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Installation (Locating The Water Heater) continued-WARNINGDO NOT ATTEMPT TO LIGHT ANY GAS APPLIANCE IF YOU ARENOT CERTAIN OF THE FOLLOWING: Liquefied petroleum gases/propane gas and natural gas have anodorant added by the gas supplier that aids in detection of thegas. Most people recognize this odor as a “sulfur” or “rotten egg”smell. Other conditions, such as “odorant fade” can cause the odorant todiminish in intensity, or “fade”, and not be as readily detectable. If you have a diminished sense of smell, or are in any way unsureof the presence of gas, immediately contact your gas supplierfrom a neighbor’s telephone. Gas detectors are available. Contact your gas supplier orplumbing professional for more information.Proper venting practices must be considered when selecting a location for thiswater heater. For exact venting specifications, please consult the Ventingsection of these Installation and Operating Instructions.This water heater must be located in an area where leakage of the tank, waterline connections, or the combination temperature and pressure relief valve willnot result in damage to the area adjacent to the water heater or to lower floorsof the structure. When such locations cannot be avoided, a suitable drain panmust be installed under the water heater. The drain pan must have aminimum length and width of at least 4 inches (10.2 cm) greater than thediameter of the water heater and must not restrict proper combustion air flowto the water heater. The drain pan, as described above, can be purchasedfrom your plumbing professional. The drain pan must be piped to anadequate drain. The piping must be at least ¾ inch (1.9 cm) in diameter andpitched for proper drainage.It is recommended that a minimum clearance of 4 inches (10.2 cm) beprovided on the side of the water heater for servicing and maintenance of thecombination temperature and pressure relief valve.8

MINIMUM CLEARANCESWARNINGFailure to adhere to these installation and operating instructions maycreate a hazard to life and property and will nullify the warranty.This installation shall allow access to the front of the water heater andadequate clearance shall be provided for servicing and operating this waterheater. The water heater may be installed on either a combustible or noncombustible floor. If the water heater is to be installed directly on carpeting, itshall be installed on top of a metal or wood panel (or equivalent) extendingbeyond the full width and depth of the appliance by at least 3 inches (7.6 cm)in any direction or, if the appliance is to be installed in an alcove or closet, theentire floor shall be covered by the panel. If the rating plate or the label onthe front of the heater specifies minimum clearances less than thoselisted in the below table, the water heater may be installed in accordancewith the minimum clearances listed on the rating plate or the label onthe front of the heater.If it is necessary to install this water heater in an alcove, use the clearanceslisted in Figure 1.Figure 19

VENTINGWARNINGThe venting system must be installed properly following all local codesor in the absence of local codes, the latest edition of the National FuelGas Code (ANSI Z223.1- latest edition), or in Canada, The Natural Gasand Propane Installation Code (B149.1-00 latest edition). Failure toproperly install the venting system could result in property damage,personal injury, or death.WARNINGCarefully inspect the venting system of a replacement water heaterinstallation before connecting to the venting system. All joints in thevent connector must be securely fastened with screws and fit tightlytogether. Inspect the venting system for signs of deterioration (rust andperforation) and replace any sections that are not in good condition.The chimney must be lined and in good condition. Check to make surethe venting system is properly sized for the water heater. If the ventingsystem was previously sized for another gas appliance that has beenremoved, the venting system may now be too large. Refer to the latestedition of the National Fuel Gas Code (ANSI Z223.1-latest edition), or inCanada, the Natural Gas and Propane Installation Code (B149.1-00latest edition) for the correct sizing of venting systems and commonventing with another gas appliance.Do not vent this water heater into the venting system of another gasappliance designed to vent under positive pressure.The water heater should be installed as close as practical to the ventingsystem to minimize the vent connector length required. Refer to localcodes for the distance limitations on vent connector lengths.At the completion of the water heater installation, the burner and ventingsystem must be checked for proper operation with all other commonlyvented appliances in operation. Check for spillage of flue productsaround the outside relief opening of the draft hood after several minutesof operation. The flame from a match should be drawn into the drafthood. Do not use the water heater or connected equipment if spillage isdetected until the problem is corrected. Refer to the latest edition of theNational Fuel Gas Code, or in Canada, the Natural Gas and PropaneInstallation Code for complete details on the “Procedure to Be Followedto Place Equipment in Operation”.This water heater has been shipped with a draft diverter for which it wasdesigned with reference to the horizontal and vertical planes. If removed, thedraft diverter must be replaced in the same position and secured to the jackettop by the screws with which it was installed.10

