Version: 1.3
Date: 31.03.2022
Page 3 z 11
Operation and Maintenance Manual
CDH-F
1.
INTRODUCTION
The purpose of this Operation and Maintenance Manual is to familiarize the user with the intended use, design,
operating principle, installation and operation of the product.
2.
INTENDED USE
CDH-F louvres are used for smoke and heat extraction in natural and mechanical smoke extraction systems.
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.
3.
TECHNICAL DESCRIPTION
CDH-F louvres are positioned by means of an electric actuator. The lamellas are made of anodised aluminum profiles
and an insert mounted between profiles and secured with glazing gasket. In the S version the lamella insert is made of
a 20 mm thick multi polycarbonate sheets. In the A version the lamella insert is made of 20 mm thick mineral wool
with glass fleece inside and anodised sheet outside.
The exhaust louvers frame is made of aluminum and powder coated in the RAL9006 matt color.
CDH-F electrical control
–
the lamellas of the exhaust
louvres are controlled by means of an electric actuator of
Belimo, open/close type, with a return spring, 24 V AC/DC
or 230 V AC power supply.
If an actuator with a return spring is in use, a power
loss will open the louvre.
The wiring diagram, power supply and control parameters
depend on the type of the electric actuator and control
system
–
see the data sheet of the selected actuator.
Figure 1
–
CDH-F louvre.
