The AK-CC55 Case Controllers series is a family of refrigeration case and cold-room controllers designed to manage appliances that use electronic expansion valves.
The series includes Compact, Single Coil, Single Coil UI, and Multi Coil versions, giving it coverage for both simpler installations and systems that need control of multiple evaporator circuits. These controllers support pressure input, multiple temperature sensor inputs, digital inputs, analog output, and relay outputs, allowing them to handle a range of refrigeration control and monitoring functions within one platform. The control strategy uses temperature readings taken around the evaporator airflow path, while additional sensors can be applied for food-temperature monitoring, evaporator temperature measurement, and defrost-related functions. Across the series, listed product variants also show features such as MODBUS communication, optional LON connectivity on some models, CO2-compliant capability, and support for AKV or TXV/AKV-based control depending on the specific controller version.