Switching On The Product; Setting The Language; Setting The Domestic Hot Water Temperature; Switching Comfort Mode On And Off - Vaillant ecoTEC exclusive 627 Operating Instructions Manual

4 Operation
4.8

Switching on the product

2
50
▶
Press the on/off button (1).
◁
The "Basic display" (→ Page 7) (2) appears on the
display.
4.9

Setting the language

1.
Press and hold and
2.
Also briefly press .
3.
Press and hold and
language setting.
4.
Select the required language by pressing
5.
Confirm by pressing
6.
Once you have set the correct language, press
again to confirm this.
4.10

Setting the domestic hot water temperature

Danger!
Risk of death from legionella.
Legionella multiply at temperatures below
60 °C.
▶
Have a competent person inform you
about the measures that should be taken
to protect against Legionella in your in-
stallation.
▶
Do not set any water temperatures below
60 °C without consulting the competent
person first.
1.
Press ( ).
◁
The set domestic hot water temperature flashes in
the display.
Conditions: No control connected
▶
Change the domestic hot water temperature by pressing
or .
▶
Confirm by pressing
Conditions: Controller connected
▶
Use to set the maximum possible domestic hot water
temperature on the product.
▶
Confirm by pressing
▶
Set the required domestic hot water temperature on the
control (→ Control operating instructions).
8
at the same time.
until the display shows the
or
.
.
.
4.11

Switching Comfort mode on and off

Applicability: Product with integrated hot water generation
Note
Comfort mode immediately supplies hot water at
the required temperature, without you having to
wait for the water to heat up.
1.
Press (
2.
Press (
◁
Comfort on or Comfort off are shown flashing in
1
the display.
3.
Activate or deactivate Comfort mode by pressing
respectively.
4.
Press to confirm this change.
◁
When you have activated Comfort mode, the " "
symbol appears on the basic display. When you
have deactivated Comfort mode, the " " symbol
goes out on the basic display.
4.12

Setting the heating flow temperature

1.
Press ( ).
.
◁
The target value of the heating flow temperature
appears on the display.
Note
The competent person may have adjusted
the maximum possible temperature.
Conditions: No controller connected
▶
Use or to set the required heating flow temperat-
ure.
▶
Confirm by pressing
Conditions: Controller connected
▶
Set the maximum possible heating flow temperature on
the product.
▶
Confirm by pressing
▶
Set the required heating flow temperature on the control-
ler (→ Controller operating instructions).
4.13

Switching Green iQ mode on and off

Note
Green iQ mode is an energy-saving operating
mode. If this mode is activated, the product oper-
ates in the heating and cylinder charging mode in
such a way that the maximum benefits associated
with condensing technology are achieved.
1.
Press and
◁
The menu is called up.
2.
Navigate to the Green iQ menu item and press
Operating instructions ecoTEC exclusive 0020193967_01
).
).
.
.
at the same time.
or
.