Air diffuser LDU 30/.../U

Overview
Highly inductive linear floor diffusers designed for comfortable, draught-free ventilation, heating and cooling of offices and commercial spaces.

Types

• Type LDU 30/…/S: Slot diffuser with lateral connection spigot
• Type LDU 30/…/U: Slot diffuser with air connection from below
• Type LDU 30/…/-: Slot diffuser without separate air connection for pressurized floors

Key benefits

• Efficient, quiet air distribution — highly effective ventilation without drafts
• Energy performance — reduces thermal impact on glazed façades
• Uniform aesthetic — slim linear design for demanding interior requirements
• Simple installation — suitable for raised and cavity floors
• Easy maintenance — removable dirt trap and air distribution plates for cleaning

Technical data (excerpt)
Data referenced for sound pressure level LpA = 35 dB(A): pa_luftmenge - m³/h BG 800 - 85 | BG 1000 - 100
Number of slot rows: 1
Integrated silencer: Standard
Air connection incl. throttle: Standard
Feet: Height-adjustable (Standard)

Characteristics
Air connection from below (applies to the U version).

Variations (excerpt)

• BG 800 - 85 m³/h | 1 slot row | Integrated silencer: Standard | Air connection incl. throttle: Standard | Feet: Height-adjustable (Standard)
• BG 800 - 75, 120 m³/h | 1 or 2 slot rows | Integrated silencer: Standard | Air connection incl. throttle: Standard | Feet: —
• BG 800 - 85 m³/h | 1 slot row | Integrated silencer: — | Air connection incl. throttle: — | Feet: —

Further information
Side views, air duct arrangements (not to scale, dimensions in mm) and product illustrations are provided to support selection and installation.

Technical specifications

• Series: LDU
• Slot width: 30 mm
• Number of slot rows: 1 (single-row) or 2 (other LDU variants)
• Air connection options: lateral (S), from below (U), or without separate connection for pressurized floors (‑)
• Typical rated air volumes: BG 800 ≈ 75–85 m³/h, BG 1000 ≈ 80–140 m³/h (depending on variant)
• Integrated silencer: Standard for specified variants
• Air connection including throttle: Standard
• Feet: Height-adjustable (Standard)
• Maintenance: Removable dirt trap and removable air distribution plates for easy cleaning