To Wire The Controller To The Bacnet Network - Carrier VVT Bypass II Installation And Startup Manual

To wire the controller to the BACnet network

WARNING Attaching any ARCNET or MS/TP network to the Act Net port damages BT485s, DIAG485s, or
terminating resistors on that network.
1
Pull the screw terminal connector from the controller's power terminals labeled Gnd and 24 Vac.
2
Check the communications wiring for shorts and grounds.
3
Connect the communications wiring to the controller's screw terminals labeled Net +, Net -, and Shield.
NOTE Use the same polarity throughout the network segment.
4
Set the communication type and baud rate.
For...
ARC156
MS/TP
NOTE Use the same baud rate for all controllers on the network segment.
5
If the VVT Bypass II is at either end of a network segment, connect a BT485 to the VVT Bypass II.
6
Insert the power screw terminal connector into the VVT Bypass II's power terminals.
7
Verify communication with the network by viewing a Module Status report in the i-Vu® interface.
VVT Bypass II Controller
Installation and Start-up Guide
Set BACnet ARC156 or MS/TP
jumper to...
ARC156
MS/TP
15
Set DIP switches 1 and 2 to...
N/A. Baud rate will be 156 kbps regardless of the
DIP switch settings.
The appropriate baud rate. See the MS/TP Baud
diagram on the controller.
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Installing the VVT Bypass II
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