Emerson Alco 097849 Pressure Control

The Emerson Alco 097849 is a commercial-grade PSC-A1S Mini Pressure Control designed for high-reliability low pressure limit and compressor protection in refrigeration and air conditioning systems. This compact SPDT pressure switch features an auto reset function and is factory-set for a range of 15" wc to 90 PSI, ensuring precise, repeatable performance in demanding environments. Engineered with a 1/4" flare connection including a valve depressor, it facilitates direct mounting to the system's access port without the need for additional capillary tubes, reducing potential leak points.

The mini low pressure control housing measures just 2" x 1-1/2" x 2-3/4", making it ideal for tight mechanical footprints. It includes a DIN plug with 36" cable for secure electrical termination and simplified field replacement. Compatible with standard HFC, HCFC, and CFC refrigerants, this HVAC low pressure switch is a versatile solution for condenser fan cycling or as a secondary safety limit on electronically controlled systems.

• Direct Mount Connectivity: The 1/4" flare with valve depressor allows for fast installation directly on the compressor head or suction line.
• Versatile SPDT Logic: Single Pole Double Throw action supports both primary control and auxiliary alarm circuits for comprehensive system monitoring.
• Rugged Design: Built for commercial use with precise setpoint repeatability and vibration resistance for long-term field stability.
• Global Standards Compliance: Carries UL, CUL, VDE, and TÜV approvals, ensuring it meets strict safety and performance specifications.

Is this switch field-adjustable?
While the PSC-A1S comes factory-preset for 15"wc-90 PSI, the PSC series is designed for repeatable performance based on those specific event parameters to protect against low-charge conditions.

Can I use this for fan cycling?
Yes, the SPDT contact configuration and pressure range make it suitable for condenser fan cycling applications in addition to low-pressure safety limits.

What is the benefit of the DIN plug connection?
The DIN plug with the included 36" cable provides a secure, moisture-resistant connection that simplifies service and prevents wiring errors during installation.

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.