ADAP-KOOL® Refrigeration control systems Contents Introduction .......................................................................................4 Compressor- and condenser controls ..............................................6 Introduction ............................................................................................................... 6 Capacity control ........................................................................................................ 8 EKC 331T ................
Water chiller control ........................................................................................... 122 EKC 312....................................................... 122 EKC 315A.................................................... 126 EKC 316A.................................................... 130 Liquid level control ............................................................................................. 134 EKC 347.......................................................
System units ...................................................................................178 System unit 1 ........................................................................................................ 178 AK-SM 720 ................................................. 179 AK-PI 200.................................................... 179 Web-based operation ........................... 180 AK-ST 500 .................................................. 180 EM 100 ...................................
Introduction Danfoss has s a comprehensive offer to the food retail industry that consists of electronic controls, compressors, condensing units, line components and services which provide optimisation control of refrigeration system and energy savings with HACCP compliance at the same time.
Three Level of Control ADAP-KOOL® ion trol & Optimisat Supervisory Con ntrol Co rvisory Supe m Alar rol & ont al C Loc For reliable control and operation For improved monitoring and contol of refrigeration performance with remote communication and alarm Supervisory control and optimisation with advanced automatic.
Compressor- and condenser controls Introduction Compressor and condensers capacity controls are used from compact systems with just two hermetic compressors up to large power-packs with multiple semi-hermetic compressors equipped with variable speed drives and unloaders.
Brief outline about some of the controls Controller series AKC 25H_ is a complete control unit for capacity regulation of compressors and condensers in small refrigerating systems ensuring precise and stable refrigeration plant suction and condensing pressure regulation. Being a part of ADAP-KOOL® Refrigeration control systems, the compressor control ensures optimum monitoring and alarm procedures and the possibility of different monitoring functions to optimise refrigeration plant operation.
Capacity control EKC 331T Application The controller is used for capacity regulation of compressors or condensers in small refrigerating systems. Regulation can be carried out with up to four identical capacity steps. Advantages • Patented neutral zone regulation • Sequential or cyclic operation Functions • Regulation Regulation with up to four relay outputs can be carried out. Regulation takes place with a set reference which is compared to a signal from a pressure transmitter or a temperature sensor.
Sequential The relays are here cut in in sequence – first relay number 1, then 2, etc. Cutout takes place in the opposite sequence, i.e. the last cut-in relay will be cut out first. Cyclic The relays are coupled here so that the operating time of the individual relays will become equalised. At each cutin the regulation scans the individual relays’ hours, cutting in the relay with least time on it. At each cutout a similar thing happens. Here the relay is cut out that has most hours on the hours.
Menu survey SW: 1.1x Parame- Min. ter Function Factory setting Max. Normal display Shows the signal from the temperature sensor/ pressure transmitter - °C Reference Set the regulation’s set point - -60 °C 170 °C 3 Neutral zone r01 0.1 K 20 K Max. limitation of set point setting r02 -60 °C 170 °C 50 4.0 Min. limitation of set point setting r03 -60 °C 50 °C -60 Correction of signat from the sensor r04 -20 K 20 K 0.
Data Supply voltage 230 V a.c. +/-15% 50/60 Hz, 5 VA Pressure transmitter*) with 4-20 mA or temperature sensor Pt 1000 ohm or temperature sensor PTC 1000 ohm or voltage signal (0 - 5 V, 0 - 10 V or 5 - 10 V) Input signal Digital input to external contact function AC-1: 4 A (ohmic) AC-15: 3 A (inductive) AC-1: 4 A (ohmic) AC-15: 1 A (inductive) Relay output 4 pcs. SPST Alarmrelay 1 pcs.
AK-PC 530 Application The controller is used for capacity regulation of compressors or condensers in small refrigerating systems. Numbers of compressors and condensers can be connected, as required. There are eight outputs and more can be added via an external relay module.
Capacity regulation The cut-in capacity is controlled by signals from the connected pressure transmitter/temperature sensor and the set reference. Outside the reference a neutral zone is set where the capacity will neither be cut in nor out. Outside the neutral zone (in the hatched areas named +zone and -zone) the capacity will be cut in or out if the regulation registers a change of pressure “away” from the neutral zone. Cutin and cutout will take place with the set time delays.
Menu survey Sequence 1. o61 must be set as the first parameter. This parameter determines which of the four operating interfaces (application mode) are activated. This must be set via the display keys. It cannot be set via data communication. (Active functions are shown below in shaded fields.) 2.
Regulation parameter for - Zone c14 0.1 min. 60 min 1.0 Regulation parameter for - - Zone c15 0.02 min. 20 min 0.5 Definition of compressor connections. Following "c17" to "c28" is another way to define compressorw than with "c16"..
P0 pressure transmitter’s working range - min. value P0 pressure transmitter’s working range - max. value Use of DI4-input 0=not used. 1=P0 displacement. 2=alarm function. Alarm="A31" Operating hours of relay 1 (value time 1000) Operating hours of relay 2 (value time 1000) Operating hours of relay 3 (value time 1000 Operating hours of relay 4 (value time 1000) Setting of refrigerant 1=R12. 2=R22. 3=R134a. 4=R502. 5=R717. 6=R13. 7=R13b1. 8=R23. 9=R500. 10=R503. 11=R114. 12=R142b. 13=User defined. 14=R32.
Data Supply voltage Input signal Montage 24 V a.c. +/-15% 50/60 Hz, 5 VA 2 pcs. Pressure transmitters type AKS 32R (temperature sensor in brine systems) 3 pcs. temperature sensor input for PT 1000 ohm/0°C or PTC 1000 ohm/25°C 1 pcs. for Start/stop of regulation Digitale input from contact function. 8 pcs. for monitoring of safety circuits 3 pcs. for alarm function 2 pcs. for alarm function or for displacement of references Relay output for 8 pcs. SPST capacity regulation "AKD start/stop" relay 1 pcs.
AK-PC 840 Application AK-PC 840 is a complete regulating unit for capacity control of compressors and condensers in commercial refrigeration. In addition to capacity control the controller can give signals to other controllers about the operating condition, e.g. forced closing of expansion valves, alarm signals and alarm messages.
Data Supply voltage 24 V a.c. +/- 20% Power consumption AK-PC 840 12 VA Analoge indgange Pt 1000 ohm /0°C Dissolution: 0.1°C Accuracy: +/- 0.5° Pressure transmitter Dissolution 1 mV type AKS 32R / Accuracy +/- 10 mV AKS 32 (1-5 V) Max.
AK-PC 730 Application AK-PC 730 is particularly well-suited to capacity control of cascade or booster systems. By using two controllers, a complete capacity control of both circuits is achieved.
Example The example below uses 2 no. AK-PC 730 to control a complete cascade system with R404A for refrigeration and e.g. CO2 for freezing. High-pressure circuit Consists of 3 compressors, of which the first is speed-controlled via a frequency converter type AKD. The condenser consists of 4 fans which are all speed-controlled via a frequency converter type AKD. The compressor capacity is adjusted according to the pressure measurement Pctrl which is located in the low-pressure circuit.
AKC 25H1 AKC 25H1 is a capacity controller for compressors and condensors. AKC 25H1 controls up to nine stages distributed between the compressor and/or condensing stage. Description • Possibility of connection to both main and relief stages of identical sizes. • Neutral zone adjustment of suction pressure and condensing pressure.
AKC 25H3 The control has the same functions as AKC 25H1, but can additionally be used to control two independent refrigeration circuits. Description • Neutral zone adjustment of suction pressure and condensing pressure. • PI regulation of condensing pressure.
AKC 25H5 The controller has the same functions as the AKC 25H1 but also offers the possibility of controlling the different stage intervals and speed adjustment. This ensures even better capacity adaptation to the actual load. Description • Possibility of connection to both main and relief stages of different sizes. • PI regulation of suction and condensing pressure. • Possibility of connection to VLT frequency converter for the speed regulation of a compressor stage or condensing stage.
Water chiller control AKC 25H7 AKC 25H7 is a complete brine cooler control unit that has been developed for indirect refrigerating systems in supermarkets. The controller’s main function is to control compressors and condensers in such a way that the required brine temperature is maintained on the cold and warm side of the compressor system.
