09 54 00 - Operating Room Modular Diffuser System.pdf

RENOVATE BLDG 204 CATH LAB II

Project #621-22-121

OPERATING ROOM MODULAR DIFFUSER SYSTEM

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09 54 00

PART 1 – GENERAL

WORK INCLUDED

A. The purpose of this specification is to provide a modular diffuser system with integral LED flush lighting, sprinkler system capability, and integral structural support that has the capability of accepting operating room ceiling mounted equipment loads directly. The system will be installed by the Contractor in accordance with the manufacturer’s instructions as outlined in the manufacturer’s installation manual. Supplier of this modular diffuser system shall be responsible for all costs associated with the engineering, manufacturing, and project coordination of lights, sprinklers, structural boom, and equipment supports (whether integral or not) included within the boundary of this modular system. These costs shall include the supply of the air delivery system, lighting system, sprinkler system and structural support system as identified above along with the layout and engineering for all electrical wiring, piping, mechanical and support structures within the system. These costs also include a set of fully executed and stamped structural engineering calculations on the entire modular system, including all components mentioned above, for the state in which this project will be installed. The structural calculation package shall be delivered to the project team after the most current submittal has been returned

“Approved” and has been signed and returned by an authorized administrator of the project team.

1.2 SYSTEM DESCRIPTION

A. The operating room modular diffuser system shall be constructed of a continuous extruded aluminum grid channel, integrated LED lighting, slide plate dampers, perforated diffusion screens, steel plenum, integrated boom mounts, and integrated sprinkler system capability.

The ceiling grid is required to be completely sealed off from the air delivery to the room. The complete diffuser system shall have an anti-microbial powder coating to ensure all exterior and interior surfaces are protected and/or manufactured from stainless steel. The system shall be capable of accepting operating room ceiling mounted equipment loads directly as part of an engineered and structurally stamped system.

1.3 QUALITY ASSURANCE

A. Owner’s Factory Inspection:

1. The owner or owner’s representative shall maintain the right to inspect the operating room diffuser system at manufacturer’s plants any time during the fabrication process of the diffuser system intended for this project.

2. The owner may exercise the option, giving 24-hour advance notice minimum, to tour the plant, inspect the diffuser system and any manufacturing process of that equipment to ensure that quality

09 54 00 - 2 control is being maintained.

1.4 SUBMITTAL

A. Submittal shall be by the manufacturer.

B. Required with the Bid: Detailed information on structural, mechanical, electrical, and other services necessary to evaluate installation requirements.

C. Required after execution of Contract: Shop drawings shall be submitted within two weeks of purchase order acceptance, and they shall include:

complete specifications, drawings, and cut sheets for components used in the diffuser system, with make, model, dimensions, capacity, weight, and electrical schematics.

1.5 MANUFACTURER CONTACTS

A. Contact manufacturer directly if additional information is required, such as product or material descriptions, layouts, or installation requirements. Manufacturer is required to have a full-scale Surgical

Suite mock-up showing the Modular Diffuser system similar to the product available for demonstration.

PART 2 - PRODUCTS

2.1 ACCEPTABLE MANUFACTURERS

A. CARES operating room diffuser system as manufactured by AJ

Manufacturing

2.2 DIFFUSER GRID SYSTEM

A. The grid system shall utilize a Bottom-Load Extruded Aluminum Flush

Ceiling Grid. Diffusers, blank pans, and optional filters shall be capable of being loaded from the bottom into the grid system. The grid shall have integral stainless steel retention clips for diffuser, blank pan, and optional filters.

B. Grid members shall be welded together into modules. These modules shall have an anti-microbial powder coating and shall be caulked with an appropriate sealant as necessary. The grid system shall be constructed so as to remain dimensionally stable.

C. The grid system shall have integrated LED flush lighting within the grid channel. Light fixtures, such as teardrop lights, are not permitted. Light fixtures that block the airflow within the supply air, such as recessed light troffers, are not permitted.

1. The complete lighting system consisting of LED assemblies, drivers, controllers, wireway, lenses, and wiring shall be an integral part of the ceiling grid. All electrical components shall be UL listed and so marked.

2. The drivers and/or controllers shall be housed within the grid channel and separated from the low voltage area with a listed wireway cover. Drivers and/or controllers shall be UL listed and so marked.

3. Wiring within the grid for the lighting circuit shall be contained

09 54 00 - 3 within and protected by the wireway cover. The raceway system integral to the grid shall have the ability to handle normal and emergency wiring circuits. The raceway system integral to the grid shall have the ability to handle high and low voltage wiring circuits. The light lens shall sit flush with the bottom of the grid channel. Light lens covers shall be clear polycarbonate ribbed diffusers that snap flush to the grid channel without external fasteners.

4. Perimeter lighting shall be capable of having both white and green LED lighting with clear polycarbonate light lens covers so as to have white light on with interior system lighting or to have green perimeter lighting when the white is not needed.

5. The complete lighting system shall have the ability to color tune between 2700k-6500k as well as control the brightness by dimming from off to 100%.

6. LED lighting shall achieve Color Rendering Index (CRI) up to 97 as well as a CRI R9 score of up to 97.

7. LED lighting shall have an efficiency greater than 157 lumens per watt.

8. LED lighting shall be rated for L70 > 138,000 hours, L90 >

42,000hours based on LM-80 testing.

