Energy-Saving Tips; Saving Energy; Saving Energy By Using The Control System Correctly - Vaillant geoTHERM VWS 220/2 Instrucciones De Operación

3 Unit function and design
3.5

Energy-saving tips

Below you will find important tips to help you operate your
heat pump in an energy and cost-saving manner.
3.5.1

Saving energy

You can even save energy by your general behaviour:
– Ventilate correctly:
Do not leave windows or French windows tilted open, but
rather open the windows wide 3 - 4 times a day for 15
minutes and turn down the thermostatic radiator valves
or room thermostats while ventilating.
– Use a ventilation system with heat recovery.
The optimum exchange of air in the building is always
guaranteed by the use of a ventilation system with heat
recovery (windows no longer need to be opened for ven-
tilation purposes). If necessary, the air flow can be
matched to your individual requirements with the venti-
lation unit's remote control.
– Check that windows and doors are airtight and keep
shutters and blinds closed at night, so that as little heat
as possible is lost.
– If a VR 90 remote control unit is installed as an acces-
sory, do not obstruct it with furniture, etc., so that it can
measure the circulating room air unhindered.
– Use water sparingly, by taking a shower instead of a bath
or promptly renewing the seals on dripping taps, for
example.
3.5.2 Saving energy by using the control system
correctly
Further savings can be made by the correct use of the con-
trol system on your heat pump.
The heat pump control system helps you to make savings
via:
– The correct selection of the heating flow temperature:
Your heat pump controls the heating flow temperature
depending on the room temperature you have set.
Select, therefore, a target room temperature that is just
sufficient for the comfort of its inhabitants, e.g. 20 °C.
Each degree above this results in the consumption of
around 6% more energy each year (¬ section 4.9.2,
menu 2).
– The correct heating curve for underfloor heating is set
by the heating engineer. For underfloor heating, heating
curves of < 0.4 are used.
– An adequate hot water temperature setting (¬ section
4.11.2, menu 4):
Only heat hot water as much as is required for consump-
tion. Any further heating will result in unnecessary
energy consumption. Hot water temperatures of more
than 60 °C also lead to increased lime sediment. We rec-
ommend that DHW loading be achieved without the
optional external auxiliary heater. By this method, the
maximum hot water temperature is determined by the
16
control pressure lock-out in the heat pump coolant cir-
cuit. This lock-out corresponds to a maximum hot water
temperature of approx. 55 °C.
– The setting of individually adjusted heating times
(¬ section 4.9.4, menu
– Selecting the correct operation mode:
For the times when you are asleep or away, we recom-
mend that you switch the heating to energy-saving mode
(¬ section 4.9.1, menu
– Uniform heating:
By means of a meaningfully constructed heating pro-
gramme, you can arrange for all the rooms in your house
to be uniformly heated in accordance with your pattern
of use.
– Setting the room thermostat:
With the help of a room thermostat or a weather-control-
led controller, you can adapt the room temperature to
your individual requirements and achieve economical
operation of your heating installation.
– The operating times of the circulation pump should be
optimally matched to the actual need (¬ section 4.11.5,
menu 5).
– Consult your skilled trade company. They will adjust your
heating installation to suit your personal requirements.
– You will find further energy-saving tips in ¬ section 4.9
to 4.13. Descriptions of the controller settings and their
energy-saving potential are provided here.
Operating instructions geoTHERM 0020051578_03
5).
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