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The IO HVAC CONTROLS UT32-VK-04 is a bundled ventilation kit that pairs the UT32 thermostat with a 4-inch motorized damper in a single package. Together, these components control mechanical fresh-air ventilation in residential HVAC systems, opening and closing the damper on a timed or demand-based schedule to introduce outdoor air into the conditioned space. The kit ships as a matched set, simplifying procurement and ensuring the thermostat and damper are calibrated to work together. Licensed HVAC technicians and mechanical contractors are the primary installers. The package weighs 6.275 pounds and measures 9 inches wide by 9 inches tall by 13 inches deep.
This ventilation kit is suited for residential new construction and retrofit applications where mechanical ventilation is required to meet ASHRAE 62.2 or local code ventilation standards. It is designed for forced-air systems where a dedicated duct port allows a 4-inch damper to be installed in the fresh-air intake path. The UT32 thermostat handles both temperature control and ventilation timing, making it a practical single-device solution for homes that need integrated ventilation management without adding a separate ventilation controller.
Designed as an OEM-style ventilation kit for residential forced-air HVAC systems requiring a 4-inch fresh-air damper and integrated thermostat ventilation control.
Installation should be performed by a licensed HVAC technician familiar with low-voltage thermostat wiring and duct modification. Power down the air handler and thermostat circuit at the breaker before wiring or mounting either component. The damper must be installed in the fresh-air intake duct according to the manufacturer instructions and local mechanical codes. Verify all low-voltage wiring connections are secure and that the damper actuates correctly through the thermostat before restoring power and commissioning the system.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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