Gruppo Ferroli FZ4B Instrucciones De Uso E Instalación página 75

EN
Two mixed zones and tone direct zone
Schematic diagram
Use 3-wire mixing valves:
- 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 in the wiring diagram.
Then confi gure the controller as described in the specifi c section.
RY1 RY2
7 (L) 8 (N) 9 (L) 10 (N)
318a 318a/318b 315a - A 315a - B 315a - C 318b
318a 318a/318b 315a - A 315a - B 315a - C 318b
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
A B
317a
318a
In case of Stand Alone 2 confi guration it is necessary to purchase the NTC probe accessory code 1KWMA11W (2 mt.) or code 043005X0 (5 mt.)
To manage the sliding temperature it is necessary to purchase the external probe accessory code 013018X0
RY3 RY4 RY5
11 (L) 12 (L) 13 (L)
315b - A 315b - B/318c 315b - C
315b - A 315b - B/318c 315b - C
FZ4B
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
C
A B C
317b
315a
315b
139a
318b
318c
315a 315b
M
317a
319a
318a
a
72a/139a 72b/139b 72c/139c
fi g. 20
RY6 RY7 RT1
14 (N) 15 (L) 16 (L) 19 - 20
318c 72a/139a 72b/139b 72c/139c
318c 72a/139a 72b/139b 72c/139c
72b
72c
72a
319a 319b 138
139b 139c
IMPIANTO
fi g. 21
CONTROLLO ZONE FZ4B
CALDAIA
318c
M
317b
319b
318b
c
b
RT2 RT3 T1
21 - 22 23 - 24 25 - 26
319a
319a
72a 1st zone (mixed) room thermostat
72b 2nd zone (mixed) room thermostat
72c 3rd zone (direct) room thermostat
138 External probe
139a 1st zone (mixed) Remote Timer Control
139b 2nd zone (mixed) Remote Timer Control
139c 3rd zone (direct) Remote Timer Control
315a 1st zone (mixed) mixing valve
A = OPENING PHASE
B = NEUTRAL
C = CLOSING PHASE
315b 2nd zone (mixed) mixing valve
A = OPENING PHASE
B = NEUTRAL
C = CLOSING PHASE
317a 1st zone (mixed) safety thermostat
317b 2nd zone (mixed) safety thermostat
318a 1st zone (mixed) circulating pump
318b 2nd zone (mixed) circulating pump
318c 3rd zone (direct) circulating pump
319a 1st zone (mixed) delivery sensor
319b 2nd zone (mixed) delivery sensor
a 1st zone (mixed)
b 2nd zone (mixed)
c 3rd zone (direct)
____ Necessary wiring
- - - - Optional wiring
T2 T3 T4
27 - 28 29 - 30 30 - 31
319b
319b 138
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