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IMPORTANT SAFETY INFORMATIONREAD ALL INSTRUCTIONS BEFORE USING.WARNING!For your safety, the information in this manual must be followed to minimize the risk offire or explosion, electric shock, or to prevent property damage, personal injury, or loss oflife.NOTICE: This water heater requires a special venting system. Refer to the instructionsin the vent section for proper vent material and method of installation.FOR INSTALLATIONS IN THE STATE OF CALIFORNIACalifornia Law requires that water heaters must be braced, anchored or strapped toresist falling or horizontal displacement due to earthquake motions. For water heaters upto 52 gallon capacity, a brochure with generic earthquake bracing instructions can beobtained from: Office of the State Architect, 1102 Q Street, Suite 5100, Sacramento, CA95814 or you may call 916-445-8100 or ask a water heater dealer.However, applicable local codes shall govern installation. For water heatersof a capacity greater than 52 gallons or tankless-style, consult the local buildingjurisdiction code for acceptable bracing procedures.SAFETY PRECAUTIONSHave the installer show you the location of the gas shut-off valve and how to shut it off ifnecessary. Turn off the manual shut-off valve if the water heater has been subjected tooverheating, fire, flood, physical damage or if the gas supply fails to shut off.l Read this manual entirely beforeinstalling or operating the water heater.l Use this appliance only for its intendedpurpose as described in this Use andCare Manual.l Do not attempt to repair or replace anypart of your water heater unless it isspecifically recommended in thismanual. All other servicing should bereferred to a qualified technician.l Be sure your appliance is properlyinstalled in accordance with local codesand the provided installationinstructions.READ AND FOLLOW THIS SAFETY INFORMATIONCAREFULLY.SAVE THESE INSTRUCTIONS6

Installing the water heater :This water heater must be installed in accordance with these instructions, local codes, utility companyrequirements, and/or in the absence of local codes, use the latest edition of the American NationalStandard/National Fuel Gas Code. A copy can be purchased from either the American Gas Association,400 North Capitol Street Northwest, Washington, DC 20001 as ANSI standard Z223.1 or National FireProtection Association, 1 Batterymarch Park, Quincy, MA 02269 as NFPA 54. In Canada, the latestedition of the CSA B149.1 Natural Gas and Propane Installation, and the Canadian Electrical Code,CSA C22.1 Part 1, in the absence of local codes.Location of Water HeaterThe water heater should not be locatedin an area where leakage of the heatexchanger or connections will result indamage to the area adjacent to it or tolower floors of the structure.When such areas cannot be avoided it isrecommended that a suitable catch pan,adequately drained, must be installedunder the water heater.The pan must not restrict combustion airflow.WARNING: Combustibleconstruction refers toadjacent walls and ceilingsand should not be confusedwith combustible orflammable products andmaterials. Combustibleand/or flammable productsand materials should neverbe stored in the vicinity ofthis or any gas appliance.A gas fired water heater or any otherappliance should not be installedin a space where liquids which give offflammable vapors are to be used or stored.Such liquids include gasoline, but are notlimited to, LP gas (butane or propane),paint or adhesives and their thinners,solvents or removers.Because of natural air movement in a roomor other enclosed space, flammable vaporscan be carried some distance from wheretheir liquids are being used or stored. Theopen flame of the water heater’s mainburner can ignite these vapors causing anexplosion or fire which may result in severeburns, death or property damage.The water heater must be located so it is notsubject to physical damage, for example, bymoving vehicles, area flooding, etc.If the water heater is installed in a garage, itshould be installed so that the directignition system and main burner are no lessthan 18 inches (45 cm) above the garagefloor.Raising the gas fired water heater willreduce BUT NOT eliminate the possibilityof lighting the vapor of any flammableliquids which may be improperly stored oraccidentally spilled.l The water heater should be installed asclose as practical to the vent terminationto minimize vent length and the numberof elbows required for venting.l The water heater