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7. Controller description
7.1 Description of the display:
17. ON/OFF button: to switch on/off the unit (press 3 seconds). The red LED lights up when the unit is on.
18. SET button: to set the work set point of the unit. When the LED is on, setting is enabled.
19. PROGRAMMING BUTTON: to access the programming mode (press 5 seconds). When the LED is on,
programming is enabled.
20. MANUAL DEFROST BUTTON: press for 5 seconds to start a defrost cycle. When the LED is on, defrost is in
course.
21. UP/DOWN buttons to set parameters and set point.
22. LED °C or °F: it shows the unit of temperature measurement adopted for the displayed temperature.
23. HOT MODE LED: it shows that the unit is carrying out the hot cycle.
24. COLD MODE LED: it shows that the unit is carrying out the cold cycle.
25. DEFROST LED: it shows that the unit is carrying out the defrost cycle.
26. STAND-BY LED: it shows that the unit is operating in stand-by mode.
27. ALARM LED: it activates any time an alarm occurs.
28. ROAD LED: it shows that the unit is operating in road mode.
29. CONDENSER FAN LED: it shows that the condenser fan is operating.
30. EVAPORATOR FAN LED: it shows that the evaporator fan is operating.
31. DISPLAY: it shows the cold room temperature.
32. DISPLAY: it displays the alarms.
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