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QUADRIFOGLIO B
A direct heating circuit and a DHW circuit with diverter valve (3-wire)
- Schematic diagram
Use diverter valves with 3 wires:
- OPENING PHASE 230V
- CLOSING PHASE 230V
- NEUTRAL
with switching times (from all closed to all open) of not more than 90 seconds.
- 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.
1
2
3
4
5
6
7
L
N
32
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
72
138
37 38 39 40 41 42 43 44
Legend
32 Heating circulating pump
72 1st zone (direct) room thermostat
138 External probe
155 Hot water tank probe
348 3-way valve (3-wire)
A = OPENING PHASE
B = NEUTRAL
C = CLOSING PHASE
I* ISPESL safety devices (when required - not supplied)
To manage the sliding temperature it is necessary to purchase the external probe accessory code 013018X0
If a hot water tank probe (not supplied) is used, it is necessary to purchase the NTC probe accessory code
1KWMA11W (2 mt.) or code 043005X0 (5 mt.)
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)
fig. 42
8
9 10 11 12 13 14 15 16 17 18
A
C
B
348
155
N
fig. 43
a 1st zone (direct)
b Hot water tank circuit
M Delivery
RA High Temperature Return
RB Low Temperature Return
cod. 3541F574 - Rev. 00 - 09/2017
- Parameters
Each system requires a different parameterisation. Follow the access procedure given
below.
"Service Menu"
Check/change parameter b02 of the "Transparent Parameters Menu" to 9 (for models B
70, B 125 and B 320) and to 6 (for model B 220).
- Optional functions
As well as the electrical connections of the previous figure (required for this system con-
figuration) there are options that do not require settings.
1
2
3
4
L
N
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
139
37 38 39 40 41 42 43 44
Legend
139 Remote Control: it can be installed in place of 72 to manage the request of the 1st zone (direct)
300 Burner On indication (voltage-free output): the example shows the connection of an hour counter at 230Vac
301 Fault indication (voltage-free contact output): the example shows the connection of a lamp at 230Vac
302 Remote reset input (230Vac): the example shows the connection of a double-pole switch at 230Vac, allowing
the resetting of a block type fault
357 Fault indication (230Vac): the example shows the connection of a lamp at 230Vac
L
5
6
7
8
9 10 11 12 13 14 15 16 17 18
302
301
300
fig. 44
357
L
N
73
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