描述
Adds three wires and a common ‘C’ connection- Allows R, C, W1, W2, Y, and G to operate over a 2-wire thermostat cable
Yorktech Supply
Custom Sheet Metal & HVAC Supplies
Adds three wires and a common ‘C’ connection- Allows R, C, W1, W2, Y, and G to operate over a 2-wire thermostat cable
