TROX Round Aluminium Air Diffusers Owner’s Manual

TROX Round Aluminium Air Diffusers

Product Information

Specifications

• Product Name : FBA-3
• Construction : Round aluminum air diffusers for installation in floors
• Nominal Sizes : 150, 200
• Variants : FBA-3--SM, FBA-4--KF, FBA-1-VF
• Optional Equipment and Accessories: Swirl unit, trim ring with
• Material : spring clip fixing, dirt trap, plenum box
  • Grille insert and trim ring: Die-cast aluminum
  • Spring clips : Stainless steel
  • Swirl unit and dirt trap : ABS plastic (UL94-V-0)
  • Spacing ring: Plastic ABS (UL94-V-0)
  • Dirt trap adjustment device and connective material : Galvanized steel
  • Plenum box : Galvanized sheet steel
• spring clip fixing, dirt trap, plenum box

Product Usage Instructions

Installation

To install the FBA-3, follow these steps:

1. Prepare the installation opening in the floor according to the desired size.
2. If using a trim ring with spring clip fixing (FBA-4-*-KF variant), attach it to cover the installation opening. The spring clip fixing allows for compensation of large cut-out tolerances.
3. If using a dirt trap, adjust it on the back of the diffuser for volume flow rate balancing. The dirt trap can also serve as a reduction element.
4. If using a swirl unit, adjust it at the back of the diffuser for manual adjustment between vertical and horizontal air routing.
5. If using a plenum box (FBA-1-VF variant), connect it to the on-site air duct system for steady airflow to the floor diffuser.

Parts and Characteristics

The FBA-3 includes the following parts and characteristics:

• Grille insert: Made of die-cast aluminum, it covers the installation opening and can be held in place by a spacing ring (for variants without trim ring) or a trim ring with spring clip fixing.
• Floor diffuser: Constructed with a deburred diffuser core, it provides a smooth surface and can be painted black for a sleek look.
• Height-adjustable dirt trap: This serves as a reduction element for volume flow rate balancing and is made of ABS plastic.
• Adjustable swirl unit: Allows for manual adjustment between vertical and horizontal swirling air flow or air routing.
• Trim ring with spring clip fixing: Covers the installation opening and compensates for large cut-out tolerances. It is secured with spring clips made of stainless steel.

Attachments

The FBA-3 can be equipped with the following attachments:

• Spacing ring: Used to hold the grille insert in variants without a trim ring.
• Trim ring with spring clip fixing: Accommodates the grille insert and attaches to the installation opening.
• Swirl unit: Available in adjustable or fixed options for vertical or horizontal airflow.
• Height-adjustable dirt trap: Serves as a reduction element for volume flow rate balancing and can be adjusted from the diffuser face front.

Optional Equipment and Accessories

The FBA-3 can be used with the following optional equipment and accessories:

• Swirl unit: Allows for adjustment of the airflow direction between vertical and horizontal.
• Trim ring with spring clip fixing: This covers the installation opening and ensures a tight fit. Recommended for minimum installation dimensions.
• Dirt trap : This can be used as a reduction element and is adjustable on the back or from the diffuser face front.
• Plenum box : Connects the FBA-3 to the on-site air duct system for efficient airflow.

FAQ

Q: What are the different variants of the FBA-3?

A: The FBA-3 is available in three variants: FBA-3--SM, FBA-4--KF, and FBA-1-VF. Each variant offers different features and options for installation and airflow direction.

Q: Can the dirt trap be adjusted?

A : Yes, the dirt trap on the FBA-3 can be adjusted either on the back of the diffuser or from the diffuser face front. It can also serve as a reduction element for volume flow rate balancing.

Q: What material is the FBA-3 made of?

A : The grille insert and trim ring are made of die-cast aluminum, spring clips are made of stainless steel, swirl units, and dirt traps are made of ABS plastic (UL94-V-0), spacing rings are made of plastic ABS (UL94-V-0), and the plenum box is made of galvanized sheet steel.

Models

DIFFUSERS FOR INSTALLATION

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 airflow 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

Application

• 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 centered in combination with a trim ring With or without a 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 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 an 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 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 centering 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

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

• The grille insert and trim ring are made of die-cast aluminum
• 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 galvanized steel
• Plenum box made of galvanized 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

• WELKOM - BIENVENUE | S.A. TROX Belgium/TROX Belgium N.V.
• Floor diffusers | S.A. TROX Belgium/TROX Belgium N.V.
• Contact | S.A. TROX Belgium/TROX Belgium N.V.
• FBA | S.A. TROX Belgium/TROX Belgium N.V.
• GENERAL PURCHASING CONDITIONS  | S.A. TROX Belgium/TROX Belgium N.V.
• Products | S.A. TROX Belgium/TROX Belgium N.V.
• Delivery and payment terms TROX GmbH | S.A. TROX Belgium/TROX Belgium N.V.
• Disclaimer | S.A. TROX Belgium/TROX Belgium N.V.
• Imprint | S.A. TROX Belgium/TROX Belgium N.V.
• OUR DATA PROTECTION POLICY | S.A. TROX Belgium/TROX Belgium N.V.

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>