Filling The Condensate Trap; Flushing The Heating Installation For The First Time ("Cold"); Switching On The Product; Running The Installation Assistants - Vaillant ecoTEC plus VU Series Installation And Maintenance Instructions Manual

Additives for frost protection intended to remain
permanently in the installation
–
Adey MC ZERO
–
Fernox Antifreeze Alphi 11
–
Sentinel X 500
▶
If you have used the above-mentioned additives, inform
the end user about the measures that are required.
▶
Inform the end user about the measures required for frost
protection.
9.3

Filling the condensate trap

C
1. Unclip the lower section of the condensate trap (1) from
the upper section of the condensate trap (2).
2. Remove the float (3).
3. Fill the lower section of the condensate trap with water
up to 10 mm below the upper edge of the condensate
discharge pipe.
4. Re-insert the float (3).
Note
Check whether the float is present in the
condensate trap.
5. Clip the lower section of the condensate trap (1) into the
upper section of the condensate trap (2).
9.4 Flushing the heating installation for the first
time ("cold")
Note
The complete heating system must be flushed
at least twice: Once with cold water and once
with hot water in accordance with the following
instructions.
1. Check whether all thermostatic radiator valves and both
service valves on the product are open.
2. Connect a hose to the drain valve that is located at the
lowest position in the heating system.
3. Open the radiator valves and the drain valves so that
the water can drain quickly. Start at the next point in the
0020238195_07 ecoTEC plus Installation and maintenance instructions
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B
A
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installation and open the purging valves on the radiators
so that the contaminated water can completely drain.
4. Close the drain cocks.
5. Refill the heating system with water.
6. Close the filling valve and the cold water tap.
9.5

Switching on the product

▶
Switch on the product via the main switch installed on-
site.
9.6

Running the installation assistants

The installation assistant is displayed whenever the product
is switched on until it has been successfully completed.
It provides direct access to the most important check
programmes and configuration settings for starting up the
product.
To recheck and reset the most important system parameters,
call up the Unit configuration.
Menu → Installer level → Appliance config.
The setting options for more complex installations can be
found in the Diagnostics menu.
Menu → Installer level → Diagnostics menu
▶
Press to confirm installation assistant start-up.
◁
All heating and domestic hot water demands are
blocked whilst the installation assistant is active.
Note
3
If you do not confirm the launch of the install-
ation assistant within 10 seconds of switching
the system on, the basic display reappears.
▶
To access the next point, confirm by pressing
case.
9.6.1 Language
▶
Set the required language.
▶
To confirm the set language and to avoid unintentionally
changing it, press
If you have unintentionally set a language that you do not
understand, proceed as follows to change it:
▶
Press and hold
▶
Also briefly press
▶
Press and hold
language setting option.
▶
Select the required language.
▶
Press twice to confirm this change.
9.6.2 Filling mode
Filling mode (check programme P.06) is activated automatic-
ally in the installation assistant for as long as the filling mode
appears on the display.
twice to confirm this.
and at the same time.
.
and until the display shows the
in each
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