Turning the Unit On and Off

Important Verify the Base Controller ON/OFF Switch is turned on before turning on the HMI Control Panel. The Base Controller ON/OFF switch is located on the outside of the control box side of the unit.

If the HMI Control Panel is turned on and the Base Controller ON/OFF Switch is turned off, the HMI display screen will flash ON and OFF.

The unit is turned on by pressing the ON Key and off by pressing the OFF Key. When the ON Key is pressed, the display briefly shows dashes as the display initializes.

Important If the display flashes on and off continuously when the ON Key is pressed, check to verify the Base Controller ON/OFF switch is in the ON position.

Keys and LED Indicators

The unit running time hourmeters are shown for 30 seconds. The diesel engine run time hours and Diesel Icon are shown in the upper display. If the optional Electric Standby Feature is installed, the electric motor run time hours and Electric Icon appear in the lower display as shown below. A Full Pretrip Test is initiated from this display by pressing and holding the Pretrip Key as shown later in this section.

Electric Motor Run Time Hours and Electric Icon

When the unit is ready to run, the Standard Display of box temperature and setpoint appears. The box temperature and Box Temp Icon are shown in the upper display. The setpoint and Setpoint Icon are shown in the lower display. On multi-temperature applications, the Zone indicators are shown to the left of the box temperature. In the example below, Zone 2 is being shown on the display. The Zone 2 box temperature shown here is 35.8°F (2.1°C) with a 35°F (1.7°C) setpoint.

Zone 2

Pressing the OFF Key stops unit operation. The unit shuts down immediately and the display goes blank. To start the unit again, press the ON Key.

ON Key

Parent topic: Truck Standard Display HMI Control Panel