{"product_id":"oem-lennox-m2-bacnet-replacement-kit-59w51","title":"OEM Lennox M2 BACnet Replacement Kit — 59W51","description":"\u003cp\u003eThe Lennox \u003cstrong\u003e59W51\u003c\/strong\u003e M2 BACnet replacement kit (factory part number 102635-01) is a genuine OEM control module that provides BACnet building-automation connectivity for compatible Lennox equipment. It serves as the M2 communication interface, letting a building automation system read status and issue commands for heating, cooling, ventilation, and economizer functions while reporting alarms and diagnostics back to the front end.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e When the M2 BACnet module fails, you may see loss of network communication, offline points at the BAS, unresponsive remote setpoints, missing alarm and runtime data, or unit control reverting to local-only operation. Electrical surges, moisture intrusion, and component aging are typical causes of failure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e Reliable BACnet integration requires matching firmware and object mapping specific to Lennox controls. The OEM \u003cstrong\u003e59W51\u003c\/strong\u003e kit is factory-validated for correct communication and configuration — aftermarket alternatives can introduce mapping errors, dropped data points, and integration downtime. Choose the genuine Lennox part for consistent, supportable automation. In stock and ready to ship same day.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081130951027,"sku":"LNX-59W51","price":39.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-LNX-59W51.jpg?v=1783762686","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-m2-bacnet-replacement-kit-59w51","provider":"National HVAC Parts","version":"1.0","type":"link"}