Exhibit_17 _1_Oct_15.pdf

SECTION 23 00 00 Page 1

JOINT BASE LEWIS-MCCHORD DESIGN STANDARDS

SECTION 23 00 00

AIR SUPPLY, DISTRIBUTION, VENTILATION, AND EXHAUST SYSTEMS

Design Requirements

a. See UFGS 23 52 00 for comments related to hot water heating piping.

b. See UFGS 23 82 02.00 10 for comments relating to heat pumps, AC units, and similar equipment.

c. See UFGS 23 64 26 for comments relating to chilled water piping systems.

Notes to Designers on Drawing Content

1. Zoning: A separate VAV box (or similar zoning device) is not necessary for every single office. Use zoning similar to as found in standard private sector commercial offices when designing office areas.

2. Accessibility: Unit must be located so as to be accessible for maintenance. Units, coils, VAV boxes, and similar items shall not be located more than 12 feet above the floor unless a catwalk, mezzanine or similar platform is designed at the units to allow for proper maintenance.

3. Removal: Allow adequate room for removal of equipment without removing portions of the building. Allow room for coil pull.

SECTION 23 00 00

AIR SUPPLY, DISTRIBUTION, VENTILATION, AND EXHAUST SYSTEMS

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.

ACOUSTICAL SOCIETY OF AMERICA (ASA)

ASA S12.51 (2002) Acoustics Determination of Sound Power Levels of Noise Sources using Sound Pressure Precision Method for Reverberation Rooms

AIR CONDITIONING CONTRACTORS OF AMERICA (ACCA)

ACCA Manual 4 (2001) Installation Techniques for Perimeter Heating

& Cooling; 11th Edition

AIR MOVEMENT AND CONTROL ASSOCIATION INTERNATIONAL (AMCA)

AMCA 201 (2002) Fans and Systems

AMCA 210 (2007) Laboratory Methods of Testing Fans for

Aerodynamic Performance Rating

AMCA 220 (2005) Test Methods for Air Curtain Units

AMCA 300 (2005) Reverberant Room Method for Sound Testing of

Fans

SECTION 23 00 00 Page 2

AMCA 301 (2005) Methods for Calculating Fan Sound Ratings from

Laboratory Test Data

AMCA 500-D (1998) Laboratory Methods of Testing Dampers for

Rating

AIR-CONDITIONING, HEATING AND REFRIGERATION INSTITUTE (AHRI)

AHRI 260 (2001; Addendum 2002) Sound Rating of Ducted Air Moving and Conditioning Equipment

AHRI 350 (2000) Sound Rating of Non-Ducted Indoor Air-

Conditioning Equipment

AHRI 410 (2001; Addendum 2002) Standard for Forced-Circulation

Air-Cooling and Air-Heating Coils

AHRI 430 (1999) Standard for Central-Station Air-Handling

Units

AHRI 440 (2005) Standard for Room Fan-Coils and Unit

Ventilators

AHRI 880 (1998; Addendum 2002) Standard for Air Terminals

AHRI 885 (1998; Addendum 2002) Procedure for Estimating

Occupied Space Sound Levels in the Application of Air Terminals and Air Outlets

AHRI DCAACP (Online) Directory of Certified Applied Air-

Conditioning Products

AHRI Guideline D (1996) Application and Installation of Central

Station Air-Handling Units

AMERICAN BEARING MANUFACTURERS ASSOCIATION (ABMA)

ABMA 11 (1990; R 1999) Load Ratings and Fatigue Life for Roller Bearings

ABMA 9 (1990; R 2000) Load Ratings and Fatigue Life for Ball

Bearings

AMERICAN SOCIETY OF HEATING, REFRIGERATING AND AIR-CONDITIONING ENGINEERS

(ASHRAE)

ASHRAE 15 & 34 WARNING: Text in tags exceeds the maximum length of

300 characters

ASHRAE 52.2 (2007; Addenda B 2008) Method of Testing General

Ventilation Air-Cleaning Devices for Removal Efficiency by Particle Size

ASHRAE 62.1 (2007; INT 2007; INT 2-15 2008; Errata 2008; Addenda a, b, e, f and h 2008) Ventilation for Acceptable Indoor Air Quality

SECTION 23 00 00 Page 3

ASHRAE 68 (1997) Laboratory Method of Testing to Determine the

Sound Power In a Duct

ASHRAE 70 (2006) Method of Testing for Rating the Performance of Air Outlets and Inlets

ASHRAE 84 (2008) Method of Testing Air-to-Air Heat Exchangers

ASHRAE 90.1 - IP (2007) Energy Standard for Buildings Except Low-Rise

Residential Buildings, I-P Edition

ASME INTERNATIONAL (ASME)

ASME A13.1 (2007) Scheme for the Identification of Piping Systems

ASTM INTERNATIONAL (ASTM)

ASTM A 123/A 123M (2008) Standard Specification for Zinc (Hot-Dip

Galvanized) Coatings on Iron and Steel Products

ASTM A 167 (1999; R 2004) Standard Specification for Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and Strip

ASTM A 53/A 53M (2007) Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

ASTM A 924/A 924M (2008a) Standard Specification for General

Requirements for Steel Sheet, Metallic-Coated by the Hot-Dip Process

ASTM B 117 (2007a) Standing Practice for Operating Salt Spray

(Fog) Apparatus

ASTM B 152/B 152M (2006ae1) Standard Specification for Copper Sheet, Strip, Plate, and Rolled Bar

ASTM B 209 (2007) Standard Specification for Aluminum and

Aluminum-Alloy Sheet and Plate

ASTM B 280 (2008) Standard Specification for Seamless Copper

Tube for Air Conditioning and Refrigeration Field Service

ASTM B 766 (1986; R 2008) Standard Specification for

Electrodeposited Coatings of Cadmium

ASTM C 1071 (2005e1) Standard Specification for Fibrous Glass

Duct Lining Insulation (Thermal and Sound Absorbing Material)

