While this is a 3-pole contactor

which is critical for the continuous operation of high-performance York HVAC systems

the V11HAA-115 manages low-pressure air lines effectively

including those utilizing hot water

As a critical OEM unit heater part

Schneider Electric (Barber Colman) 2232-150 Humidity Transmitter THPU32HP7Y While this is a 3-poleThe Schneider Electric (Barber Colman) 2232 150 is a rugged, one pipe force balance duct humidity transmitter engineered for precise atmospheric monitoring in pneumatic HVAC systems. Designed for direct duct mounting, this instrument senses a full 0 to 100% relative humidity range and converts it into a linear 3 15 psig output signal. This signal provides critical data to receiver controllers and remote gauges, ensuring stable modulation of