SLN - Linear slot diffuser

Linear slot diffuser for ceiling or wall installation

Affordable and aesthetic design for demanding environments.

  • Horizontal or vertical plane jet air supply
  • Special profile diffuser blade creates a Coanda effect which enables wide range or air flow rates
  • Supply in one or two directions
  • Ceiling or wall installation, suitable also for continuous "wall to wall" installations
  • Adjustable throw pattern, flexibility of orientation with different configurations
  • Detachable diffuser allows cleaning of the terminal unit and ductwork
     

ACCESSORIES

  • Plenum with a circular duct connection(s) D160...250mm with rubber gasket
  • Plenum options with measurement and adjustment functions
  • Sound insulation for plenum

Halton-brand ceiling diffuser, type SLN, with two to four slots, suitable for variable air flow.

Excellent Coanda effect provided with a wide range of air flow rates.

The supply air pattern shall be directable by adjusting the flow deflection vanes without any change in the appearance of the diffuser.

The linear slot diffuser shall have an extruded aluminium outer frame, flow deflection vanes and T- profiles, and be anodised or polyester-painted to white (RAL 9010) colour.

The diffuser shall be connected to the ductwork using a plenum with mineral wool as sound attenuation material.

The removable linear slot diffuser shall be mounted into the plenum with invisible screws.

The plenum shall comprise an airflow measurement and adjustment module.

The linear diffuser shall be removable in order to provide access to the measurement and adjustment module in the plenum.

Flow deflection vanes and T-profiles shall be easily removable for access to the plenum.

Introduction

Halton SLN

Linear Slot Diffuser


 

  • Horizontal or vertical plane jet air supply
  • Special profile diffuser blade creates a Coanda effect which enables wide range or air flow rates
  • Supply in one or two directions
  • Ceiling or wall installation, suitable also for continuous "wall to wall" installations
  • Adjustable throw pattern, flexibility of orientation with different configurations
  • Detachable diffuser allows cleaning of the terminal unit and ductwork
     

Accessories

  • Plenum with a circular duct connection(s) D160...250mm with rubber gasket
  • Plenum options with measurement and adjustment functions
  • Sound insulation for plenum .
     
     

Dimensions

Dimensions


Halton SLN

'
 


 

Halton SLN + PLD



 

 

 

Standard dimensions of the Halton SLN + PLD unit with standard end caps are presented in the table below.
 

Active
length
Slots F L L1 H H1 K K1 K2 ØD
572 2 92 618 572 295..315 240 105 85 155 1x200
872 2 92 918 872 295..315 240 105 85 155 1x200
1172 2 92 1218 1172 295..315 240 105 85 155 1x200
1472 2 92 1518 1472 295..315 240 105 85 155 2x200
1772 2 92 1818 1772 295..315 240 105 85 155 2x200
572 3 130 618 572 295..315 240 143 123 193 1x200
872 3 130 918 872 295..315 240 143 123 193 1x200
1172 3 130 1218 1172 295..315 240 143 123 193 1x200
1472 3 130 1518 1472 295..315 240 143 123 193 2x200
1772 3 130 1818 1772 295..315 240 143 123 193 2x200
572 4 168 618 572 345..365 290 181 161 231 1x250
872 4 168 918 872 345..365 290 181 161 231 1x250
1172 4 168 1218 1172 345..365 290 181 161 231 1x250
1472 4 168 1518 1472 345..365 290 181 161 231 2x250
1772 4 168 1818 1772 345..365 290 181 161 231 2x250

Needed hole in the ceiling : F x (L1+10)


 

Material

Material


Halton SLN

 Part  Material  Finishing  Note
 Outer frame  Aluminium  Anodised or Epoxy-painted:
 White
 (RAL  9010 50% gloss)
 Special colours available
 Epoxy/Polyester painted
 as option
 End caps /
 T profiles
 Aluminium  Anodised or Epoxy-painted:
 White
 (RAL 9010 50% gloss)
 Special colours available
 Epoxy/Polyester painted
 as option
 Flow deflection vanes  Aluminium  Anodised or Epoxy-painted:
 White
 (RAL 9010 50% gloss)
 Special colours available
 Epoxy/Polyester painted
 as option
 Plenum  Galvanised
 steel
   



 

Accessories

Accessories


Halton SLN 

 Accessory Code  Description
 Plenum PLL  Plenum for duct connection
 (with or without attenuation material)
 Plenum PLD  Plenum for duct connection
 (without attenuation material)
 End caps N1  For modular ceiling, Width = 23 mm (2 pcs)
 End caps E1  For modular ceiling, Width = 12.5 mm (2 pcs)
 Installation brackets    For installation of the diffuser with a PLL or PLD plenum
 Staff brackets    For installation of the diffuser without plenum

Special end caps are available for modular ceilings.
 

