background image

ºC

bar

ºC

bar

ºC

bar

PRG

5"

SET

Change value

Accept

changes

Enter

password*

Password

request

ºC

bar

ºC

bar

PRG

SET

Change

menu

Change

value

Level 1: 

Menus

Level 2: 

Parameters

Accept

changes

SET

Change

parameter

Level 3:

Values

ºC

bar

ºC

bar

ºC

bar

ºC

bar

IN PROGRAMMING

* The 

TST

 and 

DSP

 parameters are adjusted automatically when the expansion valve model 

is selected. They should only be changed by qualified staff. 

AKO

 is not responsible for any 

damage that may be inflicted on the installation.

For further information, refer to the user manual available on our 
website: 

www.ako.com

IMPORTANT:

  In  the  event  of  an  alarm  or  fault  in  any  of  the  probes,  the 

controller  closes  the  liquid  solenoid  and  expansion  valve  until  the  problem  is 
solved.

Messages

*The default value of the password is 5. This may be changed using the 

PSS

 parameter.

Table of parameters

The equipment's operation functions are divided into 3 different groups.
The 

Def.

 column indicates the default parameters set in the factory. Temperature values are 

expressed  in  ºC.  (Equivalent  temperature  in  ºF)  and  the  pressure  values  in  bar  (equivalent 
pressure in psi).

Adjustment of parameters

Using the programming menu, you will be able to configure the various parameters in order 
to adapt the controller's operation to the needs of its installation.
In  order  to  access  the  programming  menu,  press  the 

PRG

  key  for  5  seconds,  or  until  the 

message  ''

PwD

''  is  displayed.  Using  the 

N

  and 

Q

  keys  enter  the  password  (programmed 

into  the 

PSS

  parameter)  and  press 

SET

.  Once  entered  correctly,  the  password  will  not  be 

requested again for 30 minutes.

SET

5"

Press the 

SET

 button for 5 seconds to exit programming. If no key is pressed for 3 

minutes, the controller will exit programming.

Level 1

Level 2

GROUP 1

Description

Values Min.

Def.

Max.

1.Pr

SH

Overheating set point

(K)

3.5

10

30

or

Initial opening for valve start up

(%)

0

50

100

ort

Duration of initial start up opening

(Sec.)

0

5

300

pro

Proportional gain

0.1

3

99.9

int

Integral time

(Sec.)

0

120

999

der

Derivative time

(Sec.)

0

30

999

lsM

Lower overheating alarm 

0:

 Deactivated 

 1: 

Automatic reset  

2: 

Manual reset

0

1

2

lSS

Lower overheating alarm activation value

(K)

0.5

3

30

LSt

Lower overheating alarm turn-on delay time

(Sec.)

1

15

300

lsC

Lower overheating alarm deactivation time

(K)

1

3

30.5

MpM

Maximum pressure alarm in probe 2 

0:

 Deactivated

 

1: 

Automatic reset 

2:

 Manual reset

0

1

2

Mps

Maximum pressure alarm activation value

(bar/psi)

-999

9

999

Mpt

Maximum pressure alarm turn-on delay time

(Min.)

1

1

15

MpC

Maximum pressure alarm deactivation time

(bar/psi)

-999

8

999

HSM

Maximum overheating alarm 

0: 

Deactivated 

 

1: 

Automatic reset  

2:

 Manual reset

0

0

2

HSS

Maximum overheating alarm activation value

(K)

10.0

30

40.0

HST

Maximum overheating alarm turn-on delay time

(Min.)

1

3

600

HSC

Maximum overheating alarm deactivation time

(K)

7.0

27

37.0

FPM

Freeze alarm 

0:

 Deactivated 

 1:

 Automatic reset  

2:

 Manual reset

0

0

2

FPS

Maximum freeze alarm activation value

(ºC/ºF)

-100

0

200

FPT

Freeze alarm turn-on delay time

(Sec.)

5

30

200

FPC

Maximum freeze alarm deactivation time

(ºC/ºF)

-100

3

200

LPM

Lower pressure alarm in probe 2 

0: 

Deactivated 

 1:

 Automatic reset  

2:

 Manual reset

0

0

2

LPS

Lower pressure alarm activation value

(bar/psi)

-999

0

999

LPT

Lower pressure alarm turn-on delay time

(Sec.)

5

5

200

LPC

Lower pressure alarm deactivation time

(bar/psi)

0

0.3

999

GROUP 2

Description

Values Min.

Def.

Max.

