One Mixed Zone - No External Sensor - Gruppo Ferroli FZ4B Instrucciones De Uso E Instalación

CONTROLLO ZONE FZ4B
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 (T3)
29
NTC sensor (T3)
30
NTC sensor (T4)
30
NTC sensor (T4)
31
Card SK connected
X15
The algorithm remains the same as the confi guration: 6.5 "THREE Direct Zones – No External Sensor".
What changes is only the calculation of Zone1 Heating Setpoint, Zone2 Heating Setpoint and Zone3 Heating Setpoint if the sliding temperature was activated in one or
more zones.
6.7 "ONE MIXED ZONE – NO EXTERNAL SENSOR"
Autoconfi guration:
Connection Description
Pump phase (RY1)
7
Pump neutral (RY1)
8
Mixing Valve Opening phase (RY2)
9
Mixing Valve neutral (RY2)
10
Mixing Valve Closing phase (RY3)
11
On/Off Thermostat or Remote Control (RT1)
19
On/Off Thermostat or Remote Control (RT1)
20
NTC sensor (T1)
25
NTC sensor (T1)
26
NTC sensor (T3)
29
NTC sensor (T3)
30
Card SK connected
X15
6.7.1 On/Off Thermostat
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.
The Mixing Valve Boost timer (TSP20) starts: during this time RY2 must be powered and RY3 must be unpowered.
d. If the Delay for Zone timer (TSP29) is less than the Mixing Valve Boost timer (TSP20), the Delay for Zone timer (TSP29) must be equal to the Mixing Valve Boost
timer (TSP20).
e. At the end of Mixing Valve Boost timer (TSP20), the Zone1 mixing valve adjustment algorithm must start; and this while RT1 remains closed. The aim of the micro-
processor is to adjust the valve so that the temperature detected by sensor T1 is equal to the Zone1 Max. Temperature value (TSP02). Therefore:
- If the temperature detected by sensor T1 is equal to the Zone1 Max. Temperature value (TSP02), RY2 must be unpowered and RY3 must be unpowered.
- If the temperature detected by sensor T1 is higher than the Zone1 Max. Temperature value (TSP02), RY2 must be unpowered whereas RY3 must be powered
according to the following rule: (temperature detected by sensor T1 - Zone1 Max. Temperature value (TSP02)) * Mixing valve On Time timer value for °C (TSP21)
each time the Mixing valve On+Off Time timer (TSP19) has expired.
- If the temperature detected by sensor T1 is lower than the Zone1 Max. Temperature value (TSP02), RY3 must be unpowered whereas RY2 must be powered
according to the following rule: (Zone1 Max. Temperature value (TSP02) - temperature detected by sensor T1) * Mixing valve On Time timer value for °C (TSP21)
each time the Mixing valve On+Off Time timer (TSP19) has expired.
f. At the end of the Delay for Zone timer (TSP29), the Heating standby Time timer (TSP33) must be reset.
If T3 is lower than the Zone card Heating Setpoint value, the relay of card SK must be powered.
If T3 becomes higher than the Zone card Heating Setpoint value plus the Heating Hysteresis value (TSP32), the relay of card SK must be unpowered and, at the
same time, the Heating standby Time timer (TSP33) must start.
At the end of the Heating standby Time timer (TSP33), if T3 is lower than the Zone card Heating Setpoint value, the relay of card SK must be powered, otherwise
the latter will be powered as soon as T3 is lower than the Zone card Heating Setpoint value.
g. If RT1 opens the contact, the relay of card SK must be unpowered; RY2 must be unpowered, RY3 must remain powered for the entire duration of the Mixing valve
closing Time timer (TSP31); 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.
6.7.2 Remote Control
Algorithm
a. Zone card Heating Setpoint = Zone1 Heating Setpoint
b. Zone1 Heating Setpoint = Control Setpoint calculated from Remote Control + 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 defi 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.
102
Direct zone 2
Direct zone 3
Direct zone 3
Heating delivery
Heating delivery
External probe
External probe
Mixed zone 1
Mixed zone 1
Mixed zone 1
Mixed zone 1
Mixed zone 1
Mixed zone 1
Mixed zone 1
Mixed zone 1 delivery
Mixed zone 1 delivery
Heating delivery
Heating delivery
EN