First Stage Radiant Floor Heat, Second Stage Furnace With Single Stage Cooling; Installing A Remote Sensor - AMX ENV-VST-C Instruction Manual

Installation and Wiring

First Stage Radiant Floor Heat, Second Stage Furnace with Single Stage Cooling

First Stage Radiant Floor Heat, Second Stage Furnace with Single Stage Cooling wiring
FIG. 10
See the Changing the Type of HVAC System section on page 38 for information on indicating the thermostat is connected to a First
Stage Radiant Floor Heat, Second Stage Furnace with Single Stage Cooling system.

Installing a Remote Sensor

The ViewStat Color Communicating Thermostat has an onboard temperature sensor that can read and report the temperature at
the location of the unit (see FIG. 11). The onboard temperature sensor detects the current room temperature every 30 seconds.
Onboard
temperature
sensor
Onboard temperature sensor
FIG. 11
NOTE: Do not paint or tape over the onboard temperature sensor. Doing so can cause the sensor to work improperly.
NOTE: The onboard temperature sensor reports any detected temperature between 40° – 99° F (5° – 37° C). Temperatures outside
this range will not display on the thermostat screen. In this case, the temperature reading appears blank.
You can install an additional remote sensor to get a temperature reading from a location away from the thermostat. If you install a
remote sensor, you can use the temperature reading as the main reported temperature, or you can use the temperature reading
with the reading from the onboard sensor to report an average temperature for the zone.
The ViewStat Color Communicating Thermostat supports only one installed remote sensor. The sensor connects to the S1 or S2
terminal on the ViewStat. See the Communication and Equipment Terminal Wiring Def initions section on page 11 for more
information on the terminals on the thermostat.
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ENV-VST-C - Instruction Manual