CME - Conical diffuser

Circular diffuser for ceiling installation

Easy to clean and maintain.

  • Horizontal air supply, suitable also for exhaust.
  • Cooling applications with supply/room air temperature difference as low as -8 °C.
  • Installation flush to the ceiling or exposed.

PRODUCT MODELS & ACCESSORIES

  • Models integrated in a panel for installation in modular suspended ceilings with dimension options of 600 x 600mm.
  • Balancing plenum with airflow adjustment function (PLC) or even with measurement function (TRI).
  • Adjustment module for balancing of the airflow.

The diffuser shall be made of several stamped cones, made of aluminium with a white (RAL 9010) standard colour.

The diffuser shall be suitable for installation on exposed ductwork or flush to the ceiling.

OPTION 1

The diffuser shall be connected to the ductwork using a TRI balancing plenum, which utilises polyester fibre with a washable surface as sound attenuation material.

OPTION 2

The diffuser shall be connected to the ductwork using a PLC plenum, which utilises mineral wool as sound attenuation material.

The plenum shall have an airflow measurement and adjustment unit.

The diffuser shall be suitable for installation in 600x600 false ceilings.

The diffuser shall be removable.

The air discharge pattern shall be radial around the full perimeter of the air diffuser.

The cones shall form divergent sections, which shall create areas of underpressure and so induce room air into the unit.

Introduction

Halton CME

Conical Ceiling Diffuser
 


 

  • Horizontal air supply, suitable also for exhaust.
  • Cooling applications with supply/room air temperature difference as low as -8 °C.
  • Installation flush to the ceiling or exposed.


 Product Models & Accessories

  • Models integrated in a panel for installation in modular suspended ceilings with dimension options of 600 x 600mm.
  • Balancing plenum with airflow adjustment function (PLC) or even with measurement function (TRI).
  • Adjustment module for balancing of the airflow.
     

Dimensions

Dimensions


Halton CME


 

 

NS ØW ØD Number of cones
160 263 158 3
200 303 198 4
250 353 248 5
315 418 313 6

 

Model with front panel

    

 

NS W
600x600 595x595

 

 

Material

Material


Halton CME

 Part  Material  Finishing
 Diffuser  Aluminium  Epoxy-painted,
 white (RAL 9010)
 Plenum box  Galvanised steel

 

Accessories

Accessories


Halton CME 

 Accessory Code  Description
 Balancing plenum with
 airflow measurement and
 adjustment unit
TRI/N  For balancing, equalising the airflow
 Plenum PLC  Plenum for duct connection
 (with or without insulation)
 Airflow measurement
 and adjustment unit
MSM  For supply installation



 

Product Models

Product models


Halton CME

 Product model Code  Description
 Standard CME/A  Sizes 160, 200, 250 and 315 are
 available

 Diffuser integrated in front panel,
 600 x 600 mm

CME/B  Sizes 160, 200, 250 and 315 are
 available integrated in a steel panel for
 installation in a modular 600x600 mm
 suspended ceiling.
 The external dimensions of the
 front panel are 595 mm x 595 mm.



 

Function

Function


Halton CME 



Supply air is divided horizontally into several jets through the cones.
Room air and supply air mix.

The diffuser can also be used as an exhaust unit.
 

Installation

Installation


Halton CME 



The Halton CME diffuser can be installed flush with a suspended ceiling or fully exposed in the space.
The diffuser is connected directly to the duct using a Halton PLC plenum or Halton TRI balancing plenum. When it is connected directly to ductwork, a safety distance of minimum 3D upstream of the diffuser should be maintained.

The technical performance for the combination of supply air diffuser and HaltonTRI plenum is presented separately for the two different installations.
 

Installation with plenum  Halton TRI or Halton PLC


 

NS ØD TRI H
160 160 TRI-160-160 330…365
200 200 TRI-200-200 380…415
250 250 TRI-250-250 445…480
315 315 TRI-315-315 490...525

When the Halton TRI spigot is installed in the plenum,
the H dimensions can be reduced by 60 mm.

 

NS ØD PLC H
160 160 PLC 160 315…350
200 200 PLC 200 405…440
250 250 PLC 250 405…440
315 315 PLC 315 555…590


Adjustment

Adjustment


Halton CME
 

The airflow rate can be adjusted and measured only when the diffuser is installed.

In order to enable airflow adjustment and measurement of airflow rate, we recommend that the diffuser be connected to a plenum equipped with the MSM module.
The supply flow rate is determined using measurement and adjustment module MSM.

Detach the diffuser and pass the tubes and control spindle through the diffuser.
Measure the differential pressure using a 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.
Lock the damper position with a screw.
Replace the tubes and spindle in the plenum and push the diffuser back into place.

k factor for installations with different safety distances (D= duct diameter)
 

NS (PLC/TRI) >8xD min 3xD
160 16.9 21.9
200 28.3 31.0
250 47.9 51.5
315 78.6  

Servicing

Servicing


Halton CME

Remove the diffuser by gently drawing it out.
Clean the parts by wiping them with a damp cloth.
Push the diffuser back into place.
 

Option with balancing plenum Halton TRI + MSM
or Halton PLC + MSM

Remove the measurement and adjustment module by pulling gently on the shaft (not the control spindle).
Wipe the parts with a damp cloth, instead of immersing in water.
Reassemble the measurement and adjustment module by pushing the shaft until the module meets the stopper.
Push the diffuser back into place.
 

Technical specification

Technical specification
 

The diffuser shall be made of several stamped cones, made of aluminium with a white (RAL 9010) standard colour.
The diffuser shall be suitable for installation on exposed ductwork or flush to the ceiling.
 

Option 1

The diffuser shall be connected to the ductwork using a Halton TRI balancing plenum, which utilises polyester fibre with a washable surface as sound attenuation material.
 

Option 2

The diffuser shall be connected to the ductwork using a Halton PLC plenum, which utilises mineral wool as sound attenuation material.
The plenum shall have an airflow measurement and adjustment unit.
The diffuser shall be suitable for installation in 600x600 false ceilings.
The diffuser shall be removable.
The air discharge pattern shall be radial around the full perimeter of the air diffuser.
The cones shall form divergent sections, which shall create areas of underpressure and so induce room air into the unit.
 

Product Code

Product code


CME/V-S

V = Model
     
A     Standard
      B     Suspended ceiling tile (600x600)

S = Connection size
    
 160, 200, 250, 315
 


Other options and accessories
 

FI   = Finishing 
         
PN    Painted

CO = Colour
        
W    White RAL 9010

ZT = Tailored product
      
  N       No


Sub products

       PLC    Plenum (Ceiling diffusers)
       TRI     Plenum (Diffusers) 

 

Example of coding

       CME/A-200,FI=PN, CO=W

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