CONTROLLO ZONE FZ4B
84
cod. FZ4B - 06/2011 (Rev. 00)
EN
5. “STAND ALONE 1” CONFIGURATIONS.
5.1 “ONE DIRECT ZONE – NO EXTERNAL SENSOR”
Autocon
fi
guration
Connection
Description
7
Pump phase or Valve (RY1)
Direct zone 1
8
Pump neutral or Valve (RY1)
Direct zone 1
19
On/Off Thermostat or Remote Control (RT1)
Direct zone 1
20
On/Off Thermostat or Remote Control (RT1)
Direct zone 1
X15
Card SK connected
5.1.1 On/Off Thermostat
Zone pump
System circulation (including boiler) is ensured by the zone circulating pump: therefore the boiler does not have to have the circulating pump.
Zone valve
System circulation (including boiler) is ensured by the boiler circulating pump: therefore the boiler must have the circulating pump.
Algorithm
a. Zone card Heating Setpoint = Zone1 Heating Setpoint
b. Zone1 Heating Setpoint = Zona1 Max.Temperature (TSP02) + Zona1 calculated setpoint Offset (TSP03).
c. If RT1 closes the contact, RY1 must be powered; and must remain powered while RT1 remains closed.
The Delay for Zone timer (TSP29) starts: during this time the relay of card SK must be unpowered.
d. At the end of the Delay for Zone timer (TSP29), the relay of card SK must be powered.
e. If RT1 opens the contact, the relay of card SK must be unpowered; whereas RY1 must remain powered for the entire duration of the Post-circulation Time timer
(TSP27); at the end of this timer, RY1 must be unpowered.
5.1.2 Remote Control
Zone pump
System circulation (including boiler) is ensured by the zone circulating pump: therefore the boiler does not have to have the circulating pump.
Zone valve
System circulation (including boiler) is ensured by the boiler circulating pump: therefore the boiler must have the circulating pump.
Algorithm
a. Zone card Heating Setpoint = Zone1 Heating Setpoint
b. Zone1 Heating Setpoint = Control Setpoint calculated from Remote C Zone1 Calculated setpoint Offset (TSP03).
The Control Setpoint calculated from Remote Control is limited by ID57 of the Remote Control itself (Heating temperature adjustment button).
The range for management of the Remote Control ID57 is de
fi
ned by the parameters: Zone1 Min. Temperature (TSP01) and Zone1 Max. Temperature (TSP02).
c. If RT1 activates the request, RY1 must be powered; and must remain powered while RT1 remains in request status.
The Delay for Zone timer (TSP29) starts: during this time the relay of card SK must be unpowered.
d. At the end of the Delay for Zone timer (TSP29), the relay of card SK must be powered.
e. If RT1 deactivates the request, the relay of card SK must be unpowered; whereas RY1 must remain powered for the entire duration of the Post-circulation Time timer
(TSP27); at the end of this timer, RY1 must be unpowered.
5.2 “ONE DIRECT ZONE – WITH EXTERNAL SENSOR”
Autocon
fi
guration:
Connection
Description
7
Pump phase or Valve (RY1)
Direct Zone 1
8
Pump neutral or Valve (RY1)
Direct zone 1
19
On/Off Thermostat or Remote Control (RT1)
Direct zone 1
20
On/Off Thermostat or Remote Control (RT1)
Direct zone 1
30
NTC sensor (T4)
External probe
31
NTC sensor (T4)
External probe
X15
Card SK connected
5.2.1 On/Off Thermostat
The algorithm remains the same as the con
fi
guration: 5.1 “ONE Direct Zone – No External Sensor”.
What changes is only the calculation of Zone1 Heating Setpoint if the sliding temperature was activated.
a. If Zone 1 External Probe Curve (TSP05) is equal to 0.
Zone1 Heating Setpoint = Zone1 Max. Temperature (TSP02) + Zone1 calculated setpoint Offset (TSP03).
b. If Zone 1 External Probe Curve (TSP05) is between 1 and 10.
Zone1 Heating Setpoint = Setpoint calculated from External Probe + Zone1 calculated setpoint Offset (TSP03).
However:
If Zone1 Max. Temperature (TSP02) < Setpoint calculated from External Probe then Setpoint calculated from External Probe = Zone1 Max. Temperature (TSP02).
Summary of Contents for FZ4B
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