Keypad Descriptions
1. OFF Key.
Used to turn the unit off.
2. ON Key.
Used to turn the unit on.
3. SELECT Key.
Scrolls through the prompt and display
screens.
4. UP ARROW Key.
Chooses prompt screen actions or
increases setpoint or other setting.
5. DOWN ARROW Key.
Chooses prompt screen actions or
decreases setpoint or other setting.
6. DEFROST Key.
Initiates a manual defrost cycle.
7. ENTER Key.
Executes prompts or loads setpoints or other
new settings.
8. LOGO Key.
Initiates the Unit Self Check test and displays
software revision.
9. WHISPER Key.
Disables high speed diesel mode operation.
The Standard Default Display
The Standard Default
Display appears when the
unit is turned ON and no
other functions have been
selected. The box temperature appears in the upper display
and the setpoint appears in the lower display. This display
shows a box temperature of 35.8 F and a setpoint of 35 F. The
Standard Display is the starting point used to reach all other
prompts and displays. To return to this display from any other
prompts or display, wait 10 seconds and it will return
automatically.
2
1
µP-T Remote Control Features
3
4
5
9
10, 11 12
13
14
15
16
17
18
19
6
7
8
Selecting CYCLE-SENTRY or
Continuous Mode
1. Press the ON key to
turn the unit ON.
2. Press the SELECT key
to display [CYCLS] and
[YES] or [NO].
3. Press the Arrow keys to select the desired mode
[YES]=CYCLE SENTRY Mode in diesel and electric
[NO]=Continuous Mode in diesel and electric.
4. Press the Enter key to load the new operating mode
selection into the microprocessor.
IMPORTANT: The ENTER key must be pressed or the
setpoint will not be changed. The display will return to the
Standard Display and the setpoint will return to the old
setpoint in about 10 seconds if the ENTER key is not
pressed.
Starting the Engine
CAUTION: This
unit will start
automatically in
either CYCLE SENTRY
or CONTINUOUS mode after the ON key is pressed.
1. Press the ON key to turn the unit ON. If no other key is
pressed, the engine will automatically preheat and start in
about 10 seconds in either CYCLE SENTRY or CONTINUOUS
mode. If other keys are pressed (for example: to change the
setpoint or view display screens), the engine will automatically
preheat and start about 10 seconds after the last key is
pressed.
Initiating a Manual Defrost Cycle
1. The unit must be
running in either CYCLE
SENTRY or
CONTINUOUS mode and
the coil temperature must
be below 42 F (7 C). Press the Defrost key to start a manual
defrost cycle. The defrost prompt will appear in the display
when the unit starts a defrost cycle. The defrost cycle will
terminate automatically. If the unit is not running or the coil
temperature is not below 42 F (7 C), the request will be ignored.
LCD Display Descriptions
10 and 11. COOL/HEAT Icon.
This icon appears when the
unit is cooling or heating.
12.
This icon appears during a remote control panel test
but is not used on truck units.
13. CYCLE SENTRY Icon.
This icon appears when CYCLE-
SENTRY mode has been selected.
14. ALARM Icon.
This icon appears when an alarm condition
has been detected by the microprocessor.
15. ELECTRIC Icon.
This icon appears when Electric mode
has been selected.
16. WHISPER Icon.
This icon appears when Whisper mode
has been selected.
17. SETPOINT Icon.
This icon appears when the setpoint is
being shown in the lower display.
18.
These icons appear during a remote control panel test but
are not used on truck units.
19. DEFROST Icon.
This icon appears when the unit is
defrosting.
Changing the Setpoint
1. Press the ON key to turn
the unit ON.
2. Press the Arrow keys to
select the desired setpoint.
3. Press the Enter key to
load the new setpoint into the microprocessor. The display will
show “Lod” (abbreviation for LOAD) and will display for a few
seconds and then the new setpoint will reappear in the display.
