Danfoss EKC 414A User Manual
REFRIGERATION AND AIR CONDITIONING
ADAP-KOOL
®
Refrigeration control systems
Controller for controlling one evaporator
EKC 414A
Manual
Refrigeration and Air Conditioning Controls
2 Manual RS.8C.K3.02 © Danfoss 09-2003 EKC 414A
Introduction
Application
The controller is a complete control unit for refrigeration
appliances with integrated refrigeration-technical functions
capable of replacing a setup of thermostats and timers.
The relays are used for operating:
- Compressor
- Fan
- defrost
- Alarm
- Light
The controller can operate one evaporator.
The intended placing of the controller is “on/near the
refrigeration appliance” and the controller is therefore
provided with plugs at the sensor connection points. All
sensors used must therefore be fitted with a belonging plug.
Operation
The controller comes without operating buttons on the front
panel, and it will require no operation once it has been set
and started up.
When the controller is operated, it can be done in one of the
following ways:
• Connection of an external display with operating buttons
- The display will currently show measurements and settings
in the menu system
- In case of malfunction the relevant error code will be
shown on the display
- Four light-emitting diodes will show the system’s actual
function:
› refrigeration
› power for the AKV valve
› defrost
› fan operating
› when there is an alarm the three LED’s will flash
• Data communication
The controller can be hooked up with other products in the
series of ADAP-KOOL® refrigeration controls. The
operation, monitoring and data collection can then be
performed from a PC – either on site or at a service
company.
Customer display
If the temperature in the appliance is to be visible to, say,
customers, a display can be mounted.
Inject ON function
The expansion valve closes when the signal at the 230V input
is removed or receives a signal via the data communication.
In this way it is ensured that the expansion valve will not
charge the evaporator when the compressor has stopped.
(The threading of the function may be cancelled via a
setting).
Digital input
A digital input can be defined for one of the following applications:
Door alarm
Defrost start
Night operation
Start/stop of regulation
Joint defrost start/stop with a master/slave function
Data communication
The controller is provided with LON RS 485 data communication. More about this data communication on page 18.
EKC 414A Manual RS.8C.K3.02 © Danfoss 09-2003 3
Function
Liquid supply
The supply of liquid is controlled on the basis of signals from
the pressure transmitter, temperature sensor S2 and the air
temperature. The sensors create a signal so that the
superheat is continuously kept at a minimum whatever the
operating conditions.
The AKV valve functions both as expansion valve and
solenoid valve. The valve opens and closes based on signals
from the controller.
Temperature control
The temperature is controlled on the basis of signals from one
or two temperature sensors. If there is only one sensor it may
optionally be placed in the air before or after the evaporator. If
there are two sensors, one must be placed before and one
after the evaporator. With a setting it is subsequently defined
how large an influence the individual sensor is to have on the
control. The actual temperature control can take place in two
ways: as an ordinary ON/OFF regulation with a belonging
differential, or as a modulating control there the temperature
variation will not be nearly as great as in ON/OFF control.
There is however a limit to the use of them as a modulating
control can only be used in central plant. In a decentralised
plant the thermostat function with ON/OFF control should be
selected.
In a central plant the thermostat function may either be
selected for ON/OFF control or modulating control.
Defrost
With a simple function defrost can be started x times per day
and night. But the controller may also receive a signal from a
defrost clock or from another unit via the data communication,
so that defrost will take place at defined times of the day or
night.
An on-going defrost can be stopped based on temperature,
normally the one measured with the S5 sensor, or it may be
stopped based on time. A combination with stop based on
temperature and with the time factor as a precautionary
measure is also a possibility.
Clock module (accessory)
If the controller is mounted without data communication and
defrost has to be carried out at specific times, a clock
module can be mounted.
The controller comes prepared with plug and terminals so
that the module just has to be pushed in.
Subsequently, up to six defrosts per day can be set. The
module has battery back-up.
