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INSTALLATION & SERVICE MANUAL FOR PROFESSIONALS
Installation: Calibration of airow
Calibration of airow
In order to achieve the correct comfort level, as well as to control humidity levels, it is import-
ant to adjust the amount of supply air entering the house, as well as the exhaust air from the
house.
This is done by adjusting the fan speed level in a nominal mode corresponding to level 3.
Pour 0.5 L water into the siphon to prevent leakage from the drain prior to calibration.
During the initial part of the calibration process, the total (main) airow must be measured
on the external duct system with suitable equipment and simultaneously adjusted to target
value by using either PCTool or control panel.
In the main and vital part of the calibration, the valves in all rooms have to be adjusted until
the required airow for respective rooms has been achieved.
Please be aware of the following:
• The required airow for each room has to be in accordance with national ventilation
standards and/or building regulations.
• Major valve adjustments may greatly aect the main ow and therefore the main ows
need to be checked and if necessary adjusted. It is of crucial importance for stabile opera-
tion to ensure that the nal total extract airow achieved under the calibration is at least
5% higher than the achieved total supply airow in order to create conditions for mass
balance in the system as a whole.
Introduction
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NOTE
Calibration
process
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