccoc54ee epi in the gas valve driver cir and then back o l 2 Replace gas control valve VABC 1 Turn power to the water heater off for 10 seconds 0 Problem with the internal circuit and then back on 2 Replace gas control valve VABC 1 Turn power to the water heater off for 10 seconds Problem with the internal circuit and then back on 2 Replace gas control valve V ABC Flame signal sensed out of 1 Replace gas control valve 00O O proper sequence Z y A B C ECO activated 1 Replace gas contro
62. reviously mentioned FOR THE 60 GALLON MODELS ONLY a 90 vent termination must be used and must be at least 2 from the wall 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 additional support for vent gt A UNa Four 4 feet from any gable dormer or other roof structure with building interior access i e vent window etc 5 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 Vertical Vent Installation Once the vent terminal location has been Determine the vent terminal height and cut determined make a hole through the roof vent pipe accordingly Refer to the above and interior ceiling to accommodate the section for proper vent terminal height vent pipe Connect vent elbow onto vertical pipe Complete the vent pipe installation to the through roof water heater s vent connector fitting on the blower outlet Connect short piece of vent pipe approximately 3 long to elbow then Support vertical or horizontal lengths as insert 1 2 mesh metal screen into terminal previously mentioned Install adequate flashing where the vent elbow and join i
63. ructure 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 VENTING SYSTEM NOT PROVIDED When the manufacturer of a Product Approved side wall horizontally vented gas fueled equipment does not provide the parts for venting the flue gases but identifies special venting systems the fol lowing 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 all venting design i
64. t to the short piece of vent pipe pipe passes through the roof 16 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 AWARNING 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 ACAUTION 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 and cleaner must be used for the type of vent pipe used PVC CPVC or ABS 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 After checking pipe an
65. ter heater Time Temperature Relationship in Scalds Water Temperature Setting Maximum water temperatures occur just after the burner has shut off To determine the water temperature turn on a hot water faucet and place a thermometer in the water stream To avoid any unintentional changes in water temperature settings the gas control thermostat has a tamper resistant feature for changing the temperature setting To change the temperature setting follow these instructions 1 Wake Up the temperature indicators by holding down both COOLER and HOTTER temperature adjustment buttons at the same time for one second see Figure below One or two of the temperature indicators will light up These indicators will only remain on for 30 seconds if no further buttons are pressed After 30 seconds the control will go back to sleep mode 2 Release both of the temperature buttons a To decrease the temperature press and release the COOLER button until the desired setting is reached b To increase the temperature press and release the HOTTER button until the desired setting is reached NOTE Holding down the button will not continue to lower or raise the temperature setting The button must be pressed and released for each temperature change desired A condition known as stacking or layering can occur when a series of short and frequent hot water draws are taken The hottest temp
66. th 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 T 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 5 x Flammable Vapors
67. uld be installed in the gas line close to the water heater The National Fuel Gas Code NFGC mandates a manual gas shut off valve See NFGC for complete instructions 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 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 fittings Bubbles indicate a gas leak that must be corrected the gas piping must be of the type resistant to the action of LP gas Use compound sparingly on male threads only A sediment trap should be installed at the bottom of the gas line Do not use excessive force over 31 5 ft Ibs 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 pressure with main burner on is shown on the water heater rating plate If high or low gas pressures are present contact you
68. 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 The water heater must be located so it is not subject to physical damage for example by moving vehicles area flooding etc If local codes require the use of a stand kit to raise the water heater 18 above the floor please contact the store where the water heater was purchased or any water heater distributor These kits must comply with local codes 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 rooms normally kept closed or in unprotected outdoor areas Minimum clearance from combustible construction 32 1 0 12 7 6 cm 2 5cm 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 c
69. ve 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 36 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 horizon tally vented gas fueled heating appliance or equipment The sign shall read in 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 in stalled in a room or structure separate from the dwelling building or st
70. 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 Typical vertical piping arrangement For increased energy efficiency some water heaters have been supplied with two 24 sections of pipe insulation Dilution Air Holes Typical horizontal piping arrangement Please install the insulation according to the illustrations above that best meets your requirements 19 Blower Assembly Dilution Air Holes Location of Dilution Air Holes 20 Heat Trap For increased energy efficiency some water heaters have been supplied with factory installed 3 4 NPT heat traps in the hot outlet line and cold water inlet line These heat traps may require a minimum of one 1 90 3 4 NPT elbow and may require an additional 90 3 4 NPT elbow or a 3 4 coupling depending on your installation needs See Illustration of nipples and heat traps on page 33 During Installation of this water heater

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