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5.1.3 Cooker hood function
The cooker hood function balances the air flows when the
cooker hood is used. This will help to prevent house nega-
tive pressure and improves fume extraction capability. The
ventilation boost level during the function can be defined.
The function starts automatically when the damper in a
Swegon CASA cooker hood is opened or when a cooker
hood defined IO is active.
The balancing is applied with increasing the supply air
flow. If cooker hood is connected to separate extract
duct and roof fan is selected the balancing is first de-
creasing the extract air flow and increasing the supply
air flow if needed.
Commissioning and settings for the cooker hood function
is described in Basic commissioning section.
5.1.4 Central vacuum function
The central vacuum function balances the air flows
when the a central vacuum cleaner is used. This will
help to prevent house negative pressure and improves
the cleaning result. The function can be started by ex-
ternal switch connected to input configured as the CVC.
The function will then be activated automatically when
the central vacuum is on.
The function can also be started from a Smart control
panel, the function runs until the set time has elapsed
(Run time).
The function's settings can be adjusted from the Settings/
(1234)/Smart Functions/Central vacuum function menu.
Central vacuum function
Run time
Compensation
The function's balancing level can be adjusted with
the Compensation setting (max 50 %). The balancing
is applied with first decreasing the extract air flow and
increasing the supply air flow if needed.
5.1.5 Fireplace function
The fireplace function helps lighting the fire and en-
sures that no excess under pressure is generated. The
function can be started from Smart shortcuts menu or
by external switch connected to input configured as the
fireplace function (IO-control).
Problems caused by too little draught in a 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 help the situation by giving a temporary positive pres-
sure in the home when the fireplace is lighted.
After the lighting phase the function prevents the excess
under pressure formation. The function Run time can be
changed from the settings (max. 60 min). The function
can be stopped from the control panel.
30 min
20%
2020-11-12
R9-H | R15-H Smart
The function's settings can be adjusted from the
Settings/Smart Functions/Fireplace function menu.
Fireplace function
Run time
Speed difference
The function's maximum level can be adjusted with the
Speed difference setting (max 25 %). The function is
applied by demand with first decreasing the extract air
flow and increasing the supply air flow if needed.
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 forming of ice in the ventilation unit.
5.1.6 Automatic Home/Away/Boost function
The function is available only on models equipped with
a CO
sensor. The function controls the ventilation
2
steplessly between away and boost levels by demand.
When the unit is controlled to away mode temperature
setpoint can be decreased to save even more energy.
The function should always be adjusted to ensure opti-
mal performance.
The function can be activated and adjusted from the
Settings/(1234)/Smart Functions/Home/Away/Automatic
Boost menu or from Smart shortcuts menu.
Auto Home/Away/Boost
In use
A+ now
Home limit
Away limit
The function is adjusted by defining the CO
Home and Away. When measured CO
tween these values the air flow is controlled accordingly
between Away and Home. If CO
limit the air flow is boosted lineary and if CO
below Away limit the Away mode is activated.
A suitable Home limit value can be defined by reading
the measured CO
level (A
2
a planned number of people are in the house. Similarly
the Away limit value can be defined by reading the
measured CO
level (A
now) from the menu when a
+
2
house is empty and the CO
The ventilation can be raised when people are at home
by decreasing the Home limit. The away mode can be
activated earlier by increasing the Away limit.
NOTE! The function is only visible if the CO
been detected.
NOTE! Measured CO
value depends on the ventilation
2
system but the function is calibrated with the limits.
All rights to changes reserved.
15 min
15 %
750 ppm
700 ppm
500 ppm
limits for
2
value is be-
2
value is above Home
2
value is
2
now) from the menu when
+
level is settled.
2
sensor has
2
17
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