Installation Guide for Danfoss models including: AK-CC55, 84B3240, 84B3241, 84B3247, 84B3248, 84B3249, 84B3250, 84B3251, 84B3252, 84B3253, AK-CC55 Case Room Controller EEV Single Coil, AK-CC55, Case Room Controller EEV Single Coil, Room Controller EEV Single Coil, Controller EEV Single Coil, EEV Single Coil, Single Coil
Technical support for supermarket refrigeration system technicians | Danfoss
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DocumentDocumentInstallation Guide Case/room controller (EEV) Type AK-CC55 Single Coil Identification Dimensions 084B4082 Principle 084B4083 113 084R8053 AN294432763974en-000501 Danfoss 84B3240 180 60 Danfoss 84B3241 © Danfoss | Climate Solutions | 2021.12 AN294432763974en-000501 | 1 Danfoss 84B8271 The controller is provided with labels from the factory indicating a generic application. When selecting the required application, specific labels are provided so that you can mount the relevant one. Danfoss 84B3247 0 10 V/ PWM 1. P 13 2 40 41 42 5V s Pe 43 44 45 46 47 48 49 50 51 52 53 54 60 61 70 71 S2 S3 S4 S5 S6 DI1/ DI2 AO1 AI7 1 83 84 85 B- A+ MODBUS 115 230 V AC LN 123 AKV 789 Alarm 10 11 12 Comp. 13 14 Defrost 15 16 17 Light 18 19 20 Fan 21 22 DI3 115 230 V AC 30 31 0 10 V/ PWM 2. P 13 2 40 41 42 5V s Pe 43 44 45 46 47 48 49 50 51 52 53 54 60 61 70 71 S2 S3 S4 S5 S6 DI1/ DI2 AO1 AI7 2 83 84 85 B- A+ MODBUS 115 230 V AC LN 123 AKV 789 Railheat 10 11 12 Comp. 13 14 Defrost 15 16 17 Light 18 19 20 Fan 21 22 DI3 115 230 V AC 30 31 0 10 V/ PWM 3. P 13 2 40 41 42 5V s Pe 43 44 45 46 47 48 49 50 51 52 53 54 60 61 70 71 S2 S3 S4 S5 S6 DI1/ DI2 AO1 AI7 3 83 84 85 B- A+ MODBUS 115 230 V AC LN 123 AKV 789 Alarm 10 11 12 Comp. 13 14 Defrost 15 16 17 Railheat 18 19 20 Fan 21 22 DI3 115 230 V AC 30 31 Danfoss 84B3248 Danfoss 84B3249 2 | AN294432763974en-000501 © Danfoss | Climate Solutions | 2021.12 Danfoss 84B3250 0 10 V/ PWM 4. P 13 2 40 41 42 5V s Pe 43 44 45 46 47 48 49 50 51 52 53 54 60 61 70 71 S2 S3 S4 S5 S6 DI1/ DI2 AO1 AI7 4 83 84 85 B- A+ MODBUS 115 230 V AC LN 123 AKV 789 Alarm 10 11 12 Railheat Defrost 13 14 15 16 17 Light 18 19 20 Fan 21 22 DI3 115 230 V AC 30 31 0 10 V/ PWM 5. P 13 2 40 41 42 5V s Pe 43 44 45 46 47 48 49 50 51 52 53 54 60 61 70 71 S2 S3 S4 S5 S6 DI1/ DI2 AO1 AI7 5 83 84 85 B- A+ MODBUS 115 230 V AC LN 123 AKV 789 Suction 10 11 12 Drain 13 14 HG 15 16 17 Light 18 19 20 Fan 21 22 DI3 115 230 V AC 30 31 0 10 V/ PWM 6. P 13 2 40 41 42 5V s Pe 43 44 45 46 47 48 49 50 51 52 53 54 60 61 70 71 S2 S3 S4 S5 S3B DI1/ DI2 AO1 AI7 6 83 84 85 B- A+ MODBUS 115 230 V AC LN 123 AKV 789 Alarm 10 11 12 Railheat Defrost 13 14 15 16 17 Light 18 19 20 Fan 21 22 DI3 115 230 V AC 30 31 Danfoss 84B3251 Danfoss 84B3252 © Danfoss | Climate Solutions | 2021.12 AN294432763974en-000501 | 3 Danfoss 84B3253 0 10 V/ PWM . P 13 2 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 60 61 70 71 5V s Pe S2 S3 S4 S5 S3B S5B DI2 AO1 7 83 84 85 B- A+ MODBUS 115 230 V AC LN 123 AKV 789 Alarm 10 11 12 Defrost B Defrost A 13 14 15 16 17 Light 18 19 20 Fan 21 22 DI3 115 230 V AC 30 31 B A 0 10 V/ PWM 8. P 13 2 U RH 0 10 40 41 42 5V s Pe 43 44 45 46 47 48 49 50 51 52 53 54 60 61 70 71 S2 S3 S4 S5 S6 DI1/ DI2 AO1 AI7 8 83 84 85 B- A+ MODBUS 115 230 V AC LN 123 AKV 789 Alarm 10 11 12 Humidity Defrost 13 14 15 16 17 Light 18 19 20 Fan 21 22 DI3 115 230 V AC 30 31 0 10 V/ PWM 9. P 13 2 40 41 42 5V s Pe 43 44 45 46 47 48 49 50 51 52 53 54 60 61 70 71 S2 S3 S4 S5 S6 DI1/ DI2 AO1 AI7 9 83 84 85 B- A+ MODBUS 115 230 V AC LN 123 AKV 789 DO2 10 11 12 DO3 DO4 DO5 DO6 13 14 15 16 17 18 19 20 21 22 Custom set-up DI3 115 230 V AC 30 31 Danfoss 84B3254 Danfoss 84B3266 4 | AN294432763974en-000501 © Danfoss | Climate Solutions | 2021.12 Data communication Important AKV info AKS 32R info 230 V AC (115 AC) AKS 32R out Black Brown Blue Coordinated defrost via cable connections External display AK-UI55 © Danfoss | Climate Solutions | 2021.12 Danfoss 84B8239 It is important that the installation of the data communication cable is performed correctly with sufficient distance to high voltage cables. 