Originally Posted By: ekpolk
In "traditional" systems, the MAX setting would cause the compressor to run all the time (or cycle on more than it would have)
Not on any system I have ever looked at. MAX turns on recirc and turns on the AC compressor, the cycling of which continues to be governed by the low-pressure cutoff switch which keeps the evaporator coil from freezing up.
If anything, using MAX will cause the compressor to cycle more and run less because the air passing by the evaporator is cooler. Using a lower fan speed will also cause the compressor to run less often because the slower speed of the air adds less heat to the evaporator, keeping it closer to the cut-off temperature.
Quote:
Note well that you can use the RECIRC setting in the winter to keep warm air in and various noxious odors/fumes out.
You may well end up with fogged windows if you try this.
In "traditional" systems, the MAX setting would cause the compressor to run all the time (or cycle on more than it would have)
Not on any system I have ever looked at. MAX turns on recirc and turns on the AC compressor, the cycling of which continues to be governed by the low-pressure cutoff switch which keeps the evaporator coil from freezing up.
If anything, using MAX will cause the compressor to cycle more and run less because the air passing by the evaporator is cooler. Using a lower fan speed will also cause the compressor to run less often because the slower speed of the air adds less heat to the evaporator, keeping it closer to the cut-off temperature.
Quote:
Note well that you can use the RECIRC setting in the winter to keep warm air in and various noxious odors/fumes out.
You may well end up with fogged windows if you try this.