Page 32 MUL41E-0610/06-2011
18 - FREECOOLING
18.1 - Function
The freecooling option ensures to reduce the electrical consumption using the outside air temperature to produce
cool water.
18.2 - Description
The freecooling uses water coil with helicoids fans control by the CLIMATIC™ 60. The freecooling has a higher
priority face to the compressors. Once the freecooling capacity is over 95% for 2 min, the compressors can be
engaged if necessary in order to reach the cooling set point. If the freecooling capacity decreases below 90%, the
capacity factor of the compressor(s) capacity is locked to give the priority to the freecooling.
The freecooling is enabled if the following conditions are met:
• The unit is ready (On/Off, water flow, none alarm, etc..),
• The freecooling fan driver is operating (none alarm)
• Outside temperature < (Inlet temperature – 3°C).
18.3 - Settings
The setting to configure the freecooling option is available in the menu:
• (3164): Configuration of the freecooling option.
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