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The size of the chamber is defined by the amount of pallets you want to cool at the same time, and their individual dimensions. The size of the chamber will decide the number of vacuum pumps to be used. For the vacuum we are using pumps of the market leaders Busch and Elmo Rietchle. These pumps hardly need maintenance, are reliable and make very little noise.
The evaporator (water catcher, special "ColdMax" technology, patent pending!) inside the vacuum chamber condenses the water vapour, and ensures only dry air leaves the vacuum chamber towards the pumps. Outside the chamber, the cold medium (R 404a) is cooled down by a refrigeration system. The compressor needed for this heat exchange process is supplied by Bitzer (Germany) or by Hanbell (Taiwan).
Three types of condenser systems can be chosen for cooling down the cold medium:
Air condenser: The simplest construction, suitable for small systems. Easy to integrate.
Water condenser: Low cost, efficient and easy to install. Perfect for most European climates.
Evaporative condenser: Optimal system for dry climates, or if water availability is limited.