CP S
L
Line
N
Neutral
F1
Fuse (3.15AT)
F2
Fuse (4AR)
TRA
Ignition transformer
PI
System pump
V
Fan
EAR
Ignition / Detection electrode
EV
Gas solenoid valve
SS
Domestic hot water sensor
SM1-2
Dual sensor (thermal safety/
delivery)
FLM
Flow meter
VD
Diverter valve
TPA
Pressure transducer
TA
Air thermostat
PA
High pressure switch
SE
External sensor
SR
Return Probe
SIA
Air inlet probe
APS
Air pressure switch
EXP
Expansion card
CP
Compressor
CR
Remote control (instead of air
thermostat)
To connect the "Air Thermostat" or, alternatively the "Remote Control", remove the bridge between
terminals 5-6.
Fig. 14
m
CAUTION
Users must:
– Use an omnipolar cut-off switch, disconnect switch
in compliance with EN Standards
– 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
m
CAUTION
Users must:
– Connect the earth wire to an effective earthing
system. The manufacturer is not responsible for any
damage caused by failure to earth the appliance or
failure to observe the information provided in the
wiring diagrams.
d
IT IS FORBIDDEN
To use water pipes for earthing the appliance.
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