A.01.38_JBC_RTA_SPECS_VOL3.pdf

VISITING QUARTERS & APF COMPANION

JOINT BASE CHARLESTON, SC

Solicitation Number F4199-11-P-1300

AFMC/AFPC NO: 133003

APF COMPANION PROJECT NO: DKFX 98-3011

SPECIFICATIONS VOL. 3

RTA Design Submittal October 10, 2014

AIR FORCE MATERIAL COMMAND / AIR FORCE PERSONNEL CENTER

LACKLAND AIR FORCE BASE

SAN ANTONIO, TEXAS

Submitted by:

LEE & SAKAHARA ARCHITECTS AIA, INC.

Architecture, Planning, Interiors 6280 South Valley View, Suite 116

Las Vegas, Nevada 89118 Tel: 702‐270‐6600

(THIS PAGE INTENTIONALLY LEFT BLANK)

Visiting Quarters PROJECT TABLE OF CONTENTS Charleston AFB, S. Carolina TOC - 1

PROJECT TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

01 11 00 SUMMARY OF WORK

01 14 00 WORK RESTRICTIONS

01 30 00 ADMINISTRATIVE REQUIREMENTS

01 32 01.00 10 PROJECT SCHEDULE

01 33 00 SUBMITTAL PROCEDURES

01 33 29 LEED(TM) DOCUMENTATION

01 35 26 GOVERNMENT SAFETY REQUIREMENTS

01 42 00 SOURCES FOR REFERENCE PUBLICATIONS

01 45 00.00 10 QUALITY CONTROL

01 45 00.10 10 QUALITY CONTROL SYSTEM (QCS)

01 45 35 SPECIAL INSPECTION FOR SEISMIC-RESISTING SYSTEMS

01 45 37 SPECIAL INSPECTION FOR PROGRESSIVE COLLAPSE RESISTING SYSTEMS

01 50 00 TEMPORARY CONSTRUCTION FACILITIES AND CONTROLS

01 50 10 ENVIRONMENTAL (JBC)

01 54 00 GREEN PROCUREMENT (JBC)

01 56 39 TEMPORARY TREE AND PLANT PROTECTION

01 57 20 WASTE MANAGEMENT (JBC)

01 57 23 TEMPORARY STORM WATER POLLUTION CONTROL

01 57 50 TEMPORARY ENVIRONMENTAL CONTROLS (JBC)

01 58 00 PROJECT IDENTIFICATION

01 78 00 CLOSEOUT SUBMITTALS

01 78 23 OPERATION AND MAINTENANCE DATA

01 81 19 CONSTRUCTION INDOOR AIR QUALITY (IAQ) MANAGEMENT

DIVISION 02 - EXISTING DONDITIONS

02 41 00 DEMOLITION AND DECONSTRUCTION

02 82 14.00 10 ASBESTOS HAZARD CONTROL ACTIVITIES

02 82 33.13 20 REMOVAL-CONTROL AND DISPOSAL OF PAINT WITH LEAD

DIVISION 03 - CONCRETE

03 11 18 UNDERSLAB VAPOR BARRIER

03 30 00 CAST-IN-PLACE CONCRETE

03 36 10 POLYMER MODIFIED CEMENTIITOUS SKIMCOATING OF ABRADED CONCRETE

03 36 20 CONCRETE STAINING AND SEALING

03 45 00 PRECAST ARCHITECTURAL CONCRETE

03 60 00 GROUTING

DIVISION 04 - MASONRY

04 21 13 BRICK MASONRY

04 22 00 CONCRETE UNIT MASONRY

04 72 20 PRECAST CONCRETE STONE MASONRY TRIM

DIVISION 05 - METALS

05 12 00 STRUCTURAL STEEL FRAMING

05 31 00 STEEL DECKING

05 40 00 COLD-FORMED METAL FRAMING

Charleston AFB, S. Carolina TOC - 2

05 44 00 COLD-FORMED METAL TRUSSES

05 50 00 METAL FABRICATIONS

05 51 00 METAL STAIRS

05 51 20 TRASH ENCLOSURE GATES

05 52 12 STEEL PIPE AND TUBE RAILINGS

05 73 00 DECORATIVE METAL RAILINGS

DIVISION 06 - WOOD, PLASTICS, AND COMPOSITES

06 10 53 MISCELLANEOUS ROUGH CARPENTRY

06 16 00 SHEATHING

06 20 24 INTERIOR FINISH CARPENTRY

06 22 22 EXTERIOR ARCHITECTURAL FIBER CEMENT TRIM

06 41 12 WOOD-VENEER AND PLASTIC LAMINATE FACED ARCHITECTURAL CABINETS

06 61 16 SOLID SURFACE FABRICATIONS

06 64 00 PLASTIC PANELING

06 74 13 FIBERGLASS REINFORCED GRATINGS

DIVISION 07 - THERMAL & MOISTURE PROTECTION

07 11 50 SELF ADHERED HIGH PERFORMANCE UNDERLAYMENT (SAHP)

