WhatsApp:+86 18150087953 WeChat: +86 18150087953 
Email：
Application Scenarios:
In a typical commercial HVAC scenario, the 031-00940-001 board operates 24/7 inside a YK centrifugal chiller at a hospital or data center. It continuously monitors evaporator and condenser temperatures, adjusts guide vane positions for load matching, and executes safety shutdowns if it detects conditions like low oil pressure or motor overload. If this board fails, the entire chiller becomes inoperative, potentially risking critical cooling loss. Replacement requires a programmed unit with firmware specific to the chiller model.
Parameter:
| Parameter Category | Specification Details |
|---|---|
| Manufacturer P/N | 031-00940-001 |
| Brand / OEM | YORK (Johnson Controls) |
| Product Type | Main Processor Board / CPU Board |
| Compatible Equipment | YORK Centrifugal Chillers (YT, YK), Screw Chillers (YS), and related large HVAC systems |
| Control System | MicroComputer Panel, OptiView Control Center |
| Primary Function | Central Processing Unit for chiller logic, sequencing, and protection |
| Key Interfaces | Backplane connector for I/O modules, display panel interface, communication ports |
| Memory | EPROM/Flash memory for firmware and configuration storage |
| Power Supply | Derived from chassis power supply (typically +5V, ±12V, +24V DC) |
| Operating Temp. | Industrial range (typically 0°C to +60°C) |
| Mounting | Installed inside the chiller’s control panel enclosure |
Technical Principles and Innovative Values:
- Innovation Point 1: Real-Time Refrigeration Control Logic: Unlike generic PLCs, the 031-00940-001 runs highly specialized firmware optimized for centrifugal and screw compressor dynamics. It processes complex algorithms for load balancing and anti-surge control in real-time, preventing the compressor from entering unstable operating regions that could cause mechanical damage. This domain-specific optimization is critical for the energy efficiency and longevity of large-tonnage chillers.
- Innovation Point 2: Integrated System Protection: The board incorporates hardware and software-based protection circuits that monitor critical parameters like bearing temperature, motor current, and differential pressure. Its logic can initiate a controlled shutdown within milliseconds of detecting a fault condition, protecting the high-cost compressor and heat exchangers from catastrophic failure. This proactive protection is a key value driver for insurance and risk management in large facilities.
- Innovation Point 3: Legacy System Longevity: For chillers that may be 15-20 years old, the 031-00940-001 board is often the sole source of control intelligence. Its availability as a spare part (including refurbished and programmed units) allows facilities to extend the life of critical infrastructure without undertaking a multi-million dollar chiller replacement project. This supports sustainability through asset life extension.
