AKO 1652H4A11 Temperature Controller User Guide

AKO 1652H4A11 Temperature Controller User Guide

Warnings

⚠ -If the equipment is used without adhering to the manufacturer’s instructions, the device safety requirements could be compromised. Only probes supplied by AKO must be used for the unit to operate correctly.
-From -40 ºC to +20 °C, if the NTC probe is extended to 1000 m with at least a 0.5 mm2 cable, the maximum deviation will be 0.25 ºC (cable for probe extension ref. AKO-15586. Earth the cable mesh at one end only).
-Only NTC type probes supplied by AKO must be used for the appliance to operate correctly.
-It must be installed in a place protected from vibrations, water and corrosive gases, where the ambient temperature does not exceed the value indicated in the technical data.
-For the reading to be correct, the probe must be used in a place without thermal influences apart from the temperature you want to measure or control.
-IP65 protection degree is only valid with the protection cover closed.
-The IP65 protection degree is only valid if the cables enter the device through a tube for electric conduits + gland with IP65 or above. The size of the glands must be suitable for the diameter of the tube used.
-Do not spray the unit directly with high-pressure hoses, as this could damage it.
-This device must be installed in a location where a minimum distance of 20 cm to the human body can be guaranteed, in order to ensure compliance with standards on human exposure to electromagnetic fields.
-The AKO-16525AN device must NEVER be operating without the internal antenna. This device can be fitted with any antenna provided it has a gain of less than 9.2 dBi and there is a minimum distance of more than 20 cm between it and any person or animal. Any type of antenna used with this device must comply with the limits established for the radio interface in Member States and the following documents: Commission Decision 2010/267/EU of 6 May 2010, ECC Decision (09)03 of 30 October 2009 and CEPT Report 30 of 30 October 2009.

Maintenance

Clean the surface of the unit with a soft cloth, water and soap. Do not use abrasive detergents, petrol, alcohol or solvents, as this might damage the unit.

Wiring

⚠ Always disconnect the power supply to do the wiring. The probes and their cables must NEVER be installed in a conduit together with power, control or power supply cables. For disconnection, the power supply circuit must be equipped with at least a 2 A, 230 V switch, located near the device. The power supply cable shall be of the H05VV-F or NYM 1×16/3 type. The cross-section to be used will depend on the local regulations in force, but must never be less than 1.5 mm2. Cables for relay or contactor outputs must have a cross-section of 2.5 mm2 and allow working temperatures equal to or over 70 °C and must be installed with as little bending as possible. The 120/230 V~ wiring area must be kept clear of any other external element. The wiring to be undertaken depends on the option selected in the initial configuration wizard (See page 23). Use the appropriate diagram based on the option selected. Check the available options on the diagram sheet included with your device.
IMPORTANT:

• The AUXILIARY relays are programmable, and their operation depends on the configuration.
• The function of the digital inputs depends on the configuration.
• The recommended currents and powers are the maximum working currents and powers.

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.

Description

Keypad

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.

Material included
-4 mm hermetic evaporator probe, 1.5 m of cable.
-Ambient probe
-1 mounting clip for 10-13 mm coil
-1 mounting clip for 14-18 mm coil
-1 mounting clip for 19-21 mm coil
-1 mounting clip for 22-25 mm coil

Location of the ambient probe
The probe should be located in a place that does not directly receive the flow of cold air from the evaporator. Preferably in its air aspiration area.

Location of the evaporator probe
The probe must be located as near as possible to the inlet of refrigerant from the evaporator (close to the expansion valve) in the finned area. In certain evaporators, for example cubic ones, this inlet may be located on the front part of the battery, just behind the fan. If defrost is done by electric heat, the probe must be located far away from them and, if possible, in the area of the evaporator where defrosting is slower, in other words, in the last area to defrost. If the two conditions are not possible, the best possible compromise must be looked for.

Initial configuration (wizard)

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:

• Enter the serial number (S/N) and validation code / IMEI that appear on the tag and press “Search”.
• Capture the QR code that appears on the tag using the option (requires having a camera on your PC, tablet or mobile phone).

These data are found on the tag on the right hand side of the controller. More information can be found in the akonet.cloud user guide at: “https://enhelpakonet.ako.com/” To access akonet.cloud, enter this address in your browser (the use of Google Chrome is recommended): https://akonet.cloud.

⚠ Before activating the device, make sure that there is enough reception at the installation location. Activated devices may not be returned.

Forcing transmission

When the steps of the configuration wizard and the registration process are completed in akonet.cloud, you must force a first transmission to verify the level of reception:
Press and hold the ESC and SET keys for 3 seconds.
After a moment, the display shows the quality of the NBIoT signal received:

⚠ The controller does not start transmitting data to akonet.cloud until the first transmission is forced.

Operation

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. Operation of the evaporate fans is optimised taking into account the compressor status, evaporate temperature, frost level, opening of the door, etc. The control function of the drainage resistor minimises its activation (moments before starting a defrost), thereby reducing energy consumption. To achieve correct operation of the SELFDRIVE mode, it is very important for the probes to be correctly installed, as described on page 22.

Calibration
During the first hours of operation, the device performs two calibrations automatically, during which the display shows the CAL.message. Calibration may take several hours and include several refrigeration and defrost cycles.

IMPORTANT:
⚠ During the calibration processes, the following should be avoided:
-Opening the cold room door
-Turning the controller off or putting it on stand-by
-Changing controller parameters, including the set point
⚠ While the calibration process is active:
-Manual defrost cannot be activated (H key)
-The continuous cycle cannot be activated
-The set point change function cannot be activated
If calibration cannot be performed, or if an important part of the installation is replaced (compressor, evaporator, etc.) it is advisable to perform a manual calibration. It is also recommended (not essential) to perform a manual calibration, once the installation has completed its commissioning, with a load inside it and when its operating temperature has been stabilised, after several days of operation, in this way calibration is optimal. In the event of changing the set point or hysteresis, the device performs a calibration again automatically, except if the set point change is made using the “set point change mode” function. To perform a manual calibration, access the parameter menu (See page 29) and follow the sequence indicated below:

• Access parameter b30
• A security code is requested, enter code 63
• Using keys ▲ and ▼ select option 1 and press SET

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.

Parameters

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.
(i) 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. If the entered password is not correct, the unit will go back to showing the temperature.
IMPORTANT: Certain parameters or menus may not be visible depending on the configuration of the rest of the parameters.

Extended programming menu

Parameters

Technical specifications

Troubleshooting

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 Directive 2014/53/EU. The full text of the EU conformity declaration is available at the following internet addres: http://help.ako.com/manuales/declaracion-ue-de- conformidad

AKO ELECTROMECÁNICA , S.A.
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.

References

• AKONET.Cloud
• akonet.cloud help
• Sign in - Google Accounts
• Aide d' akonet.cloud

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