FCAx3 USER MANUAL
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Regulation Temperature Probe
Select the temperature probe used as the regulation temperature probe.
Probe 1 = Probe connected to P1.
Probe 2 = Probe connected to P2. Only available if 2 is selected from “Number of Temperature Probes”.
Probe 3 = Probe connected to D-SW. Only available if 3 is selected from “Number of Temperature Probes”.
Temperature Blind Time
The duration that the regulation temperature probe reading will be ignored after the compressor switches ON.
Temperature Unit
Select the temperature unit used by the FCAx3.
°C = Degree Celsius
°F = Degree Fahrenheit
Note: Once a temperature range has been selected, all temperature values will be converted accordingly. If a display is
connected to the FCAx3, the display by default will display the temperature in this value.
Temperature Dial Type
Select how the FCAx3 acts when the dial is set between values.
Linear = Temperature range will be continuous. When the dial is between two values the controller will respond to approximate
cut-in/cut-out values between the set values or the corresponding markings.
Discrete = Temperature dial will be xed. The controller will only respond to set values. When the controller is between values
the controller will respond to cut-in/cut-out values of the mark which is closer to the set position.
Enable Potentiometer Off Position (Marking 0)
Select the operation of the FCAx3 when the dial position is set to OFF (marking 0).
No = OFF is disabled. The FCAx3 controller will use the OFF position as an extra Cut-in / Cut-out setting using values set in
marking 0.
Yes = OFF position is enabled. FCAx3 controller will turn relays OFF when set in the OFF position and will resume off until the
dial is adjusted to another value.
Enable Fixed Differential
Select the Cut-in temperature selection setting.
No = Fixed differential is disabled. Cut-in and cut-out temperatures will be individually settable.
Yes = Fixed differential is enabled. The differential between cut-in and cut-out temperature will be xed for all markings. Cut-in
temperatures will be set automatically based on selected cut-out temperatures for each marking.
Differential
The differential value between the cut-out temperature and the cut-in temperature for all dial markings.
Normal Setting Temperature Cut-Out
The temperature at which the compressor will turn OFF when the system is running in Normal mode. The compressor will
remain ON until the temperature reaches the Cut-Out temperature.
Normal Setting Temperature Cut-In
The temperature at which the compressor will turn ON when the system is running in Normal mode. If the temperature is below
this value, the compressor will remain OFF.
Set-back Settings Temperature Cut-Out
The temperature at which the compressor will turn OFF when the system is running in Set-back (energy saving) mode. The
compressor will remain ON until the temperature reaches the Cut-Out temperature.
Set-back Settings Temperature Cut-In
The temperature at which the compressor will turn ON when the system is running in Set-back (energy saving) mode. If the
temperature is below this value, the compressor will remain OFF.
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