Linear Slot Diffuser Detail

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Linear m x 0.8 = 61.9 L/s/linear m). The nominal airflow of a diffuser is determined by multiplying the diffuser length, the number of slots, and the airflow per linear foot. Using the airflow per linear foot calculated above, a 4 foot, 2-slot, 2-way diffuser should be designed to handle 4 linear ft x 2 slots x 40 cfm/linear ft = 320 cfm (1.219. Dasco linear slot diffusers DLD-C(S/R) are designed to give a comprehensive and full range of air flow patterns and volumes. Their deflector blades and volume control dampers give a full flexibility in air patternand volume control. These are fully adjustable from the face of the diffuser.

Linear Slot Diffusers are an excellent choice for continuous linear applications such as perimeter office space, airport terminals, convention centers and shopping malls. The flexibility of these diffusers allows installation in a variety of applications to maximize occupant comfort. Linear slot diffusers are available in both straight. The sound level of a linear slot diffuser is in direct ratio to the velocity of the air passing through it. Due to the reduced sound level of SLD diffusers, air passing through a properly selected outlet will not add any appreciable noise to the sound level of the general air conditioning system. TRUaire LD Linear Slot Diffusers. Sleek and unobtrusive, TRUaire LD linear slot diffusers are the architects dream come true. Long narrow slots take the place of traditional 'fins'. The installation is flush with the wall or ceiling, and the diffuser all but disappears within the natural lines of the structure.

Aerodynamically designed blades provide a tight horizontal pattern that maintains stability even at low airflow rates, making the SDS ideal for VAV applications. Excellent for architectural applications, the SDS has many mounting styles and is available with multiple slot widths and quantities to meet a range of airflow requirements.

Linear Slot Diffuser Detail Kits

SlotConstruction Options
  • Models
    • Supply (SDS)
    • Return (SDR)
    • Curved supply/return (SDC)
    • 4-way Slot Diffuser (SDS4)
  • Plenum
    • Sloped (SDA)
    • Square (SDB)
  • Slot Widths
    • 1/2 in.
    • 3/4 in.
    • 1 in.
    • 1 1/2 in.
  • Slot Quantity
    • 1 to 10
  • Accessories
    • Blank-off strips
    • Mitered corner section (MC)

General Information:

Linear Slot Diffuser Detail Replacement

Ventech produce Linear Slot Diffusers from specially drawn aluminium profiles. They are suitable for ceiling and high side-wall applications. Thanks to the connection possibilities of the slot diffusers it is possible to create continuous diffusers in multiple metres and with different corner angles. The two continuous blade type dampers enable to select the throw direction. Upon demand it is possible to mount sliding type volume regulating dampers at the entries of the slot diffusers.

It is also possible to produce the slot diffusers with plenum boxes. The plenum boxes are produced with side entries only, insulated or uninsulated in accordance with customer’s demand. Standard colors of the diffusers are white and other colors are also possible upon customer’s request.

Features:

Detail
  • Made of high quality extruded aluminium profile
  • Designed for variable air volume systems
  • The directions and volume of the discharge air can be adjusted by moving the pattern controllers
  • Full 180 ° pattern controller adjustment means there is no left or right, specifying ordering and installing are simplified
  • Multiple sections are provided with alignment accessories to provide superior, positive field alignment
  • Size manufactured on request
  • Up to 8 slots available

General notes on the quick selection table:

For supply or return air, fully adjustable loose core linear slot diffuser with unique air pattern control design. The air pattern can be adjusted in situ or factory, set to suit design requirements. It is suitable for ceiling mounting applications. The loose core linear slot diffuser's unique design allows the installer to simply push the complete core of the diffuser upwards to allow it to be screw fixed to the box above then simply dropped back down into the frame.

For the selection tables with lateral discharge:

  • The diffuser is located along the longitudinal axis of the ceiling, next to the wall, in a room of the following size:
  • The air jet is adherent (Coanda effect), i.e., the diffuser is mounted flush with the ceiling.
Slot

For the selection tables with vertical discharge:

Linear Slot Diffuser Detail Instructions

Linear Slot Diffuser Detail
  • The diffuser is located in the middle of the ceiling in a square room.
  • Positioning for vertical discharge, as non-adhering jet.
  • The diffuser length is less than 0.5 times the width of the room and less than 0.5 times the throw.
  • The pressure Pt is measured inside the duct upstream of the plenum box.
  • The height of the room is 3 ± 0.5m
  • The ΔT is equal to -10°C, the temperature difference between the room and the supply air.
  • The maximum velocity is 0.25m/s in the occupied zone.
Linear Slot Diffuser Detail

Correction factor for width to length ratio of the room ( applied on both 20 & 25mm ).

Titus Linear Slot Diffuser

The factor is known as Ca. To calculate, divide the diffuser width less length by the length of the room. This is applicable to linear slot diffusers with lateral discharge. In diffusers with vertical discharge, Ca is equal to 1, since these diffusers have been tested in a square room (A/L =1) .