AK-CH 650 Application AK-CH 650 is for capacity control of chillers. The controller can control compressors, fans, pumps, defrosting sequences and start/stop injection in a heat exchanger. (If complete dry refrigeration control is required including a threeway valve for the condenser, AK-PC 420 is recommended.
Example Compressors Compressor capacity is controlled by charge temperature S4 and by suction pressure P0 as frost protection. Three compressors are used with speed control on the first compressor. Pc is used for high pressure monitoring. Pumps Two twin pumps controlled by time-based rotation. The pumps are monitored by a pressure difference pressure switch. If pump errors occur, automatic switch to the other pump takes place.
Dry cooler AK-PC 420 Application AK-PC 420 is a complete capacity control of a dry cooler including fans, three-way valve, pumps and heat recovery.
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Liquid injection in the suction line EKC 319A Application The controller limits the pressure gas temperature in compressors by opening up for liquid injection in the suction line. Control A temperature sensor will register the discharge gas temperature. If the temperature reaches the set temperature value, opening of the valve will be commenced. A PI regulation will adapt the opening degree of the valve so that the temperature will be limited. Temperature sensor Type AKS 21 can be used.
Menu survey SW = 1.1x Function Para- Min. meter Max. Fac.
Speed control of compressor and condenser Introduction AKD-Variable Speed Drives are engineered to optimize performance in your refrigeration system and as a part of ADAP-KOOL® system are dedicated to the following refrigeration applications: • Pack or Compressor Control • Pumps • HVAC (Centrifugal fans and pumps) • Condensers AKD-Variable Speed Drives offer a variety of benefits in the refrigeration systems: Energy savings The continuous variable speed control by AKD makes intelligent capacity control poss
AKD 2800 AKD 2800 is a frequency converter for use in refrigeration system in book form design and with local control panel. It has an IP 20 enclosure and is available in versions with or without RFI filter. (Please note that Danfoss recommend that for Food Retail applications the drive is always purchased complete with the RFI filter.) A LON module for data communication with ADAP-KOOL® is available as accessory - see section “AKD Variable Speed Drives, accessories and spare parts".
AKD 5000 AKD 5000 is a frequency converter for use in refrigeration systems in compact cabinet design, with a local control panel. It is available in versions with IP 20 or IP 54 enclosure and is available in versions with RFI filter. Variable Speed Drives, 220-240 V AKD 5000 Series 220-240 V is available from 0.75 kW to 75 kW. ADAP-KOOL® LON module For AKD 5000 versions supplied without LON module an optional module is available - see section “AKD Variable Speed Drives, accessories and spare parts”.
Accessories for AKD Type Terminal cover Code No.
RGE RGE, Variable Speed Control, is used for fan speed control, and is available in single and three phase versions. RGE is a simple and efficient all-in-one pressure sensor and fan speed control, featuring a reliable sensing mechanism using bellows. RGE is easy to install and set up, and can be used for a large number of refrigerants: R 22, R 407C, R 404A, R 134a and R 410A. RGE is CE/EMC approved. Type Code No.
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Evaporator controls and thermostatic expansion valves Introduction Thermostatic expansion valves are used in traditional refrigeration systems and refrigeration appliances with limited possibility of energy savings where injection of refrigerant liquid into evaporator is controlled by the refrigerant superheat. Therefore, thermostatic expansion valves are especially suitable for liquid injection in ”dry“ evaporators where the superheat at the evaporator outlet is proportional to the evaporator load.
ADAP-KOOL® evaporator controllers offer three levels of control for different application demands.
Temperature control EKC 100 Introduction The controller is used for temperature control of refrigeration plant. Operation, setting and programming are optimised and simplified as much as possible. The controller is designed so that temperature control and defrost control can be made via pump down or start/stop of the compressor. Menu survey SW = 1.1X Parameter Function Normal operation Temperature (set point) Thermostat Differential Display adjust Compressor Min. ON-time Min.
Technical data Supply voltage Sensor connection 230 V a.c. +10/-15 %. 0.5 VA NTC 5000 ohm/25°C. e.g. type EKS 211 Measuring range Accuracy Controller NTC sensor Display Light-emitting diode (LED) Electrical connection cable Relay -60 to +50°C ±1 K below -0°C ±0.5 K between -0 to +10°C ±1 K above +10°C ±0.5 K at 0°C LED, 2 digits Indicates cut-in relay Max.1,5 mm2 multi-core cable on supply and relays. Max. 1 mm2 on sensors Terminals are mounted on the circuit board CE UL Rated voltage 250 V 240 V a.
EKC 102 Application • The controller is used for temperature control refrigeration appliances and cold room • Defrost control • For front panel mounting Advantages • Integrated refrigeration-technical functions • Defrost on demand in 1:1 systems • Buttons and seal imbedded in the front • IP 65 enclosure from the front panel • Can control two compressors • Digital input for either: - Door alarm - Defrost start - Start/stop of regulation - Night operation - Change-over between two temperature reference - Cas
EKC 102A Controller with one relay output and one temperature sensor. Temperature control at start/stop of compressor. Natural defrost at stop of compressor. Instead of the compressor a solenoid valve may of course be connected in the liquid line. Heating function The controller can also be used as a simple on/off thermostat for heating applications. EKC 102B Controller with two relay outputs, extra temperature sensor and digital input.
Menu survey EKC 102A SW = 1.1x Parameters Function Normal operation Temperature (set point) Thermostat Differential Max. limitation of setpoint setting Min. limitation of setpoint setting Adjustment of temperature indication Temperature unit (°C/°F) Correction of the signal from Sair Manual service (-1), stop regulation (0), start regulation (1) Compressor Min. ON-time Min.
Menu survey EKC 102B and EKC 102C SW = 1.1X Parameters Function Normal operation Temperature (set point) Thermostat Differential Max. limitation of setpoint setting Min.
EKC 102D SW = 1.2X Parameters Function Normal operation Temperature (set point) Thermostat Differential Max. limitation of setpoint setting Min.
Connections EKC 102A EKC 102B (115 V) EKC 102C (115 V) or (115 V) or (115 V) or (115 V) (115 V) EKC 102D (115 V) Power supply 230 V a.c. or 115 V a.c. See controller. Sensors Sair is thermostat sensors. Saux is an extra sensor for measuring e.g. the condenser temperature. S5 is a defrost sensor and is used if defrost has to be stopped based on temperature. It may however also be used as product sensor or condenser sensor. Digital On/Off signals A cut-in input will activate a function.
Data Supply voltage Sensors Accuracy Display Digital inputs Electrical connection cable Relays* Environments Enclosure Approvals 230 V a.c.(115 V) +10/-15 %. 1.5 VA Pt 1000 or PTC (1000 ohm/25°C) or NTC-M2020 (5000 ohm/25°C) Measuring range -60 to +99°C ±1 K below -35°C Controller ±0.5 K between -35 to +25°C ±1 K above +25°C ±0.3 K at 0°C Pt 1000 sensor ±0.005 K per grad LED, 3 digits Signal from contact functions Requirements to contacts: Gold plating Cable length must be max.
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Refrigeration appliance controls EKC 301 Application The controller is a simple thermostat regulator in which some refrigeration-technical functions have been integrated so that it can replace a link-up of a group of thermostats and timers.
Controller application overview Function 1 Application no. 2 3 Room temperature control by pump down or compressor start/stop Example: Controller for application number 3 satisfies requirement for 4 • room temperature control (thermostat) by pump down or compressor start/stop.
Data Supply voltage Power consumption Sensors Controller sensor system 230 V +10/-15%, 50/60 Hz 5.0 VA Pt 1000 ohm or PTC (R25 = 1000 ohm) Measuring -60 to +50°C range ±0.5°C for sensor temperature -35 to +25°C; ±1°C for sensor temperature -60 to -35°C Accuracy LED, three digits (0.1°C read-off accuracy in measuring range) Display External alarm contact Electrical connection cable Relays Standard SPST contact (door alarm) max. 2.5 mm2 multi-core cable Weight: 300 g Controller relay SPST NO, Imax.
