Switching Off The Product's Functions; Care And Maintenance; Caring For The Product; Maintenance - Vaillant ecoTEC plus Operating Instructions Manual

5 Care and maintenance

◁
The set target hot water temperature
that is set flashes on the display.
▶
Change the domestic hot water temper-
ature by pressing
▶
Press ( ) to confirm this change.
4.10 Switching off the product's
functions
4.10.1 Switching off heating mode
(Summer mode)
1. To switch off heating mode without
switching off the domestic hot water
generation, press
◁
The value of the heating flow tem-
perature appears in the display.
2. Use the button to set the heating
flow temperature to Heating off.
3. Confirm by pressing
◁
Heating mode is switched off
◁
The symbol appears in the
display.
4.10.2 Deactivating the domestic
hot water generation
1. To deactivate cylinder charging while
leaving heating mode active, press
( ).
◁
The set domestic hot water temper-
ature flashes in the display.
2. Use the button to set the domestic
hot water temperature to Heating off.
3. Confirm by pressing
◁
Cylinder charging is switched off.
◁
Only the cylinder's frost protection
function remains active.
14
or .
( ).
.
.
Operating instructions ecoTEC plus 0020261390_01
5 Care and maintenance

5.1 Caring for the product

▶
Clean the casing with a damp cloth and
a little solvent-free soap.
▶
Do not use sprays, scouring agents,
detergents, solvents or cleaning agents
that contain chlorine.

5.2 Maintenance

Applicability: Except Great Britain
An annual inspection and biennial main-
tenance of the product carried out by a
competent person is a prerequisite for
ensuring that the product is permanently
ready and safe for operation, reliable,
and has a long service life. The inspec-
tion may require maintenance to be carried
out earlier, depending on the results.
Applicability: Great Britain
An annual inspection of the product carried
out by a competent person is a prerequis-
ite for ensuring that the product is perman-
ently ready and safe for operation, reliable,
and has a long working life.
5.3 Draining the heating
installation
When the unit is switched off for an exten-
ded period, frost protection can be guar-
anteed by completely draining the heating
installation and the product.
▶
Consult a competent person about this.
5.4 Guaranteeing the correct
filling pressure in the heating
circuit
5.4.1 Heating installation filling
pressure
If the heating installation's filling pressure
falls below a value of 0.05 MPa (0.5 bar),
the product switches off. The display al-
ternates between fault message F.22 and
the current filling pressure. In addition,