62-12002 24
13. Unit Data (continued)
The following is a list of definitions for the acronyms used in the display.
Unit Data Codes
Data Definition
Sensors
AMB Ambient Air Temperature (entering condenser)
RAT Return Air Temperature (entering evaporator)
RRAT Redundant Return Air Temperature (entering evaporator)
SAT Supply Air Temperature (leaving evaporator)
DL-T Delta-T. Supply air temperature minus return air
temperature (negative value indicates cooling and a
positive value indicates heating).
DTS Defrost Termination Temperature
RS1* Remote Sensor 1
RS2* Remote Sensor 2
RS3* Remote Sensor 3
Meters
SBY Electric Hour Meter
SON Switch On Hour Meter
HS High Speed Cycle Counter
STRT Start Cycle Counter
ENG Engine Hour Meter
MENG** Maintenance Engine Hour Meter
MSBY** Maintenance Standby Hour Meter
MSON** Maintenance Switch On Hour Meter
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