15
W5
Smart
All rights to changes reserved.
2020-11-19
The function’s settings can be adjusted from the
Settings/Smart Functions/Fireplace function
menu.
Fireplace function
Run time
Speed difference
20%
60 min
Selectable settings for the fireplace function are the
function for the desired operating time (max. 60 min)
and the desired difference in fan speed (max. 50 %). If
problems occur with the chimney draught when lighting
the fire, the percentage value can be increased slightly
from the default value.
Use of the fireplace function repeatedly in extreme cold
can cause freezing in the ventilation unit.
3.3.6 Automatic Home/Away/Boost system
The function is available only on models equipped with a car-
bon dioxide sensor. The automatic control system controls
the ventilation strength variably according to the carbon
dioxide level in the home.
This function should always be set in conjunction with
commissioning.
The function can be activated and set from the
Settings/
Smart Functions/Home/Away/Automatic Boost
menu.
NOTE! The function is only visible if the sensor has been
detected.
Auto Home/Away/Boost
Mode
A+ now
Home limit
Away limit
750 ppm
900 ppm
600 ppm
In use
The settings menu shows the value
“A
+
now”
the
current level of carbon dioxide. The function is set by
defining the limits values Home and Away. A suitable
Home limit value
can be determined by reading the
“A
+
now”
value from the menu when a normal number
of people are in the home. Similarly you can determine
the
Away limit value
by reading the
“A
+
now”
value
when the property has been empty for several hours.
3.3.7 Automatic humidity system
The function is available only on models equipped with
a humidity sensor. The function is put into service from
the ”Smart-functions” menu. The function boosts the
ventilation variably based on the moisture load caused
by people, for example, increased moisture load in the
home due to showering. If the home’s moisture level (RH)
remains above 60 % for a long period, we recommend
that the ventilation is boosted and that a check is made of
the moisture source.
The function can be activated and set from the
Settings/
Smart Functions/Auto RH control
menu.
Compensation (home).
Set the Home mode’s com-
pensation value so that the air flows are kept as set out
in the ventilation plan.
Compensation (boost).
Fine tune Boost mode’s com-
pensation value if necessary.
Cooker hood boost.
Adjust the function’s boost speed
(supply air %), for example, to achieve sufficient dis-
charge velocity or odour extraction.
Choose
Roof fan
when using a cooker hood whose
extract air does not pass through the ventilation unit.
Compensation is now achieved by slowing the extract
air fan and the cooker hood only controls the roof fan.
Also see the section “Commissioning external equipment”.
When the outdoor air is very cold, you can lower the
supply air fan’s speed so that the supply air temperature
does not drop too much.
3.3.4 Central vacuum function
The central vacuum function helps to balance the
ventilation when using a central vacuum cleaner, which
prevents excessive negative pressure and improves the
cleaning result. A switching signal can be connected
to the ventilation unit’s signal input (IO-control) so that
the function is activated automatically when the central
vacuum is started.
The function can also be started from a Smart control pan-
el, the function then runs until the set time has elapsed.
The function’s settings can be adjusted from the
Settings/Smart Functions/Central vacuum boost
menu.
Central vacuum function
Run time
Compensation
20%
0 min
The “Operating time” setting is used to state how
long a function started from Smart functions should be
enabled (maximum 120 minutes). You can adjust the
function's effectiveness using the compensation setting
(max 50 %).
3.3.5 Fireplace function
The smart fireplace function facilitates lighting the fire
and ensures clean combustion. Problems caused by too
little draught in an open fireplace usually occur in the
autumn, when the temperature difference between the
indoor and outdoor air is slight and the chimney is cold.
The Fireplace function attempts to give a temporary
positive pressure in the home when the fireplace is lit,
without changing the fan speeds. After the first phase
passes the fireplace function switches to maintenance
mode and compensates the need of combustion air. The
function can be cancelled from the control panel.
The function can be started from Smart functions or by
enabling the I/O input intended for the fireplace func-
tion (IO-control). The function runs for the set time and
can also be stopped from a Smart control panel.
