{"product_id":"resideo-zd24x20tz-u-zone-damper-24x20-in-2-position-24v","title":"Resideo zd24x20tz\/u Zone Damper 24x20 in 2-position 24V","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe RESIDEO zd24x20tz\/u is a parallel-blade zone damper designed for use in residential and light commercial HVAC zoning systems. Operating on 24 volts, this damper uses a 2-position, spring-return actuator that drives the blades fully open or fully closed based on a signal from the zone control panel. At 24 inches wide by 20 inches tall, it fits rectangular duct sections and provides reliable zone isolation to match conditioned air delivery with thermostat demand. HVAC technicians install this damper as part of a multi-zone forced-air system to balance comfort across independently controlled areas.\u003c\/p\u003e\n\u003cp\u003eThis damper is suited for residential forced-air zoning applications where the supply duct layout calls for a parallel-blade design. The spring-return function ensures the damper returns to its fail-safe position on power loss, which is an important consideration for system design and safety. Typical installations place this unit in a main trunk or branch duct serving a dedicated zone, with low-voltage wiring routed back to a compatible zoning control panel.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eParallel-blade configuration for efficient airflow control across the full duct opening\u003c\/li\u003e\n  \u003cli\u003e2-position operation: fully open or fully closed, controlled by zone panel signal\u003c\/li\u003e\n  \u003cli\u003eSpring-return actuator returns damper to fail-safe position on loss of power\u003c\/li\u003e\n  \u003cli\u003e24-volt low-voltage control compatible with standard zoning control panels\u003c\/li\u003e\n  \u003cli\u003e24 inches x 20 inches rectangular duct size fits common residential and light commercial trunk layouts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation zone damper for 24-inch by 20-inch rectangular duct openings in forced-air HVAC zoning systems using 24-volt, 2-position control wiring.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed HVAC technician familiar with forced-air zoning systems and low-voltage control wiring. Power down the air handler and de-energize the zone control panel before making any wiring connections. The damper must be mounted with attention to airflow direction as marked on the unit, and sheet metal screws are typically used to secure the damper frame to the duct. Follow local mechanical codes and the zoning control manufacturer's wiring diagram when connecting the 24-volt actuator leads.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDamper Width\u003c\/strong\u003e: 24 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDamper Height\u003c\/strong\u003e: 20 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBlade Configuration\u003c\/strong\u003e: Parallel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eControl Voltage\u003c\/strong\u003e: 24 volts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActuator Type\u003c\/strong\u003e: 2-Position Spring Return\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: RESIDEO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: zd24x20tz\/u\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RESIDEO","offers":[{"title":"Default Title","offer_id":51467651023154,"sku":"ZD24X20TZ\/U","price":349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/313945826.jpg?v=1783909402","url":"https:\/\/voomisupply.com\/products\/resideo-zd24x20tz-u-zone-damper-24x20-in-2-position-24v","provider":"Voomi Supply","version":"1.0","type":"link"}