5-2
USER INTERFACE
Model C300
User Interface
5
This display will remain on the LCD for 60 seconds
unless a key is pressed. If any key is pressed (or 60
seconds pass), then the next screen appears.
Note: Syrup, CO
2,
and water are satisfied.
Pressing the AUTO (- ->) keys on both sides of the unit
will display this screen.
Line 1 indicates the operating mode for each freezing
cylinder.
Line 2 indicates the status of the syrup systems in each
freezing cylinder. As long as syrup is available, the word
OK will appear on the LCD. When the syrup supply is
insufficient, the word OUT will flash on the LCD. The
same rules apply to the fourth line, which indicates the
status of the CO
2
and the H
2
O.
The third line of this display is a fault indicator. If an error
in machine operation occurs, the word FAULT will be
displayed on the LCD.
Operator Menu Display
The OPERATOR MENU is used to enter into the
operating screens. To access the OPERATOR MENU,
simply press the MENU (SEL) key. The cursor will flash
under the letter A, indicating that this is screen A. To
select a different screen, use the AUTO (- ->) and OFF
(<- -) keys to move the cursor to the desired screen
selection and press the MENU (SEL) key.
Operator Menu Timeout
If the display is left in the operator menu or any of the
operator menu selections, except for Current Conditions,
the display will return to the system mode screen 60
seconds after the last key press. The Current Conditions
screen will be displayed until manually changed.
Finding Current Fault Conditions
Screen B—FAULT DESCRIPTION
The fault description will indicate if there is a fault in one
of the freezing cylinders. When the actual fault is
corrected, the warning tone will stop. Only BRL NOT
COOLING shown in table 5-1 requires pressing the OFF
(<- -) key to clear the fault message and the warning
tone.
Table 5-1
The following are explanations of the possible faults and
the display screens. Fault messages 2 and 3 indicate the
faults found in freezing cylinders 1 and 2 respectively.
OFF MODE OFF
OK SYRUP OK
KO-RETAWKO-2OC
AUTO MODE AUTO
OK SYRUP OK
KO-RETAWKO-2OC
BEATER MODE BEATER
OUT SYRUP OUT
--TLUAF----TLUAF--
TUO-O2HTUO-2OC
Fault Messages
No Fault Found No fault conditions are
apparent.
Beater Overload Beater is out on overload.
Chk Refrig Sys Psi Compressor is out on high
head pressure.
Thermistor Short Shorted thermistor probe.
Thermistor Open Open thermistor probe.
Syrup Pressure Low Syrup is no longer present.
CO2 Pressure Low CO
2
pressure is low.
H2O Pressure Low Water pressure is low.
BRL Not Cooling Freezing cylinder is not cooling
after 5 minutes.
BRL Temp 2 High Freezing cylinder temperature
is above 120°F (49°C).
OPERATOR MENU
A
BCDEFGHI
EXIT MENU
LES>----<
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