External Louvres - Variant WG-JZ

Description:

• Maximum width of 2000 mm, maximum height of 1995 mm
• Low differential pressure due to aerofoil blades
• Low air-regenerated noise
• All aerodynamic data is measured in aerodynamics and acoustics laboratories
• Aerofoil parallel or opposed hollow blades
• Casing air leakage to EN 1751, class C
• Available in standard sizes and many intermediate sizes
• Pre-assembled combination, hence fast and easy to install

Optional equipment and accessories

• Installation subframe
• Insect screen
• Powder-coated or anodised surface
• Actuators: Open/Close actuators, modulating actuators

Application

• Combinations of Type WG external weather louvres and Type JZ multileaf dampers for protecting fresh air and exhaust air openings in air conditioning systems
• Protection against the direct ingress of rain as well as against leaves and birds
• Recommended face velocity for fresh air openings: 2 – 2.5 m/s max.
• As an acting element in the volume flow and pressure control
• For shutting off ducts and openings in walls
• Parallel action blades are preferably used for opening/closing
• Opposed action blades are due to their characteristics preferably used for variable operation

Special characteristics

• Any intermediate sizes within the standard size range are available
• Low installation effort on site since external weather louvre and multileaf damper are factory combined and assembled
• Aerofoil parallel or opposed hollow blades
• Operating temperature –20 – 100 °C
• For very large sizes, several combinations can be arranged side by side or on top of each other
• Low-maintenance, robust construction
• Low differential pressure and low noise due to aerofoil blades

Nominal sizes

• B: 200 – 2000 mm, in increments of 1 mm
• H: 180, 345, 510, 675, 840, 1005, 1170, 1335, 1500, 1665, 1830, 1995 mm (intermediate sizes 183 – 1998 in increments of 1 mm, except for standard size H – 1 mm, H + 1 mm, H + 2 mm)
• Any combination of B × H