ASTM C 553 (2008) Standard Specification for Mineral Fiber

Blanket Thermal Insulation for Commercial and Industrial Applications

SECTION 23 00 00 Page 4

ASTM C 916 (1985; R 2007) Standard Specification for Adhesives for Duct Thermal Insulation

ASTM D 1654 (2008) Evaluation of Painted or Coated Specimens

Subjected to Corrosive Environments

ASTM D 1785 (2006) Standard Specification for Poly(Vinyl

Chloride) (PVC), Plastic Pipe, Schedules 40, 80, and

ASTM D 2466 (2006) Standard Specification for Poly(Vinyl

Chloride) (PVC) Plastic Pipe Fittings, Schedule 40

ASTM D 2564 (2004e1) Standard Specification for Solvent Cements for Poly(Vinyl Chloride) (PVC) Plastic Piping Systems

ASTM D 2855 (1996; R 2002) Standard Practice for Making Solvent-

Cemented Joints with Poly(Vinyl Chloride) (PVC) Pipe and Fittings

ASTM D 3359 (2008) Measuring Adhesion by Tape Test

ASTM D 520 (2000; R 2005) Zinc Dust Pigment

ASTM E 2016 (2006) Standard Specification for Industrial Woven

Wire Cloth

ASTM E 84 (2008a) Standard Test Method for Surface Burning

Characteristics of Building Materials

ASTM F 1040 (1987; R 2007) Standard Specification for Filter

Units, Air Conditioning, Viscous - Impingement and Dry Types, Replaceable

INSTITUTE OF ENVIRONMENTAL SCIENCES AND TECHNOLOGY (IEST)

IEST RP-CC-001.3 (1993) HEPA and ULPA Filters

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

NEMA ICS 6 (1993; R 2006) Standard for Industrial Controls and

Systems Enclosures

NEMA MG 1 (2007; Errata 2008) Standard for Motors and

Generators

NEMA MG 10 (2001; R 2007) Energy Management Guide for Selection and Use of Fixed Frequency Medium AC Squirrel-Cage Polyphase Induction Motors

NEMA MG 11 (1977; R 2007) Energy Management Guide for Selection and Use of Single Phase Motors

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 70 (2007; AMD 1 2008) National Electrical Code - 2008 Edition

SECTION 23 00 00 Page 5

NFPA 90A (2008) Standard for the Installation of Air

Conditioning and Ventilating Systems

NFPA 96 (2007) Ventilation Control and Fire Protection of

Commercial Cooking Operations

SHEET METAL AND AIR CONDITIONING CONTRACTORS' NATIONAL ASSOCIATION

(SMACNA)

SMACNA 1143 (1985) HVAC Air Duct Leakage Test Manual

SMACNA 1403 (1975, 1st Ed) Accepted Industry Practice for

Industrial Duct Construction

SMACNA 1650 (1998; Addendum 2000) Seismic Restraint Manual

Guidelines for Mechanical Systems - Second Edition

SMACNA 1819 (2002, 5th Ed) Fire, Smoke and Radiation Damper

Installation Guide for HVAC Systems

SMACNA 1884 (2003) Fibrous Glass Duct Construction Standards

SMACNA 1966 (2005) HVAC Duct Construction Standards Metal and

Flexible

U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

40 CFR 82 Protection of Stratospheric Ozone

UNDERWRITERS LABORATORIES (UL)

UL 181 (2005; Rev thru Oct 2008) Standard for Factory-Made Air Ducts and Air Connectors

UL 1995 (2005) Standard for Heating and Cooling Equipment

UL 214 (1997; Rev thru Aug 2001) Tests for Flame-Propagation of Fabrics and Films

UL 555 (2006) Standard for Fire Dampers

UL 555S (1999; Rev thru Jul 2006) Smoke Dampers

UL 586 (1996; Rev thru Aug 2008) Standard for High-

Efficiency Particulate, Air Filter Units

UL 6 (2007) Standard for Electrical Rigid Metal Conduit-

Steel

UL 705 (2004; Rev thru Mar 2006) Standard for Power

Ventilators

UL 723 (2008) Standard for Test for Surface Burning

Characteristics of Building Materials

SECTION 23 00 00 Page 6

UL 900 (2004; Rev thru Nov 2007) Standard for Air Filter Units

UL 94 (1996; Rev thru Jun 2006) Tests for Flammability of

Plastic Materials for Parts in Devices and Appliances

UL Bld Mat Dir (2008) Building Materials Directory

UL Electrical (2008) Electrical Construction Equipment Director Construction

UL Fire Resistance (2008) Fire Resistance Directory

1.2 SYSTEM DESCRIPTION

Furnish ductwork, piping offsets, fittings, and accessories as required to provide a complete installation. Coordinate the work of the different trades to avoid interference between piping, equipment, structural, and electrical work. Provide complete, in place, all necessary offsets in piping and ductwork, and all fittings, and other components, required to install the work as indicated and specified.

1.2.1 Mechanical Equipment Identification

Provide chart listing of equipment by designation numbers and capacities such as flow rates, pressure and temperature differences, heating and cooling capacities, horsepower, pipe sizes, and voltage and current characteristics. Diagrams shall be neat mechanical drawings provided with extruded aluminum frames and 1/8-inch acrylic plastic protection. Location is as directed by the Contracting Officer. The number of charts and diagrams shall be equal to or greater than the number of mechanical equipment rooms. Where more than one chart per space is required, mount these in edge pivoted, swinging leaf, extruded aluminum frame holders that open to 170 degrees.

1.2.2 Service Labeling

Label equipment, including fans, air-handlers, terminal units, etc. with labels made of self-sticking, plastic film designed for permanent installation. Labels shall be in accordance with the typical examples below:

SERVICE LABEL AND TAG DESIGNATION

Air-handling unit Number AHU - _____

Control and instrument air CONTROL AND INSTR.

