enervent Svea eAir - Commissioning; Requirements; Commissioning Check List; Adjusting Air Flow

27Installation instructions for professionals
COMMISSIONING
Requirements
Functioning requirements of the ventilation unit:
• Supply and extract air temperature less than +55°C.
• Return water temperature at least +8°C.
• Supply air temperature after heat recovery over +5°C.
• Supply air temperature over +10°C.
• All foreign objects have been removed from the
ventilation system.
• Both fans are operating.
Adjusting air ow
When the unit has been startedup, the air ows must be
congured to designed values.
• Air ows are adjusted when commissioning the
ventilation unit.
• The settings are set separately for both fans in each
operating mode (= fan speed).
• Verify after air ow adjustment that there is
underpressure at the extract air fan suction chamber
relative to the supply air after heat recovery chamber.
Check the following when setting up:
• All lters are clean.
• All supply and extract air valves, the exhaust air
cowling, and the outdoor air louvre are in place.
In order to get optimal fan speed settings, the air ows
must be measured in each duct-opening. A suitable
instrument is a thermal anemometer or a dierential
pressure instrument. With these measurements, the
air ow can be adjusted to follow the planned values.
A correctly congured ventilation unit is silent and has
good heat economy. Additionally, it maintains a slight
underpressure in the house. Underpressure prevents
humidity from getting inside the walls and ceiling.
Action Reviewed Notes
The unit is installed according to the installation instructions
provided by the manufacturer.
A condensation water drain pipe is attached to a water trap and
its functionality has been tested.
Silencers have been installed in the supply air and extract air
ducts.
The air valves are connected to the ductwork.
An outdoor louvre has been installed for fresh air intake.
NOTE Do not cover the louvre with mosquito netting. It makes
cleaning dicult.
The unit is connected to an appropriate electrical supply.
Ventilation ducts are insulated according to the ventilation plan.
Any external sensors and electrical connections are installed.
All airows are set according to the ventilation planning. Verify
that the extract air fan suction chamber has underpressure relative
to the supply air after heat recovery chamber.
Commissioning check list
Do not cover the outdoor louvre with
mosquito netting.
FOR INFORMATION