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Ordering EKC 301, controllers for DIN-rail mounting Application no. Controller Without alarm relay With alarm relay 1 084B7513 084B7516 2 084B7514 084B7517 3 084B7515 084B7518 4 084B7515 084B7518 Accessories Plug-in modules Description Type Code No. Real time clock EKA 172 084B7069 Bus communication card RS 485 EKA 175 084B7093 The installation of data communications must comply with the requirements described in literature sheet no.
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EKC 202 Application • The controller is used for temperature control refrigeration appliances and cold room in supermarkets • Control of defrost, fans, alarm and light • For front panel mounting Advantages • Integrated refrigeration-technical functions • Defrost on demand in 1:1 systems • Buttons and seal imbedded in the front • IP 65 enclosure from the front panel • Digital input for either: - Door contact function with alarm - Defrost start - Start/stop of regulation - Night operation - Change-over betwe
EKC 202A Controller with two relay outputs, two temperature sensors and digital input. Temperature control at start/stop of compressor/solenoid valve Defrost sensor Electrical defrost/gas defrost Alarm function If an alarm function is required, relay number two may be used for it. Defrost is performed here with circulation of the air as the fans are operating continuously. EKC 202B Controller with three relay outputs, two temperature sensors and digital input.
Menu survey SW = 1.2x Parameters Function Codes Controller EKC EKC EKC 202A 202B 202C Normal operation Temperature (set point) --Thermostat Differential r01 Max. limitation of setpoint setting r02 Min.
Service Temperature measured with S5 sensor Status on DI1 input. on/1=closed Status on night operation (on or off ) 1=closed Read the present regulation reference Status on relay for cooling (Can be controlled manually, but only when r12=-1) Status on relay for fans (Can be controlled manually, but only when r12=-1) Status on relay for defrost. (Can be controlled manually, but only when r12=-1) Temperature measured with Sair sensor Status on relay 4 (alarm, defrost, light).
Connections EKC 202A EKC 202B EKC 202C or or Power supply 230 V a.c. Sensors Sair is thermostat sensors. S5 is a defrost sensor and is used if defrost has to be stopped based on temperature. It may however also be used as product sensor or condenser sensor. Digital On/Off signal A cut-in input will activate a function. The possible functions are described in menu o02. Relays The general connections are: Refrigeration. The contact will cut in when the controller demands refrigeration Defrost. Fan.
Data Supply voltage Sensors Accuracy Display Digital inputs Electrical connection cable Relays* Environments Enclosure 230 V a.c. +10/-15 %. 1.5 VA Pt 1000 or PTC (1000 ohm/25°C) or NTC-M2020 (5000 ohm/25°C) Measuring range -60 to +99°C ±1 K below -35°C Controller ±0,5 K between -35 to +25°C ±1 K above +25°C ±0.3 K at 0°C Pt 1000 sensor ±0.005 K per grad LED, 3 digits Signal from contact functions Requirements to contacts: Gold plating Cable length must be max.
EKC 202D Application • The controller is used for temperature control refrigeration appliances in supermarkets • With many predefined applications one unit will offer you several options.
Sensors Up to two thermostat sensors can be connected to the controller. The relevant application determines how. A sensor in the air before the evaporator: This connection is primarily used when control is based on area. A sensor in the air after the evaporator: This connection is primarily used when refrigeration is controlled and there is a risk of a too low temperature near the products.
Application Here is a survey of the controller’s field of application. A setting will define the relay outputs so that the controller’s interface will be targetted to the chosen application. On next page you can see the relevant settings for the respective wiring diagrams. S3 and S4 are temperature sensors. The application will determine whether either one or the other or both sensors are to be used. S3 is placed in the air flow before the evaporator. S4 after the evaporator.
Menu survey SW = 2.0x Parameters Function Normal operation Temperature (set point) Thermostat Differential Max. limitation of setpoint setting Min.
Input signal on DI2. Function: (0=not used. 1=status on DI2. 2=door function with alarm when open. 3=door alarm when open. 4=defrost start (pulse-pressure). 5=ext. main switch 6=night operation 7=change reference (activate r40). 8=alarm function when closed. 9=alarm function when open. 10=case cleaning (pulse pressure). 11=forced cooling at hot gas defrost.). 12=coordinaded defrost) Configuration of light function (relay 4) 1=ON during night operation. 2=ON/OFF via data communication.
Connections Relays The general uses are mentioned here. DO1: Refrigeration. The relay will cut in when the controller demands refrigeration DO2: Defrost. The relay will cut in when defrost is in progress DO3: Fans The relay will cut in when the fans have to operate DO4: For either alarm, rail heat or light Alarm: Cf. diagram.
Data Supply voltage 230 V a.c.(or 115 V version) +10/-15 %. 2.5 VA Pt 1000 or Sensors 3 pcs off PTC (1000 ohm/25°C) or either NTC-M2020 (5000 ohm/25°C) Measuring range -60 to +99°C ±1 K below -35°C Controller ±0.5 K between -35 to +25°C Accuracy ±1 K above +25°C ±0.3 K at 0°C Pt 1000 sensor ±0.005 K per grad Display LED, 3-digits External display Digital inputs Electrical connection cable EKA 163A Signal from contact functions Requirements to contacts: Gold plating Cable length must be max.
Ordering Type Function Voltage supply EKC 202D Refrigeration controller without data communication but prepared for mounting of one module Code No. 230 V a.c. 084B8536 115 V a.c.
AK-CC 210 Application • The controller is used for temperature control refrigeration appliances in supermarkets • With many predefined applications one unit will offer you many options.
Sensors Up to two thermostat sensors can be connected to the controller. The relevant application determines how. A sensor in the air before the evaporator: This connection is primarily used when control is based on area. A sensor in the air after the evaporator: This connection is primarily used when refrigeration is controlled and there is a risk of a too low temperature near the products.
Application Here is a survey of the controller’s field of application. A setting will define the relay outputs so that the controller’s interface will be targetted to the chosen application. S3 and S4 are temperature sensors. The application will determine whether either one or the other or both sensors are to be used. S3 is placed in the air flow before the evaporator. S4 after the evaporator. A percentage setting will determine according to what the control is to be based.
5 Refrigeration control with two compressors This group of applications can be used if the controller is to cut two compressors in and out. The functions can be compared with wiring diagrams 1 to 3, but instead of controlling fans the relay is here used for compressor 2. The two compressors must be of the same size. When the controller demands refrigeration it will first cut in the compressor with the shortest operating time. After the time delay the second compressor will be cut in.
Menu survey SW = 2.0x Parameters Function Normal operation Temperature (set point) Thermostat Differential Max. limitation of setpoint setting Min.
1 Miscellaneous Delay of output signals after start-up Input signal on DI1. Function: 0=not used. 1=status on DI1. 2=door function with alarm when open. 3=door alarm when open. 4=defrost start (pulse-pressure). 5=ext.main switch. 6=night operation 7=change reference (activate r40). 8=alarm function when closed. 9=alarm function when open. 10=case cleaning (pulse pressure). 11=forced cooling at hot gas defrost.
Connections Power supply 230 V a.c. Sensors S3 and S4 are thermostat sensors. A setting determines whether S3 or S4 or both of them are to be used. S5 is a defrost sensor and is used if defrost has to be stopped based on temperature. AK-CC 210 Digital On/Off signals A cut-in input will activate a function. The possible functions are described in menus o02 and o37. Relays The general uses are mentioned here. DO1: Refrigeration. The relay will cut in when the controller demands refrigeration DO2: Defrost.
Coordinated defrost via data communication Data Supply voltage 230 V a.c. +10/-15 %. 2.5 VA Pt 1000 or Sensors 3 pcs off PTC (1000 ohm/25°C) or either NTC-M2020 (5000 ohm/25°C) Measuring range -60 to +99°C ±1 K below -35°C Controller ±0.5 K between -35 to +25°C Accuracy ±1 K above +25°C ±0.3 K at 0°C Pt 1000 sensor ±0.
Ordering Type Function AK-CC 210 Refrigeration controller without data communication but prepared for it Data communication module MOD-BUS Data communication module LON RS 485 EKA 178A EKA 179A Code no.
