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EN/06.2021/G23 © STULZ GmbH – all rights reserved
minispace cw original instructions
5.4 Water piping connection
external water circuit
To close 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.
• read the thread size and the diameter of the chilled water lines out of the
drawings on the following pages, to establish the lines between the external
system and the A/C unit.
• take the position of the connections out of these drawings, to conduct the
lines to the unit.
noTICe
Water remaining from the test run may escape when the protective caps
are removed.
• remove the protective caps or sealing disks of the screwed connections.
• screw the lines of the external system to the lines of the unit respecting the designation at the unit (inlet/
outlet).
• insulate the water pipes with the diffusion tight insulating material, to prevent the introduction of ambient air
heat and the formation of condensate at the pipes.
noTICe
Respect material compatibility in the whole hydraulic circuit, when installing additional
components.
Connection with external thread
DAnGer
Mortal danger by electric hazard
Do not connect the power supply until the installation work has been completed. Secure the
main switch against being switched on again.
