Gruppo Ferroli FZ4B Instrucciones De Uso E Instalación página 77

EN
One direct zone and one hot water tank circuit
Schematic diagram
CALDAIA
318a 318b
a
72a/139a
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
318a 318a
Key
72a 1st zone (direct) room thermostat
138 External probe
139a 1st zone (direct) Remote Timer Control
318a 1st zone (direct) circulating pump
318b Hot water tank circulating pump
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)
155
b
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
318a
a 1st zone (direct)
b Hot water tank circuit
____ Necessary wiring
- - - - Optional wiring
• Management of priority/contemporaneity with parameter FZ4B P25
• Management of Economy/Comfort only with Remote Timer Control
fi g. 24
RY6 RY7 RT1
15 (L) 16 (L) 19 - 20
318b 72a/139a
318b 72a/139a
FZ4B
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
72a
318b
fi g. 25
CONTROLLO ZONE FZ4B
RT2 RT3 T1 T2
21 - 22 23 - 24 25 - 26 27 - 28
155
155
139a
155 138
IMPIANTO
T3 T4
29 - 30 30 - 31
138
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