Introduction to Sentronic+
The Sentronic+ electronic oil pressure safety control by Emerson Climate Technologies offers advanced features for monitoring and protecting compressors. It utilizes a pressure sensor and an electronic module to accurately measure oil pump differential pressure, eliminating common leak points found in traditional mechanical controls. A key advantage is its precise electronic timing circuit for the two-minute time-out function, unaffected by ambient temperature or voltage fluctuations, ensuring consistent safety operation.
Key Features and Benefits
- Precise electronic timing for a reliable 2-minute time-out.
- Visual LED indicator for immediate oil pressure status and troubleshooting.
- Enhanced electronic noise suppression, eliminating the need for shielded cables.
- Designed to meet stringent Emerson approval requirements, including durability and calibration stability.
- Non-adjustable, manual reset control with specific cut-out and cut-in pressure settings (7-9 PSID and 12-14 PSID respectively).
- Module base accommodates both threaded and push-in electrical conduit connections.
Operational Overview
The Sentronic+ sensor is mounted directly to the compressor's oil pump. It measures the differential oil pressure. If the pressure drops below the safety threshold for a set duration (two minutes), the electronic module opens a control circuit, shutting down the compressor. The system also detects and reacts to fluctuating oil pressures and retains memory of oil pressure levels during power interruptions.
Installation and Troubleshooting
This document provides detailed instructions for installing the Sentronic+ sensor and module, including torque specifications and wiring guidance. It also outlines troubleshooting steps, LED interpretation for fault diagnosis, and procedures for checking the sensor and module functionality, including a bench test procedure. Information on interchangeability with older Sentronic models is also provided.
For detailed installation and troubleshooting, refer to the specific diagrams and procedures within the full document.
