This is a general guide for finding and using the manual for an air conditioner (Spanish: aire acondicionado ). Airmart is a brand often sold in Latin American markets (Mexico, Colombia, etc.), typically for split systems, window units, and portable ACs. 1. How to find the correct manual A. Check your unit’s label Look for the exact model number on a sticker on the side or back of the indoor/outdoor unit. Example: AMC-12K , AMW-18HN1 , AM-P12C . B. Search online Use this search string (replace MODELO with your model):