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Fan control
Fans are controlled through sensor 2 (evaporator), and parameters F0 (stop temperature) and F1 (sensor differential).
If sensor S2 is not connected or an error in the sensor (E2) is detected, the fans continuously operate without taking
into account parameters F0 and F1, but taking the remaining parameters (F2 to F4) into account.
Using parameter F2, the status of the fans during compressor stops is defined.
Using parameter F3, the status of the fans during defrost is defined.
Parameter F4 defines the fan start-up delay time after defrost (See page 20).
Parameter C22 defines whether fans stop when the door is opened.
ON/OFF control (F10=0)
This type of control starts or stops the fans depending on the temperature at sensor S2. If F2=0 the fans start when
the temperature falls below the value defined in F0 minus the differential F1, and stop when the value of F0 is
reached.
If F2=1 the fans stop when the compressor stops or when the temperature defined in F0 is reached, and start if the
temperature drops below F0 minus F1, as long as the compressor is running.
Control via frequency inverter or electronic fans (F10=1)
This function regulates the fan speed via the AO output according to the temperature at sensor S1. The fan speed
decreases as the temperature approaches SP and increases as it approaches SP + C1.
Fans
100%
0%
20%
Fans
AO
S2
SP + C1
SP
Содержание AKO-16526
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