Exhaust Fan Number EF -

VAV Box Number VAV -

Fancoil Unit Number FC -

Terminal Box Number TB -

Unit Ventilator Number UV -

SECTION 23 00 00 Page 7

Identify similar services with different temperatures or pressures. Where pressures could exceed 125 pounds per square inch, gage, include the maximum system pressure in the label. Label and arrow piping in accordance with the following:

a. Each point of entry and exit of pipe passing through walls.

b. Each change in direction, i.e., elbows, tees.

c. In congested or hidden areas and at all access panels at each point required to clarify service or indicated hazard.

d. In long straight runs, locate labels at distances within eyesight of each other not to exceed 75 feet. All labels shall be visible and legible from the primary service and operating area.

For Bare or Insulated Pipes for Outside Diameters of Lettering

1/2 thru 1-3/8 inch 1/2 inch 1-1/2 thru 2-3/8 inch 3/4 inch 2-1/2 inch and larger 1-1/4 inch

1.2.3 Color Coding

Color coding of all piping systems shall be in accordance with ASME A13.1.

1.3 SUBMITTALS

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

submittals not having a "G" designation are for Contractor Quality Control approval 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-02 Shop Drawings

Detail Drawings; G

Drawings as specified in Paragraph Detail Drawings and throughout this Section.

SD-03 Product Data

Standard Products

Manufacturer's catalog data included with the detail drawings for the following items. Highlight the data to show model, size, options, etc., that are intended for consideration. Provide adequate data to demonstrate compliance with contract requirements for the following:

Metallic Flexible Duct Insulated Nonmetallic Flexible Duct Runouts Duct Connectors

SECTION 23 00 00 Page 8

Duct Access Doors Fire Dampers Manual Balancing Dampers Automatic Smoke-Fire Dampers Automatic Smoke Dampers Sound Attenuation Equipment Acoustical Duct Liner Diffusers Registers and Grilles Louvers Air Vents, Penthouses, and Goosenecks Centrifugal Fans In-Line Centrifugal Fans Axial Flow Fans Panel Type Power Wall Ventilators Centrifugal Type Power Wall Ventilators Centrifugal Type Power Roof Ventilators Propeller Type Power Roof Ventilators Air-Curtain Fans Ceiling Exhaust Fans Air-handling Units; G Room Fan-Coil Units; G Coil Induction Units; G Constant Volume, Single Duct Terminal Units; G Variable Volume, Single Duct Terminal Units; G Variable Volume, Single Duct, Fan-Powered Terminal Units; G Dual Duct Terminal Units; G Ceiling Induction Terminal Units; G Reheat Units; G Unit Ventilators Energy Recovery Devices; G General Purpose Single Speed Polyphase Induction Motors

Submit manufacturer documentation demonstrating that the motor meets the premium efficiency rating requirements in accordance with

NEMA MG 1.

Refrigerants;

Submit a list of supplied refrigerants and the Material Safety Data Sheets for each per Paragraph 3.6.11 of Section 01 57 20.00 10

ENVIRONMENTAL PROTECTION.

Test Procedures

Proposed test procedures and test schedules for the ductwork leak test, and performance tests of systems, at least 2 weeks prior to the start of related testing.

Diagrams; G

Proposed diagrams, at least 2 weeks prior to start of related testing. Frame under glass or laminated plastic, system diagrams that show the layout of equipment, piping, and ductwork, and typed condensed operation manuals explaining preventative maintenance procedures, methods of checking the system for normal, safe

SECTION 23 00 00 Page 9 operation, and procedures for safely starting and stopping the system. After approval, post these items where directed.

Operation and Maintenance Training

Proposed On-site Training schedule, submitted concurrently with the Operation and Maintenance Manuals.

SD-06 Test Reports

Performance Tests; G

Test reports for the ductwork leak test, and performance tests in booklet form, upon completion of testing. Document phases of tests performed including initial test summary, repairs/adjustments made, and final test results in the reports.

Damper Acceptance Test; G

Proposed schedule, at least 2 weeks prior to the start of test.

SD-07 Certificates

Bolts

Written certification from the bolt manufacturer that the bolts furnished comply with the requirements of this specification.

Include illustrations of product markings, and the number of each type of bolt to be furnished in the certification.

SD-08 Manufacturer's Instructions

Manufacturer's Installation Instructions Operation and Maintenance Training

SD-10 Operation and Maintenance Data

Operation and Maintenance Manuals

Submit one electronic (.pdf) version and 2 hard copies of manuals at least 2 weeks prior to field training. Submit data complying with the requirements specified in Section 01 78 23 0PERATION AND MAINTENANCE DATA. Submit Data Package 3 for the following:

Fire Dampers; G Manual Balancing Dampers; G Automatic Smoke-Fire Dampers; G Automatic Smoke Dampers; G Centrifugal Fans; G In-Line Centrifugal Fans; G Axial Flow Fans; G Panel Type Power Wall Ventilators; G Centrifugal Type Power Wall Ventilators; G Centrifugal Type Power Roof Ventilators; G Propeller Type Power Roof Ventilators; G Air-Curtain Fans; G Ceiling Exhaust Fans; G

SECTION 23 00 00 Page 10

Air-handling Units; G Room Fancoil Units; G Coil Induction Units; G Constant Volume, Single Duct Terminal Units; G Variable Volume, Single Duct Terminal Units; G Variable Volume, Single Duct, Fan-Powered Terminal Units; G Dual Duct Terminal Units; G Ceiling Induction Terminal Units; G Reheat Units; G Unit Ventilators; G Energy Recovery Devices; G

1.4 QUALITY ASSURANCE

Except as otherwise specified, approval of materials and equipment is based on manufacturer's published data.

a. Where materials and equipment are specified to conform to the standards of the Underwriters Laboratories, the label of or listing with reexamination in UL Bld Mat Dir, and UL 6 is acceptable as sufficient evidence that the items conform to Underwriters Laboratories requirements. In lieu of such label or listing, submit a written certificate from any nationally recognized testing agency, adequately equipped and competent to perform such services, stating that the items have been tested and that the units conform to the specified requirements. Outline methods of testing used by the specified agencies.

b. Where materials or equipment are specified to be constructed or tested, or both, in accordance with the standards of the ASTM International (ASTM), the ASME International (ASME), or other standards, a manufacturer's certificate of compliance of each item is acceptable as proof of compliance.

c. Conformance to such agency requirements does not relieve the item from compliance with other requirements of these specifications.

