{"product_id":"honeywell-q539a1147-thermostat-subbase-cool-off-heat-single-transformer-taupe","title":"Honeywell Q539A1147 Thermostat Subbase Cool-Off-Heat Single Transformer Taupe","description":"\u003ch4\u003eDescription\u003c\/h4\u003e\n\u003cp\u003eThe Honeywell Q539A1147 is a thermostat subbase designed to support heating and cooling control systems with reliable switching functionality. This taupe-colored subbase accommodates cool-off-heat configurations and operates with a single transformer setup. It provides secure wiring connections and precise control support for residential and light commercial HVAC systems.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\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\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHVAC Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eQ539A1147\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThermostat Subbases\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHeating\/Cooling (Cool-Off-Heat)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransformer Requirement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle Transformer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTerminal Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLetter-Coded Screw Terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAnticipator Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCooling Anticipator Included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWall Mount or Outlet Box Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTaupe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHoneywell Thermostats and Similar Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eResidential and Light Commercial HVAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccessory Support\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOptional Adapter Plate or Cover Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.5 lbs\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 Q539A1147\u003c\/h4\u003e\n\u003cp\u003eThe Q539A1147 is part of Honeywell’s thermostat accessory range, engineered to serve as a mounting and wiring interface for compatible thermostats. It features letter-coded screw terminals and an integrated cooling anticipator to ensure accurate temperature control and stable system performance. Designed for versatility, it supports a wide range of heating and cooling applications, including single-stage HVAC systems. The unit can be mounted directly on a wall or installed on an outlet box using optional adapter accessories, making it suitable for both new installations and retrofits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCool-Off-Heat Configuration: Supports standard HVAC switching modes for heating and cooling systems\u003c\/li\u003e\n\u003cli\u003eSingle Transformer Compatibility: Designed for systems using a single transformer power supply\u003c\/li\u003e\n\u003cli\u003eIntegrated Cooling Anticipator: Enhances temperature control accuracy and system efficiency\u003c\/li\u003e\n\u003cli\u003eLetter-Coded Terminals: Simplifies wiring and reduces installation errors\u003c\/li\u003e\n\u003cli\u003eWide Application Range: Compatible with various heating, cooling, and combined systems\u003c\/li\u003e\n\u003cli\u003eDirect Wall Mounting: Allows straightforward installation without additional hardware\u003c\/li\u003e\n\u003cli\u003eOutlet Box Compatibility: Can be mounted using optional adapter plate or cover ring\u003c\/li\u003e\n\u003cli\u003eDurable Construction: Built for long-term use in HVAC environments\u003c\/li\u003e\n\u003cli\u003eClean Aesthetic Design: Taupe finish blends with standard thermostat installations\u003c\/li\u003e\n\u003cli\u003eSecure Electrical Connections: Screw terminals ensure stable and reliable wiring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Q539A1147 delivers the reliability and precision required for efficient thermostat mounting and HVAC control system integration.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":49104781574400,"sku":"Q539A1147","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/s-l1600_ca2a9f08-3527-43f1-8157-8053a1dbe6d1.webp?v=1785532809","url":"https:\/\/alotechparts.com\/products\/honeywell-q539a1147-thermostat-subbase-cool-off-heat-single-transformer-taupe","provider":"Alo Tech Solutions","version":"1.0","type":"link"}