07 19 00 WATER REPELLENTS

07 21 00 THERMAL INSULATION

07 24 19 WATER-DRAINAGE EXTERIOR INSULATION AND FINISH SYSTEM (EIFS)

07 27 29 AIR-BARRIER COATINGS

07 42 14 EXTERIOR STONE FACED ALUMINUM HONEYCOMB PANELS

07 54 23 THERMOPLASTIC POLYOLEFIN (TPO) ROOFING

07 61 20 STRUCTURAL STANDING SEAM METAL ROOF

07 62 00 SHEET METAL FLASHING AND TRIM

07 71 00 ROOF SPECIALTIES

07 71 27 BELLOWS TYPE ROOF EXPANSION JOINTS

07 72 00 ROOF ACCESSORIES

07 72 23 BOXED CORNER LOUVER PENTHOUSES

07 84 13 PENETRATION FIRESTOPPING

07 84 46 FIRE-RESISTIVE JOINT SYSTEMS

07 92 00 JOINT SEALANTS

07 95 01 EXPANSION CONTROL JOINTS

DIVISION 08 - OPENINGS

08 11 13 HOLLOW METAL DOORS AND FRAMES

08 14 16 FLUSH WOOD DOORS

08 31 13 ACCESS DOORS AND FRAMES

08 32 14 SLIDING ALUMINUM-FRAMED GLASS DOORS

08 34 73 SOUND CONTROL DOOR ASSEMBLIES

08 38 23 FOOD SERVICE TRAFFIC DOORS

08 41 13 ALUMINUM FRAMED ENTRANCES AND STOREFRONTS

08 42 29 SLIDING AUTOMATIC ALUMINUM ENTRANCES

08 51 13 ALUMINUM WINDOWS

08 71 00 DOOR HARDWARE

08 80 00 GLAZING

08 83 08 SILVERED MIRRORS

08 91 18 FIXED LOUVERS

08 95 17 ALUMINUM LAUNDRY WALL VENT CAPS

Charleston AFB, S. Carolina TOC - 3

DIVISION 09 - FINISHES

09 21 16 GYPSUM BOARD SHAFT WALL SYSTEMS

09 22 17 NON LOAD BEARING METAL FRAMING

09 22 26 CONVENTIONAL AND WALL-TO-WALL DRYWALL AND PLASTER SUSPENSION

SYSTEMS

09 24 00 PORTLAND CEMENT PLASTERING

09 29 00 GYPSUM BOARD

09 30 00 TILING

09 30 33 STONE TILING

09 51 23 ACOUSTICAL TILE CEILINGS

09 65 13 RESILIENT BASE AND ACCESSORIES

09 65 16 RECYCLED RUBBER COMPOSITE SHEET ATHLETIC FLOORING

09 68 13 TILE CARPETING

09 68 16 SHEET CARPETING

09 75 10 SOLID SURFACING WALL CLADDING

09 75 16 STONE BASE

09 91 13 EXTERIOR PAINTING

09 91 23 INTERIOR PAINTING

09 93 00 STAINING AND TRANSPARENT FINISHING

DIVISION 10 - SPECIALTIES

10 14 25 SIGNAGE

10 21 13 SOLID POLYMER TOILET COMPARTMENTS

10 22 13 WIRE MESH PARTITIONS

10 22 39 MANUALLY OPERABLE ACOUSTICAL PANEL PARTITIONS

10 26 00 WALL SURFACE PROTECTION

10 28 00 TOILET, BATH, AND LAUNDRY ACCESSORIES

10 44 13 FIRE EXTINGUISHER CABINETS

10 51 13 METAL LOCKERS

DIVISION 11 - EQUIPMENT

11 05 13 COMMON MOTOR REQUIREMENTS FOR EQUIPMENT

11 40 20 FOODSERVICE EQUIPMENT

11 52 13 PROJECTION SCREENS

DIVISION 12 - FURNISHINGS

12 36 41 NATURAL STONE SLAB COUNTERTOPS

12 36 62 SIMULATED STONE (SOLID SURFACING) COUNTERTOPS

12 48 12 ROLLUP RAIL MATS WITH BRISTLE FILAMENT

12 93 20 BICYCLE RACKS

DIVISION 14 - CONVEYING SYSTEMS

14 24 00 HYDRAULIC ELEVATORS

14 91 20 LAUNDRY FACILITY CHUTES

DIVISION 21 - FIRE SUPPRESSION

21 12 00 STANDPIPE SYSTEMS

21 13 13.00 10 WET PIPE SPRINKLER SYSTEM, FIRE PROTECTION

21 30 00 FIRE PUMPS

Charleston AFB, S. Carolina TOC - 4

DIVISION 22 - PLUMBING

