Hi, all

Looking for something else came to this page:

http://www.bock.de/en/AboutUs_Overview.html

Refrigeration circuit: this is good
http://www.bock.de/en/Refrigeration_circuit.html

Converter:
http://www.bock.de/en/Conversion_functions.html

also other interesting things...

Hope you will enjoy.

Best regards, Josip