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− Open the cover (D) to access the internal terminals and make the connections as shown in the diagram below.
CR
SE
M4
SOLAR COLLECTOR TEMPERATURE SENSOR (SColl)
9
A resistance (R) is connected to the terminals
of the extension cable (C) to allow the boiler to
start up if no solar temperature sensor is used.
If the installation uses a solar temperature sensor,
remove the resistance (R) and connect the sensor to
the terminals (M).
9
The following instructions are mandatory:
1
Use a multi-pole magnetic thermal trip switch and
disconnector conforming to IEC-EN standards (with
a contact gap of at least 3 mm).
2
Respect the L (Phase) - N (Neutral) polarity.
Use cables with a cross section of 1.5 mm 2 or more,
3
complete with end terminals.
4
Always refer to the electrical wiring diagrams in this
manual when performing any electrical work.
5
Ensure that an efficient ground connection is pro-
vided.
0
It is strictly forbidden to use fuel and/or water pipes
to ground the appliance.
The manufacturer declines all responsibility for dama-
ge caused by failing to ground the appliance adequa-
tely or by failure to respect the wiring diagrams provi-
ded in this manual .
D
TA
nero
TBT/ACP
M3a
M5
M4a
Key
CR
Remote control
SE
Outdoor temperature sensor
TA
Room thermostat
F
Fuse 3.15A F (fast)
TBT
Low temperature thermostat
APC
Condensate pump alarm
M3÷M5 Connection terminals
F
M3
C
R
29
INSTALLER
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