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06617645-02
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FREE COOLING CAPACITY
Free cooling capacity correction factor FCC
0
0,5
1
1,5
2
2,5
3
-20 -15 -10 -5 0 5 10
Ambient air temperature (°C)
Mod.
040 045 050 060 070 080 090 110
Nominal Free cooling capacity kW --- --- 43 43 43 45 70 72
Mod.
120 130 140 160 190 210 240 260
Nominal Free cooling capacity kW 72 72 94 94 110 115 135 135
Mod.
300 320 380 430 500
Nominal Free cooling capacity kW 185 185 235 245 240
The nominal Free Cooling capacity is obtained when all compressors are OFF, the return water temperature
from the system is 15°C and the ambient temperature is 2°C. to calculate the free cooling capacity in
different conditions please refer to the above diagram. To obtain free cooling duty multiply the nominal Free
Cooling capacity by the CFC factor obtained.
Return water temperature 15°C
12°C
10
°
C
7°C
5°C