Local access to the Zone Ctrl II
Zone Ctrl II and
VAV Zone II Secondary Duct Installation and Start-up Guide CARRIER CORPORATION ©2019
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You can use the following items as a local user interface to an Open controller. These items let you access the
controller information, read sensor values, and test the controller.
1
application
Local Access port Temporary user interface for start-up
2
touchscreen
device
Rnet port Temporary or permanent user interface
for start-up
1
Requires a USB Link (Part #USB-L)
2
See the Equipment Touch Installation and Setup Guide for detailed instructions.
If multiple controllers share power but polarity was not maintained when they were wired, the
difference between the controller's ground and the computer's AC power ground could damage the USB Link and
the controller. If you are not sure of the wiring polarity, use a USB isolator between the computer and the USB
Link. Purchase a USB isolator online from a third-party manufacturer.
These are accessory items that do not come with the controller.
Local access to the Zone Ctrl II
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