Gruppo Ferroli FZ4B, Use And Installation Instructions

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CONTROLLO ZONE FZ4B
75
cod. FZ4B - 06/2011 (Rev. 00)
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.
CALDAIA
M
318a
317a
319a
315a
a
318c
c
M
318b
317b
319b
315b
b
72a/139a 72b/139b 72c/139c
fi g. 20
Electrical connections
After installation, carry out the necessary electrical connections as shown in the wiring diagram.
Then con
fi gure the controller as described in the speci fi c section.
RY1 RY2 RY3 RY4 RY5 RY6 RY7 RT1 RT2 RT3 T1 T2 T3 T4
7 (L) 8 (N) 9 (L) 10 (N) 11 (L) 12 (L) 13 (L) 14 (N) 15 (L) 16 (L) 19 - 20 21 - 22 23 - 24 25 - 26 27 - 28 29 - 30 30 - 31
318a 318a/318b 315a - A 315a - B 315a - C 318b 315b - A 315b - B/318c 315b - C 318c 72a/139a 72b/139b 72c/139c 319a 319b
318a 318a/318b 315a - A 315a - B 315a - C 318b 315b - A 315b - B/318c 315b - C 318c 72a/139a 72b/139b 72c/139c 319a 319b 138
318a
317a
318b
315a
139a
72a
139b
72b
319a 138
230Vac
50Hz
L
N
319b
317b
315b
318c
139c
72c
A B C
IMPIANTO
A B C
FZ4B
X15
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 2526 27 28 29 3031 32 33
L_N L_N L_N L L_N L L L
X01 X02 X03 X09 X10 X11 X12 X13 X14
BUSRT1 RT2 RT3 T1 T2 T3T4 BLR
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
fi g. 21
In case of Stand Alone 2 con fi 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