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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