Function Details ESIE15-13C
56 Function and Control
Control logic of the Free Cooling
DT-fc: Indoor T - Outdoor T
DT-rs: Room T - Setpoint T
X: To increase the free cooling start temperature
Y: The minimum required DT-fc to start the free cooling
ON
DT-fcY/20 DT-rs ≥ 2+X
Thermo off Y & Thermo on + X
OFF
Free cooling
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