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cycling switch(low pressure cutout)

archie on Sat November 21, 2015 9:47 PM User is offline

Year: 1990
Make: chevy
Model: astro van
Engine Size: 4.3l
Refrigerant Type: r134a
Country of Origin: United States

my question is, do cycling switches come pre adjusted? if not, what is the procedure to adjust?

Dougflas on Sun November 22, 2015 12:51 AM User is offline

they should come already adjusted. Some are not adjustable at all. Typically, with R134, they should cut out at approx 21 to 24 psi and cut in at 45 psi.

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