S&P BA-AF Instructions De Montage Et D'utilisation page 10

We recommend use of components essential for the correct operation of the installation,
as detailed in the section below:
to maintain good water circulation.
pressure switches to signal an alarm and cut the power to the equipment, etc.)
the equipment can be isolated if necessary (filter cleaning, repairs, replacements, etc.)
without the need to drain the entire circuit.
mission of vibrations which might lead to rupture of the banks of exchangers due to
excess stresses within the circuits
Drainage system
It is essential that a siphon be installed with a height difference in excess of the available
pressure in mmWC supplied by the fan, to facilitate the draining of the condensate tray.
The draining system must be inclined at a minimum of 2%.
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