Kegco KOMHK38BSU-3 User manual

Type
User manual
Model:SF-138DigitalTemperatureController
FrontPanelOperation
1.Settemperature(compressorstoptemperature)adjustment
Pressbutton,thesettemperatureisflashdisplayed.
Pomodifyandstorethedisplayedvalue.Pressbuttontoexitthe
statusanddisplaythecoldroomtemperature.
Ifnomorebuttonispressedwithin6seconds,thecoldroomtemperaturewillbedisplayed.
(Settemperatureadjustmentrange:parameterE1E2)
2.Pressbuttonforoncetoflashdisplay2L,itwillresumenormaldisplayafter6seconds.
3.RefrigerationLED:Duringrefrigeration,theLEDison;Whenthecoldroomtemp.isconstant,the
LEDisoff;Duringthedelayprocess,theLEDflashes
4Evap.FanLED:Whenthefanwork,theLEDison;whenthefanstopsrunning,theLEDisoff.
5.Pressbuttonforoncetostartorstopthelight.
6.Longpressbuttonandbuttonfor1secondtoswitchtheCelsiusandFahrenheitdegreeforonce.
7.Powerswitch:Longpressbuttonfor3seconds,allthecontroloutputsstopped(thelightisnotaffected),
andwilldisplay---.Pressbuttonfor1secondtostartup,anddisplaythecold-roomtemperature.
8.Parametersetup
Pressbuttonandholdfor6secondstoentertheparametersetupmodewhileE1flashes.
Pressagainbuttontoselectsequentiallyfromtheparameters:E2,E3....A2,A3.
Pressorbutton,thevaluesofparameterwillbedisplayedandcanbemodified.
Ifnomorebuttonispressedwithin6secondswillexitandstorethenewvalues.
ressorbuttontadjustment
~
.
FeaturesofFunction
TemperatureControl/Manual,automaticdefrost/Evap.Fancontrol/ValueStoring/SelfTesting
Specifications
1.Temperaturesensor:NTC(B=3380,10K=25),1pc(cold-room),2meters(Neitherpositivenornegative)
2.Rangeoftemperaturedisplayed:45~120(-49~248);Accuracy:12
3.Rangeofsettemperature:45~45(-49~113);Factorydefault:04(39)
4.Dimension:77(Length)35(Width)30(Depth)mm
Mountingholedimension:71(Length)29(Width)mm
5.Temperatureoftheoperatingenvironment:10~60(14~140)
RelativeHumidity:20%~90%(Non-condensing)
6.Relayoutputcontactcapacity:
Compressor:N.O.20AFan:12VDC/0.18ALight:12VDC/50mA
±±℉)
℃℉
××
×
℃℉
9.Thefactorydefaultresumption:pressbuttonandbuttonsimultaneouslyfor6seconds,theindicator
flashdisplay888,allparametersandsettemperaturewillberesumedasfactorydefaultsatthistime.
After6seconds,itwillreturntonormaloperation.
10.Lockparameters
Innormaloperating,pressbuttonandholdfor6secondstolocktheparametersifLOCisdisplayed,
ortounlockifOPisdisplayed.Parameterscanbedisplayedonlyandcannotbemodifiediflocked,
buttheadjustmentofthesettemp.isactive.(ThefactorydefaultisOP)
Parameter
Parameter
FunctionFunction
Setrange
SetrangeDefault
Default
Settemp.
Settemp.
E1
Lowersetpointlimit
F4
00=Parallelwithcomp.
(Stopwhendefrost)
01=Continuousrunning
(Stopwhendefrost)
02=Parallelwithcomp.
(Startwhendefrost)
03=Continuousrunning
(Startwhendefrost)
Evap.Fanstarting
mode
0160Min
0024Hr
20Min
4Hr
F1
F2
F3
0010Min
03Min
E2
E3
E4
E5
E6
Highersetpointlimit
Temp.hysteresis
Comp.Startdelaytime
Offsetonroomtemp.
OffsetonEvap.Temp.
Max.Defrostduration
Defrostintervaltime
01
F5
113
45
75
24
-49
-45
23
-5
02
18
01
10
05
03
18
18
10
10
18
18
10
10
54
12
32113
0045
01
Defrostterminationtemp.
Displayduringdefrost
00=Nomaldisplay
01=Lastvaluebefore
defrost
00
00
00
00
H1.
H2
H1
Hightemp.Alarmvalue
H2
H3
Alarmdelaytime
113
45
86
30
-40/
5
-15
Lowtemp.Alarmvalue
00120Min
30Min
00=Nomaldisplay
01=Lockingslowly
display
01
01
A1
A2
Cold-roomtemp.
Displaymode
Doorswitchcontrol
00=thereisnot
01=thereis
A3
00=settemp.Adjustable
01=settemp.Canbe
checkedonly,unadjustable
Settemp.Adjustment
mode
00
Functiondetail
1.Temperaturecontrol
(Whenfirsttimepoweron,pressbuttonforoncecancanceldelayandenterautomaticcontrolmode)
Thecompressorstartsoperatingwhencoldroomtemperature(settemperature+hysteresis),andwill
beoffwhencoldroomtemperaturesettemperature.
