AKO-555244 Alarm Centre Trapped Person Gas and Temperature User Manual

June 27, 2024
AKO

AKO-555244 Alarm Centre Trapped Person Gas and Temperature User Manual

AKO Electromecánica thanks you and congratulates you on the purchase of our product, the development and manufacture of which involved the most innovative technologies, as well as rigorous production and quality control processes. Our commitment to achieving customer satisfaction and our continuous efforts to improve day by day are confirmed by the various quality certificates obtained.
This is a high performance, technologically advanced product. Its operation and the final performance achieved will depend, to a great extent, on correct planning, installation, configuration and commissioning. Please read this manual carefully before proceeding to install it and respect
the instructions in the manual at all times.
Only qualified personnel may install the product or provide technical support.
This product has been developed for use in the applications described in the manual. AKO Electromecánica does not guarantee its operation in any use not foreseen in this document and accepts no liability in the case of damage of any type which may result from incorrect use, configuration, installation or commissioning.
Complying with and enforcing the regulations applying to installations where our products are destined to be used is the responsibility of the
installer and the customer. AKO Electromecánica accepts no liability for damage which may occur due to failure to comply with these regulations. Rigorously follow the instructions described in this manual. In order to extend the lifetime of our products to the maximum, the following points must be observed:
Do not expose electronic equipment to dust, dirt, water, rain, moisture, high temperatures, chemical agents or corrosive substances of any type.
Do not subject equipment to knocks or vibrations or attempt to handle them in any way differently to that indicated in the manual.
Do not under any circumstances exceed the specifications and limitations indicated in the manual. Respect the indicated environmental conditions for operation and storage at all times.
During installation and on completion of this, avoid the presence of loose, broken or unprotected cables or cables in poor condition.
These may constitute a risk for the equipment and its users.
AKO Electromecánica reserves the right to make any modification to the documentation and the product without prior notification.

Versions and references

MODEL DESCRIPTION POWER SUPPLY
AKO-555244 Alarm centre for detectors / transmitters / trapped person
pushbuttons/ extraction pushbuttons 90 – 240 V~50/60 Hz
AKO-55326 Trapped person luminous pushbutton
AKO-55327 Extraction luminous pushbutton
Universal transmitter
AKO-575400 **R-23 / R-32 / R-125 / R-134a / R-404A / R-407A / R-407F
/ R-410A / R-448A / R-449A / R-452A / R-455A / R-513A**
*(R-450A / R-442A / R-454A / R-454c / R-1234yf / R-1234ze)
Universal transmitter with NBIoT communication
AKO-575400N **R-23 / R-32 / R-125 / R-134a / R-404A / R-407A / R-407F
/ R-410A / R-448A / R-449A / R-452A / R-455A / R-513A**
*(R-450A / R-442A / R-454A / R-454c / R-1234yf / R-1234ze)
Universal transmitter with NBIoT communication and external
antenna
AKO-575400NE **R-23 / R-32 / R-125 / R-134a / R-404A / R-407A / R-407F
/ R-410A / R-448A / R-449A / R-452A / R-455A / R-513A** 12-30 Vdc
*(R-450A / R-442A / R-454A / R-454c / R-1234yf / R-1234ze)
AKO-575744 R-744 (CO 2) gas transmitter
AKO-575744N R-744 (CO 2) gas transmitter with **NBIoT
communication**
AKO-575744NR R-744 (CO 2) gas transmitter with **NBIoT
communication**
(Includes external adapter from 230 Vac to 15 Vcc)
AKO-57613 R-717 (NH3 / ammonia)
R-134a, R-22, R-404A, R-407A, R-407C, R-407F, R-409A, R-408A,
AKO-57614 R-410A, R-422A, R-422D, R-424A, R-434A, R-442A, R-448A,
R-449A,
R-450A, R-452A, R-453A, R-507A, R-513A
AKO-58120 Protector for pushbutton / detector
AKO-58110 Calibration tool
AKO-58010 Optional battery*

AKO-58120
AKO-58110
AKO-58010

If installing the trapped person in cold room store pushbutton, it’s essential to install the optional AKO58010 battery to meet EN-378-1:2016 and RSIF (RD552:2019) standards. 

Cautions

  • If the device is used without following the manufacturer’s instructions, it may fail to meet its safety requirements. Only probes supplied by AKO must be used for the unit to operate correctly.
    From -40 °C to +20 °C, if the NTC sensor is extended to 1000 m with at least a 0.5 mm2cable, the maximum deviation will be 0.25 °C (cable for sensor extension ref. AKO-15586. Earth the cable mesh at one end only).

  • Only NTC probes supplied by AKO should be used for the appliance to operate correctly.

  • The product should 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 sensor should be used in a place without heat influences apart from the temperature you want to measure or control.
    The IP65 protection degree is only valid with the protection cover closed.

