External Temperature Probe (Optional) - Immergas VICTRIX EXA 24 X 1 ERP Instruction Booklet And Warning

1.10 EXTERNAL TEMPERATURE PROBE (OPTIONAL).

The boiler is designed for the application of the external temper-
ature probe (Fig. 7), which is available as an optional kit. Refer to
the relative instruction fiche for positioning of the external probe.
The probe can be connected directly to the boiler electrical
system and allows the max. system flow temperature to be au-
tomatically decreased when the external temperature increases,
in order to adjust the heat supplied to the system according to
the change in external temperature. The external probe always
operates when connected, regardless of the presence or type of
room chrono-thermostat used and can work in combination with
Immergas chrono-thermostats. The correlation between system
flow temperature and external temperature is determined by the
position of the central heating selector switch on the boiler control
panel (or on the CAR control panel if connected to the boiler)
V2
according to the curves shown in the diagram (Fig. 8). The electric
connection of the external probe must be made on clamps 38 and
39 on the terminal board in the boiler control panel (Fig. 38).
Correction law of the flow temperature depending on the external temperature
and user adjustment of the central heating temperature.
7
EXTERNAL PROBE
Position of the central heating
temperature user adjustment
8
15