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eature
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diAGnoSticS
SUBMENU ITEM
INDICATION/USER
MODIFIABLE OPTIONS
COMMENTS
Clear Faults
NO or YES
Selecting “YES” clears the fault history.
Fault 1
Most recent AC fault
Fault 2
2nd most recent AC fault
Fault 3
3rd most recent AC fault
Fault 4
4th most recent AC fault
Fault 5
5th most recent AC fault
Fault 6
6th most recent AC fault
StAtUS
SUBMENU ITEM
COMMENTS
Time Stamp (TS)
Provides compressor run time in hours.
Mode (MD)
Current system operation mode (COOLING, COOLING STARTUP, OIL RETURN,
STOP).
Compressor Reduction Mode
(CRM)
Displays ON or OFF status. ON indicates that the reduction mode is operating and
the compressor is running at a lower speed than the cooling load would normally
require.
Requested and Actual % Demand
(RAD)
Displays a 0-100% value, based on a ratio of the requested cooling demand to what
the system is actually providing.
Requested and Reported ID CFM
(RAF)
Compares the indoor airflow to what the indoor equipment has reported.
Outdoor Air Temperature and
Outdoor Fan RPM (ATOF)
Displays the outdoor air temperature as well as the outdoor fan speed (RPM).
Discharge Temperature and
Outdoor Coil Temperature (DCT)
Displays the discharge temperature and outdoor coil temperature sensor readings.
Outdoor Liquid Temperature
(DLT)
Displays the outdoor liquid temperature sensor reading.
Pressure Sensor and Suction
Temperature (PSDST)
Displays the pressure sensor reading which is taken slightly upstream of the suction
accumulator and outdoor suction temperature sensor reading.