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KOO
Architectural Adjustable Long Throw Multi Nozzle Jet Diffuser
The KOO Long Throw Multi-Jet Nozzle Diffusers represent a vanguard in design of air diffusers. Integrating one or two rows of jet nozzles into a rectangular panel, the outcome is a smooth and homogeneous surface reducing the visual impact on interior architecture.
KOO consists of multiple aluminum nozzles that are aligned in one or two rows, in a galvanized steel panel. Two different nozzle diameters are available, including 3 5/32” (80 mm) and 4 59/64” (125 mm). It is possible to have between two and twenty nozzles per panel. There are a total of 32 available combinations to supply air between 15 cfm and 1065 cfm.
KOO comes with multiple optional features:
- Concealed spring clips with secure hooks for ceiling installation, reducing the installation time to a few seconds and with no visible screws.
- Matching PLRX plenums with either top or side connection(s).
- Wide selection of air volume dampers, including our standard perforated damper/air equalizer and our series of cable-operated dampers.
- Plenums also available with acoustical liner or thermal insulation.
- IEK adapter to mount KOO directly on round metal ducts.
- Adjustable Airflow
- Yes
- Material
- Aluminum, Galvanized Steel
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Description
The KOO Long Throw Multi-Jet Nozzle Diffusers represent a vanguard in design of air diffusers. Integrating one or two rows of jet nozzles into a rectangular panel, the outcome is a smooth and homogeneous surface reducing the visual impact on interior architecture.
KOO Jet Nozzle Panel Diffusers respond to different functional and architectural requirements, thanks to their manually adjustable nozzles in all directions.
KOO consists of multiple aluminum nozzles that are aligned in one or two rows, in a galvanized steel panel. Two different nozzle diameters are available, including 3 5/32” (80 mm) and 4 59/64” (125 mm). It is possible to have between two and twenty nozzles per panel. There are a total of 32 available combinations to supply air between 15 cfm and 1065 cfm.
Thanks to its long throw and flexibility of direction of the air pattern, KOO is suitable for air diffusion in all kinds of different architectures. It provides a high induction air rate level, reducing stratification.
The concealed spring clip system reduces the installation time to a few seconds. It also includes secure hooks for ceiling installation. The result is a smooth and homogeneous surface that reduces the visual impact on the interior architecture.
Matching PLRX plenums are available with either top or side connection(s). There is also a wide selection of air volume dampers, including our standard perforated damper/air equalizer and our series of cable-operated dampers. Other options include acoustical liners and thermal insulation. Similar to all of our plenums, anti-seismic tabs are standard.
KOO can also be mounted directly on a round metal duct using an IEK adapter.
Specifications
23 37 XX – High Performance Architectural Jet Diffusers
KOO – Adjustable Long Throw Multi-Nozzle Jet Diffusers (with PLRX
Guide specification text for specifiers. The PDF is the reference document.
Read the specificationCollapse
plenums)
PART 1 – GENERAL
1.1 SUMMARY
A. Adjustable long-throw multi-nozzle jet diffuser(s) for large spaces and high ceilings; suitable for wall or ceiling mounting.
B. Each jet nozzle shall be manually adjustable to direct airflow up to 30 degrees in each direction.
C. Suitable for air conditioning, ventilation, and heating applications with temperature differential up to 22°F (12°C).
D. Provide manufacturer-supplied plenums for all KOO diffusers. Plenums shall be supplied by EffectiV and sized/configured for the scheduled diffuser size, mounting type, and duct connection(s).
1.2 SUBMITTALS
A. Product Data: Manufacturer’s data for scheduled diffuser size(s), nozzle diameter, number of nozzles, free area, recommended airflow range, pressure loss, diffuser-generated NC, and throw values (including values with and without ceiling effect where published).
B. Shop Drawings: Show model designation, panel size, nozzle diameter, nozzle quantity and arrangement (one row or two rows), finish, mounting type, plenum type, duct connection layout, and all scheduled damper/equalizer and accessory selections. Indicate acoustical insulation and thermal insulation where specified or required for the application.
C. Airflow Prediction Report (Required): Provide manufacturer-generated room airflow prediction report for each diffuser type and unique room condition using manufacturer performance data and recognized correction methods. Report shall include:
- 3D room layout with diffuser placement.
- Predicted airflow visualization views: plan, section, and elevation.
- Throw distances for terminal velocities of 150, 100, 60, 50, 40, 30, and 20 fpm.
- Pressure loss at scheduled airflow.
- Diffuser-generated NC.
- Perceived NC at room center (5 ft height), 63–8000 Hz octave bands; include assumptions used.
D. Verified CFD Validation (When Indicated): Provide EffectiV Verified CFD validation and summary report for spaces indicated on drawings and/or when operation is outside published selection limits.
1.3 SUBSTITUTIONS
A. Substitutions per Division 01.
B. Proposed equals shall provide a line-by-line compliance matrix including all Part 1 deliverables, including the Airflow Prediction Report.
PART 2 – PRODUCTS
2.1 BASIS OF DESIGN
A. EffectiV KOO adjustable long-throw multi-nozzle jet diffuser(s).
2.2 CONSTRUCTION AND MATERIALS
A. Nozzles: Spun aluminum jet nozzles; each nozzle rotates independently for directional adjustment.
B. Face panel: Galvanized steel panel.
C. Rotation seal: Non-deformable material meeting fire/smoke classification requirements as published by manufacturer.
D. Finish: Factory powder coat, TGIC-free, white M9016 unless otherwise scheduled.
2.3 CONFIGURATION (AS SCHEDULED)
A. Provide scheduled panel size(s) and height(s) with one row or two rows of nozzles, as scheduled.
B. Provide scheduled nozzle diameter:
- 80 mm (3-5/32 in), or
- 125 mm (4-59/64 in).
C. Select diffuser size within manufacturer recommended minimum and maximum airflow ranges for the scheduled configuration.
2.4 MOUNTING (AS SCHEDULED)
A. Provide one of the following mounting types:
- S: Concealed pressure clips mounting (requires PLRX plenum or mounting frame), or
- T: Visible screws mounting.
B. Optional adapter: Provide IEK adapter where scheduled for direct mounting on round duct.
2.5 PLENUMS AND INTEGRATED AIR VOLUME DAMPERS (AS SCHEDULED)
A. Plenums (required): Provide PLRX plenums by EffectiV for all KOO diffusers; attach diffuser per manufacturer’s method.
B. Plenum types (as scheduled):
- PLRX-S
- PLRX-T
C. Integrated air volume damper / equalizer options (as scheduled): Perforated damper + air equalizer; R; MRT; MRT2; EB; EB2.
D. Limitation: MRT, MRT2, EB, and EB2 damper options shall be provided only where the scheduled diffuser configuration includes two nozzle rows (panel heights 8 in and 12 in).
PART 3 – EXECUTION
3.1 INSTALLATION
A. Install diffusers level, straight, and aligned; coordinate wall or ceiling mounting orientation and discharge direction per plans.
B. Coordinate access for balancing and for any damper adjustment.
3.2 ADJUSTING
A. Balance to scheduled airflow and set nozzle directions to achieve the design air pattern.
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SelectiV · Verified
Designing a room? Start with the air.
Use SelectiV to lay out diffusers in 3D, or ask for a Verified CFD study to validate comfort, IAQ and energy before anything is installed.