TRS-A/825×225
myTROX
Ventilation grille with droplet shaped blades
Optional equipment and accessories
Application
Special characteristics
Nominal sizes
Other dimensions upon request
Variants
Fixing
Parts and characteristics
Attachments
Accessories
Construction features
Materials and surfaces
Standards and guidelines
Maintenance
Functional description
Ventilation grilles are air terminal devices for the supply air and extract air of ventilation and air conditioning systems. They direct the supply air into the room. Ventilation grilles with adjustable blades allow for adapting the discharge direction to the local conditions. The result is a mixed flow ventilation in comfort zones and industrial zones, with good overall room ventilation.
Induction slows the airflow down, i.e. the airflow velocity decreases as the distance from the grille increases. The distance at which the airflow velocity reaches a certain defined value, e.g. 0.2 m/s, is called throw distance. The supply air jet from wall grilles that are installed near the ceiling achieves a larger throw distance than a free jet (from a grille that is not installed near the ceiling). Single grilles, groups of grilles and continuous horizontal runs all achieve different throw distances.
In cooling mode it is necessary to take account of the jet deviation towards the occupied zone, which increases as the supply air to room air temperature difference increases and the discharge velocity decreases. In heating mode the supply air jet deviates towards the ceiling. This has no negative effect on the airflow velocity in the occupied zone, but it may affect the complete ventilation of the room.
Nominal sizes | 225 × 75 to 1225 × 325 mm |
Minimum volume flow rate | 11 – 410 l/s or 40 – 1476 m³/h |
Maximum volume flow rate, with LWA max. 40 dB(A) without attachments | 62 – 1305 l/s or 223 – 4698 m³/h |
Supply air to room air temperature difference | –12 to +4 K |
Volume flow rates apply to supply air
Geometric free area
75 | 0.007 | 0.011 | 0.015 | 0.018 | 0.022 | 0.029 | 0.036 | 0.043 |
125 | 0.015 | 0.022 | 0.030 | 0.037 | 0.044 | 0.059 | 0.074 | 0.089 |
225 | 0.030 | 0.045 | 0.060 | 0.075 | 0.090 | 0.119 | 0.149 | 0.179 |
325 |
| 0.068 | 0.090 | 0.113 | 0.135 | 0.180 | 0.225 | 0.269 |
Effective air discharge area (supply air)
75 | 0.007 | 0.011 | 0.014 | 0.018 | 0.021 | 0.029 | 0.036 | 0.043 |
125 | 0.014 | 0.021 | 0.029 | 0.036 | 0.043 | 0.057 | 0.072 | 0.086 |
225 | 0.029 | 0.043 | 0.057 | 0.072 | 0.086 | 0.114 | 0.142 | 0.172 |
325 | 0.064 | 0.086 | 0.108 | 0.129 | 0.172 | 0.214 | 0.256 | |
Effective area of extract air grille
75 | 0.006 | 0.009 | 0.011 | 0.014 | 0.016 | 0.022 | 0.028 | 0.033 |
125 | 0.011 | 0.016 | 0.022 | 0.028 | 0.033 | 0.044 | 0.055 | 0.066 |
225 | 0.033 | 0.044 | 0.055 | 0.066 | 0.090 | 0.110 | 0.134 | |
325 | 0.066 | 0.083 | 0.100 | 0.134 | 0.170 | 0.200 | ||
× LWA = 40 dB(A) with unrestricted airflow+ LWA = 40 dB(A) with airflow restricted by 50 %
Ventilation grilles, rectangular, made of sheet steel, for supply and extract air. Aesthetic sloped border with chamfered inside edge Preferably for wall and sill installation but also suitable for rectangular ducts.
Ready-to-install component which consists of a border and individually adjustable, vertical blades.
Concealed screw fixing or countersunk holes, for installation into an installation subframe or fixing onto an installation surface.
Sound power level of the air-regenerated noise measured according to EN ISO 5135.
Special characteristics
Materials and surfaces
Technical data
Sizing data
Air-regenerated noise
This specification text describes the general properties of the product. Texts for variants can be generated with our Easy Product Finder design programme.
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Order example: TRS-DG/825×225/A1/C11
Attachments | Damper unit with opposed action blades and air direction control |
Nominal size | 825 × 225 mm |
Installation subframe | With |
Fixing | Concealed screw fixing |
Exposed surface | Powder-coated RAL 9010, pure white |
Order example: TRS-EF/825×225
Attachments | None |
Nominal size | 825 × 225 mm |
Exposed surface | Powder-coated RAL 9010, pure white |
The weight table shows the available nominal sizes
TRS
75 | 0.4 | 0.5 | 0.7 | 0.8 | 0.9 | 1.2 | 1.5 | 1.8 |
125 | 0.5 | 0.7 | 0.8 | 1.0 | 1.2 | 1.6 | 1.9 | 2.3 |
225 | 0.7 | 1.0 | 1.2 | 1.5 | 1.8 | 2.3 | 2.8 | 3.3 |
325 | 1.3 | 1.6 | 2.0 | 2.3 | 3.0 | 3.7 | 4.4 | |
Weights apply to ventilation grilles without attachments
Installation and commissioning
These are only schematic diagrams to illustrate installation details.
Attachments -AG, -DG and Types AGW, DGW
Volume flow rate balancing
When several ventilation grilles are installed on the same duct, it may be necessary to balance the volume flow rates.
Air pattern
Principal dimensions
L [mm]
Nominal length of the ventilation grille
H [mm]
Nominal height of the ventilation grille
m [kg]
Weight
Nomenclature
LWA [dB(A)]
Sound power level of the air-regenerated noise
V [m³/h] and [l/s]
Volume flow rate
Δpt [Pa]
Total differential pressure
lS [m]
Distance from single grille or horizontal run section (throw distance)
Hochzillertal – Berggasthof Platzlalm
An air of luxury. There is no reason why a cosy mountain inn should not be every bit as comfortable as a 5-star hotel.
Berggasthof Platzlalm can be found right in the popular ski resort Hochfügen, Hochzillertal, near the alpine road Zillertaler Höhenstrasse. The chalet offers 30 sleeping possibilities, a great sun deck and, for ultimate relaxation: a sauna – all at an altitude of approx. 1,800 metres.
Its blend of traditional and modern design creates a pleasant, welcoming atmosphere. It is a place where you simply feel good.
TROX components ensure a comfortable indoor climate
TROX components ensure a comfortable indoor climate. Products from the air handling expert, such as swirl diffusers, grilles, disc valves, fire dampers and volume flow controllers, were installed in the mountain inn, for example, in the bar lounge and in the dining and sitting room. Naturally, the installation had to comply with technical requirements for air handling and noise, but the visible technological elements also had to match the overall visual appearance of the rooms and lounges, characterised by beautiful old wood. The grilles from TROX were perfect for the job.
TROX products in the Hochfügen ski resort
Thanks to the installed components from TROX, guests will be comfortable in the inn no matter the temperature outside. Furthermore, the tried and tested fire dampers ensure a high degree of safety. TROX products create an excellent indoor climate and pleasant atmosphere – even in winter and at 1,800 metres!
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Contact
We are here for you
Please specify your message and type of request.
Tel.: +43 1 250 43-0 | Fax: +43 1 250 43 34
Contact
Thank you for your message!
Your message is send and will be processed shortly.
Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +43 1 250 43-0| Fax: +43 1 250 43 34
Type
Attachments
Nominal size [mm]
Installation subframe
Fixing
Exposed surface
