TROX FBA-3 Circular Round Shape Aluminum Instructions

TROX FBA-3 Circular Round Shape Aluminum

MODELS

Installation conditions and several options

FBA

ROUND ALUMINIUM AIR DIFFUSERS FOR INSTALLATION IN FLOORS

The different attachments allow a wide range of applications with different air flows, installation conditions and several options for volume flow balancing.

• Nominal sizes: 150, 200 mm
• Volume flow range 1 – 59 l/s or 4 – 213 m³/h
• Annular diffuser contour with different surface structures
• For constant and variable volume flows
• For all types of raised floors
• Horizontal or vertical air flow
• Reduction element adjustable on the front or rear side
• Can be installed with and without trim ring
• The trim ring allows quick and easy installation and removal of the grille inserts for cleaning purposes
• High mechanical strength/breaking resistance > 17 kN
• Ideal for comfort zones

Optional equipment and accessories

• Swirl unit adjustable at the back for manual adjustment between vertical and horizontal air routing
• Trim ring with spring clip fixing to cover the installation opening
• Dirt trap can also be used as a reduction element
• Plenum box

General Information

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 features

• 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’s front and back surface

Nominal sizes

• 150, 200

Variants
Setting the airflow direction

• *: no entry: vertical airflow, 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 an adjustable dirt trap on the back, the dirt trap can also serve as a reduction element for volume flow rate balancing
• SV: with adjustable 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 a 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 overtightened

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 magnitudes 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. carpet works 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 airflow
• Fixed swirl unit for vertical airflow (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

• The 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 material 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

References

• TROX UK - Industry leading manufacturers and suppliers of superior quality air conditioning, ventilation, fire and smoke protection systems, components and controls | TROX UK Ltd
• CONTACT | TROX UK Ltd
• Disclaimer | TROX UK Ltd
• Imprint | TROX UK Ltd
• OUR PRIVACY POLICY | TROX UK Ltd
• TROX UK's Terms and Conditions of Sale | TROX UK Ltd

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