CONTROLLO ZONE FZ4B
72
cod. FZ4B - 06/2011 (Rev. 00)
EN
Two mixed zones
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.
CALDAIA
M
318a
317a
319a
315a
a
M
318b
317b
319b
315b
b
72a/139a 72b/139b
fi
g. 14
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 315a - A 315a - B 315a - C
318b
315b - A 315b - B 315b - C
72a/139a 72b/139b
319a
319b
318a 318a/318b 315a - A 315a - B 315a - C
318b
315b - A 315b - B 315b - C
72a/139a 72b/139b
319a
319b
138
318a
317a
315a
A
B C
319a
138
230Vac
50Hz
L
N
IMPIANTO
315b
A
B C
317b
318b
319b
139a
72a
139b
72b
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
72a
1st zone (mixed) room thermostat
72b
2nd zone (mixed) room thermostat
138
External probe
139a
1st zone (mixed) Remote Timer Control
139b
2nd zone (mixed) Remote Timer Control
315a
1st zone (mixed) mixing valve
A
= OPENING PHASE
B
= NEUTRAL
C
= CLOSING PHASE
315b
2nd zone (mixed) mixing valve
A
= OPENING PHASE
B
= NEUTRAL
C
= CLOSING PHASE
317a
1st zone (mixed) safety thermostat
317b
2nd zone (mixed) safety thermostat
318a
1st zone (mixed) circulating pump
318b
2nd zone (mixed) circulating pump
319a
1st zone (mixed) delivery sensor
319b
2nd zone (mixed) delivery sensor
a
1st zone (mixed)
b
2nd zone (mixed)
____ Necessary wiring
- - - - Optional wiring
fi
g. 15
In case of Stand Alone 2 con
fi
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
Содержание FZ4B
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