Operation - Gruppo Ferroli FZ4B Instrucciones De Uso E Instalación

EN

4. OPERATION

The board FZ4B is a zone controller that can be confi gured in several ways.
There are six main confi gurations:
1. "Stand Alone 1" confi igurations without DHW
This means that the board FZ4B works alone, without the OpenTherm connection to the boiler.
To request heat, it will use the relay of card SK connected to connector X15.
Connecting one or more Remote Controls: the functions associated with the DHW settings will be ignored (the DHW setpoint must be 0°C and the DHW sensor "- -"); the board FZ4B must
send the heating bits to activate the remote control icons. The min. and max. Setpoint limits are provided by board FZ4B.
2. "Stand Alone 1" confi igurations with DHW (On system)
This means that the board FZ4B works alone, without the OpenTherm connection to the boiler.
To request heat, it will use the relay of card SK connected to connector X15; to know the temperature of the hot water tank, hydraulically connected in parallel to heating zones, it will use
input T2.
Connecting one or more Remote Controls: the functions associated with the DHW settings will be managed in parallel; the board FZ4B must send the heating and DHW bits to activate the
remote control icons. The min. and max. Setpoint limits are provided by board FZ4B. The DHW information will be T2. The economy/comfort function of each remote control will act on
the DHW mode of the board FZ4B.
3. "Stand Alone 2" confi igurations without DHW
This means that the board FZ4B works alone, without the OpenTherm connection to the boiler.
To know the delivery temperature it will use input T3; to demand heat it will use the relay of card SK connected to connector X15.
Connecting one or more Remote Controls: the functions associated with the DHW settings will be ignored (the DHW setpoint must be 0°C and the DHW sensor "- -"); the board FZ4B must
send the heating bits to activate the remote control icons. The min. and max. Setpoint limits are provided by board FZ4B. The heating sensor information will be that of input T3.
4. "Stand Alone 2" confi igurations with DHW (On system)
This means that the board FZ4B works alone, without the OpenTherm connection to the boiler.
To know the delivery temperature it will use input T3; to demand heat it will use the relay of card SK connected to connector X15; to know the temperature of the hot water tank, hydraulically
connected in parallel to heating zones, it will use input T2.
Connecting one or more Remote Controls: the functions associated with the DHW settings will be managed in parallel; the board FZ4B must send the heating and DHW bits to activate the
remote control icons. The min. and max. Setpoint limits are provided by board FZ4B. The heating sensor information will be that of T3; whereas that of the DHW will be T2. The economy/
comfort function of each remote control will act on the DHW mode of the board FZ4B.
5. "Communicating" confi gurations with DHW (Integrated in boiler)
This means that the board FZ4B works alone, with the OpenTherm connection to the boiler.
To know the delivery temperature, demand heat and to know the temperature of the hot water tank, connected in the boiler, it will use the OpenTherm protocol.
Connecting one or more Remote Controls: the functions associated with the DHW settings will be managed in parallel; the board FZ4B must transfer the heating, DHW and power bits to
activate the remote control icons coming from the boiler board. The min. and max. heating Setpoint limits are provided by board FZ4B; those of the DHW will be supplied by the boiler board.
It must send the room temperature detected by the Remote Control RT1 to the boiler board; in case of no Remote Controls, it must send the value 25°C the boiler board. The economy/
comfort function of each remote control will act on the DHW mode of the boiler board.
6. "Communicating" confi gurations with DHW (On system)
This means that the board FZ4B works alone, with the OpenTherm connection to the boiler.
To know the delivery temperature and demand heat it will use the OpenTherm protocol. To know the temperature of the hot water tank, hydraulically connected in parallel to heating zones,
it will use input T2.
Connecting one or more Remote Controls: the functions associated with the DHW settings will be managed in parallel; the board FZ4B must transfer the heating, DHW and power bits to
activate the remote control icons coming from the boiler board. The min. and max. Setpoint limits are provided by board FZ4B. It must send the room temperature detected by the Remote
Control RT1 to the boiler board; in case of no Remote Controls, it must send the value 25°C the boiler board. The economy/comfort function of each remote control will act on the DHW
mode of the board FZ4B.
CONTROLLO ZONE FZ4B
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