Groupe Atlantic NEOFIRST Serie Installation, Betrieb Und Wartung Seite 23

5.3.2. Safety valves:
The safety valves used must comply with EN 1489 in order to provide the necessary
protection for DHW appliances.
The safety valves are fitted to the tank inlet using a T (see diagram below).
On cold water inlet only
1 single G 1¨ unit
No non-return valve or flap should ever be fitted between the safety valve or safety unit
and the tank.
A non-return flap preceded by a valve must be fitted to the cold water inlet if the tank is
equipped with a safety valve. To avoid scaling of these components, operate the safety unit
at least once a month by moving its controls to various positions.
5.4. Hydraulic connection diagram
See Appendix A page 91.
08.11.2024
SAFETY UNIT
1¼¨ kit with 2 G 1¨ units
NEOFIRST / NEOMIX / NEOFLOW
SAFETY VALVE
On tank inlet
Valve diameter ≥
tank connector diameter
Safety valve/non-return flap/valve
Page 23 / 108
EN