Thermo King Super II SR+, Manual, Page: 35 / 145

25
Electronic Controls
CAUTION: The unit may start and run automati-
cally at any time when the On-Off switch is in the
ON position and the CYCLE-SENTRY Continuous switch
is in the CYCLE-SENTRY position.
NOTE: The unit DOES NOT control the box temperature
to setpoint when operating in SLEEP mode.
uP IV+ Microprocessor
SR+ CONTROL PANEL
The SR+ Control Panel includes the microprocessor display
and keypad; and the unit switch panel.
DISPLAY—The display normally shows the standard dis-
play of return air temperature and setpoint. Other operating
and unit information can be shown here. All possible seg-
ments and operating icons are shown in the SR+ Control
Panel illustration on this page.
KEYPAD—The keypad has touch-sensitive keys. It used to
change the setpoint, view operating conditions and other
unit information and to control the unit.
SWITCH PANEL—The switches on the switch panel are
used to turn the unit on and off, select the operating modes
and initiate a manual defrost cycle.
CONTROL PANEL SWITCHES
On-Off Switch
The On-Off switch is used to turn the unit on and off. When
the switch is in the OFF position, the unit is shut down. The
switch should always be placed in the OFF position before
servicing the unit.
When the switch is in the ON position., the unit will operate
in the selected mode and will control the box temperature to
setpoint.
CAUTION: The unit may start and run
automatically at any time when the On-Off switch is
in the ON position and the CYCLE-SENTRY Continuous
switch is in the CYCLE-SENTRY position.
Preheat-Start Switch
The Preheat-Start switch is used to preheat and start the die-
sel engine when the unit is running in Continuous mode. It
is spring loaded and will return to the center position when
released. Holding the switch in the PREHEAT position
energizes the glow plugs to preheat the diesel engine before
1. Display
2. Key Pad
3. Switch Panel
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2
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