Ferroli QUADRIFOGLIO B Instrucciones De Uso, Instalación Y Mantenimiento página 74

Two mixed heating circuits, one direct heating circuit and one DHW circuit with
circulating pump
- Schematic diagram
The zone control card FZ4B can manage different types of systems. An example is giv-
en.
Use diverter valves with 3 wires:
- OPENING PHASE 230V
- CLOSING PHASE 230V
- NEUTRAL
with switching times (from all closed to all open) of not more than 180 seconds.
- Electrical connections
After installation, carry out the necessary electrical connections as shown on the wiring
diagram.
Then configure the controller as described in the specific section.
1 2 3 4 5 6
L N
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
37 38 39 40 41 42 43 44
L _ N L _ N L _ N L _ N
L L
X01 X02 X03
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
A B
C
317b
317a
318a
315a
318b
74
EN
fig. 45
7 8 9 10 11 12 13 14 15 16 17 18
L N
300
130
155
N
L L BUS RT1 RT2 RT3 T1 T2
X09 X10 X11 X12
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
A B C
72b
72c
72a
319a
315b
139a 139b 139c
318c
ALTA TENSIONE BASSA TENSIONE
fig. 46
cod. 3541F574 - Rev. 00 - 09/2017
Legend
72a Room thermostat 1st zone (mixed)
72b Room thermostat 2nd zone (mixed)
72c Room thermostat 3rd zone (direct)
130 Hot water tank circulating pump
138 External probe
139a Remote Timer Control 1st zone (mixed)
139b Remote Timer Control 2nd zone (mixed)
139c Remote Timer Control 3rd zone (direct)
155 Hot water tank probe
300 Legionella protection circulating pump
315a Mixing valve 1st zone (mixed)
A = OPENING PHASE
B = NEUTRAL
C = CLOSING PHASE
315b Mixing valve 2nd zone (mixed)
A = OPENING PHASE
B = NEUTRAL
C = CLOSING PHASE
I* ISPESL safety devices (When required - not supplied)
To manage sliding temperature it is necessary to purchase the external probe accessory code 013018X0
If a hot water tank probe (not supplied) is used, it is necessary to purchase the NTC probe accessory code
1KWMA11W (2 mt.) or code 043005X0 (5 mt.)
If a hot water tank thermostat (not supplied) is used, it is necessary to purchase the kit accessory code
013017X0 (to be connected in place of the Hot Water Tank Probe)
- Parameters
Each system requires a different parameterisation. Follow the access procedure given
below.
"Service Menu"
Check/change parameter b02 of the "Transparent Parameters Menu" to 8 (for models B
70, B 125 and B 320) and to 5 (for model B 220).
Check/change parameter b08 of the "Transparent Parameters Menu" to 1.
"System Type Menu"
Change parameter P.09 of the "System Type Menu" to 1.
- Parameters FZ4B
See relevant manual in Kit.
- Optional functions
As well as the electrical connections of the previous figure (required for this system con-
figuration) there are options that do not require settings.
1 2 3
L N
L
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
X15
T3 T4 BLR
37 38 39 40 41 42 43 44
X13 X14
319b 138 301 Fault indication (voltage-free contact output): the example shows the connection of a lamp at 230Vac
302 Remote reset input (230Vac): the example shows the connection of a double-pole switch at 230Vac, allowing
the resetting of a block type fault
357 Fault indication (230Vac): the example shows the connection of a lamp at 230Vac
QUADRIFOGLIO B
317a Safety thermostat 1st zone (mixed)
317b Safety thermostat 2nd zone (mixed)
318a 1st zone (mixed) circulating pump
318b 2nd zone (mixed) circulating pump
318c 3rd zone (direct) circulating pump
319a Delivery sensor 1st zone (mixed)
319b Delivery sensor 2nd zone (mixed)
M Delivery
RA High Temperature Return
RB Low Temperature Return
a 1st zone (mixed)
b 2nd zone (mixed)
c 3rd zone (direct)
d Hot water tank circuit
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
302
fig. 47
301
357
L
N