Flue Pressure Switch - Immergas EOLO Mini Technical Documentation Manual

Technical documentation Technical documentation

- FLUE PRESSURE SWITCH (4)

This is positioned in the upper internal part of the sealed chamber and, by means of the special
points, detects the difference in pressure between the top of the draught diverter (the point where the
extractor is positioned and operates) and the inside of the sealed chamber.
The signal measured by the pressure switch varies according to the length of the extraction/exhaust
ends and can be measured by means of the special pressure points on the top part of the sealed
chamber (8-9).
When this trips, a switch (SV) is closed which controls the adjustment board and enables or prevents
the burner from igniting.
ON OFF
Switch on and switch-off pressure - Pa (mm H O) 61 (6,1) 47 (4,7)
2
- FAN (3)
The extractor operates downstream of the combustion chamber and is fastened vertically to the top
part of the diverter (5) from which it extracts the flue and conveys these into the exhaust pipes to
which the boiler is to be connected.
This is controlled by the adjustment board and its operation essentially coincides with that of the
burner.
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STEME ed. 07/03 EOLO MINI