On / Off control
Modulating control
4 Manual RS.8C.K3.02 © Danfoss 09-2003 EKC 414A
noitcnuF -araP
retem
aivnoitarepO
noitacinummocatad
Th noitcnuftatsomre lortnoctatsomrehT
ecnerefeR
tesehtfoegnahcA.eulavtesehtfosisabehtnosetalugertatsomrehtehT
.30rdna20rnisgnitteshtiwdekcol/detimilebnaceulav
-pmettuotuC
laitnereffiD
eht,laitnereffidteseht+ecnereferehtnahtrehgihsieruarepmetehtnehW
semocerutarepmetehtnehwniagatuotuclliwtI.nituceblliwyalerrosserpmoc
.ecnerefertesehtotnwod
10rlaitnereffiD
ecnerefeRoitatimiln
tahtos,nwoddeworranebyamecnereferehtrofegnargnittess’rellortnocehT
gnitluserhtiw-yllatnediccatestoneraseulavwoloothcumrohgihoothcum
.segamad
eulavecnereferelbawolla.xameht,ecnereferehtfognitteshgihootadiovaoT
.derewolebtsum
20rtuotuCxaM
ootadiovaoT eulavecnereferelbawolla.nimeht,ecnereferehtfognitteswol
.desaercniebtsum
30rtuotuCniM
tinuerutarepmeT
niseulaverutarepmetwohsotsirellortnocehtfierehteSC°
.F°niro
50rtinu.pmeT
0=C°
ehtrevetahw,MKAnoC°ylnO(
)gnittes
)tuoS(4SmorflangisfonoitcerroC
elbacrosnesgnolhguorhtytilibissopnoitasnepmoC
90rtuoStsujdA
)niS(3SmorflangisfonoitcerroC
elbacrosnesgnolhguorhtytilibissopnoitasnepmoC
01rniStsujdA
noitaregirferfopots/tratS
.deppotsdnadetratsebnacnoitaregirfergnittessihthtiW
hctiwslanretxeehthtiwdehsilpmoccaeboslanacnoitaregirferfopots/tratS
.tupniIDehtotdetcennocnoitcnuf
21rhctiwSniaM
eulavkcabtesthgiN
ehtnehweulavsihtybdesaercnieblliwecnerefertess’tatsomrehtehT
otsierehtfieulavevitagenatceleS(.noitarepothginotrevosegnahcrellortnoc
).noitalumuccadloceb
31rtesffothgiN
noitcnuftatsomrehT
yranidronasarehtiE.etarepootsitatsomrehtehtwohdenifedsitiereH
.tatsomrehtgnitaludomasarotatsomrehtFFO/NO
tatsomrehtFFO/NO:1
gnitaludoM:2
ostnaregirferfowolfehttimillliwevlavVKAeht”gnitaludom”sinoitareponehW
.tatsomrehtFFO/NOehtrofnahtsseleblliwnoitairaverutarepmetehttaht
.gnittestatsomrehtFFO/NOehttcelestsumuoytnalpdesilartnecedanI
onlacitnediebtsumlaitnereffiddnaeulavtuotucrofsgnittess’tatsomrehtehT
tatsomrehtehtsi4Sfi,K5.g.E.detcelessisnoitcnufowtehtfohcihwrettam
.rosnestatsomrehtehtsi3Sfi,K3ro,rosnes
.K5nahtrewoltesebtontsumlaitnereffidehtstatsomrehtgnitaludomroF
41redom.mrehT
Ref. Dif.
