Instruction manual

37
Instructions for the installer
3.21 - INSTALLATION EXAMPLES (Functional diagram)
Boiler connection to the heating system, with 1 direct high temperature heating zone
CH SYSTEM
HIGH TEMPEARTURE
EXPANSION
VASSEL
BOILER PKX
BOILER
SENSOR
NB: In case of a single system return (low or
medium temperature), the connection must
ALWAYS be carried out on the inlet and the
lower back of the boiler (stub "low-temperatu-
re system return").