Gruppo Ferroli FZ4B Instructions D'utilisation page 78

CONTROLLO ZONE FZ4B
Two direct zones and one hot water tank circuit
Schematic diagram
CALDAIA
318c
318a 318b
a b
72a/139a 72b/139b
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
155 Hot water tank probe
To manage the sliding temperature it is necessary to purchase the external probe accessory code 013018X0
If a hot water tank thermostat (not supplied) is used, it is necessary to purchase the accessory kit code 013017X0 (to be connected in place of the Hot water tank Probe)
78
155
RY3 RY4 RY5
11 (L) 12 (L) 13 (L) 14 (N)
318b 318c
318b 318c
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
318c Hot water tank circulating pump
• Management of priority/contemporaneity with parameter FZ4B P25
• Management of Economy/Comfort only with Remote Timer Control
c
fi g. 26
RY6 RY7 RT1
15 (L) 16 (L) 19 - 20
318c 72a/139a 72b/139b
318c 72a/139a 72b/139b
FZ4B
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
72a
139a
318c
fi g. 27
RT2 RT3 T1 T2
21 - 22 23 - 24 25 - 26 27 - 28
155
155
72b
155 138
139b
IMPIANTO
a 1st zone (direct)
b 2nd zone (direct)
c Hot water tank circuit
____ Necessary wiring
- - - - Optional wiring
EN
T3 T4
29 - 30 30 - 31
138