230 V or 115 V AC coil Max. 0.5 A The signal from one pressure transmitter can be received by up to 10 controllers. There must not be a significant pressure drop from the pressure transmitter's position in the suction line to the individual evaporators. Max. 10 The following controllers can be connected in this way: EKC 204A, AK-CC 210, AK-CC 250, AK-CC 450, AK-CC 550 and AK-CC55. Refrigeration is resumed at the same time when all controllers have terminated defrost. Display 084B4075 / 084B4076 / 084B4077 Cable 3 m: 084B4078 Cable 6 m: 084B4079 (L: Max. 100 m) AN294432763974en-000501 | 5 Technical data Electrical specifications Electrical data Supply voltage AC [V] Power consumption [VA] Power ON indicator Electrical cable dimensioning [mm] Value 115 V / 230 V, 50/60 Hz 5 VA Green LED Max. 1.5 mm multi-core cable Sensor and measuring data Sensor and measuring data Sensor S2, S6 Sensor S3, S4, S5 Temperature measuring accuracy Pt1000 sensor specification Pe measuring RH measuring Value Pt 1000 AKS11 Pt 1000 AKS11 PTC 1000 EKS111 NTC5K EKS211 NTC10K EKS221 sensor (All 3 must be of the same type) Pt1000: -60 120 °C. ±0.5 K PTC1000: -60 80 °C. ±0.5 K NTC5K: -40 80 °C. ±1.0 K NTC10K: -40 120 °C. ±1.0 K ±0.3 K at 0 °C ±0.005 K per degree AKS 32R Ratiometric pressure transmitter: 10 90% 0 10 V Ri > 10K ohm Accuracy +/- 0,3% FS Function data Function data Display External display, AK-CC55 Single Coil UI External display, AK-CC55 Single Coil External display connection Max. display cable length [m] Data communication built-in Data communication option Clock battery backup power reserve Mounting Value LED 3 digit 1 external display 2 external displays RJ12 100 m MODBUS AK-OB55 Lon RS485 module (Not AK-CC55 Compact) 4 days DIN rail Environmental conditions Environmental conditions Value Ambient temperature range, operating [°C] 0 55 °C Ambient temperature range, transport [°C] -40 70 °C Enclosure rating IP IP20 Relative humidity range [%] 20 80%, non-condensing Shocks/Vibrations No shocks and vibrations allowed Input and output relay specifications Input and Input/ output relay output specifications Digital input DI1 DI2 Digital input Solid state output DI3 DO1 (for AKV coil) Relays DO2 DO3 DO4 DO5 DO6 Analogue AO1 output/ PWM Description Signal from dry contact functions Requirements to contacts: Gold plating Cable length must be max. 15 m Use auxiliary relays when the cable is longer Open loop: 12 V (SELV) Contact 3.5 mA 115 V / 230 V AC 115V / 230 V AC Max. 0.5 A Max. 1 x 20 W AKV for 115 V AC 2 x 20 W AKV for 230 V AC Note: 2 EC coils are not supported. 115 V / 230 V AC Load max.: CE. 8 (6)A UL. 8A res. 3FLA 18LRA Load min.: 1VA Inrush: DO5 DO6 TV-5 80A 0 / 10 V Pulse Width Modulated (PWM) max. 15 mA. 0 10 V variable, max. 2 mA NOTE: · DO2 to DO6 are 16 A relays. · Max. load must be observed. · DO5 / DO6 is recommended for load with high inrush current e.g. EC Fan and LED light. · All relays are sealed for use with flammable refrigerant like Propane R290. · Compliance with EN 60 335-2-89: 2010 Annex BB. 6 | AN294432763974en-000501 © Danfoss | Climate Solutions | 2021.12 Electric noise Cables for sensors, low voltage DI inputs and data communication must be kept separate from other electric cables: - Use separate cable trays - Keep a distance between cables of at least 10 cm - Long cables at the low voltage DI input should be avoided Installation considerations Accidental damage, poor installation, or site conditions, can give rise to malfunctions of the control system, and ultimately lead to a plant breakdown. Every possible safeguard is incorporated into our products to prevent this. However, a wrong installation could still present