Venting continued-This water heater must be connected to a lined masonry chimney or ventingsystem approved by local codes or ordinances. The vent connector used toattach the draft diverter outlet to the chimney or approved vent must be of thesame diameter as the draft diverter outlet or larger. For proper venting incertain installations, a larger vent connector may be needed. Consult ventingtables in ANSI standard (Z223.1-or latest edition), National Fuel Gas Codeand CAN/CGA (B149.1 or B149.2-latest editions) Natural Gas and PropaneInstallation Code, or local code officials for proper application for your area.Combustion Air SupplyWARNINGLiquefied petroleum gases/propane gas are heavier than air and willremain at floor level if there is a leak. Basements, crawl spaces, closetsand areas below ground level will serve as pockets for accumulation ofleaking gas. Before lighting, smell all around the appliance area forgas. Be sure to smell next to the floor.IF YOU SMELL GAS: Do not try to light any appliance. Do not touch any electric switch; do not use any telephone inyour building. Immediately call your gas supplier from a neighbor’stelephone. Follow the gas supplier’s instructions. If you cannot reach your gas supplier, call the fire department.DO NOT OPERATE APPLIANCE UNTIL LEAKAGE IS CORRECTED!IMPORTANTThe flow of combustion and ventilating air must not be obstructed.x Do not block or in any way restrict jacket air inlet slots located at thebottom front of the water heater.Provide adequate air for combustion and ventilation. An insufficient supply ofair will cause recirculation of combustion products resulting in aircontamination that may be hazardous to life. Such a condition often will resultin a yellow, luminous burner flame, causing carboning or sooting of thecombustion chamber, burners and flue tubes with possible damage to thewater heater.When an exhaust fan is installed in the same room with a heater, sufficientopenings for air must be provided in the walls. Undersized openings willcause air to be drawn into the room through the chimney, causingrecirculation of combustion products.11

Combustion Air Supply continued-Confined SpacesConfined spaces are spaces defined as having less than 50 feet³ (1.41 m³) ofspace per 1,000 BTU (.29kw) per hour of input.Unconfined SpacesIn unconfined spaces in buildings, infiltration may be adequate to provide airfor combustion, ventilation and dilution of flue gases. However, in buildings oftight construction (for example, weather stripping, heavily insulated, caulked,vapor barrier, etc.), additional air may need to be provided using the methodsdescribed above under CONFINED SPACES: All Air From Outdoors orSPECIALLY ENGINEERED INSTALLATIONS.All Air From Inside the Building: The confined space shall be provided withtwo permanent openings communicating directly with an additional room(s) ofsufficient volume so that the combined volume of all spaces meets the criteriafor an unconfined space. The total input of all gas utilization equipmentinstalled in the combined space shall be considered in making thisdetermination. Each opening shall have a minimum free area of 1 inch² (6.45cm²) per 1000 BTU (.29 kw) per hour of the total input rating of all gasutilization equipment in the confined space, but not less than 100 squareinches (645 cm²). One opening shall be within 12 inches (31 cm) of the topand one within 12 inches (31 cm) of the bottom of the enclosure.All Air From Outdoors: The confined space shall be provided with twopermanent openings, one commencing within 12 inches (31 cm) of the topand one commencing within 12 inches (31 cm) from the bottom of theenclosure. The openings shall communicate directly, or by ducts, with theoutdoors or spaces (crawl or attic) that freely communicate with the outdoors.1. When directly communicating with the outdoors, each opening shall havea minimum free area of 1 inch² (6.45 cm²) per 4000 BTU (1.2 kw) per hourof total input rating of all equipment in the enclosure.2. When communicating with the outdoors through vertical ducts, eachopening shall have a minimum free area of 1 inch² (6.45 cm²) per 4000BTU (1.2 kw) per hour of total input rating of all equipment in theenclosure.3. When communicating with the outdoors through horizontal ducts, eachopening shall have a minimum free area of 1 inch² (6.45 cm²) per 2000BTU (.6 kw) per hour of total input rating of all equipment in the enclosure.4. When ducts are used, they shall be of the same cross-sectional area asthe free area of the openings to which they connect. The minimumdimension of rectangular air ducts shall be not less than 3 inches (7.5cm).Specially Engineered InstallationsThe requirements noted under CONFINED SPACES above shall notnecessarily govern when special engineering, approved by the authorityhaving jurisdiction, provides an adequate supply of air for combustion,ventilation, and dilution of flue gases.12

WATER CONNECTIONSNote: BEFORE PROCEEDING WITH THE INSTALLATION, CLOSE THEMAIN WATER SUPPLY VALVE.After shutting off the main water supply, open a faucet to relieve the water linepressure to prevent any water from leaking out of the pipes while making thewater connections to the water heater. After the pressure has been relieved,close the faucet. The COLD water inlet and HOT water outlet are identified onthe top of the water heater. The fittings at the cold water inlet and hot wateroutlet are dielectric waterway fittings with ¾ inch NPT male thread. Make theproper plumbing connections between the water heater and the plumbingsystem to the house. Install a shut-off valve in the cold water supply line.CAUTIONIf sweat fittings are to be use, DO NOT apply heat to the nipples on top ofthe water heater. Sweat the tubing to the adapter before fitting theadapter to the water connections. It is imperative that heat is not appliedto the nipples containing a plastic liner.WARNINGFAILURE TO INSTALL AND MAINTAIN A NEW, LISTED ¾ INCH X ¾INCH TEMPERATURE AND PRESSURE RELIEF VALVE WILLRELEASE THE MANUFACTURER FROM ANY CLAIM, WHICH MIGHTRESULT FROM EXCESSIVE TEMPERATURE AND PRESSURES.If this water heater is installed in a closed water supply system, such as theone having a back-flow preventer in the cold water supply, provisions shall bemade to control thermal expansion. DO NOT operate this water heater in aclosed system without provisions for controlling thermal expansion. Yourwater supplier or local plumbing inspector should be contacted on how tocontrol this situationAfter installation of the water lines, open the main water supply valve and fillthe water heater. While the water heater is filling, open several hot waterfaucets to allow air to escape from the water system. When a steady streamof water flows through the faucets, close them and check all waterconnections for possible leaks. NEVER OPERATE THE WATER HEATERWITHOUT FIRST BEING CERTAIN IT IS FILLED WITH WATER.13

