AKO 145601 Electronic Expansion Valve Controller Instruction Manual
- June 13, 2024
- AKO
Table of Contents
AKO 145601 Electronic Expansion Valve Controller
How To Work
- The AKO-16526 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
- COMPRESSOR
- RESISTANCE OF CARTRIDGE
- DEFROST RESISTORS/DEFROST SOLENOID
- EVAPORATOR FANS
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/351652602.pdf.
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)
- 0-5 V (I61=2)
- 0.5-4.5 V (I61=3)
- 0-10 V (I61=4)
- 1-5 V(I61=5)
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 0.
- 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| Evap.
Fans| Pd| o00| o20| I00| I10| I11| I20|
I21| I30| I31| d1| D7| F3
0| Demo mode: it displays the temperature but does not regulate the
temperature
1| No| No| Electric| Yes| 0| 0| | 2| 0| 0| 0| 0| | | 20| 0| 0
2| Yes| Yes| Electric| Yes| 1| 1| | 2| 7| 1| 0| 0| | | 20| 0| 0
3| Yes| No| Electric| Yes| 0| 1| | 2| 0| 0| 0| 0| | | 20| 0| 0
4| No| No| Air| Yes| 0| 0| | 1| 0| 0| 0| 0| | | 20| 1| 1
5| Yes| Yes| Air| Yes| 1| 1| | 1| 7| 1| 0| 0| | | 20| 1| 1
6| Yes| No| Air| Yes| 0| 1| | 1| 0| 0| 0| 0| | | 20| 1| 1
7| Yes| Yes| Hot gas| Yes| 1| 1| | 2| 7| 1| 7| 1| | | 5| 2| 0
8| Yes| No| Hot gas| Yes| 0| 1| | 2| 0| 0| 7| 1| | | 5| 2| 0
- If u00=2: o20=3, I30=0, I31=0
- If u00≠2: o20=0, I30=9
If options 2, 5 or 7 are chosen, check the configuration of parameter | 11 according to the pressure switch type used.
Step 2:
Set this parameter to use the stepper-type electronic expansion valve.
- u00=2 Electronic expansion valve
Step 3:
Define the type of refrigerant gas used.
Step 4:
Define the pressure units to be used.
- I60=0 Bar
- I60=1 Psi
Step 5:
Define the type of pressure sensor used.
Step 6:
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 7:
Define the maximum value of the pressure sensor (I63) (value at 20 mA, 5 V,
4.5 V or 10 V according to I61).
Step 8:
Define the type of analogue output, which is connected to the driver input of
the electronic expansion valve. Consult the external driver specifications to
configure this correctly.
- o30=0 4 – 20 mA
- o30=1 0 – 10 V
Step 9:
Select the temperature set point.
Step 10:
Select the superheating set point. Step 11:
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.
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.