Emerson IC200CX EVO - Page 49

IC200CXEVO
usermanual
49
Diagramofconsenttoactivationoftheauxiliarysource
basedonthesystemwatertemperature.
If,duringoperationwithexternalsourceactive,theoutsideairtemperatureexceedssetpointvalue
Ar12+differentialAr13,thisisswitchedoffandtimeAr14isreloaded.
Backupfunction
Toactivatethefunction,setparameterAr11=2(defaultsetting).
Duringoperation,whentheairtemperaturemeasuredbytheoutsideairprobefallsbelowthe
outsidesetpointvalueAr12,countingofthedelaytimeAr14begins.
If,duringcountingoftimeAr14,theoutsideairtemperaturerisesabovethevaluesetinparameter
Ar12+differentialAr13,thefunctioniscancelledandtimeAr14isreloaded.
Diagramofconsenttoactivationoftheauxiliarysource
basedontheoutsideairtemperature.
If,aftertimeAr14,theoutsideairtemperatureremainsbelowsetpointAr12andthewater
temperaturemeasuredbytheevaporatorthermoregulationprobeislowerthansetpointvalueAr17,
theheatsourceisenabledandthecompressorandcondensationfanareswitchedoff,andheating
takesplaceonlythroughtheexternalsource.
WhensetpointAr17+controlbandAr18isreached,theexternalsourceisswitchedoff.
Diagramofconsenttoactivationoftheauxiliarysource
basedonthesystemwatertemperature.
If,duringoperationwithexternalsourceactive,theoutsideairtemperatureexceedssetpointvalue
Ar12+differentialAr13,thisisswitchedoffandthecompressor(observingthedelaytimes)andthe
fanareswitchedonagainandtimeAr14isreloaded.