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Installing the VVT Bypass Controller
4
Apply power to the power supply.
5
Measure the voltage at the VVT Bypass Controller's power input terminals to verify that the voltage is within
the operating range of 21.6–26.4 Vac.
6
Connect a 4-inch (10.2 cm) wire from Gnd to earth ground.
7
Insert the screw terminal connector into the VVT Bypass Controller's power terminals.
8
Verify that the Power LED is on and the Run LED is blinking.
Addressing the VVT Bypass Controller
You must give the VVT Bypass Controller an address that is unique on the network. You can address the VVT
Bypass Controller before or after you wire it for power.
1
If the VVT Bypass Controller has been wired for power, pull the screw terminal connector from the controller's
power terminals labeled Gnd and 24 Vac. The controller reads the address each time you apply power to it.
2
Using the rotary switches, set the controller's address. Set the Tens (10's) switch to the tens digit of the
address, and set the Ones (1's) switch to the ones digit.
EXAMPLE If the controller's address is 25, point the arrow on the Tens (10's) switch to 2 and the arrow on
the Ones (1's) switch to 5.
0
10's
0
1's
CAUTION The factory default setting is 00 and must be changed to successfully install your VVT Bypass
Controller.
Wiring for communications
The VVT Bypass Controller communicates using BACnet on the following types of network segments:
•
MS/TP communicating at 9600 bps, 19.2 kbps, 38.4 kbps, or 76.8 kbps
•
ARC156 communicating at 156 kbps
NOTE For more networking details, see the Open Controller Network Wiring Installation Guide.
VVT Bypass Controller
Installation and Start-up Guide
Carrier Proprietary and Confidential
10
CARRIER CORPORATION ©2017
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