This mechanical line voltage thermostat is a direct solution for technicians requiring a robust

the Mueller Industries A17937 offers versatile installation

and its solid copper connections simplify the brazing process for field technicians

For contractors managing commercial HVAC installations

If you have 120V power

Johnson Controls Y66F12-0 Transformer 340155-7024 This mechanical line voltage thermostatThe Johnson Controls Y66F12 0 is a heavy duty 75VA class 2 transformer engineered for high demand commercial HVACR control circuits. Designed for multi tap versatility, this foot mount transformer accepts primary inputs of 277V or 480V AC and steps it down to a stable 24V secondary output. Built to withstand the rigors of mechanical rooms, it features robust plate mounting and color coded lead wires for fast, error free field wiring. This model is a