McLean Midwest NEMA 12 Enclosure Air Conditioner
This is a 3800/4000 BTU, 115VAC Single Phase Electronic Enclosure Air Conditioner. It uses L34A Refrigerant. It is mounted on the side or back of electronic enclosures such as Hoffmann to keep the enclosure interior at a constant cool temperature for stability. These units were removed from operating systems and have a 30 day return privilege.