Stulz ASU series - 5.3 Water Piping Connection

19 © STULZ GmbH – all rights reserved EN/06.2017/G18D
cyberair 3PrO cw2 Original instructiOns
5.3 Water piping connection
External water circuit
To seal the water circuit you must connect the unit to a chilled water ring mains, which contains either a chiller
or a dry cooler or cooling tower for the generation of cold water. If the water quality is insufficient, install a fine
mesh strainer at the water inlet of the A/C unit.
Connecting the A/C unit to the external system
The water connections end with an external thread.

drawings in chapter 5.3.1 for Downflow units resp. 5.3.2 for Upflow units, to
establish the lines between the external system and the A/C unit.

lines to the unit.

Connection with external thread
NOTICE
Water remaining from the test run may escape when the protective caps
are removed.

outlet).

heat and the formation of condensate at the pipes.
NOTICE
Respect material compatibility in the whole hydraulic circuit, when installing additional
components.