Thermo King UT-1200, Manual

Page: 44 / 169

Operating Instructions for Standard HMI Control Panel
44
will glow, the Alarm Icon will glow and the box
temperature and setpoint displays will disappear
as shown in Figure 23.
Figure 23: Alarm Icon
Alarm Code 91 Check Electric Ready Input will
be cleared and the unit will restart automatically if
power is restored.
Pressing the ON Key will clear Alarm Code 91
Check Electric Ready Input and turn the unit back
on in Diesel Mode. If unit operation is required,
the diesel engine will start as shown previously in
STARTING THE DIESEL ENGINE.
Figure 24: Press ON Key
Preferred Method for Manually Switching
from Electric Mode to Diesel Mode
1. Press the Standard Truck HMI Control Panel
OFF Key to turn the unit off.
2. Turn off the standby power and disconnect the
cord.
3. Press the Standard Truck HMI Control Panel
ON Key to turn the unit on. The Hourmeters
display will briefly appear and then the screen
will appear as shown in Figure 25.
Figure 25: Display, Preferred Method for Manually
Switching from Electric Mode to Diesel Mode
4. Press the Standard Truck HMI Control Panel
ON Key again to clear Alarm Code 91 Check
Electric Ready Input and turn the unit back on
in Diesel Mode.
IMPORTANT: When the display shown in
Figure 25 is present, do not press the Standard
Truck HMI Control Panel OFF Key to turn the
unit off. Press the Standard Truck HMI Control
Panel ON Key again to clear Alarm Code 91
Check Electric Ready Input and turn the unit
back on in Diesel Mode.
If the Standard Truck HMI Control Panel OFF
Key is pressed when the display shown in Figure
25 is present, the unit will turn off and the display
will be blank.
To restart the unit in Diesel Mode, proceed as
follows:
• Press the Standard Truck HMI Control Panel
ON Key. The Hourmeters display and a
blinking Alarm Icon will appear.
• When the Hourmeters display and a blinking
Alarm Icon is shown, press the Standard
Truck HMI Control Panel ON Key again. The
display will go blank but the blinking Alarm
Icon will remain on and blinking.
• When the display goes blank and the blinking
Alarm Icon is shown, press the Standard
Truck HMI Control Panel ON Key again. The
box temperature and setpoint will appear, the
blinking Alarm Icon will disappear and the
unit will start in Diesel Mode.
Selecting CYCLE-SENTRY or
Continuous Mode
When CYCLE-SENTRY mode is selected the unit
will start and stop automatically to maintain
setpoint, keep the engine warm and the battery
charged. When Continuous Mode is selected, the
unit starts automatically and runs continuously to
maintain setpoint and to provide constant airflow
throughout the truck box.
CYCLE-SENTRY Mode or Continuous Mode is
selected by pressing the
CYCLE-SENTRY/CONTINUOUS Key when the
unit is turned on. If the unit is running in
Continuous Mode, pressing this key will switch
operation to CYCLE-SENTRY Mode and the