Installing a VMA 1832 Controller - Metasys - LIT-12011829 - Field Device - VMA18 VAV Modular Assembly

N2 VMA Application Note

Brand
Metasys
Product name
VMA18 VAV Modular Assembly
Document type
Application Note
Document number
LIT-12011829
Revision date
2018-11-01
Language
English

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.