{"product_id":"white-rodgers-50a50-571-integrated-furnace-control-board-for-compatible-trane-and-american-standard-gas-furnaces","title":"White-Rodgers 50A50-571 Integrated Furnace Control Board for Compatible Trane and American Standard Gas Furnaces","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 White-Rodgers 50A50-571 is an integrated furnace control board designed to manage ignition, flame sensing, blower operation, inducer control, and safety monitoring in compatible gas-fired furnaces. Manufactured by White-Rodgers, an Emerson brand, the 50A50-571 provides microprocessor-based control for reliable furnace startup, efficient heating operation, and continuous system diagnostics. It is commonly used as an OEM replacement in compatible Trane and American Standard residential furnace 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\u003eWhite-Rodgers\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\u003e50A50-571\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFurnace Control Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWhite-Rodgers (Emerson)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIntegrated Furnace Control Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIgnition Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle-Stage Hot Surface Ignition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 VAC, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Input Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.35 A + MV @ 25 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGas Valve Relay Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.5 A @ 25 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIgnitor Relay Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6.0 A @ 120 VAC (Resistive)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInducer Relay Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.5 FLA \/ 3.0 LRA @ 120 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCirculator Blower Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14.5 FLA \/ 25.0 LRA @ 120 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTrial for Ignition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 Seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRetries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 Retries \/ 3 Ignition Attempts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°F to 175°F (-40°C to 80°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Equipment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTrane and American Standard Gas Furnaces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCross Reference\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eD330927P01, CNT2181\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.0 lb (0.45 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 \u003cmeta charset=\"utf-8\"\u003e\n\u003cspan\u003e50A50-571\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cmeta charset=\"utf-8\"\u003eThe 50A50-571 is a single-stage hot surface ignition integrated furnace control developed by White-Rodgers for use in gas-fired forced-air heating equipment. The control board coordinates the operation of the ignitor, gas valve, draft inducer, circulating blower, pressure switch, and flame sensor while continuously monitoring furnace safety circuits through an onboard microprocessor. Operating from a 25 VAC control circuit, it supports multiple approved fuel types, incorporates LED diagnostic indicators, and provides configurable blower delay settings for optimized heating performance. The board is used in numerous OEM Trane and American Standard furnace models and is identified by replacement numbers including D330927P01 and CNT2181.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eMicroprocessor-Based Control: Continuously manages ignition, blower, inducer, and safety functions.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eHot Surface Ignition Control: Designed for single-stage gas furnace ignition systems.\u003c\/li\u003e\n\u003cli\u003eLED Diagnostics: Built-in flash codes simplify troubleshooting and maintenance.\u003c\/li\u003e\n\u003cli\u003eIntegrated Safety Monitoring: Continuously supervises flame sensing, pressure switch, and thermal protection circuits.\u003c\/li\u003e\n\u003cli\u003eConfigurable Blower Delays: Supports selectable heating and cooling blower off-delay settings.\u003c\/li\u003e\n\u003cli\u003eMulti-Gas Compatibility: Approved for natural gas, manufactured gas, mixed gas, liquefied petroleum gas, and LP gas.\u003c\/li\u003e\n\u003cli\u003eOEM Replacement Design: Compatible with Trane and American Standard furnace applications using the 50A50-571 platform.\u003c\/li\u003e\n\u003cli\u003eReliable Relay Outputs: Controls the gas valve, ignitor, inducer motor, and circulating blower through dedicated relay circuits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 50A50-571 delivers the reliability and precision required for ignition control, safety supervision, and furnace operation in residential gas heating systems.\u003c\/p\u003e","brand":"Emerson","offers":[{"title":"Default Title","offer_id":52154819510570,"sku":"50A50-571","price":449.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/CNT07941_1024x1024_2x_3e540532-d7e8-4b42-ab32-185d626dd5bd.jpg?v=1785506178","url":"https:\/\/iqelectro.com\/products\/white-rodgers-50a50-571-integrated-furnace-control-board-for-compatible-trane-and-american-standard-gas-furnaces","provider":"IQElectro","version":"1.0","type":"link"}