Zone Ctrl II and
VAV Zone II Secondary Duct Installation and Start-up Guide
CARRIER CORPORATION ©2019
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What are the Zone Ctrl II and VAV Zone II Secondary Duct?
The Zone Ctrl II (OPN-B3-P-02) is for zone control, using custom control programs. It has a built-in flow sensor and
a detachable actuator, uses a patented flow control algorithm, and mounts directly on the terminal unit damper
shaft. Use EquipmentBuilder or Snap to create or modify your control program. There are many control programs
for single and for dual duct terminals that are already prepared that you can access in EquipmentBuilder.See
Create or edit equipment control programs
(page 29).
You can disconnect the actuator from the controller and mount them separately, connecting them with just the
actuator cable or using an additional extension cable, up to a maximum distance of 300 feet.
Overview and specifications