Gruppo Ferroli FZ4B, Use And Installation Instructions

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CONTROLLO ZONE FZ4B
77
cod. FZ4B - 06/2011 (Rev. 00)
EN
One direct zone and one hot water tank circuit
Schematic diagram
CALDAIA
318a
a
318b
155
b
72a/139a
• Management of priority/contemporaneity with parameter FZ4B P25
• Management of Economy/Comfort only with Remote Timer Control
fi g. 24
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 72a/139a 155
318a 318a 318b 318b 72a/139a 155 138
318b 318a
139a
72a
138
230Vac
50Hz
L
N
IMPIANTO
155
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. 25
Key
72a 1st zone (direct) room thermostat a 1st zone (direct)
138 External probe b Hot water tank circuit
139a 1st zone (direct) Remote Timer Control
____ Necessary wiring
318a 1st zone (direct) circulating pump - - - - Optional wiring
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)