Daikin-McQuay 336166931 Pressure Transducer

The Daikin-McQuay 336166931 Pressure Transducer is a critical sensing component engineered for precise refrigerant pressure monitoring within industrial HVAC systems. Operating with a 0-132 PSI range, this transducer converts mechanical pressure into a stable electrical signal for the MicroTech controller, ensuring accurate head pressure control and compressor protection. This part serves as the direct OEM replacement for legacy part numbers 333992031, 071568511, 071568521, and 071568501. Designed for durability in high-vibration environments, the stainless steel sensing element provides long-term stability and resistance to pressure spikes. Proper transducer calibration is streamlined through its standardized output, allowing technicians to maintain tight tolerances in chiller maintenance and HVAC diagnostics. Utilizing genuine Daikin-McQuay spare parts ensures seamless integration with existing MicroTech II or III control boards, preventing communication errors and maintaining system efficiency without the risks associated with generic aftermarket sensors.

• Drop-in Compatibility: Replaces multiple legacy part numbers including 333992031 and 071568501 for simplified inventory.
• High Precision Sensing: Optimized for 0-132# pressure ranges to provide accurate data for subcooling and superheat calculations.
• Rugged Construction: Built to withstand the harsh operating conditions found in commercial screw and centrifugal chillers.
• Signal Reliability: Provides consistent voltage or current feedback to prevent nuisance high-pressure trips or system shutdowns.

Is this transducer compatible with older McQuay chillers?
Yes, this unit is the engineered replacement for several discontinued McQuay sensors and is fully compatible with MicroTech control systems frequently found in older air-cooled and water-cooled chillers.

What are the symptoms of a failing pressure transducer?
Common indicators include erratic pressure readings on the controller interface, frequent low-pressure alarms during stable operation, or the sensor being stuck at a specific voltage regardless of actual system pressure changes.

Does this part require special tools for installation?
Standard HVAC service tools are required for mechanical installation; however, always ensure the system is properly recovered or the schrader port is isolated before removal to prevent refrigerant loss.

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.