Quote:
Originally Posted by secondchance
High pressure switch for 134a opens (and open is fan run position) at 240 psi or close to it - high pressure switch for R-12 will not work correctly. Also, high pressure switch for 134a is almost none existent.
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Thanks for the detail. I certainly understand the higher pressures in 134A. When you say "high pressure switch for 134A is almost non-existent", what does this imply? Do you mean they aren't available?
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