Strebel S-CBX 105, Руководство по установке, эксплуатации и техническому обслуживанию

Страница: 39 / 138

39
9.9 Pipe heights and mutual distances on a flat roof
Height A
This is the height of the air inlet. A rain hood should prevent rainwater
entering the air supply system.
When the air inlet and outlet are mounted on a flat roof, the inlet should be
at least 600mm above the roof service and at least 300mm above the
maximum snow level.
Example 1:
When the maximum snow level on the roof surface is 450mm then the
air inlet should be at 450mm + 300mm = 750mm. As 750mm is more
than the minimum 600mm, the required height will be 750mm.
Example 2:
If the maximum snow level on the roof surface is 150mm, then the air
inlet would be at 150+300 = 450mm. This 450 mm is less than the
minimum 600 mm, so the height should be 600 mm.
Height difference B
This is the distance between the flue outlet and the air inlet.
The flue gas outlet should be at least 700 mm above the air inlet. It is
advised to apply a conical outlet.
If no air inlet is used on the roof, the flue outlet should be
situated at least 1000 mm above the roof surface.
Distance C
The horizontal mutual distance at roof level.
This distance should be at least 700 mm.