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TWIN-COOL
The LEONARDO Twin-Cool units are characterised by two completely
different independent cooling circuits:
• A chilled water circuit.
• An air cooled or water cooled direct expansion circuit.
The unit is normally used where an installation has a chilled water source
but the direct expansion circuit can be used according to demand.
The control system automatically starts the direct expansion circuit if
the chilled water supply fails of if the water is not cold enough to dissipa-
te the entire heat load. Alternatively, the unit control can be set to direct
expansion, activating chilled water operation only in the event of a
compressor malfunction, if the water temperature in relation to the room
temperature allows it.
Twin-Cool units therefore provide a very high level of security, ensuring
continuous system operation at all times and with the flexibility to manage
the cooling resources in the best way for the particular installation.
Operating description