should be installed withthe proper venting materials andtermination suitable for Category IIIventing.l A fire stop plate should be installed atevery penetration of a floor or ceiling ifthe vent is not running in a fire-ratedshaft.l Failure to install and properly vent thewater heater to the outdoors as outlinedin the Venting Section of this manual canresult in unsafe operation.l Long hot water lines should be insulated toconserve water and energy.l The water heater and water lines shouldbe protected from exposure to freezingtemperatures.l Do not install the water heater inbathrooms, bedrooms, any occupiedrooms normally kept closed, or inoutdoor areas.l Do not install the water heater in small,poorly ventilated rooms, or in air tightrooms with air-conditioning.l Do not install water heater where subjectto vibrations.l Do not install the water heater inRecreational Vehicles, Mobile Homes,Boats and other Watercrafts.l Do not install the water heater near ventsfor heating or cooling. A minimum of 4feet (1.2 m) should be maintained.l Minimum clearance from combustibleand non-combustible construction is 0”around the air intakes pipe, 1/2” (1.3 cm)sides, 0” rear (with support bracket); 12”(30 cm) from the bottom; 12” (30 cm)from the front of the water heater; and12” (30 cm) from the top, (24” (61 cm)from front and top is recommended forservicing purposes). Refer to Figure onpage 8.l Maintain a minimum clearance of1” (2.5 cm) between the vent outlet pipeand air intake pipe. Also, maintain a 3”(8 cm) clearance between the vent pipeand combustible or non-combustibleconstruction, unless otherwise specifiedby vent manufacturer or installed in anenclosed space. If the clearances statedon the Instruction/Warning Label,located on the front panel of the heaterdiffer, install the water heater accordingto the clearances stated on the label.Refer to Figure on page 8.7

Installing the water heater:Location of Water Heater continued:Notice: Maintain a1/4” Per foot downwardslope towards termination3” (8 cm) clearancebetween the vent pipeand combustible ornon-combustibleconstruction.AirIntake PipeVentOutlet Pipe1” (2.5cm) min.between vent outletand air intake pipe.Max. 3’(91 cm)Air intake/Vent pipetermination - shouldbe sloped downwardWARNING: Followvent manufacturersinstruction whileinstalling vent. Ifrequired, provideadditional clearancesfrom vent tocombustibles per ventmanufacturersinstruction.NOTICE: The water heatershould not be installed nearan air supply containinghalogenated hydrocarbons.VentOutletMinimum Clearance fromCombustible and NonCombustible Construction.AirIntakeTop 12"(30 cm)Back 0" *Vent 3" (8 cm)Side 1/2" (1.3 cm)Front 12"(30 cm)Bottom 12" (30 cm)Air Intake 0”* (with support bracket)Corrosive AtmospheresThe air in beauty shops, dry cleaningestablishments, photo processing labs,and storage areas for liquid and powderedbleaches or swimming pool chemicalsoften contain such halogenatedhydrocarbons.An air supply containing halogenatedhydrocarbons may be safe to breathe,but when it passes through a gas flamecorrosive elements are released thatwill shorten the life of any gas burningappliance.Propellants from common spray cans orgas leaks from A/C and refrigerationequipment are highly corrosive afterpassing through a flame.The water heater warranty is voided whenfailure of the heater is due to operation ina corrosive atmosphere.Inspect ShipmentInspect the water heater for possible damage. Check the markings on the rating plate ofthe water heater to be certain the type of gas supplied corresponds to the water heaterrequirements. Verify all included parts are present (see below).Use & Care ManualWith Installation Instructions for the InstallerTankless Water HeatersResidential GasWarning: This water heater is not suitable foruse in manufactured (mobile) homes!The purpose of this manual is twofold: one, to provide the installer withthe basic directions and recommendations for the proper installation andadjustment of the water heater; and two, to the owner–operator, toexplain the features, operation, safety precautions, maintenance andtroubleshooting of the water heater. This manual also includes a partslist.PRIORITYIt is imperative that all persons who are expected to install, operate oradjust this water heater read the instructions carefully so they mayunderstand how to perform these operations. If you don’t understandthese instructions or any terms within it, seek professional advice. FWood Screw x 5pcs.!Recognize this symbol as an indication of Important SafetyInformation!!California Proposition 65 Warning: This product containschemicals known to the State of California to cause cancer, birthdefects or other reproductive harm.WARNING: If the information in these instructions is not followed exactly,a fire or explosion may result causing property damage, personal injury or death.! FOR YOUR SAFETY!