Emerson Alco 065366 Control

The Emerson Alco 065366 (Model OMB-MO1) is an industrial-grade compressor crankcase oil level protection control designed specifically for demanding refrigeration environments. Operating on a 24Vac power supply, this self-contained unit utilizes a reverse Hall-effect sensor to provide precision oil level measurement, effectively eliminating the nuisance trips often associated with optical sensors in foaming conditions. This control is a primary choice for Copeland Scroll compressor oil management, particularly across ZF, ZB, ZR, and ZS models, as well as various semi-hermetic configurations.

Built for reliability, the OMB-MO1 features an integral solenoid to manage oil supply via a 1/4" male flare oil supply fitting with a 350 PSI MOPD. The logic includes a 5-10 second time delay for level signaling and a 120-second alarm delay, connected to a robust SPDT alarm switch for system shutdown or remote monitoring. Technical teams favor this unit for its debris retention magnet and foam-resistant design, ensuring accurate refrigeration oil level control even in systems with high contaminant potential. Its 870 PSI maximum working pressure makes it compatible with a wide range of HFC, CFC, and HCFC applications.

• Precision Monitoring: Uses Hall-effect sensing to ignore oil foam, ensuring the compressor crankcase oil level stays within spec without false alarms.
• Integrated Solenoid Control: Simplifies installation by combining the level sensor and oil supply fitting into a single, compact module.
• Advanced Protection: Features a 5-time lockout logic to protect hardware from repeated low-oil conditions before critical failure occurs.
• Direct Compatibility: Engineered as a standard OEM replacement oil control for Copeland Scroll and diverse semi-hermetic compressors.
• Durable Construction: Includes an integral sight glass with a fluorescent floating ball for immediate visual confirmation of oil status.

• What is the primary application for the OMB-MO1? This unit is optimized for compressor oil management in commercial refrigeration, primarily serving as the approved control for Copeland Scroll compressors.
• How does the alarm circuit function? The integrated SPDT alarm switch triggers after a 120-second delay, allowing for compressor shutdown to prevent mechanical damage.
• Is this unit resistant to system debris? Yes, the Emerson 065366 includes a built-in magnet to capture metallic contaminants, protecting the oil level protection control from internal interference.

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.