Helios KWL HB serie Montage- Und Betriebsvorschrift Seite 73

Installation and Operating Instructions
KWL Hygrobox KWL HB.. EH/WW
An "external temperature sensor" should
be installed into the supply line, about 50
cm after the aux. heater battery. In case
of low-temperature heating, the Hygro-
Box can also be integrated directly into
32
the heating system without mixer and
external sensors. The supply air tempe-
rature is then not actively regulated.
Shut-off valve
Expansion tank
Mixer
Drain valve
Autom. vent valve
Pump
EN