enervent Svea eAir - Page 33

33Installation instructions for professionals
6 Analog input 1 %RH sensor1 Dene the functionality and set the voltage for
the analog inputs 1-6 on the eAir motherboard.
AI settings needs to be congured if there are
external sensors connected to the ventilation unit,
besides the two RH% and CO₂ sensors that are
precongured.
Select identication for the input
Set the sensor lowest output voltage
Set the sensor highest output voltage
Set the corresponding measurement value for the
lowest output voltage
Set the corresponding measurement value for the
highest output voltage
Analog input 2 %RH sensor 2
Analog input 3 None
Analog input 4 None
Analog input 5 CO2 sensor 1
Analog input 6 CO2 sensor 2
7 Constant duct pres-
sure control
OFF Options are ON/OFF.
Air ow setup mode Constant pressure Selecting Constant pressure requires all fan power
settings to be entered as duct pressures, and the
automation will automatically maintain the duct
pressure by varying the fan speeds. Select this set-
ting if you know the required duct pressures for the
dierent operating modes.
Selecting Constant speed will allow the airow
measurements to be made without the duct pres-
sure control. The measured duct pressures are
shown under the fan speed settings for reference,
and are automatically stored when continuing to
the next setting. After completing all fan speed
settings the constant duct pressure control is auto-
matically activated, and fan speed control will be
automatic according to duct pressures. Use this
setting if you don’t know the needed duct pressures
for the dierent operating modes.
P-band 25 P-band value determines how much the fan speed
will be altered.
I-time 5 s I-time value determines how quick the change to
the fan speed will be.
DZ 2 Pa DZ (dead zone) is the deviation in the set duct pressure
where the controller has no eect on the fan speed.
Alarm delay for
supply air duct
pressure
200 s If pressure deviation is greater than the set alarm
limit, an alarm will be triggered after the delay set
here.
Alarm delay for
extract air duct
pressure
200 s If pressure deviation is greater than the set alarm
limit, an alarm will be triggered after the delay set
here.
Alarm limit 10 Pa An alarm is triggered if pressure deviation is greater
than the alarm limit set here.