This Halton Jaz diffuser is ideal for renovated buildings and cabins due to the low construction size of the product. It is also available in stainless steel which gives the product an esthetical outlook, perforated options also available.
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
NS | W | ØD |
100 | 300 | 99 |
125 | 300 | 124 |
160 | 300 | 159 |
200 | 450 | 199 |
250 | 450 | 249 |
JCC | W | TRH | ØD | ØD1 | L | W1 | H | L1 |
100 | 300 | 100-100 | 99 | 102 | 281 | 281 | 152 | 141 |
125 | 300 | 100-125 | 99 | 127 | 281 | 281 | 152 | 141 |
125 | 300 | 125-125 | 124 | 127 | 431 | 431 | 180 | 216 |
160 | 300 | 100-160 | 99 | 162 | 281 | 281 | 152 | 141 |
160 | 300 | 125-160 | 124 | 162 | 431 | 431 | 180 | 216 |
160 | 300 | 160-160 | 159 | 162 | 431 | 431 | 212 | 216 |
200 | 450 | 125-200 | 124 | 202 | 431 | 431 | 180 | 216 |
200 | 450 | 160-200 | 159 | 202 | 431 | 431 | 212 | 216 |
200 | 450 | 200-200 | 199 | 202 | 550 | 400 | 245 | 355 |
250 | 450 | 160-250 | 159 | 252 | 431 | 431 | 212 | 216 |
250 | 450 | 200-250 | 199 | 252 | 550 | 400 | 245 | 355 |
250 | 450 | 250-250 | 249 | 252 | 600 | 450 | 295 | 378 |
Halton TRI, collar in external position
Halton TRI, collar in internal position
JCC | W | TRI | ØD | ØD1 | L | W1 | H | L1 |
100 | 300 | 100-100 | 99 | 102 | 308 | 282 | 152 | 154 |
125 | 300 | 100-125 | 99 | 127 | 308 | 282 | 152 | 154 |
125 | 300 | 125-125 | 124 | 127 | 458 | 432 | 182 | 229 |
160 | 300 | 100-160 | 99 | 162 | 308 | 282 | 152 | 154 |
160 | 300 | 125-160 | 124 | 162 | 458 | 432 | 182 | 229 |
160 | 300 | 160-160 | 159 | 162 | 458 | 432 | 222 | 229 |
200 | 450 | 125-200 | 124 | 202 | 458 | 432 | 182 | 229 |
200 | 450 | 160-200 | 159 | 202 | 458 | 432 | 222 | 229 |
200 | 450 | 200-200 | 199 | 202 | 618 | 592 | 272 | 309 |
250 | 450 | 160-250 | 159 | 252 | 458 | 432 | 272 | 229 |
250 | 450 | 200-250 | 199 | 252 | 618 | 592 | 272 | 309 |
250 | 450 | 250-250 | 249 | 252 | 618 | 592 | 336 | 309 |
Halton Jaz Cloud Ceiling, square
NS | Basic model | Ceiling integrated model |
100 | 2.5 | 4.9 |
125 | 2.6 | 5.0 |
160 | 2.8 | 5.2 |
200 | 4.6 | 6.3 |
250 | 5.1 | 6.7 |
Halton Jaz Cloud Ceiling, circular
NS | Basic model | Ceiling integrated model |
100 | 1.2 | 3.7 |
125 | 1.2 | 3.7 |
160 | 1.2 | 3.7 |
200 | 2.3 | 4.2 |
250 | 2.3 | 4.2 |
Key | Part | Material | Colour alternatives |
1 | Duct seal gasket | Rubber | – |
2 | Upper plate | Steel or stainless steel (EN1.4404/AISI 316L) |
Powder paint, white (RAL 9003) Special colours available on request |
3 | Spring lock | Steel or stainless steel (EN1.4404/AISI 316L) |
– |
4 | Deflector part | Foamed plastic | – |
5 | Front panel | Steel or stainless steel (EN1.4404/AISI 316L) |
Powder paint, white (RAL 9003) Special colours available on request |
Note: Same material options available for circular and square models.
Accessory | Code | Description |
Deflector part | DP | A set of parts for providing the flow pattern in 3, 2 and 1 directions (accessory not needed for 4 direction flow). See Fig.1. |
Balancing plenum box |
TRH | For balancing and equalising the airflow and attenuating the duct noise (mineral wool or polyester fibre) See Fig.2. |
Balancing plenum box |
TRI | For balancing and equalising the airflow and attenuating the duct noise (polyester fibre) See Fig.3. |
Installation panel | PI | For standard 600×600 module ceiling installation, colour white (RAL 9003) See Fig.4. and 5. |
Control knob | CK | For controling cabin unit (ships and ferries) |
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:
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:
∆pm Measured pressure [Pa]
k The k factor given as a function of mounting and diameter
qv 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
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 |
Halton TRH
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 |
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.
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.
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.
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.
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
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)
JCC/A-200, MA=ST, CO=SW, WS=NA, ZT=N