Version: 1.3
Date: 31.03.2022
Page 4 z 11
Operation and Maintenance Manual
CDH-F
CDH-F-L design (for Zodic-M System only)
CDH-F-L louvre can be used in smoke extraction systems as a wall smoke exhaust device with the possibility of
measuring the mass flow of air removed by the extraction louvre. This product is dedicated to staircases, elevator
shafts, wherever we want to know the mass flow of air being removed.
Figure 2
–
CDH-F-L design.
Figure 2
–
CDH-F-Lz design.
Tab. 1
–
CDH-F-L and CDH-F-Lz description.
Lp.
Description
1 CDH-F louvre
2 Telescopic duct section KT
3 Measuring strips
4 Panel with cable glands (two glands for actuator cables, two glands for copper tubes)
5 Protective mesh ST-STS4 with a perforated steel sheet with Hv20 hexagonal holes
6
The
differential pressure transmitter is connected to the measurement strips with Ø6mm
copper tubes and is placed in a safe space, or is encased in mineral wool with a thickness of
30mm and a density of not less than 60 kg/m
3
or equivalent.
