Gruppo Ferroli FZ4B Instrucciones De Uso E Instalación página 69

EN
Two direct zones
Schematic diagram
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
318a 318a 318b
Key
72a 1st zone (direct) room thermostat
72b 2nd zone (direct) room thermostat
138 External probe
139a 1st zone (direct) Remote Timer Control
139b 2nd zone (direct) Remote Timer Control
To manage the sliding temperature it is necessary to purchase the external probe accessory code 013018X0
318a
72a/139a
RY3 RY4 RY5
11 (L) 12 (L) 13 (L) 14 (N)
318b
318b
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
318b
318a
318a 1st zone (direct) circulating pump
318b 2nd zone (direct) circulating pump
CALDAIA
318b
a b
72b/139b
fi g. 8
RY6 RY7 RT1
15 (L) 16 (L) 19 - 20
72a/139a 72b/139b
72a/139a 72b/139b
FZ4B
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
72a
139a
fi g. 9
CONTROLLO ZONE FZ4B
RT2 RT3 T1 T2
21 - 22 23 - 24 25 - 26 27 - 28
72b
138
139b
IMPIANTO
a 1st zone (direct)
b 2nd zone (direct)
____ Necessary wiring
- - - - Optional wiring
T3 T4
29 - 30 30 - 31
138
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