1143W24E4.00 · EV3 200 Web
03/2021
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Cooling
If the controller receives a cooling request:
• Cooling output (Compressor) between Se r0 and Setpoint .
When the temperature read by Pb1 reaches the value of Se r0
,thecontrolleractivatesthecompressoroutputuntilthe
temperature goes below the threshold set by Setpoint.
Heating
If the controller receives a heating request:
• Heating output (Heaters) between
Setpoint - u7
and
Setpoint - u7 + 2°
.
When the temperature read by Pb1 reaches the value of
Setpoint - u7
,thecontrolleractivatestheheateroutputtoproduce
heat until the temperature goes above the threshold set by
Setpoint - u7 + 2°
.
7.3 COMPRESSOR
The compressor regulator is active in relay output out1 (not configurable).
The switching on/off of the compressor is controlled by:
• Temperature read by probe Pb1;
•
Configurationofheatregulation;
• Defrost and dripping.
Conditions for activation
The compressor is activated if the following conditions are met:
•
Thecontrollerison(regulationisblockedwhenthecontrollerisinstand-by);
•
ProbePb1isworking;
• Compressor activation delay C0 from switch-on is terminated;
• Compressor switch-on delay C2 between 2 consecutive activations;
• If d1
=0.2,defrostanddrippingmustbeterminated.
If a delay C0 or C2
issetandthereisarequestforcompressoractivation,thecontrollerwaitsforthedelaytoendbefore
activatingthecompressor.Duringthewait,the
iconflashesuntilthecompressorisactivated,afterwhichitstayson.
The compressor regulation configuration parameters are:
Par. Description
MU
Range
C0 Compressor ON delay from power-on.
min
0...240
C2
MinimumcompressorOFFtime.
min
0...240
C3 Minimum compressor ON time.
s
0...240
C4
CompressorOFFtimeincabinetprobealarm.
min
0...240
C5 Compressor ON time in cabinet probe alarm.
min
0...240
C6 Condensation temperature above which the condenser overheat alarm sounds.
°C/°F
0...199
C7
Condensertemperatureabovewhichthecompressorlockedalarmsounds,once
C8 time has elapsed.
°C/°F
0...199
C8
Delayinactivationofcompressorlockedalarmduetothreshold
C7 being exceeded.
min
0...15
C10 Compressor days for maintenance.
days
0...990
C11 Second compressor switch-on delay from first compressor switch-on.
s
0...240