— Do not store or use gasoline or otherflammable vapors or liquids or othercombustible materials in the vicinity of this orany other appliance. To do so may result in anexplosion or fire.ON/OFF8Do not destroy this manual. Please read carefully and keep in a safeplace for future reference.!POWERDrain TubingAny questions regarding the operation, maintenance, service orwarranty of this water heater should be directed to the seller from whomit was purchased. If additional information is required, refer to thesection on How to Obtain Service Assistance.— WHAT TO DO IF YOU SMELL GASl Do not try to light any appliance.l Do not touch any electrical switch; do notuse any phone in your building.l Immediately call your gas supplier from aneighbor’s phone. Follow the gassupplier’s instructions.l If you cannot reach your gas supplier, callthe fire department.l Do not return to your home until authorizedby the gas supplier or fire department.— Improper installation, adjustment,alteration, service or maintenance can causeproperty damage, personal injury, or death .Refer to this manual. Installation and servicemust be performed by a qualified installer,service agency or the gas supplier.DESIGNRemote ControlAssembly KitManual ApplianceUse & Care Manual Gas Shut-off ValvePrinted in USAWasher x 4 pcs.CERTIFIED Tankless Unit

The water heater must be installed with a 4” Diameter UL approved Category III Stainless Steel vent pipe,appliance vent adapter and Paloma approved vent termination.DANGER: Failure toinstall the appliance ventadapter and properly ventthe water heater to theoutdoors as outlined in theVenting section of thismanual will result in unsafeoperation of the waterheater causing death,serious injury, explosion, orfire. To avoid the risk offire, explosion, orasphyxiation from carbonmonoxide, NEVER operatethe water heater unless it isproperly vented and hasadequate air supply forproper operation asoutlined in the Ventingsection of this manual.Notice: Use a 4” DiameterUL approved Category IIIStainless Steel vent materialonly. No other ventmaterial is permitted.VentingThe installation of venting must comply withnational codes, local codes, and the ventmanufacturer’s instructions.Notes on pre-existing vent:The water heater must be vented to theoutdoors as described in these instructions.DO NOT connect this water heater to aChimney. It must be vented separately fromall other appliances.All vent components (adapters, pipe, elbows,terminals, etc.) should be UL1738 CertifiedStainless Steel Venting Material(e.g. AL29-4C).Use a vent pipe with an anti-disconnectionjoints.The use of a High Temperature Silicone(500 F) (260 C) may be required to sealvent connections. To prevent accidental gasexhaust leakage, apply a 1/4” (6 mm) widebead approximately 1/4” (6 mm) from theend and another bead against the joint sideof the stop bead.Follow vent manufacturer’s installationinstructions and their recommendedclearances to combustibles.The unit can be vented either horizontally orvertically.WARNING: Refer topage 7 & 8 for clearancesto combustible material.should be used. DO NOT use wire. (SeeFigure below).Vent pipe runs must be adequately supportedalong both horizontal and vertical runs.The maximum recommended unsupportedspan should be no more than five (5) feet(1.5 m) Support isolation hanging bandsIf the water heater is being installed as areplacement for an existing water heater, athorough inspection of the existing venting andair intake system must be performed prior toany installation work. Verify that the correctmaterials, vent lengths and terminal locations asdetailed in this Instruction manual have beenmet. Carefully inspect the entire venting and airintake system for any signs of cracks orfractures, particularly at the joints betweenelbows or other fittings and the straight runs ofvent pipe. Check the system for signs ofsagging or other stresses in the joints as a resultof misalignment of any components in thesystem. If any of these conditions are found,they must be corrected in accordance with theventing instructions in this manual beforecompleting the installation and putting thewater heater into service.Additional