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Keltech Electric Tankless Water HeatersCNA SERIESFluid heating for heavy industrial applicationsContentsPRECISE. RELIABLE. DURABLE. TANKLESS.2Keltech Electric Tankless Water Heaters3CNA Series Overview4Standard Features6Optional Features8Design on Demand SolutionsBRADLEYCORP.COM

KELTECHELECTRIC TANKLESSWATER HEATERSEfficient. Precise. Fast.Keltech is the recognized leader in commercialelectric tankless water heating systems. Whetheryour application is industrial, hotels, stadiums, foodprocessing, or safety, there is a Keltech tanklesswater heating solution. With unmatched quality anddurability, Keltech manufactures the fastest, mostreliable, and most efficient tankless water heaters inthe industry.Keltech tankless heaters are offered in a full line ofproducts for an extensive range of applications aswell as custom designs for unique environments.Keltech tankless water heaters have been on themarket for over 25 years and are now an integralpart of Bradley Corporation's water heatingsolutions. For 95 years, Bradley has manufacturedcommercial safety, water tempering, and washroomproducts. Today, Bradley is the industry's mostcomprehensive source of commercial andindustrial plumbing fixtures, tankless water heaters,washroom accessories, partitions, emergencyfixtures, and plastic lockers. Save Energy Inefficient boiler systems have to generate heatand maintain temperature 24 hours per day, 7days per week. Keltech tankless heaters only heatwater when needed. And, Keltech's innovativecontroller is fully modulating so you only use theactual kW needed, not full power or stages. Save SpaceA large commercial tank water heater requires alarge space. Keltech tankless water heaters onlyrequire 3 square feet (0.3 square meters) of spaceto generate up to 491,000 BTUs. Simple Installation Requires only one electrical connection andwater. No pumps, no external fusing, and nodesign needs to be considered externally –it's all built into the heater. Simple to Maintain No tank to maintain, no anodes, no softeners. Simply the Best Built to the toughest standards with the highestquality materials and engineered to meet theworld's most demanding applications.2CNA SERIESHEAVY INDUSTRIAL APPLICATIONS

CNA SeriesCNA Series heaters are designed specifically for heavy industrial fluid applications. Heaters activate only whenneeded and provide an unlimited supply of hot water to meet the needs of your heavy industrial application.Heaters activate at 1.5 GPM (5.7 L-Min) and can handle water flow up to 50 GPM (189 L-Min).Depending on the application, Keltech can also offer a turnkey solution with one of the pre-assembled andtransportable Design on Demand Skid Series products featuring CNA heaters.Key markets & applicationsMarkets include mining, breweries/wineries, petro/chemical, food & beverage, agriculture/livestock, lumber/pulp/papermills, waste water treatment plants, power generation and nuclear.Applications include scrubbers, nuclear reactor washdown, classified areas, snow melt, heating consumables,heating jacketed equipment, stadium/ice arena resurfacer filling, chemical process heating direct/indirect, biodiesel production, fracking injectables and washdowns (parts, vats, containers, large eqiupment).Whatever your specific application is, Keltech has a tankless heating solution.kW Range36 - 144 kWCode Compliance& Certifications Flow Range1.5 - 50 GPM (5.7 - 189 L-Min)Standard Voltages480V, 600V 3-Phase Delta Lead-FreeBrass/Copper heat exchangers certified to NSF/ANSI 372 Third-Party CertifiedETL listed to UL499, UL50E, NFPA 496 (for hazardous locations)C-ETL listed to CSA-C22.2 No.88. Compliant to NEC/NFPA 70 and Canadian Electrical Code C22.1 ASME CertifiedKeltech CNA units (63 kW and over) are the only electric tankless water heatersNatonal Board certified with the HLW stamp.3

CNA SERIESSTANDARD FEATURES STANDARD FEATURESPID Temperature ControllerMore energy efficient and reliablethan traditional microprocessors,Keltech heaters hold temperatureas demand changes regardless ofincoming ground water temperature.Power is infinitely variable, withno fixed inputs. The PID controllermakes it possible to modulate theamount of power applied to theelements while also dispersingthe required power evenly acrossall elements. This unique featureincreases the product’s life cycle.Simple Touch OperationDigital LED screenwith touch padfor easy operationshows set pointand outputtemperature.Precise Temperature Range & FlowThe electronic power modulationsystem can control outlet watertemperature to within /- 1 F( /-0.56 C) over a wide range offlow rates. Precision temperaturecontrols make Keltech tanklesswater heaters the preferred choicefor process heating applicationsor an alternative to high energyconsuming boiler use.4Incoloy 800Elements Recognized forextending thelife of the metalcomponents.Provides protection, durability andresistance to scaling from hardwater. Water is only heated whenflowing; this means sediment willnot collect in the heat exchanger.Liquid-CooledSolid State RelaysLiquid-cooled,solid staterelays providesilent switchingwhich has a faster response thanmechanical relays to help maintainan accurate temperature. Relayswitching controls also provide aninfinitely variable power draw.Low Watt Density ElementExtremely low wattage is appliedper square inch of the element forimproved heat transfer & reducedscaling which results in a longerlasting element.Auto Reset High Limit SwitchInternal circuit breakers monitorfor over temperature conditionsand ensure individual chambersdo not exceed standards. Shouldthe heater’s safety circuits sense aproblem prior to manual shut down,power is safely interrupted ata mechanical relay.Electrical Design Requires onlyone service feedper unit. Includesinternal fusing asstandard, whichprovides superior protection. Unitshave a delta wiring system and donot require a neutral.Recirculation CapableKeltech heaters can be installedwithin a recirculation system, savingmoney and energy while providingdesired temperature on demand.Bi-metalManual ResetsEvery heaterthat Keltechengineers includesa separateset of circuits that monitor overtemperature conditions. Shouldoverheating occur, each sector ofthe heat exchanger has a dedicatedthermal switch that breaks power.Normal operation cannot beresumed until the safety switch ismanually reset.

