Start-Up; Carrying Out The Initial Start-Up; Starting Up The Product; Calling Up Appliance Config. And Diagnostics Menu - Vaillant ecoTEC plus VU 446/5-5 (H-GB) Installation And Maintenance Instructions Manual

9

Start-up

9.1

Carrying out the initial start-up

Validity: Great Britain OR Ireland
Initial start-up must be carried out by a customer service
technician or an authorised competent person using the
Benchmark Checklist. The Benchmark Checklist in the ap-
pendix (→ Page 69) (Validity: Great Britain) of the installa-
tion instructions must be filled in and stored carefully along
with the unit's documentation.
▶
Carry out the start-up procedure using the Benchmark
Checklist in the appendix.
▶
Fill out and sign the Benchmark Checklist.
9.2

Starting up the product

▶
Press the product's on/off button.
◁
The basic display appears on the display.
9.3 Calling up appliance config. and diagnostics
menu
To recheck and reset the most important system parameters,
call up the Appliance config. menu item.
Menu → Installer level → Appliance config.
The setting options for more complex installations can be
found in the Diagnostics menu.
Menu → Installer level → Diagnostics menu
Overview of diagnostics codes (Validity: VU 446/5-5 (H-GB)
OR VU 606/5-5 (H-GB)) (→ Page 55)
9.4

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.
▶
Confirm the launch of the installation assistant.
◁
All heating demands are blocked whilst the installa-
tion assistant is active.
▶
To access the next item, confirm by pressing Next in
each case.
▽
If you do not confirm the launch of the installation
assistant, it is closed 10 seconds after you switch on
the unit and the basic display then appears.
9.4.1 Language
▶
Set the required language.
▶
Press OK twice to confirm the set language and to avoid
unintentionally changing it.
If you have unintentionally set a language that you do not
understand, proceed as follows to change it:
▶
Press and hold the and
▶
Also press the reset button for a short time.
▶
Press and hold and
language setting option.
▶
Select the required language.
▶
Press OK twice to confirm this change.
32
buttons at the same time.
until the display shows the
9.4.2 Filling the heating circuit
This function is displayed but it is not yet active for this
product type.
9.4.3 Purging the heating installation
Purging (corresponds to check programme P.00) is activated
automatically by the installation assistant and remains in
the display for as long as the purging is active. Without the
installation assistant, purging also occurs automatically.
The programme must be carried out once or else the product
will not start.
▶
If the radiators in the house are equipped with thermo-
static valves, ensure that all thermostatic valves are open
so that the circuit can be purged effectively.
▶
To ensure that the purging takes place correctly, the
filling pressure of the heating installation must not fall be-
low the minimum filling pressure.
–
Minimum heating installation filling pressure:
0.08 MPa (0.80 bar)
Note
Check programme P.00 runs for approx.
6.5 minutes for each circuit.
At the end of the filling procedure, the filling
pressure of the heating installation must be at
least 0.02 MPa (0.2 bar) above the counter-
pressure of the expansion vessel ("Exp")
≥ P
(P
Installation
If, at the end of the purge programme, the flow rate that is
achieved is insufficient, fault code F75 appears in conjunc-
tion with diagnostics code D.149 = 8. The purge programme
is considered to have failed and is repeated.
▶
Ensure that all of the stopcocks in the hydraulic installa-
tion are open.
▶
Ensure that the thermostatic valves on the radiators are
open.
▶
Press the product's reset button to restart an automatic
purge programme.
▶
Check all connections for tightness.
9.4.4 Setting the target heating temperature
You can use this setting to adjust the required target heating
temperature.
9.4.5 Setting the target hot water temperature
This setting is only possible if a domestic hot water cylin-
der (optional) is installed in the system. This means that the
required target hot water temperature can be adjusted (by
post-heating the cylinder).
9.4.6 Setting the maximum heating output
The product's maximum heating output can be adjusted to
the installation's heat demand. Use diagnostics code D.000
to set a value that corresponds to the unit output in kW.
9.4.7 Additional relay and multi-functional module
Additional components that are connected to the installa-
tion can be adjusted in these menu items. You can use dia-
gnostics codes D.026, D.027 and D.028 to change the set-
ting.
Installation and maintenance instructions ecoTEC plus 0020261389_03
+ 0.02 MPa (0.2 bar)).
Exp