Ruskin model ZDR25 is a true round commercial zone control damper assembly that includes a modulating actuator, integral duct termperature sensor, actuator logic board and (ship loose) P+I wall thermostat. All components are factory commissioned to simplify field installation. The ZDR25 can be tied into an air handling unit when ordered as a component of the Z2000 zone comfort system. Additional ZDR25 dampers may be ordered without the logic board and controlled by the primary damper logic board. One Primary ZDR25 damper logic board can control up to three additional ZDR25 tracer dampers within the same zone. The ZDR25, with standard Z2000RT wall thermostat, is also a stand-alone device for single zone applications.
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