AKO 16523 Temperature Controller For Cold Rooms User Guide

AKO 16523 Temperature Controller For Cold Rooms

Warnings

• Using the unit without observing the manufacturer’s instructions may alter the appliance’s safety requirements. Only probes supplied by AKO should be used for the unit to operate correctly. 2 -From -40 °C to +20 °C, if the NTC probe is extended to 1000 m with at least 0.5 mm cable, the maximum deviation will be 0.25 °C (Cable for probe extension ref. AKO-15586. Connect the welded wire fabric to earth at one end only).
• Only NTC probes supplied by AKO should be used for the appliance to operate correctly.
• It 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 probe should be used in a place without heat influences apart from the temperature you want to measure or control.
• IP65 protection degree is only valid with the protection cover closed.
• IP65 protection degree is only valid if the cables enter the device using a tube for electric conductions + gland with IP65 or above. The size of the glands should be suitable for the diameter of the tube used.
• Do not spray the unit directly with high-pressure hoses, as this could cause damage.

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.

Wiring

Always disconnect the power supply to do the wiring. The probes and their cables should NEVER be installed in a conduit together with power, control or power supply cables.

For disconnection, the power supply circuit must be equipped with a switch of at least 2 A, 230 V, located near the device. The power supply cable will be H05VV-F or NYM 1×16/3. The section to be used will depend on the 2 local standard in force, but must never be less than 2.5 mm . 2 Cables for relay or contactor outputs should have a section of 2.5 mm , allow working temperatures equal to or over 70 °C and be installed with as few bends as possible. The 120/230 V~ wiring must be kept clear of any other external element. The wiring to be done depends on the type of installation. Use the appropriate diagram based on the option selected in the wizard. Check the available options on the attached diagram sheet. The AKO-16523D model has a contactor which allows for the connection of three-phase defrost resistors, threephase compressor or three-phase fans according to installation requirements. Check how to connect it in the attached diagram sheet.

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.

Keypad

• ESC: Pressing it for 3 seconds activates/deactivates Stand-By mode. In this mode, regulation is paused and the icon is displayed.
  • In the programming menu, this exits the parameter without saving changes, returns to previous level or exits programming.
• Pressing once displays the temperature of probe S2 for 10 seconds (If it is enabled).
  • Pressing it for 3 seconds starts/stops the defrost.
  • In the programming menu, this allows scrolling around the different levels, or, during the setting of a parameter, changing its value.
• Pressing it for 3 seconds activates/deactivates continuous cycle mode.
  • In the programming menu, this allows scrolling around the different levels, or, during the setting of a parameter, changing its value.
• Pressing once activates/deactivates the cold room light.
  • Pressing it for 3 seconds accesses the condensed programming menu.
  • Pressing it for 6 seconds accesses the expanded programming menu.
  • In the programming menu, this accesses the level shown on the display or, during the setting of a parameter, accepts the new value.
• Pressing once displays the current effective value of the Set Point, taking into consideration temporary modifications by other parameters (C10 ó C12).
  • When an alarm is underway, pressing once mutes the acoustic alarm.
  • Pressing for 3 seconds accesses the Set Point setting.

Indicators

• Fixed: Stand-By Mode activated. Regulation is paused.
  • Flashing: Controlled shutdown process for the regulation underway.
• Fixed: Cold room door open.
  • Flashing: The door has been open for a greater time than has been defined in parameter A12.
• There is an active alarm, but not an active HACCP alarm.
• Fixed: HACCP alarm active.
  • Flashing: HACCP alarm registered and unconfirmed. Press the key to confirm an HACCP alarm.
• Fixed: Evaporator fans active.
  • Flashing: The evaporator fans should be active but a delay is preventing this.
• Fixed: The cold solenoid is active.
  • Flashing: The solenoid should be active but a delay or protection is preventing this.
• Fixed: Compressor active.
  • Flashing: The compressor should be active but a delay or protection is preventing this.
• Defrost relay active.
• Continuous cycle mode active.
• Cold room light active.
• Alarm underway muted.
• Temperature displayed in ° Fahrenheit / ° Centigrade.
• Programming mode active.
• Fixed: CAMM module in operation.
  • Flashing: Malfunction in CAMM module.
• Bluetooth activated (CAMM module only).

STAND-BY

• If the regulation cannot be instantly stopped due to its configuration, a controlled stop process starts and the icon flashes.
• To stop the controlled stop process and force the step to Stand-by, press the Stand-by key again for 3 seconds.

