GVZC20 Service Manual

SERVICING
92
CTK04 ADDENDUM
HEAT PUMP ADVANCED FEATURE MENU
SUBMENU ITEM
INDICATION/USER
MODIFIABLE OPTIONS
COMMENTS
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S T N E MM O CME T I UN EMB U S
Time Stamp (TS)
Mode (MD)
Compressor Reduc�on Mode (CRM)
Requested and Actual % Demand (RAD)
Requested and Reported ID CFM (RAF)
Outdoor Air Temperature and Outdoor
Fan RPM (ATOF*)
Discharge Temperature and Outdoor
Coil Temperature (DCT)
Defrost sensor and Outdoor Liquid
Temperature (DLT)
Pressure Sensor (PSDST**)
DIAGNOSTICS
STATUS
Provides compressor run �me in hours.
Current system opera�on mode (COOLING, COOLING STARTUP, HEATING, HEATING STARTUP,
DEFROST, OIL RETURN, STOP).
Displays ON or OFF status. ON indicates that the reduc�
on mode is opera�ng and the compressor
is running at a lower speed than the cooling load would normally require.
Displays a 0-100% value, based on a ra�o of the requested cooling demand to what the system is
actually providing.
Compares the requested indoor airflow to what the indoor equipment has reported.
Displays the outdoor air temperature as well as the outdoor fan speed (RPM).
Displays the discharge temperature and outdoor coil temperature sensor readings.
Displays the defrost temperature sensor and outdoor liquid temperature sensor reading.
Displays the pressure sensor reading which is taken slightly upstream of the suc�on accumulator.
* Only for *VZC20** or later revision. ATPRM is shown in *VZC20** revision.
** Only for *VZC20** or later revision. PSD is shown in *VZC20** revision.