1.4.1 Prevention of Corrosion

Protect metallic materials against corrosion. Manufacturer shall provide rust-inhibiting treatment and standard finish for the equipment enclosures.

Do not use aluminum in contact with earth, and where connected to dissimilar metal. Protect aluminum by approved fittings, barrier material, or treatment. Ferrous parts such as anchors, bolts, braces, boxes, bodies, clamps, fittings, guards, nuts, pins, rods, shims, thimbles, washers, and miscellaneous parts not of corrosion-resistant steel or nonferrous materials shall be hot-dip galvanized in accordance with ASTM A 123/A 123M for exterior locations and cadmium-plated in conformance with ASTM B 766 for interior locations.

1.4.2 Asbestos Prohibition

Do not use asbestos and asbestos-containing products.

1.4.3 Ozone Depleting Substances Used as Refrigerants

SECTION 23 00 00 Page 11

Minimize releases of Ozone Depleting Substances (ODS) during repair, maintenance, servicing or disposal of appliances containing ODS's by complying with all applicable sections of 40 CFR 82 Part 82 Subpart F. Any person conducting repair, maintenance, servicing or disposal of appliances shall comply with the following:

a. Do not knowingly vent or otherwise release into the environment, Class I or Class II substances used as a refrigerant.

b. Do not open appliances without meeting the requirements of 40 CFR 82

Part 82.156 Subpart F, regarding required practices for evacuation and collection of refrigerant, and 40 CFR 82 Part 82.158 Subpart F, regarding standards of recycling and recovery equipment.

c. Only persons who comply with 40 CFR 82 Part 82.161 Subpart F, regarding technician certification, can conduct work on appliances containing refrigerant.

d. One copy of all certificates will be forwarded to the Pollution

Prevention Program (Building 1210) by the contracting official.

e. All ozone depleting substances are restricted on Joint Base Lewis-

McChord. Any use of such substances on Joint Base Lewis-McChord requires submission of an exemption request form and prior written approval from the Joint Base Lewis-McChord Pollution Prevention Program. The exemption form can be obtained from the Pollution Prevention Program (Building 1210, 253-966-6469).

In addition, provide 2 copies of all applicable certifications to the Contracting Officer at least 14 calendar days prior to initiating maintenance, repair, servicing, dismantling or disposal of appliances, including:

a. Proof of Technician Certification

b. Proof of Equipment Certification for recovery or recycling equipment.

c. Proof of availability of certified recovery or recycling equipment.

1.4.4 Use of Ozone Depleting Substances, Other than Refrigerants

All ozone depleting substances are restricted on Joint Base Lewis-McChord.

Any use of such substances on Joint Base Lewis-McChord requires submission of an exemption request form and prior written approval from the Joint Base Lewis-McChord Pollution Prevention Program. The exemption form can be obtained from the Pollution Prevention Program (Building 1210, 253-966- 6469). The Pollution Prevention Program will issue written approval or disapproval of the use via the Contracting Officer or their representative.

These prohibited materials and uses include:

a. Any plastic party spray streamer or noise horn that is propelled by a chlorofluorocarbon

b. Any cleaning fluid for electronic and photographic equipment that contains a chlorofluorocarbon; including liquid packaging, solvent wipes, solvent sprays, and gas sprays

SECTION 23 00 00 Page 12

c. Any plastic flexible or packaging foam product that is manufactured with or contains a chlorofluorocarbon, including, open cell foam, open cell rigid polyurethane poured foam, closed cell extruded polystyrene sheet foam, closed cell polyethylene foam and closed cell polypropylene foam except for flexible or packaging foam used in coaxial

d. Any aerosol product or other pressurized dispenser that contains a chlorofluorocarbon, except for those listed in 40 CFR 82 Part 82.66 Subpart C.

1.4.5 Detail Drawings

Submit detail drawings showing equipment layout, including assembly and installation details and electrical connection diagrams; ductwork layout showing the location of all supports and hangers, typical hanger details, gauge reinforcement, reinforcement spacing rigidity classification, and static pressure and seal classifications. Include any information required to demonstrate that the system has been coordinated and functions properly as a unit on the drawings and show equipment relationship to other parts of the work, including clearances required for operation and maintenance.

Submit drawings showing bolt-setting information, and foundation bolts prior to concrete foundation construction for all equipment indicated or required to have concrete foundations. Submit function designation of the equipment and any other requirements specified throughout this Section with the shop drawings

1.5 DELIVERY, STORAGE, AND HANDLING

Protect stored equipment at the jobsite from the weather, humidity and temperature variations, dirt and dust, or other contaminants. Additionally, cap or plug all pipes until installed.

PART 2 PRODUCTS

2.1 STANDARD PRODUCTS

Provide components and equipment that are "standard products" of a manufacturer regularly engaged in the manufacturing of products that are of a similar material, design and workmanship. "Standard products" is defined as being in satisfactory commercial or industrial use for 2 years before bid opening, including applications of components and equipment under similar circumstances and of similar size, satisfactorily completed by a product that is sold on the commercial market through advertisements, manufacturers' catalogs, or brochures. Products having less than a 2-year field service record are acceptable if a certified record of satisfactory field operation, for not less than 6000 hours exclusive of the manufacturer's factory tests, can be shown. Provide equipment items that are supported by a service organization. Where applicable, provide equipment that is an ENERGY STAR Qualified product or a Federal Energy Management Program (FEMP) designated product.

