Operation; Overview Of The Operating Elements - Vaillant ecoTEC SERIES Operating Manual

3 Instructions on operation

4 Operation

These pumps undoubtedly enhance the convenience of
the hot water generation process. But they also need
power. And circulating hot water that is not used cools
off when passing through pipes and then needs to be
reheated. Therefore, circulation pumps are to be oper-
ated only when hot water is actually needed for the
household. Individual timer programs can be defined
using switching clocks, which are already installed or
can be retrofitted in most circulation pumps. Weather
compensators often have ancillary functions for control-
ling circulation pump timings. Consult your heating engi-
neer. Another option is to turn on the circulation only
for concrete needs for a specific period of time by using
a button or switch installed near a frequently used
water plug. A corresponding button can be connected to
the Vaillant ecoTEC electronics.
Ventilating residential spaces
During the heating period, open windows only for venti-
lation and not for temperature regulation. A brief im-
pact-ventilation is more effective and energy-saving
than windows that are kept open for a long time. We
recommend that the windows be opened fully for a
short period. When ventilating the room, close all ther-
mostatic valves in the room or specify the minimum
temperature at the room thermostat (if installed). These
measures guarantee a sufficient exchange of air and
avoid unnecessary cooling and loss of energy (e.g. due
to unwanted activation of the heating system during
ventilation).
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4 Operation
4.1

Overview of the operating elements

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Fig. 4.1 Operating elements ecoTEC
To open the front panel, hold the recess and pull it
down. You can now see the controls with the following
functions (cp. Fig. 4.1):
1 Display indicating the current heating flow tem-
perature, the filling pressure of the heating sys-
tem, the operating mode and other additional
information
2 Button "i" for calling up information
3 Controller (accessory)
4 Pressure gauge showing the filling or operating
pressure in the heating system
5 Button for switching the unit on and off.
6 "+" button for navigating forwards through the
display view (used by expert technician to speci-
fy settings and for troubleshooting) or displaying
the storage temperature (VU with cylinder
sensor)
7 "–" button for navigating backwards through the
display view (used by expert technician to speci-
fy settings and for troubleshooting) and for dis-
playing the filling pressure of the heating system
8 "Fault resolution" button for resetting the sys-
tem in the case of specific faults
9 Rotary knob for setting the heating feed
temperature
Operating manual ecoTEC 0020052777_00
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