Gruppo Ferroli FZ4B Instrucciones De Uso E Instalación página 79

EN
Three direct zones and one hot water tank circuit
Schematic diagram
CALDAIA
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/318d 318b
318a 318a/318d 318b
Key
72a 1st zone (direct) room thermostat
72b 2nd zone (direct) room thermostat
72c 3rd zone (direct) room thermostat
138 External probe
139a 1st zone (direct) Remote Timer Control
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
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)
155
318c 318d
c
72c/139c
RY3 RY4 RY5
11 (L) 12 (L) 13 (L)
318b 318c
318b 318c
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
318a
318b
155 Hot water tank probe
318a 1st zone (direct) circulating pump
318b 2nd zone (direct) circulating pump
318c 3rd zone (direct) circulating pump
318d Hot water tank circulating pump
• Management of priority/contemporaneity with parameter FZ4B P25
• Management of Economy/Comfort only with Remote Timer Control
d
fi g. 28
RY6 RY7 RT1
14 (N) 15 (L) 16 (L) 19 - 20
318c 318d 72a/139a 72b/139b 72c/139c
318c 318d 72a/139a 72b/139b 72c/139c
FZ4B
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
72a
318c
318d
139a
fi g. 29
CONTROLLO ZONE FZ4B
RT2 RT3 T1 T2
21 - 22 23 - 24 25 - 26 27 - 28
155
155
155
72b 72c
138
IMPIANTO
139b 139c
a 1st zone (direct)
b 2nd zone (direct)
c 3rd zone (direct)
d Hot water tank circuit
____ Necessary wiring
- - - - Optional wiring
T3 T4
29 - 30 30 - 31
138
79