AKO AKO-16526, User Manual

Page: 10 / 40

351652602 Ed. 03
10
Initial configuration
The AKO-16526 controller can be adapted to different types of installation according to the different options chosen
in the set-up wizard.
Before completing the wiring, make sure you are familiar with the details of the installation in order to configure it
correctly.
It is advisable to note the following points:
Compressor
Whether the controller should switch the compressor on and off (InI=2, 3, 5, 6, 7 or 8) or whether the compressor is
switched on and off by the low pressure switch (InI=1 or 4).
Defrost
Defrosting method used:
Electric (InI=1, 2 or 3) Air (evaporator fans) (InI=4, 5 or 6)
Hot gas valve (condensing unit) (InI=7 or 8)
Solenoid/EEV
Type of solenoid/EEV used:
• So thermostatic expansion valve (u00=0).
• PWM-controlled EEV (without liquid solenoid) (u00=1).
• Stepper-controlled EEV (u00=2). Requires an external controller for the EEV. For more information, please refer
to the application note available on our website.
Options u00=1 and u00=2 require the use of a superheating temperature sensor (S5) and an evaporator pressure
sensor (S6).
Evaporator fans
If the fan control is ON/OFF (F10=0) or an external frequency inverter is used for ventilation (F10=1).
The second option is only available if a STEPPER-type electronic expansion valve (u00=2) is not used.
Analogue outputs
The analogue output (ANALOG OUT) enables communication between the controller and the external controller of
the electronic expansion valve (if u00=2), or with the frequency inverter of the fans (if F10=1), 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 or drive before setting this option.
SET POINT (temperature)
Make a note of the desired set temperature value.
If u00=1 or 2, you must also know:
Type of gas
Type of gas used in the installation.
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
Pressure sensor type
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).