KOBE

PART 1 – GENERAL

1.1 SUMMARY

A. Adjustable long-throw linear jet diffuser(s) for large spaces and high ceilings; suitable for wall mounting (horizontal long-throw) or ceiling mounting (downward wash, including window walls).

B. Field-adjustable discharge angle: ±30 degrees.

C. Suitable for variable or constant airflow; temperature differential up to 22°F (12°C).

D. Continuous appearance: Where a continuous linear appearance is indicated, install individual KOBE diffusers flange-to-flange to form a continuous line.

1.2 SUBMITTALS

A. Product Data: Manufacturer’s data for scheduled slot width(s), length(s), and mounting type(s), including pressure loss, diffuser-generated NC, and throws (including values with and without Coanda effect, where published).

B. Shop Drawings: Show diffuser model designation, slot width, nominal length, finish, mounting type, plenum type (if provided), duct connection layout, and all scheduled damper/equalizer and accessory selections. Where continuous appearance is required, indicate flange-to-flange layout and joint locations.

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:

1. 3D room layout with diffuser placement.
2. Predicted airflow visualization views: plan (top), section (side), elevation (front).
3. Throw distances for terminal velocities of 150, 100, 60, 50, 40, 30, and 20 fpm.
4. Pressure loss at scheduled airflow.
5. Diffuser-generated NC.
6. 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 KOBE adjustable long-throw linear jet diffuser(s), aluminum construction.

2.2 SLOT WIDTHS (AS SCHEDULED)

A. Provide one of the following slot widths as scheduled: 15, 20, 25, 30, 40, or 50 mm.

2.3 LENGTHS (AS SCHEDULED)

A. Provide nominal lengths as scheduled, within the published nominal length range 300 to 2000 mm.

2.4 MATERIALS AND FINISH

A. Construction: Aluminum.

B. Finish: Factory powder coat, TGIC-free, White M9016 (RAL 9016) unless otherwise scheduled; alternate RAL finishes where specified.

2.5 MOUNTING (AS SCHEDULED)

A. Provide one of the following mounting systems as scheduled:

1. -PM: Concealed bracket mounting.
2. -PL: Concealed spring clips mounting (clip system available with PLKB plenum).

2.6 PLENUMS AND INTEGRATED AIR VOLUME DAMPERS (AS SCHEDULED)

A. Plenum (as scheduled): Provide PLKB plenum compatible with selected mounting type.

B. Plenum types (as scheduled):

1. PLKB-S-PM
2. PLKB-S-PL
3. PLKB-T-PM
4. PLKB-T-PL

C. Integrated air volume damper / equalizer options (as scheduled): Perforated damper + air equalizer; R; MRT; MRT2; EB; EB2.

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. Where continuous appearance is required, install units flange-to-flange with tight, aligned joints.

C. Set discharge angle within ±30° range as required for the design intent.

3.2 ADJUSTING

A. Balance to scheduled airflow and verify discharge direction and long-throw performance.