Switching Off The Product's Functions; Guaranteeing The Correct Filling Pressure In The Heating Circuit - Vaillant ecoTEC pure Operating Instructions Manual

4 Function
Conditions: The temperature is controlled via the
domestic hot water cylinder's temperature sensor.
▶
Set the hot water temperature on the
controller. See the instructions for the
controller.
4.6 Switching off the product's
functions
4.6.1 Switching off heating mode
(Summer mode)
Conditions: The temperature is controlled by the
product
▶
Press .
◁
The heating flow temperature
flashes in the display.
▶
Press and press and hold
OFF is shown in the display.
◁
is shown in the display.
▶
Confirm by pressing
◁
Heating mode is switched off.
▶
Press .
◁
The display switches to the basic
display.
Conditions: Controller-regulated temperature
▶
You cannot switch off heating mode on
the product. See the instructions for the
controller.
4.6.2 Switching off the hot water
handling mode
Conditions: Temperature regulated by the product
or by the room temperature controller
▶
Press .
◁
The domestic hot water temperature
now flashes in the display.
▶
Press and press and hold
OFF is shown in the display.
◁
is shown in the display.
▶
Press to confirm.
◁
Hot water generation is switched off.
12
4.7 Guaranteeing the correct
4.7.1 Checking the system pressure
until
.
1. Press
2. Check the system pressure on the
until
Operating instructions ecoTEC pure 0020258017_00
▶
Press .
◁
The display switches to the basic
display.
filling pressure in the heating
circuit
Note
Your product has a pressure
sensor and a digital pressure
indicator.
The product switches to fault mode
if the pressure falls below the re-
quired system pressure (below
0.05 MPa (0.5 bar)). If the heating
installation extends over several
floors, a higher system pressure
may be necessary. Ask your com-
petent person for details.
twice.
◁
The current system pressure is
shown in the display.
display.
1 / 2
System pressure: 0.08 ... 0.2 MPa
(0.80 ... 2.0 bar)
The system pressure is in the intended
pressure range.
2 / 2
System pressure: < 0.08 MPa
(< 0.80 bar)
▶
Fill the heating installation.
(→ Page 13)
◁
When you have reached a suffi-
cient pressure range, the display
disappears after 20 seconds.