Skip to content

Product / JSC

Halton Jaz JSC – Nozzle diffuser

Halton Jaz JSC is the perfect choice for several different applications ranging from workplaces to hospitals, thanks to its high mixing effect.
This square nozzle diffuser is available with three different front plate models, each with a different amount of nozzles and designed for specific airflow requirements.
The diffuser is suitable for installation in e.g. office and hospital rooms, educational facilities and public spaces

  • Adjustable nozzles
  • Adjusting and measuring with balancing plenum Halton Pop PDI

The Halton Jaz diffuser family is designed in accordance with the core values of Halton to meet the following requirements:

  • Sustainable production with reduced waste and production close to markets
  • Excellent performance in terms of airflow range and flexibility
  • Comfortable indoor environmental conditions through silent operation
Request a Quote

Overview

Halton Jaz JSC is the perfect choice for several different applications ranging from workplaces to hospitals, thanks to its high mixing effect. This square diffuser is available with three different front plate models, each with a different amount of nozzles and designed for specific airflow requirements.

Application area

  • Ventilation in offices, hospital rooms, schools, and public spaces

Key features

  • Adjustable nozzles
  • Silent function also with large airflows
  • Adjusting and measuring with Halton Pop PDI balancing plenum
  • Ceiling adapters available for different ceiling types

Operating principle


Fig. 1. Operating principle of Halton Jaz JSC

Air is supplied into the space through the nozzles of the front panel. The two-channel design of the nozzles allows silent operation and high induction rate.

The throw pattern of the diffuser can be adjusted by turning nozzles to the desired direction. By default, the nozzle pattern is 4-directional. Other often used patterns are 3-, 2-, 1 ways, but the custom patterns are also possible thanks to the individually adjustable nozzles. The direction of the supply air jet has no effect on the noise level, pressure drop or airflow rate.

The recommended maximum temperature difference between the supply and room air is 10 °C.

Key technical data

Feature Description
Airflow rate Max. airflow rate 162 l/s or 580 m3/h, <35 dB
Dimensions 595 x 595 mm or 420×420 mm
Weight 2.0 – 4.4 kg
Adjustability Individually adjustable nozzles

Features and options

Catergory Feature
(order code)
Option
(order code)
Description
Diffuser Duct connection size
(D)
125, 160, 200, 250 or 315 Five nominal duct connections sizes. Units are in millimetres.
Diffuser size
(A)
420 420x420x50 mm. Available with duct connection sizes 125, 160 or 200.
600 595x595x70 mm. Available with all duct connection sizes.
Balancing plenum PDI
(subproduct*)
Model
(M)
S With supply airflow adjustment and measurement module MSM
E With exhaust airflow adjustment module MEM
N Without airflow adjustment module
Sizes D Plenum’s duct connection size. It can be either the same or one size bigger than diffusers duct connection.
E Diffuser connection size. Must be the same size than diffusers duct connection size.
Sound attenuation material (AT) P With polyester attenuation material
W With mineral wool attenuation material
NA Without attenuation material
Ceiling adapter CA for 420×420 diffusers
(accessory*)
Model (M) S1 Standard 595×595 mm
Ecophon Focus A, Rockfon A
H1 Hidden grid
Ecophon Focus DS, Rockfon X
P1 Partly hidden grid
Ecophon Focus Dg, Rockfon X
C1 Clip-in
Dampa clip-in, square edge
R1 Recessed
Ecophon Focus F, Rockfon E, T24

* Orderd separately

Quick selection

Values with adjustment module (MSM) fully open.


