Hoval RoofVent CON-9, Design Handbook

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3.4 Integration at management level with DigiBac
An automation station with BACnet communication card –
known as DigiBac – allows you to integrate the Hoval DigiNet
at management level. Communication takes place over
BACnet/IP on an Ethernet basis.
For detailed information on integration at management level,
contact Hoval customer service.
4 Zone control panel
Hoval indoor climate units are grouped into control zones,
which are controlled from the zone control panel. The
DigiZone controller:
■ controls operating modes,
■ transmits the fresh air and room temperature to the indi-
vidual units,
■ sets the output for enable heating or enable cooling and
the collective trouble indicator.
For each panel
1 fresh air sensor (cable length max. 170 m)
1 transformer 230 / 24 V
2 circuit breakers for transformer (1-pin)
1 relay
1 safety relay (2-pin, external)
Connecting terminals for:
■ Fresh air sensor
■ Mains supply
For each control zone
1 DigiZone controller
1 room air sensor (supplied)
1 relay
Connecting terminals for:
■ Room air sensor
■ Enable heating
■ Trouble input heating
■ Collective trouble indicator
■ novaNet system bus
Table L6: Contents of the zone control panel
Caution
Danger of electric shocks. Ensure that overcurrent
protection equipment is installed onsite for the mains
connection line.
Fig. L5: View of the inside of the zone control panel
Control systems
Zone control panel