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Installation Guide

Temperature controller for walk-in coolers

and freezers, Type 

AK-RC 204B 

and 

AK-RC 205C

© Danfoss | Climate Solutions | 2022.08

AN41473467835501-000102 | 1

080R9293

AN41473467835501-000102

Warnings

•  Using the unit without observing the manufacturer's instructions may alter the appliance's safety requirements. Only probes 

supplied by Danfoss should be used for the unit to operate correctly.

•  From -40 – +20 °C, if the NTC probe is extended to 1000 m with at least 0.5 mm

2

 cable, the maximum deviation will be 0.25 °C

•  It should be installed in a place protected from vibrations, water and corrosive gases, where the ambient temperature does not 

exceed the value indicated in the technical data.

•  For the reading to be correct, the probe should be used in a place without heat influences apart from the temperature you want to 

measure or control.

•  IP65 protection degree is only valid with the protection cover closed.
•  IP65 protection degree is only valid if the cables enter the device using a tube for electric condu gland with IP65 or above. 

The size of the glands should be suitable for the diameter of the tube used.

•  Do not spray the unit directly with high-pressure hoses, as this could cause damage.

IMPORTANT:

• 

 

Before starting the installation, you must take the advice of local regulations in force.

•   The AUXILIARY relays are programmable, and their operation depends on the configuration.
•   The function of the digital inputs depends on the configuration.
•   The recommended currents and powers are the maximum working currents and powers.

EN 

:  Temperature controller for walk-in coolers and freezers, type AK-RC 204B and AK-RC 205C ......................................................................................................1

ES 

:  Controlador de temperatura para cuartos fríos y congeladores, tipo AK-RC 204B y AK-RC 205C .............................................................................................9

FR : 

Régulateur de température pour chambres froides et congélateurs, type AK-RC 204B et AK-RC 205C ............................................................................... 17

DE : 

Temperaturregler für begehbare Kühl- und Gefrierschränke, typ AK-RC 204B und AK-RC 205C ............................................................................................ 25

PT-BR : Controlador de temperatura para câmaras frigoríficas e congeladores, tipo AK-RC 204B e AK-RC 205C ............................................................................ 33

Wiring

  Always disconnect the power supply to do the wiring.

 

The probes and their cables should 

NEVER

 be installed in a conduit together with power, control or power supply cables.

For disconnection, the power supply circuit must be equipped with a switch of at least 2 A, 230 V, located near the device. The power 

supply cable will be H05VV-F or NYM 1x16/3. The section to be used will depend on the local standard in force, but must never be less 

than 2.5 mm

2

.

Cables for relay or contactor outputs should have a section of 2.5 mm

2

, allow working temperatures equal to or over 70 °C and be 

installed with as few bends as possible.
The 120/230 V~ wiring must be kept clear of any other external element.

The wiring to be done depends on the type of installation. Use the appropriate diagram based on the option selected in the 

wizard. Check the available options on the diagrams included in the controller's packaging.

Wizard refers to a built in tool to guide the user through the set up process.

Maintenance

•  Clean the surface of the unit with a soft cloth, water and soap.
•  Do not use abrasive detergents, petrol, alcohol or solvents, as this might damage the unit.

ENGLISH

Summary of Contents for Optyma AK-RC 204B

Page 1: ...rs are the maximum working currents and powers EN Temperature controller for walk in coolers and freezers type AK RC 204B and AK RC 205C 1 ES Controlador de temperatura para cuartos fr os y congelador...

Page 2: ...g into consideration temporary modifications by other parameters C10 or C12 When an alarm is underway pressing once mutes the acoustic alarm Pressing for 3 seconds accesses the Set Point setting Indic...

Page 3: ...g keys in sequence one after the other SET Warning If the pump down function is active a certain amount of time may elapse between starting the stand by function and the controller stopping Note If op...

Page 4: ...ressor 0 Minimum time of compressor in OFF 1 Minimum time of compressor in OFF and in ON in each cycle 0 0 1 C5 Protection delay time Value of the option selected in parameter C4 Min 0 0 120 C6 COOL r...

Page 5: ...s when the compressor shuts down 0 No 1 Yes 0 0 1 F3 Status of the fans during the defrost 0 Shut down 1 Running 0 0 1 F4 Delay of start up after defrost If F3 0 It will only actuate if it is higher t...

Page 6: ...I11 Polarity of the digital input 1 0 Activates on closing contact 1 Activates on opening contact 0 1 I20 Configuration of digital input 2 0 Deactivated 1 Door contact 2 External alarm 3 Severe exter...

