Gruppo Ferroli FZ4B Instructions D'utilisation page 80

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CONTROLLO ZONE FZ4B
One mixed zone and one hot water tank circuit
Schematic diagram
Use 3-wire mixing valves:
- OPENING PHASE 230V
- CLOSING PHASE 230V
- NEUTRAL.
with switching times (from all closed to all open) of not more
than 180 seconds.
• Management of priority/contemporaneity with parameter FZ4B P25
• Management of Economy/Comfort only with Remote Timer Control
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
315a - A 315a - B 315a - C
318a
318a
315a - A 315a - B 315a - C
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
317a
Key
72a 1st zone (mixed) room thermostat
138 External probe
139a 1st zone (mixed) Remote Timer Control
315a 1st zone (mixed) mixing valve
A = OPENING PHASE
B = NEUTRAL
C = CLOSING PHASE
In case of Stand Alone 2 confi guration it is necessary to purchase the NTC probe accessory code 1KWMA11W (2 mt.) or code 043005X0 (5 mt.)
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)
80
RY3
RY4
RY5
11 (L)
12 (L)
13 (L)
FZ4B
C
B
A
318a
315a
318b
155 Hot water tank probe
317a 1st zone (mixed) safety thermostat
318a 1st zone (mixed) circulating pump
318b Hot water tank circulating pump
319a 1st zone (mixed) delivery sensor
CALDAIA
315a
318b
M
317a
319a
318a
a
72a/139a
fi g. 30
RY6
RY7
RT1
14 (N)
15 (L)
16 (L)
19 - 20
318b
318b
72a/139a
318b
318b
72a/139a
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
72a
319a
139a
fi g. 31
155
b
RT2
RT3
T1
21 - 22
23 - 24
25 - 26
27 - 28
319a
319a
155
138
IMPIANTO
a 1st zone (mixed)
b Hot water tank circuit
____ Necessary wiring
- - - - Optional wiring
EN
T2
T3
T4
29 - 30
30 - 31
155
155
138

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