Ferroli FORCE B Instrucciones De Uso, Instalación Y Mantenimiento página 146

Two mixed heating circuits, one direct heating circuit and one DHW circuit with circulating pump
- Schematic diagram
The FZ4B zone control board 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.
- Electrical connections
After installation, carry out the necessary electrical connections as shown in the wiring diagram.
Then configure the controller as described in the specific section.
146
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fig. 50
fig. 51
cod. 3541T170 - Rev. 00 - 09/2019
FORCE B
EN