Hi guys, i am a newbie and this is my first post. As you can see i'm from Belgium and not familiar with english writing. So if i make some stupid phrases don't kill me

I have trouble with a carrier 30HXC190 chiller, equipped with screw 06N, watercooled and flooded evap., french design. Control is a Pro Dialog phase 3.
The machine has brazed plate heat exchangers (BPHE) used as subcoolers, same principle as closed economisers.

One side of the BPHE is used to subcool the liquid from the condensor the other side is used with an exv (danfoss TQ) to evaporate and the exit (superheated) gas is fed to the economiserport to cool the compressor motor.

Is there anywone who has experience with those BPHE subcoolers and can give me a approx temp differential subcooling (degree K) hat they can generate across the liquid side from the exchanger?

Where are the specialists? Please let me know.

Thanks in advance even for only reading this.

Greetings, dave007