AK-CC 250 This control is a variant of AK-CC 210. It differs on the following points: • Fixed MOD-BUS data communication • No option of connection to external display In addition: • No module with other data communication can be mounted • The menus are the same with the exception of o04, which has been removed. Ordering Connection of data communication AK-CC 250 RK0YG302 © Danfoss Type Function Code No.
AK-CC 450 Application Complete refrigeration appliance control with great flexibility to adapt to all types of refrigeration appliances and cold storage rooms. • For cooling with brine • For use with a thermostatic expansion valve.
Applications Here is an overview of the controller’s usage options. A setting will configure input and outputs so that the controller’s operation interface is directed at the selected application. Application 1-5 These uses are applied to standard appliances or cold storage rooms with one valve, one evaporator and one refrigeration section. The sensors are used according to standard principles. The output functions change depending on the selected application.
Media temperature control EKC 361 Application The controller and valve can be used where there are stringent requirements to accurate temperature control in connection with refrigeration. E.g.: • Cold room for fruits and food products • Refrigerating systems • Work premises in the food industry • Process cooling of liquids Advantages • The temperature is kept within an accuracy of ±0.
Very accurate temperature control With this system where controller, pilot valve and main valve have been adapted for optimum use in the refrigerating plant, the refrigerated products may be stored with temperature fluctuations of less than ±0.25°C. High air humidity As the evaporating temperature is constantly adapted to the refrigeration needs and will always be as high as possible with a very small temperature fluctuation, the relative air humidity in the room will be kept at a maximum.
Menu survey SW =1.5x Function ParaMin. meter Normal display Shows the temperature at the selected sensor At ICM valve OD also can be selected Reference - Set the required room temperature - -70°C 160°C 10°C Temperature unit r05 °C °F °C Input signal’s temperature influence r06 -50°C 50°C 0.0 Correction of the signal from Sair r09 -10.0°C 10,0°C 0.0 Correction of the signal from Saux r10 -10.0°C 10,0°C 0.0 Start/stop of refrigeration r12 OFF/0 Max. Data Fac.
Connections Data communication CVQ/ CVMQ/ KVQ Additional information! Manual: RS8AE EKC 361 RK0YG302 © Danfoss 04/2007 85
EKC 368 Application Controller and valve are used where there are high requirements to refrigeration of unpacked food products, e.g.: • Delicatessen appliances • Cold rooms for meat products • Cold rooms for fruits and vegetables • Containers • Air conditioning plant Advantages • Wastage is reduced because the air humidity around the products is kept as high as possible. • The temperature is kept within an accuracy of ±0.
Very accurate temperature control With this system where controller and valve have been adapted for optimum use in the refrigerating plant, the refrigerated products may be stored with temperature fluctuations of less than ±0.5°C. High air humidity As the evaporating temperature is constantly adapted to the refrigeration needs and will always be as high as possible with very small temperature fluctuations, the relative air humidity in the room will be kept at a maximum.
Menu survey Function Data SW =1.6x Fac. Max. setting Para- Min. meter Supply voltage Normal display Shows the temperature at the room sensor - Give the lower button a brief push to see the temperature at the defrost sensor - Power consumption °C °C Input signal Reference Set the required room temperature - -70°C 160°C 10 Temperature unit r05 °C °F °C External contribution to the reference r06 -50 K 50 K 0 Correction of the signal from Sair r09 -10.
Ordering Data communication Type EKC 368 Function Evaporating pressure controller Ordering 084B7079 EKA 172 Realtime clock 084B7069 EKA 175 Data communication module (accessories), (RS 485 module) Data communicationsmodule (accessories), (RS 485 module) with galvanic separation EKA 174 084B7093 084B7124 The installation of data communications must comply with the requirements described in literature sheet no.
Evaporator controls and electrically operated expansion valves Introduction Since the introduction of the AKV pulse-width modulated electronic expansion valve has contributed to energy savings in the supermarket refrigeration systems, and is continuously under development to ensure further efficiency. Investment into intelligent and adaptive controls brings lower energy consumption and also lower running costs of the supermarket refrigeration systems.
ADAP-KOOL® evaporator controllers offer three levels of control for different application demands. Supervisory control & Optimised control with EKC 414A1/514B / AKC 1xx & AK-CC Supervisory control with EKC 301/202/AK-CC450 Local control & alarm with EKC 101, 102 This section Comparison of controls in this section Controls with complete refrigeration appliance management Type Number of evaporators Supply = 230 V a.c. Supply = 24 V a.c.
Refrigeration appliance controls EKC 414A 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.
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.
Menu survey SW: 1.1x Para meter Function Normal display Shows the temperature at the selected sensor Define view in O17 If you wish to see selected defrost stop temperature, give the lower button a brief push (1 sec.) no= stop on temperature not selected Thermostat Min. °C - Fan stop on compressor cut out °C r01 0.1 K 10.0 K 2.0 r02 -49°C 50°C 50.0 r03 -50°C 49°C -50.0 r05 °C °F 0/°C Correction of signal from S4 (Sout) r09 -10.0 K 10.0 K 0.
Continued from previous page Data Para meter Service The following readouts can be performed via the belonging parameter Defrost sensor S5 Sdef u09 Status on DI-input u10 °C Defrost time u11 min. Air temperature S3 (Sin) u12 °C Status on night operation (on or off ) u13 Status on ON-input u14 Status on DO-output u15 Air temperature S4 (Sout) u16 Thermostat temperature u17 °C Thermostat cut-in time u18 min.
EKC 414A1 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. 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.
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.
Menu survey SW: 1.0x Para meter Function Min. Factory settings Max. Normal display Shows the temperature at the selected sensor Define view in O17 If you wish to see selected defrost stop temperature, give the lower button a brief push (1 sec.) no= stop on temperature not selected Thermostat Differential Max. limitation of thermostat’s setting temperature Min. limitation of thermostat’s setting temperature Temperature unit (°C/°F) °C n17 5% 70% 30.0 Stability factor for superheat control.
Rail heat Time period for the aggregate ON/OFF time Rail heat definition 0 = no rail heat relay 1 = alarm relay changed into rail heat relay 2 = compressor relay changed into rail heat relay 3 = no function 4 = no function 5 = light relay changed into rail heat relay o43 6 min 60 min 10 Data Supply voltage 230 V +10/-15%, 50/60 Hz, 5 VA Sensors o68 0 5 0 Service The following readouts can be performed via the belonging parameter Defrost sensor S5 (Sdef ) u09 Status on DI-input u10 Defrost time
Ordering Description Refrigeration control controller with plug connections and data communication Display unit Display unit with operating buttons Cable for display unit (2 m with plug, 24 pcs) Cable for display unit (6 m with plug, 24 pcs) Realtime clock Type Code no. EKC 414A1 084B8011 EKA 163B EKA 164B 084B8574 084B8575 The installation of data communications must comply with the requirements described in literature sheet no.
EKC 414C1 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 - Rail heat - Alarm or light function The controller should only be used in installations where the placing of the S1 sensor, and hence the signal reliability, has been checked in advance.
Liquid supply The supply of liquid is controlled on the basis of signals from three sensors (S1, S2 and an air sensor which may be placed before or after the evaporator). The sensors register the difference between the temperature at the evaporator outlet (S2) and the temperature at the evaporator inlet (S1). In conjunction with the air temperature the sensors create a signal, so that superheat is continuously kept at a minimum, whatever the operating conditions.
Menu survey Function SW 1.3x Parameter Min. Factory settings Max. Injection control function Max. value of superheat reference n09 3.0 K 15.0 K 12 Min. value of superheat reference n10 3.0 K 10.0 K 3 -50.0°C 15°C/ off off MOP temperature Normal display Shows the temperature at the selected sensor Define view in O17 - If you wish to see selected defrost stop temperature, give the lower button a brief push (1 sec.) no= stop on temperature not selected.) - °C -2.
ParaMin. meter Continued from previous page Max. Fac. setting AKV-ON definition When the ON input is cut out refrigeration is stopped. Here you define how the fan relay and the alarm function are to act: 1 = Fan relay = ON, alarm monitoring active 2 = Fan relay = OFF, alarm monitoring active 3 = Fan relay = OFF, no alarm monitoring 4 = Fan relay = ON, no alarm monitoring 5 to 8 = as 1 to 4, but without connection to terminal 40-41. o29 Function for relay on terminal 29-31 1=Alarm relay.
