Gruppo Ferroli FZ4B, Use And Installation Instructions

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CONTROLLO ZONE FZ4B
70
cod. FZ4B - 06/2011 (Rev. 00)
EN
Three direct zones
Schematic diagram
CALDAIA
318a
a
318b
b
318c
c
72a/139a 72b/139b 72c/139c
fi g. 10
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 318b 318c 318c 72a/139a 72b/139b 72c/139c
318a 318a 318b 318b 318c 318c 72a/139a 72b/139b 72c/139c 138
318a
139a
72a
138
230Vac
50Hz
L
N
IMPIANTO
318b
139b
72b
139c
72c
318c
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
fi g. 11
Key
72a 1st zone (direct) room thermostat 318a 1st zone (direct) circulating pump a 1st zone (direct)
72b 2nd zone (direct) room thermostat 318b 2nd zone (direct) circulating pump b 2nd zone (direct)
72c 3rd zone (direct) room thermostat 318c 3rd zone (direct) circulating pump c 3rd zone (direct)
138 External probe
____ Necessary wiring
139a 1st zone (direct) Remote Timer Control - - - - Optional wiring
139b 2nd zone (direct) Remote Timer Control
139c 3rd zone (direct) Remote Timer Control
To manage the sliding temperature it is necessary to purchase the external probe accessory code 013018X0