ARCA GRA115RO, Установка - Использование - Обслуживание

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5.3. Probe connections
For correct boiler operation the water temperature probes and safety thermostat sensor must be positioned
correctly. The control unit comes pre-wired with the outlet probe S4 - 3 m of cable (terminals 47, 48 page 15),
the return probe S5 - 3 m of cable (terminals 45, 46 page 15) and the safety thermostat (terminals 63, 64
page15).
These must be positioned as shown in the following figure:
5.4. Flue gas probe connection
The flue gas probe is already wired on the
electronic board to terminals 31 – 32, as shown
in the figure on page 15.
This must be fitted at the rear of the boiler:
near the chimney attachment is a socket for
inserting the probe.