AKO -16525AN User Manual
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AKO -16525AN User Manual

Advanced temperature controller for cold rooms
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1652H4A02 Ed. 10
AKO-16524A
AKO-16525A
AKO-16525AN
Advanced temperature controller for cold rooms
User manual

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Summary of Contents for AKO AKO-16525AN

  • Page 1 1652H4A02 Ed. 10 AKO-16524A AKO-16525A AKO-16525AN Advanced temperature controller for cold rooms User manual...

  • Page 2: Table Of Contents

    Only qualified personnel should install or perform technical assistance on this product. This product is designed to be used in the applications described in the product manual. AKO Electromecánica gives no guarantee of its ope- ration in any use not foreseen in the manual, and is not responsible for any damage resulting from improper use, configuration, installation or commissioning.

  • Page 3: Presentation

    The AKO-16524A controller includes the CAMM module (AKO- 58500), which, together with the mobile apps AKO CAMM Tool and AKO CAMM Fit (available on the App Store and Google Play), is intended to evaluate the performance of the refrigeration system in detail. These applications provide several indicators on the actual operation of the cold room that allow diagnosing possible design, usage or maintenance problems in the installation.

  • Page 4: Description

    AKO-16524A, AKO-16525A: Bluetooth activated (only with CAMM module). AKO-16525AN : ON: Device registered on the NBIoT network and with a valid licence. OFF: Unable to register on the NBIoT network or the licence has expired.
  • Page 5 When an alarm is in progress, pressing once without holding mutes the acoustic alarm. Pressing for 3 seconds accesses the Set Point setting. Only AKO-16525AN: Pressing the SET and ESC buttons for 3 seconds forces the trans- mission to the cloud via NBIoT connectivity.

  • Page 6: Installation

    -Close the cover (3), tighten the screws (2) and replace the bezels (1). ATTENTION: When drilling the holes for the glands, take care to avoid damaging the internal components. AKO-16525AN: DO NOT DRILL ANY HOLES IN THE TOP OF THE DEVICE.

  • Page 7: Wiring

    Check the available options on the diagram sheet included with your device. The AKO-16523D model has a contactor which allows for the connection of three-phase defrost resistors, a three-phase compressor or three-phase fans, according to your installation’s requirements. Check how to con- nect it on the diagram sheet included with your device.
  • Page 8 1652H4A02 Ed. 10 Installation of the probes To achieve maximum performance from the advanced controller, the correct installation of the probes is key, as they are responsible for calculating the evaporator’s thermal transfer coefficient, evaluating the start and end of the defrosts and diagnosing problems in the evaporator.

  • Page 9: Installation Of The Camm Ako-58500

    Installation of the CAMM AKO-58500 * Insert the CAM AKO-58500 module in the pre-ins- talled base as shown in the picture. In combination with the application for AKO CAM Tool mobile devices, the CAM module provides the device with multiple functions: - Data logging...

  • Page 10: Initial Configuration (Wizard)

    1652H4A02 Ed. 10 Initial configuration (wizard) The first time the unit receives the power supply, it will enter into AS- SISTANT mode. The display will show the message In{ flashing at 0. Step 1: Select the most suitable InI option based on the type of installation to be carried out and press SET.
  • Page 11 1652H4A02 Ed. 10 Registration on akonet.cloud (only AKO-16525AN) In order for the controller to be able to send operation data to akonet.cloud, it must be registered. To do this, go to https://akonet.cloud (requires registration), click on “Add new device” and continue with one of these two methods: •...