Fig. 2. Quick selection with unit l/s

 


Fig. 3. Quick selection with unit m3/h

Structure and materials

No. Part Description Note
1 Front panel Polyester-painted steel, white (RAL 9003) Special colours available
2 Nozzles Plastic, polyacetal (POM) Colour alternatives:
white, black and grey
3 Front panel springs Stainless steel
4 Duct seal gasket Polymer
5 Spigot Galvanised steel
6 Casing Polyester-painted steel, white (RAL 9003) Special colours available

Dimensions and weight

Fig. 4. Dimensions of Halton Jaz JSC diffuser, 600×600 mm (left) and 420×420 mm (right)

JSC ØD [mm] Number of nozzles Weight [kg]
125-420 125 16 2.0
160-420 159 36 2.1
200-420 199 36 2.2
125-600 124 16 4.4
160-600 159 36 4.4
200-600 199 36 4.0
250-600 249 64 4.1
315-600 314 64 4.2

Halton Jaz JSC with Halton Pop PDI plenum


Fig. 5. Halton Jaz JSC with Halton Pop PDI plenum, externally positioned connection spigot


Fig. 6. Halton Jaz JSC with Halton Pop PDI plenum, internally positioned connection spigot

JSC W
[mm]
PDI ØD
[mm]
ØD1
[mm]
L
[mm]
W1
[mm]
H
[mm]
H1
[mm]
L1
[mm]
Weight
[kg]
125-420 420 100-125 99 127 308 282 172 50 168 4.7
420 125-125 124 127 308 282 172 50 168 4.8
160-420 420 125-160 125 162 308 282 172 50 168 4.8
420 160-160 159 162 458 358 239 50 280 7.1
200-420 420 160-200 159 202 458 358 239 50 280 7.1
420 200-200 199 202 458 358 239 50 280 7.2
125-600 595 100-125 99 127 308 282 172 70 168 7.1
595 125-125 124 127 308 282 172 70 168 7.2
160-600 595 125-160 124 162 308 282 172 70 168 7.1
595 160-160 159 162 458 358 239 70 280 9.4
200-600 595 160-200 159 202 458 359 239 70 280 8.9
595 200-200 199 202 458 359 239 70 280 9.0
250-600 595 200-250 199 252 458 359 239 70 280 9.0
595 250-250 249 252 520 480 359 70 280 12.3
315-600 595 250-315 249 317 520 480 359 70 280 12.2
595 315-315 314 317 520 480 359 70 280 12.4

Specification

Square nozzle diffuser for false ceiling installation, fulfilling the following requirements:

Structure

  • Front panel openable and removable to allow general maintenance and cleaning.
  • Front panel removable without special tools.
  • Four directional air distribution.
  • Individually adjustable nozzles to change air distribution upon need.
  • Two-slot nozzle design to ensure efficient air mixing and silent operation.
  • Unit sizes:
    • 595×595 mm, height 70 mm
    • 420×420 mm, height 50 mm
  • Inlet duct diameter 125, 160, 200, 250 or 315 mm.

Materials

  • Casing and front panel manufactured from steel.
  • Casing and front panel white, powder painted in RAL 9003, 30 % gloss.
  • Connection spigot manufactured from galvanized steel.
  • Connection spigot equipped with a fixed gasket.

Model with balancing plenum

  • Diffuser to be connected with a galvanised steel plenum Halton Pop PDI.
  • Plenum has an integrated gasket to ensure airtight duct connection.
  • Plenum has a removable adjustment module MSM for supply or MEM for exhaust.

Packaging and identification

  • The product is protected by a removable plastic coating.
  • The product is packed in a cardboard box.
  • The product is identified by labels attached both to the product and the cardboard box.

Installation


Fig. 7. Halton Jaz JSC connected to a Halton Pop PDI plenum

The diffuser is connected usually to balancing plenum Halton Pop PDI (Fig. 7.). Alternatively, it can be connected direct to the duct by riveting or screwing. In that case, minimum safety distance to the next T-branch or curve is three times the duct diameter (3xD).


Fig. 8. Halton Jaz JSC, 420 with 595×595 mm ceiling adapter (CA) 

Commissioning


Fig. 9. Adjustment of airflow of diffuser and plenum combination

Airflow control

The diffuser itself has no airflow adjustment. To adjust and measure the supply airflow rate, the diffuser shall be combined with Halton Pop PDI balancing plenum with measurement and adjustment module MSM. In case of exhaust air, use of adjustment module MEM is recommended. It is not possible to measure exhaust airflow rate with adjustment module MEM.

