Vaillant VA 10-020 MXNHI User Manual - page 20
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Split Murales User Manual
EN
8 Indicators of the indoor unit
Fig. 8.1 Overview of the display in the indoor unit.
Legend
1 Operation mode display
2 Ambient temp.display
Displays the set temperature for a few seconds, then returns to
ambient temperature
3 TIMER ON
4 SLEEP
5 TIMER OFF
6 HEALTH
9 Advice for saving Energy
9.1
Suitable ambient Temperature
Set the ambient temperature to an appropriate value to
guarantee physical wellbeing, comfort and, in any case,
to comply with the legal standard. Each degree above
this value significantly increases the energetic
consumption.
The temperature must also be suitable for the specific
use being made of the room: the temperature of empty
rooms and bedrooms does not have to be the same as
the main room.
9.2
Eliminating Heat or Cold Sources
In the event that there are any heat (in cooling mode) or
cold (in heating mode) sources that could be eliminated
please do so (e.g. a window or a door which are not
properly closed). This will ensure that the unit consumes
less energy.
9.3
Operation in Heating Mode (Heat Pump)
Your unit, when operating in heating mode, acts as a
heat pump, i.e. it takes heat from the outside (via the
outdoor unit) and releases it inside (via the indoor unit).
Nevertheless, a conventional heating system produces
heat purely by consuming energy. Therefore, heating a
room using a heat pump is far more economic that using
conventional heating (radiators, heaters, boilers, etc.).
9.4
Ambient Temperature when absent
During heating mode, an economic saving is made by
keeping the ambient temperature at approx. 5ºC lower
than the normal temperature. A reduction which exceeds
these 5º C does not provide any further energy savings
since greater heating power is required for consecutive
periods of operation in normal operating conditions.
It is only worth reducing the temperature even further in
the event of prolonged absences, e.g. during holidays.
During winter protection against freezing must be
guaranteed.
9.5
Uniform Heating
Often in a house only the one room is heated. In addition
to the surfaces which delimit this area, i.e. the walls,
doors, windows, ceiling and floor, the adjacent rooms are
also heated uncontrollably: thermal energy is
unintentionally lost. It is therefore impossible to
adequately heat the room and an unpleasant feeling of
cold is felt (the same occurs when leaving open doors
which separate heated areas and unheated areas in a
limited way).
This is false economy: the heating is on and,
nevertheless, the ambient temperature is not pleasant.
Greater comfort and a more reasonable operating mode
are gained by heating all the rooms in a house uniformly,
taking into account the use being made of each room
(the temperature of empty rooms and bedrooms does
not have to be the same as the main room).
9.6
Reduction in Consumption during Night Hours
(SLEEP Function)
Your unit has a SLEEP function which allows the
temperature to be modified automatically in relation to
the predetermined values (in heating mode the
temperature decreases slightly; in cooling mode the
temperature increases slightly) during nighttime hours.
Thus, apart from greater comfort being provided there is
also a reduction in electric consumption. For more
details regarding the SLEEP function, please consult
section 7.7.1).
9.7
Reduction in Consumption with programmed
Operating Time (TIMER Function)
By using the TIMER function you can adjust the
operation start time of your unit. Therefore, it is possible
to programme the operation of your unit to make it
function only when required and thus achieve economic
operation.
9.8
Appropriate Maintenance of the Unit
A unit in perfect condition operates efficiently, taking
maximum advantage of the energy it consumes. Ensure
that your unit is correctly serviced (for more details
please consult section 10). In particular, make sure that
the filters are kept clean and that the air inlets and
outlets are not obstructed either on the indoor or
outdoor unit.
Indicators of the indoor unit 8
Advice for saving Energy 9