AMX ENV-VST-C - Manual (Page 14)

Installation and Wiring
8 ViewStat Color Communicating Thermostat
Wiring Guidelines
The ViewStat Color Communicating Thermostat accepts configuration and weather information from a
NetLink Integrated master via an AxLink bus. Use 18 AWG wire to connect terminals L1-L4 on the
ViewStat to the AxLink device. See the Communication and Equipment Terminal Wiring
Definitions section on page 7 for more information on the terminals on the ViewStat.
Wiring for AxLink
Connect the AxLink wiring from the thermostat to the connector on the AxLink device as shown in
FIG. 2.
FIG. 2 AxLink wiring
You can connect the AxLink device to a NetLinx Master by following the instructions in the AxLink
device’s instruction manual.
The ViewStat Color Communicating Thermostat interfaces with a 24 VAC power supply from the
heating/cooling unit through its RC terminal. You should not connect the power wiring from the
AxLink device to the thermostat with the intent of using the AxLink device to provide power to the
thermostat.
The L1 terminal on the thermostat can accept the AxLink +12VDC wire and you can connect the
wire to the terminal if you want to assure there are no loose wires inside the thermostat, but you
should not power the thermostat by running a jumper to the RC pin.