TJN | TROX Auranor Norge AS

TJN

ACOUSTICALLY AND TECHNICALLY OPTIMISED, FOR INSTALLATION IN WALLS AND ON RECTANGULAR AND CIRCULAR DUCTS, ADJUSTABLE – MADE OF PLASTIC

The new TJN jet nozzle offers improved acoustic properties and is also more energy-efficient

  • Nominal sizes: 160, 200, 250, 315 and 400 mm
  • Volume flow rate range 20 – 1000 l/s or 72 – 3600 m³/h
  • Visible parts made of high-grade polymer in RAL white aluminium or pure white
  • Optimised nozzle contours
  • Discharge angle indication, discharge angle limiting and setting from –30 to +30° on a concealed scale
  • Easy to remove face cover ring with bayonet fixing


Optional equipment and accessories

  • 5 nominal sizes, each with a circular spigot or, as an option, with a connection piece for circular or rectangular ducts
  • Swirl unit with acoustically optimised air control blades with unique saw tooth edges and cap for two-step reduction of the throw distance
  • External electric actuator of compact height
  • Electric actuator allows for integration with the central BMS
  • Internal thermal actuator with shape memory alloy for the self-powered adjustment of the discharge angle
  • All variants also available with outer casing

Application

Application

  • Type TJN jet nozzles for supply air discharge, with a long throw distance
  • For production halls, gymnasiums, theatres and conference rooms as well as for large internal spaces in airports, railway stations and shopping centres
  • Attractive design element for building owners and architects with demanding aesthetic requirements
  • For supply air to room air temperature differences from –12 to +20 K
  • Adjustable discharge angle, from –30 to +30°, for switching between heating and cooling mode
  • For push fitting directly onto circular ducts or as a branch off circular or rectangular ducts

Special characteristics

  • Easy to remove face cover ring with bayonet fixing
  • Swirl unit with acoustically optimised air control blades with unique saw tooth edges and cap for two-step reduction of the throw distance
  • Discharge angle indication, discharge angle limiting and setting from –30 to +30° on a concealed scale
  • Electric or thermal actuator as options

Nominal sizes

  • 160, 200, 250, 315, 400 mm

Description

Variants

Connection

  • For circular ducts (direct connection)
  • K: For rectangular ducts
  • R: For circular ducts


Actuator

  • Manual adjustment
  • E*: Electric actuator
  • T1: Thermal actuator

Parts and characteristics

  • Nozzle with acoustically optimised contours and adjustable discharge angle (from –30 to +30°, in increments of 5°)
  • Flange with position indicator (scale) and adjustable end positions, concealed by a face cover ring
  • Spherical nozzle casing with spigot
  • Outer casing (optional)
  • Connection piece for circular and rectangular ducts (optional)
  • Actuator (optional)

Attachments

  • C: Outer casing

Accessories

  • Swirl unit and cap for throw distance reduction

Useful additions

  • TDC temperature difference control module

Construction features

  • Spigot suitable for circular ducts to EN 1506 or EN 13180
  • Spigot with double lip seal

Materials and surfaces

  • Flange, face cover ring, swirl unit and cap made of ABS plastic, UL 94, V-0, flame retardant
  • Spherical nozzle casing made of galvanised sheet steel
  • Connection pieces for circular or rectangular ducts made of galvanised sheet steel
  • Double lip seal made of rubber
  • Exposed surface is pure white, similar to RAL 9010
  • S1: White aluminium, similar to RAL 9006

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

Functional description

Jet nozzles are the preferred solution wherever the supply air has to travel large distances from the point of discharge to the occupied zone. It is possible to adapt the discharge angle, and consequently the direction of the airflow, to heating or cooling mode. The supply air to room air temperature difference may range from –12 to +20 K.


Cooling mode

Cooling mode is possible with a positive discharge angle of up to 30°. The supply air jet is directed towards the ceiling, but the higher density of cold air results in an increasing deflection of the air jet towards the floor as the distance from the jet nozzle increases. When the supply air jet reaches the occupied zone, both the supply air to room air temperature difference and the airflow velocity have been reduced to comfortable levels.

This principle of operation allows for long throw distances.


Heating mode

Heating mode is possible with a negative discharge angle of –30° or less. The supply air jet is directed towards the occupied zone. Due to the lower density of warm air the jet becomes buoyant. When the supply air jet reaches the occupied zone, both the supply air to room air temperature difference and the airflow velocity should ideally have been reduced.


The discharge angle can be changed manually or with a thermal or electric actuator.

A swirl unit and cap (optional) allow for reducing the throw distance to 65 % or 75 %.

