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Operating the Chiller Control

 

When the air-conditioning is connected to electrical power, the system initializes itself. The display 
shows 

Init

 and afterwards the frequency, e.g. 

50 Hz

 

Starting 

Press once the 

 

button.  

On

 is displayed and after appr. 20 sec. the current room temperature, e.g. 

28.5

 (°C) (83°F) is shown. Depending on the room and set-point 

temperature the appropriate mode will start. Mode indication by LED. 

 A malfunction is indicated by a blinking error code (see below) 

 

ba11

 is no error code that causes a system stop (see below) 

 

Setting the 
Temperature 

With the buttons   and   between 15°C (59°F) and 29°C (84°F) while the 
room-temperature is displayed. 
 
e.g. room temperature 25° C (77°F) 
 

Set temperature = 20°C (68°F), Cool mode starts. 

 

Set temperature = 29°C (84°F), Heat mode starts. 

Setting the Blower 
Speed 

Press the button 

 until 

b

 is shown to the left and the selected value to the 

right, e.g. 

 b 5

 (

Blower speed 5) 

 Value Range (Blower speeds): 

1-2-3-4-5 

and 

A

 

 Factory Setting:  

              

A

 (Automatic Blower Speed) 

Program with the buttons   and   . Confirm by pressing the 

 button. 

Secure your setting by pressing the 

 

button. The display shows 

memo 

and then the room-temperature. 
 

 In the automatic blower speed mode (

b A)

 the blower start and 

operation depends on the temperature. If there is no need for blower 
operation, the display shows 

ba11

. It can take some time before the blower 

starts.  

 The manual blower speed mode (

1 to 5

) is indicated by the LED 

„Manual blower operation“. 

Displaying the 
chilled water 
temperature 

Press the 

 button until 

H

 is shown to the left and a numerical value to the 

right, e.g. 

H10.5

. Check if the current operation mode is functioning 

properly. 

 Cool mode (LED snow flake) = Evaporator temperature drops constantly 

 Heat mode (LED sun) = Evaporator temperature rises constantly. 

 

Access to further 
program levels 

Press the 

 button until 

code

 is displayed. With a special access code 

specific settings can be modified (by the installer). 
Further information can be found in the installation manual. 
 

 
 
 
 

 
 
 

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