Since we do not sell SKM product it is somewhat difficult to know the specs for those air conditioning units. From the search I've done, the AMPR units require a duct temperature sensor for controlling the unit based on the return/supply air duct temperature. We don't have a way to reverse cross reference the Marvair 70646 to see what it can fit. We would recommend consulting a local licensed technician familiary with the SKM systems to see what specifically would work in your system, or if you can find a part number on the part you want to replace we may be able to find a cross reference for you.
Replied on June 13, 2019 by Ron from Industrial Stores
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