External Probe To Connect To The Boiler - Immergas VICTRIX PRO 1 I Series Technical Sheet

52 EXTERNAL PROBE TO CONNECT TO THE BOILER (CODE 3.015266)
52.1 EXTERNAL PROBE TO BE CONNECTED TO THE
CASCADE AND ZONE REGULATOR (CODE 3.024511)
70
VICTRIX PRO 1 I
The external probe allows to decrease or increase the max. flow
temperature to the system when the external temperature in-
creases or decreases, in order to adjust the heat supplied to the
system according to the change in external temperature.
In terms of the probe, it must be installed on the North or North-
West wall of the building (if possible) at a height of at least 3
metres from the ground. It must be in a position that is not
exposed to sudden air currents, protected from the sun's rays or
other heat sources and also protected from blows and tampering.
The probe (NTC) is connected via two wires directly to the
boiler terminal board. Once connected, it always acts without
heat adjustment kit.
The maximum admissible length is 50 metres (distance between
boiler and external probe), the cable section must be between
0.5 and 1.5 mm . In horizontal application the cable must have a
2
protective sheath with a diameter between 5 - 7 mm Ø. In vertical
application the cable outlet must always be facing downwards
to stop humidity from getting in, in which case the sheath is
not essential.
The probe (PTC) is connected by two wires directly to the
terminal board of the Cascade and zone regulator.
The maximum admissible length is 100 metres (distance between
cascade regulator and external probe), the cable section must be
between 1 and 1.5 mm , the cable must have a protective sheath
2
with a diameter between 3 - 7 mm Ø.
The cable output must always face downwards to prevent the
entry of moisture.
In terms of the probe, it must be installed on the North or North-
West wall of the building (if possible) at a height of at least 3
metres from the ground. It must be in a position that is not
exposed to sudden air currents, protected from the sun's rays or
other heat sources and also protected from blows and tampering.