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Halton Jaz JDB – Diffuser with side slot

Halton’ s Jaz series of diffusers combine excellent performance with iconic design . The aerodynamic construction is silent in operation and efficient to buy as smaller diffuser sizes  can be utilized. The diffusers are available for both supply and exhaust ensuring  architectural ceiling outlook.

  • Circular diffuser with solid or perforated front panel
  • Detachable front panel enables  cleaning of the diffuser and ductwork
  • Deflector panels for direction of flow pattern in 1-3 directions

Overview

  • Ceiling diffuser with side slot in circular shape
  • Suitable for supply and exhaust
  • Installation either directly to ductwork or to balancing plenum
  • Detachable front panel enables the cleaning of the diffuser and ductwork
  • Deflector panels for direction of flow pattern in 1-4 directions
  • Circular duct connection with rubber gasket

Accessories

  • Set of deflector panels provide control flow pattern direction.
  • Balancing plenum with measurement and adjustment functions
  • Installation panel for modular ceiling

Product models

  • JDB/S, solid front panel
  • JDB/P, perforated front panel
  • Direct installation to the ceiling opening
    • Standard T-bar ceiling
    • Clip-in ceiling

Quick selection



Dimensions

Halton Jaz JDB, basic model (WS=NA)

NS Ø W H ØD
125 300 116 124
160 300 121 159
200 450 126 199
250 450 136 249
315 570 146 314

Halton Jaz JDB, ceiling integrated model (WS = T or C)

NS W W1
(WS=T)
W1
(WS=C)
H ØD
125 300 595 600 119 124
160 300 595 600 124 159
200 450 595 600 129 199
250 450 595 600 139 249
315 600 595 600 149 314

WS-T  =  Standard T-bar, tile 600×600
WS-C  =  Clip-in ceiling, tile 600×600

Weight

NS  kg
125 1.2
160 1.2
200 2.4
250 2.4
315 4.4

Material

 Part  Material  Note
Upper plate  Steel
Upper plate,
ceiling integrated model (WS)
 Steel
Front panel  Steel
Deflection panels (DP)  Foamed plastic
Coupling sleeve with gasket  Galvanised steel  Gasket rubber compound
Installation panel (PI)  Steel
Finishing  Painted
White (RAL 9003)
 Special colour available

Accessories

 Accessory Code  Description
 Deflector panel DP A set of panels for providing the flow pattern in
3, 2 and 1  directions
 Balancing plenum TRI For balancing and equalising the airflow
and attenuating the duct noise
(polyester fibre)
 Balancing plenum TRH For balancing and equalising the airflow
and attenuating the duct noise
(mineral wool)
 Installation panel PI-N For standard 600×600 module ceiling installation,
colour white (RAL 9003)
PI-C For Clip-In module ceiling installation,
colour white (RAL 9003)

Installation panel (PI)

Function

  • Air is supplied into the space through the side slots and mixed with the room air outside the diffuser.
  • Recommended maximum air temperature difference between supply and room air is 10 °C.
  • The throw pattern can be deflected in different (1, 2 and 3) directions with the deflection panels.

Product models

Halton Jaz JDB/S (solid front panel)

 Halton Jaz JDB/P (perforated front panel)

 Halton Jaz JDB, ceiling integrated model (WS=T or C)

Installation

Fig.1. Halton Jaz JDB (solid) installed with installation panel (PI)

The diffuser is connected either directly to the duct by screwing or riveting, or alternatively to the Halton TRI or Halton TRH balancing plenum.

The desired flow pattern is selected during installation with the deflector panels, according to the installation manual.

The recommended minimum safety distance upstream of the diffuser is 3xD.

In an exhaust application deflector is not used.

Installation in suspend ceiling

Ø D  Ø d
124 160
159 215
199 255
249 320
314 405

Installation with ceiling panel (PI)

 

Code   Description
PI-N   T-bar ceilings
PI-C   Clip-in (Dampa)

Installation with integrated ceiling model (WS)

Code  Description
WS-T  T-bar ceilings
WS-C  Clip-in (Dampa)

Installation with Halton TRI or Halton TRH

Diffuser collar of Halton TRI plenum can be installed either internally or externally onto the bottom of the plenum. The height of the unit for the external installation is presented in the table below. When the collar in Halton TRI is installed internally, the heights H and H1 are reduced by 60 mm (see images below).

