Checking Leak-Tightness; Operation; Operating Concept Of The Product; Calling Up The Installer Level - Vaillant ecoVIT exclusiv Installation And Maintenance Instructions Manual

6 Operation

5.10

Checking leak-tightness

Before you hand the product over to the operator:
▶
Check the gas pipe and the heating circuit for tightness.
▶
Check that the air/flue pipe has been installed correctly.
6 Operation
6.1

Operating concept of the product

The operating concept and the display and setting options of
the end user level are described in the operating instructions.
You can access the installer level with the parameters and
system-relevant settings after entering the service code.
6.2

Calling up the installer level

1. Press the i and + buttons at the same time to activate
diagnostics mode.
Use the – or + buttons to select diagnostics code D.97.
2.
3. Press the i button.
Use the − or + button to set the value to 17.
4.
5. Press and hold the i button for 5 seconds (until the
display stops flashing) to save the value.
Note
The system automatically exits the installer
level after 15 minutes. Pressing the +, – or i
button will extend this time by 15 minutes.
7

Start-up

7.1

Carrying out the initial start-up

Initial start-up must be carried out by a customer service
technician or an authorised competent person.
Any further start-up/operation work is carried out by the oper-
ator as described in the operating instructions.
Danger!
Risk of death due to escaping gas!
An improper gas installation or a defect may
impair the operational safety of the product
and lead to personal injury and material dam-
age.
▶
Check the gas tightness of the product
before starting it up and after each inspec-
tion, maintenance or repair.
The product is operated and the various parameters or op-
erating statuses are set via the operator control panel on the
electronics box. You can access the installer level with para-
meters and system-relevant settings after entering the ser-
vice code.
▶
When starting up the unit, proceed in accordance with
the attached checklist.
16
Commissioning checklist (→ Page 37)
7.2

Calling up the check programmes

1. Press and hold the + button and, at the same time,
briefly press the Reset button. Only release the + but-
ton once P.00 is shown in the display.
Check programmes – Overview (→ Page 26)
Press the + or − button to switch to the next check pro-
2.
gramme.
3. Press the i button to start the check programme.
7.3

Reading off the filling pressure

The product comes with a digital pressure indicator.
▶
To read off the digital value for the filling pressure, press
the – button briefly.
◁
The display will show the filling pressure for approx-
imately 5 seconds.
If the heating installation is full, the filling pressure must be
between 0.1 MPa and 0.2 MPa (1.0 bar and 2.0 bar) to en-
sure it operates properly.
If the heating installation extends over several storeys,
higher filling pressures may be required to avoid air entering
the heating installation.
7.4

Preventing low water pressure

To prevent damage to the heating installation that is caused
by low filling pressure, the product is fitted with a water
pressure sensor. If the filling pressure falls below 0.06 MPa
(0.6 bar), the product indicates low pressure by displaying a
flashing pressure value. If the filling pressure falls below 0.03
MPa (0.3 bar), the product switches off. The display shows
F.22.
▶
Top up the heating water to start the product up again.
The pressure value flashes in the display until a pressure of
0.06 MPa (0.6 bar) or higher has been reached.
▶
If you notice frequent drops in pressure, determine and
eliminate the cause.
7.5 Checking and treating the heating
water/filling and supplementary water
Caution.
Risk of material damage due to poor-qual-
ity heating water
▶
Ensure that the heating water is of suffi-
cient quality.
▶
Before filling or topping up the installation, check the
quality of the heating water.
Checking the quality of the heating water
▶
Remove a little water from the heating circuit.
▶
Check the appearance of the heating water.
▶
If you ascertain that it contains sedimentary materials,
you must desludge the installation.
▶
Use a magnetic rod to check whether it contains mag-
netite (iron oxide).
Installation and maintenance instructions ecoVIT exclusiv 0020258610_00