Thermostat Setup; Setting First And Second Stage Differentials - AMX ViewStat ENV-VST-C User Manual

Operating the Thermostat
9. Use the navigation buttons to highlight AxLink Setup, and press Mode/Select to access the AxLink
Communications screen (see FIG. 34).
FIG. 34 AxLink Communications screen
10. Use the navigation buttons to scroll through the numbers until you reach the first digit in the code,
and press Mode/Select to move to the next digit in the code.
11. Repeat the previous step until you have entered the full three-digit code.
12. Press Mode/Select while Enter is selected.
Changing the address of an AxLink device can result in some features on the thermostat to stop
working.

Thermostat Setup

Setting First and Second Stage Differentials

Differentials set the tightness of the temperature control to eliminate large temperature swings and
prevent the HVAC system from operating too often. Normally the second stage of heat is for auxiliary or
emergency heat.
Perform these steps to set the first and second stage differentials:
1. From the Main screen, press and hold Mode/Select for three seconds to access the Settings screen.
2. Use the navigation buttons to select Advanced Setup.
3. Press Mode/Select to access the Security Code screen.
4. Enter the security code, and select Enter to access the User Preferences screen. See the Entering the
Security Code section on page 28 for more information.
5. Use the navigation buttons to highlight More, and press Mode/Select to access the second User
Preferences screen.
6. On the second User Preferences screen, use the navigation buttons to highlight More, and press
Mode/Select to access the third User Preferences screen.
7. Use the navigation buttons to highlight Advanced Setup, and press Mode/Select to access the
Advanced Setup screen.
8. Use the navigation buttons to highlight More, and press Mode/Select to access the second
Advanced Setup screen.
40 ViewStat Color Communicating Thermostat User Guide