Copeland 998-0105-01 Protection Module

The Copeland 998-0105-01 is a Sentronic 3 oil pressure control module engineered for high-accuracy compressor protection in commercial refrigeration systems. This unit is the direct 998-0105-01 replacement for 085-0172-04 and 085-0161-01 legacy models, featuring an updated manual reset interface with enhanced LED diagnostics. As a critical electronic oil pressure safety control, it monitors the differential between the oil pump discharge and the crankcase, ensuring a 120-second time delay before tripping to prevent nuisance shutdowns during startup while providing terminal venting protection and low oil pressure protection. Designed for 240 VAC single-phase applications, it integrates a latching relay that retains the trip status even after power loss. For technicians in the field, this Sentronic 3 module allows for a "jog" function to test the pilot circuit and provides clear LED status indicators (Green for sufficient pressure, Red for inadequate pressure) to streamline HVAC troubleshooting and minimize system downtime.

• Direct Compatibility: Seamlessly replaces 085-0172-04, 085-0161-01, and 085-0172-01 modules without requiring extensive rewiring.
• Advanced Diagnostics: Features a high-visibility LED display for real-time monitoring of compressor oil pressure status.
• Latching Relay: Includes a manual reset sliding switch that keeps the unit in a tripped state until technician intervention, preventing automatic compressor restarts under low-oil conditions.
• Versatile Wiring: Supports standard 240V configurations with a 6-terminal strip (120/220, 2, M, L, A, GND) for flexible field installation.
• Precision Timing: Utilizes a specialized electronic circuit to provide a 120-second (±15s) time-out period for optimal refrigeration system safety.

Is the 998-0105-01 compatible with older Sentronic sensors?
Yes, this Sentronic 3 module is designed to be backwards compatible with existing Copeland oil pressure sensors, though upgrading to the newer 998-0162-00 sensor is often recommended for complete system modernization.

What do the LED light codes indicate on this protector?
A Solid Green LED indicates 12+ PSID of differential pressure. A Solid Red LED warns that pressure has dropped below the 7-9 PSID threshold and the 120-second timer has started. No Light typically indicates the control circuit is not energized or a trip has already occurred.

Can I use this module for a 120V application?
While often used in 240V circuits, the Sentronic design typically features a small internal control transformer allowing for either 120V or 208/240V input, provided you follow the specific wiring diagram for your compressor model.

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.