Restarting The Installation Assistants; Test Programmes; Filling The Heating Installation; Checking The Gas Setting - Vaillant ecoTEC plus VU Series Installation And Maintenance Instructions Manual

9.6.3 Purging
1. Unlike in the Check programmes menu, to purge the
system, start check programme P.00 by pressing
.
2. If you need to change the circuit that is to be purged,
press .
9.6.4 Target flow temperature, domestic hot water
temperature
1. To set the target flow temperature and domestic hot
water temperature, use
2. Press to confirm this setting.
Condition: Water hardness: > 3.57 mol/m³, Product with connected cylinder
Danger!
Risk of death from legionella.
Legionella multiply at temperatures below
60 °C.
▶
Ensure that the end user is familiar with
all of the Anti-legionella measures in or-
der to comply with the applicable regula-
tions regarding legionella prevention.
▶
Set the domestic hot water temperature.
– Water temperature: ≤ 50 ℃
9.6.5 Partial heat load
The partial heat load of the product is set to Auto at the fact-
ory. The product independently determines the optimum heat
output depending on the current heat demand of the install-
ation. You can retroactively change the setting in the Dia-
gnostics menu under D.000.
9.6.6 Additional relay and multi-functional module
1. If you have connected additional components to the
product, assign these components to the individual re-
lays.
2. In each case, confirm by pressing
Note
This setting can be retroactively changed in
the Diagnostics menu using D.026, D.027
and D.028.
9.6.7 Contact details
▶
If required, store your telephone number in the Unit con-
figuration (max. 16 digits/no blank spaces). The end
user can view the telephone number.
9.6.8 Ending the installation assistant
▶
Once you have run through the installation assistant suc-
cessfully, confirm by pressing
◁
The installation assistant will close and will not launch
again when the product is next switched on.
28
or
and .
.
.
9.7

Restarting the installation assistants

Menu → Installer level → Start inst. assistant
You can restart the installation assistant at any time by call-
ing it up in the menu.
9.8

Test programmes

Menu → Installer level → Test programs
As well as the installation assistants, you can also call up
the following test programmes for start-up, maintenance and
troubleshooting.
–
Check programmes
–
Function menu
–
Electronics self-test
9.9

Filling the heating installation

▶
Fill the heating installation with the maximum possible
volume flow.
9.10

Checking the gas setting

Only a qualified competent person is authorised to imple-
ment the settings on the gas valve assembly.
Each destroyed seal must be replaced.
The CO₂ adjusting screw must be sealed.
Never modify the factory setting of the gas pressure regu-
lator of the gas valve assembly.
9.10.1 Checking the air/flue pipe/flue gas
recirculation
1. Check the flue gas installation is intact in accordance
with the latest gas safe technical bulletin and informa-
tion supplied in the installation instructions.
2. For extended flue gas installations check for flue gas
recirculation using the air analysis point.
3. Use a flue gas analyser.
4. If you discover unusual levels of CO or CO
ply air, search for the leak in the flue system or for signs
of flue gas recirculation.
5. Eliminate the damage properly.
6. Check again whether the supply air contains any un-
usual levels of CO or CO
7. If you cannot eliminate the damage, do not start up the
product.
9.10.2 Checking the gas flow rate
The gas flow rate has been set during production and does
not require adjustment. With the front casing fitted check the
gas flow rate of the boiler as follows:
▶
Start up the product with the check programme P.01.
▶
In addition, ensure that maximum heat can be dissipated
into the heating system by turning up the room thermo-
stat.
▶
Wait at least 5 minutes until the boiler has reached its
operating temperature.
▶
Ensure that all other gas appliances in the property are
turned off.
▶
Measure the gas flow rate at the gas meter.
▶
Compare the measured values with the corresponding
values in the table.
Installation and maintenance instructions ecoTEC plus 0020238195_07
in the sup-
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