{"product_id":"oem-rheem-47-21517-24-defrost-control-board-hvac","title":"OEM RHEEM 47-21517-24 DEFROST CONTROL BOARD HVAC","description":"\u003cp\u003eThis product may contain shelf wear, have minor cosmetic imperfections, or have been tested. All our certified pre-owned products are backed by our return policy. We offer free shipping on all items. Please contact us for discounts or if you have any questions. We look forward to doing business with you!\u003c\/p\u003e\n\u003cp\u003eThe OEM RHEEM 47-21517-24 Defrost Control Board is a critical component designed to ensure the efficient operation of HVAC systems. Engineered to regulate the defrost cycle in heat pump units, this control board effectively prevents ice buildup on the outdoor coil, thereby maintaining optimal system performance and energy efficiency. Its reliable design supports consistent temperature regulation, which contributes to prolonged equipment lifespan and reduced maintenance costs. Manufactured to meet rigorous industry standards, the RHEEM 47-21517-24 Defrost Control Board integrates seamlessly with compatible HVAC units, providing precise control and enhanced system stability. This component is essential for maintaining uninterrupted heating performance during colder months, ensuring comfort and reliability in residential or commercial environments. Technical Specifications: - Model Number: 47-21517-24 - Function: Defrost control for heat pump systems - Compatible with: Rheem HVAC units and select models from other manufacturers - Voltage: 24 VAC control voltage - Operating Temperature Range: -40°F to 140°F (-40°C to 60°C) - Mounting: Standard board mount with screw terminals - Dimensions: Approximately 4.5 x 3.5 inches - Certifications: UL listed for safety compliance - Features: Automatic defrost cycle initiation, diagnostic LED indicators, and built-in timing controls\u003c\/p\u003e","brand":"Rheem","offers":[{"title":"Default Title","offer_id":43748104831085,"sku":"17246","price":115.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/2419\/1853\/files\/s-l800_79a8973b-bbb1-446e-b925-353b9242a802.jpg?v=1764977251","url":"https:\/\/willardshvacsupply.com\/products\/oem-rheem-47-21517-24-defrost-control-board-hvac","provider":"Willard's HVAC Supply","version":"1.0","type":"link"}