Plate chiller routing - Plz help identify

[brewswithshoes]

Quick question. I picked up a cheap plate chiller on Craigslist as not happy with the CFC change I made, and want to expirement with something else.

I didn't really notice when I picked it up that there are no markings for wort or water. (Well, there is 1 kinda arrow indention to the top right, but no word designation)

Question is, does any one know which is wort and which is water? Or does it even matter?

Pic of front attached. There is literally no words or marking on the back either.

 

[tll77]

Start by taking the barb fittings off.
Generally the water side has garden hose thread while the wort side has NPT.
From the pic it appears that the right side is the wort side, but you should take off the barbs to confirm.

 

[brewswithshoes]

That's the weird thing with this one. All the threading sizes are the same.

I tried hooking up to water to see if any hop or other residue came out of either. Good thing on cleanliness is that it was Crystal clear water out of both, but didn't tell me which was used for wort/water.

Does it mean something if all 4 threadings are the same?

 

[tll77]

It shouldn't really matter then which side you use for wort and which you use for water. But, label it for future reference.

 

[day_trippr]

It actually should matter which set of channels are for water and which for wort, as you want the wort channels to be surrounded by the water channels.
It'd be a bit tricky to figure out which flow path includes the outermost channels, but I suspect if you run hot water through one flow path and don't immediately detect warming on the outside plates, that's probably the wort path, one plate-pair away on each side...

Cheers!

[edit/fwiw] This simplified Dudadiesel illustration shows the coolant path encompasses the outside channels...