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Dampers, Dampers By Brand, Suncourt Dampers
The ZoneMaster Zone Control Damper saves money on heating and cooling by controlling temperatures in individual rooms. Fits 10" duct. Power off = "closed." The ZoneMaster has a safe, low voltage motor The ZoneMaster is a tremendous energy saver Free-wheeling coupling between motor and damper shaft for long life Housing length is 8" The ZoneMaster comes with a 3 year limited warranty Transformer is not included with damper The following will be required to complete the installation: A standard low voltage Heat-Cool wall thermostat, designed for gas furnaces. 24 Volt transformer. Electrical wire, 2-conductor, 20 Gauge (CL-2 or Bell Wire) to connect the Transformer to the Damper. If the total length of wire exceeds 80 feet (25 m), use 18 Gauge wire. A cover plate with knockout for the electrical box that the Transformer will be mounted on. If you are mounting the Damper between floor joists in flexible duct, you will need two duct supports. Duct tape.