Open the front plate and pass the tubes and control spindle through the front panel (Fig. 9.). Replace the front panel. Measure the differential pressure with a manometer. The flow rate is calculated using the formula below:

where

  • qv           Airflow rate [l/s] or [m3/h]
  • ∆pm      Measured pressure [Pa]
  • k            The k factor given as a function of mounting and diameter (see the table below)

Adjust the airflow rate by rotating the control spindle until the desired airflow rate (pressure difference) is achieved.

Set the tubes and spindle back into the plenum. Damper position can be locked with a knurled head screw of the adjuster.

Duct connection (PDI) k  factor for MSM adjuster, opening > 0, [l/s]
> 8D Min. 3D
100 5.7 7.5
125 9.6 12.6
160 16.4 21.9
200 26.3 31.0
250 47.1 51.5
315 78.8

 

Duct connection (PDI) k  factor for MSM adjuster, opening > 0, [m3/h]
> 8D Min. 3D
100 20.6 27.0
125 34.4 45.4
160 59.0 78.8
200 94.8 111.6
250 169.5 185.4
315 283.6

Maintenance

Detach the front panel of the diffuser and let it balance on the hinges. If needed, each nozzle can be easily removed by pressing the stoppers and then pushing the nozzle through the front panel.

Wipe the diffuser casing, nozzles and front panel with a damp cloth.

The nozzles are replaced into the front panel by pushing. After cleaning, reattach the front panel.

Option with balancing plenum

Remove the measurement and adjustment module by gently pulling from the shaft; not from the control spindle or measurement tubes.

Wipe the components with damp cloth instead of immersing in water. Also wipe the inner part of the plenum; detach the attenuation material, if needed.

Reassemble the module by pushing the shaft until the unit meets the stopper.

After cleaning, reattach the front panel.

Order code

JSC-D-A; CO-ZT

Main options
D = Diffuser connection size [mm] 125, 160, 200, 250, 315
A = Diffuser size [mm] 420, 600
Other options and accessories
CO = Colour
SW Signal white (RAL 9003)
X Special colour (RAL xxxx)
ZT = Tailored product
N No
Y Yes (ETO)
Sub product (ordered separately)
Halton Pop PDI Balancing plenum
CA Ceiling adapter for different ceiling types, for size JSC-420

Order code example

JSC-125-420; CO=SW, ZT=N

Downloads

  • Halton Jaz JSC – Nozzle diffuser

    Data

    en

    Shape 2
  • Halton Jaz JSC – Suutinhajottaja

    Data

    fi

    Shape 2
  • Halton Jaz JSC – Spridare med dysa

    Data

    se

    Shape 2
  • Halton Jaz JSC – Fiche technique

    Data

    Français (fr)
    Shape 2
  • Halton Jaz JSC – Technical description

    Data

    English (en)
    Shape 2
  • Installation instruction – Halton Jaz JMC, JSC, JRC, JWC – Universal

    Data

    English (en)
    Shape 2
  • Halton Supply Air Diffusers brochure

    Data

    English (en)
    Shape 2
  • Halton ceiling adapters for Halton Jaz JRC and JSC diffusers

    Data

    English (en)
    Shape 2
  • Halton tuloilmahajottajat – esite

    Data

    Suomi (fi)
    Shape 2
  • Halton Kattosovittimet Halton Jaz JSC/JRC -hajottajille

    Data

    Suomi (fi)
    Shape 2
  • Halton Tilluftsspridare broschyr

    Data

    Swedish (sv)
    Shape 2
  • Undertaksadaptrar för Halton Jaz JSC och JRC

    Data

    Swedish (sv)
    Shape 2
Contact Us
  • Hidden
  • Max. file size: 64 MB.