Halton Jaz JCC, thin ceiling diffuser

Overview

feature

• Ceiling diffuser with side slot in square and circular shape
• Low construction height minimizes the installation space
• Diffuser is is is available for air supply and exhaust
• installation either directly to ductwork or to balance 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 unit ( ship and ferry )

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)

Operating principle

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 need for 4 direction supply or exhaust airflow .

quick selection

Values with adjustment module (MSM) fully open.

Fig. 5. quick selection for square front panel (models A and C), supply with unit l/s

Fig. 6. quick selection for circular front panel (models B and D), supply with unit l/s

Fig. 7. quick selection for square front panel (models A and C), supply with unit m³/h

Fig. 8. quick selection for circular front panel (models B and D), supply with unit m³/h

Stucture and materials

note : Same material option available for circular and square model .

Dimensions and weight

Halton Jaz JCC , square model ( A , C )

Halton Jaz JCC, circular model (B,D)

Halton Jaz JCC , square ceiling integrated model ( WS )

Halton Jaz JCC, circular ceiling integrated model (WS)

Halton Jaz JCC with Halton Pop PDI plenum

Fig. 9. Halton Jaz JCC with Halton Pop PDI plenum, externally positioned connection spigot

Fig. 10. Halton Jaz JCC with Halton Pop PDI plenum, internally positioned connection spigot

Product models

Fig.11. Halton Jaz JCC, square with solid front panel (A)

Fig.12. Halton Jaz JCC, circular with solid front panel (B)

Fig.13. Halton Jaz JCC, square with perforated front panel (C)

  Fig.14 . Halton Jaz JCC , circular with perforated front panel ( d )

Fig.15. Halton Jaz JCC, square solid ceiling integrated model (WS=t)

  Fig.16 . Halton Jaz JCC , circular solid ceiling integrate model ( WS = t )

Specification

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 is has 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 balance 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 balance plenum is comprises comprise sound attenuation material made of polyester fibre with a washable surface or mineral wool .

Installation

Fig. 17. Halton Jaz JCC diffuser with square front panel connected to a Halton Pop PDI plenum

the diffuser is connected usually to balancing plenum Halton Pop PDI. Alternatively, it can be connected direct to the duct by riveting or screwing. In that case, minimum safety distance to the next t-branch or curve is three times the duct diameter (3xD).

the desired flow pattern is selected during installation with the deflector parts, according to the installation manual. In exhaust application the deflector part is not used.

Commissioning

Fig . 18 . Adjustment of airflow of diffuser and plenum combination

Airflow control

the diffuser itself has no airflow adjustment. to adjust and measure the supply airflow rate, the diffuser shall be combined with Halton Pop PDI balancing plenum with 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 front panel (Fig . 18 .). Replace the front panel. Measure the differential pressure with a manometer. the flow rate is calculated using the formula below:

where

• q_v           Airflow rate [l/s] or [m³/h ]
• ∆p_m      Measured pressure [Pa]
• k             the k factor ( see the table below )

Adjust the airflow rate by rotating the control spindle until the desired airflow rate (pressure difference) is achieved.

Set the tubes and spindle back into the plenum. Damper position can be locked with a knurled head screw of the adjuster.

Maintenance

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 spring 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 spring lock .

Order code

JCC / M – D , MA – co – WS – Zt

order code example

JCC/A-200, MA=St, CO=SW, WS=nA, Zt=n

Downloads

• Halton Jaz JCC – Diffuser

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• Halton Jaz JCC – Hajottaja

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• Halton Jaz JCC – Fiche technique

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  Français ( fr )

• Installation and maintenance guide – Halton Jaz Cloud Ceiling (JCC)

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