  • The IP65 protection degree is only valid if the cables enter the device using a tube for electric conductions + gland with IP65 or above. The gland should be the right size for the diameter of the tube used.

  • Do not spray the unit directly with high-pressure hoses, as this could damage it.

  • The centre should be installed in a monitored area, where it is guaranteed that people able to alert to the presence of alarms will be present.

  • Neither the alarm nor the gas transmitter / detector are suitable for areas classified as potentially explosive.

  • Transmitters / detectors monitor a point and not an area. If the gas leak does not reach the sensor, or the level of concentration in that point does not reach the foreseen values according to the type of gas, no alarm will be activated.

  • Transmitters / detectors measure gas concentration at a given point. If the gas leak does not reach the transmitter / detector, the alarm will not be activated.

  • Transmitters / detectors cannot supervise areas. If perimeter supervision is required, several transmitters / detectors should be installed surrounding the area to be supervised.

  • Thoroughly studying transmitters’ / detectors’ location is recommended, bearing in mind the areas most vulnerable to suffering leaks, the type of gas used, the size and shape of the room, air flows, maintenance work, etc.

Working conditions:

  • Avoid handling refrigerant gases near the transmitter / detector.
  • Do not paint the transmitter / detector or place it near solvents or paints.
  • Exposure to acetone vapours may generate false alarms. The transmitter / detector should be installed away from: Smoke outlets located in confined spaces or from engines, generators or motorised machinery (fork-lift trucks, etc.). Particularly damp areas or areas with strong ventilation.

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.

The EN-378 and F-GAS international standards require that correct transmitter / detector functioning be checked at least once per year. Review what current local regulations specify for these cases. Consult the appropriate verification method in the transmitter / detector manual. Always ensure that you comply with current local regulations.

Description

  1. Visual alarm
  2. Audible alarm
  3. Display
  4. Keypad

Constant green : Trapped person pushbutton  connected.
Quick-flashing red : Malfunction / wiring fault in pushbutton.
Slow-flashing red : Pushbutton not detected or disconnected.
Constant red : Trapped person alarm active.
Constant green : Gas transmitter / detector connected.
Flashing green: Gas pre-alarm / alarm saved.
Quick-flashing red : Malfunction / Wiring fault in transmitter / detector.
Slow-flashing red : Transmitter / detector not detected or disconnected.
Constant red : Gas pre-alarm / alarm active.
Flashing red : Gas alarm disabled for battery work.
Scheduled ventilation cycle active.
Toggle ventilation on / off.
Pressing for 3 seconds activates / deactivates Set Hold function.
Pressing for 6 seconds activates / deactivates Maintenance mode.
Pressing for 3 seconds activates / deactivates scheduled ventilation cycle.
Steady: Ventilation is activated through  programming or forced.
Blinking: Ventilation should be active according to programming, but its stop has been forced.
Constant green : One of the digital inputs has been configured as an open door alarm.
Flashing red : Open cold room door alarm
Gas alarm muted.
Temperature indicated in degrees Celsius.
Steady: Set Hold mode active.
Blinking: Maintenance mode active.
Battery connected
Pressing for 6 seconds accesses the programming menu.
For gas alarm, pressing briefly silences the alarm tone.
Trapped person alarms cannot be silenced. Pressing for 1 second clears saved gas alarms.
Pressing for 3 seconds reactivates short-circuited inputs (in error state).

Installation

  • Remove the bezels (1)
  • Make a 1/4 turn of the screws (2) anti-clockwise and open the door (3).
  • Install the necessary glands (4 / 5) by drilling holes in the points indicated on the box.
  • Mark and make the holes in the wall with the aid of the template included.
  • Fix the device to the wall. If it is a brick wall, use the screws and plugs supplied; if the wall is made of sheet metal (cold room store), use the screws provided without plugs (6).
  • If installing the optional AKO-58010 battery, connect it as shown in the figure (7)
  • Wire the device by following the recommendations indicated on pagepage 14.
  • Close the cover (3), tighten the screws (2) and replace the bezels (1).

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 section to be used will depend on current local regulations, but should never be less than 1.5 mm2 . Cables for relay or contactor outputs should have a section of 2.5 mm2 , allow working temperatures equal to or over 70ºC, and 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 options selected in the initial configuration wizard (See page 15).
Check the enclosed schematic and the defined configuration before wiring.

AKO-55327 extraction pushbutton
H.E. pushbutton AKO-55326

Gas transmitter / detector
AKO-575xxx / AKO-5761x

Initial configuration (wizard)

The first time the unit receives the power supply, it will enter into ASSISTANT mode. The display will show the message In{ flashing at 0.

The pushbuttons / detectors / transmitters / probes should be connected before initiating the process, otherwise, they will not be detected.

Step 1 :
Select the most suitable InI option based on the type of installation to be carried out and press SET. The available options will be shown in the following table:

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