Overview

When upgrading HVAC equipment, allows new functions (G, Y, W2, etc) to operate over the existing thermostat or condenser cable. The FAST-STAT product line does not require batteries or produce electrical interference.

Features

• Adds three wires and a common 'C' connection to a thermostat cable.
• For upgrading from single stage heating to 2-stage heating and air conditioning.
• Allows R, C, W1, W2, Y, and G to operate over a 2-wire thermostat cable.