So I’m having trouble finding this part. It’s off my 66 coupe for the A/C. I don’t know much about it. I can’t find this pet that has the same rates as this one. I found one that the LP is 3.0. I’m not trying to freeze the system would a 3.0 for the LP work??
i dont know what lp 3.0 is but if your asking low pressure shut off at 3 psi then no. The low pressure switch should shut off the compressor at no less than 20 psi minimum.