AKO-16526, AKO-16526A V2 Controller Instruction Manual
- October 30, 2023
- AKO
Table of Contents
16526, AKO-16526A V2 Controller
Instruction Manual
AKO-16526, AKO-16526A V2 Controller
Controlling an electronic expansion valve (Stepper-type) using the AKO-16526
/ AKO-16526A V2 controller
The AKO-16526 / AKO-16526A controller can be used to control a PWM-type
electronic expansion valve directly; an external driver must be used to
control a Stepper-type valve.
The controller tells the driver which opening should be applied to the EEV
according to the pressure and temperature at the evaporator outlet, in order
to obtain the superheating value defined in parameter Sh. An optimum
superheating value increases the efficiency of the evaporator.
Wiring
The
function of the D2/S4 input depends on the configuration of parameter I20.
The function of the AUX 2 relay depends on the configuration of parameter o10.
For further information, please refer to the user manual available on our
website.
https://help.ako.com/assets/uploads/351652662.pdf
| COMPRESSOR| | DEFROST RESISTORS / DEFROST SOLENOID
---|---|---|---
| RESISTANCE OF CARTRIDGE| | EVAPORATOR FANS
Configuration
Before proceeding with the initial configuration, it is advisable to note down
certain installation details:
Defrost
Note the defrosting method used:
Electrical (resistors), air (evaporator fans), hot gas valve (condensing unit)
or cycle reversal.
Analogue outputs
The analogue output (ANALOG OUT) enables communication between the controller
and the external controller of the electronic expansion valve and can be
configured as 4-20 mA output (o30=0) or as 0-10 V output (o30=1).
Consult the specifications of the external controller and note them down.
SET POINT (temperature)
Make a note of the desired set temperature value.
Type of gas
Note the type of gas used in the installation.
Pressure sensor type
Note the type of evaporator pressure sensor installed:
4-20 mA (I61=1)
0-10 V (I61=4)
0-5 V (I61=2)
1-5 V(I61=5)
0.5-4.5 V (I61=3)
Note also the maximum and minimum values of the pressure sensor as well as the
units of pressure used (bar or Psi).
Superheating SET POINT
Enter the desired optimum superheating value.
Assistant
The first time the unit receives the power supply, it will enter into
ASSISTANT mode. The display will show the message flashing at .
The buttons and change the value, the SET button accepts the value and
moves on to the next step.
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:
| InI | Type of installation | Parameters |
|---|---|---|
| Control of the compressor | Pump Down | Defrost |
| Pd | o00 | I00 |
| I31 | d1 | D7 |
| Demo mode: it displays the temperature but does not regulate the |
temperature
| No| No| Electric| Yes| 0| 0| 2| 0| 0| 0| 0| | | 20| 0| 0
| Yes| Yes| Electric| Yes| 1| 1| 2| 7| 1| 0| 0| | | 20| 0| 0
| Yes| No| Electric| Yes| 0| 1| 2| 0| 0| 0| 0| | | 20| 0| 0
| No| No| Air| Yes| 0| 0| 1| 0| 0| 0| 0| | | 20| 1| 1
| Yes| Yes| Air| Yes| 1| 1| 1| 7| 1| 0| 0| | | 20| 1| 1
| Yes| No| Air| Yes| 0| 1| 1| 0| 0| 0| 0| | | 20| 1| 1
| Yes| Yes| Hot gas| Yes| 1| 1| 2| 7| 1| 7| 1| | | 5| 2| 0
| Yes| No| Hot gas| Yes| 0| 1| 2| 0| 0| 7| 1| | | 5| 2| 0
If options 2, 5 or 7 are chosen, check the configuration of parameter I11
according to the pressure switch type used.
Step 2:
Define the type of refrigerant gas used.
u02=0| R404A| u02=1| R134A| u02=2| R407A| u02=3| R407F| u02=4| R410A| u02=5|
R450A
---|---|---|---|---|---|---|---|---|---|---|---
u02=6| R513A| u02=7| R744| u02=8| R449A| u02=9| R290| u02=10| R32| u02=11|
R448A
u02=12| R1234ze| u02=13| R23| u02=14| R717| u02=15| R407C| u02=16| 1234yf|
u02=17| R22
u02=18| R454C| u02=19| R455A| u02=20| R507A| u02=21| R515B| u02=22| R452A|
u02=23| R452B
u02=24| R454A| | | | | | | | | |
Step 3:
Define the minimum value of the pressure sensor (I62) (value at 4 mA, 0 V, 0.5
V or 1 V according to I61).
Step 4:
Define the maximum value of the pressure sensor (I63) (value at 20 mA, 5 V,
4.5 V or 10 V according to I61).
*Steps only visible if u02=7
Step 5:
Select the temperature set point.
Step 6:
Set all other parameters to default? dFP=0 No, the other parameters do not
need to be changed
dFP=1 Yes, set all other parameters to their default values.
This option only appears if this is not the first time the set-up wizard has
been run.
The initial configuration is now complete, and the device will start to
regulate the temperature.
The configuration wizard will not reactivate. To reactivate it, activate the
stand-by mode (by pressing the button for 3 seconds) and wait until the unit
completely halts regulation (the m indicator will light up permanently) and
press the ▲,▼, SET buttons in this order in sequence, not at the same time.
Additional configuration
Access the extended programming menu by pressing the SET button for 6 seconds
to complete the configuration.
Access parameter u00 and set it to 2 to use the Stepper-type electronic
expansion valve.
u00=2 Electronic expansion valve
Access parameter o30 (Analogue output) and configure the appropriate output
type according to the driver used.
The driver input for the electronic expansion valve is connected to this
output.
Consult the external driver specifications to configure this correctly.
o30=0 4 – 20 mA
o30=1 0 – 10 V
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 slightly different to those described
in our data sheets.
Updated information on our website.
351652682 Rev. 01 2023