Halton Jaz Sky Ceiling (JSC) – Nozzle diffuser

 N = Number of nozzles

Halton Jaz Sky Ceiling with Halton TRI plenum

Halton Jaz Sky Ceiling with Halton TRH plenum

Maximum allowed temperature for the plastic material in nozzles is 60 °C.

 
Fig.1.  Halton TRI                                          Fig.2.  Halton TRH

The air is supplied into the space through the adjustable nozzles in front panel of the diffuser.

The individual nozzle includes two separate flow channels that enable a large free area for supply air and effective mixing effect. The supply air pattern can be freely directed radially in the direction(s) desired (1, 2, 3 and 4) by rotating the nozzles. Horizontal swirl or compact air patterns can also be achieved by adjusting the nozzles.

Direction of the supply air jet has no effect on the noise level, pressure drop or airflow rate.

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

  
Fig.3.  Installation above list                        Fig.4. Installation under list

The diffuser is available in size 595×595 for direct integration to the modular T-bar ceiling (600×600, T-profiles 24mm).

Ceiling installation for standard sizes can be made above or below T-bars.

The diffuser is connected either direct to the duct by screwing or riveting, alternatively to the Halton’s connection plenums TRI or TRH.

Direct the flow pattern in the desired directions by individually rotating each nozzle in order to meet the required specifications (directed at 4 ways as standard).

A recommended minimum safety distance upstream of the diffuser is normally 3 x duct diameter.

Installation in suspended ceiling

Recommended opening dimensions when installing to the drywall or other panel celilings.

Installation with plenum

The collar in Halton’s TRI can be installed either internally or externally on the bottom of plenum. The height of unit is presented in the tab Dimensions.

A recommended minimum safety distance upstream of the plenum is normally 3 x duct diameter.

The technical performance for the combination of Halton Jaz Sky Ceiling diffuser and Halton plenum is presented separately for different installations.

 
Fig.5. Installation with Halton TRI plenum

Opening the diffuser

Open the front panel using some suitable thin material (like plastic sheet – Fig.4.). Push the sheet on the slot between front panel and chamber on the side where the Halton logo is located (distance about 50 mm from the corners). Pull slightly to open the front panel.

Detach the open front panel by pressing the hinge from inside (Fig.5); reassembly it by pulling it against the hinges.

Close the front panel by pushing it until the springs lock.

 Fig.6.  Open with thin plastic sheet

Fig.7.  Press the hinge from inside

Halton Jaz Sky Ceiling diffuser does not include any separate airflow adjustment.

In order to enable the adjustment and measurement of airflow rate it will be recommended to connect the diffuser to Halton TRI or TRH plenum. The supply airflow rate is determined by using the plenum’s measurement and adjustment module.

Open the diffuser’s front panel and pass the tubes and control spindle through the plastic nozzle. Replace then the front panel.

Measure the differential pressure using a suitable manometer. The airflow rate is calculated using the formula below.

Adjust the airflow rate by rotating the control spindle until the desired setting is achieved. If needed lock the damper position with the screw in module.

Replace the tubes and spindle into the plenum.

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 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. Wipe also 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.

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

The diffuser is installed flush with the ceiling surface. The diffuser is made of powder painted galvanised steel with a white standard colour (RAL 9003). Air is supplied through the plastic nozzles, which have two-slot design in order to ensure efficient mixing of supply air. Nozzles are also individually adjustable for providing high flexibility for the adjustment of throw pattern.

The diffuser has a detachable front panel providing access to the duct and/or plenum.

The diffuser is installed alternatively to the balancing plenum or direct to the duct. Connection plenum has a detachable measurement and adjustment module, attenuation material and cleanable structure.

JSC-D-A-N, CO-ZT

D = Size of duct connection (mm)  
100, 125, 160, 200, 260, 315

A = Diffuser front panel size (mm)
420, 600

N = Number of nozzles
16, 36, 81

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 products

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 

JSC-125-420-36, CO=SW, ZT=N