{"product_id":"honeywell-st74a1020-defrost-control-circuit-board-343215","title":"Honeywell ST74A1020 Defrost Control Circuit Board 343214","description":"\u003cp\u003e\u003cstrong\u003e\u003cem\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\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e- Input Voltage: 24 VAC, 50\/60Hz\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e- Low voltage time\/temperature electronic defrost controller for heat pumps- Timed low voltage relay switching for defrost cycle control- Demand and timed defrost modes- System status and fault indication- Compatible with heat pump systems requiring universal defrost control- Microprocessor-based control for precision operation- Selectable operating parameters for customized defrost cycling- All outputs rated for extended cycle life operations- Environmental operating temperature range: -40°F to 150°F- Humidity limits: Less than 95% (non-condensing)- NEC Class 2 low voltage rated terminals- Direct replacement for OEM heat pump defrost control applications- Fault history and diagnostic capabilities for troubleshooting\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":43672847974509,"sku":"11963","price":160.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/2419\/1853\/files\/s-l800_d2cee34e-780b-4efe-931d-b19fab389066.jpg?v=1763340395","url":"https:\/\/willardshvacsupply.com\/products\/honeywell-st74a1020-defrost-control-circuit-board-343215","provider":"Willard's HVAC Supply","version":"1.0","type":"link"}