Initial configuration

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

• 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:

In{

| Type of installation| Parameters| Diagram to be used
---|---|---|---
Cold regulation| Pump Down| Defrost| Evaporator fans| Pd| o00| I00| I10| I11| I20| I21| d1| d7| F3
0| Demo mode: it displays the temperature but does not regulate the temperature or activate relays.
1| Solenoid| No| Electric| Yes| 0| | 2| 0| 0| 0| 0| 20| 0| 0| A
2| Solenoid + compressor| Yes| Electric| Yes| 1| 1| 2| 7| 1| 0| 0| 20| 0| 0| B
3| Solenoid + compressor| No| Electric| Yes| 0| 1| 2| 0| 0| 0| 0| 20| 0| 0| B
4| Solenoid| No| Air| Yes| 0| | 1| 0| 0| 0| 0| 20| 1| 1| A
5| Solenoid + compressor| Yes| Air| Yes| 1| 1| 1| 7| 1| 0| 0| 20| 1| 1| B
6| Solenoid + compressor| No| Air| Yes| 0| 1| 1| 0| 0| 0| 0| 20| 1| 1| B
7| Solenoid + compressor| Yes| Hot gas| Yes| 1| 1| 2| 7| 1| 9| 1| 5| 2| 0| C
8| Solenoid + compressor| No| Hot gas| Yes| 0| 1| 2| 0| 0| 9| 1| 5| 2| 0| C
9| Solenoid + compressor| Yes| Reversed cycle| Yes| 1| 1| 2| 7| 1| 0| 0| 5| 3| 0| D
10| Solenoid + compressor| No| Reversed cycle| Yes| 0| 1| 2| 0| 0| 0| 0| 5| 3| 0| D
11| Solenoid| No| Static| No| 0| *| 1| 0| 0| 0| 0| 20| 1| –| A
12| Solenoid + compressor| Yes| Static| No| 1| 1| 1| 7| 1| 0| 0| 20| 1| –| B
13| Solenoid + compressor| No| Static| No| 0| 1| 1| 0| 0| 0| 0| 20| 1| –| B

If options 2, 5, 7, 9 or 12 are chosen, check the configuration of parameter I11 according to the pressure switch type used. (See diagram included with the device).

• Step 2:
  • Use keys and to enter the desired Set Point value and press SET. The wizard has finished. The unit will begin to regulate the temperature. If this is not the first time you initiate the wizard, after completing the last step the display will show the message dFp (parameters per defect). You may choose between two options:
  • 0: Only changing the parameters which affect the wizard. The other parameters will remain the same.
  • 1: All parameters return to their factory setting except those which have been modified by the wizard.

ATTENTION: The wizard will not reactivate. To reactivate it, activate Stand-By mode by pressing the key for 3 seconds and wait until the unit completely halts regulation (The indicator will light up permanently) and press in this order the following keys (one after the other, not at the same time) , , SET.
WARNING: If the pump down function is active, a certain amount of time may elapse between starting the stand-by function and the controller stopping.

• o00= in AKO-16523 /16523-V / 16520, o00=0 in AKO-16523P / 16520P / 16523D / 16523L.

Configuration

Condensed programming menu

• Enables the rapid configuration of the most frequently-used parameters (SP, C1, d0, d1, d4, F3, A1 and A2).
• Press the SET key for 3 seconds to access it.

Extended programming menu

Use the extended programming menu to configure all of the unit’s parameters in order to adapt it to installation requirements. Press the SET key for 6 seconds to access it.

IMPORTANT: If the function of the password has been configured as a keypad block (b10=2), or as an access block to parameters (b10=1), you will be requested to enter the access code 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.

99
C3| Set Point bottom locking (it cannot be set below this value)| ºC/ºF| -50| -50| C2

C4

| Type of delay for the protection of the compressor:

0 =Minimum time of compressor in OFF

1 =Minimum time of compressor in OFF and in ON in each cycle

|  |

0

|

0

|

1

C5| Protection delay time (Value of the option selected in parameter C4)| Min.| 0| 0| 120

C6

| COOL relay status with fault in probe 1:

0 =OFF; 1 =ON; 2 =Average according to last 24h prior to probe error

3 =ON-OFF according to prog. C7 and C8

|  |

0

|

2

|

3

C7| Relay time in ON in the event of probe 1 failure

(If C7=0 and C8:;0, the relay will always be disconnected in OFF)

| Min.| 0| 10| 120
C8| Relay time in OFF in the event of probe 1 failure

(If C8=0 and C7:;0, the relay will always be connected in ON)

| Min.| 0| 5| 120
C9| Maximum duration of the continuous cycle mode. ( 0 =deactivated)| H.| 0| 0| 48

C10

| Variation of the Set Point (SP) in continuous cycle mode. When it reaches this point (SP+C10), it reverts to the normal mode. (SP+C10 ? C3).