Ordering Description Type Refrigeration control controller with plug connections and data communication. The other plug part is not supplied. Display unit Display unit with operating buttons Cable for display unit (2 m with plug, 24 pcs) Cable for display unit (6 m with plug, 24 pcs) Real time clock Code no. The installation of data communications must comply with the requirements described in literature sheet no.
EKC 514B1 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. It contains: • Evaporator control with adaptive regulation • Changeover between two thermostat functions • Relays for operating of: - Light - Compressor - Defrost - Fan - Rail heat or compressor no. 2.
Liquid supply The liquid supply is regulated based on signals from three sensors (S1, S2 and an air sensor that may be placed before or after the evaporator). The sensors register the difference between the temperature at the evaporator outlet (S2) and the temperature at the evaporator inlet (S1). In combination with the air temperature the sensors create a signal, so that superheat is continually kept at a minimum whatever the operating conditions.
Menu survey SW = 1.2x ParaMin. meter Function Factory setting Max. Normal display Shows the temperaturen (weighted value between S3 and S4) The display can also be seen in u17. - If you wish to see the temperature at the defrost sensor, give the lower button a brief push (1 sec.) - °C °C Thermostat Differential r01 0.1 K 10.0 K Temperature unit (°C/°F) r05 °C °F Start/Stop of refrigeration r12 OFF ON 2.
Continued from previous page Superheat u21 K Manual control of outputs: OFF=No override 1: Light relay is ON 2: Compressor relay is ON 3: Defrost relay is ON 4: Fan relay is ON 5: Compressor relay 2 is ON 6: AKV output is 100% open 7: DO1 output is ON 8: Not used 9: Not used 10: All relay outputs, DO1, LED1, LED2 are OFF and AKV is closed 11: All relay output, DO1, LED1, LED2 are ON and AKV is 100% open 12: Light, comp., and fan are ON , AKV=30% 13: Light, comp.
Data Supply voltage 230 V +10/-15%, 50/60 Hz, 5 VA Sensors Pt 1000 ohm for refrigerant temperatures Pt 1000 ohm or PTC (R25 = 1000 ohm) for air temperatures Controller sensor system Measuring range -60 to +50°C Accuracy ±0.5°C for sensor temperature = -35 to +50°C The controller has no display or operating buttons on front panel. Operation takes place via a separate, connected display or via data communication Display/ operaIt is possible to connect two displays with 0.
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AK-CC 550 Application Complete refrigeration appliance control with great flexibility to adapt to all types of refrigeration appliances and cold storage rooms.
Functions • Adaptive control of superheat for optimum use of evaporator • Day/night thermostat according to ON/OFF or modulating principle • Temperature and alarm according to S3 and/or S4 temperature • Product sensor S6 with separate alarm limits • Change between thermostat settings via digital input • Start of defrosting via internal schedule, digital input or network signal • Natural, electric or warm gas defrosting • Stop of defrosting by time and/or temperature S5 • Adaptive defrosting based on intelli
AK-CC 750 Application AK-CC 750 controllers are complete regulating units which together with valves and sensors constitute complete evaporator controls for refrigeration appliances and freezing rooms within commercial refrigeration. Generally speaking they replace all other automatic controls containing, inter alia, day and night thermostats, defrost, fan control, rail heat control, alarm functions, light control, thermo valve control, solenoid valve, etc.
Data Supply voltage 24 V a.c. +/- 20% Power consumption AK-CC 750 12 VA Analogue inputs Pt 1000 ohm /0°C Dissolution: 0.1°C Accuracy: +/- 0.5° Pressure transmitter Dissolution 1 mV type AKS 32R / Accuracy +/- 10 mV AKS 32 (1-5 V) Max.
AKC 114-116 Application AKC controllers for up to three evaporators in refrigeration appliances and cold rooms with hot gas defrosting. Advantages Depending on the type, a controller will serve one, two or three evaporators. • Appliance and cold room control with AKV or thermostatic expansion valves • Refrigeration appliance and cold room monitoring. • Refrigeration plants with hot gas defrosting. • Brine chillers. • Stand-alone deep-freeze and cold rooms.
AKC 121A Application AKC controllers for two cooling coils in refrigeration appliances with brine cooling or with thermostatic expansion valves.
Cold storage room control AKC 72A Application AKC 72A controller primarily for cold room and cold store control. AKC 72A has a built-in log memory and alarm log.
AKC 121B Application AKC controllers for two cooling coils in cold rooms with brine cooling or with thermostatic expansion valves.
AKC 151R Application AKC controller for cold room and cold store control where flooded evaporator are used.
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Water chiller control EKC 312 Application The controller and valve can be used where there are requirements to accurate control of superheat in connection with refrigeration. E.g.: • Processing plant (water chillers) • Cold store (air coolers) • A/C plant Advantages • The evaporator is charged optimally – even when there are great variations of load and suction pressure.
Superheat function You may choose between two kinds of superheat, either: • Adaptive superheat or • Load-defined superheat MOP The MOP function limits the valve’s opening degree as long as the evaporating pressure is higher than the set MOP value. External start/stop of regulation The controller can be started and stopped externally via a contact function connected to input terminals 1 and 2. Regulation is stopped when the connection is interrupted.
Menu survey SW =1.2x Parameter Function Min. Fac. Settings Max. Service Read status of input DI u10 on/off Normal display Temperature at S2 sensor u20 °C Shows the actual superheat/ valve's opening degree/ temperature Define view in o17 Superheat u21 K - If you wish to see the expansion valve’s actual opening degree, give the lower button a brief push (1s).
Data Supply voltage Power consumption 24 V a.c. +/-15% 50/60 Hz, 10 VA (the supply voltage is galvanically separated from the input and output signals) Controller 5 VA ETS step motor 1.3 VA Pressure transmitter Input signal 4-20 mA from AKS 33 Digital input from external contact function Sensor input 2 pcs. Pt 1000 ohm Alarm relay 1 pcs.
EKC 315A Application The controller and valve can be used where there are requirements to accurate control of superheat and temperature in connection with refrigeration. E.g.
Superheat function You may choose between two kinds of superheat, either: • Adaptive superheat or • Load-defined superheat MOP The MOP function limits the valve’s opening degree as long as the evaporating pressure is higher than the set MOP value. Override function Via the analog input a displacement can be made of the temperature reference or of the superheat reference. The signal can either be a 0-20 mA signal or a 4-20 mA signal. The reference can be displaced in positive or negative direction.
Menu survey SW =1.3x ParaMin. meter Function Normal display Shows the actual superheat/ valve's opening degree/ temperature Define view in o17 Temperature, superheating, or the temp. reference is displayed if the bottom button is pressed briefly. Define view in o17 Reference Set the requirede set point - Factory setting Max. K % -60°C 50°C 10 Differential r01 0.1 K 20 K 2.
Data Supply voltage Power consumption Input signal 24 V a.c. +/-15% 50/60 Hz, (80 VA) (the supply voltage is galvanically separated from the input and output signals) Controller AKV coil 5 VA 55 VA Current signal 4-20 mA or 0-20 mA Pressure transmitter 4-20 mA from AKS 33 Data communication Digital input from external contact function Sensor input 2 pcs. Pt 1000 ohm Current signal 4-20 mA or 0-20 mA Load Max. 200 ohm Relay output 1 pcs. SPST Alarm relay 1 pcs.
EKC 316A Application The controller and valve can be used where there are requirements to accurate control of superheat and temperature in connection with refrigeration. E.g.: • Processing plant (water chillers) • Cold store (air coolers) • A/C plant Advantages • The evaporator is charged optimally – even when there are great variations of load and suction pressure.
Superheat function You may choose between two kinds of superheat, either: • Adaptive superheat or • Load-defined superheat MOP The MOP function limits the valve’s opening degree as long as the evaporating pressure is higher than the set MOP value. Override function Via the analog input a displacement can be made of the temperature reference or of the superheat reference. The signal can either be a 0-20 mA signal or a 4-20 mA signal. The reference can be displaced in positive or negative direction.
