The VAV-4040 variable air volume (VAV)/variable volume and temperature (VVT) controller features an integrated damper actuator. It can be used on single-duct or dual-duct VAV boxes, boxes that have a ...
In more recent versions, added requirements for the use of DDC controls along with the use of control sequences such as economizers (air and waterside, and most recently, with “self-diagnostic” ...
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