Electrolux E23CS75DSS0 - Section C - Electronic Control System; Example 1 IQ-TOUCH (Version B); Example 2 Wave-Touch (Version A); Description

40
Section C - Electronic Control System
Sensors
NegativeTemperatureCoefcientThermistor.
Fresh Food Lights
Freshfoodlightsareenabledanddisabled
dependingonthefreshfooddoorlightswitchstate.
Lightstaysonmaximumof15minutes.
Description
Damper Assembly
Motorizeddoor(+12VDC)locatedbetweenthe
freezersectionandthefreshfoodsectionofthe
refrigerator.Dooropenstoacertainpositionwhen
therearerefrigerationrequirementsinthefresh
foodsection.Thedampermotor,whichpositions
thedoor,isa12VDC,2-phase,bipolarstepper
motor.
Freezer Temperature Control
Electronicthermostatregulatingthetemperatureof
thefrozenfoodsection.ANegativeTemperature
CoefcientThermistormonitorsfreezer
compartmenttemperature.Loadscontrolledare
thecompressor,condenserfanandevaporatorfan
motorenablingandspeed.
Fresh Food Temperature Control
Electronicthermostatregulatingthetemperature
ofthefreshfoodsection.ANegativeTemperature
CoefcientThermistormonitorsfreshfood
compartmenttemperature.Loadscontrolledare
thedampermotor(position)andevaporatorfan
motorenablingandspeed.
Defrost Heater
450wattheatingelement(115VAC)locatein
theevaporatorassemblytomeltfrostduringthe
defrostcycle.Thedefrostheaterisconnectedto
theNOcontactofarelay.Defrostheateroperation
isdetectedandinternallymonitoredbythe
microprocessor.SeeDiagramA.
Defrost Termination Thermostat (DTT)
Bi-metal disc thermostat attached via a clampto
theevaporatortubing.Duringthedefrost cycle,
the device is a closed circuit between the defrost
heater and Neutral. The DTT is designed to
open at a predeter mined temperature ending the
defrost cycle.
Theairlterislocatedinthetoprightsideofthe
foodcompartment.Airiscirculatedthroughthe
lterbytheevaporatorfanmotor.
Example 1 IQ-TOUCH (VERSION B) Example 2 Wave-Touch (VERSION A)
Standard Compressor
Motorizedpump(115VAC)thatcreatesthehigh
andlowpressuresrequiredforheatexchange.The
StandardCompressoriscontrolledbyarelay.
Evaporator Fan
MotorizedFan(12VDC)thatcirculatesfreezer and
fresh food section air. The evaporatorfanmotor
speediscontrolledviaa +12 VDC circuit.
NOTE
Thefanmotorwillrunatvariablespeed(2000to
2700RPM)exceptwhenthefreezerdoorisopen.
Whenthefreezerdoorisopenthefanmotorwill
runatslowspeed(2000RPM).
Condenser Fan
MotorizedFan(115VAC)thatcirculatesairthrough
thecondensercoils.EitheraRelayorTriac
dependingoncompressorusedcontrolscondenser
FanMotor.
Air Filter
NOTE
Interiorlightswillshuroffiffooddoorisleftopen
forover15Minutes.Closeandre-opendoorto
reset.