Option 1: Diffuser collar installed externally (Halton TRI and TRH)

Option 2: Diffuser collar installed internally (Halton TRI) 

NS Ø D1 Halton TRI H H1
125 100 TRI-100-125 91 248
125 125 TRI-125-125 91 278
160 100 TRI-100-160 96 253
160 125 TRI-125-160 96 283
160 160 TRI-160-160 96 323
200 125 TRI-125-200 101 288
200 160 TRI-160-200 101 328
200 200 TRI-200-200 101 378
250 160 TRI-160-250 111 338
250 200 TRI-200-250 111 388
250 250 TRI-250-250 111 452
315 200 TRI-200-315 121 398
315 250 TRI-250-315 121 462
315 315 TRI-315-315 121 508
NS Ø D1 Halton TRH H H1
125 100 TRH-100-125 80 232
125 125 TRH-125-125 80 260
160 100 TRH-100-160 85 237
160 125 TRH-125-160 85 265
160 160 TRH-160-160 85 297
200 125 TRH-125-200 90 270
200 160 TRH-160-200 90 302
200 200 TRH-200-200 90 354
250 160 TRH-160-250 100 312
250 200 TRH-200-250 100 364
250 250 TRH-250-250 100 416
315 200 TRH-200-315 110 374
315 250 TRH-250-315 110 426
315 315 TRH-315-315 110 491

The technical performance for the combination of supply air diffuser and plenum is presented separately for these two different installation cases.

Adjustment

The diffuser itself has no means for airflow adjustment.

In order to enable airflow adjustment and measurement of airflow rate it is recommended to connect the diffuser to the HaltonTRI/TRH balancing plenum. The supply flow rate is determined by using the measurement and adjustment module MSM.
Open the front plate and pass the tubes and control spindle through the side slot of the diffuser. Replace the front panel.

Measure the differential pressure with a manometer. The flow rate is calculated using the formula below:

Adjust the airflow rate by rotating the control spindle until the desired setting is achieved. Lock the damper position with a screw.
Set the tubes and spindle back into the plenum and push back the diffuser front panel.

The k-factor for installations with different safety distances
(D=duct diameter)

TRI > 8xD min 3xD
100 6.0 7.5
125 9.9 12.6
160 16.9 21.9
200 28.3 32.0
250 47.9 51.5
315 78.6  –
TRH > 8xD min 3xD
100 6.5 7.5
125 10.8 12.6
160 19.4 21.9
200 29.7 31.0
250 48.8 51.5

Servicing

Open the front panel of the diffuser and clean the parts by wiping them with a damp cloth.

Push the front panel back into place so that the springs lock.

Option with balancing plenum

Open the front panel of the diffuser.
Remove the measurement and adjustment module by gently pulling the shaft.
Note: Not the control spindle or measurement tubes!

Wipe the parts with a damp cloth, instead of immersing in water.

Remount the measurement and adjustment module by pushing in the shaft until the unit meets the stopper.
Push the front panel back into place so that the springs lock.

Specification

The diffuser shall be made of painted steel with a white (RAL 9003) standard colour. Air shall be introduced into the space through the side slot, ensuring a high mixing rate. Flow pattern of the diffuser shall be adjustable in 1, 2 or 3-way directions by shaping the deflector.

Alternative 1: No balancing plenum

The diffuser shall have a spigot with integral gasket for connection to circular duct.
The diffuser shall have a detachable solid or perforated front panel to provide access to the duct.

Alternative 2: Option with balancing plenum

The diffuser shall be connected to a balancing plenum equipped with a measurement and adjustment module.
The diffuser shall have a detachable solid or perforated front panel to provide access to the measurement and adjustment module in the plenum.
The balancing plenum shall have a spigot with integral gasket for airtight duct connection.
The balancing plenum shall comprise sound attenuation material made of polyester fibre with a washable surface.

Order code

JDB/S-D

S = Model
S      Solid front panel
P      Perforated front panel

D = Nominal duct connection size
125, 160, 200, 250, 315

Other options and accessories

CO  = Colour
SW    Standard, white (RAL 9003)
X       Special RAL colour

WS = Ceiling integrated model
NA     Not assigned
T       Standard T-bar ceiling, tile 600×600
C       Clip-in ceiling, tile 600×600 (Dampa)

ZT  = Tailored product
N        No
Y        Yes (ETO)

Sub products

DP        Direction set
PI          Panel for ceiling installation:
PI-N     T-bar ceilings
PI-C      Clip-in (Dampa)

Balancing plenums with airflow controls and sound attenuation
Halton TRI/S for supply air
Halton TRI/E for exhaust air
Halton TRH/S for supply air

 Code example

JDB/S-200, CO=SW, WS=NA, ZT=N

Downloads

Halton Jaz JDB – Diffuser with side slot
Data
en
Halton Jaz JDB – Hajottaja sivuraolla
Data
fi
Halton JDB – Diffuseur plafonnier circulaire
Data
fr
Halton JDB – Cirkulär takspridare med spalt
Data
se
Halton Jaz JDA and JDB - installation - universal
Manual
en_GB
268.22 KB
Halton JDB - fr
Datasheet
fr_FR
909.09 KB
  • Max. file size: 16 MB.

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