OSUT_1_23_37_13_Diffusers,_Registers,_and_Grills.pdf

OUST-AR RANGE PROJECT FY19

SECTION 23 37 13

DIFFUSERS, REGISTERS, AND GRILLS

08/08

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN SOCIETY OF HEATING, REFRIGERATING AND AIR-CONDITIONING

ENGINEERS (ASHRAE)

ASHRAE 113 (2009) Method of Testing for Room Air Diffusion (Repeatable Method of Testing Steady - State Air Diffusion Performance in Occupied Zones of Building Spaces)

ASHRAE EQUIP IP HDBK (2004) Handbook, HVAC Systems and Equipment (IP Edition)

ASHRAE EQUIP SI HDBK (2004) Handbook, HVAC Systems and Equipment (SI Edition)

ASHRAE FUN IP (2009) Fundamentals Handbook, I-P Edition

ASHRAE FUN SI (2009) Fundamentals Handbook, SI Edition

1.2 GENERAL REQUIREMENTS

Section 23 00 00 AIR SUPPLY, DISTRIBUTION, AND EXHAUST SYSTEMS applies to work specified in this section.

1.3 PERFORMANCE REQUIREMENTS

Certify air diffusion devices s having been tested and rated in accordance with ASHRAE EQUIP IP HDBK, Chapter 17; ASHRAE FUN IP, Chapter 31, and ASHRAE 113, where such certification is required.

Submit Equipment and Performance Data for air-diffusion devices consisting of sound data in terms of Noise Criteria (NC) index for the capacity range of the device.

1.4 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Submit the following in accordance with this section.

Material, Equipment, and Fixture Lists Records of Existing Conditions

SD-02 Shop Drawings

Submit Fabrication Drawings for air-diffusion devices in accordance with this section.

Submit Installation Drawings for air-diffusion devices in accordance with the paragraph entitled, "Installation," of this section.

SD-03 Product Data

Submit Equipment and Performance Data for air-diffusion devices in accordance with paragraph entitled, "Performance Requirements," of this section.

SD-04 Samples

Submit Manufacturer's Standard Color Chart in accordance with this section.

SD-10 Operation and Maintenance Data

Provide operation and maintenance manuals consistent with manufacturer's standard brochures, schematics, printed instructions, general operating procedures and safety precautions.

Provide manuals for the following air-diffusion devices:

Type TS Supply Troffer Type TSR Combination Supply and Return Troffer

PART 2 PRODUCTS

2.1 AIR-DIFFUSION DEVICE CONSTRUCTION

Preclude flutter, rattle, or vibration on air-diffusion device construction and mounting. Refer to Section 23 05 48 VIBRATION AND SEISMIC CONTROLS FOR HVAC PIPING AND EQUIPMENT for vibration isolation considerations. Modify devices and provide accessories necessary for mounting in indicated surface construction.

Select color from Manufacturer's Standard Color Chart which indicate the manufacturer's standard color selections and finishes for air-diffusion devices.

Match color with architectural background.

Provide color as indicated on drawings.

Provide supply diffusers with combination damper and equalizing grid.

Ensure dampers are extracting-splitter type, except as otherwise indicated.

Ensure air-diffusion device volume and pattern adjustments can be made from the face of the device. Make volume adjustments by removable key.

Provide gaskets for supply-terminal air devices mounted in finished surfaces.

Include within the Material, Equipment, and Fixture Lists the manufacturer's style or catalog numbers, specification and drawing reference numbers, warranty information, and fabrication site information.

Submit Records of Existing Conditions consisting of the results of Contractor's survey of work area conditions and features of existing structures and facilities within and adjacent to the jobsite. Commencement of work constitutes acceptance of existing conditions.

Submit Fabrication Drawings for air-diffusion devices consisting of fabrication and assembly details to be performed in the factory.

2.2 TYPES OF AIR-DIFFUSION DEVICES

2.2.4 Type DRE

Provide type DRE supply diffuser, round with three expanding cones to provide discharge air paths, minimally, two-position adjustable for horizontal or vertical discharge.

2.2.6 Type DP Series

Provide type DP series return diffuser with a square, perforated, hinged, face plate with opposed blade volume control, white baked enamel exterior finish, and black matte finish on exposed-to-view interior surface.

2.2.10 Type GS

Provide type GS supply and return grille double deflection type with adjustable face bars parallel to short dimension and adjustable rear bars parallel to long dimension.

Provide a baked enamel finish.

Provide aluminum construction.

PART 3 EXECUTION

3.1 INSTALLATION

Install equipment as indicated and specified and in accordance with manufacturer's recommendations.

Submit installation Drawings for air-diffusion devices. Indicate on drawings overall physical features, dimensions, ratings, service requirements, and equipment weights.

-- End of Section --