Connecting CH and DHW pumps
Use the socket given attached with the boiler to make the pump
connection. Incorrect core termination can cause severe injuries and
damage to the equipment. Take care not to interchange wires "L1" and
"N". Recommended connecting cable H05VV-F3G 0.50 mm2
3-way valve connection
If the 3-way valve connection is wanted
remove the DHW pump cable connections
from the pins 22-23 and connect the 3-way
valve as seen in the diagram.
Buffer and DHW NTC probes
Buffer and DHW probes are not supplied
with the boiler. In case of buffer or DHW
tank installation the probes should be
purchased separately.
NTC probe specifications:
NTC 10K @25 °C: 120 °C Max
External thermostat
The external thermostat can be used to turn the combustion system on and off. In
this case the controller ignores all internal temperature thresholds and is operating
exclusively with the thermostat input. To configure this option, connect the external
thermostat to : IN9, pins 48
–
49.
WARNING