Page 7: ...value programmed in A1 has been reached AL Minimum temperature alarm in control probe The temperature value programmed in A2 has been reached AE External alarm activated by digital input AES Severe e...

Page 8: ...13 A 250 V Relay AUX 2 SPDT 16 A NO EN60730 1 12 9 A 250 V NC EN60730 1 10 8 A 250 V No of relay operations EN60730 1 100 000 operations Probe temperature range 50 0 99 9 C Resolution setting and dif...

Page 9: ...de la configuraci n La funci n de las entradas digitales depende de la configuraci n Las intensidades y potencias indicadas son las m ximas de trabajo admitidas Conexionado Desconectar siempre la ali...

Page 10: ...es temporales por otros par metros C10 C12 Con una alarma en curso una pulsaci n corta silencia la alarma ac stica Pulsando durante 3 segundos accede al ajuste del Set Point Indicadores Fijo Modo Stan...

Page 11: ...ntes teclas una detr s de otra no a la vez SET Advertencia Si la funci n recogida de gas est activa puede transcurrir un cierto tiempo desde que iniciamos la funci n Stand by hasta que el controlador...

Page 12: ...etardo para protecci n del compresor 0 Tiempo m nimo del compresor en OFF 1 Tiempo m nimo del compresor en OFF y en ON en cada ciclo 0 0 1 C5 Tiempo de retardo de la protecci n Valor de la opci n eleg...

Page 13: ...st n parados C F 0 1 2 0 20 0 F2 Parar ventiladores al parar compresor 0 No 1 Si 0 0 1 F3 Estado de los ventiladores durante el desescarche 0 Parados 1 En marcha 0 0 1 F4 Retardo de arranque despu s d...

Page 14: ...baja 8 Stand by remoto 0 8 I11 Polaridad de la entrada digital 1 0 Activa al cerrar contacto 1 Activa al abrir contacto 0 1 I20 Configuraci n de la entrada 2 0 Desactivada 1 Contacto puerta 2 Alarma...

Page 15: ...nda de control Se ha alcanzado el valor de temperatura programado en A1 AL Alarma de temperatura m nima en sonda de control Se ha alcanzado el valor de temperatura programado en A2 AE Alarma externa a...

Page 16: ...50 V Rel AUX 2 SPDT 16 A NO EN60730 1 12 9 A 250 V NC EN60730 1 10 8 A 250 V N de operaciones de los rel s EN60730 1 100 000 operaciones Rango de temperatura de la sonda 50 0 a 99 9 C Resoluci n ajust...

Page 17: ...vis des r glementations locales en vigueur Les relais AUXILIAIRES sont programmables leur fonctionnement d pend de la configuration La fonction des entr es num riques d pend de la configuration Les in...

Page 18: ...nt compte des modifications temporaires par d autres param tres C10 ou C12 Avec une alarme en cours un appui court coupe le son de l alarme sonore Appuyez pendant 3 secondes pour acc der au r glage du...

Page 19: ...on toutes en m me temps et SET Avertissement Si la fonction Pump Down est active un certain temps peut s couler entre le moment du d marrage de la fonction Stand by jusqu ce que le contr leur s arr te...

Page 20: ...pour la protection du compresseur 0 Temps minimum du compresseur sur OFF 1 Temps minimum du compresseur sur OFF et ON au cours de chaque cycle 0 0 1 C5 Temps de retard de la protection Valeur de l opt...

Page 21: ...0 F2 Arr ter les ventilateurs lors de l arr t de compresseur 0 Non 1 Qui 0 0 1 F3 tat des ventilateurs lors du d givrage 0 Arr t s 1 En marche 0 0 1 F4 Retard de d marrage apr s le d givrage si F3 0 N...

Page 22: ...I11 Polarit de l entr e num rique 1 0 Active la fermeture du contact 1 Active l ouverture du contact 0 1 I20 Configuration de l entr e num rique 2 0 D sactiv e 1 Contact porte 2 Alarma externe 3 Al ex...

Page 23: ...sonde de contr le La valeur de temp rature programm e en A1 a t atteinte AL Alarme de temp rature minimum dans la sonde de contr le La valeur de temp rature programm e en A2 a t atteinte AE Alarme ex...

Page 24: ...15 13 A 250 V Relais AUX 2 SPDT 16 A NO EN60730 1 12 9 A 250 V NC EN60730 1 10 8 A 250 V Nbre d op rations des relais EN60730 1 100 000 op rations Plage de temp rature de la sonde 50 0 99 9 C R solut...

