Climaveneta NECS/B 0804. Flow rate? Or Manual

I have a Climaveneta NECS/B 0804. Could someone please tell me what the pressure drop required across the Evaporator should be for chilled water flow??

Or better still does someone have the manual with these in?

Thanks very much

Hi
your wanted pressure drop is approx. 5.5 to 6 meters on the evaporator .
and 34-36 m3h of water flow.
good luck