York 031-02506-001 Control Circuit Board

1. Advantage：

This YORK main control board (P/N 031-02506-001) is the populated green PCB that serves as the communication and logic hub for YORK chiller systems. It features on-board MODBUS address switches (with RTU/ASCII selection) and a serial terminal block (TX/RX/RTS0/CTS0/GND) for building automation connection. The board carries microcontrollers, capacitors, signal conditioning circuits and multiple I/O connectors, and is the board that processes sensor inputs and drives outputs across the chiller.

2.Supply & Packaging:

Brand: YORK / Johnson Controls

Part No.: 031-02506-001

Type: Main Control Circuit Board (populated PCB)

Communication: MODBUS RTU/ASCII, address switches on board

Key Sub-labels: 031-02547-001 (CVSD 07.01.08), 031-01620-000

PCB Marking: TF105VO E324822

Color: Green solder mask

Packing: ESD-safe packaging

Condition: 100% new 

Gross Weight: see listing

3.Our Advantage

Control boards with MODBUS capability are the interface between the chiller and the building management system-wrong board revision means the BMS cannot read or write the chiller. We confirm the board's firmware revision (CVSD version) against your unit before shipping. When a chiller shows communication faults or erratic I/O, send us the fault code and a photo of your existing board, and we will confirm whether this board is the correct replacement.