Cut in/out temps on refrigeration.

[lugnut]

Have a reach in refrigerator and a walkin refrigerator that I took accurate readings on recently.

Cut in temp on the reach in = 33 degrees, cutout=43 degrees. (10 degree diff) 10 year old box.

Cut in on the walk in = 38 degrees, cutout=39 degrees. (1 degree diff) Box installed new 2007.

I believe they are both operating at undesireable cut ins and cut outs. Do you agree?

Note I have minimal experience to draw on and am looking for someone to agree me, at least in the text book sense. They should both have 3 to 5 degree differentials, right? FYI, they are both running fine, no problems. (Except the reach-in will skip a off cycle defrost once every 2 months, but it is not a problem other than that).

[nightranger121]

I like to see 37 +/- 3,
or
c/I @40
c/o @34

[itsiceman]

Have a reach in refrigerator and a walkin refrigerator that I took accurate readings on recently.

Cut in temp on the reach in = 33 degrees, cutout=43 degrees. (10 degree diff) 10 year old box.

Cut in on the walk in = 38 degrees, cutout=39 degrees. (1 degree diff) Box installed new 2007.

I believe they are both operating at undesireable cut ins and cut outs. Do you agree?

Note I have minimal experience to draw on and am looking for someone to agree me, at least in the text book sense. They should both have 3 to 5 degree differentials, right? FYI, they are both running fine, no problems. (Except the reach-in will skip a off cycle defrost once every 2 months, but it is not a problem other than that).Yes I do agree. very undesirable for coolers the way you wrote it.
C.I.<---->C.O. are backwards ;)

It all depends what you are sensing as to where you might set the t-stat.

If like you said they are not broke
don't fix them ;)

Sorry but there are no magic settings or rules of thumb.

[ar_hvac_man]

I like to see 37 +/- 3,
or
c/I @40
c/o @34

Thats about where i keep mine.

[lugnut]

Thanks for the replys. Just bought a data logger and was putting it to good use.