CDH-B Rectangular wall air intake/exhaust ventilator for general ventilation

Description

CDH-B are ventilators with actuator-operated or manually adjustable movable louvres used for air intake or exhaust in general ventilation systems.

Design

CDH-B ventilators are fitted with actuator-operated or manually adjustable movable louvres.

The louvres are made of anodised aluminium profiles and an insert mounted between profiles and secured with a glazing gasket. In the S version, the louvre insert is made of a multichamber polycarbonate plate (colour – clear) with thickness of 20 mm. In the A version, the louvre insert is made of 20 mm thick mineral wool with fibreglass on the inside and aluminium sheet on the outside. The frame is made of coated
aluminium (in RAL 9006 mat colour as standard).

Louvre Control

The CDH-B louvres can be controlled manually or by means of an electric actuator. Manual control – in this version, the louvres are positioned by means of a lever, which is locked in the desired position. Electrical control – in this version, the CDH and CDH– B louvres are controlled by means of an electric actuator (Belimo), open/close type, with a return spring, 24 V AC/DC or a 230 V AC power supply.

Connection diagram, power supply and control parameters depend on the type of electric actuator and control – see data sheet of the specific actuator