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FORCE W
156
EN
cod. 3541Q760 - Rev. 00 - 01/2019
Two mixed heating circuits, one direct heating circuit and one DHW circuit with circulating pump
- Schematic diagram
The
zone control card FZ4B
can manage different types of systems. An example is given.
Use diverter valves with 3 wires: 230V OPENING PHASE - 230V CLOSING PHASE - NEUTRAL
with switching times (from all closed to all open) of not more than 180 seconds.
fig. 48
- Electrical connections
After installation, carry out the necessary electrical connections as shown in the wiring diagram.
Then configure the controller as described in the specific section.
fig. 49
130
d
155
300
a
b
c
317a
72/139a
FZ4B
319a
318a
315a
317b
319b
318b
318c
72/139b
72/139c
315b
I*
M
R
M
M
138
318a
317a
318b
315a
139a
72a
139b
72b
319a
138
319b
317b
315b
318c
139c
72c
AB
C
A
B
C
AL
TA
TENSIONE
BASSA
TENSIONE
N
FUSIBILE Esterno
L
FZ4B
X15
123456
7
8
9
10
11
121
31
41
51
6
171
81
92
02
12
22
32
42
52
62
72
82
93
03
13
23
3
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
FUSE 3.15A
L
N
1
2
3
4
5
6
7
8
9
10
11
121
3
141
5
161
7
18
N
L
155
130
LN
300
L_
NL
_ NL
_ NL
L_
N
LL
L
X01
X02
X03
X09
X10
X1
1
X12
X13
X14
BUS
R
T1
R
T2
R
T3
T1
T2
T3
T4
BLR