YORK 331-02507-602 VSD Logic Board

1. Advantage：

On a YCIV screw chiller, the VSD logic board is the card that turns the controller's speed demand into the firing signals the drive can act on. When it fails, the drive does not stop politely: the compressor trips to minimum speed, the chiller reports a VSD communication fault, and the plant's cooling demand goes unmet while a service team argues over whether the fault is in the controller, the cable or the drive itself. Re-seating connectors and flashing a newer firmware version rarely help once a board has absorbed a drive-side transient, and the only lasting fix is a known-good replacement card.

331-02507-602 is the board YORK ships for that slot: the populated PCB with PWA 031-02507-100 matches the original connector layout, so every header on the top edge lines up with the existing harness and the board drops straight into the slot without a wiring change. Because it leaves here sealed in the anti-static bag, the surface-mount parts are not handled on a bench before it reaches the customer, and the board number is read from the silkscreen and the yellow sticker before the box closes.

2.Supply & Packaging:

Brand: YORK (Johnson Controls)

Part No.: 331-02507-602 Board

PWA No.: 031-02507-100 (REV A)

Type: VSD Logic Board (variable speed drive control card) Application: YORK YCIV series air-cooled screw chillers

Condition: Genuine original factory new, sealed in anti-static bag Packing: Original YORK box, populated PCB with connectors on top edge Packing Size: ~34.5 x 26.5 x 8 cm

Weight: 0.75 kg

MOQ: 1 piece

Lead Time: 15 days for 1 piece, larger quantities to be confirmed Note: Board revision confirmed against the silkscreen and sticker before dispatch

3.Our Advantage

Kairui Refrigeration supplies YORK, Carrier, Trane and Danfoss control cards to service teams working on chillers already in the field, and electronics are packed as electronics: sealed in anti-static bags, never bench-tested on a workbench without ESD protection, and matched to the chiller serial number before dispatch, because a board that fits the slot but runs the wrong revision shows up as a communication fault on the hottest day of the year. Single boards ship in 15 days by express.