Thermo King SLXi Spectrum, Maintenance Manual

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Controller Operation 7-14
Unit operational information appears on liquid crystal display (LCD). During normal operation, the Standard Display appears on
the screen. Return air temperature (upper display) and setpoint temperature (lower display) is the factory set Standard Display
(this may be changed). Check the symbols (icons) that appear on the display. These symbols identify the operating information
that currently appears.
A keypad allows the operator to select information to display and programme unit features including the setpoint temperature. If
no key is pressed for about 10 seconds, the display will return to the Standard Display.
Entering Setpoint Temperature
The setpoint temperature of the unit can be easily changed. To adjust the setpoint, begin from the Standard Display:
1. With the Standard Display on the controller, press the UP or DOWN arrow key until the desired setpoint temperature shows
in the lower display. The setpoint will flash as a reminder to press the ENTER key.
2. When the correct setpoint shows in the lower display, press the ENTER key to load the new setpoint in the microprocessor
memory.
• “LOAD” will appear in the lower display for a few seconds.
• The new setpoint will then appear.
• If the ENTER key is not pressed, the setpoint will NOT change and the display will return to the Standard Display in about
10 seconds.
Selecting CYCLE-SENTRY or Continuous Run Mode
1. With the Standard Display on the controller, press and release the MODE key until CYCLS appears in the upper display.
2. Press the UP or DOWN arrow key until the desired setting shows in the lower display.
• Yes = CYCLE-SENTRY mode
• No = Continuous Run mode
NOTE: If OptiSet has been programmed for CYCLE-SENTRY or Continuous Run, the arrow keys will not change the screen
setting.
3. When the correct setting shows in the lower display, press the ENTER key to load the new setting in the controller memory.
• “LOAD” will appear in the lower display for a few seconds.
• CYCLE-SENTRY icon appears in the display when CYCLE-SENTRY mode is selected.
• If the ENTER key is not pressed, the operating mode will NOT change and the display will return to the standard display
in about 10 seconds.
Initiating Manual Defrost
1. With the Standard Display on the controller, press and release the MODE key until dEF appears in the upper display.
2. When dEF shows in the lower display, press the ENTER key to place the unit in the Defrost mode.
• “LOAD” will appear in the lower display for a few seconds.
• The defrost symbol will appear in the display when the a zone enters defrost.
• Defrost will terminate automatically.
• If the ENTER key is not pressed, the operating mode will NOT change and the display will return to the Standard Display
in about 10 seconds.