Carrier HK680016 Pressure Switch

The Carrier HK680016 High Pressure Switch is a critical safety component designed for precise refrigerant pressure monitoring in residential and commercial HVAC units. As the direct replacement for HK02AA359, this electronic switch prevents compressor damage by interrupting the control circuit when discharge pressures exceed safe operating limits. Maintaining a cut-out range of 90 to 450 PSI, it ensures your system remains within the manufacturer's specified envelope, preventing catastrophic failure from over-pressurization. This OEM Carrier pressure control features a 1/2-inch connection and is engineered to interlock with a 24V transformer, providing reliable voltage signaling to the high-pressure solenoid or contactor. For technicians servicing Carrier Infinity systems or high-pressure evaporator units, using this genuine HVAC high pressure cutout switch ensures exact calibration and terminal compatibility without the need for field modifications. Rely on this robust switch to sustain system integrity and optimize cycle performance in demanding environments.

• Precise Pressure Regulation: Features a factory-calibrated 90-450 PSI operating range to safeguard the compressor from high-head pressure.
• Universal Replacement: Serves as the official successor to HK02AA359 and integrates with various Carrier, Bryant, and Payne models.
• Efficient Diagnostic Feedback: Seamlessly interfaces with 24V control circuits to provide immediate system shutdown upon detecting fault conditions.
• OEM Construction: Built to rigorous Carrier parts standards, ensuring durable electrical contacts and leak-free fitting connections.

Is the HK680016 compatible with older HK02AA359 switches?
Yes, the HK680016 is the designated replacement high pressure switch for the discontinued HK02AA359, featuring the same technical specs and form factor.

What is the cut-off pressure for this electronic switch?
This Carrier HK680016 typically monitors a range between 90 and 450 PSI, effectively acting as a high-limit safety for the gas line and refrigerant circuit.

Does this switch support 24V HVAC systems?
Yes, it is designed to interlock with a 24V transformer source to send electronic signals to the system controller.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.