Halton Jaz Cloud Ceiling (JCC) – Diffuser

Features

• Ceiling diffuser with side slot in square and circular shape
• Low construction height minimizes the installation space
• Diffuser is available for air 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 available for selection of flow pattern in 1-4 directions

Accessories

• Deflector panel to provide control for flow pattern direction
• Balancing plenum with measurement and adjustment functions
• Installation panel for modular ceiling
• Control knob when in use with cabin units (ships and ferries)

Product models

• Square, with solid or perforated front panel
• Circular, with solid or perforated front panel
• Direct installation to the standard T-bar ceiling opening
• Material alternative in stainless steel (EN1.4404/AISI316L)

Fig.1.  Halton Jaz Cloud Ceiling with square front panel, supply

Fig.2.  Halton Jaz Cloud Ceiling with square front panel, exhaust

Fig.3.  Halton Jaz Cloud Ceiling with circular front panel, supply

Fig.4.  Halton Jaz Cloud Ceiling with circular front panel, exhaust

Fig.5.  Halton Jaz Cloud Ceiling with square front panel and Halton TRI, supply

Fig.6.  Halton Jaz Cloud Ceiling with circular front panel and Halton TRI, supply

Fig.7.  Halton Jaz Cloud Ceiling with square front panel and Halton TRH, supply

Fig.8.  Halton Jaz Cloud Ceiling with circular front panel and Halton TRH, supply

Halton Jaz Cloud Ceiling, square model (A,C)

Halton Jaz Cloud Ceiling, circular  model (B,D)

Halton Jaz Cloud Ceiling, square ceiling integrated model

Halton Jaz Cloud Ceiling, circular ceiling integrated model

Halton Jaz Cloud Ceiling with Halton TRH balancing plenum

Halton Jaz Cloud Ceiling with Halton TRI balancing plenum

Halton TRI, collar in external position

Halton TRI, collar in internal position

Weight (kg)

Halton Jaz Cloud Ceiling, square

Halton Jaz Cloud Ceiling, circular

Note: Same material options available for circular and square models.

Fig.1. Deflector panel attached to diffuser (DP)

 
Fig.2. Installation with Halton TRH       Fig.3. Installation with Halton TRI

 
Fig.4. Square diffuser with installaltion panel (PI)

Fig.5. Circular diffuser with installaltion panel (PI)

Fig.6. Diffuser with control knob (CK)

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 parts (included in delivery).
Deflection part not needed for 4 direction supply or exhaust airflow .

Fig.1. Halton Jaz Cloud Ceiling, square with solid front panel (A)

Fig.2. Halton Jaz Cloud Ceiling, circular with solid front panel (B)

Fig.3. Halton Jaz Cloud Ceiling, square with perforated front panel (C)

 Fig.4. Halton Jaz Cloud Ceiling, circular with perforated front panel (D)

Fig.5. Halton Jaz Cloud Ceiling, square solid ceiling integrated model (WS=T)

 Fig.6. Halton Jaz Cloud Ceiling, circular solid ceiling integrated model (WS=T)

The diffuser is connected either to the duct by screwing or by riveting or alternatively to the Halton TRH or TRI balancing plenum. The duct connection spigot is equipped with a seal gasket. The diffuser can be installed:

• Flush with the ceiling
• Without the ceiling

The desired flow pattern is selected during installation with the deflector parts, according to the Installation and maintanence guide.
In an exhaust application deflector part is not used.

The recommended minimum safety distance upstream of the diffuser is 3xD with straight duct. When using balancing plenum no safety distance is required between the diffuser and the plenum.

NOTE: Step-by-step instructions on how to install the diffuser can be found in the Halton Jaz Cloud Ceiling Installation and maintenance guide. To download the guide go to the “Downloads” section.

The diffuser itself has no means for airflow adjustment.

In order to enable airflow adjustment and measurement of supply airflow rate it is recommended to connect the diffuser to the Halton TRI or TRH balancing plenum. The supply flow rate is determined by using the 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 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:

∆p_m      Measured pressure [Pa]
k           The k factor given as a function of mounting and diameter
q_v         Airflow rate [l/s]

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)

Halton TRI

Halton TRH

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.

The diffuser is made of painted steel with a white (RAL 9003) standard colour or stainless steel (EN1.4404/AISI 316L). Air is introduced into the space through the side slot, ensuring a high mixing rate. The flow pattern of the diffuser is as standard for 4 directions. It is adjustable in 1, 2, or 3 -way directions by shaping the deflector.

Alternative 1: Without balancing plenum

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

Alternative 2: With balancing plenum

The diffuser is connected to a balancing plenum equipped with a measurement and adjustment module.
The diffuser has a detachable solid or perforated front panel to provide access to the measurement and adjustment module in the plenum.

The balancing plenum has a spigot with integral gasket for airtight duct connection.
The balancing plenum comprises sound attenuation material made of polyester fibre with a washable surface or mineral wool.

JCC/M-D, MA-CO-WS-ZT

M = Model
A      Square with solid front panel
B      Circular with solid front panel
C      Square with perforated front panel
D      Circular with perforated front panel

D = Nominal duct connection size (mm)
100, 125, 160, 200, 250

Other options and accessories

MA = Material
ST     Steel
AS    Stainless steel (EN1.4404/AISI 316L)

CO = Colour
SW    Signal white (RAL 9003)
X        Special colour (RAL xxxx)
NA     Not assigned

WS = Ceiling integration model
NA     Not assigned
T        Standard T-bar ceiling (tile 600×600)

DP = Deflection panels
Y        Yes
N        No

CK = Control knob (for cabin units only)
N       No
Y        Yes

ZT  = Tailored product
N        No
Y        Yes (ETO)

Code example

JCC/A-200, MA=ST, CO=SW, WS=NA, ZT=N