Ferroli FORCE W Serie Instructions D'utilisation, D'installation Et D'entretien page 221

FORCE W
Two mixed heating circuits, one direct heating circuit and one DHW circuit with circulating pump
- Schematic diagram
The zone control card FZ4B can manage different types of systems. An example is given.
Use diverter valves with 3 wires:
- 230V OPENING PHASE
- 230V CLOSING PHASE
- NEUTRAL
with switching times (from all closed to all open) of not more than 180 seconds.
fig. 49
221
EN
cod. 3541Q764 - Rev. 00 - 05/2021