Looking for some AC expertise!! I mean I need an air conditioning wizard! 🧙‍♂️ I have a 94 K2500 Suburban with rear heat and air—rear controls. Old school fan clutch. Brand new compressor, condenser, accumulator, front orifice tube, fresh o-rings all around, rear expansion valve, compressor mounted ...

Can anyone here explain to me how you adjust the low pressure cycling switch that’s accumulator mounted?

I have a 94 Suburban k2500.

This is the first time I’ve heard of adjusting the switch.

Thank you,
Sawlty