• Linear slot diffusers Foam gasket is sealed around the back of the frame as option to avoid air leakage. Suitable for installation for ceiling and sills. Alert: Airmaster is committed to the fight against COVID-19.
• LINEAR SLOT DIFFUSERS LINEAR SLOT DIFFUSERS TABLE OF CONTENTS Installation Instructions Plaster finishing for types 8 & 8A.
• 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.

How to Specify

1-slot diffuser, or remove the inner vane(s) from a 2- or more-slot diffuser to expose the mounting holes in the diffuser cross member (stay). Both the pattern control element/adjustment vane assembly and the inner vane(s) can be removed by pulling them out of the friction clip from the face side of the diffuser.

AL20 [1] [2] [3] [4] [5] [6]

[1] Type:

• 50 - 1/2' slot
• 75 - 3/4' slot
• 10 - 1' slot

[2] Style:

1. Diffuser Only
2. Diffuser with pattern controller

[3] Number of Slots:

• 01-08 slots

[4] Mounting Style:

• B0 - T-Bar Lay-in -Diffuser Only
• E0 - Diffuser Only
• E1 - Hanger Bracket
• E2 - Standard Mounting Frame
• F0 - Screw holes in margin

[5] End Caps:

• E1 - One end
• E2 - Both ends
• 00 - None

[6] Length (inches)

• 12' min
• 999' max

[7] Finish

• CLR - Clear Anodized
• WHT - Bright White

Linear Slot Diffuser Cad Detail

• Extruded alumninum construction
• Three slot types: 50 (1/2' slot), 75 (3/4' slot), 10 (1' slot)
• One to eight slots wide for air volume of 10-350 cfm per foot
• Adjustable pattern controller
• Three margin styles: B, E, F
• 12' minimum length.
• Maximum one-piece length 72', lengths over 72' made in multiple units with pin splices for even continuous lengths (1/8' increments). 999' maximum continuous length.
• Available as diffuser-only or diffuser with pattern controller.

Margin Styles

B0 – T-Bar Lay-in Diffuser Only

Linear Slot Diffuser Detail Kits

Duct Width: A + 1/16
Overall Width: A + 7/8

E1

Overall Width: A + 3/4

Please see submittal drawing & hyperlink for details

E2

Linear Slot Diffuser Detail Kit

Overall Width: A + 3/4

Please see submittal drawing & hyperlink for details

E0 – Diffuser Only

Duct Width: A + 7/16
Overall Width: A + 7/8

F0 – Screw Holes in Margin

Duct Width: A + 7/16
Overall Width: A + 7/8

Mitered Corners

• 90-degree mitered corners are available as factory-fabricated section. Precise factory cutting and assembly reduces field fabrication time and assures proper fit. Corner sections are furnished and blanked off. Corner sections butt to adjacent straight sections, which are spliced together with aligning keys.
• Mitered corners are furnished in mounting style E2. When viewed from the room side, the mitered corner section appears identical to the butting straight sections.
• Plaster frame mitered corners can be specified with the outlet mitered corner.

How to Order

S [1] [2] [3] [4] [5] [6] [7]

[1] Type:

• 50 - 1/2' slot
• 75 - 3/4' slot
• 10 - 1' slot

[2] Number of Slots:

Linear Slot Diffuser Detail Kit

• 01-08 slots

[3] Mounting Style:

• B0 - T-Bar Lay-in -Diffuser Only
• E0 - Diffuser Only
• E1 - Hanger Bracket
• E2 - Standard Mounting Frame
• F0 - Screw holes in margin

[4] Milter Type:

• C - Ceiling
• SI - Sidewall Inside
• SO - Sidewall Outside

[5] MC

[6] 90

[7] Finish

• CLR - Clear Anodized
• WHT - Bright White

The new linear slot diffusers HELLA and HELLA-T show similarity in names with old HELLA-A and HELLA-AT, because they share the DNA origin.

Linear Slot Diffuser Detail Replacement

Though, there is a huge evolution leap between the generations, expressed as:

• Versatile slot diffuser system for installation in many types of ceilings
• Easily installed with plenum box or on duct or pressurized ceiling
• As single diffuser element or architectural system array
• Appealing look, easy handling
• Superior performance in CFD assisted design using space saving plenum box with leakage class C compliant with EN 1751
• Fine adjustable air flow volumes and distribution parameters

Linear Slot Diffuser Detail Instructions

HELLA and HELLA-T is immediately available for purchase.

Titus Linear Slot Diffuser

For more details please visit the site of HELLA in our online catalogue.