problems. Electronic controls are no substitute for normal, good engineering practice. Danfoss will not be responsible for any goods, or plant components, damaged as a result of the above defects. It is the installer's responsibility to check the installation thoroughly, and to fit the necessary safety devices. Special reference is made to the necessity of signals to the controller when the compressor is stopped and to the need of liquid receivers before the compressors. Your local Danfoss agent will be pleased to assist with further advice, etc. Replacing AK-CC 550A with AK-CC55 Be aware when exchanging an AK-CC 550A controller with a new AK-CC55 controller - new wiring principles! AK-CC 550A AK-CC55 · Pressure sensor has new connection signal and ground are switched · SPDT relays have a new wiring scheme NO and NC terminals are switched (e.g. defrost heater on when it should be off ) C NC NO · Modbus has new connection scheme (A,B and screen) C NO NC · New AK-UI55 displays and cables with 6 wires vs. 4 wires for EKA 16x AK-CC55 does not support two EEC coils connected to one AKV output. Pressure transmitter can be shared between AK-CC 550 and AK-CC55. DI2 defrost coordination can be wired between AK-CC 550 and AK-CC55. © Danfoss | Climate Solutions | 2021.12 AN294432763974en-000501 | 7 Operation with setting display Display AK-UI55 Set The values will be shown with three digits, and with a setting you can determine whether the temperature is to be shown in °C or in °F. Lights up in event of: Energy optimization Cooling Defrosting Fan operation Lights in event of alarm -- press on alarm button -- alarm relay is reset -- alarm code displayed -- e.g. "A1" Alarm codes are shown on page 18. Long press (3 seconds) gives access to the information menu "InF". Up arrow / Down arrow / Arrow to left: Navigation in the menu and setting of values. Long press (3 seconds) will start a defrost, "-d-" is shown in the display. Ongoing defrosting can be stopped by a long press. SET: Long press (3 seconds) gives access to the "SEt" menu. If the operation is locked with a password, "PS" is shown. Enter the code. Shows the setting for a chosen parameter / saves a changed setting. Short press gives access to entering of the thermostat's cut-out limit. The display can give the following messages: -d- Defrost is in progress Err The temperature cannot be displayed due to a sensor error Err1 The display cannot load data from the controller. Disconnect and then reconnect the display Err2 Lost display communication ALA The alarm button is activated. The first alarm code is then shown - - - At top position of the menu or when max. value has been reached, the three dashes are shown in the top of the display - - - At bottom position of menu or when min. value has been reached, the three dashes are shown in the bottom of the display Loc The configuration is locked. Unlock by pressing (for 3 seconds) on the `up arrow' and `down arrow' simultaneously UnL The configuration is unlocked - - - The parameter has reached min. or max. limit PS A password is required for access to the menu Fan Appliance cleaning has been initiated. The fans are running OFF Appliance cleaning is activated and the appliance can now be cleaned OFF The main switch is set to Off SEr The main switch is set to service / manual operation CO Flashes: Will display in event of a refrigerant leakage alarm, but only if the refrigerant is set up for CO Factory setting If you need to return to the factory-set values, do the following: - Cut off the supply voltage to the controller - Keep up "" and down "" arrow buttons depressed at the same time as you reconnect the supply voltage - When FAc is shown in the display, select "yes". 