Somebody on here gave me the idea a few days ago and an opportunity presented itself today to maybe try it.
The subject is Norlake 40º walk-in. About 6' by 6' with what looks like a 1/3HP tin can compressor on it. OK; so maybe it's a 1/2 HP. <g>
The same sized freezer actually does have a 1/2 HP on it - but at least the freezer has an iron body compressor on it.
So anyway; on the 40º walk-in the defrost timer is defective - so the evap was frozen. Temp control is with a standard Penn remote bulb. I can't get enough differential to get away with just sticking that bulb into the fins - so how about a Ranco constant-cut-in stat? They are rated for 16 amps so the compressor load is OK for it.
Can anybody see a reason why I Can't just resolve this coil freezing issue with a constant-cut-in control stat? And not bother replacing the timer.