The diffuser is installed flush with the ceiling surface. The diffuser is made of powder painted galvanised steel with a white standard colour (RAL 9010). 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.

Quick Selection

• Dimensions
• Material
• Accessories
• Function
• Installation
• Adjustment
• Servicing
• Specification
• Order Code

Halton Jaz Sky Ceiling

JSC - square ceiling integrated diffuser, multi-nozzle 

• Ceiling diffuser for integrated installation with suspended T-bar ceiling
• Excellent and risk-free indoor air conditions with freely adjustable supply air pattern and high mixing effect.
• Suitable for air supply and exhaust
• Installation either directly to ductwork or to balancing plenum
• Easily openable front panel for convenient cleaning of the diffuser and ductwork.
• Circular duct connection with rubber gasket

Accessories 

• Balancing plenum with measurement and adjustment functions
• Installation panel for modular ceiling

Dimensions ▲

 N = Number of nozzles

Halton Jaz Sky Ceiling with Halton TRI plenum 

Halton Jaz Sky Ceiling with Halton TRH plenum

Material ▲

Maximum allowed temperature for the plastic material in nozzles is 60 ⁰C.

Accessories ▲

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

Function ▲

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 ⁰C.

Installation ▲

  
Fig.1.  Installation above list                        Fig.2. Installation under list
 

The diffuser is available in size 595x595 for direct integration to the modular T-bar ceiling (600x600, 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.3. 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.4.  Open with thin plastic sheet. 

Fig.5.  Press the hinge from inside.

Adjustment ▲

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.

Servicing ▲

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.

Specification ▲

The diffuser is installed flush with the ceiling surface. The diffuser is made of powder painted galvanised steel with a white standard colour (RAL 9010). 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.

Order Code ▲

JSC-D-A-N, CO-ZT  

D = Nominal duct connection size  
       100, 125, 160, 200, 260, 315

A = Diffuser front panel size
        420, 600

N = Number of nozzles
       16, 36, 81

Other options and accessories

CO = Colour
           W        White, as standard  (RAL 9010)
           X         Special colour (RAL xxxx) 

ZT  = Tailored product
            N        No
            Y        Yes

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=W, ZT=N