The YORK UNISAB II (Model 1606-001, Part Number 0319-1001) is a specialized Control Module engineered specifically for the management of industrial and marine refrigeration compressors. As a cornerstone of the UnisaB system, this module provides precise, automated regulation of screw and reciprocating compressors. It monitors suction and discharge pressures, oil temperatures, and motor loads to optimize cooling performance while ensuring the equipment operates within safe mechanical limits.
Technical Specifications
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Model Name: YORK UNISAB II Mission OL Control Module
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Part Number: 0319-1001 / 1606-001
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Dimensions: 260 mm (W) x 210 mm (D) x 110 mm (H)
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Weight: 2.2 kg
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Country of Origin: Denmark
Application Fields
The UNISAB II module is widely utilized in large-scale HVAC systems, marine air conditioning, cargo refrigeration (reefers), and industrial food processing cooling plants. It is the intelligence behind the compressor rack, handling complex tasks such as capacity control (slide valve positioning), safety interlocks, and energy-efficient load balancing across multiple cooling stages.
Instructions for Use
Installation involves mounting the module within the compressor control cabinet and connecting the I/O terminals to the sensor transducers and solenoid actuators. Once powered, the unit requires configuration via the interface terminal to match the specific compressor model and refrigerant type. Ensure the communication link to the main plant PLC is established for remote monitoring. During operation, the module will self-regulate based on the programmed setpoints. It is recommended to verify the oil pressure safety cut-out regularly and ensure the firmware revision matches the system’s requirements during maintenance.
Frequently Asked Questions
What is the purpose of the Mission OL labeling? The “Mission OL” designation typically refers to specific configurations for mission-critical or offshore-loaded applications where high availability and specialized safety parameters are required.
How do I troubleshoot an “Oil Pressure Fault” alarm? First, check the physical oil level in the compressor. If the level is sufficient, verify the calibration of the oil pressure transducer connected to the 0319-1001 module. If the sensor is reading correctly but the fault persists, inspect the internal pressure bypass solenoid.
Can I replace the control module while the compressor is running? No. Replacing the control module will cause an immediate loss of safety interlocks and compressor control. The system must be in a safe, powered-down state before any hardware replacement.
Does this module require software updates? Yes, periodic firmware updates may be necessary to ensure compatibility with updated refrigeration system protocols or to improve control algorithms. Updates must be performed using the official YORK service tool.
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