2.Pr

pu

Pressure units   

0:

 Bar 

1:

 Psi

0

0

1

Tu

Temperature units 

0:

 ºC 

1:

 ºF

0

0

1

EM

Selection of expansion valve model connected

 1:

 Danfoss ETS 12.5 / 25B 

2:

 Danfoss ETS 50B 

3: 

Danfoss ETS 100B

 

4:

 Danfoss ETS 250 

5:

 Danfoss ETS 400 

6:

 Alco EX4

 

7:

 Alco EX5 

8:

 Alco EX6 

9:

 Alco EX7

 

10:

 Alco EX8 (330 s/s) 

11: 

Alco EX8 (500 s/s) 

12:

 Sporlan SEI 0.5~11

 

13:

 Sporlan SEI 1.5~20 

14:

 Sporlan SEI 30 

15:

 Sporlan SEI 100

 

16:

 Sporlan SEI 175 

17: 

Carel E2V

1

1

17

TST

Total steps for expansion valve*

0

262

999

DSP

Expansion valve speed*

0

250

999

GROUP 3

Description

Values Min.

Def.

Max.

3.Pr

pss

Parameter access password

0

5

999

rft

Type of refrigerant gas used: 

0:

 R-22 

1:

 R-134A 

2:

 R-404A

 

3:

 R-407C 

4:

 R-410A 

5:

 R-717

 

6:

 R-23 

7:

 R-507C

 

8:

 R-HFO1234ze 

9:

 R-744 

10:

 R-407A 

11:

 R-407F 

12:

 R-507A

  13:

 R-245F

0

1

13

PSH

Pressure probe range (Maximum)

(bar/psi)

-999

15

999

PSL

Pressure probe range (Lower)

(bar/psi)

-999

-1

999

PSO

Pressure probe calibration (S2)

(bar/psi) -19.9

0

19.9

TSO

Pressure probe calibration (S1)

(ºC)

-19.9

0

19.9

JCR

Expansion valve opening speed limit

(%)

0.1

OFF

99.9

UrL

Maximum expansion valve opening limit

(%)

0

100

100

LrL

Lower expansion valve opening limit

(%)

0

0

100

Ft

Reading delay for probes (S1 and S2)

(Sec.)

0.1

1

10.0

COR

Lower expansion valve forced opening value

(%)

0.0

OFF

100

DM

Display mode: 

 

0:

 Displays options 1 to 4 sequentially

 

 1: 

Overheating value (ºK)

 

2: 

Suction pressure value (Probe 2)

 

 

3: 

Valve opening (%)

 

4: 

Temperature value (Probe 1)

 

5:

 Overheating set point

0

1

5

CID

Communication direction

1

1

128

CSP

Communication speed

(BPSx100)

48

96

384

INI

Initial settings (enter password and press 

SET

)

0

0

999

Description

PS

Problem in the pressure sensor

TSD

Probe 1 not connected

TsC

Crossed temperature probe

MOP

Maximum Operation Pressure (MOP) alarm

LOP

Lower Operation Pressure (LOP) alarm

HS

Maximum overheating alarm

LS

Lower overheating alarm

FRA

Frost detection alarm

STP

Regulation stopped by external thermostat (ON/OFF Input)

CAL

Expansion valve initialisation

CLE

Valve closing underway due to fault in the electricity supply (emergency power 
supply required)

EXPANSION 

VALVE

LIQUID 

SOLENOID

EVAPORADOR

PRG

SET

%

AKO-145601

AKO-D141xx

S1

S2

ºC

bar

SET

Technical specifications

Power supply .......................................................................24 V~ +10% / -15%, 50/60 Hz
Working ambient temperature ................................................-10 to 50 ºC, moisture <90 %
Storage ambient temperature .................................................-20 to 60 ºC, moisture <90 %
Relay solenoid valve ........................................................ (EN60730-1: 2(2) A 250 V~ SPST)
No. of relay operations..........................................................EN60730-1: 100.000 operations
Maximum voltage in the SELV circuits............................................................................20 V
Protection degree ...........................................................................................................IP2X

2

Connections ..................................Terminal to screw for cables with a section of up to 2.5 mm
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 power input insulation, secondary circuit and relay output.
Rated pulse voltage ...................................................................................................2500 V
Pressure ball test temperature 

Accessible parts..........................................................75 ºC

 

Parts that position active elements.............................125 ºC

Voltage and current declared by the EMC tests ........................................................207 V, 17 mA
Radio interference suppression test current ....................................................................270 mA

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