64
Electrical connections
7.8 Dip-switch setting
The dip-switches are located on the main control board of the hydraulic module.
Switch
S1
1.2
1
ON
2 3 4
Unit with built-in heater (factory setting):
3kW IBH = 1 O, 2 O
6kW IBH = 1 O, 2 On
9kW IBH = 1 On, 2 On
3.4
1
ON
2 3 4
IBH and AHS absent = 3 O, 4 O
IBH present = 3 On, 4 O (if with built-in heater: factory setting; if
with external heater: setting on site)
AHS only Heating = 3 O, 4 On
AHS Heating and DHW = 3 On, 4 On
S2
1
1
ON
2 3 4
Recirculation every 24H on secondary circuit disabled = 1 On
Recirculation every 24H on secondary circuit enabled = 1 O
2
1
ON
2 3 4
TBH absent = On TBH present = O
3.4
1
ON
2 3 4
Reserved
S4
1
1
ON
2 3 4
If the units are in cascade, they are auto-addressing. If auto-
addressing fails:
• switch o power supply
• set 1 = ON and switch on power supply
• if the unit is configured as the Master: it deletes the addresses
present in all Slave units
• if the unit is configured as a Slave: it deletes its own address
• switch o power supply and set 1 = OFF
• switch on power supply: the auto-addressing procedure of the
Slave units is restarted
2
1
ON
2 3 4
IBH enabled for DHW production = On
IBH disabled for DHW production = O
3.4
1
ON
2 3 4
3: ON: the unit is a back-up Master, OFF: the unit is not a back-up
Master
4: Reserved
S9 1.2
1
ON
2
Configuration of units in cascade
Slave = 1 O, 2 O
Master = 1 On, 2 On
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