9. All LED lighting diodes shall be 3-Step MacAdam Ellipse color sorted or better.

D. The grid system shall incorporate a diffusion screen that is flush with the light lens and has perforated edges on all sides of the screen to jet air underneath the lens so as to wash the area below the lens of particles. The diffusion screen shall provide laminar flow

4 inches below the grid surface. The diffusion screens shall be made from anti-microbial powder-coated aluminum.

1. The diffusion screen shall have integral slide plate dampers that are mechanically fastened above.

2. Slide plate dampers must be adjustable thru the diffusion screen from the room side to facilitate ease of air balancing of the modular diffuser system.

E. The installing contractor shall furnish and install the allthread rod up to and including the connection components at the building structure.

F. The grid system shall be capable of hanging patient lifts, equipment supports, and other components.

G. The flush grid shall have an integrated fire protection sprinkler system, where required.

1. The grid system shall have the ability to place fire protection piping through the grid channel itself. Provide sprinkler port penetrations in the ceiling grid channel at all sprinkler head locations, as indicated on the drawings.

2. Fire sprinkler piping within the module will be factory-installed, sealed, and powder- coated. The piping shall be run internally and stub out on the roof or side of the module. The ceiling grid channel shall be capable of accepting a true flush sprinkler head within the width of the extrusion.

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H. All surfaces that are scratched shall be painted and touched up by the contractor after installation. Paint color to match all surfaces or as approved by the engineer or owner.

I. Blank Panels: Solid blank panels shall be constructed of powder coated steel with welded corners, an upward facing trough, gasketed, and designed to affect an airtight seal in the channel grid. The finish of the panel is to match the ceiling grid finish.

J. Care should be used in selection of materials that are resistant to cleaning agents used by the owner.

2.3 AIR SUPPLY INTEGRATED TO CEILING GRID

A. Provide a steel plenum attached to the ceiling grid as an integral part of the modular diffuser system. Modules shall be supplied completely pre-assembled with the grid and plenum as one piece.

B. The modules shall be capable of being suspended from the building structure based on the coordination between the structural engineer of record and the modular diffuser system manufacturer’s structural stamped package. The structural engineer of record shall be responsible for designing the structural connections and related steel infrastructure to support the ceiling system from the building.

C. Modules will be welded style construction using steel side and top panels welded to a HSS tube steel frame. Side and top panel thickness shall be sized to meet structural load requirements. Holes will be provided at the perimeter of the module roof for suspension.

D. Units shall be manufactured to dimensional tolerance of +/- 1/8" on width and length and diagonal dimensions or squareness of +/-1/8".

E. Provide pre-drilled bolt holes in the sides of modules for field connection of one module to another where applicable.

F. The modules shall be capable of accepting operating room ceiling mounted equipment loads directly as part of an engineered and structurally stamped system.

PART 3 - EXECUTION

3.1 INSTALLATION - GENERAL

A. Install in accordance with the manufacturer’s installation manual.

The installing contractor shall be responsible for the complete installation of the operating room ceiling system. All repairs and re-testing cost of the repairs and other related tests that would have to be repeated as a result of repairs done to the system shall be the installing contractor’s responsibility.

3.2 MODULE INSTALLATION

A. It is the intent that the modules be installed to line and true level, symmetrical to rooms and spaces, and with due regard to appearance and structural stability. The ceiling shall be level throughout within

1/8 inch.

B. All suspended ceiling system work shall be done in accordance with

09 54 00 - 5 the procedures endorsed by the Ceiling and Interior Systems

Contractor’s Association (CISCA), except where specified otherwise.

C. Lay out modules as shown on shop drawings. Coordinate with mechanical and electrical equipment in framing and cutting around ceiling penetrations.

D. Hang level as shown on the drawings in accordance with ASTM C636 and the manufacturer’s current printed instructions for the type of installation used.

E. Modules shall be supported from building structure per structural engineer of record. Modules shall be bolted together per manufacturer’s installation manual. A sealant is required at all joints, after full system assembly is complete. All field assembly and materials are by contractor unless noted.

F. Install hanging hardware at specified locations and per manufacturer’s installation manual.

G. Install seals per manufacturer’s installation manual.

H. Diffusers, blank pans, and optional filters shall be installed per manufacturer’s installation manual.

I. Shipped loose lighting fixtures are to be installed per the manufacturer’s layout drawing and installation manual. Wiring shall be installed by electrical contractor to meet all local codes.

3.3 MATERIAL PREPARATION, CLEANING, AND FINAL CLEANUP

A. The general cleanliness requirements shall be that all hardware exposed to the operating room interior or in the airstream, regardless of size or complexity, must be visibly free of oil, grease, particles, chips, fibers, dirt, etc., prior to installation in the operating room area.

B. The general cleaning sequence for the units shall be as follows:

Visual inspection per above; vacuum removal of particles; solvent wipe cleaning; drying; visual inspection per above.

3.4 CEILING CERTIFICATION

A. At the completion of the ceiling installation, with all components installed and wall system in place, an independent certifier under a separate contract shall conduct a series of tests to ensure that the operating room complies with owner’s specifications.

END OF SECTION