ELECTRICAL CONNECTIONS
The circulators, burner and any room thermostat should be connected following the indications in the attached
wiring diagrams. We advise you to place a bipolar switch with contacts having at least a 3 mm aperture
between the supply mains and the appliance, equipped with max. 5 A fuses. Connect the boiler to a 230 V -
50 Hz phase/neutral supply mains.
We recommend you connect the appliance to a good earth connection.
Lamborghini declines any responsibility for damage to persons or property occurring because the appliance
has not been connected to a good earth connection.
VIT CI
Mains power 230 Vac
L
N
IG
3 x 1
Power lead
Exit 230 Vac
IG
Magneto-thermal switch for electrical panel power supply sectioning (by the installer)
Boiler sensor
SC
TA
Room thermostat
FL
Hot water micro flow switch
6.3 A delayed-action fuse
F1
B1
Burner control relay (single-stage)
B2
Diverting valve control relay
Heating pump control relay
B3
PI
Heating circuit circulator
VD
Diverting valve for "micro-storage" water circuit (=OFF) and heating system (=ON)
Safety water thermostat 100
TS
M2
Lumberg connector for boiler sensor and micro flow switch connection
M3
Removable terminal block for electrical panel power supply
Stelvio connector for system pump connection
M5
M6
Terminal for earth connection
M7
Removable terminal block for room thermostat
SBR Wieland thorn 7 poles for burner
3 x 0,75
21
12
M
TS
11
VD
M3
N
Not Used
L
N
L
fig. 6 a
C (-6°C)
O
3 x 0,75
PI
N
L N L N
5
4
3 2 1
1 2 3 4
M5
M5
1
CN1
M6
B2
B1
M2
B3
1
1
2
3
TA
M7
2
F1
1
J1
SC
FL
Burner lead
4 x 1
Potentiometers and LED board
1
POWER SWITCH
0-WINTER SUMMER
D0000171
DL1
LOCK-OUT
21
SBR
HEATING
POTENTIOMETER
REG
PR
J1
DL2
DL3
ON
FAULT