Page 25: ...programmierbar ihre Funktion ist jeweils von der Konfiguration abh ngig Die Funktion der Digitaleing nge h ngt von der Konfiguration ab Bei den Stromst rke und Leistungsangaben handelt es sich um die...

Page 26: ...gezeigt wobei die vor bergehenden nderungen durch andere Parameter C10 oder C12 ber cksichtigt werden Bei aktiviertem Alarm wird durch kurzes Dr cken das akustische Alarmsignal ausgeschaltet Durch 3 S...

Page 27: ...nander dr cken Warnung Wenn die Funktion Pump Down aktiv ist kann es ab dem Start der Stand by Funktion bis zum Stopp des Reglers einige Zeit dauern Notiz Bei Wahl der Optionen 2 5 7 9 oder 12 sichers...

Page 28: ...0 min Zeit des Kompressors im OFF Zustand 1 min Zeit des Kompressors im OFF und ON Zustand in jedem Zyklus 0 0 1 C5 Verz gerungszeit f r den Schutz Wert der in Parameter C4 gew hlten Option Min 0 0 1...

Page 29: ...0 nein 1 ja 0 0 1 F3 Status der L fter w hrend der Abtauung 0 abgeschaltet 1 in Betrieb 0 0 1 F4 L fter Anlaufverz gerung nach Abtauung wenn F3 0 Nur wirksam wenn gr er als d9 Min 0 2 99 EP Zur ck zu...

Page 30: ...zugriff 0 8 I11 Polarit t des Digitaleingangs 1 0 aktiviert bei Kontaktschlie ung 1 aktiviert bei Kontakt ffnung 0 1 I20 Konfiguration des Eingangs 2 0 deaktiviert 1 T rkontakt 2 externer Alarm 3 schw...

Page 31: ...ierte Temperaturwert wurde erreicht AL Alarm f r min Temperatur an Raumf hler Der in A2 programmierte Temperaturwert wurde erreicht AE Externer Alarm aktiviert per Digitaleingang AES Schwerwiegender e...

Page 32: ...250 V Relais AUX 2 SPDT 16 A NO EN60730 1 12 9 A 250 V NC EN60730 1 10 8 A 250 V Anzahl der Relaisoperationen EN60730 1 100 000 operationen Temperaturbereich des F hlers 50 0 bis 99 9 C Aufl sung Ein...

Page 33: ...uir o conselho dos regulamentos locais em vigor Os rel s AUXILIARES s o program veis o seu funcionamento depende da configura o A fun o das entradas digitais depende da configura o As intensidades e p...

Page 34: ...metros C10 C12 Com um alarme em curso um breve toque silencia o alarme ac stico Premindo durante 3 segundos acede ao ajuste do Set Point Indicadores Fixo Modo Stand By ativo a regula o est parada Int...

Page 35: ...ma a seguir outra e n o uma de cada vez SET Aviso Se a fun o de pump down estiver ativada pode decorrer algum tempo desde que a fun o Stand by inicia at o controlador parar Observa o Caso sejam escolh...

Page 36: ...2 C4 Tipo de atraso para a prote o do compressor 0 Tempo m nimo do compressor em OFF 1 Tempo m nimo do compressor em OFF e em ON em cada ciclo 0 0 1 C5 Tempo de atraso da prote o valor da op o escolhi...

Page 37: ...0 F2 Parar ventiladores ao parar compressor 0 N o 1 Sim 0 0 1 F3 Estado dos ventiladores durante o degelo 0 Parados 1 Em funcionamento 0 0 1 F4 Atraso de arranque depois do degelo Se F3 0 S atua se f...

Page 38: ...baixa 8 Stand by remoto 0 8 I11 Polaridade da entrada digital 1 0 Ativa ao fechar contacto 1 Ativa ao abrir contacto 0 1 I20 Configura o da entrada 2 0 Desativada 1 Contacto porta 2 Alarme externo 3...

Page 39: ...sonda de controlo Foi alcan ado o valor de temperatura programado em A1 AL Alarme de temperatura m nima na sonda de controlo Foi alcan ado o valor de temperatura programado em A2 AE Alarme externo at...

Page 40: ...25 C 0 4 C Temperatura ambiente de trabalho AK RC 204B 10 a 50 C AK RC 205C 10 a 45 C Temperatura ambiente de armazenamento 30 a 60 C Grau de prote o IP 65 Categoria de instala o II s EN 60730 1 Grau...

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