Benefits:

Enhancing flexibility and supporting sustainable solutions

• EKC 313 is a dedicated cascade controller developed for the sole purpose to control and optimize cascade systems
• It brings you efficient control of a cascade heat exchanger being able to cope with the extreme temperature differences in the heat exchanger (between condenser and evaporator sides) particularly when running with CO₂as refrigerant
• EKC 313 can run with two different refrigerants whereby you can choose the most efficient refrigerant for high and low temperature circuits in your specific system – could be CO₂or a HFC or a combination
• Low temperature circuit using refrigerant R744 (CO₂) can be designed as a standard 40 bar system where cheaper standard components can be used

Application & Product Features

A cascade system exchanges heat between two separate systems by applying a cascade heat exchanger. The heat exchanger transfers heat from one system to the other:

• One side of the heat exchanger is used as a condenser – the low temperature circuit
• The other side of the heat exchanger is used as an evaporator – the high temperature circuit

The controller can be used in systems with cascade regulating and CO₂as refrigerant on the low temperature circuit. It can regulate the cooling of the heat exchanger in one of two ways:

• Optimize superheat
• Regulate the condensation pressure at the low temperature circuit while ensuring that the superheat does not become too low