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Old 11-05-2014, 11:44 AM   #42
billwot
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Quote:
Originally Posted by Tcoat View Post
The great part is everybody will disconnect it and then we will start getting all sorts of posts that say "windshield keeps fogging up what can I do?".
Quote:
Originally Posted by CoupedUpSubie View Post
It is actually more beneficial for any refrigeration system to run on occasion then sit. It helps keep moisture out and the seals wet so they don't fail. I would hate to have to buy a new A/C compressor a couple years down the road.

Someone said something about electrical load. The only electrical load the compressor has is the small amount for the clutch, the rest is the mechanical load of compressing something to upwards of 400 psi.

High side operating pressure for a 134A system will typically be around 200-225 on a 90F day. But the low side will still be about 30, so the actual pumping load (pressure differential across the compressor) will be about 175-200. The system high pressure switch is probably set at 250, maybe 300.

I agree with the rest of your post.
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