DIYbanter - View Single Post - if an A/C is low on freon, does it use more energy or not?

dpb

DT wrote:
In article , says...
wle wrote:
oh wait
this makes it sound like it could be using less power..
...

But the efficiency isn't as good...don't you think if the overall
efficiency were better the manufacturer would design it to run there?

No, because when it is slightly undercharged, the suction pressure is less,
lowering the temperature at the evaporator. It runs quite cold for a while,
then ices over. It needs to run with the evaporator at the design temperature.

That's what I was alluding to...

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