Porsche early A/C design tutorial...or NOT.

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08-30-2010, 12:52 PM

#16

wwest

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"...lower is better.."

But wouldn't that result in a longer duty cycle for the compressor, running a higher % of the time vs high(er) pressure...??

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08-30-2010, 01:06 PM

#17

griffiths

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Quote:

Originally Posted by wwest

"...lower is better.."

But wouldn't that result in a longer duty cycle for the compressor, running a higher % of the time vs high(er) pressure...??

The time that the compressor operates, on your model, is based upon the thermostat. How many hours a year do you think your compressor clutch will be engaged?

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09-02-2010, 08:42 PM

#18

Mazinger

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Thanks, but question:

When the evaporator makes the "Shhhhh" sound, is this at the same time when the compressor runs?

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09-02-2010, 09:11 PM

#19

griffiths

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Quote:

Originally Posted by Mazinger

Thanks, but question:

When the evaporator makes the "Shhhhh" sound, is this at the same time when the compressor runs?

I could not tell you without hearing it, that sound could be anything from air moving through the coil, the evap fan motor, a leak, ice (moisture) in an expansion valve.

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09-03-2010, 12:43 PM

#20

wwest

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I only really hear the evaporator "sound" shortly after shutting the engine down and the remaining liquid refrigernat continues to exhaust into the evaporator via the expansion valve.

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