FBA

Application

• Floor diffusers as supply air diffusers for comfort areas
• Installation in raised floors without plenum box if it is constructed as a pressurised floor
• Installation in raised floors with plenum box to allow individual ventilation in rooms or zones
• Vertical supply air flow, with adjustable swirl unit also horizontal air flow
• Variants with adjustable swirl units can be manually set to vertical or horizontal air routing
• Attractive design element with various types of surfaces, for building owners and architects with demanding aesthetic requirements
• Comfortable and energy-efficient airflow through supporting convection currents in the occupied zone
• Thermal loads are effectively dissipated
• For constant and variable volume flows
• For supply air temperature differences of –12 - +20 K

Special characteristics

• Simple and quick assembly and covering of the installation opening when used with trim ring and spring clip fixing
• Installation in hard flooring requires a spacing ring The spacing ring is included in the delivery if no trim ring has been selected
• High crush resistance > 17 kN
• The grille insert is torsion-proof and centred in combination with trim ring
• With or without swirl unit to allow for various air patterns
• A dirt trap reduces contamination of the floor and facilitates volume flow rate balancing. It can be adjusted from the diffuser front and back surface

Nominal sizes

• 150, 200

Variants

Setting the air flow direction

• -*: no entry: vertical air flow, inalterable
• -V: preset vertical swirling airflow, the swirl vane is manually adjustable
• -H: preset horizontal swirling airflow, the swirl vane is manually adjustable

Installation

• -*-: Floor diffuser with spacing ring
• -KF: Floor diffuser with trim ring and spring clip fixing

Dirt trap

• -*: no entry: without dirt trap
• -SM: with adjustable dirt trap Dirt trap adjustable on the back, the dirt trap can also serve as a reduction element for volume flow rate balancing
• -SV: with adjustable dirt trap Dirt trap adjustable from the diffuser face front, the dirt trap can also serve as a reduction element for volume flow rate balancing

Plenum box

• -*: no entry: without plenum box
• -A: with plenum box for connection to the on-site air duct system

Construction

Surface floor diffuser (floor grille and trim ring)

• -1: Deburred diffuser core
• -3: Deburred diffuser core, painted black, exposed surface overtightened
• -4: Deburred diffuser core, exposed surface overtigthened

Parts and characteristics

Grille insert Floor diffuser

• Ring spacing: 6 mm
• Height-adjustable dirt trap which serves as a reduction element for volume flow rate balancing
• Adjustable swirl unit for vertical or horizontal swirling air flow or air routing

Trim ring with spring clip fixing

• Rotation lock and centring grille insert
• Covers the installation opening
• Spring clip fixing enables different magnitude of the raised floor and the compensation of large cut-out tolerances when creating the installation openings. For the tightest possible fit of the trim ring, we recommend the minimum installation dimension
• Balancing with soft flooring, e.g. carpetWorks well with soft flooring, e.g. carpet

Attachments

• Spacing ring to hold the grille insert for variants without trim ring
• Trim ring with spring clip fixing to accommodate the grille insert and to attach the installation opening
• Adjustable swirl unit for vertical or horizontal swirling air flow
• Fixed swirl unit for vertical air flow (only for nominal size 200)
• Height-adjustable dirt trap which also serves as a reduction element for volume flow rate balancing

Accessories

Plenum box -A:

• For direct connection to the on-site air duct system
• With incorporated air distribution element for a steady flow to the floor diffuser
• Plenum box suitable for all nominal sizes

Material

• Grille insert and trim ring made of die-cast aluminium
• Spring clips made of stainless steel
• Adjustable swirl unit and dirt trap made of ABS plastic, UL94-V-0
• Spacing ring made of plastic ABS UL 94-V-0
• Dirt trap adjustment device and connective marterial made of galvanised steel
• Plenum box made of galvanised sheet steel

Technical data

• Nominal sizes: 150, 200 mm
• Volume flow rate range: 1 – 59 l/s or 4 – 213 m³/h
• Supply air temperature difference: -12 - +20 K
• Crush resistance > 17 kN