{"product_id":"york-031-01472-000","title":"York 031-01472-000 Board","description":"\u003cp\u003eThe \u003cstrong\u003eYork 031-01472-000 SCR Trigger Board\u003c\/strong\u003e is the \u003cstrong\u003eOEM silicon controlled rectifier (SCR) trigger board\u003c\/strong\u003e that York's own renewal parts documentation lists for its \u003cstrong\u003eYork variable speed drives (VSD)\u003c\/strong\u003e, the drives used with \u003cstrong\u003eYork YK and YT style centrifugal chillers\u003c\/strong\u003e. In York's variable speed drive parts list, \u003cstrong\u003e031-01472-000\u003c\/strong\u003e appears as the \u003cstrong\u003eSCR Trigger Board\u003c\/strong\u003e on the \u003cstrong\u003e351 HP\u003c\/strong\u003e and \u003cstrong\u003e503 HP\u003c\/strong\u003e drives (\u003cstrong\u003e292 HP\u003c\/strong\u003e and \u003cstrong\u003e419 HP\u003c\/strong\u003e at 50 Hz) and again on the \u003cstrong\u003e790 HP\u003c\/strong\u003e and \u003cstrong\u003e1100 HP\u003c\/strong\u003e drives (\u003cstrong\u003e658 HP\u003c\/strong\u003e and \u003cstrong\u003e900 HP\u003c\/strong\u003e at 50 Hz), with the same part number shown for both sizes in each pair. That makes it a \u003cstrong\u003elarge-frame chiller drive board\u003c\/strong\u003e, not a generic gate-drive card, and it should be ordered by the complete number printed on the board you are replacing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSilicon controlled rectifiers (SCRs)\u003c\/strong\u003e only conduct when a \u003cstrong\u003egate pulse\u003c\/strong\u003e tells them to, so the \u003cstrong\u003etrigger board\u003c\/strong\u003e is what supplies the \u003cstrong\u003etimed gate firing signals\u003c\/strong\u003e to the SCR power devices in the drive. When the board is healthy, the SCRs switch cleanly and in step with the incoming \u003cstrong\u003ethree-phase line\u003c\/strong\u003e. When it is not, the drive can \u003cstrong\u003efail to start\u003c\/strong\u003e, \u003cstrong\u003efault out\u003c\/strong\u003e on the chiller control panel, or run with unstable power conversion. Because the board sits between the drive's control logic and its high-power SCR section, it is one of the first components technicians suspect when a \u003cstrong\u003eYork variable speed drive\u003c\/strong\u003e will not come up after power-up or trips repeatedly on \u003cstrong\u003eSCR-related faults\u003c\/strong\u003e. Other York SCR trigger boards carry different numbers, such as \u003cstrong\u003e031-02060-001\u003c\/strong\u003e and \u003cstrong\u003e031-02060-002\u003c\/strong\u003e, and boards in the \u003cstrong\u003e031-01472\u003c\/strong\u003e family are also seen with a \u003cstrong\u003e-001\u003c\/strong\u003e suffix (\u003cstrong\u003e031-01472-001\u003c\/strong\u003e), so always match the \u003cstrong\u003ecomplete part number\u003c\/strong\u003e on the original board.\u003c\/p\u003e\n\u003cp\u003eBefore replacing the board, confirm the basics: the \u003cstrong\u003eincoming three-phase voltage\u003c\/strong\u003e and fuses, the \u003cstrong\u003eseating of every harness and ribbon connector\u003c\/strong\u003e, and the condition of the \u003cstrong\u003eSCRs\u003c\/strong\u003e themselves, since a shorted SCR can damage a new trigger board. Look for \u003cstrong\u003eburned traces\u003c\/strong\u003e, \u003cstrong\u003ediscolored components\u003c\/strong\u003e, \u003cstrong\u003ecracked solder joints\u003c\/strong\u003e and \u003cstrong\u003ecorroded connectors\u003c\/strong\u003e on the old board. Work only with the drive \u003cstrong\u003elocked out and tagged out\u003c\/strong\u003e, wait for the \u003cstrong\u003eDC bus capacitors to discharge\u003c\/strong\u003e and verify \u003cstrong\u003ezero volts\u003c\/strong\u003e with a meter, handle the board with \u003cstrong\u003eanti-static precautions\u003c\/strong\u003e, and photograph every connector before disconnecting so the new \u003cstrong\u003e031-01472-000\u003c\/strong\u003e goes back exactly as the original was wired. This is work for a qualified technician familiar with chiller variable speed drives.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eYork Part Number 031-01472-000:\u003c\/strong\u003e This is the number York's own variable speed drive parts list uses for the \u003cstrong\u003eSCR Trigger Board\u003c\/strong\u003e, so you are matching the \u003cstrong\u003efactory part\u003c\/strong\u003e rather than a generic gate-drive board.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eListed Across 351 to 1100 HP Drives:\u003c\/strong\u003e York lists the same \u003cstrong\u003e031-01472-000\u003c\/strong\u003e board on the \u003cstrong\u003e351 HP, 503 HP, 790 HP and 1100 HP\u003c\/strong\u003e drives and their 50 Hz equivalents, which simplifies ordering across the range.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRestores Gate Firing:\u003c\/strong\u003e A new \u003cstrong\u003etrigger board\u003c\/strong\u003e delivers clean, correctly timed \u003cstrong\u003eSCR gate pulses\u003c\/strong\u003e, which is what a drive that will not start or keeps faulting on the SCR section needs from this board.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBuilt for Chiller Drives:\u003c\/strong\u003e Made for \u003cstrong\u003eYork YK and YT style chiller VSDs\u003c\/strong\u003e, so the form, connectors and signal levels match the equipment instead of being adapted from a general-purpose board.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWhat does the 031-01472-000 do?\u003c\/strong\u003e It is the \u003cstrong\u003eSCR trigger board\u003c\/strong\u003e in the \u003cstrong\u003eYork variable speed drive\u003c\/strong\u003e. It sends the \u003cstrong\u003egate firing pulses\u003c\/strong\u003e that switch the drive's \u003cstrong\u003eSCR power devices\u003c\/strong\u003e on at the correct moment.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWhich drives is it listed for?\u003c\/strong\u003e York's variable speed drive renewal parts list shows \u003cstrong\u003e031-01472-000\u003c\/strong\u003e for the \u003cstrong\u003e351 HP, 503 HP, 790 HP and 1100 HP\u003c\/strong\u003e drives (\u003cstrong\u003e292 HP, 419 HP, 658 HP and 900 HP\u003c\/strong\u003e at 50 Hz). The list also separates drive styles and revisions, so confirm your drive's \u003cstrong\u003emodel and serial number\u003c\/strong\u003e and the number on the board you are removing.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIs 031-01472-001 the same board?\u003c\/strong\u003e Boards in this family also appear with a \u003cstrong\u003e-001\u003c\/strong\u003e suffix. Match the \u003cstrong\u003efull part number\u003c\/strong\u003e printed on your existing board, and contact us with the drive's \u003cstrong\u003emodel and serial number\u003c\/strong\u003e if the numbers differ.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eDisclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.\u003c\/p\u003e","brand":"York","offers":[{"title":"Default Title","offer_id":67683628089522,"sku":"031-01472-000","price":6558.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/files\/ac-parts-1000x1000_d8f6c0df-eeb5-4a7f-8ee2-4f92681ea310.webp?v=1755632728","url":"https:\/\/www.gsistore.com\/en-ca\/products\/york-031-01472-000","provider":"GSIstore","version":"1.0","type":"link"}