8 | AN294432763974en-000501 © Danfoss | Climate Solutions | 2021.12 84B8279 Read input status Parameter grouping at display operation < < SET Set (PS) cFg SET r-A-c-d-n-F-t-h-o-p-q-u-< (Return) Menu groups See also the following pages. SET button, 3 s: Configuration settings PS: Password (if any) r12 Main switch o61 Application o03 MODBUS address r89 Food type r00 Cut-out temperature r15 Ther. sensor S4 % r61 Ther. sensor S4% night A36 Alarm sensor S4% o17 Display air S4% o30 Refrigerant type o20 Min. transmitter range o21 Max. transmitter range d01 Defrost method d03 Defrost interval d10 Defrost sensor d04 Max. defrost time d02 Defrost stop temperature < (Return) Danfoss 84B8272 < Info button, 3 s: Information for service use Inf StA SET See control state message App SET See selected application in SET out SET buS SET SoF SET < (Return) MODBUS quality See SW version Output status When you want info on a relay output, the dot will show whether the relay is activated (energized) for, e.g.: do4 = not activated do.4 = activated do1 Akv do2 do3 do4 do5 do6 Ao1 (Return) ****** Read output status di1/ AI7 ** di2 ** di3 ** AI1 PE AI2 S2 AI3 S3 AI4 S4 AI5 S5 AI6 ** < (Return) *) The output's function. (Determined at configuration). The DOs and AOs can also be forced controlled from this menu, when r12 Main switch has been set in position "service". Forced control of a function can also be performed in codes q11 to q27. **) The input's function. (Determined at configuration). Danfoss Get a good start With the following procedure you can start regulation very quickly: 1. Open parameter r12 and stop the regulation (in a new and not previously set unit, r12 will already be set to 0 which means stopped regulation) 2. Select application based on the wiring diagrams on pages 2-4 3. Open parameter o61 and set the application number 4. For network. Set the address in o03 5. Then select a set of presets from the "Food type" help table 6. Open parameter r89 and set the number for the array of presettings. The few selected settings will now be transferred to the menu 7. Set the desired cut-out temperature r00 8. Set the weighted thermostat air temperature between S4 and S3 sensor r15 9. Set the weighted thermostat air temperature between S4 and S3 during night operation r61 10. Set the weighted alarm air temperature between S4 and S3 A36 11. Set the weighted display readout between S4 and S3 o17 12. Select refrigerant via parameter o30 13. Set the pressure transmitter min. and max. range via parameter o20 and o21 14. Set the desired defrost method in d01 15. Set the interval time between defrost starts in d03 16. Set the desired defrost sensor in d10 17. Set the maximum defrost time in d04 18. Set the defrost stop temperature in d02 19. Open parameter r12 and start the regulation 20. Go through the parameter list and change the factory values where needed. 21. Get the controller up and running on network: · MODBUS: Activate scan function in system unit · If another data communication card is used in the controller: - Lon RS485: Activate the function o04 - Ethernet: Use the MAC address Food type Setting of presettings (r89). After 1 2 3 4 5 setting 1-5, setting is returned to 0. Vege- Meat/ Frozen Ice Food type = tables Milk fish food cream Temperature (r00) 8 °C 0 °C -2 °C -20 °C -24 °C Max. temp. setting (r02) 10 °C 4 °C 2 °C -16 °C -20 °C Min. temp. setting (r03) 4 °C -4 °C -6 °C -24 °C -28 °C Upper alarm limit (A13) 14 °C 8 °C 8 °C -15 °C -15 °C Lower alarm limit (A14) 0 °C -5 °C -5 °C -30 °C -30 °C Upper alarm limit for S6 (A22) 14 °C 8 °C 8 °C -15 °C -15 °C Lower alarm limit for S6 (A23) 0 °C -5 °C -5 °C -30 °C -30 °C © Danfoss | Climate Solutions | 2021.12 AN294432763974en-000501 | 9 Fault message In an error situation the alarm LED on the front will be on and the alarm relay will be activated (depending on priority). If you push the alarm button for 3 seconds you can see the alarm report in the display. (Alarm priorities can be changed. See the User Guide.) Here are the