Vaillant 0020236294, Operating Instructions Manual

Page: 15 / 28

Operating and display functions 5
0020262548_00 Operating instructions
15
5.2.18 Resetting to default setting
You can reset the settings for the Time programmes or for
Everything to the default setting.
Menu
→
Basic settings
→
Default setting
→
Time pro-
grammes
–
With Time programmes , you reset all the settings you
have made in the Time programmes function to the
default setting. All other settings that include times, such
as
Date/time , are not affected.
While the system control is resetting the time programme
settings to the default settings,
In progress is shown on the
display. The basic display is then shown on the display.
Caution.
Risk of a malfunction.
The Default setting Everything function
restores all settings to the default settings,
including those set by the competent person.
It may be the case that it is no longer possible
to operate the heating installation after this.
▶
Arrange for the competent person to reset
all settings to factory settings.
Menu
→
Basic settings
→
Default setting
→
Everything
–
While the system control is restoring the factory settings,
Reset to default setting In progress is shown in the
display. The installation assistant is then shown in the
display; it must only be operated by a competent person.
5.2.19 Installer level
The Installer level is reserved for the competent person and
is therefore protected by an access code. At this level, the
competent person can implement the required settings.
5.3 Operating modes
The operating modes can be activated directly from any
operating mode using the right-hand selection button
Op.
mode . If the heating installation is equipped with more than
one zone, the activated operating mode only applies for the
zone that was preset by the competent person.
If more than one zone is activated, you can set a separate
operating mode for each zone using the left-hand selection
button
Menu
→
Basic settings .
The path details given at the start of each operating mode
description indicate how you reach this operating mode in
the menu structure.
5.3.1 Setting the Heating operating mode
Op. mode
→
Heating
Menu
→
Basic settings
→
Operating mode
→
ZONE1
→
Heating
–
You can use this function to specify how the heating in-
stallation should operate during heating.
off : The zone is switched off in this operating mode and the
frost protection function is activated.
Auto : The operating mode brings the zone to the desired
temperature set for Day temp. heating in the time periods
that you have set in the time programme.
Outside these time periods, the system control regulates the
control behaviour set by the competent person.
–
Eco The heating function is switched off and the system
control monitors the outdoor temperature. If the outdoor
temperature falls below 3 °C, the system control switches
the heating function on after the end of the frost protec-
tion delay time and brings the room temperature to the
set desired temperature
Set-back temp. heat. . Despite
the heating function being activated, the burner is only
active on demand. If the outdoor temperature rises above
4 °C, the system control switches the heating function off,
but continues to monitor the outdoor temperature.
–
Set-back : The heating function is switched on and the
system control brings the room temperature to the set
desired temperature
Set-back temp. heat. .
Day : The operating mode brings the zone to the desired
temperature Day temp. heating , regardless of the time peri-
ods that you have set in the time programme.
Set-back : The operating mode brings the zone to the de-
sired temperature Set-back temp. heat. , regardless of the
time periods that you have set in the time programme.
5.3.2 Setting the Cooling operating mode
Op. mode
→
Cooling
Menu
→
Basic settings
→
Operating mode
→
ZONE1
→
Cooling
–
You can use this function to specify how the heating in-
stallation should operate during cooling.
off : The zone is switched off in this operating mode.
Auto : The operating mode brings the zone to the desired
temperature Day temp. cooling in the time periods that you
have set in the time programme. Outside these time periods,
the
Cooling function is switched off.
Day : The operating mode brings the zone to the desired
temperature set for Day temp. cooling , regardless of the
time periods that you have set in the time programme.
5.3.3 Setting the Ventilation operating mode
The operating instructions for the ventilation unit explain how
the ventilation unit works with the ventilation levels.
Op. mode
→
Ventilation
–
You can use this function to define how the ventilation
unit operates during ventilation.
Auto : The operating mode controls the air exchange via
the set ventilation level Max. vent. stage: Day in the set
time periods that you have defined in the time programme.
The set ventilation level
Max. vent. stge: Night is effective
outside of the time periods.
If air-quality sensors are connected to the ventilation unit, the
ventilation unit varies the ventilation levels:
–
If the air quality is good, the ventilation unit works at a
lower ventilation level than the one that is set.
–
If the air quality is poor, the ventilation unit works at a
higher ventilation level. However, the ventilation unit can-
not exceed the
Max. vent. stage: Day and Max. vent.
stge: Night ventilation levels that are set.