{"product_id":"oem-lennox-network-control-panel-bas-network-manager-59l21","title":"OEM Lennox Network Control Panel BAS Network Manager — 59L21","description":"\u003cp\u003eThe \u003cstrong\u003eLennox 59L21\u003c\/strong\u003e is a genuine OEM Network Control Panel that enables seamless communication between Lennox HVAC equipment and Building Automation Systems (BAS) through the L Connection Network and Network Manager interface. This control panel is essential for commercial and advanced residential installations requiring centralized HVAC monitoring, scheduling, and control across multiple zones or units. Symptoms of a failing network control panel include loss of BAS communication, unresponsive zone controls, and system fault codes — all corrected by replacing with the authentic Lennox 59L21.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081043558771,"sku":"LNX-59L21","price":39.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-network-control-panel-bas-network-manager-59l21","provider":"National HVAC Parts","version":"1.0","type":"link"}