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3.14 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 (100 s ON, 20 s OFF) and the 3-way valve (120 s D.H.W., 120 s C.H.).
The function is activated by accessing the special "dl" function as described in the Paragraph 3.13.
The function lasts for 16.5 hours and it can be stopped by simply pressing the button "
Activation of the function is signalled by the countdown displayed on the indicator (Ref. 20, Fig. 49).
3.15 FLUE INSTALLATION (FU)
To activate the "Flue" function access the special functions as described in Paragraph 3.13 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 (6000 rpm) for 15 minutes.
In this phase the symbols (
stopped by simply pressing the button "
3.16 MAINTENANCE FUNCTION (MA)
Using this function, you can activate some operating devices of the appliance without starting it, thus verifying operation.
The function is active for 15 minutes and it can be stopped by pressing the button "
To activate the "Maintenance" function, access the special functions as described in Paragraph 3.13 and select the "MA" function.
The following loads can be activated within this function:
- Fan (Fn): the fan is brought to ignition speed. Using the buttons "
- Circulator (Pu): the circulator is brought to maximum speed, the relative speed is shown on the display, using the buttons "
can increase or decrease the circulator speed.
- Three-way (3d): the symbol is shown on the display according to the position of the valve, DHW (
the buttons "
" you can change the valve position, taking care to wait for the completion of passage between statuses.
- Configurable relay (rl): the configurable relay in the boiler is energised.
At the end of manual forcing operations, always switch the indoor unit off and back on before returning to normal operation.
) and (
) are displayed flashing, while the symbol (
".
".
) is displayed permanently on, the function can be
".
" you can increase or decrease the fan speed.
" you
) or central heating (
), using
103
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