Survey of functions
EKC 414A Manual RS.8C.K3.02 © Danfoss 09-2003 5
rosnestatsomrehtfonoitceleS
,3S.noitcnuflortnocstirofesuotsitatsomrehtehtrosnesehtenifeduoyereH
htiW.)niS(desusi3Sylno,%0gnittesehthtiW.mehtfonoitanibmocaro,4S
)tuoS(4Sylno,%001
51r%tuoS
noitcnuftleM
ehttahtserusnenoitcnufehT.)C°01+ot5-(noitaregirferfolortnocrofylnO
otsinoitcnufehtnetfowohtesuoyereH.tsorfybdesolcebtonlliwrotaropave
sierehtfieciro(retawottsorfehtmrofsnartecnehdnanoitaregirferehtpots
.)tsorfhcumoot
61rlavretnitleM
doireptleM
.tsalotsinoitcnuftlemgniog-nonagnolwohtesuoyereH
71rdoireptleM
kcabteSthgiN
noitarepoyadsevigFFO
noitarepothginsevigNO
sgnittesmralA sgnitteSmralA
.snoitautistnereffidnimralaevignacrellortnocehT
tnorfehtnohsalflliw)DEL(sedoidgnittime-thgilehtmralanasierehtnehW
.261AKEfolenap
noyaleDmralaerutarepmet
eblliwnoitcnufremita,dedeecxesi41Aro31AseulavtimilowtehtfoenofI
.dessapsiyaledemittesanehwelbisivemocebylnolliwmralaehT.detrats
.setunimnitessiyaledemitehT
30AyaledmralA
mralaroodrofyaledemiT
”ehtninoitinifedees(noitcnufgnirotinomroodarofdesusitupnilatigidehtfI
nepohtiwdoirepnevigalitnunevigebtonlliwmralana)noitces”suoenallecsiM
.despalesahrood
.setunimnitessiyaledemitehT.
40AlednepOrooD
gniloocrofyaledemiT
aretfayletaidemmi,tsorfedgnirud,pu-tratsgniruddesusiyaledemitsihT
otrevo-egnahceblliwerehT.desuneebsahnoitcnufNOehtnehwdna,tsorfed
tesehtwolebdeppordsaherutarepmetehtnehw)30A(yaledemitlamroneht
.timilmralareppu
.setunimnitessiyaledemitehT
21AlednwodlluP
timilmralareppU
sieulavtimilehT.tratsotsierutarepmethgihrofmralaehtnehwtesuoyereH
.noitarepothgingniruddesiareblliweulavtimilehT.)eulavetulosba(C°nites
fidesiarebylnolliwtub,kcabtesthginroftesenoehtsaemasehtsieulavehT
.evitisopsieulaveht
31AriAmiLhgiH
timilmralarewoL
sieulavtimilehT.tratsotsierutarepmetwolrofmralaehtnehwtesuoyereH
.)eulavetulosba(C°nites
41AriAmiLwoL
mralateseR
nehwsmralallastesernoitcnufehT
.NO.sopnites
rorreCKE
.sutatsmralaehtdaernacuoyereH
Cnoitcnufrosserpmo lortnocrosserpmoC
ehtnehW.tatsomrehtehthtiwnoitcnujnocniskrowyalerrosserpmocehT
.detarepoebyalerrosserpmocehtlliwnoitaregirferrofsllactatsomreht
semitgninnuR
sirosserpmocehtemitehtroftesebnacseulav,noitareporalugerritneverpoT
.deppotsebotsahtsaeltatignolwohrofdnA.detratsneebsahtiecnonurot
)setunimni(emit-NO.niM 10cemitnO.niM
)setunimni(emit-FFO.niM 20cemitffO.niM
6 Manual RS.8C.K3.02 © Danfoss 09-2003 EKC 414A
tsorfeD lortnoctsorfeD
langisaaiv,noitacinummocatadehtaiv:syawevifnidetratsebnactsorfedA
ybronoitcnufremitlanretninaaiv,gnittesdnaeludomkcolcaiv,tupniIDehtta
ehttesotdednemmocersitI.snottublortnoc’syalpsidehtforewolehtnohsupa
noitcnufremitehT.desusisnoitpotsrifeerhtehtfoenofinevenoitcnufremit
ehT.eudrevoebdluohstratstsorfedlanigiroehtfidoirepytefassatcanehtlliw
ebnacrosneserutarepmetaro,emitnodesabdeppotsebnacflestitsorfed
