AMX ENV-VST-C Operation/Reference Manual page 21

The sensor has a 1" head that protrudes from the wall and a connected wire that plugs into a port on the
thermostat. You can use a maximum of 300 ft (91.44 m) of wire for connecting the indoor/outdoor
remote sensor to the thermostat.
Follow these steps to install the indoor/outdoor remote sensor:
1. Drill a 1/4" hole into the surface where you want to install the sensor.
2. Fish the cable that connects to the sensor through the 1/4" hole in the wall until the edge of the
sensor, where the cord meets the sensor, is flush against the wall.
3. Apply caulk, drywall putty, insulation, or any other appropriate sealant to the hole in the wall
around the sensor to seal the hole.
4. Attach the connecting wires from the sensor to the S1 and S2 terminals on the thermostat (see
FIG. 12). It does not matter which wire you connect to either terminal.
Sensor wires
ViewStat Color Communicating Thermostat
Sensor head
FIG. 11
FIG. 12 Indoor/outdoor sensor wiring to S1 and S2 terminals
Indoor/Outdoor Remote Sensor
Installation and Wiring
Connecting wires
15