{"product_id":"jandy-complete-heat-exchanger-assembly-for-350-hi-e2®-heater-r0303805","title":"Jandy Complete Heat Exchanger Assembly for 350 Hi-E2® Heater | R0303805","description":"\u003ch2\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eJandy R0303805 Complete Heat Exchanger Assembly\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a genuine OEM replacement designed specifically for \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eJandy Hi-E2® Model 350 pool and spa heaters\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis complete \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ecopper heat exchanger assembly\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e transfers heat generated by the heater into the circulating pool or spa water. It is designed as a factory replacement for a leaking, corroded, damaged, or failed original heat exchanger in compatible Hi-E2 350 heaters.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor commercial facilities, hotels, aquatic centers, residential pools, and other demanding applications using a Jandy Hi-E2 350 heater, replacing a damaged heat exchanger with the correct OEM assembly helps restore proper heater performance and reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eGenuine Jandy \/ Zodiac OEM replacement part\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eManufacturer Part Number: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eR0303805\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eComplete heat exchanger assembly\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDesigned specifically for \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eJandy Hi-E2 Model 350 heaters\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eCopper heat exchanger construction\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFactory-style replacement for the original heat exchanger\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDesigned for pool and spa heating applications\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for residential and commercial Hi-E2 installations\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProfessional installation strongly recommended\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCompatibility\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eJandy R0303805\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is designed for:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eJandy Hi-E2® Model 350 Pool Heater\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eJandy Hi-E2® 350 Pool \u0026amp; Spa Heater\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompatible 350-size Hi-E2 heater configurations using the factory copper heat exchanger\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eManufacturer\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eJandy \/ Zodiac\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eComplete Heat Exchanger Assembly\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eManufacturer Part Number\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eR0303805\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHeater Series\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHi-E2®\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHeater Size\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e350\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHeat Exchanger Material\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCopper\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eApplication\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePool \u0026amp; Spa Heater\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOEM Replacement\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYes\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eUPC \/ GTIN\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e052337013604\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInstallation\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eProfessional Installation Recommended\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cspan\u003eCopper vs. Cupronickel\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIt is important to verify which heat exchanger material is required before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eR0303805\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Complete \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eCopper\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Heat Exchanger Assembly for Hi-E2 350\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eR0523705\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Complete \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eCupronickel\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Heat Exchanger Assembly for Hi-E2 350\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThese parts should not be confused with one another. Verify the original heater configuration and heat exchanger material before replacement.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhen Should a Heat Exchanger Be Replaced?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eCommon signs of a failing Hi-E2 heat exchanger can include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eWater leaking from inside the heater\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVisible corrosion\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCracked or damaged tubing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReduced heating performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWater entering areas of the combustion chamber\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRepeated header or exchanger leakage\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSignificant mineral buildup or internal deterioration\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eBefore replacing the heat exchanger, the underlying cause of failure should be identified.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eImproper pool water chemistry, excessive chlorination, low pH, inadequate water flow, scaling, or improper heater operation can shorten heat exchanger life.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eComplete Assembly vs. Tube Assembly\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eR0303805 is the complete heat exchanger assembly\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, rather than only the replacement tube bundle.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor reference:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eR0303805\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Complete Copper Heat Exchanger Assembly\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003e10839405\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Copper Heat Exchanger Tube Assembly\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eR0303900\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Inlet\/Outlet Header\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eR0304000\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Return Header\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eR0304300\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Header Gasket\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eR0304400\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Bypass Valve Assembly\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eChoosing the complete assembly can be beneficial when multiple components of the existing heat exchanger system are deteriorated or damaged.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eInstallation Information\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eReplacing a heat exchanger requires substantial disassembly of the heater and should be performed by a qualified pool-heater technician.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePrior to installation, verify:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eHeater model is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eHi-E2 350\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eExisting exchanger is the copper configuration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePlumbing flow is within manufacturer specifications\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePool and spa water chemistry is properly balanced\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHeater bypass components are operating correctly\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHeader connections and plumbing are properly aligned\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThe original heat exchanger failure has been diagnosed\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eCorrect installation and balanced water chemistry are critical to maximizing the life of the replacement heat exchanger.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eDoes R0303805 fit the Jandy Hi-E2 350?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eYes. R0303805 is the OEM complete copper heat exchanger assembly specified for the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eJandy Hi-E2 Model 350\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e heater.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs R0303805 copper or cupronickel?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eR0303805 is the copper version.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe cupronickel heat exchanger assembly for the Hi-E2 350 is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eR0523705\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this the complete heat exchanger?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eYes. R0303805 is identified as the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ecomplete heat exchanger assembly\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, not simply the copper tube bundle.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the tube-only assembly?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe copper heat exchanger tube assembly for the Hi-E2 350 is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e10839405\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan this be installed on a different Hi-E2 heater size?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis part is specifically identified for the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e350-size Hi-E2 heater\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Always verify the heater model and serial information before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eShould a professional install this part?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. Heat exchanger replacement involves the heater's water, combustion, and safety systems. Installation by a qualified pool-heater technician is strongly recommended.\u003c\/span\u003e\u003c\/p\u003e","brand":"Jandy","offers":[{"title":"Default Title","offer_id":54624905920822,"sku":"R0303805","price":4499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/1167\/9798\/files\/OIP_be8d3692-bfbc-4639-8b87-d1defb869952.jpg?v=1790096842","url":"https:\/\/poolsupplydepot.net\/products\/jandy-complete-heat-exchanger-assembly-for-350-hi-e2%c2%ae-heater-r0303805","provider":"Pool Supply Depot","version":"1.0","type":"link"}