OMEGA-VSHPe.F-IOM-2205
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9. An event log feature called Log Dump allows for re-
cording unit operation information during faults or at start
-up as a troubleshooting aid. For example in the figure
below the first line item indicates “Y” terminal was ener-
gized (Y=1) when the Cooling (CLG=1) and tripped on
Low Pressure fault (LP=0).
Captured unit controller details indicate a binary value (0
or 1) to signify if there was a call or not for that parame-
ter. These include:
Y = call from thermostat to Y terminal
O/B = call from thermostat to O/B terminal
CPR = compressor ON or OFF
RV= reversing valve energized or de-energized
HTG = call for heating
CLG = call for cooling
LP = low pressure fault
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