Setting The Heating Flow Temperature; Setting The Hot Water Temperature; Switching Comfort Mode On And Off; Switching Off The Product's Functions - Vaillant ecoTEC pro Operating Instructions Manual

4 Operation
4.8

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).
4.9

Setting the hot water temperature

1.
Press ( ).
◁
The set hot water temperature flashes in the display.
Conditions: No controller connected
▶
Change the hot water temperature by pressing
.
▶
Confirm by pressing
Conditions: Controller connected
▶
Use to set the maximum possible hot water temper-
ature on the product.
▶
Confirm by pressing
▶
Set the required hot water temperature on the controller
(→ Controller operating instructions).
4.10

Switching Comfort mode on and off

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 ( ).
◁
Comf. on or Comf. off are shown flashing in the
display.
3.
Activate or deactivate Comfort mode by pressing
.
4.
Press to confirm this change.
◁
When you have activated Comfort mode, the
bol appears in the basic display. When you have
deactivated Comfort mode, the " " symbol goes out
in the basic display.
8
.
.
or
.
.
4.11

Switching off the product's functions

4.11.1 Switching off heating mode (Summer
mode)
1. To switch off heating mode without switching off the hot
water generation, press
◁
The value of the heating flow temperature appears
in the display.
2.
Use the button to set the heating flow temperature to
Off.
3.
Confirm by pressing
◁
Heating mode is switched off.
◁
The symbol appears in the display.
4.12 Guaranteeing the correct filling pressure of
the heating system
4.12.1 Checking the filling pressure of the heating
installation
Note
To ensure that the heating installation operates
smoothly, the filling pressure when the heating
installation is cold must be between 0.1 MPa and
0.2 MPa (1.0 bar and 2.0 bar) or lie between the
two dashed lines in the bar graph display.
If the heating installation extends over several
storeys, a higher filling pressure may be required
for the heating installation. Ask a competent per-
son for details.
In addition, the
one minute.
If the filling pressure in the heating installation
falls below 0.05 MPa (0.5 bar), then the product
switches off. The display alternates between the
fault message F.22 and the current filling pres-
sure.
1.
Press twice.
◁
The values for the current filling pressure and for the
minimum and maximum filling pressures appear in
the display.
2. Check the filling pressure in the display.
1 / 2
System pressure: 0.1 ... 0.2 MPa (1.0 ... 2.0 bar)
The filling pressure is in the intended pressure range.
2 / 2
Filling pressure: < 0.08 MPa ( < 0.80 bar)
▶
Fill the heating installation. (→ Page 9)
◁
If you have topped up the installation with suf-
ficient heating water, the display automatically
or
disappears after 20 seconds.
sym-
Operating instructions ecoTEC pro 0020209590_00
( ).
.
symbol appears after approx.