SLHD
Air Diffusers Linear Slot Diffusers Introduction KMC Linear Slot Diffusers have been designed to satisfy architectural concepts that require continuous length applications without compromising air distribution performance. These diffusers utilizes the pattern controller with Hit & Miss dampers in each slot to control the direction of air discharge either parallel with or perpendicular to its face surface. The adjustment from the face of the diffuser allows for pattern control in a full 180 degree range for either right or left parallel, intermediate or perpendicular.
Application • The SLHD & RLHD series Linear Diffusers are deigned to combine aesthetics with technical performance • Versatile supply linear diffuser for wall, ceiling or sill installations • The SLHD linear diffuser has been developed for variable air volume systems • Adjustable air discharge pattern for horizontal or vertical projection without change in air volume • Designed for efficient air distribution at cooling differentials upto 12º C • Suitable for both supply & return.
Product Features • Extruded Aluminum construction • Pattern control element for easy adjustment of horizontal or vertical discharge • Both the pattern controllers and Hit & Miss dampers are powder coated to Black colour • Available with Hit and Miss damper of GI construction to control air flow rates • Available in 3 slot widths 16mm, 19mm, 25mm • From 1 to 8 slots wide • Available in single lengths upto 2400mm • Units for continuous run applications provided with concealed key-ways and alignment strips for exact alignment and clean, neat appearance
Selection Procedure The selections can be made by means of a straight read-off from the “Performance Data” for the selected slot width. • Determine the Air flow rate per linear meter by dividing the total air flow by the Diffuser length. • Establish the required Throw (Refer Notes for Throw Pattern) Opposing Diffusers: Maximum Throw for each diffuser should be no more than 75% of half of the distance between them. • Select the diffuser based on required Air flow rate against the limiting pressure drop and sound level requirements
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Product Selection Check List • Select Unit length based on installation / performance requirements. • Select outlet type (Slot Width) by Model Number. • Select No of slots based on deserd perfrmance requirments. • Select accessories • Select end connection requirements. • Select Finish
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SLHD
Air Diffusers Adjustment of Pattern Controllers
Construction Details & Dimensions
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SLHD
Air Diffusers Installation Instructions With Plenum Box (provided by others) : Fix the plenum to the ceiling. The plenum has a border in the lower part by which theupper part of the diffuser can be inserted into it.Your diffuser is provided with ceiling mounting fixing U- Channels.These channels are inserted into the key way and should be slide into the final position corresponding to the opposite fixing point previously prepared on the U-Bracket as shown (plenums usually supplied with these brackets). The two elements (diffuser and plenum) can be attached together using self tapping screws and screw driver.The diffuser should be made level using a water level and by adjusting the screws positions (left, right, up and down) as shown.
With out Plenum Box: In this case the diffuser can be attached to UShape bracket (providedby others) and rest directly on the ceilingas shown.
Diffusers in Continuous Running: Normal Normal installations as described above but, fix the provided joining key strips between the diffuser and joining sections. After insertion and alignmentof the joined sections set diffusers in the final position.
Mitered Corners • Diffuser component to provide change in direction for SLHD series linear diffusers and return units • Ceilings and walls (flat surfaces) – face miter • Wall-wall corners or wall-ceiling corners • Inside corners (inside stack miter) • Outside corners (outside stack miter)
Product Features • Welded corner with standard 45° or 90° face miter, or 90° stack miter • Constructed from the same aluminum extrusions provided on SLHD diffusers and returns • Available to match any SLHD mounting frame style, slot quantity, slot width • Alignment strips and keyways for precise alignment with mating linear units • Custom angles Product Selection Check List • Select Unit length based on installation / performance requirements. • Select outlet type (Slot Width) by Model Number. • Select No of slots based on deserd perfrmance requirments. • Select accessories • Select end connection requirements. • Select Finish
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SLHD
Air Diffusers Model SLHD (Supply) - (Horizontal Throw)
Notes : • All Pressures are in Pascal • This product has been tested per ANSI/ASHRAE 70-2006, with an ideal inlet plenum. If less than ideal inlets are used, sound levels may be higher. • Throws shown are to three terminal velocity of 0.25m/s, 0.5m/s, 0.75m/s.
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SLHD
Air Diffusers Model SLHD (Supply) - (Vertical Throw)
Notes : • All Pressures are in Pascal • This product has been tested per ANSI/ASHRAE 70-2006, with an ideal inlet plenum. If less than ideal inlets are used, sound levels may be higher. • Throws shown are to three terminal velocity of 0.25m/s, 0.5m/s, 0.75m/s.
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SLHD
Air Diffusers Model RLHD (Return)
Notes : • All Pressures are in Pascal • This product has been tested per ANSI/ASHRAE 70-2006, with an ideal inlet plenum. If less than ideal inlets are used, sound levels may be higher. • Throws shown are to three terminal velocity of 0.25m/s, 0.5m/s, 0.75m/s.
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SLHD
Air Diffusers Notes
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