
22
EN/02.2018/G17F © STULZ GmbH – all rights reserved
cyberlab original instructions
5.3.2 Condensate drain connection
upflow unit
, view of the right side
In upflow units the syphon is already installed
and exits in the middle section, right bottom.
Syphon installation
Ensure that there is a sufficient height difference between
the fan pan and the upper bow of the syphon or the high-
est part of the drain tube, in order to avoid a water column
in the drain syphon caused by the pressure in the suction
area of the A/C unit, which prevents the draining of the
condensate water
Example:
Static pressure in the suction area: –300 Pa
h = p / (
r
∙ g)
h = –300 Pa / (1000 kg/m³ ∙ 10 m/s²)
h = –3 cm