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1 .
C o m m i s s i o n i n g
This chapter contains instructions on how to commission the MultiPlexBox.
4.1 Conditions for commissioning
Please ensure that the following conditions are met before attempting to commission the unit:
•
The ventilation unit is set to constant air volume and calculated total air volume.
For this purpose, follow the information in the operating instructions provided with your ventilation.
system.
The ventilation level of the ventilation unit must not be changed during
commissioning.
•
Ensure your duct network is ready by:
Checking the ventilation pipe network in the building is fully installed, all inspection openings are
closed and the duct network meets the hygiene and cleanliness requirements as recommended. A
contaminated duct network can lead to ventilation component malfunctions!
•
The MultiPlexBox is connected to the mains power supply. The MultiPlexBox requires an external
power supply.
•
All valves are mounted and completely open.
•
Ventilation airflow calculations are prepared for the connected unit and building.
•
All ventilation components are freely accessible.
•
In your possession must be a laptop with a free USB A port and USB cable (A to B) and an installed
copy of the MultiPlexBox software package. A laptop/tablet with USB A output or corresponding
adapter is required for the commissioning. One USB A to B cable is also required (recommended
length min. 2m, depends on installation situation).
4.2 Adjustment and Measurement
1. Check in advance that all the conditions for commissioning are met
2. Set the volume flows in the different ventilation levels (see section 3.2.2)
3. Select the desired ventilation level you would like to adjust to (see section 3.2.2)
4. Wait until the system is stable before beginning measurement of airflows. (At least 15 minutes)
5. Measure and add up the volume flows of all supply and extract air valves in the selected operating
level.
6. Calculate the difference from the measured volume flows to the entered setpoints (setpoint-actual =
difference).
7. Enter the values (positive or negative) for supply and extract air below the measured level under
“Adjust”.
8. Wait until the system has stabilised and repeat the measurement. (in case of further deviation, add
the deviation value to the set value, allow time to stabilise and repeat the measurement, if
necessary).
9. Then set the respective calculated air volumes at the valves.
