Carrier VVT Zone, Installation And Startup Manual

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Installing the VVT Zone II
VVT Zone II Controller CARRIER CORPORATION ©2019
Installation and Start-up Guide All rights reserved
12
Addressing the VVT Zone II
You must give the VVT Zone II an address that is unique on the network. You can address the VVT Zone II before or
after you wire it for power.
1
If the VVT Zone II 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 Zone II.
Wiring for communications
The VVT Zone II 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 .
Wiring specifications for BACnet MS/TP and ARC156
Cable: 22 AWG or 24 AWG, low-capacitance, twisted, stranded, shielded copper wire
Maximum length: 2000 feet (610 meters)
WARNING Do not apply line voltage (mains voltage) to the controller's ports and terminals.