Troubleshooting Guide

TemperatureControllerManual

FeatureofFunction
Thistemperaturecontrolleradoptworldwell‐
knownbrandSCM.Itisreliableanddurable.The
relayisexclusivelyusedforcompressorloadswhich
makeitsafer.Thewayofcontrollingtemperatureis
returntypeandeasytooperate.
Mine‐sizedandintegratedintelligentcontrol,itis
applicabletothecompressorofoneH.P.Suitfora
ventilatedfreezer.
Mainfunctions
• Temperaturedisplay(Celsius/Fahrenheit
degrees)
• Temperaturecontrol
• Evaporatorfancontrol(parallelwith
compressororcontinuousrunningchanges)
• Manual,automaticdefrostbyelectricheater
• Timeortemperaturesettingtoenddefrost
• Thecold‐roomsensortemperaturecanlock
duringdefrost
• Parameterlocking
• Thefactordefaultresumption
• Offsetonsensortemperature
• Selftesting
Specification
• Powersupple:12V~,50/60Hz;Power
consumption:<5W
• Rangeoftemperaturedisplayed:‐ 5 45

C
(‐40~120

F)
4 ~
• R temperature:‐45~45

Cangeofset
(‐40~120

F)
• Temperaturesensor:NTC,doublesensor.
• Outputcontactcapacityforcompressor:N.O.
20A/250V~;50/60Hz.Theinrushcurrentfor
compressorcontrolmaybe20Ainsteadof8A
duringtheperiodof1satstart.(applicableto1
H.P.compressorifmoreconnectedtoAC
contactor)
• OutputcontactcapacityforEvap.Fan:N.O.
20a/250V~;50/60Hz.
• Maincontrollerpaneldim ension 78
X35X76mm.
Mountingdimension:71:29mm
Indicator
• Refrigerant:Whentherefr igerantLEDison,the
compressorisworking.
• Constanttemperature:Whentherefrigerant
LEDisoff,thecompressorhasstopped.
• Delay:WhentherefrigerantLEDflashes,the
compressorstops.
• Defrost:WhenthedefrostLEDison,the
compressorandfanstopandtheheaterworks.
• Evaporatorfan:WhenthefanLEDison,thefan
isworking.
FrontPanelOperation
• Settemperature:Press button,theset
temperatureisdisplayed;Pressorbuttonto
modifyandstorethedisplayedvalue,press
buttontoexittheadjustmentanddisplaythe
cold‐roomtemperature.
• Manualstart/stopdefrost:Pressbuttonand
holdfor6secondstodefrostorstopdefrost.
• Displaytheevaporatortemperature:Press
buttonandholdfor6seconds.Theevaporator
temperaturewillbedispla yed.After10
seconds,thecold‐roomtemperatureisresumed
tobedisplayed.
ParameterSetup
• Indicationforsettingparameter: Theparameter
canbeadjustedonlyaftercorrectPAhasbeen
entered.Allparameterscanonlybechecked,
6
