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3.5.5 Electrical diagram
For increased safety, ask a qualifi ed technician to perform a
thorough check of the electrical system.
Peripheral unit
FLOOR
TA2
SE
CN14
CN3
CN25
CN8
Bk= Nero - Black
Rd = Rosso - Red
Gr = Verde - Green
Bl = Blu - Blue
Br = Marrone - Brown
Wh = Bianco - White
Gry = Grigio - Grey
C.H. Return
temp. probe
C.H. Flow
temp. probe
Overheat main
exchanger
D.H.W. flow switch
Switch ON/OFF
N
L
SOL TA1
1
N
L
FLAME
N
L
N
L
FLAME
LV connection
Bl
Bl
Rd
Rd
Wh
Wh
Gry
Bk
Bk
Bl
Br
The manufacturer is not responsible for any damage
caused by the lack of a suitable earthing system or by the
malfunctioning of the electricity mains supply.
1
1
Underfloor heating
thermostat
HV connection
Gry
1
1
CN14
CN3
CN25
CN8
3. installation
Peripheral unit connection
Outdoor
Room Thermostat 1
sensor
FLOOR
SE
SOL TA1
TA2
Detection electrode
Modulating Fan
Bk
Rd
Bk
Wh
Bl
Ignitor
Bk
Bk
Br
Bl
Br
Bl
Bk
Bk
Bk
4
1
Circulation Pump
1
Gas valve
Diverter valve
Fig. 3.32
27
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