  • Page 12: Operation

    1652H4A02 Ed. 10 Operation MESSAGES Pump down malfunction error (stop), the time configured in parameter C20 has been exceeded (see page 18). Only displayed on screen. Pump down malfunction error (start-up), the time configured in parameter C19 has been exceeded (see page 18). Only displayed on screen.
  • Page 13 1652H4A02 Ed. 10 MESSAGES Calibration ongoing, therefore, avoid, as far as possible, opening the cold room during the process. For further information page 14. Flashing with temperature: Configuration has been changed from 1 to 2 evapora- tors or vice versa. SELFDRIVE MODE ALERT MESSAGES (Only shown pressing the Q key) Defrost end error in 1/2 evaporator during the calibration, defrost has not ended due to temperature.
  • Page 14 1652H4A02 Ed. 10 SELFDRIVE mode SELFDRIVE modeIf the SELFDRIVE mode is activated (default configuration), the device periodically evaluates the evaporator’s heat transfer, managing the available resources to maximise it. The defrosts are minimised, adapting to the changing conditions of the cold room, reducing heat input into the refrigerated space, thermal stress in the evaporator and energy consumption.
  • Page 15 1652H4A02 Ed. 10 Cold regulation Solenoid control (COOL Relay) SP+C1 Cold production is regulated by means of opening / closing the solenoid valve. When the temperature in probe S1 reaches the set point (SP) value plus the probe’s differential (C1), the solenoid opens and causes the temperature to drop.
  • Page 16 1652H4A02 Ed. 10 Regulation of cold with two temperature probes (S1 + S3) This requires configuration of digital input 2 as cold room temperature (I20=10). The device regulates the temperature of the cold room taking into account the reading of both probes. Using para- meter C25, the influence of probe S3 is determined in the regulation.
  • Page 17 • By means of the AKONet application. This requires the device to be connected to a Modbus network (see page 37). • By means of the CAMM module and the AKO CAMM tool application. EXAMPLE:...
  • Page 18 1652H4A02 Ed. 10 Pump down function This function foresees problems in the compressor caused by movements of coolant, using a stop/start technique for the installation, controlled via the liquid solenoid, the low pressure switch and the compressor itself. This function is only available for In{ options 2, 5 and 7 and requires the connection of a low pressure switch in digital input 1.
  • Page 19 1652H4A02 Ed. 10 Door management Door management requires configuring one of the digital inputs as “Door contact” (I10 ó r=1). Standard operating mode (CE=0) Door management allows for the installation’s behaviour to be controlled, should the cold room door open through parameters C22 and C23.
  • Page 20 1652H4A02 Ed. 10 Defrost Types of defrost There are 3 possible defrost types, depending on the option selected in the wizard (InI): Electric (InI=1, 2 and 3) (d7=0) Defrost is performed through electrical resistors, supplying the evaporator with heat. The operation of fans in this mode depends on parameter F3;...
  • Page 21 1652H4A02 Ed. 10 Control of defrost in standard mode (CE=0) Max. d1 DEFROST DEFROST DRIP TIME COLD REGULATION FAN START-UP COLD REGULATION DELAY “DEF” MESSAGE SP+C1 Defrost start Defrost will start if: • The time programmed in parameter d0 has elapsed since the start of the last defrost. •...
  • Page 22 1652H4A02 Ed. 10 Control of defrost in SELFDRIVE mode (CE=1) Defrosts in SELFDRIVE mode are not programmed, but rather the device evaluates the operation of the cold room and manages defrosts depending on the needs of the installation. If a drop in the performance of the cold room is detected due to formation of ice in the evaporator, defrost is activated and it is supervised until its completion.
  • Page 23 1652H4A02 Ed. 10 Other defrost parameters (They affect in standard and SELFDRIVE mode) Drip time This is established through parameter d9 and sets the time added at the end of defrost to allow for the removal of surplus water from melted evaporator ice, during which there is no cold regulation. Fan start-up delay This is established through parameter F4 and allows for the possible drops left in the evaporator to freeze before the fans activate, preventing them from being projected into the cold room.
  • Page 24 1652H4A02 Ed. 10 Defrost of a second evaporator This function allows for defrost to be controlled in a second evaporator, provided that defrost is by electric heat, by air or is static. The same type of defrost should be used for the first and second evaporators. This requires configuration of input 2 as a 2nd evaporator probe (l20=8).
  • Page 25 1652H4A02 Ed. 10 Evaporator fans Control of fans in standard mode (CE=0) Fans are controlled through probe 2 (evaporator) and parameters F0 (stop temperature) and F1 (probe differential). If probe 2 is not connected or an error in the probe (E2) is detected, the fans continuously operate without taking into account parameters F0 and F1, but taking the remaining parameters (F2 to F4) into account.
  • Page 26 1652H4A02 Ed. 10 Alarms The device warns the user through an on-screen message, activation of a relay (only if o10=1) and a sound alarm when the criteria programmed in the parameters are met. Maximum / minimum temperature alarm It shows the message “AK” or “AL” when the temperature in probe 1 reaches the value configured in parameters A1 (maximum temperature) and A2 (minimum temperature).
  • Page 27 1652H4A02 Ed. 10 Open door alarm The door has been open for a longer time than defined in parameter A12, the open door alarm is activated. In order to detect the open door, configuration is required of one of the digital inputs as “door contact”...
  • Page 28 1652H4A02 Ed. 10 Alerts The device alerts the user through an on-screen message when an event occurs which requires his/her attention. However, it does not activate the sound alarm or the alarm relay (if active). Defrost finished by time alarm The message Adt is displayed when a defrost has completed due to time-out, if parameter A8=1.
  • Page 29 1652H4A02 Ed. 10 Operation of the auxiliary relays Depending on the controller model, it may have 1 or 2 auxiliary relays. The function of these relays is configurable through the parameters menu. AUX 1 relay • Deactivated (o00=0): It does not carry out any function. •...
  • Page 30 Core Index (Only with CAMM module installed) The Core index is an indicator of the integral efficiency of the cold room store that can be consulted in the AKO CAMM Tool app, available in the App Store and in Google Play.

