AC Shedding
Bought a 2007 Terra LX 31M, going through all the bells and whistles, lot of little fixes. Can't figure out from the manual why the front ac sheds. If I just turn on the front AC, it just sheds, but i...
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Devoredude wrote:robsouth wrote:Devoredude wrote:
the front ac sheds. If I just turn on the front AC, it just sheds
What does "sheds" mean?
The system "sheds" power if it detects lack of amperage to run, or so I am led to believe.
The ECC system will shed (remove power from) one of the A/C compressors if it detects that the coach is drawing more than 30amps through the main breaker. If the power draw remains above 30amps it will shed the other compressor. When the draw drops below 30amps, the system will allow the units to attempt to restart.
When running from the generator, the FRONT A/C unit is fed from the 20amp output of the generator and the REAR A/C is fed (along with all other circuits) from the 30amp gen output, through the main breaker.
It's not unusual for the ECC controller to temporarily get confused under generator operation as the controller is getting it's ac-volts from the 30amp output and the front A/C compressor is getting it's ac-volts from the 20amp output.