CNA SERIESSTANDARD FEATURES STANDARD FEATURESNEMA 4 EnclosuresStandard floor cabinet enclosureis NEMA 4 rated and constructedof 14 gauge steel with corrosionresistant paint. Enclosure protects thecomponents of the heavy industrialheater from dust and water.Minimal Pressure DropKeltech's best in industry low pressuredrop reduces or eliminates the need& expense associated with addingpressure booster pumps.Durable Plumbing AssemblyAll units consist of brazed joints,a brass and copper heat exchanger,industrial-grade flow sensor andbrass castings/fittings at all directionalchanges.Premium MaterialsAll waterways consistof high-qualitycopper and brassconstruction testedto 300 PSI (20.7bar). Robust lead-free brass castings& flanges are CNC cut from solid brassblanks for precision fit. High-qualitycopper and brass construction extendthe life of the heat exchanger.ActivationRequirementsOn-demandheaters require aminimum flow ratefor activation. Waterheaters come standard with 1.5 GPM(5.7 L-Min) activation set point and canprovide flow up to 50 GPM (189 L-Min).Minimum flow requirements providemaximum efficiency.Independent & Redundant SafetiesKeltech heavy industrial heatersinclude multiple features thatensure years of reliable serviceand the safety of your employees.Reliable Performance& Minimal MaintenanceThe heater maintenance schedulefalls within the normal facilitiesmaintenance program requirements.LED indicators, test buttons, andreset buttons on the front coverdramatically reduce the need to openthe enclosure making maintenance ortroubleshooting even easier.Easy to InstallHeaters can be floor-mounted almostanywhere. Without a traditional tankthe CNA Series saves space in anyinstallation location.BIM-REVIT MODELS AVAILABLE FOR ALL KELTECH SERIES @BRADLEYCORP.COM5

CNA SERIESOPTIONAL FEATURESNEMA 4X EnclosuresFor harsh environments, NEMA 4Xwatertight enclosures are availablefor an additional level of protection.Enclosures made from 304 or 316stainless steel.Internal Fused DisconnectThe internal fused disconnectinterlocks with the enclosure doorwhen energized, prohibiting accessto a live cabinet. There is no need toinstall an external disconnect.Building ManagementSystems IntegrationTransfers control of the heater toa Building Management System(BMS). Heater is no longer adjustedor controlled at heater location, acomputer interface integrateswith the BMS.Integral Ground FaultDetects electrical leakage fromexternal sources & protects theequipment, electronics and heatexchanger by terminating powerto the elements and disablingoperation of the unit.High Temperature PackageStandard temperature range is40-160 F (4-71 C). With the hightemperature package, heaters canreach & maintain settings as high as160-190 F (71-88 C).Freeze Protection PackageFor temperatures lower than 33 F(0.56 C), Keltech offers two freezeprotection packages. ENHT offersprotection to -20 F (-29 C) & ENHT30offers protection to -30 F (-34 C).Includes internally insulated NEMA4/4X enclosure and thermostaticallycontrolled heater to maintain internaltemperatures above freezing.ASME Heat ExchangerUnits 63 kW & higher have the optionto be fitted with internal plumbingcertified to Section IV of the ASMEBoiler & Pressure Vessel Code an industry exclusive certification.TE and TE2 Protection System:Deionized Water Solutions &Corrosive Fluid ProtectionExclusive TE & TE2 Protection optionsprotect the heat exchanger fromcorrosive fluids including deionizedwater, chlorides, saltwater solutions,reverse osmosis water and causticalkalis. Keltech uses bright annealed,passivated stainless steel elements;all stainless steel plugs and fittingsare also used.TE Protection is recommendedwhen corrosion is a concern. It isFDA approved for use with deionizedwater or mild corrosive fluidapplications. The PFA Teflon dualcoating protects all heat exchangersurfaces that come in contact withheated fluids.TE2 Protection is recommendedwhen fluid purity is critical (e.g. toheat de-ionized water). To conformto FDA regulations governing directfood contact applications, this optionincludes a single layer of Xylan Fluoropolymeric coating on allsurfaces and internal passagewaysthat come in contact with the heatedmedia.Choose the TE or TE2 protectivecoating option for: Media Purity: no contaminationof heated fluids Non-stick: very low adhesion propertiesfor best possible flow characteristics Virtually inert: resists change or destructiondue to chemicals or corrosion Thermal Stability: resists change due totemperature fluctuations Washing solid-state devices, printed circuitboards, parts and aluminum productsand/or equipment Heating corrosive and/ornon-flammable liquids Desalination systemsDesign on Demand Custom SolutionsCNA Series heaters are engineered for durability and performance in any heavy industrial application. And, when uniqueenvironments require innovative solutions, Bradley Engineers design custom systems for any heating need: When recirculation or a booster heater is needed, Keltech fully- When the run is too long or pressure is too low, Keltech booster Work directly with a Keltech System Design Consultant.6modulating liquid-cooled heaters are the perfect solution.Custom solutions available for your unique application requirements.systems are pre-piped and ready to be installed in Series or in parallel.