Using heat pumps for cooling technology and industrial waste heat recovery

The system that you see here is used to continually produce heat and cooling – the cooling is used to cool our vacuum manufacturing systems and the heat is used to heat the building and hot water. If too much excess heat is produced and we have a surplus, then we vent it through outdoor cooling towers.

On the cooling side, the heat pumps not only cool the vacuum coating equipment but also produce cooling for ventilation and air conditioning units. Water to water heat pumps are used with fully hermetic scroll compressors. To precisely manage cooling capacity for air conditioning, the system is equipped with a variable speed compressor unit. There are a total of nine aggregates here. Eight are dual compressor Aqua Master 180 Z aggregates, and one is an Aqua Master 90 I with variable output. The system is designed so that the outputs of individual aggregates are connected in cascade.

The main advantage is that the compressor circuits are very compact. They are supplied as part of the delivery, and during installation no work on the cooling circuits is required, which eliminates the main source of cooling system malfunctions such as leaks and so on.