Installing the VVT Bypass Controller
VVT Bypass Controller
Carrier Proprietary and Confidential
CARRIER CORPORATION ©2017
Installation and Start-up Guide
All rights reserved
10
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.
10's
1's
1
3
45
2
7
8
9
6
0
1
3
45
2
7
8
9
6
0
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
.