Related Manuals for Danfoss EKC 223
Summary of Contents for Danfoss EKC 223
- Page 1 User Guide Case controller Type EKC 223 and EKC 224 SW Ver. 1.0x For refrigerated display cabinets, cold storage rooms and simple heating applications.
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Page 2: Table Of Contents
Case controller, type EKC 223 and EKC 224 Contents Introduction Application Principle Advantages System overview Functions Temperature sensors Defrost sensor Condenser temperature sensor Voltage protection Condenser temperature monitoring Change of temperature reference Night setback Digital inputs Door contact function Defrost... - Page 3 Case controller, type EKC 223 and EKC 224 Alarm codes Control status Operation Operation via display Key operations View alarms Lock keyboard Factory resetting Display codes Parameter list Quick setup – get a good start Parameters Parameter description Configuration Thermostat...
- Page 4 Case controller, type EKC 223 and EKC 224 Dimensions Ordering Certificates, declarations, and approvals Certificates, declarations, and approvals Online support © Danfoss | Climate Solutions | 2023.05 BC432222569027en-000201 | 4...
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Page 5: Introduction
• Accurate temperature measurements System overview The EKC 223/224 controllers have a TTL port on the rear side of the controller and this TTL port allows the controller to be connected to various interfaces. © Danfoss | Climate Solutions | 2023.05... - Page 6 ® . Download KoolProg ® http://koolprog.danfoss.com. Refer to the installation guides of KoolKey (EKA 200) and Mass Programming Key (EKA 201) for further details on how to interface and use these modules. © Danfoss | Climate Solutions | 2023.05 BC432222569027en-000201 | 6...
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Page 7: Functions
Case controller, type EKC 223 and EKC 224 Functions Temperature sensors One thermostat sensor – Sair – can be connected to the controller, and the relevant application defines the placement. It can be placed in the air flow before the evaporator or in the air flow after the evaporator. The latter is mainly used where there is a risk of too low temperature at the products. -
Page 8: Change Of Temperature Reference
Case controller, type EKC 223 and EKC 224 This is used to indicate to the user that something is wrong with the condenser. Often the reason is that that the air flow to the condenser is restricted (dirt) or because the condenser fan is broken. The alarm will reset if the condenser temperature drops back by 5 °C. -
Page 9: Digital Inputs
Case controller, type EKC 223 and EKC 224 Digital inputs There are two digital inputs, DI1 and DI2, with dry contact function. They can be used for the following functions: • Status readout • Door function with stop of cooling and door alarm •... -
Page 10: Coordinated Defrost Via Network
Case controller, type EKC 223 and EKC 224 Coordinated defrost via network A coordinated defrost among multiple controllers can be obtained via data communication. The controllers will have to be added to a coordinated defrost group in the AK-SM system manager. When a defrost cycle is scheduled the system manager will start a defrost in all controllers. -
Page 11: Applications
Case controller, type EKC 223 and EKC 224 Applications EKC 223 and 224 are developed for refrigerated plug-in cabinets with one compressor or for remote cabinets controlling the liquid line solenoid valve. 3 sensors can be connected; Sair, S5 (Defrost termination), and Sc (Condenser temperature). -
Page 12: Wiring Diagrams
Case controller, type EKC 223 and EKC 224 Wiring diagrams EKC 224 Table 3: The electrical wiring diagrams for the selection of 4 applications Applications Wiring diagrams 115/ 115/ Sair S5 Sc/DI1 230 V 230 V 115/ 115/ Sair S5 Sc/DI1... -
Page 13: Ekc 223
Case controller, type EKC 223 and EKC 224 EKC 223 Table 4: The electrical wiring diagrams for the selection of 4 applications Application Wiring diagrams 115/ 115/ Sair S5 Sc/DI1 230 V 230 V 115/ 115/ Sair S5 Sc/DI1 230 V... - Page 14 Case controller, type EKC 223 and EKC 224 Name Terminals Description 1,2L Digital output signal • Compressor or Heating element: There is connection between terminal 1 and 2 when the function is ON. 3L, 5 Digital output signal • Defrost and Light: There is connection between terminal 3L and 5 when the function is ON.
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Page 15: Installation
Your local Danfoss agent will be pleased to assist with further advice, etc. Integration into network systems The EKC 223/224 controllers have a TTL port on the rear side of the controller and this TTL port allows the controller to be connected to various interfaces The RS-485 adapter (EKA 21x) allows to integrate the controller on a Modbus fieldbus. -
Page 16: Installation
Case controller, type EKC 223 and EKC 224 Installation The controller must be connected to the RS-485 adapter via an interface cable (080N0327). Remember to fasten the cable plug to the controller via the cable clip, see Figure 14. Please refer to the installation guide for RS-485 adapter (EKA 206) for detailed instruction on how to install the adapter correctly. - Page 17 Case controller, type EKC 223 and EKC 224 Figure 17: Modbus operation Tx (Transmit) Green Yellow Rx (Receive) IMPORTANT: It is important that the installation of the data communication cable is performed correctly with sufficient distance to high voltage cables.
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Page 18: Configuration
Case controller, type EKC 223 and EKC 224 Configuration DI input configuration The digital inputs DI1 and DI2 can be configured for multiple functions and the table below shows the options and the polarity of the digital input signals. Table 7: DI input configuration... - Page 19 Case controller, type EKC 223 and EKC 224 The individual status codes have the following meanings: Table 9: Control status Code Description Normal control Waiting for end of the coordinated defrost Compressor is running on Min ON timer Compressor stopped due to Min OFF timer Defrost cycle is in drip off delay Control has been stopped by "r12 Main switch"...