Function

FUNCTION

 



Supply air is supplied through the linear slots of the diffuser, either horizontally along the ceiling surface or vertically into the occupied zone.
For wall installation, the plane jet air is supplied horizontally or directed to the ceiling surface, which increases the throw length.

 

Installation

INSTALLATION

 
 

Code description:

  1. Mounting bracket
  2. Transversal bar
  3. Screw

The SLN linear slot diffuser is connected directly to the PLL or PLD plenum.
The plenum is installed into the suspended ceiling with M8 drop rods (not included in the delivery) and connected to the ductwork.

Remove the T-profiles of the SLN by pulling them gently, in order to access the transversal bars located behind the profiles.
Fit the installation brackets into the grooves of the plenum and secure with the screws supplied with the unit.
Put screws into the holes of the transversal bars. Screw on until the diffuser is flush to the ceiling.
Replace the T-profiles.

The unit can be installed without plenum using the staff brackets. Those pieces are available as accessory (2 by slad or by linear meter).

 

STRING COURSE MOUNTING
The maximum length is 2000mm. So when length is superior to 2000mm, it is necessary to place side by side several pieces. Some alignement guides are given in order to make the the mounting easier.

Adjustment

ADJUSTMENT

The air pattern can be changed through 180° by manually adjusting the flow deflection vanes.
Each deflection vane section can be individually adjusted without removing the T-profiles, to provide flexibility in supply air pattern orientation.
 


 

To aid in adjusting and measuring the air flow rate, it is recommended that the diffuser is connected to a plenum equipped with a MSM.
The supply air flow is determined by measuring the pressure difference with a measurement module.
Measure the differential pressure with a manometer. The air flow rate is calculated according to the following formula:
 

where:

∆Pm is the measured pressure (Pa)
is a factor given as a function of mounting and diameter
Qv is the airflow rate (l/s)

 

The k factor for installations with different safety distances (distance of other items from the MSM):

 

 

  Safety distance
Sigot Diameter > 6XD min 3XD
160 19 22
200 49 32
250 51 51


Adjust the air flow rate by rotating the control spindle until the desired setting is achieved.
Lock the damper in position with a screw.
Replace the tubes and spindle in the plenum, and return the linear diffuser to its position.

Servicing


SERVICING


Remove the T-profiles.
Remove the linear diffuser by unscrewing the screws of the transversal bars.
Clean the parts by wiping with a damp cloth.
Push the linear diffuser back into place by screwing the transversal bars to the installation brackets.

Option: with balancing plenum PLD + MSM (or PLL + MSM)

Remove the measurement and adjustment module by gently pulling the shaft (not the control spindle or measurement tubes!).
Wipe the parts with a damp cloth, instead of immersing in water.
Reassemble the measurement and adjustment module by pushing the shaft into place until the module meets the stopper.
Push the linear diffuser back into place by screwing the transversal bars to the installation brackets.

Specification

 

SUGGESTED SPECIFICATIONS

  

  • Halton-brand ceiling diffuser, type SLN, with two to four slots, suitable for variable air flow. 
  • Excellent Coanda effect provided with a wide range of air flow rates.
  • The supply air pattern shall be directable by adjusting the flow deflection vanes without any change in the appearance of the diffuser.
  • The linear slot diffuser shall have an extruded aluminium outer frame, flow deflection vanes and T- profiles, and be anodised or polyester-painted to white (RAL 9010) colour.
  • The diffuser shall be connected to the ductwork using a plenum with mineral wool as sound attenuation material.
  • The removable linear slot diffuser shall be mounted into the plenum with invisible screws.
  • The plenum shall comprise an airflow measurement and adjustment module.
  • The linear diffuser shall be removable in order to provide access to the measurement and adjustment module in the plenum.
  • Flow deflection vanes and T-profiles shall be easily removable for access to the plenum.
     

Product Code


PRODUCT CODE

SLN-N-L

   N = Number of slots
    2, 3, 4

   L = Active Length
    400, +1, .., 50000


Specifics and accessories

  SE = End caps (Y/N)
   Y  Yes
    N  No

   ST = Type of end caps
    NA  Not assigned
    N1  Standard 23 mm
    E1  Type E1
     
   FI = Finishing
   
AN  Anodised
    PN  Painted

   CO = Colour
    W  White
    N  No painting

Code example

   SLN-2-400, SE=Y, ST=N1, FI=AN,CO=N


Sub products

   PLD  Plenum (Diffusers)

References stored

References stored

20007201 SLN2-1172-W
20007202 SLN3-1172-W
20007203 SLN2-1472-W
20007204 SLN3-1472-W
20007220 SLN3-572
20007219 SLN2-572

 

Accessories stored

8000680 ETRIER STAFF SLL SLN, 2F
8000681 ETRIER STAFF SLL SLN, 3F
8000682 ETRIER STAFF SLL SLN, 4F
8000687 GUIDE D'ALIGNEMENT

Downloads & Media

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