FORCE W
154
EN
cod. 3541Q760 - Rev. 00 - 01/2019
A direct heating circuit and a DHW circuit with diverter valve (3-wire)
- Schematic diagram
Use diverter valves with 3 wires: 230V OPENING PHAS - 230V CLOSING PHASE - NEUTRAL
with switching times (from all closed to all open) of not more than 90 seconds.
fig. 45
- 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. 46
Legend
32
Heating circulating pump
a
1st zone (direct)
72
1st zone (direct) room thermostat
b
Hot water tank circuit
138
External probe
M
Delivery
155
Hot water tank probe
R
Return
348
3-way valve (3-wire)
A =
OPENING PHASE
B =
NEUTRAL
C =
CLOSING PHASE
I*
ISPESL safety devices (when required - not supplied)
155
348
32
M
I*
b
a
72
M
R
138
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
155
L
N
32
L
N
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18
348
C B
A
72
138