Menu survey SW =1.2x Parameter Function Min. Fac. sett. Max. Normal display n44 10 s 120 s 30 Safety value for lower temperature difference for inner loop n45 1K 20 K 3.0 Miscellaneous Shows the actual superheat/ valve's opening degree/ temperature Define view in o17 - K If you wish to see the expansion valve’s actual opening degree, give the lower button a brief push (1s). Define view in o17 - % Reference Set the required set point for the thermostat -* -60°C 50°C 3.
Data Supply voltage Power consumption Input signal Sensor input 24 V a.c. +/-15% 50/60 Hz, 10 VA (the supply voltage is galvanically separated from the input and output signals) Controller 5 VA ETS step motor 1.3 VA Current signal 4-20 mA or 0-20 mA Pressure transmitter 4-20 mA from AKS 33 Digital input from external contact function 2 pcs. Pt 1000 ohm Thermostat relay 1 pcs. SPST Alarm relay 1 pcs.
Liquid level control EKC 347 Application The controller is used for regulation of the refrigerant level in: • Pump reservoirs • Separators • Intermediate coolers • Economisers • Condensers • Receivers System A signal transmitter will constantly measure the refrigerant liquid level in the reservoir - the controller will receive the signal and subsequently control the valve, in order to control the refrigerant liquid level according to liquid level setpoint.
Application examples Pump reservoir Modulating control of injection makes for a more stable liquid level and suction pressure. Separator on flooded evaporator Modulating control and the valve’s large capacity range ensure a stable level - even under conditions of quickly changing loads. Intermediate cooler The level transmitter’s wide measuring range enables it to monitor the liquid at all levels of the reservoir - and hence to use the signal for safety functions in connection with the max.
Menu survey SW = 1.1 Param- Min. eter Function Fac. setting Max. Normal display Read the measured liquid level - % 50.0 If you wish to see the actual opening degree, give the lower button a brief push - % 0 If you wish to set the required setpoint you obtain access by pushing both buttons simultaneously - 0% 100% 100 Level control External contribution to the reference. Cf. also o10. Value is set in %-points.
Data Supply voltage Power consumption Input signal 24 V a.c. +/-15% 50/60 Hz, 60 VA (the supply voltage is galvanically separated from the input and output signals. Input/output are not individual galvanic isolated) Controller 5 VA 20 W coil for AKV 55 VA Level signal 4-20 mA or 0-10 V Reference displacement 4-20 mA, 0-20 mA, 2-10 V or 0-10 V ICM valve feedback signal From ICAD 0/4-20 mA Contact function start/stop of regulation Relay output 2 pcs. SPST Alarm relay 1 pcs.
Wireless temperature monitoring AK-Wireless Application • Units for monitoring and data collection of temperatures. • Can be installed in all system types where temperature monitoring is required • The unit can also supplement existing equipment: - Input control - Temperature measurement in refrigeration areas. Principles Temperature sensor Advantages • Compact unit for registering temperatures • No wiring • Good coverage.
Data Dimensions AK-WD 250 data logger and AK WR 200 receiver Power supply 30 V a.c. via ext.
Accessories IO modules for the AK series Introduction One of the control series can be expanded as the size of the system is increased. It has been developed for refrigeration control systems, but not for any specific application – variation is created through the read-in software and the way you choose to define the connections. It is the same modules that are used for each regulation and the composition can be changed, as required.
Module overview A control in this series should be defined and selected with information contained in the manual for the respective control. The overview below is for information and reordering Type Analog inputs On/Off outputs For sensors, Relay pressure trans- (SPDT) mitters etc. Controller 11 Solid state 4 On/off supply voltage (DI signal) Analog outputs Module with switches Low voltage (max. 80 V) 0-10 V d.c. For override of relay outputs 4 High voltage (max. 260 V) - - - - Code No.
Extension module AK-XM 101A Function The module contains 8 analog inputs for sensors, pressure transmitters, voltage signals and contact signals. Supply voltage to a pressure transmitter can be taken from either the 5 V output or the 12 V output. Ordering Type AK-XM 101A Function Code No. Extension module for sensors, pressure transmitters, contact signals 080Z0007 Additional information! See the control’s manual.
Extension module AK-XM 204A/B Function The module contains 8 relay outputs. AK-XM 204B has eight change-over switches at the front which make is possible to override the function of the relay. Either to position OFF or ON. In position Auto the controller carries out the control. Light-emitting diodes Status on outputs DO1 to DO8 AK-XM 204B also has a number of LEDs, which show whether the relays are being overridden.
Extension module AK-XM 205A/B Function The module contains: 8 analog inputs for sensors, pressure transmitters, voltage signals and contact signals. 8 relay outputs. AK-XM 205B has eight change-over switches at the front which make is possible to override the function of the relay. Either to position OFF or ON. In position Auto the controller carries out the control. max.
Extension module AK-OB 101A Function The module is a clock module with battery backup. The module can be used in controllers that are not linked up in a data communication unit together with other controllers.
Extension module AK-PS 075/150/250 Transformer module/Power supply AK-PS 075 18 VA Function 24 V supply for controller. Supply voltage 230 V a.c or 115 V a.c. (from 100 V a.c. to 240 V a.c.) Placing On DIN-rail AK-PS 150 36 VA AK-PS 250 60 VA Ordering Type Function Code No. AK-PS 075 Transformer module, 18 VA 080Z0053 AK-PS 150 Transformer module, 36 VA 080Z0054 AK-PS 250 Transformer module, 60 VA 080Z0055 Additional information! See the control’s manual.
Extension module AK-OB 003A Function The module contains two analog voltage outputs of 0 – 10 V. + - AO2 + AO1 Placing The module is placed on the PC board in the controller module. Ordering Type Function Code No. AK-OB 003A Analog output module 080Z0251 Additional information! See the control’s manual. Module Point Type Max AO1 1 24 0 - 10 V 2.5 mA AO2 1 25 0 - 10 V 2.
Display EKA 161/162/163/164 Application The displays may be used in conjunction with some of the controllers in the EKC series, e.g. EKC 414, EKC 514 EKA 161 and 163 has no operating buttons and can be mounted on the refrigeration appliance in such a way that the customer can see the temperature at the goods. EKA 162 and 164 has operating buttons so that settings can be made in the controller's menu system.
Data Supply Display/ operation Electrical connection Environments Enclosure Front mounting Ordering Type 12 V +/-15% (from controller) Readout accuracy in measuring range: 0,1°C EKA 161 /163, LED, 3-digits EKA 162 /164, LED, 3-digits, operation buttons EKA 161 Via plug EKA 162 EKA 163A Via screw terminals EKA 164A EKA 163B Via plug EKA 164B -10 - 55°C, during operation -40 - 70°C, during transport 20 - 80% Rh, non condensing No shock influence/no vibrations From back IP 20 EKA 161 IP 40 EKA 162 EKA 16
Display console This console can be used for a display of the type EKA 163 or EKA 164. The console can be used on refrigeration appliances where there is no option of embedding the display in the front. The console is fixed with two screws and the connection to the display is led backwards. Data Mounting On plate with two screws. Screws are included. Enclosure IP 65 Ordering Description Application Code No.
EKA 165 The display can be used with compressor controls of the type AK-PC 530. The display will show P0 or Pc and the control situation around the neutral zone. The LEDs on the plate will show the compressors and condensers that are connected. There are LEDs for the following functions: • Compressors • Fans • Speed control • Digital input • Optimisation function • Alarm Ordering Data Power supply From controller Description Display/ operation Reading accuracy in the measured area: 0.
AKA 14 Application Temperature display is used with controllers of the type AKC. External fitting Function LCD - displays Supplied with 3 m cable Ordering numbers can be found at the back of the catalogue together with numbers for AKC controllers. AKA 15 Application Temperature display is used with controllers of the type AKC. Installed in front panel Function LED displays Cable must be ordered separately.
Thermometer EKA 151 Application The thermometer is an independent unit for showing the temperature at a refrigerating point. Design and mounting same as the other controllers in the Danfoss EKC 201 series. Function The thermometer operates in conjunction with a PTC temperature sensor which must be 1000 ohm at 25°C. The sensor can be supplied with the thermometer. Data Supply voltage Sensor connection 230 V +10/-15%, 50/60 Hz, 2.5 VA PTC 1000 ohm at 25°C e.g. type EKS 111 Cable length = max.