22 05 13 COMMON MOTOR REQUIREMENTS FOR PLUMBING EQUIPMENT

22 05 16 EXPANSION FITTINGS AND LOOPS FOR PLUMBING PIPING

22 05 17 SLEEVES AND SLEEVE SEALS FOR PLUMBING PIPING

22 05 18 ESCUTCHEONS FOR PLUMBING PIPING

22 05 19 METERS AND GAGES FOR PLUMBING PIPING

22 05 23 GENERAL-DUTY VALVES FOR PLUMBING PIPING

22 05 29 HANGERS AND SUPPORTS FOR PLUMBING PIPING AND EQUIPMENT

22 05 48 VIBRATION AND SEISMIC CONTROLS FOR PLUMBING PIPING AND EQUIPMENT

22 05 53 IDENTIFICATION FOR PLUMBING PIPING AND EQUIPMENT

22 07 16 PLUMBING EQUIPMENT INSULATION

22 07 19 PLUMBING PIPING INSULATION

22 11 16 DOMESTIC WATER PIPING

22 11 19 DOMESTIC WATER PIPING SPECIALTIES

22 11 23 DOMESTIC WATER PUMPS

22 11 23.13 DOMESTIC-WATER PACKAGED BOOSTER PUMPS

22 12 23 FACILITY INDOOR POTABLE-WATER STORAGE TANKS

22 13 16 SANITARY WASTE AND VENT PIPING

22 13 19 SANITARY WASTE PIPING SPECIALTIES

22 14 13 FACILITY STORM DRAINAGE PIPING

22 14 23 STORM DRAINAGE PIPING SPECIALTIES

22 14 29 SUMP PUMPS

22 33 00 ELECTRIC, DOMESTIC-WATER HEATERS

22 34 00 PACKAGED DOMESTIC HOT WATER SYSTEM

22 35 00 DOMESTIC-WATER HEAT EXCHANGERS

22 41 00 RESIDENTIAL PLUMBING FIXTURES

22 45 00 EMERGENCY PLUMBING FIXTURES

DIVISION 23 - HEATING, VENTILATING AND AIR CONDITIONING

23 05 13 COMMON MOTOR REQUIREMENTS FOR HVAC EQUIPMENT

23 05 16 EXPANSION FITTINGS AND LOOPS FOR HVAC PIPING

23 05 17 SLEEVES AND SLEEVE SEALS FOR HVAC PIPING

23 05 18 ESCUTCHEONS FOR HVAC PIPING

23 05 19 METERS AND GAGES FOR HVAC PIPING

23 05 23 GENERAL-DUTY VALVES FOR HVAC PIPING

23 05 29 HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT

23 05 33 HEAT TRACING FOR HVAC PIPING

23 05 48 VIBRATION AND SEISMIC CONTROLS FOR HVAC PIPING AND EQUIPMENT

23 05 53 IDENTIFICATION FOR HVAC PIPING AND EQUIPMENT

23 05 93 TESTING, ADJUSTING, AND BALANCING FOR HVAC

23 07 00 HVAC INSULATION

23 08 00 COMMISSIONING OF HVAC SYSTEMS

23 09 20 HVAC CONTROL SYSTEM

23 11 23 FACILITY NATURAL-GAS PIPING

23 21 13 HYDRONIC PIPING

23 21 13.13 UNDERGROUND HYDRONIC PIPING

23 21 16 HYDRONIC PIPING SPECIALTIES

23 21 23 HYDRONIC PUMPS

23 25 00 HVAC WATER TREATMENT

23 31 13 METAL DUCTS

23 33 00 AIR DUCT ACCESSORIES

23 34 23 HVAC POWER VENTILATORS

23 37 13 DIFFUSERS, REGISTERS, AND GRILLES

Charleston AFB, S. Carolina TOC - 5

23 51 00 BREECHINGS, CHIMNEYS, AND STACKS

23 64 26 ROTARY-SCREW WATER CHILLERS

23 72 00 AIR-TO-AIR ENERGY RECOVERY EQUIPMENT

23 82 19 FAN COIL UNITS

DIVISION 26 - ELECTRICAL

26 05 13 MEDIUM-VOLTAGE CABLES

26 05 19 LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES

26 05 26 GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS

26 05 29 HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS

26 05 33 RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS

