Table 3-5 Controller Function Codes - Carrier 69NT40--541--200 TO 299 Operation And Service

Code
TITLE
No.
Note: If the function is not applicable, the display will read "-- -- -- -- -- "
Suction Modulation
Cd01
Valve Opening (%)
Cd02 Quench Valve
Cd03 Not Applicable
Cd04 Line Current,
Phase A
Cd05 Line Current,
Phase B
Cd06 Line Current,
Phase C
Cd07 Main Power Voltage
Main Power Fre-
Cd08
quency
Ambient Tempera-
Cd09
ture
Compressor Suction
Cd10
Temperature
Compressor Dis-
Cd11
charge Temperature
Compressor Suction
Cd12
Pressure
Cd13 Condenser Pressure Condenser pressure transducer reading is displayed.
Compressor Dis-
Cd14
charge Pressure
Unloader Valve (On--
Cd15
Off)
Compressor Motor
Cd16
Hour Meter
Relative Humidity
Cd17
(%)
Cd18 Software Revision #
Cd19 Battery Check
Cd20 Config/Model #
Humidity Water
Cd21 Pump/Atomizer
Status
T-317
Table 3-5 Controller Function Codes (Sheet 1 of 4)
Display Only Functions
Displays the SMV percent open. The right display reads 100% when the valve is
fully open and 0% when the valve is fully closed. The valve will usually be at 21%
on start up of the unit except in very high ambient temperatures.
Displays state of the solenoid quench valve, open or closed.
Not used
The current sensor measures current on two legs. The third unmeasured leg is
calculated based on a current algorithm. The current measured is used for control
and diagnostic purposes. For control processing, the highest of the Phase A and
B current values is used for current limiting purposes. For diagnostic processing,
the current draws are used to monitor component energization.. Whenever a
heater or a motor is turned ON or OFF, the current draw increase/reduction for
that activity is measured. The current draw is then tested to determine if it falls
within the expected range of values for the component. Failure of this test will re-
sult in a pre-trip failure or a control alarm indication.
The main supply voltage is displayed.
The value of the main power frequency is displayed in Hertz. The frequency dis-
played will be halved if either fuse F1 or F2 is bad (alarm code AL21).
The ambient sensor reading is displayed.
Compressor suction temperature sensor reading is displayed.
Compressor discharge temperature sensor reading is displayed.
Compressor suction pressure transducer reading is displayed.
Compressor discharge pressure transducer reading is displayed.
Not used in this application
Records total hours of compressor run time. Total hours are recorded in incre-
ments of 10 hours (i.e., 3000 hours is displayed as 300).
Humidity sensor reading is displayed. This code displays the relative humidity, as
a percent value.
The software revision number is displayed.
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
displayed 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 69NT40-541-100, the display will show "41100").
This code displays the status of the humidity water pump (-- -- -- -- -- , forward, re-
verse or off). If not configured, the mode is permanently deactivated and will dis-
play "-- -- -- -- -- ."
DESCRIPTION
3-14