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6.4.6 Air venting valve
The unit is fitted with an air venting valve to automatically remove air that has built up in the
circuit, preventing undesirable effects such as premature corrosion and wear, lower performance
and low exchange output.
The device also features a safety function because, in the event of exchanger breakdown, it allows
the refrigerant gas to escape outside, preventing it fro being conveyed to the internal terminals.
The valve can be kept in a closed position by closing the plug on the drain; by loosening the plug,
the valve remains in
open position and air is vented automatically.
In the event of observing a water leak, it is mandatory to replace the component, by loosening it with a wrench, as
pictured below.
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