chiller connection

06:24 Jan 30, 2017 

Please note very carefully the syntax in the original, which is of vital importance here, both for correct understanding and also for accurate translation!
The source text says quite clearly: "a ... chiller needs to be connected to the ... condenser unit"

I.e. A chiller (= external accessory) must be connected to THE condenser (that is built into this equipment).

Hence 'un' and then 'au' — nothing else will do here!

12:15 Jan 25, 2017 

I didn't say that! That was specifically my point: IF this had been a conventional condenser / evaporator refrigerant connection (which it is NOT!) then it WOULD have been pressurized (which would be highly inconvenient!).

Here, 'condenser' is being used with a slightly different meaning, which is I think what is getting people confused.

12:11 Jan 25, 2017 

It's just that that chiller has to be connected to the condenser :)
Connection of the chllier to the condenseur.
Whay do you say the chiller is pressurized Tony ? AFAIK it's not....at least the one we have in the lab.

12:01 Jan 25, 2017 

Sorry, there's not enough space in peer comments to explain the situation here.
Having researched the actual equipment here, we find that it is not at all the same thing as a classic refrigeration or chiller plant, as one might find in a conventional HVAC or industrial refrigeration installation.

Here, the 'chiller' unit is more akin (albeit vastly more sophisticated!) to a conventional domestic self-contained aircon unit: it already contains its own closed-circuit condenser / evaporator refrigeration system, and the 'condenser' mentioned in the source text appears to be more of a simply heat exchanger; in certain models of chiller, the fluid connection in fact carries process fluid, not refrigerant. However, I imagine here in this special SUF application there may be some intermediate 'fluide frigoporteur', but which is not refrigerant; if you think about it, it would be awfully inconvenient having a disconnectable refrigerant connection in a system that would normally be pressurized!