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28-07-2006, 10:50 PM #1
Superheat Correction facter for R12-TXV - R134a?
Ok I have a Singer M:207C TXV for R-12 (Same as the american Control company TXV) it comes preset to 9F (-12C) superheat.
It is a 6,000BTU/hr unit (1.76 KW/hr) liquid cross charged head internaly equilized
I'm thinking I need to set the super heat higher for it to work correctly with R-134a correct?
Thanks guys for any Help.
Head pressure during pull down is 150PSI
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