installation information for TheCommonwealth of Massachusetts is located onpage 36.Venting LengthsNumber of90 elbows(bends)MaximumLength ofStraight Pipe147’ 6”(14.4 m)242’ 6”(13 m)MAXIMUM VENT LENGTH - Thesystem will not operate if there is excessiverestriction (pressure drop) in the ventingsystem. A maximum of 47 feet 6 inches(14.4 m) of vent pipe may be used providedthere is only one 90 elbow in the system. Ifadditional elbows are required: two elbowscan be used with 42 feet 6 inches (13 m),and three elbows can be used with 37 feet 6inches (11.4 m) of vent pipe.337’ 6”(11.4 m)A 90 elbow is equivalent to 5 feet (1.5 m)of straight pipe. A 45 elbow is equivalent to2 feet 6 inches (76 cm) of straight pipe.MINIMUM VENT LENGTH - The ventlength may be as short as one 90 elbow, onevent adapter, and a Paloma approved venttermination kit that is installed to theoutdoors through a sidewall.6”1’The vent should be installed with a slightdownward slope of 1/4” per foot ofhorizontal run toward the vent terminal (seeFigure on page 8). This ensures that anycondensate formed during operation of theunit is evacuated from the appliance.9

Installing the water heater:The water heater must be installed with an UL approved Category III Stainless Steel appliance vent adapterand Paloma approved vent termination.Air Intake1/4” Per foot downwardslope towards terminationVent Outlet PipeVenting Through Closed SpacesIf the vent piping passes through a closed space, a minimumclearance of 8” (20 cm) when installed horizontally, 6” (15 cm)when installed vertically should be maintained between the ventpipe and combustibles and noncombustibles. Be sure to followlocal codes and vent manufacturers installation instructions.For maintenance and inspection purposes, the following accesspanels are required.Fire StopInspectionAccessPanel #1 CeilingBoardInspectionAccessPanel #2l Two (2) inspection access panels large enough to allowaccess for venting inspection. One (1) of these accesspanels should be close to where the vent pipe enters theceiling. The other access panel should be near the venttermination.l A ventilation access panel with a 16 in2 (103 cm2) openingshould be provided every 10 ft (3 m).Appliance Vent AdapterCAUTION: Ensureappliance vent adapter issecurely attached to thewater heater collar.ExhaustFlowRead the following instructions beforeinstallation.l Test fit the adapter over the waterheater collar before proceeding. Adjustclamp as tA UL 1738 approved stainless steelappliance vent adapter is required for ventconnection.ClampCollarl With an alcohol wipe, clean insidesurface "A" of adapter and outsidesurface of "B" of heater collar.l Apply 1/4" (6 mm) wide bead of hightemperature silicone (500 F) (260 C)around outside of heater collar "B".l Slide adapter end "A" down over heatercollar "B" as far as it will go.l Tighten the clamp around the collar.l Inspect the inside of the adapter toverify that the collar and adapter aresealed. If more sealant is required,apply sealant to a flat tool, then spreadaround the collar edge on inside ofadapter.NOTICE: Follow the appliance ventadapter manufacturer’s instructionsDraining the CondensateCAUTION:Condensateis known to be acidic; referto local, state (provincial)or federal codes for properhandling and dischargemethods.CAUTION: Condensatemust drain away from thewater heater and shouldnot be allowed to drainback into any part of thevent system.WARNING: Failure toprovide a vent condensatedrain close to the appliancecould allow acidic flue gascondensate to enter intoappliance flueways causingpremature failure of theappliance.10Horizontal VentingProvision should be made to collect anddispose of condensate from ventingsystems.When a water heater is vented horizontallythe vent pipe should have a downwardslope towards the vent termination. Thevent should have a 1/4” per footDOWNWARD slope towards the ventterminal as shown above.If the air intake pipe or duct is connectedto the bottom of the air intake tee, acondensate trap must be installed as closeas practical to the air intake tee to drainany water which may enter the air intaketermination away from the heater. See theFigure on the right.Vertical VentingIn order to prevent condensate fromdraining back into the water heaterinstalled in a vertical installation, acondensate trap and drain must beinstalled in a horizontal vent section (SeeFigure on page 15), as close as practical tothe water heater. An UPW

Failure to install 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 .