Slot Diffuser Installation

1. 4 Inch Linear Slot Diffuser Installation Detail
2. Linear Slot Diffuser Installation Details
3. Linear Slot Diffuser Installation Detail
4. Slot Diffuser Installation Details
5. Titus Linear Slot Diffuser Installation

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. 5 Installation Assembly Fig. 1 Slot diffusers of type VSD15 are also suitable for mounting onto the sides of light troffers. The method of fixing and components required must be agreed. All necessary provisions/components will then be supplied by Trox, i.e. Inserts, clamping angles etc. 4 shows an example with clamping angle.

Description :

4 Inch Linear Slot Diffuser Installation Detail

Connols-Air Linear Slot Diffuser is mainly rated for supply but can be used as return unit or as combination unit as in the case with air-light fixtures. Our linear slot can be easily used with integrated ceiling system with appropriate installation accessory and special frame profile to match the ceiling design. Diffusers are available in 1 to 4 slots and in standard length of 1200 mm with end caps for plaster ceiling installation. For installation on inverted ceiling Tee bar, the diffuser will be constructed of standard 1194 mm length to suit 1200 X 600 mm accessible ceiling system. Standard length diffuser as such are available ex-stock in powder coated standard baked enamel RAL 9010. However longer length up to a maximum of 2400 mm can be custom-made when required. For length, longer than 2400 mm or continuous run linear slot diffuser, they may be formed by joining together 1800mm or 2400 mm diffusers with balance dimensions at each end. Alignment pins and/or bracket may be supplied to ensure straight joints. In addition to straight length diffuser, customised curve shape diffuser with or without acoustic plenum may be available as shown.

Supply air diffuser is supplied with acoustic plenum that is internally lined with fire retardant acoustic foam for better indoor air and sound quality. The acoustic plenum may be supplied with inlet butterfly damper (optional) so that fine airflow balancing with the damper may not increase the generated noise. Acoustic plenum is constructed of galvanised steel of standard length 1200 nominal dimension with one inlet spigot of size 150, 200 or 250 mm diameter. Longer acoustic plenum is available in length of 1800 and 2400 mm and may be provided with one or two inlet spigots depending on the air handling capacity of the linear slot diffuser.

Linear slot diffuser of similar number of slot may be used for matching return diffuser. The blade of the diffuser is used for minor airflow balancing. Acoustic plenum may be provided for better noise control.

For installation of diffuser on plaster ceiling great care must be considered during design phase of the project to ensure proper installation can be achieved during construction.

Features

Linear Slot Diffuser Installation Details

• Frames and blades are constructed of corrosion resistance aluminium alloy and tempered to give rigidity
• Air Flow pattern setting is easy with dual function blade
• Flow pattern adjustable to give horizontal one or two-way throw or vertical throw for high ceiling installation
• Acoustics plenum internally insulated with fire retardant acoustic foam provide noise attenuation and hence ensure lower room noise.

General Information:

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:

• 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:

Linear Slot Diffuser Installation Detail

• The diffuser is located along the longitudinal axis of the ceiling, next to the wall, in a room of the following size:

Slot Diffuser Installation Details

• The air jet is adherent (Coanda effect), i.e., the diffuser is mounted flush with the ceiling.

For the selection tables with vertical discharge:

• 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 P_t 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.

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

Titus Linear Slot Diffuser Installation

The factor is known as C_a. 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, C_a is equal to 1, since these diffusers have been tested in a square room (A/L =1) .