Description
Application Scenarios
In a hospital data center chilled water plant, a 500-ton York YK centrifugal chiller operates continuously to maintain critical cooling for server rooms. The 031-00940-001 processor board sits at the heart of the OptiView control panel, receiving real-time data from evaporator and condenser temperature sensors, motor current transducers, and oil pressure switches. When building load drops during nighttime hours, the 031-00940-001 modulates guide vane position to match capacity precisely, avoiding the unstable operating region that causes compressor surge. If a condenser water pump fails or refrigerant pressure drops below safe limits, the board initiates a controlled shutdown within milliseconds, protecting the compressor from catastrophic damage. For facilities managers, the 031-00940-001 is not merely a spare part—it is the single component whose failure renders a multi-million dollar chiller completely inoperative, making its availability a critical risk management priority .
Parameter
| Parameter | Value/Description |
|---|---|
| Product Model | 031-00940-001 |
| Manufacturer | YORK International (Johnson Controls) |
| Product Category | Main Processor Board / CPU Board |
| Compatible Systems | MicroComputer Control Panel, OptiView Control Center |
| Compatible Chiller Models | YORK YT/YK Centrifugal, YS Screw Chillers |
| Core Processor | Industrial-grade microprocessor (e.g., Motorola 68K series or PowerPC architecture) |
| Onboard Memory | EPROM/Flash memory for firmware and configuration parameters |
| Primary Interface | Dedicated backplane bus (connects to I/O boards, communication boards, display panel) |
| Power Supply | Derived from chassis power supply (+5V, ±12V, +24V DC typical) |
| Operating Temperature | 0°C to 60°C (industrial control cabinet environment) |
| Mounting Method | Edge connector or socket installation on control panel backplane |
| Diagnostic Features | Onboard LED status indicators, system fault log recording |
