Three Direct Zones And One Hot Water Tank - With External Sensor - Gruppo Ferroli FZ4B Instrucciones De Uso E Instalación

EN
On/Off Thermostat or Remote Control (RT2)
22
On/Off Thermostat or Remote Control (RT3)
23
On/Off Thermostat or Remote Control (RT3)
24
NTC sensor (T2)
27
NTC sensor (T2)
28
Card SK connected
X15
5.22.1 On/Off Thermostat
The algorithm of the Direct zones remains the same as the confi guration: 5.6 "THREE Direct Zones – No External Sensor".
The algorithm of the Hot water tank remains the same as the confi guration: 5.17 "ONE Hot water tank".
What changes is:
a. DHW has priority over Heating: the Hot water tank Priority parameter (TSP25) is equal to 0.
During DHW mode, the algorithm of the Hot water tank has the highest priority.
During DHW mode, the zone request (if occurring) must be stopped without doing post-circulation. At the end of DHW mode, the zone request (if occurring) must
restart with the normal algorithm.
b. DHW does not have priority over Heating: the Hot water tank Priority parameter (TSP25) is equal to 1.
In case of simultaneous request, the Zone card Heating Setpoint is equal to the highest of the three: Zone1 Heating Setpoint, Zone2 Heating Setpoint, Zone3 Heating
Setpoint and Hot water tank Primary Setpoint (TSP23).
If the circuit (Heating or Hot water tank) that ends the request has the highest Setpoint, the Zone card Heating Setpoint must be immediately decreased until it is
equal to the Setpoint of the circuit (Heating or Hot water tank) still in request status.
If the circuit (Heating or Hot water tank) that starts the request has a higher Setpoint than the circuit already in request status, the Zone card Heating Setpoint must
be immediately increased until it is equal to the higher Setpoint of the circuit (Heating or Hot water tank) in request status.
c. Each zone has its own adjustment parameters.
d. Post-circulation time
During DHW mode, if the pump of the zone is doing post-circulation, the latter must be stopped. At the end of DHW mode, post-circulation must not restart.
5.22.2 Remote Control
The algorithm of the Direct zones remains the same as the confi guration: 5.6 "THREE Direct Zones – No External Sensor".
The algorithm of the Hot water tank remains the same as the confi guration: 5.17 "ONE Hot water tank".
What changes is:
a. DHW has priority over Heating: the Hot water tank Priority parameter (TSP25) is equal to 0.
During DHW mode, the algorithm of the Hot water tank has the highest priority.
During DHW mode, the zone request (if occurring) must be stopped without doing post-circulation. At the end of DHW mode, the zone request (if occurring) must
restart with the normal algorithm.
b. DHW does not have priority over Heating: the Hot water tank Priority parameter (TSP25) is equal to 1.
In case of simultaneous request, the Zone card Heating Setpoint is equal to the highest of the three: Zone1 Heating Setpoint, Zone2 Heating Setpoint, Zone3 Heating
Setpoint and Hot water tank Primary Setpoint (TSP23).
If the circuit (Heating or Hot water tank) that ends the request has the highest Setpoint, the Zone card Heating Setpoint must be immediately decreased until it is
equal to the Setpoint of the circuit (Heating or Hot water tank) still in request status.
If the circuit (Heating or Hot water tank) that starts the request has a higher Setpoint than the circuit already in request status, the Zone card Heating Setpoint must
be immediately increased until it is equal to the higher Setpoint of the circuit (Heating or Hot water tank) in request status.
c. Each zone has its own adjustment parameters.
d. Post-circulation time
During DHW mode, if the pump of the zone is doing post-circulation, the latter must be stopped. At the end of DHW mode, post-circulation must not restart.
e. DHW setpoint
The range for management of ID56 of the Remote Controls (DHW temperature adjustment button) is between 10°C and 65°C: zone card fi xed ranges.
Modifi cation of the DHW Setpoint occurs in parallel: through the Hot water tank Setpoint parameter (TSP26) or through ID56 of the Remote Controls; the zone card
takes the last modifi ed value and must update the others.
f. DHW Eco/Comfort (1 Remote Control)
In Economy mode the DHW request generated by T2 is disabled.
In Comfort mode the DHW request generated by T2 is enabled.
g. DHW Eco/Comfort (plus 1 Remote Control)
The DHW request generated by T2 is enabled only if all the Remote Controls are in Comfort mode.
5.23 "THREE DIRECT ZONES AND ONE HOT WATER TANK – WITH EXTERNAL SENSOR"
Autoconfi guration:
Connection Description
Pump phase or Valve (RY1)
7
Pump neutral or Valve (RY1)
8
Pump neutral or Valve (RY2)
10
Direct zone 2
Direct zone 3
Direct zone 3
Hot water tank probe
Hot water tank probe
Direct zone 1
Direct zone 1
Direct zone 2
CONTROLLO ZONE FZ4B
95