Remove the VMA14xx controller and install the VMA 1832 controller. Refer to the VMA1832 Variable Air Volume Controllers Installation Instructions (Part No. 24-10143-373) for detailed installation instructions and sensor replacement and reuse scenarios. Refer to the Controller Tool Help (LIT-12011147) for information on commissioning the VMA 1832 controller.
Set the VMA
1832 controller's N2
address DIP switch block to the same N2 address as the VMA14xx controller you are
replacing. Refer to the
VMA1832 Variable Air Volume
Controllers Installation Instructions (LIT-24-10143-373)
for instructions to set the
device address.
Important: When you receive a VMA
1832 from the factory or upgrade the
firmware or main code, the controller defaults to using the MS/TP communications
protocol. The Load Summary screen of CCT 10.1 shows the connection as Wired Field
Bus, indicating that the MS/TP protocol is in use. If you have an N2 application,
the Load Summary screen indicates that you need to switch the communications
protocol to N2.