Amx ENV-VST-C User Manual download pdf (Page 12)

Installation and Wiring

ViewStat Color Communicating Thermostat

Wiring Terminals

ViewStat Color Communicating Thermostats are equipped with terminals RC, RH, C, Y, W, G, O, B, S1,

S2, L1, L2, L3, and L4. You can use terminals S1 and S2 to accommodate a remote temperature sensor

(see the Installing a Remote Sensor section on page 14 for more information). Terminals L1-L4 connect

to the AxLink cable. The remaining terminals are used to control various types of heating and cooling

systems detailed in the following sections. FIG. 1 displays the layout of the terminals on the thermostat’s

motherboard.

FIG. 1 Terminal Layout

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 41 42

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Amx ENV-VST-C User Manual Page 12