FCAx3 USER MANUAL
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4. FEATURES
4.1 TEMPERATURE BLIND TIME
The software will ignore the sensor temperature reading for the first few seconds (a pre-set value of 10 seconds) after the
compressor is switched on. This is to prevent short-term thermal effects such as those caused by the fan starting to operate
causing disconnection.
Cut in
Average
Cut out
On
O
Less than
Temperature
Blind Time
Temperature
Compressor
4.2 BAD VOLTAGE BLIND TIME
The software permits high and low mains voltages transitions for short periods of time preventing inadvertent compressor
stop-starts. Present values of 0.5 and 2 seconds (configurable) respectively are implemented.
However, if the mains voltage becomes too extreme (HVD + 10%) and (LVD - 20%), the FCAx3 will immediately disconnect the
compressor.
IDH
HVD
LVD
IDL
On
O
Intelligent time delay
Less than 0.5 secs
Less than 2 secs
Intelligent time delay
High limit
Low limit
Mains power
Compressor
IDH= Immediate Disconnect High
IDL= Immediate Disconnect Low
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