messages that may appear: Code Alarm text Description E01 Hardware failure The controller has a hardware failure E06 Clock lost time Clock has lost valid time E20 Pe Evap. pressure A - Sensor error Sensor signal is out of range. Please check the sensor for correct operation E24 S2 Gas outlet A - Sensor error Sensor signal is out of range. Please check the sensor for correct operation E25 S3 Air ON evap. A - Sensor error Sensor signal is out of range. Please check the sensor for correct operation E26 S4 Air OFF evap. A - Sensor error Sensor signal is out of range. Please check the sensor for correct operation E27 S5 Evaporator A - Sensor error Sensor signal is out of range. Please check the sensor for correct operation E28 S6 product temp. A - Sensor error Sensor signal is out of range. Please check the sensor for correct operation E34 S3 Air ON evap. B - Sensor error Sensor signal is out of range. Please check the sensor for correct operation E37 S5 Evaporator B - Sensor error Sensor signal is out of range. Please check the sensor for correct operation E59 Humidity sensor - Sensor error Sensor signal is out of range. Please check the sensor for correct operation A01 High temperature alarm A The alarm temperature has been above the max alarm limit for a longer time period than the set alarm delay. A02 Low temperature alarm A The alarm temperature has been below the min alarm limit for a longer time period than the set alarm delay. A04 Door open alarm The door has been open for a too long time A05 Max defrost hold time exceeded The controller has been waiting longer time than permitted after a co-ordinated defrost. A11 Refrigerant not selected The refrigerant has not been selected hence control can not be initiated A13 S6 high product temperature A The S6 Product temperature has been above the max alarm limit for a longer time period than the set alarm delay. A14 S6 low product temperature A The S6 Product temperature has been below the min alarm limit for a longer time period than the set alarm delay. A15 DI alarm 1 Alarm signal from digital input signal A16 DI alarm 2 Alarm signal from digital input signal A45 Main switch set OFF The controller manin switch has been set to either Stop or Manaual control. Alternatively a digital input set up for "main switch" function, has stopped control A59 Case in cleaning mode A case cleaning operation has been started on a case A70 High temperature alarm B The alarm temperature has been above the max alarm limit for a longer time period than the set alarm delay. A71 Low temperature alarm B The alarm temperature has been below the min alarm limit for a longer time period than the set alarm delay. AA2 CO2 leak detected CO2 is leaking from the refrigerantion system AA3 Refrigerant leak detected Refrigerant is leaking from the refrigeration system a02 High humidity alarm The humidity level is too high a03 Low humidity alarm The humidity level is too low a04 Wrong IO configuration Inputs and outputs have not been configured correctly X02 Evaporator is icing up The adaptive defrost function has detected heavy ice formation on evaporator. X03 Flash gas detected The adaptive defrost function has detected heavy flash gas in front of injection valve Z01 Max defrost time exceeded A The last defrost cycle has stopped on time instead of set temperature A34 Fan alarm Alarm from digital input monitoring function A43 Valve driver alarm Alarm from digital input monitoring function Data communication: The importance of individual alarms can be defined with a setting. The setting must be carried out in the group "Alarm destinations" Additional information not relevant for safe installation and use can be found on Danfoss Store: For more detailed information, please see the respective User Guide. 10 | AN294432763974en-000501 © Danfoss | Climate Solutions | 2021.12Danfoss A/S GPL Ghostscript 9.55.0