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COMMISSIONING OF THE VENTILATION SYSTEM
Pre-commissioning should be carried out in accordance with the local norms and standards.
Purpose of commissioning and setting
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Ensuring microclimate conditions in accordance with the local construction and sanitary norms and regulations.
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Total air flow adjustment.
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Supply and exhaust air flow balancing.
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Ensuring the necessary minimum of air exchange in separate rooms.
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General check
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Only ventilation components made by Vents were used for installation.
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Mounting is completed and the facility is ready to be put into operation.
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Supply grilles and/or disk valves are in place.
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Disk valves, grilles, and the other valves are opened as much as possible for providing minimum resistance.
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A ventilation unit has project documentation and a user's manual.
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A representative of an installation company is present at commissioning and adjustment.
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Access is provided to all the necessary ventilation system components (a ventilation unit, supply and exhaust ventilation
elements).
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The unit was not in operation during construction.
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The unit bypass is closed.
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Total supply and exhaust air flow regulation
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Necessary equipment:
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differential pressure switch
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measuring tubes, 2 pcs.
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pressure outlets, 4 pcs.
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drill with a Ø 7.5 mm drill bit for metal, if necessary.
Total supply and exhaust air flow is regulated as follows:
1. Install the pressure outlets into the air ducts at the distance of 10-15 cm from all the unit spigots (supply, extract, exhaust, intake)
and secure them.
2. Connect the differential pressure switch to the pressure outlets, which are located near the intake and supply spigots. Determine
pressure difference between them.
3. Determine the supply air flow by means of the diagram of dependence of the unit performance from pressure.
If necessary, change the speed of the supply fan and redo measuring.
4. Connect the differential pressure switches to the pressure outlets, which are located near the extract and exhaust spigots.
Determine pressure difference between them.
5. Determine the extract air flow by means of the diagram of dependence of the unit performance from pressure.
6. If necessary, change the speed of the exhaust fan and redo measuring.
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