Air flow measuring tubes
Air flow measuring tubes are placed in the ventilation ducts in accordance with the instructions. The standard air flow from the cooker hood is measured past the damper. The fan curves indicate the total pressure accounted for by duct losses.
R model in the figure. In the L model, the parts are mirrored.
Air flow measurement points - description of the diagram
| A | Supply air | D | Supply air fan |
| B | Extract air | E | Extract air fan |
| C | Removing the cooker hood |