Mod. 303 - 230 V
L1 N PE
Pump
Switch off from
the main current
before opening.
A separate residual current device 230 V - 0,03 A
Mod. 300 - 400 V
Switch
ON / OFF
L
N
PE
Pump
Switch off from
the main current
before opening.
A separate residual current device 400 V - 0,03 A
18
Electric Connection
L1 N
PE
must be installed for the heating unit.
L1 L2 L3
N PE
must be installed for the heating unit.
Switch ON / OFF
Heating Circulation System with thermostat
PE
N
L1
12k
Regulation
of temperature
Heating Circulation System with thermostat
PE
N
L3
L2
L1
Regulation
of temperature
32
31
22
21
12
11
°C
°C
Delimiter
of temperature
32
31
22
21
12
11
62k
°C
°C
Delimiter
of temperature