Daikin-McQuay 2229319 Sensor

The Daikin-McQuay 2229319 Low Pressure Sensor is a critical refrigeration cycle component engineered for precise monitoring of suction line pressures in commercial HVAC systems. This HVAC pressure transducer provides essential feedback to the main controller, preventing compressor damage caused by low refrigerant charge or restricted flow. Designed for high-reliability in McQuay and Daikin chillers and air handling units, this sensor converts physical pressure into a linear electrical signal, ensuring the system maintains optimal superheat and prevents evaporator coil freezing. When diagnosing refrigeration pressure sensor failure, replacing an out-of-calibration unit with this genuine OEM part ensures accurate low pressure cutout protection and long-term system stability. The robust construction and moisture-resistant electrical connections make it suitable for demanding rooftop or mechanical room environments. As a drop-in replacement, it minimizes downtime and restores the factory-specified operating parameters required for efficient condensing unit pressure control.

• Precise Pressure Transduction: Delivers accurate low-side pressure readings to ensure the Daikin chiller controller maintains safe operating limits.
• Durable Construction: Built to withstand vibration and thermal cycling common in commercial McQuay HVAC systems.
• System Protection: Essential for preventing compressor short-cycling and potential motor burnout due to low suction pressure.
• Direct OEM Compatibility: Ensures seamless integration with existing wiring harnesses and controller logic without the need for field calibration.

What are the symptoms of a faulty 2229319 sensor?
Technicians typically observe erroneous low pressure alarms, erratic compressor behavior, or the controller being "locked out" despite adequate refrigerant levels. Resistance and voltage output checks against pressure charts are recommended for diagnosis.

Is this sensor compatible with all refrigerant types?
This low pressure transducer is designed for compatibility with common HCFC and HFC refrigerants used in Daikin-McQuay commercial systems, though checking the specific unit nameplate for chemical compatibility is advised.

Does this unit require a specific wiring harness?
The 2229319 uses a standard industrial connector typical of most Daikin pressure sensors, allowing for a direct plug-and-play installation on compatible systems.

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.