Vaillant ECOTEC PLUS VU 80, Installation And Maintenance Instructions Manual

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Inspection and maintenance
ecoTEC plus installation and maintenance instructions 0020134823_01
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13
13.2.1 Filling the boiler and the heating
installation
A description of how to fill the boiler and heating installa-
tion is given in
section 9.3.1 .
13.2.2 Draining the boiler
>
Switch the boiler off with the on/off button.
>
Close the service valves of the boiler.
>
Start the check programme P.6.
>
Open the drain valves on the service valves.
13.2.3 Draining the entire heating installation
>
Attach a hose to the draining device on the system.
>
Bring the open end of the hose to an appropriate drain
point.
>
Start check programme P.6 ( ¬ section 11.4 ).
>
Make sure that the service valves of the boiler are open.
>
Open the drain cock.
>
Open the purging valves on the radiators.
Start from the highest radiator and then work from the
top to the bottom.
>
Once the water has drained off, close the purging valves
of the radiators and the drain cock.
13.3 Using the function menu
You can use the function menu to service the ecoTEC plus
as it allows you to control individual components of the
heating installation. In addition, the function menu offers a
programme for purging the heating circuit and the hot
water circuit.
Menu ¬ Installer level ¬ Test programmes ¬ Function
menu
>
Use the minus button or the plus button
to go to the components of the heating
installation.
>
Confirm your selection using the right-hand selection
button
("Select").
Cancelling the function test
>
Press the left-hand selection button
(" Cancel") to stop the function test.
You can test the operation of the heating installation com-
ponents listed below using the self-tests in the function
menu.
Display
Test pro-
grammes
Action
T.01 Check internal
pump You can switch the internal pump on
and off.
T.03 Check fan You can switch the fan on and off.
The fan runs at maximum rotational
speed.
T.04 Check cylinder
charge pump You can switch the cylinder charging
pump on and off.
T.06 Check external
pump You can switch the external pump on
and off.
T.08 Check burner The boiler starts, carries out the nec-
essary self-test and switches to mini-
mum load.
The display shows the status and the
temperature in turn (alternatively the
pressure). If a fault occurs, the dis-
play shows the corresponding fault
code.
13.3 Self-tests in the function menu
13.3.1 Testing components
If you have opened the function menu, you can select vari-
ous self-tests. You can use these self-tests to check the
function of the following components of the heating instal-
lation or to purge the heating circuit.
You can select the following self-tests:
Test programmes Action
Check pumps of
the pump group You can switch the pump on and off.
Check fan You can switch the fan on and off. The fan
runs at maximum rotational speed.
Check charging
pump You can switch the cylinder charging pump on
and off.
Check external
pump You can switch the external pump on and off.
Check burner The unit starts, carries out the necessary self-
test and switches to minimum load.
The display shows the status and the temper-
ature in turn (alternatively the pressure). If a
fault occurs, the display shows the corre-
sponding fault code.
End function
menu You can exit the function menu here.
The plain text display shows the current mode.
If you do not press any buttons for more than 15 minutes, test
mode is ended automatically.
13.4 Self-tests in the function menu