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T-359
4–26
Cd19
Battery Check
This code checks the Controller/DataCORDER battery pack. While the test is run-
ning, “btest” will flash on the right display, followed by the result. “PASS” will be dis-
played for battery voltages greater than 7.0 volts. “FAIL” will be displayed for battery
voltages between 4.5 and 7.0 volts, and “-----” will be displayed for battery volt ages
less than 4.5 volts. After the result is displayed for four seconds, “btest” will again be
displayed, and the user may continue to scroll through the various codes.
Cd20
Config/Model #
This code indicates the dash number of the model for which the Controller is config-
ured (i.e., if the unit is a 69NT40-551-100, the display will show “51100”). To display
controller configuration database information, press ENTER. Values in “CFYYM-
MDD” format are displayed if the controller was configured with a configuration card
or with a valid OEM serial port configuration update;
YYMMDD
represents the publi-
cation date of the model configuration database.
Cd21
Capacity Mode
The mode of operation is displayed (Unloaded - Standard - Economized).
Cd22
Compressor State The status of the compressor is displayed (Off, On).
Cd23
Evaporator Fan
Displays the current evaporator fan state (high, low or off).
Cd25
Compressor Run
Time Remaining
Until Defrost
This code displays the time remaining until the unit goes into defrost (in tenths of an
hour). This value is based on the actual accumulated compressor running time.
Cd26
Defrost
Temperature
Sensor Reading
Defrost temperature sensor reading is displayed.
Configurable Functions
NOTE
Function codes Cd27 through Cd37 are user-selectable functions. The operator can change the
value of these functions to meet the operational needs of the container.
Cd27
Defrost Interval
(Hours or
Automatic)
There are three modes for defrost initiation: user-selected timed intervals, automatic
control, and PuLs. The user-selected values are (OFF), 3, 6, 9, 12, 24 hours, AUTO,
or PuLs. The factory default is AUTO. Automatic defrost starts with an initial defrost
at three hours, then the interval to the next defrost is adjusted based on the accumu-
lation of ice on the evaporator coil. Following a start-up or after termination of a de-
frost, the time will not begin counting down until the defrost temperature sensor (DTS)
reading falls below set point. If the reading of DTS rises above set point any time
during the timer count down, the interval is reset and the countdown begins over. If
DTS fails, alarm code AL60 is activated and control switches over to the return tem-
perature sensor. The controller will act in the same manner as with the DTS except
the return temperature sensor reading will be used. For information on PuLs, refer to
Defrost Pulsing
Defrost Interval Timer Value (Configuration variable CnF23):
If the software is config-
ured to “SAv” (save) for this option, the value of the defrost interval timer will be saved
at power down and restored at power up. This option prevents short power interrup-
tions from resetting an almost expired defrost interval, and possibly delaying a need-
ed defrost cycle.
NOTE
The defrost interval timer counts only during compressor run time.
Cd28
Temperature
Units (C or F)
This code determines the temperature units (C or F) that will be used for all tempera-
ture displays. The user selects C or F by selecting function code Cd28 and pushing
the ENTER key. The factory default value is Celsius units.
NOTE
This function code will display “-----” if CnF34 is set to F.
Table 4–5 Controller Function Codes (Continued)
CODE #
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