While the controller requires a 24V AC power supply

The brass housing and 18-inch wire leads facilitate a straightforward direct-acting installation

ensuring they remain secure during high-output cycles

meaning the valve opens as the temperature at the sensing bulb increases

Carrier EC36SZ063 Check Valve 320074-702 While the controller requires aThe Carrier EC36SZ063 Check Valve is a critical directional control component designed for integration within high pressure refrigerant lines of Carrier residential and commercial HVAC units. Engineered to operate automatically based on system pressure differentials, this OEM check valve ensures that refrigerant flows strictly in one direction, preventing hazardous backflow that can lead to compressor slugging or thermal imbalances. With heavy duty