26 05 48 VIBRATION AND SEISMIC CONTROLS FOR ELECTRICAL SYSTEMS

26 05 53 IDENTIFICATION FOR ELECTRICAL SYSTEMS

26 13 00 MEDIUM-VOLTAGE SWITCHGEAR

26 22 00 LOW-VOLTAGE TRANSFORMERS

26 23 00 LOW-VOLTAGE SWITCHGEAR

26 24 16 PANELBOARDS

26 27 26 WIRING DEVICES

26 28 13 FUSES

26 28 16 ENCLOSED SWITCHES AND CIRCUIT BREAKERS

26 29 23 VARIABLE-FREQUENCY MOTOR CONTROLLERS

26 51 00 INTERIOR LIGHTING

26 56 00 EXTERIOR LIGHTING

DIVISION 27 - COMMUNICATIONS

27 11 00 COMMUNICATIONS EQUIPMENT ROOM FITTINGS

27 15 00 COMMUNICATIONS HORIZONTAL CABLING

DIVISION 28 - ELECTRONIC SAFETY AND SECURITY

28 13 31 TWO WIRED DOOR CHIMES

28 13 33 DOORBELL AND PHONE SIGNALERS FOR THE HEARING IMPAIRED

28 31 76 INTERIOR FIRE ALARM AND MASS NOTIFICATION SYSTEM

DIVISION 31 - EARTHWORK

31 10 00 SITE CLEARING

31 20 00 EARTH MOVING

31 31 16 SOIL TREATMENT FOR SUBTERRANEAN TERMITE CONTROL

31 50 00 EXCAVATION SUPPORT AND PROTECTION

31 62 13 CONCRETE PILES

DIVISION 32 - EXTERIOR IMPROVEMENTS

32 12 16 ASPHALT PAVING

32 13 13 CONCRETE PAVING

32 13 73 CONCRETE PAVING JOINT SEALANTS

32 14 43 CONCRETE GRID PAVEMENTS

32 17 13 PARKING BUMPERS

32 17 23 PAVEMENT MARKINGS

32 92 00 TURF AND GRASSES

32 93 00 PLANTS

DIVISION 32 - UTILITIES

Charleston AFB, S. Carolina TOC - 6

33 05 00 COMMON WORK RESULTS FOR UTILITIES

33 11 00 WATER DISTRIBUTION

33 30 00 SANITARY SEWERS

33 41 00 STORM UTILITY DRAINAGE PIPING

33 70 02 ELECTRICAL DISTRIBUTION SYSTEM, UNDERGROUND

APPENDICES

Appendix 1 - SUBMITTAL REGISTER

Appendix 2 - GEOTECHNICAL ENGINEERING REPORT: APF Companion

Appendix 3 - LIMITED ASBESTOS AND LEAD PAINT SURVEY REPORT: JBC Building 362

Appendix 4 - GEOTECHNICAL ENGINEERING REPORT: NEW VISITORS QUARTERS (VQ)

Appendix 5 – ASBESTOS, LEAD PAINT AND VISUAL HAZARDOUS MATERIALS SURVEY REPORT

Appendix 6 – EXISTING POOL DRAWINGS (FOR INFORMATION ONLY)

Appendix 7 – RICKENBACKERs SLAT WALL INFORMATION

-- End of Project Table of Contents

Visiting Quarters HYDRONIC PUMPS Charleston AFB, S. Carolina 23 21 23 - 1

SECTION 23 21 23

HYDRONIC PUMPS

PART 1 - GENERAL

1.1 REFERENCE STANDARD

US Green Building Council (USGBC) LEED For New Construction 2009 Edition

1.2 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.3 LEED Summary: Each section’s Part 1, Part 2, Part 3, such as (but not limited to) System Descriptions, Submittal Requirements, Materials and Product Requirements, Execution and Implementation, Control Measures, Inspections, shall comply with the LEED Building Design and Construction Reference Guide and requirements wherein as applicable to LEED for New Construction 2009. Refer to the LEED Building Design and Construction Reference Guide and Project Checklist for specific details pertaining to each component specified in this section.

