Daikin-McQuay 047356103 Pressure Switch

The Daikin-McQuay 047356103 Pressure Switch is a high-precision HVAC low-pressure cutoff designed for critical system monitoring in McQuay and Daikin commercial units. This 60/35# pressure switch operates with a 60 PSI cut-in and a 35 PSI cut-out, providing essential refrigerant loss protection for the compressor. Engineered for durability, this 047356103 pressure control replaces several legacy models, including the 473561B-03 and Invensys MG20-1222, ensuring a direct drop-in fit for maintenance and repair cycles. As a specialized low pressure switch for HVACR, it functions as a safety limit by breaking the electrical circuit when suction pressure drops below the 35 PSI threshold, preventing vacuum operation and potential motor burnout. Whether you are performing a seasonal tune-up or an emergency repair, this genuine Daikin-McQuay OEM part maintains the factory-specified calibration required for optimal system performance and long-term equipment reliability.

• Precise Calibration: Factory-set 60 PSI reset and 35 PSI cutout points ensure accurate system cycling and protection.
• OEM Compatibility: Direct replacement for McQuay 047356103 and PTAC Solutions 33PS02-0069, eliminating guesswork during installation.
• Rugged Construction: Built to withstand the high-vibration environment of commercial condensers and air handlers.
• Enhanced Safety: Acts as a primary refrigerant pressure safety switch to prevent compressor damage during low-charge conditions.

What are the electrical ratings for this switch?
This switch is typically rated for standard pilot duty applications up to 200V-Max, commonly found in commercial HVAC control circuits.

Can this be used as a high-pressure cutout?
No, the 047356103 is specifically calibrated as a low-pressure switch with a 35 PSI trip point and is not suitable for high-side monitoring.

Is this switch field-adjustable?
This is a fixed-setting mechanical switch calibrated at the factory to 60/35 PSI to ensure consistent safety limits without the risk of field tampering.

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.