2.2 IDENTIFICATION PLATES

In addition to standard manufacturer's identification plates, provide engraved laminated phenolic identification plates for each piece of

SECTION 23 00 00 Page 13 mechanical equipment. Identification plates are to designate the function of the equipment. Submit designation with the shop drawings.

Identification plates shall be three layers, black-white-black, engraved to show white letters on black background. Letters shall be upper case.

Identification plates 1-1/2-inches high and smaller shall be 1/16-inch thick, with engraved lettering 1/8-inch high; identification plates larger than 1-1/2-inches high shall be 1/8-inch thick, with engraved lettering of suitable height. Identification plates 1-1/2-inches high and larger shall have beveled edges. Install identification plates using a compatible adhesive.

2.3 EQUIPMENT GUARDS AND ACCESS

Fully enclose or guard belts, pulleys, chains, gears, couplings, projecting setscrews, keys, and other rotating parts exposed to personnel contact according to OSHA requirements. Properly guard or cover with insulation of a type specified, high temperature equipment and piping exposed to contact by personnel or where it creates a potential fire hazard. The requirements for catwalks, operating platforms, ladders, and guardrails are specified in Section 05 50 13 MISCELLANEOUS METAL FABRICATIONS.

2.4 ELECTRICAL WORK

a. Provide motors, controllers, integral disconnects, contactors, and controls with their respective pieces of equipment, except controllers indicated as part of motor control centers. Provide electrical equipment, including motors and wiring, as specified in Section 26 20 00INTERIOR DISTRIBUTION SYSTEM. Provide manual or automatic control and protective or signal devices required for the operation specified and control wiring required for controls and devices specified, but not shown. For packaged equipment, include manufacturer provided controllers with the required monitors and timed restart.

b. For single-phase motors, provide high-efficiency type, fractional-horsepower alternating-current motors, including motors that are part of a system, in accordance with NEMA MG 11. Integral size motors shall be the premium efficiency type in accordance with NEMA

MG 1.

c. General Purpose Single Speed Polyphase Induction Motors: For polyphase motors, provide squirrel-cage medium induction motors, including motors that are part of a system, and that meet the efficiency ratings for premium efficiency motors in accordance with NEMA MG 1. Select premium efficiency polyphase motors in accordance with NEMA MG 10.

d. Provide motors in accordance with NEMA MG 1 and of sufficient size to drive the load at the specified capacity without exceeding the nameplate rating of the motor. Provide motors rated for continuous duty with the enclosure specified. Provide motor duty that allows for maximum frequency start-stop operation and minimum encountered interval between start and stop. Provide motor torque capable of accelerating the connected load within 20 seconds with 80 percent of the rated voltage maintained at motor terminals during one starting period. Provide motor starters complete with thermal overload protection and other necessary appurtenances. Fit motor bearings

SECTION 23 00 00 Page 14 with grease supply fittings and grease relief to outside of the enclosure.

e. Where two-speed or variable-speed motors are indicated, solid-state variable-speed controllers are allowed to accomplish the same function. Use solid-state variable-speed controllers for motors rated 10 hp or less and adjustable frequency drives for larger motors. Provide variable frequency drives for motors as specified in Section 26 29 23 VARIABLE FREQUENCY DRIVE SYSTEMS UNDER 600 VOLTS.

2.5 ANCHOR BOLTS

Provide anchor bolts for equipment placed on concrete equipment pads or on concrete slabs. Bolts to be of the size and number recommended by the equipment manufacturer and located by means of suitable templates.

Installation of anchor bolts shall not degrade the surrounding concrete.

2.6 SEISMIC ANCHORAGE

Anchor equipment in accordance with applicable seismic criteria for the area and as defined in SMACNA 1650

2.7 PAINTING

Paint equipment units in accordance with approved equipment manufacturer's standards unless specified otherwise. Field retouch only if approved.

Otherwise, return equipment to the factory for refinishing.

2.8 INDOOR AIR QUALITY

Provide equipment and components that comply with the requirements of ASHRAE

62.1 unless more stringent requirements are specified herein.

2.9 DUCT SYSTEMS

Duct board shall not be used.

2.9.1 Metal Ductwork

Provide metal ductwork construction, including all fittings and components that complies with SMACNA 1966 unless otherwise specified. Provide radius type elbows with a centerline radius of 1.5 times the width or diameter of the duct where space permits. Otherwise, elbows having a minimum radius equal to the width or diameter of the duct or square elbows with factory fabricated turning vanes are allowed. Provide ductwork that meets the requirements of Seal Class A. Provide ductwork in VAV systems upstream of the VAV boxes that meets the requirements of Seal Class A. Provide sealants that conform to fire hazard classification specified in Section 23 07 00 THERMAL INSULATION FOR MECHANICAL SYSTEMS and are suitable for the range of air distribution and ambient temperatures where it is exposed. Do not use pressure sensitive tape as a sealant. Make spiral lock seam duct, and flat oval with duct sealant and lock with not less than 3 equally spaced drive screws or other approved methods indicated in SMACNA 1966. Apply the sealant to the exposed male part of the fitting collar so that the sealer is on the inside of the joint and fully protected by the metal of the duct fitting. Apply one brush coat of the sealant over the outside of the joint to at least 2 inch band width covering all screw heads and joint gap. Dents

SECTION 23 00 00 Page 15 in the male portion of the slip fitting collar are not acceptable.

Fabricate outdoor air intake ducts and plenums with watertight soldered or brazed joints and seams.

2.9.1.1 Metallic Flexible Duct

a. Provide duct that conforms to UL 181 and NFPA 90A with factory-applied insulation, vapor barrier, and end connections. Provide duct assembly that does not exceed 25 for flame spread and 50 for smoke developed. Proved ducts designed for working pressures of two inches water gauge positive and 1.5 inches water gauge positive.

Provide flexible round duct length that does not exceed five feet.

