System Water Filling; Dhw System - Ferroli NATURFIRE EVO serie Anleitung Für Betrieb, Installation Und Wartung

5.5.4.1. SYSTEM WATER FILLING

After carrying out the plumbing connections, it is possible to fill the unit and system:
Step Action
1 Open all the shut-off and air vent valves of the radiators - manifolds - boiler and
system.
2 Open the water filling cock gradually, making sure the vent valves work properly.
3 Fill the system slowly, to allow proper and complete evacuation of the air from
the vent, bringing the circuit under pressure (for a closed vessel system from 1.1
to 1.5 bar).
4 When finished, close the filling cock and make sure all vent valves have
discharged the air from the system.
5 To display the boiler's water circuit pressure, just press the control panel button
P5 for 3 seconds.
The creation of a heating system with installation of the boiler must comply
with all the applicable regulations in the country where the system is installed.

5.5.4.2. DHW SYSTEM

To connect the boiler to a DHW system, it is advisable to see a qualified technician in order
to best optimise the plumbing connections and the performance of the entire system without
compromising unit functionality.
One of the following optionals must be requested for the connection to the DHW circuit:
▪ a 3-way valve for installing outside the boiler,
▪ or hydraulic separation module to be installed outside the boiler.
After completing the DHW connection it is necessary to access the technical menu of the
controller and select the type of circuit; every specific DHW function set: DHW EXCHANGER/
FLOW SWITCH, BOILER (PUFFER) or DHW BOILER appears on the display at the moment
of heating-DHW switchover with one of the messages and remains until the end of the DHW .
70
NATURFIRE EVO 27 - 34
cod.48427M013_11/19
EN