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EN
5.11
Wiring diagram
BLACK
PI
BLACK
BROWN
L
N
BLEU
CN11
EAR
Line
L
N
Neutral
Fuse (3.15AT - 250V)
F
Ignition transformer
TRA
System pump
PI
Smoke thermostat
TF
EAR
Ignition / Detection electrode
Gas solenoid valve
EV
Domestic hot water sensor
SS
To connect the "Air Thermostat" or, alternatively the "Remote Control", remove the bridge
between terminals 5-6.
m
CAUTION
Users must:
– Use an omnipolar cut-off switch, disconnect switch
in compliance with EN Standards which ensures
complete cut-off in overvoltage category III conditions
(i.e. where there is at least 3 mm between the open
contacts)
.
– Respect the connections L (Live) - N (Neutral).
– Ensure that the special power cable is only replaced
with a cable ordered as a spare part and connected
by professionally qualified personnel.
VD
2
3
EV
CN12
CN13
CN14
F
TRA
CR
SE
TA
6
5
4
3
CN15
CN3
CN5
CN6
SM1
Dual sensor (thermal safety/delivery)
SM1-2
FLM
Flow meter
Diverter valve
VD
Water pressure switch
PA
Air thermostat
TA
External sensor
SE
CR
Remote control (instead of air thermo-
stat)
m
CAUTION
Users must:
– Connect the earth wire to an effective earthing sys-
tem. The manufacturer is not responsible for any dam-
age caused by failure to earth the appliance or failure
to observe the information provided in the wiring dia-
grams
.
d
IT IS FORBIDDEN
To use water pipes for earthing the appliance.
SS
PA
FLM
TF
SM2
Fig. 15
55
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