{"product_id":"prince-castle-main-portion-control-circuit-board-547-221-547-222-rev-b","title":"Prince Castle Main Portion Control Circuit Board 547-221 547-222 Rev B","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· Compatible with Prince Castle Main Portion Control Systems, including models 547-221, 547-222, and their revisions such as Rev B and 547-221S\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e· Controls heating elements in holding cabinet equipment to maintain precise temperature settings\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e· Interfaces with equipment user controls, including timers, temperature displays, and portion control input · Electrical specifications include line voltage operation with low-voltage logic circuits supporting triac control of heating elements\u003c\/p\u003e\u003cp\u003e· Includes multiple triac outputs for independent heater control channels ensuring even and reliable heating performance\u003c\/p\u003e\u003cp\u003e· Designed for easy plug-in replacement with standard Prince Castle connectors on the bus board system\u003c\/p\u003e\u003cp\u003e· OEM-equivalent high-quality construction matching original part specifications for durability and reliability\u003c\/p\u003e\u003cp\u003e· Ship weight approximately 1 lb; compact form factor suitable for installation within Prince Castle portion control and holding cabinets\u003c\/p\u003e","brand":"Prince Castle","offers":[{"title":"Default Title","offer_id":43672928747629,"sku":"12839","price":292.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/2419\/1853\/files\/s-l800_fee0fac7-2f11-4106-8f20-00c997b37fd5.jpg?v=1763343436","url":"https:\/\/willardshvacsupply.com\/products\/prince-castle-main-portion-control-circuit-board-547-221-547-222-rev-b","provider":"Willard's HVAC Supply","version":"1.0","type":"link"}