{"product_id":"automag-coil-31-zone-valve-coil-head-3-4-inches-2-terminal","title":"Automag coil-31 Zone Valve Coil Head 3\/4 Inches 2-terminal","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe Automag coil-31 is a zone valve coil head designed for use with 3\/4 inch zone valves in hydronic heating and cooling systems. It is built for 2-terminal wiring configurations, making it a straightforward replacement for failed or worn coil heads in residential and light commercial HVAC applications. Zone valve coil heads like the coil-31 are the electromagnetic components that open and close zone valves in response to thermostat signals. When a thermostat calls for heat or cooling, the coil energizes, creating a magnetic field that drives the valve actuator to open. When the call ends, the coil de-energizes and the valve closes, directing flow only where it is needed. This type of component is commonly found in hot water baseboard heating systems, radiant floor heating loops, and chilled water fan coil circuits. A faulty coil head is one of the most common causes of a zone not heating or cooling properly. The coil-31 provides a direct replacement solution, allowing HVAC technicians and plumbers to restore zone control without replacing the entire valve body. The 2-terminal design simplifies field wiring. Technicians connect the two leads from the thermostat circuit directly to the terminals, reducing installation time and the risk of wiring errors. The 3\/4 inch sizing matches standard residential zone valve bodies widely used throughout the industry. Keeping replacement coil heads like the coil-31 on hand reduces callback time and helps service professionals complete jobs efficiently on the first visit. This coil head is a practical, reliable part for any HVAC or plumbing supply inventory serving the trades.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDirect replacement coil head for 3\/4 inch zone valves in hydronic heating and cooling systems\u003c\/li\u003e\n\u003cli\u003e2-terminal wiring configuration simplifies field installation and thermostat circuit connection\u003c\/li\u003e\n\u003cli\u003eRestores zone control without requiring full valve body replacement, saving time and material cost\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eProduct Highlights\u003c\/h4\u003e\u003cp\u003eThe Automag coil-31 is a 3\/4 inch zone valve coil head with a 2-terminal design, built for straightforward replacement in hydronic HVAC systems. It allows service technicians to restore zone valve function quickly without replacing the entire valve assembly.\u003c\/p\u003e\u003ch3\u003eProduct Information\u003c\/h3\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: AUTOMAG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: coil-31\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Size\u003c\/strong\u003e: 3\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Configuration\u003c\/strong\u003e: 2-Terminal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent Type\u003c\/strong\u003e: Zone Valve Coil Head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Hydronic Heating and Cooling Zone Control\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AUTOMAG","offers":[{"title":"Default Title","offer_id":51120900276530,"sku":"COIL-31","price":139.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/304881809.jpg?v=1777742783","url":"https:\/\/voomisupply.com\/products\/automag-coil-31-zone-valve-coil-head-3-4-inches-2-terminal","provider":"Voomi Supply","version":"1.0","type":"link"}