Carrier HK50AA039 Board

The Carrier HK50AA039 Premier Leak Board serves as a critical diagnostic and protection component within Carrier rooftop units and high-capacity HVAC systems. This circuit board functions as a leak detection board, specifically engineered to interface with HVAC pressure sensors and monitor the refrigeration circuit for potential refrigerant loss or sensor failure. By providing proactive monitoring, the HK50AA039 control board helps prevent compressor damage associated with low-pressure conditions, ensuring long-term operational reliability for industrial and commercial air conditioning equipment.

Engineered for seamless integration with OEM controls, this replacement HVAC circuit board facilitates rapid troubleshooting through its localized diagnostic capability. Technicians can rely on the precise voltage signals and relay logic to identify system faults before they escalate into costly failures. Its robust construction is designed to withstand the electrical demands of heavy-duty units, making it an essential service part for maintaining Carrier RTU performance and refrigerant circuit integrity in demanding environments.

• Enhanced System Protection: Monitors refrigeration loops to prevent operation under unsafe low-pressure conditions.
• OEM Compatibility: Exact replacement for Carrier HK50AA039, ensuring plug-and-play installation without field modifications.
• Reliable Diagnostic Output: Provides clear signaling to the main controller for faster fault identification and reduced downtime.
• Durable Construction: Built to handle the thermal and electrical stresses typical of rooftop HVAC applications.

Common Questions

What systems are compatible with the HK50AA039 Leak Board?
This board is predominantly utilized in Carrier commercial rooftop units and series that require dedicated refrigerant leak monitoring and low-pressure logic integration.

Can this board be bypassed for testing purposes?
While technicians may bypass the board temporarily for diagnostic circuit isolation, it must remain fully operational during standard system use to maintain critical safety protections for the compressor.

Does this board require specific calibration?
No, the HK50AA039 is factory-scaled to recognize specific voltage and resistance inputs from compatible OEM pressure transducers and sensors.

This item is not eligible for free shipping.

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.