Installation (Water Connections) continued-WARNINGFor protection against excessive temperatures and pressure, installtemperature and pressure protective equipment required by localcodes, but not less than a combination temperature and pressurerelief valve certified by a nationally recognized testing laboratorythat maintains periodic inspection of production of listed equipmentor materials as meeting the requirements of the Standard for ReliefValves and Automatic Gas Shutoff Devices for Hot Water SupplySystems, ANSI Z21.22 or the Standard CAN1-4.4. Temperature andPressure and the Standard CAN1-4.4, Temperature, Pressure,Temperature and Pressure Relief Valves and Vacuum ReliefValves. The combination temperature and pressure relief valveshall be marked with a maximum set pressure not to exceed themaximum working pressure of the water heater. The combinationtemperature and pressure relief valve shall also have an hourlyrated temperature steam BTU discharge capacity not less than thehourly rating of the water heater.Install the combination temperature and pressure relief valve intothe opening provided and marked for this purpose on the waterheater.Note: Some models may already be equipped or supplied with acombination temperature and pressure relief valve. Verify that thecombination temperature and pressure relief valve complies withlocal codes. If the combination temperature and pressure reliefvalve does not comply with local codes, replace it with one thatdoes. Follow the installation instructions above on this page.Install a discharge line so that water discharged from thecombination temperature and pressure relief valve will exit within 6inches (15.2 cm) above, or any distance below the structural floorand cannot contact any live electrical part. The discharge line is tobe installed to allow for complete drainage of both the combinationtemperature and pressure relief valve and the discharge line. Thedischarge opening must not be subjected to blockage or freezing.DO NOT thread, plug or cap the discharge line. It is recommendedthat a minimum clearance of 4 inches (10.2 cm) be provided on theside of the water heater for servicing and maintenance of thecombination temperature and pressure relief valve.Do not place a valve between the combination temperature andpressure relief valve and the tank.14

Installation (Water Connections) continued-WARNINGHydrogen gas can be produced in an operating water heater that hasnot had water drawn from the tank for a long period of time (generallytwo weeks or more). Hydrogen gas is extremely flammable. Toprevent the possibility of injury under these conditions, we recommendthe hot water faucet to be open for several minutes at the kitchen sinkbefore you use any electrical appliance, which is connected to the hotwater system. If hydrogen is present, there will be an unusual soundsuch as air escaping through the pipes as hot water begins to flow. Donot smoke or have open flame near the faucet at the time it is open.This water heater can deliver scalding temperature water at any faucet in thesystem. Be careful whenever using hot water to avoid scalding injury. Certainappliances such as dishwashers and automatic clothes washers may requireincreased temperature water. By setting the thermostat on this water heaterto obtain the increased temperature water required by these appliances, thepotential for scald injury increases. To protect against injury, you shouldinstall an ASSE approved mixing valve in the water system. This valve willreduce point of discharge temperature by mixing cold and hot water in branchsupply lines. Such valves are available from the manufacturer of this waterheater or a local plumbing supplier. Please consult with a plumbingprofessional.Water temperature over 125 F(52 C) can cause severe burnsinstantly or death from scalds.Children, disabled and elderlyare at highest risk of beingscalded.Review this instruction manualbefore setting temperatureat water heater.Feel water before bathing orshowering.Temperature limiting valves areavailable.APPROXIMATE TIME/TEMPERATURE RELATIONSHIPS IN SCALDS120 F (49 C)More than 5 minutes125 F (52 C)1½ to 2 minutes130 F (54 C)About 30 seconds135 F (57 C)About 10 seconds140 F (60 C)Less than 5 seconds145 F (63 C)Less than 3 seconds150 F (66 C)About 1½ seconds155 F (68 C)About 1 second15

Gas ConnectionsThe gas supply lines must meet all requirements of the National Fuel Gas Code (ANSIZ223.1-Latest Edition), or

This gas-fired water heater is design certified by CSA International under the applicable American National Standard, Z21.10.1 or CSA 4.1-(as indicated on the rating plate), available from CSA International, 8501 East Pleasant Valley Road, Cleveland, OH U.S.A. 44131-5575. This water heater must be installed in accordance with local codes.