Vaillant ecoTEC plus SERIES Operating Instructions Manual - page 16
Operation
16
Operating instructions ecoTEC plus 0020116701_00
5
5.3.1
Setting the hot water temperature
45
DHW temperature
Back
5.6 Setting the hot water temperature
> Press the left-hand selection button
("
").
The hot water temperature that is set is shown flashing on
the display.
> Use the minus button
or the plus button
to change the hot water temperature.
> Confirm the change by pressing the right-hand selection
button
("OK").
If you have connected an eBUS auto controller to the boiler,
you can set the hot water target temperature on the con-
troller.
> Ask your approved competent person whether an eBUS
auto controller is connected.
If you are using an eBUS auto controller:
> Set the hot water temperature on the boiler to the maxi-
mum possible temperature.
> Set the desired hot water temperature (hot water target
temperature) on your controller.
5.3.2
Activating/deactivating Comfort mode
Comfort mode immediately supplies you with hot water at
the required temperature, without you having to wait for
the water to heat up. To do this, the plate-type heat
exchanger of the ecoTEC plus is kept at your selected tem-
perature level.
Comfort operation
Comfort on
Back
5.7 Switching Comfort mode on and off
> Press the left-hand selection button
("
").
> Press the right-hand selection button
(" ").
"Comfort mode on" or "Comfort mode off" flashes in the
display.
> Use the minus button
or the plus button
to activate or deactivate the comfort mode.
> Confirm the change by pressing the right-hand selection
button
("OK").
When you have activated Comfort mode, the symbol " " is
shown in the basic display.
When you have deactivated Comfort mode, the symbol " "
goes out in the basic display.
5.3.3
Setting the cylinder charging mode
(VUI 937 only)
If an additional stratified storage tank is connected, you can
switch cylinder charging on and off using the controller on
your boiler.
"Cylinder charging mode" refers to the process for heating
up the cylinder.
i
Cylinder charging is deactivated ex-works and
must be activated during initial start-up.
The cylinder charging of the layer storage tank is only
active if Comfort mode is switched on.
If Comfort mode is activated, the symbol " " appears in the
display (¬ Section 5.3.2).
When cylinder charging is switched on, the following tem-
peratures can be set for the hot water temperature (¬ Sec-
tion 5.3.1):
– minimum temperature
50 °C
– maximum temperature
65 °C
When cylinder charging is switched off, the following tem-
peratures can be set for the hot water temperature (¬ Sec-
tion 5.3.1):
– minimum temperature
35 °C
– maximum temperature
65 °C
If cylinder charging is switched off, the storage tank is not
held at temperature. If you draw off the water, the boiler
switches on and, in this case, only operates on the through-
flow principle.