Type EF

Grille cores made of aluminium, with fixed horizontal blades

Grille cores with special profiled blades

  • Nominal sizes 245 × 95 – 1245 × 445 mm
  • Volume flow rate range 10 – 1235 l/s or 36 – 4446 m³/h
  • Grille core made of aluminium with anodised finish
  • Straight (0°) or angled (15°) air discharge

EF-0/845×245 00132332_0


  • Application
  • Description

Application

  • Ventilation grille cores of Type EF as supply air or extract air variant for comfort zones and industrial zones
  • Directed supply air discharge for mixed flow ventilation
  • Blades for straight (0°) or angled (15°) air discharge to meet different local requirements
  • For variable and constant volume flows
  • For supply air to room air temperature differences from –12 to +4 K
  • For covering all types of openings

Special characteristics

  • Fixed blades
  • 0° or 15° air discharge
  • Blade pitch 12.5 mm or 16.7 mm

Nominal sizes

  • Nominal length: 245, 345, 445, 545, 645, 845, 1045, 1245 mm
  • Nominal height: 95, 145, 245, 345, 445 mm


Other dimensions upon request

Variants

  • Blade pitch 12.5 mm
  • G: Blade pitch 16.7 mm


Blade construction style

  • 0: 0° discharge
  • 15: 15° discharge

Parts and characteristics

  • Fixed horizontal blades
  • Two lateral mullions
  • Vertical centre mullion (depending on length)

Construction features

  • Transverse bars for clip-fixing the grille (bars snap into clips)

Materials and surfaces

  • Blades made of aluminium
  • Anodised blades, E6-C-0, natural colour
  • P1: Blades powder-coated, RAL CLASSIC colour

Standards and guidelines

  • Sound power level of the air-regenerated noise measured according to EN ISO 5135

Maintenance

  • Maintenance-free as construction and materials are not subject to wear
  • Inspection and cleaning to VDI 6022

Technical information

Function, Technical data, Quick sizing, Specification text, Order code

  • Function
  • Technical data
  • Quick sizing
  • Specification text
  • Order code

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

245 × 95 to 1245 × 445 mm

Minimum volume flow rate

10 – 410 l/s or 36 – 1476 m³/h

Maximum volume flow rate, with LWA max. 40 dB(A) without attachments

55 – 1235 l/s or 198 – 4446 m³/h

Supply air to room air temperature difference

–12 to +4 K

Volume flow rates apply to supply air


EF, geometric free area

H L [mm]
H 245 345 445 545 645 845 1045 1245
H Ageo
mm

95

0.015

0.021

0.028

0.034

0.040

0.052

0.064

0.076

145

0.022

0.031

0.040

0.049

0.058

0.075

0.093

0.111

245

 

0.050

0.065

0.080

0.094

0.121

0.151

0.180

345

 

 

0.090

0.110

0.130

0.168

0.208

0.249

445

 

 

 

 

0.166

0.215

0.266

0.318


EF-G, geometric free area

H L [mm]
H 245 345 445 545 645 845 1045 1245
H Ageo
mm

95

0.018

0.025

0.033

0.040

0.047

0.061

0.076

0.090

145

0.026

0.037

0.047

0.058

0.069

0.089

0.110

0.131

245

 

0.060

0.077

0.095

0.112

0.145

0.179

0.214

345

 

 

0.107

0.131

0.155

0.201

0.249

0.297

445

 

 

 

 

0.198

0.256

0.318

0.379


EF, volume flow rate ranges 00246689_0

× LWA = 40 dB(A) with unrestricted airflow+ LWA = 40 dB(A) with airflow restricted by 50 %

Ventilation grille cores, rectangular, made of aluminium, for supply and extract air.

Ready-to-install component which consists of fixed horizontal blades, two lateral mullions, and possibly a vertical centre mullion (depending on length).

Preferably for installation into an installation subframe provided by others.

Sound power level of the air-regenerated noise measured according to EN ISO 5135.

Special characteristics

  • Fixed blades
  • 0° or 15° air discharge
  • Blade pitch 12.5 mm or 16.7 mm

Materials and surfaces

  • Blades made of aluminium
  • Anodised blades, E6-C-0, natural colour
  • P1: Blades powder-coated, RAL CLASSIC colour

Technical data

  • Nominal sizes: 245 × 95 to 1245 × 445 mm
  • Minimum volume flow rate (supply air): 10 – 410 l/s or 36 – 1476 m³/h
  • Maximum volume flow rate (supply air), at LWA max. 40 dB(A) without attachments: 55 – 1235 l/s or 198 – 4446 m³/h
  • Supply air to room air temperature difference: –12 to +4 K

Sizing data

  • V _______________________ [m³/h]
  • Δpt _______________________ [Pa]

Air-regenerated noise

  • LWA _______________________ [dB(A)]

This specification text describes the general properties of the product. Texts for variants can be generated with our Easy Product Finder design programme.

00135458_0

 Type
EF       Grille core

 Blade pitch
       No entry: 12.5 mm
G       16.7 mm

 Blade construction style
0       0° blades (straight)
15       15° blades (angled)

 

 Nominal size [mm]
       L × H

 Exposed surface
       No entry: anodised, E6-C-0, natural colour
P1       Powder-coated, specify RAL CLASSIC colour

       Gloss level
       RAL 9010 50 %
       RAL 9006 30 %
       All other RAL colours 70 %

Order example: EF-G-0/645×245

Blade pitch

16.7 mm

Blade construction style

Nominal size

645 × 245 mm

Exposed surface

Anodised, E6-C-0, natural colour


 

Dimensions and weight, Product details

  • Dimensions and weight
  • Product details

The weight table shows the available nominal sizes

EF

H L [mm]
H 245 345 445 545 645 845 1045 1245
H m
mm kg

95

0.3

0.5

0.6

0.7

0.9

1.2

1.4

1.7

145

0.5

0.7

1.0

1.2

1.4

1.8

2.3

2.7

245

0.9

1.3

1.7

2.0

2.4

3.1

3.9

4.6

345

1.3

1.8

2.4

2.9

3.4

4.5

5.5

6.6

445

1.7

2.4

3.1

3.7

4.4

5.8

7.2

8.5


EF-G

H L [mm]
H 245 345 445 545 645 845 1045 1245
H m
mm kg

95

0.2

0.3

0.4

0.5

0.6

0.8

1.0

1.2

145

0.4

0.5

0.7

0.9

1.0

1.3

1.6

2.0

245

0.7

0.9

1.2

1.5

1.8

2.3

2.9

3.4

345

1.0

1.4

1.7

2.1

2.5

3.3

4.1

4.9

445

1.2

1.8

2.3

2.8

3.3

4.3

5.3

6.3


Installation details, Basic information and nomenclature

  • Installation details
  • Basic information and nomenclature

Installation and commissioning

  • Installation and fixing preferably in installation subframes (subframes to be provided by others)

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)

References

Berggasthof Platzlalm

  • PROJECT
  • OUR JOB
  • SOLUTION

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

Thank you for your message!

Visual contact Visual contact

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.: +49 (0)2845 / 202-0 | Fax: +49 (0)2845/202-265