The 4075-IF, round VAV damper, is part of the Young Regulator “Simple Zone” product line. These are high-quality air control devices specifically configured to make stande-alone zoning easy.
The 4075-IF features a Belimo brushless motor and the YR – Interface board. The Interface Board is the hub for all of your wiring connections. It also has an on-board temperature sensor so it can manage modulation and auto-chageover.
Pair this with the T-720 Thermostat for an easy, super-reliable single point zoning solution.