Thermo King SB-190 30, Manual

Page: 33 / 119

Operating Instructions (Rev. 12/03)
23
NOTE: The unit will not control the box temperature
when the switch is in the “Sleep” position.
Display
The display normally shows the Standard Display of return
or discharge air temperature and setpoint when the unit is
on. Other operating and unit information can also be shown
here. All possible segments and operating icons are shown
in the illustration on the previous page.
Icons
An icon will appear next to the appropriate description
when the unit is operating in that mode or if an alarm condi-
tion exists.
Cool Icon Appears when the unit is operating in cool
mode.
Heat Icon Appears when the unit is operating in heat
mode.
Defrost Icon Appears when the unit is operating in
defrost mode.
High Speed Icon Appears when the diesel engine is
operating in high speed.
Cycle Sentry Icon Appears when the unit is operat-
ing in Cycle Sentry mode.
Alarm Icon Appears when the microprocessor
detects an alarm condition.
Modulation Icon Appears when the unit is operating
in modulation mode.
In-Range Icon Appears when the box temperature is
within a few degrees of setpoint.
Discharge Air Icon (Arrow pointing from unit) Dis-
charge air temperature is being shown.
Return Air Icon (Arrow pointing to unit) Return air
temperature is being shown.
Setpoint Icon Appears when the setpoint is being
shown in the lower display.
Electric Icon Appears when the unit is operating in
Electric Standby mode.
Keypad
These touch sensitive keys are used to change the setpoint,
view operating conditions and other unit information and to
control the unit.
Mode Key Allows selection of a Manual Defrost
Cycle, Cycle Sentry or Continuous Mode, Economy
Mode, Return or Discharge Air Control (on ETV
units), and Sleep Mode.
Hourmeter Key Displays Total Hours, Engine
Hours, Electric Hours and the 3 programmable hour
meters.
Gauges Key Displays Water Temperature, Oil Pres-
sure, Amps, Volts, Engine RPM, Compressor Tem-
perature (CTMP on Screw Compressor units) and
Suction, Discharge Pressure and ETV Position (on
ETV units).
Pretrip Key Allows selection of Pretrip Test, Print or
Start of Trip Marker.
AJA895
On/Off/Sleep Switch Panel