LRV Tube Coil Evaporators consist of a cylindrical steel shell containing the finned tube coil of copper. The shell is of welded construction and equipped with fixing brackets. The total shell surface is protected outside and inside with a plastic coating against corrosion.Due to the unscrewable cover flange, the heat exchanger can be removed for cleaning purposes.

The refrigerant is uniformly injected into the individual finned tubes by means of a manifold unit. The heating medium is circulating in cross-counter current on the shell side around the tube coil heat exchanger.

The HGW Tube Coil Heat Exchangers consist of one or two tube coils from copper, which are brazed into a cylindrical cupro-nickel shell. The ends of the tube coils can be connected directly with the tubing outside the shell. By this design a brazing seam between tube and shell side - e. g. refrigerant/oil mixture and domestic water - is avoided.

The hot gas flows on the shell side of the HGW Tube Coil Heat Exchanger. This hot gas, dependent on intended application, cools down or condenses on the extended outer surface of the fin tube coils. The cooling medium to be heated flows in the tube coil according to the counter flow principle, thus heating to above the condensing temperature of the refrigerant.