Advertisement
the regulation of the other duct is calculated in relation
to the set values.
Select commissioning mode.
The operating mode's pressure setting values are shown
on the menu Airflow adjustments. Value -1 Pa is shown
if the pressure is still not adjusted. The pressures can be
adjusted in the desired sequence.
Once commissioning mode is selected you make the
pressure adjustments from the setting screen that opens
when you select the row for the desired operating
mode.
52%
Home (supply)
45 Pa
Select the pressure setting using the +/- buttons. Wait
until the required pressure is reached and the screen
shows the
-symbol.
54%
Home (supply)
45 Pa
NOTE! The fan's regulated output and the measured
pressure are shown on the top row of the setting
screen. If the selected value is too large in relation to
the duct system, the set point for the fan increases to
one hundred per cent and the increased pressure is not
reached. You should then reduce the setting value or
change the duct system's pressure loss.
NOTE! Home mode's pressure cannot be set lower than
Away mode's pressure setting, and not higher than
Boost mode's pressure setting.
Swegon reserves the right to make changes.
44 Pa
45 Pa
6. Use and function
When the constant duct pressure function has been set
for all operating modes, the ventilation unit can be con-
trolled as usual according to the instructions for use and
all functions are available. Regulation of the constant
duct pressure maintains the duct's pressure at the set-
ting value, and for example, a dirty filter does not effect
the air volumes.
The constant duct pressure function can be studied
from the diagnostics menu Main menu/Settings/(1234)/
Diagnostics/Fan speeds. The fan's set point values are
shown in the menu and the measured speed as well
as the duct pressure's setting value and measurement
values.
Pressure adjustment alarm
If the pressure regulation system malfunctions and the
duct pressure can no longer be maintained at the set-
ting value, the situation is indicated as a fan fault for
the current regulation. The ventilation unit switches to
the normal regulation mode in the event of a fault.
Rectify the fault by resetting the ventilation unit or e.g.
by repairing the faulty sensor. Restart the unit so you
can acknowledge the fault.
7. Service
Disconnect the voltage supply to the ventilation unit
before starting any service measures.
Check the pressure measuring tube and tapping in
conjunction with servicing the ventilation unit. Clean as
needed.
www.swegonhomesolutions.com
PTH.191017
3
Advertisement