Secure connections by applying adhesive for two inches over rigid duct, apply flexible duct two inches over rigid duct, apply metal clamp, and provide minimum of three No. 8 sheet metal screws through clamp and rigid duct.

b. Inner duct core: Provide interlocking spiral or helically corrugated flexible core constructed of zinc-coated steel, aluminum, or stainless steel; or constructed of inner liner of continuous galvanized spring steel wire helix fused to continuous, fire-retardant, flexible vapor barrier film, inner duct core.

c. Insulation: Provide inner duct core that is insulated with mineral fiber blanket type flexible insulation, minimum of one inch thick.

Provide insulation covered on exterior with manufacturer's standard fire retardant vapor barrier jacket for flexible round duct.

2.9.1.2 Insulated Nonmetallic Flexible Duct Runouts

Use flexible duct runouts only where indicated. Runout length is indicated on the drawings, and is not to exceed 5 feet. Provide runouts that are preinsulated, factory fabricated, and that comply with NFPA 90A and UL 181.

Provide either field or factory applied vapor barrier. Provide not less than 20 ounce glass fabric duct connectors coated on both sides with neoprene. Where coil induction or high velocity units are supplied with vertical air inlets, use a streamlined, vaned and mitered elbow transition piece for connection to the flexible duct or hose. Provide a die-stamped elbow and not a flexible connector as the last elbow to these units other than the vertical air inlet type. Insulated flexible connectors are allowed as runouts. Provide insulated material and vapor barrier that conform to the requirements of Section 23 07 00 THERMAL INSULATION FOR MECHANICAL SYSTEMS. Do not expose the insulation material surface to the air stream.

2.9.1.3 General Service Duct Connectors

Provide a flexible duct connector approximately 6 inches in width where sheet metal connections are made to fans or where ducts of dissimilar metals are connected. For round/oval ducts, secure the flexible material by stainless steel or zinc-coated, iron clinch-type draw bands. For rectangular ducts, install the flexible material locked to metal collars using normal duct construction methods. Provide a composite connector system that complies with UL 214 and is classified as "flame-retarded fabrics" in UL Bld Mat Dir.

2.9.1.4 High Temperature Service Duct Connections

SECTION 23 00 00 Page 16

Provide material that is approximately 3/32 inch thick, 35 to 40-ounce per square yard weight, plain weave fibrous glass cloth with, nickel/chrome wire reinforcement for service in excess of 1200 degrees F.

2.9.1.5 Aluminum Ducts

ASTM B 209, alloy 3003-H14 for aluminum sheet and alloy 6061-T6 or equivalent strength for aluminum connectors and bar stock.

2.9.1.6 Copper Sheets

ASTM B 152/B 152M, light cold rolled temper.

2.9.1.7 Corrosion Resisting (Stainless) Steel Sheets

ASTM A 167

2.9.2 Ductwork Accessories

2.9.2.1 Duct Access Doors

Provide hinged access doors conforming to SMACNA 1966 in ductwork and plenums where indicated and at all air flow measuring primaries, automatic dampers, fire dampers, coils, thermostats, and other apparatus requiring service and inspection in the duct system. Provide access doors upstream and downstream of air flow measuring primaries and heating and cooling coils. Provide doors that are a minimum 15 x 18 inches, unless otherwise shown. Where duct size does not accommodate this size door, make the doors as large as practicable. Equip doors 24 x 24 inches or larger with fasteners operable from inside and outside the duct. Use insulated type doors in insulated ducts.

2.9.2.2 Fire Dampers

Use 1.5 hour rated fire dampers unless otherwise indicated. Provide fire dampers that conform to the requirements of NFPA 90A and UL 555. Perform the fire damper test as outlined in NFPA 90A. Provide a pressure relief door upstream of the fire damper. If the ductwork connected to the fire damper is to be insulated then provide a factory installed pressure relief damper. Provide automatic operating fire dampers with a dynamic rating suitable for the maximum air velocity and pressure differential where it is subjected. Provide fire dampers approved for the specific application, and install according to their listing. Equip fire dampers with a steel sleeve or adequately sized frame installed in such a manner that disruption of the attached ductwork, if any, does not impair the operation of the damper.

Equip sleeves or frames with perimeter mounting angles attached on both sides of the wall or floor opening. Construct ductwork in fire-rated floor-ceiling or roof-ceiling assembly systems with air ducts that pierce the ceiling of the assemblies in conformance with UL Fire Resistance. Provide curtain type with damper blades in the air stream out of the air stream or single blade type or multi-blade type fire dampers. Install dampers that do not reduce the duct or the air transfer opening cross-sectional area.

Install dampers so that the centerline of the damper depth or thickness is located in the centerline of the wall, partition or floor slab depth or thickness. Unless otherwise indicated, comply with the installation details given in SMACNA 1819 and in manufacturer's instructions for fire dampers.

SECTION 23 00 00 Page 17

Perform acceptance testing of fire dampers according to paragraph Fire Damper Acceptance Test and NFPA 90A.

2.9.2.3 Manual Balancing Dampers

Furnish manual balancing dampers with accessible operating mechanisms. Use chromium plated operators (with all exposed edges rounded) in finished portions of the building. Provide manual volume control dampers that are operated by locking-type quadrant operators. Install dampers that are 2 gauges heavier than the duct installed. Unless otherwise indicated, provide opposed blade type multileaf dampers with maximum blade width of 12 inches.

Provide access doors or panels for all concealed damper operators and locking setscrews. Provide stand-off mounting brackets, bases, or adapters not less than the thickness of the insulation when the locking-type quadrant operators for dampers are installed on ducts to be thermally insulated, to provide clearance between the duct surface and the operator. Stand-off mounting items shall be integral with the operator or standard accessory of the damper manufacturer.

2.9.2.4 Automatic Smoke-Fire Dampers

Multiple blade type, 180 degrees F fusible fire damper link; smoke damper assembly to include pneumatically powered operator. UL 555 as a 1.5 hour rated fire damper; further qualified under UL 555S as a leakage rated damper. Provide a leakage rating under UL 555S that is no higher than Class II or III at an elevated temperature Category B (250 degrees F for 30 minutes). Ensure that pressure drop in the damper open position does not exceed 0.1 inch water gauge with average duct velocities of 2500 fpm.