  • Page 31: Configuration

    1652H4A02 Ed. 10 Configuration Condensed programming menu This allows for the most-used parameters to be quickly configured. Press the SET key for 3 seconds to access it. Condensed programming menu OUT OF IN PROGRAMMING PROGRAMMING 20 sec. Temperature Values Parameters indication 3 sec.
  • Page 32 1652H4A02 Ed. 10 Extended programming menu Use the extended programming menu to configure all of the unit’s parameters in order to adapt it to your installation requirements. Press the SET key for 6 seconds to access it. IMPORTANT: If the password function has been configured as a keypad lock (b10=2), or as an access to parameters block (b10=1), you will be requested to enter the password programmed in PAS when attempting to access either of the two functions.
  • Page 33 1652H4A02 Ed. 10 Parameters Regulation and control Description Values Min. Def. Max. SP Temperature setting (Set Point) ºC/ºF -50 0.0 99 CE SELFDRIVE Mode 0=Deactivated 1= Activated C0 Probes 1 & 2 calibration (Offset) ºC/ºF -4.0 0.0 4.0 C1 Diferencial de la sonda 1 (Histéresis) ºC/ºF 0.1 2.0 20.0 C2 Set Point top locking (it cannot be set above this value)
  • Page 34 1652H4A02 Ed. 10 Defrost Description Values Min. Def. Max. d0 Defrost frequency (Time between 2 starts) d1 Maximum defrost duration (0=defrost deactivated) Min. Type of message during the defrost: 0=Displays the real temperature; 1=Displays the temperature at the start of the defrost;...
  • Page 35 1652H4A02 Ed. 10 Alarms Description Values Min. Def. Max. a0 Configuration of the temperature alarms 0=Relative to SP 1=Absolute a1 Alarm for maximum in probe 1 (It should be higher than the SP) ºC/ºF a2 Alarm for minimum in probe 1 (It should be lower than the SP) ºC/ºF a3 Delay of temperature alarms in the start-up Min.
  • Page 36 1652H4A02 Ed. 10 Inputs and outputs Description Values Min. Def. Max. Connected probes 1=Probe 1 (Cold room) 2=Probe 1 (Cold room) + Probe 2 (Evaporator) Configuration of digital input 1 0= Deactivated 1=Door contact 2=External alarm 3=Severe external alarm 4=Change of SP 5=Remote defrost 6=Defrost block 7= Low pressure switch 8=Remote Stand-by...

  • Page 37: Connectivity

    The controllers are equipped with a port for connection of RS485 (MODBUS) data, which allows for remote manage- ment of these using a AKO-5010, AKO-5025, AKO-5041 or AKO-5051 gateway. The MODBUS address is factory-set and is indicated on the rating plate located on the left side of the controller. This address must be different for each unit within the same network.

  • Page 38: Technical Specifications

    Resolution, setting and differential....................... 0.1 ºC Thermometric precision..........................±1 ºC Loading tolerance of the NTC probe at 25 °C .....................±0.4 ºC Input for NTC probe ..........................AKO-14901 Working ambient temperature ......................-10 ºC to 50 ºC Storage ambient temperature ......................-30 ºC to 60 ºC Protection degree ............................

  • Page 39: Troubleshooting

    SELFDRIVE mode. open more than necessary Simplified declaration of conformity AKO Electromecánica S.A.L. hereby declares that the radioelectric device types AKO-16524A and AKO-16525AN (Advanced temperature controller for cold rooms with communication) conform to the provisions set forth by Direc- tive 2014/53/EU.
  • Page 40 AKO ELECTROMECÁNICA , S.A.L. Avda. Roquetes, 30-38 08812 • Sant Pere de Ribes. Barcelona • Spain www.ako.com We reserve the right to supply materials that might vary slightly to those described in our Technical Sheets. Updated information is available on our website.

This manual is also suitable for:

Ako-16525aAko-16524a

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