Unit Controls

Warning

Risk of Injury
Never operate the unit unless you completely understand the controls; otherwise serious injury may occur.

1. Display	It is always active and backlit except when the unit is disconnected (no power) or when the unit is connected but has been manually switched off from the HMI. It normally displays the return air temperature (of both load compartments in multi-temperature units).
2. On/Off Key	This key is used to start/stop the unit. It is always lit except when the unit is disconnected (no power), and thus acts as an indicator of the presence of power in the unit.
3. Select Key	Selects prompt screens and information screens.
4. Up Key	Is used to increase the setpoint temperature.
5. Down Key	Is used to reduce the setpoint temperature.
6. Enter Key	Is used to enter a new command such as manual defrost, etc.
7. Buzzer	It is energised when the vehicle battery and the electric power supply are connected simultaneously. It is also energized if the doors are opened while the refrigeration unit is running.
8. Cool Symbol	(Thermometer with an arrow pointing downward). The unit is cooling.
9. Heat Symbol	(Thermometer with an arrow pointing upward). The unit is heating.
10. °C/°F Symbol	Indicates whether the on-screen temperature reading is in degrees Celsius (C) or degrees Fahrenheit (F).
11. Alarm Symbol	Indicates that there is an alarm in the system.
12. Maintenance Symbol	Warns of the need to carry out maintenance to the unit.
13. Defrost Symbol	Indicates the unit is in Defrost Mode.
14. Combined Compartment Symbol	Indicates that the multi-temperature unit is working as a single temperature unit.