2.9.2.5 Automatic Smoke Dampers

UL listed multiple blade type, supplied by smoke damper manufacturer, with pneumatic damper operator as part of assembly. Qualified under UL 555S with a leakage rating no higher than Class II or III at an elevated temperature Category B (250 degrees F for 30 minutes). Ensure that pressure drop in the damper open position does not exceed 0.1 inch water gauge with average duct velocities of 2500 fpm.

2.9.2.6 Air Deflectors and Branch Connections

Provide air deflectors at all duct mounted supply outlets, at takeoff or extension collars to supply outlets, at duct branch takeoff connections, and at 90 degree elbows, as well as at locations as indicated on the drawings or otherwise specified. Conical branch connections or 45 degree entry connections are allowed in lieu of deflectors for branch connections.

Furnish all air deflectors, except those installed in 90 degree elbows, with an approved means of adjustment. Provide easily accessible means for adjustment inside the duct or from an adjustment with sturdy lock on the face of the duct. When installed on ducts to be thermally insulated, provide external adjustments with stand-off mounting brackets, integral with the adjustment device, to provide clearance between the duct surface and the adjustment device not less than the thickness of the thermal insulation.

Provide factory-fabricated air deflectors consisting of curved turning vanes or louver blades designed to provide uniform air distribution and change of direction with minimum turbulence or pressure loss. Provide factory or field assembled air deflectors. Make adjustment from the face of the diffuser or by position adjustment and lock external to the duct. Provide

SECTION 23 00 00 Page 18 stand-off brackets on insulated ducts as described herein. Provide fixed air deflectors, also called turning vanes, in 90 degree elbows.

2.9.3 Dampers

Where outdoor air supply and exhaust air dampers are required they shall have a maximum leakage rate when tested in accordance with AMCA 500-D as required by ASHRAE 90.1 - IP, including: Maximum Damper Leakage for: 1) Climate Zones 1, 2, 6, 7, 8 the maximum damper leakage at 1.0 inch w.g. for motorized dampers is 4 cfm per sq ft of damper area and non-motorized dampers are not allowed. 2) All other Climate Zones the maximum damper leakage at 1.0 inch w.g. is 10 cfm per sq ft and for non-motorized dampers is 20 cfm per sq ft of damper area.

Dampers smaller than 24 inches in either direction may have leakage of 40 cfm per sq ft.

2.9.4 Plenums and Casings for Field-Fabricated Units

2.9.4.1 Plenum and Casings

Fabricate and erect plenums and casings as shown in SMACNA 1966, as applicable. Construct system casing of not less than 16 gauge galvanized sheet steel. Furnish cooling coil drain pans with 1 inch threaded outlet to collect condensation from the cooling coils. Fabricate drain pans from not lighter than 16 gauge steel, galvanized after fabrication or of 18 gauge corrosion-resisting sheet steel conforming to ASTM A 167, Type 304, welded and stiffened. Thermally insulate drain pans exposed to the atmosphere to prevent condensation. Coat insulation with a flame resistant waterproofing material. Provide separate drain pans for each vertical coil section, and a separate drain line for each pan. Size pans to ensure capture of entrained moisture on the downstream-air side of the coil. Seal openings in the casing, such as for piping connections, to prevent air leakage. Size the water seal for the drain to maintain a pressure of at least 2 inch water gauge greater than the maximum negative pressure in the coil space.

2.9.4.2 Casing

Terminate casings at the curb line and bolt each to the curb using galvanized angle, as indicated in SMACNA 1966.

2.9.4.3 Access Doors

Provide access doors in each section of the casing. Weld doorframes in place, gasket each door with neoprene, hinge with minimum of two brass hinges, and fasten with a minimum of two brass tension fasteners operable from inside and outside of the casing. Where possible, make doors 36 x 18 inches and locate them 18 inches above the floor. Where the space available does not accommodate doors of this size, use doors as large as the space accommodates. Swing doors so that fan suction or pressure holds doors in closed position, airtight. Provide a push-button station, located inside the casing, to stop the supply.

2.9.4.4 Factory-Fabricated Insulated Sheet Metal Panels

Factory-fabricated components are allowed for field-assembled units, provided all requirements specified for field-fabricated plenums and casings are met. Provide panels of modular design, pretested for structural

SECTION 23 00 00 Page 19 strength, thermal control, condensation control, and acoustical control.

Seal and insulate panel joints. Provide and gasket access doors to prevent air leakage. Provide panel construction that is not less than 20 gauge galvanized sheet steel, assembled with fasteners treated against corrosion.

Provide standard length panels that deflect not more than 1/2 inch under operation. Construct details, including joint sealing, not specifically covered, as indicated in SMACNA 1966. Construct the plenums and casings to withstand the specified internal pressure of the air systems.

2.9.4.5 Duct Liner

Unless otherwise specified, duct liner is not permitted.

2.9.5 Sound Attenuation Equipment

a. For systems with total pressure above 4 Inches Water Gauge: Provide sound attenuators on the discharge duct of each fan operating at a total pressure above 4 inch water gauge, and, when indicated, at the intake of each fan system. Provide sound attenuators elsewhere as indicated. Provide factory fabricated sound attenuators, tested by an independent laboratory for sound and performance characteristics.

Provide a net sound reduction as indicated. Maximum permissible pressure drop is not to exceed 0.63 inch water gauge. Construct traps to be airtight when operating under an internal static pressure of 10 inch water gauge. Provide air-side surface capable of withstanding air velocity of 10,000 fpm. Certify that the equipment can obtain the sound reduction values specified after the equipment is installed in the system and coordinated with the sound information of the system fan to be provided. Provide sound absorbing material conforming to ASTM C 1071, Type I or II. Provide sound absorbing material that meets the fire hazard rating requirements for insulation specified in Section 23 07 00 THERMAL INSULATION FOR MECHANICAL SYSTEMS. For connection to ductwork, provide a duct transition section. Factory fabricated double-walled internally insulated spiral lock seam and round duct and fittings designed for high pressure air system can be provided if complying with requirements specified for factory fabricated sound attenuators, in lieu of factory fabricated sound attenuators.