Temperature sensors Pt 1000 ohm/0°C AKS 11, AKS 12, AKS 21 Application The sensor is recommended for accurate temperature measurements such as e.g. superheating, food safety logs and other important temperature measurements. Function The sensor unit consists of a platinum element the resistance value of which changes proportionally with the temperature. Pt 1000 ohm sensor (1000 ohm at 0°C). The sensors are adjusted and meet the tolerance requirements of EN 60751 Klasse B.
AKS 11, AKS 12, AKS 21 °C 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ohm 1000.0 1003.9 1007.8 1011.7 1015.6 1019.5 1023.4 1027.3 1031.2 1035.1 1039.0 1042.9 1046.8 1050.7 1054.6 1058.5 1062.4 1066.3 1070.2 1074.0 1077.9 1081.8 1085.7 1089.6 1093.5 1097.3 1101.2 1105.1 1109.0 1112.8 1167.7 1120.6 1124.5 1128.3 1132.2 1136.1 1139.9 1143.8 1147.7 1151.5 1155.4 1159.3 1163.1 1167.0 1170.8 1174.7 1178.5 1182.
PTC 1000 ohm/25°C EKS 111 Application This sensor is primarily used with controls of the type EKC 202, AK-CC 210 and EKC 301, but only if the tolerance can be accepted or eliminated. Function The sensor is based on a PTC element with a resistance of 1000 ohm at 25°C. Technical data Nominal resistance Temperature range Cable material Sensor tube Time constant Water Enclosure AMP plug R (Typ.
NTC 5000 ohm/25°C EKS 211 Application This sensor is primarily used with controls of the type EKC 100 where the tolerance can be accepted. Function NTC sensor for temperature measurements in the following areas: • Refrigeration • Air conditioning • Heating Technical data Nominal resistance Temperature range Cable material Sensor housing Time Water constant Air Enclosure 5000 ohm at 25°C -40 to 80°C PVC, 2 x 0.
Pressure transmitters AKS 32, AKS 33 and AKS 32R Introduction AKS 32 and AKS 33 are pressure transmitters that measure a pressure and convert the measured value to a standard signal: • 1 → 5 V d.c. for AKS 32 • 4 → 20 mA for AKS 33 AKS 32R is a ratiometric pressure transmitter that converts the measured pressure to a linear output signal. The min. value of the output signal is 10% of the actual supply voltage. The max. value is 90% of the actual supply voltage.
Ordering AKS 32, version 1 → 5 V Operating range bar Permissible working pressure PB bar Compensated temperature range °C 1/4 NPT 1) G 3/8 A 2) 1/4 flare 3) Code No.
Dimensions and weights AKS 32, AKS 33 AKS 32R Cable version Version with DIN 43650 plug Pressure G 3⁄8 A 1 ⁄4 in. flare ⁄4-18 NPT ISO 228/1 L1 [mm] 122 127 122.5 L [mm] 16 18 16,5 1 connection 7 ⁄16-20 UNF Weight approx. 0.3 kg Additional information! AKS 32 and AKS 33 Data sheet: RD5GH AKS 32R Data sheet: RD5G.
Level transmitter AKS 41 Introduction AKS 41 is a liquid level transmitter used to measure the liquid level in refrigerant vessels.
Expansion valves Main data for the most standard products are briefly described below. Further data can be found in the respective technical brochures. Especially for valve dimensioning more information needs to be obtained. AKV 10, AKV 15, AKV 20 Application AKV are electrically operated expansion valves designed for refrigerating plant. The AKV valves can be used for HCFC-, HFC and R744-refrigerants. The AKV valves are normally controlled by a controller from Danfoss’ range of ADAP- KOOL® controllers.
Rated capacity and Ordering Rated capacity in kW 1) Valve type R22 AKV 10-1 R 134a 1.0 kv-value R 404A R 507 R 407C 0.8 1.1 0.9 Inlet × outlet in. m3/h Connections Solder ODF Inlet × Code no. Code no. outlet in. /8 × 1/2 068F1161 10 × 12 068F1162 /8 × /2 068F1164 10 × 12 068F1165 /8 × 1/2 068F1167 10 × 12 068F1168 /8 × /2 068F1170 10 × 12 068F1171 /8 × 1/2 068F1173 10 × 12 068F1174 0.010 3 AKV 10-2 1.6 1.4 1.3 1.7 0.017 3 AKV 10-3 2.6 2.1 2.0 2.5 0.
Spare parts AKV 10 Orifice Orifice no. 1 2 3 4 5 6 7 Code no. 068F0506 068F0507 068F0508 068F0509 068F0510 068F0511 068F0512 Filter: Contents: Contents 1 pc. orifice 1 pc. Al. gasket 1 pc. cap for coil Code no. 068F0540 10 pcs. filters 10 pcs. Al. gaskets Upper part: Code no. 068F0541 Contents: 1pc. armature ass. 1pc. armature tube 1pc. Al. gasket Gasket for upper part: Contents: Code no. 068F0549 25 pcs. Cu/Tn gaskets AKV 15 Piston Type AKV 15-1 AKV 15-2 AKV 15-3 AKV 15-4 Code no.
AKVA 10 AKVA 15, AKVA 20 AKVA are electrically operated expansion valves designed for ammonia refrigerating plant. The AKVA valves are normally controlled by a controller from Danfoss’ range of ADAP-KOOL® controllers. The AKVA valves are supplied as a component programme, as follows: • Separate valve • Separate coil with terminal box or cable • Spare parts in the form upper part, orifice and filter The individual capacities are indicated with a number forming part of the type designation.
Rated capacity and Ordering Symbol Nominal capacity 1) Valve type kW 4 6.3 10 16 25 40 63 100 125 200 300 500 500 800 1250 2000 3150 AKVA 10-1 AKVA 10-2 AKVA 10-3 AKVA 10-4 AKVA 10-5 AKVA 10-6 AKVA 10-7 AKVA 10-8 AKVA 15-1 AKVA 15-2 AKVA 15-3 AKVA15-4 AKVA 20-1 AKVA 20-2 AKVA 20-3 AKVA 20-4 AKVA 20-5 Kv-value 3 tons 1.1 1.8 2.8 4.5 7.1 11.4 17.9 28.4 35 60 90 140 140 240 350 600 900 m /h 0.010 0.015 0.022 0.038 0.055 0.103 0.162 0.251 0.25 0.40 0.63 1.0 1.0 1.6 2.5 4.0 6.
Spare parts AKVA 10 Filter Orifice Type Code No. AKVA 10-1 068F0526 AKVA 10-2 068F0527 AKVA 10-3 068F0528 AKVA 10-4 068F0529 AKVA 10-5 068F0530 AKVA 10-6 068F0531 AKVA 10-7 068F0532 AKVA 10-8 068F0533 Code No. Contents 068F0540 10 pc. filters 10 pc. Al. gaskets 068F5045 1 pc. armature 1 pc. armature tube 1 pc. Al. gasket Contents 1 pc. orifice 1 pc. Al. gasket 1 pc. cap for coil Upper part Gasket for upper part 068F0548 25 pc. Al. gaskets Code No.
Coils for expansion valves The coils are used together with expansion valves types AKV and AKVA. Data 3-core cable The external thread in the screwed cable entry suits flexible steel hose or corresponding cable protection. Terminal box Leads are connected to terminal screws in the terminal box. The box is fitted with a Pg 13.5 screwed entry for 6 → 14 mm cable. Max. lead cross section: 2.5 mm2.
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ETS Application ETS is a series of electrically operated expansion valves for precise liquid injection in evaporators for air conditioning and refrigeration applications. Function The valve piston and linear positioning design is fully balanced, providing bi-flow feature as well as solenoid tight shut-off function in both flow directions. Advantages • Precise positioning for optimal control of liquid injection. • ETS 50 and 100 are designed for HFC/HCFC conditions including R410A, providing 45.