Toprotectthecompressor,itcanre-startunlessthetimewhenthecompressorstopseverytimeislonger
thanthedelaytime(ParameterE4).
2.Defrostfunction
Afterworkingadefrostintervalwillautomaticenterthedefroststatus.ThedefrostLEDison,the
compressorstops.Afterdefrostduration,willexitdefroststatus,after2minutesdrippingtime,ifthe
cold-roomtemperatureishigherthan(settemp.+TemperaturehysteresisE3),thecompressorstarts.
Whendefrostintervalissetto00,theautomaticdefrostfunctionwillbecancelled.
3.Temperaturedisplay
WhenparameterA1=01,thetemperaturewilldisplayslowly:withthespeedofonedegreeevery30
secondstoreachtheactualtemperature,anddonotaffectthecompressorworkingnormally.
Whenstartedup,andaftertheactualtemperaturereachthesettemperatureforonce,onlyifthecold
roomtemperatureiswithintherangeof(settemp.+parameterE3+1),willdisplaythesettemperature,
otherwisethetemperaturewilldisplayinlowspeed.
4.Displayduringdefrost
WhensettingparameterF4=0,thecoldroomtemperaturewilldisplaynormally.
WhensettingparameterF4=1,theroomtemp.islockedduringdefrost,andthelastvaluebefore
defrostisdisplayed.Whendefrostends,normaldisplaywillberesumedafter20minutesdelayofroom
temp.Display.If(parameterA1=01),thecold-roomtemperaturewilldisplayslowly,thedefrostLED
flashesduringthelockingdelayprocess.
5.Fancontrol
WhenparameterF5=01,theEvap.Fanpoweronandkeepworking.(Stopwhendefrost)
Thecondenserfanworksynchronizedwiththecompressor.
6.Doorswitchcontrol
WhenparameterA2=01,whendetectthedoorisopen,theEvap.Fanstops,thelightison,atthistime,
when(parameterA1=01),willlockthecold-roomtemperaturedisplay;ifthedoorisnotclosedformore
thanoneminute,thebuzzersound,pressrandombuttontocancelthesound;ifthedoorisnotclosed
formorethan10minutes,thelightwillturnoffautomatically;untilthedoorisclosedfor5minutes,
thenthetemperaturewilldisplayinlowspeed.(Doorswitchlineopen-circuited=doorclosestatus;
doorswitchlineshort-circuited=dooropenstatus.)
7.Highlowtemperatureoverlimitalarm
Afterthecompressorturningonandoffnormallyforonce,canenterthealarmstatus.
Whencold-roomtemperatureishigherthanH1parametersetvalue,andpassalarmdelaytime(parameterH3),
willflashanddisplaythecold-roomtemperatureandexitthedefroststatus.Whenthecoldroomtemperature
islowerthanH2parametersetvalue,andpassthealarmdelaytime(parameterH3),willflashanddisplay
thecold-roomtemperature,thebuzzersound,pressrandombuttontocancelthesound.
8.Abnormalworkmode
9.CircuitDiagram:
Errorcode
1H
1L
2H
2L
Instruction
Cold-roomsensorshort-circuitedorhightemp.
Overlimitmorethan120/248()℃℉
Cold-roomsensoropen-circuitedorlowtemperature
overlimitlessthan45/49()-℉
Evap.Sensoropen-circuitedorlowtemperature
overlimitlowerthan45/49()-℃
-℉
Evap.Sensorshort-circuitedorhightemperature
overlimitmorethan120/248()℃℉
Operation
Afterthecompressorstopsfor
15minutesandthenworkfor30
minutesincycle;
thebuzzersound,pressrandom
buttontocancelthesound.
Defrostwillonlyaffected
bydefrostintervaltime.
NotesforInstallation
Accessoriesforthetemperaturecontroller
1.Sensorleadsmustbekeptseparatelyfrommainvoltagewiresinordertoavoidhighfrequencynoise
induced.Separatethepowersupplyoftheloadsfromthepowersupplyofthecontroller.
2.Wheninstallationtheprobeshallbeplacedwithheadupwardandthewiredownward.Theevaporator
probemustbeinstalledbetweenthefindoftheevaporatorinthearea,whereprobablytheiceisthe
thickest.Donotplacetheevaporatorprobeneartheelectricheater.
3.Incaseoflong-distanceprobeinstallationfromthecontroller,theprobecablemaybeprolongedupto
100mmax.withoutanyre-calibration
4.Thetemperaturecontrollercannotbeinstalledintheareawithwaterdrops.
1.Onetemperaturesensor
2.Oneinstallationstand
3.Fourconnectingwires
7
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Kegco KOMHK38BSU-3 User manual

Type
User manual

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