{"product_id":"york-s1-6421652-two-stage-sse-hvac-control-board-with-communication-support","title":"York S1-6421652 Two-Stage SSE HVAC Control Board with Communication Support","description":"\u003ch4 class=\"PDq2pG_selectionAnchorContainer\"\u003eDescription\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThe York S1-6421652 Two-Stage Control Board is an OEM HVAC circuit board designed to manage system operation, compressor staging, and equipment communication functions. It provides control sequencing for York air conditioners and heat pump systems, helping maintain efficient performance, stable temperature regulation, and system protection. The board is designed for reliable integration into compatible York SSE HVAC equipment.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYork\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHVAC Controls\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eS1-6421652\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHVAC Control Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTwo-Stage Circuit Control Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSSE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAir conditioners and heat pump systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl Stages\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2-stage compressor control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCommunicating HVAC system support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFirmware Version\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVER 4.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCompressor sequencing, system control, and equipment management\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYork SSE HVAC equipment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput\/Output Control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHVAC sensor and component interface control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBoard Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectronic printed circuit control assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInternal HVAC equipment control compartment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplacement Use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOEM replacement for compatible York systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Environment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHVAC indoor and outdoor equipment applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYork (Johnson Controls)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApproximately 0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About \u003cspan\u003eS1-6421652\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eThe S1-6421652 is part of the York SSE HVAC control board family, developed to provide centralized electronic management for residential and light commercial heating and cooling equipment. It controls two-stage compressor operation, system inputs, outputs, and communication functions to optimize equipment performance under changing load conditions. The board features version 4.4 firmware configuration and is designed for compatibility with York communicating HVAC systems. It supports accurate system coordination, improved energy management, and dependable operation through intelligent control of connected HVAC components.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTwo-Stage Compressor Control: Manages dual-stage compressor operation for improved temperature control and system efficiency.\u003c\/li\u003e\n\u003cli\u003eOEM York Circuit Board: Designed as a genuine replacement control solution for compatible York HVAC equipment.\u003c\/li\u003e\n\u003cli\u003eSSE System Compatibility: Developed for York SSE series air conditioners and heat pump applications.\u003c\/li\u003e\n\u003cli\u003eCommunication Capability: Supports communication between HVAC system components for coordinated operation.\u003c\/li\u003e\n\u003cli\u003eVersion 4.4 Configuration: Includes factory firmware version specification for compatible equipment platforms.\u003c\/li\u003e\n\u003cli\u003eHVAC System Management: Controls operational sequences, safety functions, and equipment responses.\u003c\/li\u003e\n\u003cli\u003eEnergy Optimization: Enables staged operation to reduce unnecessary energy consumption.\u003c\/li\u003e\n\u003cli\u003eImproved Comfort Control: Helps maintain consistent temperature and humidity conditions.\u003c\/li\u003e\n\u003cli\u003eSystem Protection Functions: Provides monitoring and control logic for safe HVAC operation.\u003c\/li\u003e\n\u003cli\u003eReplacement Application: Suitable for restoring functionality in existing York systems with failed control boards.\u003c\/li\u003e\n\u003cli\u003eElectronic Control Platform: Uses solid-state circuitry for reliable long-term operation.\u003c\/li\u003e\n\u003cli\u003eMulti-Component Coordination: Interfaces with compressors, sensors, and other HVAC system devices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe S1-6421652 delivers the reliability and precision required for HVAC control systems, two-stage compressor management, and equipment replacement applications.\u003c\/p\u003e","brand":"York","offers":[{"title":"Default Title","offer_id":52186081558826,"sku":"S1-6421652","price":1599.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/s-l1200_7a22ae63-e43e-4b54-a7ed-75124020c37c.jpg?v=1786038078","url":"https:\/\/iqelectro.com\/products\/york-s1-6421652-two-stage-sse-hvac-control-board-with-communication-support","provider":"IQElectro","version":"1.0","type":"link"}