Construct the double-walled duct and fittings from an outer metal pressure shell of zinc-coated steel sheet, 1 inch thick acoustical blanket insulation, and an internal perforated zinc-coated metal liner. Provide a sufficient length of run to obtain the noise reduction coefficient specified. Certify that the sound reduction value specified can be obtained within the length of duct run provided. Provide welded or spiral lock seams on the outer sheet metal of the double-walled duct to prevent water vapor penetration.

Provide duct and fittings with an outer sheet that conforms to the metal thickness of high-pressure spiral and round ducts and fittings shown in SMACNA 1966. Provide acoustical insulation with a thermal conductivity "k" of not more than 0.27 Btu/inch/square foot/hour/degree F at 75 degrees F mean temperature. Provide an internal perforated zinc-coated metal liner that is not less than 24 gauge with perforations not larger than 1/4 inch in diameter providing a net open area not less than 10 percent of the surface.

b. For system with total pressure of 4 Inch Water Gauge and Lower: Use sound attenuators only where indicated. Provide factory fabricated

SECTION 23 00 00 Page 20 sound attenuators that are constructed of galvanized steel sheets.

Provide attenuator with outer casing that is not less than 22 gauge.

Provide fibrous glass acoustical fill. Provide net sound reduction indicated. Obtain values on a test unit not less than 24 by 24 inches outside dimensions made by a certified nationally recognized independent acoustical laboratory. Provide air flow capacity as indicated or required. Provide pressure drop through the attenuator that does not exceed the value indicated, or that is not in excess of 15 percent of the total external static pressure of the air-handling system, whichever is less. Acoustically test attenuators with metal duct inlet and outlet sections while under the rated air flow conditions. Include with the noise reduction data the effects of flanking paths and vibration transmission. Construct sound attenuators to be airtight when operating at the internal static pressure indicated or specified for the duct system, but in no case less than 2 inch water gauge.

c. For acoustical duct liner: Use fibrous glass designed exclusively for lining ductwork and conforming to the requirements of ASTM C 1071, Type I and II. Provide uniform density, graduated density, or dual density liner composition, as standard with the manufacturer.

Provide not less than 1 inch thick coated lining. Where acoustical duct liner is used, provide the thermal equivalent of the insulation specified in Section 23 07 00 THERMAL INSULATION FOR MECHANICAL SYSTEMS for liner or combination of liner and insulation applied to the exterior of the ductwork. Increase duct sizes shown to compensate for the thickness of the lining used. In lieu of sheet metal duct with field-applied acoustical lining, provide acoustically equivalent lengths of fibrous glass duct or factory fabricated double-walled internally insulated duct with perforated liner.

2.9.6 Diffusers, Registers, and Grilles

Provide factory-fabricated units of steel corrosion-resistant steel or aluminum that distribute the specified quantity of air evenly over space intended without causing noticeable drafts, air movement faster than 50 fpm in occupied zone, or dead spots anywhere in the conditioned area. Provide outlets for diffusion, spread, throw, and noise level as required for specified performance. Certify performance according to ASHRAE 70. Provide sound rated and certified inlets and outlets according to ASHRAE 70.

Provide sound power level as indicated. Provide diffusers and registers with volume damper with accessible operator, unless otherwise indicated; or if standard with the manufacturer, an automatically controlled device is acceptable. Provide opposed blade type volume dampers for all diffusers and registers, except linear slot diffusers. Provide linear slot diffusers with round or elliptical balancing dampers. Where the inlet and outlet openings are located less than 7 feet above the floor, protect them by a grille or screen according to NFPA 90A.

2.9.6.1 Diffusers

Provide diffuser types indicated. Furnish ceiling mounted units with anti-smudge devices, unless the diffuser unit minimizes ceiling smudging through design features. Provide diffusers with air deflectors of the type indicated. Provide air-handling troffers or combination light and ceiling diffusers conforming to the requirements of UL Electrical Construction for

SECTION 23 00 00 Page 21 the interchangeable use as cooled or heated air supply diffusers or return air units. Install ceiling mounted units with rims tight against ceiling.

Provide sponge rubber gaskets between ceiling and surface mounted diffusers for air leakage control. Provide suitable trim for flush mounted diffusers.

For connecting the duct to diffuser, provide duct collar that is airtight and does not interfere with volume controller. Provide return or exhaust units that are similar to supply diffusers.

2.9.6.2 Perforated Plate Diffusers

Provide adjustable one-way, two-way, three-way, or four-way air pattern controls as indicated. Provide diffuser faceplates that do not sag or deflect when operating under design conditions.

2.9.6.3 Linear Diffusers

Make joints between diffuser sections that appear as hairline cracks.

Provide alignment slots for insertion of key strips or other concealed means to align exposed butt edges of diffusers. Equip with plaster frames when mounted in plaster ceiling. Do not use screws and bolts in exposed face of frames or flanges. Metal-fill and ground smooth frames and flanges exposed below ceiling. Furnish separate pivoted or hinged adjustable air-volume-damper and separate air-deflection blades.

2.9.6.4 Security Ceiling Diffusers

Provide diffusers that are steel with faceplate, fixed diffusion louvers, with flat surface margin, and an opposed blade damper. Provide faceplate that is 14 gage minimum with 1/2 by 1/2 inch holes on 3/16 inch spacing and a minimum free area of 45 percent.

2.9.6.5 Registers and Grilles

Provide units that are four-way directional-control type, except provide return and exhaust registers that are fixed horizontal or vertical louver type similar in appearance to the supply register face.