CONTROLLO ZONE FZ4B
74
cod. FZ4B - 06/2011 (Rev. 00)
EN
One mixed zone and two direct 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
318c
c
318b
b
72a/139a 72b/139b 72c/139c
fi
g. 18
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 315a - A 315a - B 315a - C
318b
318c
318b/318c
72a/139a 72b/139b 72c/139c
319a
318a
318a 315a - A 315a - B 315a - C
318b
318c
318b/318c
72a/139a 72b/139b 72c/139c
319a
138
318a
317a
318b
315a
139a
72a
139b
72b
319a
138
230Vac
50Hz
L
N
318c
139c
72c
IMPIANTO
A B C
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 (direct) room thermostat
72c
3rd zone (direct) room thermostat
138
External probe
139a
1st zone (mixed) Remote Timer Control
139b
2nd zone (direct) Remote Timer Control
139c
3rd zone (direct) Remote Timer Control
315a
1st zone (mixed) mixing valve
A
= OPENING PHASE
B
= NEUTRAL
C
= CLOSING PHASE
317a
1st zone (mixed) safety thermostat
318a
1st zone (mixed) circulating pump
318b
2nd zone (direct) circulating pump
318c
3rd zone (direct) circulating pump
319a
1st zone (mixed) delivery sensor
a
1st zone (mixed)
b
2nd zone (direct)
c
3rd zone (direct)
____ Necessary wiring
- - - - Optional wiring
fi
g. 19
To manage the sliding temperature it is necessary to purchase the external probe accessory code 013018X0
Содержание FZ4B
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