Nominal sizes

160, 200, 250, 315, 400 mm

Volume flow rate range

20 – 1000 l/s or 72 – 3600 m³/h

Adjustable discharge angle

–30 to +30°

Supply air to room air temperature difference

–12 to +20 K

Quick sizing tables provide a good overview of the volume flow rates and corresponding sound power levels and differential pressures.

Exact values for all parameters can be determined with our Easy Product Finder design programme.

Sizing example

Given data

V = 180 l/s (648 m3/h)

Max. sound power level 35 dB(A)

Quick sizing

Type TJN

Nominal sizes: 250, 315

Selected: TJN/250

TJN, sound power level and total differential pressure

Nominal sizeVolume flow rateΔptLWAvL
0.5 m/s1.0 m/s
Nominal sizeVolume flow rateΔptLWAL
l/sm³/hPadB(A)m

160

20

72

9

<15

<5

<5

40

144

34

<15

8

<5

160

60

216

76

15

13

6

80

288

135

26

17

8

200

35

126

9

<15

6

<5

70

252

35

<15

11

6

200

105

378

78

19

17

9

140

504

138

30

23

11

250

55

198

8

7

<5

110

396

33

<15

14

7

250

165

594

75

21

21

11

220

792

132

33

28

14

315

90

324

8

<15

9

<5

185

666

35

<15

18

9

315

265

954

71

24

26

13

360

1296

132

36

>30

18

400

155

558

8

<15

12

6

310

1116

33

<15

24

12

400

465

1674

75

27

>30

18

620

2232

133

38

>30

24

All values apply to discharge angle 0°

L: Throw distance with isothermal operation, no throw distance reduction

Adjustable jet nozzles for the ventilation of large internal spaces such as halls and assembly rooms. Air discharge with long throw distance, excellent acoustic properties. Nozzles tilt from –30 to +30° for horizontal air discharge. Discharge angle indication, discharge angle limiting and setting on a concealed scale.

Consists of a casing for the spherical discharge nozzle, flange, face cover ring and nozzle.

For push fitting directly onto circular ducts or as a branch off circular or rectangular ducts.

Special characteristics

  • Easy to remove face cover ring with bayonet fixing
  • Swirl unit with acoustically optimised air control blades with unique saw tooth edges and cap for two-step reduction of the throw distance
  • Discharge angle indication, discharge angle limiting and setting from –30 to +30° on a concealed scale
  • Electric or thermal actuator as options

Materials and surfaces

  • Flange, face cover ring, swirl unit and cap made of ABS plastic, UL 94, V-0, flame retardant
  • Spherical nozzle casing made of galvanised sheet steel
  • Connection pieces for circular or rectangular ducts made of galvanised sheet steel
  • Double lip seal made of rubber
  • Exposed surface is pure white, similar to RAL 9010
  • S1: White aluminium, similar to RAL 9006

Technical data

  • Nominal sizes: 160, 200, 250, 315, 400 mm
  • Volume flow rate range: 20 to 1000 l/s or 72 to 3600 m³/h
  • Adjustable discharge angle: –30 to +30°
  • Supply air to room air temperature difference: –12 to +20 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.


00117260_0.

 Type
TJN       Adjustable jet nozzle

Connection piece
       No entry: none
K       For rectangular ducts
R       For circular ducts (saddle connector), specify duct diameter under

 Actuator
No entry: manual adjustment
E7       230 V AC, 3-point
E8       24 V AC/DC, 3-point
E9       24 V AC/DC, modulating 2 – 10 V DC
T1       Thermal actuator

 Nominal size [mm]
160
200
250
315
400

 

Circular duct diameter [mm]
Specify only for variant -R
315       Only for nominal size 160
500       Only up to nominal size 315
630
800

 Attachments
       No entry: none
C       Outer casing

 Accessories
       No entry: none
D       Swirl unit and cap for throw distance reduction

 Exposed surface
No entry: RAL 9010, pure white
S1       Similar to RAL 9006, white aluminium

Order example: TJN-K-E9/250/C/D/S1

Type

TJN

Connection piece

For rectangular ducts

Actuator

Modulating, 2 – 10 V DC, 24 V AC

Nominal size

250 mm

Attachments

Outer casing

Accessories

Swirl unit and cap for throw distance reduction

Exposed surface

White aluminium, similar to RAL 9006


Order example: TJN-R-T1/250-500/D

Type

TJN

Connection piece

For circular ducts

Actuator

Thermal actuator

Nominal size

250 mm

Circular duct diameter

500 mm

Accessories

Swirl unit and cap for throw distance reduction

Exposed surface

Pure white, similar to RAL 9010


Downloads

product information

certificates

operation manuals

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