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User Guide
Electronic Refrigeration Controller
ERC 111A
This reference manual is intended to be used primarily by OEMs for the purposes
of programming ERC 111A. It may also be useful for technicians. It is not intended
as a user guide for end users.
www.danfoss.com/erc
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Summary of Contents for Danfoss ERC 111A
- Page 1 Electronic Refrigeration Controller ERC 111A This reference manual is intended to be used primarily by OEMs for the purposes of programming ERC 111A. It may also be useful for technicians. It is not intended as a user guide for end users. www.danfoss.com/erc...
- Page 2 User Guide | ERC 111A Refrigeration Controller Introduction Application Temperature control for refrigeration appliances. Front panel mounting. The latest generation CPU, plenty of memory Advantages and high-end electronic components allow for a uniquely versatile software. Three separate password-protected user levels can be used to control more than 100 different parameters to fit...
- Page 3 User Guide | ERC 111A Refrigeration Controller Typical application Glass Door Merchandiser Gastro cooler © Danfoss | Climate Solutions | 2024.07 BC227086437558en-000801 | 3...
- Page 4 User Guide | ERC 111A Refrigeration Controller Product overview Display The ERC 111A is an electronic refrigeration controller with an LED display especially developed for bottle coolers and commercial fridges and freezers. It is particularly suited for OEM customers where time, easy and reliable installation and high quality need to go hand in hand with flexibility.
- Page 5 User Guide | ERC 111A Refrigeration Controller Quick programming Software for PC KoolProg Software from Danfoss for programming the ERC-controller via a PC rather than with the front panel buttons. https://www.danfoss.com/en/service-and- support/downloads/dcs/koolprog/ KoolKey (EKA200) KoolKey (EKA 200) KoolKey is a smart device that acts as a Gateway to connect ERC controller to PC software"KoolProg"...
- Page 6 Modular connector system for OEM customers, with optional output screw terminal adapter; Connectors Input connector type: Rast2 5 Edge connectors; output connector type: RAST 5 standard Programming Programming with Danfoss KoolProg PC software and Programming key Assembly Front mounting; brackets; fully integrated solution (requires OEM specific design of mounting hole) Display LED display, 3 digit, decimal point and multi functionality icons;...
- Page 7 User Guide | ERC 111A Refrigeration Controller Connections 100 – 240 V AC SMPS ERC111A DO’s Controller AI/DI’s Gateway Optional PC communication © Danfoss | Climate Solutions | 2024.07 BC227086437558en-000801 | 7...
- Page 8 User Guide | ERC 111A Refrigeration Controller Code numbers Type Type I-Pack I-Pack Qty. Code no. Qty. Code no. Clips ERC 111A, Red LED, GDM without 080G3230 buzzer Black (2 needed per controller) 080G3308 ERC 111A, Blue LED, GDM without...
- Page 9 User Guide | ERC 111A Refrigeration Controller Operation The controller can be configured in four ways: Programming tools • KoolProg software using KoolKey as a Gateway • KoolKey as Copy key • Mass programming Key (MPK) • Buttons on the front panel of the controller All these tools are supplied separately.
- Page 10 This parameter defines the desired cabinet air temperature (set point) Min. -100.0°C In standard operation the set point is changed by simply pressing the Max. 200.0°C "temperature up/down" buttons on ERC 111A; for laboratory and Default 2.0°C assembly line you may opt for software controlled set point configuration "SPr"...
- Page 11 User Guide | ERC 111A Refrigeration Controller Defrost settings "dFt" Defrost Type "no": defrost function is disabled. Default no "nat": OFF-cycle defrost (natural defrost). "Add" Adaptive defrost "no": defrost controlled by time. Min. no "yES": automatic defrost control activated. Max. yes Default no "dtt"...
- Page 12 User Guide | ERC 111A Refrigeration Controller "ddt" Defrost ∆t Defrost ∆t compare with evaporator temperature of first cut out after defrost Min. 0.0 K to trigger defrost start. Max. 30.0 K The defrost start if evaporator temperature has decreased more than "ddt"...
- Page 13 User Guide | ERC 111A Refrigeration Controller "CSt" Minimum Stop Time It determines the minimum number of minutes the compressor must Min. 0 min remain idle before a Temperature cut-in can take effect. For example, Max. 30 min Default 2 min...
- Page 14 The controller can have its display intensity (brightness) set in one of Min. 2 two ways: Max. 10 A) With a Danfoss ambient light sensor attached, the brightness of the Default 10 display is adjusted automatically according to the ambient light level (see the assignments section).
- Page 15 User Guide | ERC 111A Refrigeration Controller "SHo" Show Holiday "no": display will show temperature or ECO mode during holiday mode. Min. no "yES": display will show "HoL" during holiday mode. Max. yes Default no "SdF" Show Defrost If set to "yES", this parameter causes the display to show DEF when the Min.
- Page 16 NOTE: coded sensors will impact on the number of possible configurations. For instance: Danfoss supplies only 2-pole defrost sensors, so input "S3" will most likely be used as a defrost/evaporator temperature sensor input. 16 | BC227086437558en-000801 © Danfoss | Climate Solutions | 2024.07...
- Page 17 You may not therefore have access to change all the passwords. Passwords are entered by using the up and down arrow buttons. Min. 0 Max. 999 Danfoss advises against using passwords which are easy to remember Default 0 or enter, for example 111, 222, 123 etc. "PS3"...
- Page 18 User Guide | ERC 111A Refrigeration Controller Service information settings The parameters in the following section are READ ONLY and cannot be changed by the user. They provide information for technicians and OEM users. NOTE: the only parameters that can be configured are: "oEL", "oEn", "oEH".
- Page 19 User Guide | ERC 111A Refrigeration Controller Display messages "unP" Device is unprogrammed (relay output is lockt) "Prg" Device has not finished programming (relay output is lockt) "SC" Device is in pull-down mode (super-chill) "dEF" Device is defrosting Troubleshooting Problem...
- Page 20 User Guide | ERC 111A Refrigeration Controller Typical applications Glass Door Merchandiser, No-frost freezer/sub-zero cooler ERC 111A ERC 111A, Red LED, without buzzer 080G3230 ERC 111A, Blue LED, without buzzer 080G3231 Temperature Sensor for Cabinet Temperature Sensor for Temperature Control...
- Page 21 User Guide | ERC 111A Refrigeration Controller Sensor placement Control sensor The control sensor must always be connected and is used for controlling the cut-in and cut-out of the compressor according to the set point. The sensor is also used for the displayed temperature.
- Page 22 Defrost or condenser - CFF refrigerator ERC 111A Comp Control Defrost or condenser - CFF freezer static evaporator ERC 111A Comp Control Condenser NOTE: • Select only one function per input, e.g. defrost or condenser sensor. • Make sure that the accessory you select has a matching connector to the input, e.g. a sensor for input "S2" must have "S2" connector.
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