The temperature control is based on a direct reading of the air temperature in refrigerated cases. It automatically positions the DT-EEPR valve that throttles the suction on the evaporators. This throttling action increases the evaporating pressure and/or temperature with respect to the suction manifold pressure. DT-EEPR controlled valves are considerably more precise than mechanical Evaporator Pressure Regulator (EPR) valves, allowing regulation of the average temperature to within ±0.18°F or better. In addition, the setpoint can be modified through a simple software command using the MT Alliance® software configuration tool.
Using state of the art technology and algorithms, the DT-EEPR controller uses a predictive information model to optimize control and improve overall refrigeration performance. With the data collection abilities of Micro Thermo's MT Alliance front end, the DT-EEPR can help you achieve better results than other controllers in the industry.
The DT-EEPR provides you with the ability to control dual temp case temperature without the need for mechanical adjustment. The controller automatically readapts itself based on the dual switch position and readjusts the valve opening accordingly using the new settings. In addition, the controller supports clean switch functionality.