The value of this parameter is always negative, unless it is 0. ( 0 =OFF)

|

ºC/ºF

|

0

|

-50

|

C3-SP

C12| Variation of the Set Point (SP) when the change Set Point function is active. (SP+C12:s C2) ( 0 = deactivated)| ºC/ºF| C3-SP| 0.0| C2-SP
C19| Maximum start time from Pump Down

(Values between 1 and 9 seconds will not be accepted) ( 0 =deactivated)

| Sec.| 0| 0| 120
C20| Maximum time for pump down ( 0 = deactivated)| Min.| 0| 0| 15
C21| Probe to be displayed 0 =All probes (sequential)

1 =Probe 1 (Chamber) 2 =Probe 2 (Evaporator)       3 =Probe 3 (According to I20 )

|  | 0| 1| 3
---|---|---|---|---|---
C22| Stop fans and compressor on opening door 0 =No 1 =Yes|  | 0| 0| 1
C23| Start-up delay for fans and compressor with door open| Min.| 0| 0| 999
C27| Probe 3 calibration (Offset)| ºC/ºF| -20.0| 0.0| 20.0
EP| Exit to level 1

DEF

►

| d0| Defrost frequency (Time between 2 starts)| H.| 0| 6| 96
d1| Maximum defrost duration ( 0 =defrost deactivated)| Min.| 0| *| 255

d2

| Type of message during the defrost:

0 =Displays the real temperature; 1 =Displays the temperature at the start of the defrost; 2 =Displays the dEF message

|  |

0

|

2

|

2

d3| Maximum duration of the message

(Time added at the end of the defrost process)

| Min.| 0| 5| 255
d4| Final defrost temperature (by probe) (If I00 :; 1)| ºC/ºF| -50| 8.0| 50
d5| Defrost on connecting the unit:           0 =NO First defrost according to d0;

1 =YES, First defrost according to d6

|  | 0| 0| 1
d6| Delay of the defrost start on connecting the unit| Min.| 0| 0| 255
d7| Type of defrost:            0 =Resistors;     1 =Air/fans

2 =Hot gas;        3 =Reversal of cycle

|  | 0| *| 3
d8| Count of time between defrost periods:

0 =Total real time 1 =Sum of compressor connected time

|  | 0| 0| 1
d9| Drip time when completing defrost (Shutdown of compressor and fans)| Min.| 0| 1| 255
EP| Exit to level 1

• According to wizard.
  • It can only be modified using the configuration wizard (InI).

1 = Relay OFF in alarm (ON without alarm)

|  | 0| 0| 1
A10| Differential of temperature alarms ( A1 and A2 )| ºC/ºF| 0.1| 1.0| 20.0
A12| Delay of open door alarm (If I10 or I20 =1)| Min.| 0| 10| 120
EP| Exit to level 1

1 =Block access to parameters                2 =Block keypad

|  | 0| 0| 2
PAS| Access code (Password)|  | 0| 0| 99
B20| MODBUS address|  | 1| 1| 247
B21| Communication speed:      0 =9600 bps 1 =19200 bps

2 =38400 bps 3 =57600 bps

| bps| 0| 0| 3
B22| Acoustic alarm enabled 0 = No 1 =Yes|  | 0| 1| 1
UNT| Work units             0 =ºC 1 =ºF|  | 0| 0| 1
EP| Exit to level 1

• • According to wizard.

In0

►

►

| I00| Connected probes  1 =Probe 1 (Cold room)

2 =Probe 1 (Cold room) + Probe 2 (Evaporator)

|  | 1| 2| 2

I10

| 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

|  |

0

|

|

8

I11| Polarity of the digital input 1

0 =Activates on closing contact; 1 =Activates on opening contact

|  | 0| *| 1

I20

| Configuration of digital input 2 0 = Deactivated 1 =Door contac 2 =External alarm 3 =Severe external alarm 4 =Change of SP 5 =Remote defrost   6 =Defrost block 7 =Register probe     8 =Probe 2° evaporator 9 =High pressure switch for Hot Gas 10** =Remote Stand-by|

0

|

0

|

10

I21| Polarity of the digital input 2

0 =Activates on closing contact; 1 =Activates on opening contact

|  | 0| 0| 1
O00| Configuration of relay AUX1 0 =Deactivated  1 =Compressor/Resistor sump

2 =Light      3 =Virtual control      4 =Alarm ( AKO-16523 / 16523-V / 16520 only)

| 0| *| 4

O10

| Configuration of relay AUX2 (Not available in AKO-16523 / 16523-V / 16520 ) 0 =Deactivated              1 =Alarm         2 =Light 3 =Virtual control 4 =Door frame resistance 5 =Defrost 2° evaporator

6 =Same as solenoid status 7 =Same as unit status

|  |

0

|

2

|

7

EP| Exit to level 1

• • According to wizard.
• ** Option not available in AKO-16523 / 16523-V / 16520
  • It can only be modified using the configuration wizard (InI).

