One Mixed Zone - With External Sensor - Gruppo Ferroli FZ4B Instructions D'utilisation

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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 relay of card SK must be powered.

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.

5.7.2 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.

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 in request status. The aim of the

microprocessor is to adjust the valve so that the temperature detected by sensor T1 is equal to the Control Setpoint value calculated from Remote Control. Therefore:

If the temperature detected by sensor T1 is equal to the Control Setpoint value calculated from Remote Control, RY2 must be unpowered and RY3 must be

unpowered.

If the temperature detected by sensor T1 is higher than the Control Setpoint value calculated from Remote Control, RY2 must be unpowered whereas RY3 must

be powered according to the following rule: (temperature detected by sensor T1 - Control Setpoint value calculated from Remote Control) * 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 Control Setpoint value calculated from Remote Control, RY3 must be unpowered whereas RY2 must

be powered according to the following rule: (Control Setpoint value calculated from Remote Control - 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 relay of card SK must be powered.

g. If RT1 deactivates the request, the relay of card SK must be unpowered; RY2 must be unpowered, RY3 must be 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.

5.8 "ONE MIXED ZONE – WITH EXTERNAL SENSOR".

Autoconﬁ guration:

Connection

Description

Pump phase (RY1)

Pump neutral (RY1)

Mixing Valve Opening phase (RY2)

Mixing Valve neutral (RY2)

Mixing Valve Closing phase (RY3)

On/Off Thermostat or Remote Control (RT1)

NTC sensor (T1)

NTC sensor (T4)

Card SK connected

X15

5.8.1 On/Off Thermostat

The algorithm remains the same as the conﬁ guration: 5.7 "ONE Mixed 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).

Mixed zone 1

Mixed zone 1 delivery

External probe

CONTROLLO ZONE FZ4B

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