Electronic Controls (Rev 6/98)
26
starting. The glow plugs should be energized for 10 to 90
seconds, depending on ambient temperature. Holding the
switch in the START position engages the starter to crank
the diesel engine.
Manual Defrost Switch
The manual defrost switch is used to initiate a manual
defrost if required. It is spring loaded and will return to the
lower position when released. Lifting this switch will ini-
tiate a manual defrost if the unit is running and the coil tem-
perature is below 7° C (45° F).
CYCLE-SENTRY Continuous Run Switch
The CYCLE-SENTRY Continuous Run switch is used to
select either CYCLE-SENTRY or CONTINUOUS operat-
ing mode. If CONTINUOUS mode is selected, the unit
must be preheated and started manually. It will run continu-
ously to maintain the desired temperature and constant air-
flow. If CYCLE-SENTRY is selected, the unit will
automatically start and stop as required to maintain the set-
point and keep the engine warm and battery charged.
UNIT CONTROLS
Two sets of controls are used to operate a unit that is
equipped with a THERMOGUARD uP IV+ microprocessor
controller. The switch panel contains the switches that con-
trol the basic operation of the unit. The microprocessor con-
trol panel contains the LCD display and the keypad that
controls the operation of the microprocessor.
Control Switch Panel
UP IV+ MICROPROCESSOR DISPLAY
DISPLAY normally shows the standard display of return air
temperature and setpoint. All segments and icons are shown
in this illustration.
MODE DESCRIPTION shows the possible operating
modes and indicates the presence of alarms.
ICONS will appear next to the appropriate description
when the unit is operating in that mode or if an alarm condi-
tion exists.
1.
On-Off Switch
2.
Preheat-Start Switch
3.
Manual Defrost Switch
4.
CYCLE-SENTRY Continuous
Run Switch
1
2
3
4
AEA1353
Содержание Super II SR+
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