Messages

HCP +

PF

| HACCP alarm due to a fault in the electric supply. The temperature established in h1 has been reached following a fault in the electric supply| •| •
DEF| Indicates that a defrost is being performed|  |
PAS| Access code (Password) request. See parameters b10 and PAS|  |
S1 –

S2

| Shown sequentially with the temperature: The controller is in demo mode, the configuration has not been made.|  |

• A: Activates the acoustic alarm
• R: Activates the alarm relay

Technical Specifications

• Power supply: AKO-16523 / 16523-V / 16523P / 16523D / 16523L……………….230 V~ ± 10%, 50 Hz ± 5%
  • AKO-16520 / 16520P……………………………………………………120 V ~ + 8% – 12%, 50 Hz ± 5%
• Maximum input power in the operation: …………………………………………………………………………………………6.3 VA
• Maximum nominal current: ……………………………………………………………………………………………………………..15 A
• Relay SSV / DEFROST – SPDT – 20 A NO: …………………………………………………… (EN60730-1: 15 (15) A 250 V~ )
  • NC: ……………………………………………………..(EN60730-1: 15 (13) A 250 V~)
• Relay FAN – SPST – 16 A: ……………………………………………………………………………..(EN60730-1: 12 (9) A 250 V~)
• Relay COOL – SPST – 16 A: ……………………………………………………………………………(EN60730-1: 12 (9) A 250 V~)
• Relay AUX 1 / H.CRANK. – SPDT – 20 A NO: …………………………………………………(EN60730-1: 15 (15) A 250 V~)
  • NC: ………………………………………………….(EN60730-1: 15 (13) A 250 V~)
• Relay AUX 2 – SPDT – 16 A NO: ……………………………………………………………………(EN60730-1: 12 (9) A 250 V~)
  • NC: ……………………………………………………………………(EN60730-1: 10 (8) A 250 V~)
• Contactor – 20A (AKO-16523D) AC1: ………………………………………………………………………20 A 400 V~ (III+N)
  • AC3: ………………………………………………………………………..9 A 400 V~ (III+N)
• No. of relay operations: ……………………………………………………………………………..EN60730-1:100.000 operations
• Probe temperature range: ……………………………………………………………………………………………-50.0 ºC to 99.9 ºC
• 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: AKO-16523 / 16523-V / 16520 …………………………………………-10 ºC a 50 ºC
  • AKO-16523P / 16520P……………………………………………………..-10 ºC a 45 ºC
  • AKO-16523D / 16523L …………………………………………………….-10 ºC a 40 ºC
• Storage ambient temperature: …………………………………………………………………………………………..-30 ºC to 60 ºC
• Protection degree: ………………………………………………………………………………………………………………………..IP 65
• Installation category: ……………………………………………………………………………………………………..II s/ EN 60730-1
• Pollution degree: …………………………………………………………………………………………………………..II s/ EN 60730-1

Control device classification: Built-in assembly, with Type 1.B automatic operation action feature, for use in clean situations, logical support (Software) class A and continuous operation. Degree of contamination 2 acc. to UNE-EN 60730-1. Double isolation between power supply, secondary circuit and relay output.

• Temperature during ball-pressure test Accessible parts: ………………………………………………………………..75 ºC
• Parts which position active elements: …………………………………….125 ºC
• Current of radio jamming supression tests: ……………………………………………………………………………………270 mA
• Voltage and current as per EMC tests: AKO-16520 / 16520P ………………………………………………..105 V, 36 mA
  • AKO-16523 / 16523-V / 16523P / 16523D / 16523L……….207 V, 17 mA
• Type of assembly: ………………………………………………………………………………………………………………Fixed internal
• MODBUS address: …………………………………………………………………………………………………………..Shown on label
• Dimensions: ……………………………………………………………………………….290 mm (W) x 141 mm (H) x 84.4 mm (D)
• Internal buzzer

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.

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