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3.17 AUTOMATIC VENT FUNCTION (DL)
In the case of new central heating systems and in particular mode for floor systems, it is very important that deaeration is performed cor-
rectly.
The function consists of the cyclic activation of the pump and the 3-way valve (both in DHW and CH position).
By default, the function activates automatically for 10 minutes when the boiler is powered on.
This automatic activation can be disabled by setting parameter A.8 = 0.
The function can be activated manually by entering the special functions as described in Paragraph 3.14 and selecting "dI". In this case, it
has a duration of 16.5 hours.
When it has activated, the indication"dI" appears on the DHW digits and the time remaining until the end of the function in tenths of
minutes appears on the CH digits.
The display of the symbols (
When the function has ended, the boiler automatically goes back to the initial status. The flashing "RESET" symbol (yellow) indicates the
option to stop the function in advance by pressing the relative key.
3.18 FLUE INSTALLATION (FU)
To activate the "Flue" function access the special functions as described in Paragraph 3.14 and select the "FU" function.
Before performing the test, ensure that the condensate drain trap has been filled correctly and check that there are no obstruc-
tions in the air intake circuit and flue exhaust and that the sealed chamber is perfectly closed and the flue has already been in-
stalled.
Using this function activates the fan at a fixed speed (5500 rpm) for 15 minutes.
At this stage, the symbol "RESET" flashes on the display; it is possible to interrupt the function by simply pressing the 'RESET' button.
110
+
-
RESET
) and (
) indicates whether the function is active in domestic hot water or central heating mode.
INFO
MODE
+
-
81
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