{"product_id":"westinghouse-669566r-txv-r-410a-3-ton-air-handler","title":"Westinghouse 669566R Txv R-410A 3 Ton Air Handler","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe WESTINGHOUSE 669566R is a thermal expansion valve (TXV) designed for use with R-410A refrigerant in residential variable speed indoor air handler systems. Rated at 3 tons of cooling capacity, this TXV meters refrigerant flow into the evaporator coil, maintaining the correct superheat level across the operating range of the system. It is a direct OEM-style replacement component installed by licensed HVAC technicians during system servicing, coil replacement, or refrigerant circuit repair on compatible WESTINGHOUSE air handler equipment.\u003c\/p\u003e\n\u003cp\u003eThis TXV is specified for use with the WESTINGHOUSE PAH4VM-X36K-B variable speed indoor air handler, part of the PAH4VM model family. Variable speed air handlers require precisely matched expansion devices to support proper system efficiency and capacity at varying compressor and blower speeds. Installing the correct 3-ton R-410A TXV ensures the refrigerant circuit operates within design parameters across all system stages.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eRated for 3-ton cooling capacity with R-410A refrigerant\u003c\/li\u003e\n  \u003cli\u003eDesigned specifically for variable speed indoor air handler applications\u003c\/li\u003e\n  \u003cli\u003eOEM-specified replacement part for the PAH4VM-X36K-B air handler\u003c\/li\u003e\n  \u003cli\u003eControls refrigerant superheat for efficient evaporator coil operation\u003c\/li\u003e\n  \u003cli\u003eDirect fitment eliminates field modification during installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eSpecified for the WESTINGHOUSE PAH4VM-X36K-B variable speed indoor air handler (model family: PAH4VM).\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eTXV replacement is performed by EPA Section 608 certified HVAC technicians. Recover all refrigerant from the system before opening the refrigerant circuit. Follow all applicable mechanical and refrigeration codes, including local jurisdiction requirements, when brazing or connecting refrigerant lines. After installation, leak-check all connections and perform a proper system evacuation before recharging with R-410A refrigerant.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Type\u003c\/strong\u003e: Thermal Expansion Valve (TXV)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRefrigerant\u003c\/strong\u003e: R-410A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCapacity\u003c\/strong\u003e: 3 Ton\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Variable Speed Indoor Air Handler\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Unit Part Number\u003c\/strong\u003e: PAH4VM-X36K-B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Model Family\u003c\/strong\u003e: PAH4VM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: WESTINGHOUSE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 669566R\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WESTINGHOUSE","offers":[{"title":"Default Title","offer_id":51284146946354,"sku":"669566R","price":142.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/309277933.jpg?v=1781069777","url":"https:\/\/voomisupply.com\/products\/westinghouse-669566r-txv-r-410a-3-ton-air-handler","provider":"Voomi Supply","version":"1.0","type":"link"}