erutarepmetnodesabdeppotsebnactsorfedtahtosrotaropaveehtnodecalp
.eulav
tsorfeDerutarepmetpots
ebnactsorfedeht,rotaropaveehtnodetnuomneebsahrosnestsorfedafI
tsorfedafI.tessieulaverutarepmetehT.erutarepmetnevigatadeppots
.emitnodesabdeppotseblliwtsorfedeht,detnuomneebtonsahrosnes
.01ddna4d.fC
20dpmeTpotS.feD
stratstsorfedneewteblavretnI
aaivronoitacinummocatadehtaivtsorfedehttratsotdednemmocersitI
ehtfierusaemyranoituacerpsagnittessihtesunehtdnatupniIDehttalangis
retaergebtsumlavretniemiteht(raeppaotliafdluohslangistsorfedlamron
.)stratstsorfedlamronowtneewtebemitehtnaht
noitcnuftratstsorfedelpmisasadesueboslayamnoitcnuflavretniehttuB
otsitsorfedfI.sruohthgieyreve,yas,yllacidoirepdetratssitsorfedehterehw
.ylgnidroccaedamebtsumgnitteseht,yadehtfosemitcificepstademrofrepeb
.)eruliafrewoparetfatesorezsiretnuoclanretniehT(
.tratstsorfedhcaetatesersilavretniemitehT
30dlavretnI.feD
noitarudtsorfed.xaM
lliwgnittessiht,erutarepmetnodesabtsorfedpotsotnesohcevahuoyfI
nodesabpotsonfideppotseblliwtsorfedehterehwdoirepytefasaetutitsnoc
.nehtybecalpnekatsaherutarepmet desabpotstsorfeddetcelesevahuoyfI
.emittsorfedehteblliwgnittessiht,emitno
40demit.feDxaM
pu-tratsgnirudsnituctsorfedfotnemecalpsidemiT
rosecnailppanoitaregirferlarevesevahuoyfi,tnavelerylnosinoitcnufehT
oslasinoitcnufsihT.decalpsidebottsorfedehtekildluowuoyerehwspuorg
.)30d(tratslavretnihtiwtsorfeddetcelesevahuoyfitnavelerylno
yrevehtroftub,setunimforebmuntesehtybtsorfedehtsyalednoitcnufehT
.desigreneneebsahrellortnocehtnehwtiseodylnotitsorfedtsrif
50d.ggatsemiT
emitffo-pirD
litnudnatsorfedafodneehtmorfespaleotsitahtemitehttesuoyereH
osserpmocehtffognippirdsiretawnehwemitehT(.demuserebotsir
.)rotaropave
60demitffOpirD
Ftsorfedretfayaledtratsna
detratssirosserpmocehtnehwmorfespaleotsitahtemitehttesuoyereH
ehterehwemitehT(.noitarepoemuseryamnafehtlitnudnatsorfedaretfa
.)rotaropaveehtot”dnuob“siretaw
70d.leDtratSnaF
erutarepmettratsnaF
nafdeyaleD“rednudenoitnemnahtreilraeelttiladetratseboslayamnafehT
uoyereH.eulavelbissimrepasretsigerrosnestsorfedehtfi”tsorfedretfatrats
.tratsyamnafehtnehwrofeulavehttesnac
80d.pmeTtratSnaF
tsorfedgnirudnitucnaF
.tsorfedgnirudetarepootsinafehtrehtehwtesuoyereH
tnavelertonera80ddna70dnisgnitteseht,detcelessinoitcnufNOehtfI
90d.feDgniruDnaF
rosnestsorfeD
ebotsirosnestsorfedehtrehtehwtesuoyereH5S,4Sgniogtonsierehtfiro
.llatarosnestsorfedaebot
S(4S:0
tuo
)
:1S(5S
fed
)
.emitnodesabsipotstsorfeD.rosnestsorfedoN:2
01drosneSpotSfeD
purewoptatsorfeD
sirewopnehwtsorfedahtiwtratsotsirellortnocehtrehtehwtesuoyereH
noitcnufehT.eruliafrewoparetfaropu-tratsgnirudrellortnocehtotdeilppus
rewoptneuqerfhtiwskrowtenkaewnodemrofrepeblliwtsorfedtahtserusne
.seruliaf
31dpUrewoPtA.feD
trats.feD
tsorfedlaunamatratsnacuoyereH
.feDretfAdloH
sirellortnocehtnehwNOswohS
.tsorfeddetanidroochtiwgnitarepo
Loading...