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Page 20: Operation
Operation Operation via display EKC 223/224 controllers come with four push buttons, a big display, easy and intuitive menu structure, and pre- defined applications ensure ease of use. The values will be shown with three digits, and with a “r05 Temp. unit” setting you can determine whether the temperature is to be shown in °C or in °F. -
Page 21: Lock Keyboard
When the code “Fac” is shown in the display, select "yes". NOTE: The OEM factory setting will either be the Danfoss factory settings or a user defined factory setting if one has been made. The user can save his setting as OEM factory setting via parameter o67. -
Page 22: Quick Setup - Get A Good Start
Case controller, type EKC 223 and EKC 224 Figure 21: SET button parameter list SET button 3 s: configuration settings (PS) PS: Access code (if any) Main switch Application mode Temperature sensor type DI1 Configuration DI2 Configuration Quick setup Network address <... -
Page 23: Parameters
Sc) must be of same type. • (0) n5 = NTC 5k (Danfoss type EKS211) • (1) n10 = NTC 10k (Danfoss type EKS 221) • (2) Pt = Pt1000 (Danfoss type AKS11, AKS12, AKS21) • (3) Ptc = PTC 1000 (Danfoss type EKS 111) o02 DI1 Config. -
Page 24: Thermostat
Case controller, type EKC 223 and EKC 224 This menu can only be set when regulation is stopped, i.e. “r12” is set to 0. This menu can only be set when regulation is stopped, i.e. “r12” is set to 0. -
Page 25: Defrost
Case controller, type EKC 223 and EKC 224 Code Text on network Description A14 LowLim Air Low alarm limit Here you set the alarm limit for low temperature alarms. The limit value is set in °C (absolute value). During night condition, the limit will remain unchanged, while a reference displacement r39, will increase or lower the limit with the value given by r40. -
Page 26: Fan
Case controller, type EKC 223 and EKC 224 Code Text on network Description d05 Time Stagg Time staggering for defrost cut-ins during start-up The function is only relevant if you have several refrigeration appliances or groups where you want the defrost to be stag- gered in relation to one another. -
Page 27: Compressor
Sc) must be of same type. • (0) n5 = NTC 5k (Danfoss type EKS211) • (1) n10 = NTC 10k (Danfoss type EKS 221) • (2) Pt = Pt1000 (Danfoss type AKS11, AKS12, AKS21) • (3) Ptc = PTC 1000 (Danfoss type EKS 111) -
Page 28: Polarity
Case controller, type EKC 223 and EKC 224 Code Text on network Description o37 DI2 Config. DI2 configuration Here you can configure the DI2 to one of the functions listed below. • (0) oFF = not used • (1) Sdc = status display output •... -
Page 29: Service
Case controller, type EKC 223 and EKC 224 Service Table 20: Service Code Text on network Description Service u00 Ctrl. State Control state Here the actual control state of the controller can be readout: • (0) S0=Normal ctrl. • (1) S1=Wait after defrost •... -
Page 30: Thermostat
Case controller, type EKC 223 and EKC 224 EKC 224 Appl. EKC 223 Appl. De‐ Code Short text manual Min. Max. Unit fault DI1 configuration (0) oFF=not used, (1) Sdc=status, (2) doo=door function, (3) doA=door alarm, (4) SCH=main switch, (5) nig=day/night mode,... -
Page 31: Defrost
Case controller, type EKC 223 and EKC 224 Defrost Table 24: Defrost EKC 224 Appl. EKC 223 Appl. De‐ Code Short text manual Min. Max. Unit fault Defrost Defrost method (0) non = None, (1) nat = Natural, (2) El = Electrical, (3) gas = Hot Defrost stop temperature 50.0... -
Page 32: Polarity
Case controller, type EKC 223 and EKC 224 EKC 224 Appl. EKC 223 Appl. De‐ Code Short text manual Min. Max. Unit fault Sensor type selection (0) n5 = NTC 5k, (1) n10 = NTC 10k, (2) Pt = Pt1000, (3) Ptc = PTC... - Page 33 Case controller, type EKC 223 and EKC 224 EKC 224 Appl. EKC 223 Appl. De‐ Code Short text manual Min. Max. Unit fault Alarm relay 0/Off 1/ On 0/Off Light relay 0/Off 1/ On 0/Off Firmware version readout Controller code no.
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Page 34: Product Specification
Case controller, type EKC 223 and EKC 224 Product specification Technical specification Table 30: Technical specification Features Description Purpose of control Operating temperature sensing control suitable for incorporation into commercial air-conditioning and refrigeration appli- cations Construction of control Incorporated control... -
Page 35: Installation Steps
Case controller, type EKC 223 and EKC 224 Installation steps • Place the wired controller in the slot and ensure rubber sealing is resting properly on the mounting surface. • Slide the mounting clips along the rails of the rear plastic from the rear side of the panel. -
Page 36: Ordering
Case controller, type EKC 223 and EKC 224 Ordering Table 31: Ordering Code no. Type Symbol Description Single Pack I pack S/M pack, 115 V AC, 3 relays 084B4053 084B4153 EKC 223 S/M pack, 230 V AC, 3 relays 084B4054... -
Page 37: Certificates, Declarations, And Approvals
Some approvals may change over time. You can check the most current status at danfoss.com or contact your local Danfoss representative if you have any questions. -
Page 38: Online Support
Online support Danfoss offers a wide range of support along with our products, including digital product information, software, mobile apps, and expert guidance. See the possibilities below. The Danfoss Product Store The Danfoss Product Store is your one-stop shop for everything product related—no matter where you are in the world or what area of the cooling industry you work in.
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