Electrical data Capacity Parameter Rated capacity1) ETS 50-400 Stepper motor type Bi-polar - permanent magnet Step mode 2 phase full step Phase resistance 52Ω ±10% Type R410A kW R407C TR R22 TR R134a R404A kW TR kW TR kW TR 215 62 170 48.9 161.4 46.3 488.4 140.9 447.8 128.7 400.4 115.4 316.5 91.2 ETS 50B 2) 262.3 kW 75.7 240.5 69.1 Phase inductance 85 mH ETS 100B 300.5 86.6 Holding current Depends on application.
ICM Motor valve Application ICM valves are intended for regulation of expansive processes in liquid lines with or without phaseshift, or for control of the pressure or the temperature in dry Function ICM motor valves belong to the ICV (Industrial Control Valve) family. The motor valve comprises three main components: valve body, combined top cover/function module and actuator. ICM are direct operated motorised valves driven by actuator type ICAD (Industrial Control Actuator with Display).
Design Technical data Connections There is a very wide range of connection types available with ICM valves: D: Butt weld, DIN (2448) A: Butt weld, ANSI (B 36.10) J: Butt weld, JIS (B S 602) SOC: Socket weld, ANSI (B 16.11) SD: Solder connection, DIN (2856) SA: Solder connection, ANSI (B 16.22) FPT: Female pipe thread (ANSI/ASME B 1.20.1) Refrigerants Applicable to all common refrigerants including R717 and R744 (CO2) and non- corrosive gases/liquids. Use with flammable hydrocarbons cannot be recommended.
Evaporation pressure valve KVS Application KVS is a series of electrically operated suction modulating control valves for AC transport and refrigeration applications. Function Accurate temperature or pressure control is obtained by modulating the refrigerant flow in the evaporator with a current or voltage driver. With an EKC 368 controller (current driver) and an AKS sensor placed in the media to be controlled, an accuracy better than ± 0.5 K can be obtained.
Electrical data Ordering Parameter KVS 42-54 Stepper motor type Bi-polar - permanent magnet Step mode 2 phase full step Rated capacity1) R22 Type kW Phase resistance 52Ω ±10% Phase inductance 85 mH Holding current Depends on application. Full current allowed (100% duty cycle) KVS 42 Step angle 7.5° (motor), 0.9° (lead screw), Gearing ration 8.5:1. (38/13)2:1 Nominal voltage (Constant voltage drive) 12 V d.c. -4% +15%, 150 steps/sec.
Gas detector GD Application GD detects a wide range of commonly used refrigerants including Ammonia, Carbon Dioxide, Halo-Carbons and Hydro-Carbons. Advantages • Alarm levels can be set locally. • GD can be connected directly to a Danfoss m2 monitoring unit. No additional add on is required.
Ordering All models Range [PPM] Standard EExd Low Temp –40/+40C 148H5002 148H5003 148H5004 148H5011 148H5012 148H5013 148H5014 148H5020 148H5021 148H5022 148H5023 148H5024 Catalytic 148H5030 148H5031 148H5032 148H5033 148H5034 Infrared 148H5070 148H5071 300 Semi-Conductor 148H5100 148H5101 148H5102 148H5104 500/900 300 Semi-Conductor 148H5110 148H5111 148H5112 148H5114 2000/4000 0 Catalytic 148H5160 148H5161 Sensor type With LCD display Alarm limits.
System unit 1 System manager System manager AK-SM__ is a system unit for use with controls in the AK- series. The system manager makes it possible to build up complex control systems with alarm monitoring and data logging of decentralised refrigeration systems.
AK-SM 720 Used where data communication takes place using LON RS 485 or MOD-BUS. 200 controllers can be connected which must be distributed on LON RS 485 and MOD-bus. Several system managers can be connected via the IP connection so that measurement from up a total of 400 controllers can be registered. For remote control a modem can be connected or the connection can take place via an IP network. Remote control takes place with software type AK-ST or EM 100.
Web-based operation In general All controllers in the AK series are equipped with data communication. Operation of individual controllers must take place by connection to the data communication. This can take place directly on the system or it can take place at a distance, e.g. via a modem. A combination is also possible.
EM 100 The EM100 provides a web based graphical user interface of a store which allows a range of daily users to monitor data, alarms and reports, either locally or remotely. The Store Mimic is a visual representation of a store which displays the readings of all the assets and their controllers contained within the store. It provides an overall view of the store and its individual assets in real time, providing up-to-date informations due to automatic refreshes.
Optimisation Introduction The system unit in an ADAP-KOOL® refrigeration system contains over-riding functions which transfer signals between selected controls via the data communication. Operation interface System unit Controllers Depending on the chosen fuction, the controls are gathered in groups. When override is activated, all controls in the group will receive the same overide signal.
Day/night control This function transmits a signal to selected controllers. The signal can be used for raising the temperature reference and for raising the suction pressure reference. When the individual controllers receive the signal, the reference will be changed by the value set in the individual controllers. Time schedule The override function enables you to define a number of time schedules. Example of use: Input signal for day/night control.
System unit 2 AK-SM 350 Application The unit is a combined data collection unit and monitoring unit for smaller refrigeration installations.
Data Supply 115 V/230 V +10/-15%, 50/60 Hz, 10 VA Connection PT 1000 ohm at 0°C or PTC 1000 ohm at 25°C or NTC 5000 ohm at 25°C or Termistor (-80 to 0, -40 to 40 or 0 to 100°C) Digital On/Off signal or Standard 0 - 10 V /4 - 20 mA signal Display Graphic LCD, 240 x 64 Direct measuring points 16 Total number of points 65 Measuring range, general -60 to +50°C Measuring accuracy at Pt 1000 Resolution 0.1 K Accuracy: +/- 0.
System unit 3 AK-SC 255 Application The feature-filled AK-SC 255 system controller is the heart of your control and monitoring system. It gives you a brilliant full color high resolution display, context-sensitive soft keys, easy navigation to every part of your system, an on-board Ethernet port, a complete suite of maintenance management tools, extensive alarm capability, and much more.
Technical data 60 Max.
System unit 4 Gateways AKA 241, AKA 243 and AKA 245 gateways are system components for use together with controllers in ADAP-KOOL® Refrigeration control systems, and where operation occurs in AKM type system software. Gateways make it possible to construct complex control systems with alarm monitoring and data logging in connection with decentralised refrigeration plants. Controllers are connected to a data communication system and various communication forms exist depending on controller type.
Operation AKA 21 Only for DANBUSS data communication. This unit is only recommended for small systems and for use in service situations, The unit is provided with plugs that can connect it to the data communication. Settings are made in the individual controllers via a menu system. AK-Monitor Is a PC programme with a few well arranged functions selected from the more comprehensive AKM 4 programme.
Optimisation Introduction The system unit in an ADAP-KOOL® refrigeration system contains overriding functions which transfer signals between selected controls via the data communication. Operation interface System unit Controllers Based on the selected function the controllers are gathered in groups. So when there is override, all controllers in the group will receive the same override signal. The system unit must be a: • Gateway.
Day/night control This function transmits a signal to selected controllers. The signal can be used for raising the temperature reference and for raising the suction pressure reference. When the individual controllers receive the signal, the reference will be changed by the value set in the individual controllers. Time schedule The override function enables you to define a number of time schedules. Example of use: Input signal for day/night control.
Accessories AKA 231 Modem Application The AKA 231 is a modem for use together with ADAP-KOOL® Refrigeration system control. It can transmit data between the refrigeration system’s ADAP-KOOL® system unit and an external operating interface that is also an ADAP-KOOL® product. Transmission is via the telephone network. Advantages The modem is a PSI-DATA/BASIC-Modem/RS232 V.24 and is designed for use in an industrial environment with harsh EMC conditions.
AKA 222/223 Repeater Application The module is a repeater for use together with ADAP-KOOL® control systems. It can strengthen and regenerate the signal on the data communication cable between the refrigeration system’s controls and the system unit. Can be used for the following communication: • DANBUSS • Lon RS 485 • MOD-bus Function Regenerates the data signal when there are long wire sections and when many controls are connected.
Appendix Ordering survey AK series This list is intended for customers who know our products in the AKC series and need an overview.
Type Description Language Code no.
RK0YG302 © Danfoss 05/2007