Carrier 69NT40-541-500 Operation And Service Manual page 59

CODE TITLE
Cd19 Battery Check
Cd20 Config/Model #
ML3 - Humidity
Cd21 Water Pump/Air
Pump Status
Cd22 Compressor State
Evaporator Fan
Cd23
State
Controlled
Cd24
Atmosphere State
Time Remaining
Cd25
Until Defrost
Defrost
Cd26 Temperature
Sensor Reading
Table 4–5 Controller Function Codes (Continued)
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 voltages
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.
This code indicates the dash number of the model for which the Controller is con
figured (i.e., if the unit is a 69NT40541100, the display will show 41100). To dis-
play controller configuration database information, press ENTER. Values in
CFYYMMDD format are displayed if the controller was configured with a configu-
ration card or with a valid OEM serial port configuration update; YYMMDD rep re-
sents the publication date of the model configuration database.
This code displays the status of the humidity water pump (-----, On, or OFF). If not
configured, the mode is permanently deactivated and will display -----.
The status of the compressor is displayed (high, low or off).
Displays the current evaporator fan state (high, low or off).
Displays the controlled atmosphere state (-----, On or Off).
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.
Defrost Temperature Sensor (DTS) reading is displayed.
4–27
DESCRIPTION
T-363