Thermo King UT-1200, Manual

Page: 41 / 169

Operating Instructions for Standard HMI Control Panel
41
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 Standard Truck 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 make sure the Base Controller On/Off switch
is in the ON position.
Figure 13: Keys and LED Indicators
Then 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 in Figure 14.
A Full Pretrip Test is initiated from this display by
pressing and holding the Pretrip Key as shown
later in this section.
Figure 14: 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. The box temperature
shown in Figure 15 is 35.8 F (2.1 C) with a 35 F
(1.6 C) setpoint.
Figure 15: Standard Display of Box temperature
and Setpoint
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,
shown in Figure 16.
Figure 16: ON Key
The Standard Display
The Standard Display is the default display that
appears if no other display function is selected.
The Standard Display shows the box temperature
and setpoint. The box temperature is that
measured by the return air sensor. The box
temperature and Box Temperature Icon are shown
in the upper display. The setpoint and Setpoint
Icon are shown in the lower display. The box
temperature in Figure 17 is 35.8 F (2.1 C) with a
35 F (1.6 C) setpoint.
Figure 17: Standard Display