Green zone control dampers are powered normally open or normally closed 24 vac with an 88-pound torque motor; there is no wasted energy by springs to overcome or to be held open. According to the ...
The Comfort System™ Z-2000™ is a commercial zone control system allowing a single HVAC unit to have up to 20 individual zones. Zones are controlled by individual thermostats and a modulating zone ...
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