low pressure cut - in / cut - out

[mangyan]

Low pressure switch is an optional acess. on my outdoor unit. It is a 12 years old Carrier Heat Pump Model #
38AY060300. I want to install a low pressure switch. What pressure range (cut-in/cut-out) should in install? Thank you in advance.

[smokin68]

I'd have it cut out at 50psig,cut in above this.Under 58 psig you're going to start icing the evap.