{"product_id":"lennox-a55-m1-7-70m2101-control-board-with-sub-board-a56-91j89-x014","title":"Lennox A55 M1-7 70M2101 Control Board With Sub board A56 91J89  #X014","description":"\u003cp\u003e\u003cstrong\u003e\u003cem\u003eThis product may contain shelf wear, have minor cosmetic imperfections, or have been tested. All our certified pre-owned products are backed by our return policy. We offer free shipping on all items. Please contact us for discounts or if you have any questions. We look forward to doing business with you!\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e- Integrated Modular Control (IMC) board for Lennox rooftop HVAC units\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e- Model: M1-7 (Version 5.02 compatible)- Part Number: 70M2101 with A55 designation- Compatible with Lennox L Series and S-Class units, 3-50 ton capacity range- Main controller board (A55) serving as input\/output junction point- Supports multiple operational modes including thermostat mode and zone sensor mode- Features LED indicators for status monitoring and diagnostics- Includes DIP switches for unit test and recall functions- Compatible with expansion boards including A56 sub-boards- Supports up to four stages of heating and cooling control- Includes economizer board positioning capability- Compatible with LonTalk Module for network integration (M1-7 version 5.02 or higher)- Field wiring connections for 24-volt thermostat mode operation- Includes service relay output and safety switch input capabilities\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":43673195774061,"sku":"14810","price":390.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/2419\/1853\/files\/s-l800_0978d4bb-c04a-4bd1-a333-4bf033e16370.jpg?v=1763350249","url":"https:\/\/willardshvacsupply.com\/products\/lennox-a55-m1-7-70m2101-control-board-with-sub-board-a56-91j89-x014","provider":"Willard's HVAC Supply","version":"1.0","type":"link"}