CARRIER 32LT900-301 SOLID-STATE HEAD PRESSURE CONTROLLER T269077

The Carrier Motormaster I is a solid-state head pressure controller designed for 208/230V, single-phase HVAC systems. It regulates outdoor fan speed based on condenser temperature to maintain constant head pressure, allowing low ambient cooling operation down to -20°F [-29°C]. This control is often used in packaged/rooftop units. Suitable for commercial rooftop units such as RAS072-121, RGS072-121, and RHS072-120.