Calibration Of Airflow - Dantherm HCH 5 MKII Manual

INSTALLATION & SERVICE MANUAL FOR PROFESSIONALS
Installation: Calibration of airflow

Calibration of airflow

Introduction 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.
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Pour 0.5 L water into the siphon to prevent leakage from the drain prior to calibration.
NOTE
Calibration During the initial part of the calibration process, the total (main) airflow must be measured
on the external duct system with suitable equipment and simultaneously adjusted to target
process
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 airflow for respective rooms has been achieved.
Please be aware of the following:
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NOTE •
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The required airflow for each room has to be in accordance with national ventilation
standards and/or building regulations.
Major valve adjustments may greatly affect the main flow and therefore the main flows
need to be checked and if necessary adjusted. It is of crucial importance for stabile opera-
tion to ensure that the final total extract airflow achieved under the calibration is at least
5% higher than the achieved total supply airflow in order to create conditions for mass
balance in the system as a whole.
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