1.4 SUMMARY

A. Section Includes:

1. Close-coupled, in-line centrifugal pumps.

2. Close-coupled, end-suction centrifugal pumps.

3. Separately coupled, base-mounted, end-suction centrifugal pumps.

1.5 DEFINITIONS

A. Buna-N: Nitrile rubber.

B. EPT: Ethylene propylene terpolymer.

1.6 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. The following shall be submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

1.7 ACTION SUBMITTALS

A. Product Data: For each type of pump. Include certified performance curves and rated capacities, operating characteristics, furnished specialties, final impeller dimensions, and accessories for each type of product indicated. Indicate pump's operating point on curves. G.

B. Shop Drawings: For each pump. G.

1. Show pump layout and connections.

2. Include setting drawings with templates for installing foundation and anchor bolts and other anchorages.

3. Include diagrams for power, signal, and control wiring.

Charleston AFB, S. Carolina 23 21 23 - 2

1.8 CLOSEOUT SUBMITTALS

A. Operation and Maintenance Data: For pumps to include in emergency, operation, and maintenance manuals. G.

1.9 MAINTENANCE MATERIAL SUBMITTALS

A. Furnish extra materials described below that match products installed and that are packaged with protective covering for storage and identified with labels describing contents. G.

1. Mechanical Seals: One mechanical seal(s) for each pump, for installation after completion of piping system flushing and cleaning.

PART 2 - PRODUCTS

2.1 CLOSE-COUPLED, IN-LINE CENTRIFUGAL PUMPS

A. Basis-of-Design Product: Subject to compliance with requirements, provide product indicated on Drawings or comparable product by one of the following:

1. Armstrong Pumps Inc.

2. Aurora Pump; Division of Pentair Pump Group.

3. Grundfos Pumps Corporation.

4. ITT Corporation; Bell & Gossett.

5. PACO Pumps.

6. Patterson Pump Co.; a subsidiary of the Gorman-Rupp Co.

7. Peerless Pump Company.

8. Thrush Company Inc.

B. Description: Factory-assembled and -tested, centrifugal, overhung-impeller, close-coupled, in-line pump as defined in HI 1.1-1.2 and HI 1.3; designed for installation with pump and motor shafts mounted horizontally or vertically.

C. Pump Construction:

1. Casing: Radially split, cast iron, with threaded gage tappings at inlet and outlet.

2. Impeller: ASTM B 584, cast bronze; statically and dynamically balanced, keyed to shaft, and secured with a locking cap screw. For constant-speed pumps, trim impeller to match specified performance.

3. Pump Shaft: Stainless steel.

4. Seal: Mechanical seal consisting of carbon rotating ring against a ceramic seat held by a stainless-steel spring, and Buna-N bellows and gasket. Include water slinger on shaft between motor and seal.

5. Pump Bearings: Permanently lubricated ball bearings .

D. Motor: Single speed and rigidly mounted to pump casing.

1. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.

Charleston AFB, S. Carolina 23 21 23 - 3

2. Comply with NEMA designation, temperature rating, service factor, and efficiency requirements for motors specified in Section 230513 "Common Motor Requirements for HVAC Equipment."

2.2 CLOSE-COUPLED, END-SUCTION CENTRIFUGAL PUMPS

A. Basis-of-Design Product: Subject to compliance with requirements, provide product indicated on Drawings or comparable product by one of the following:

1. Armstrong Pumps Inc.

2. Aurora Pump; Division of Pentair Pump Group.

3. ITT Corporation; Bell & Gossett.

4. PACO Pumps.

5. Patterson Pump Co.; a subsidiary of the Gorman-Rupp Co.

6. Peerless Pump Company.

7. Thrush Company Inc.

B. Description: Factory-assembled and -tested, centrifugal, overhung-impeller, close-coupled, end-suction pump as defined in HI 1.1-1.2 and HI 1.3; designed for installation with pump and motor shafts mounted horizontally.

C. Pump Construction:

1. Casing: Radially split, cast iron, with replaceable bronze wear rings, drain plug at bottom and air vent at top of volute, threaded gage tappings at inlet and outlet.

2. Impeller: ASTM B 584, cast bronze; statically and dynamically balanced, keyed to shaft, and secured with a locking cap screw. For constant-speed pumps, trim impeller to match specified performance.

3. Pump Shaft: Stainless steel.

4. Mechanical Seal: Carbon rotating ring against a ceramic seat held by a stainless-steel spring, and Buna-N bellows and gasket. Include water slinger on shaft between motor and seal.

5. Pump Bearings: Permanently lubricated ball bearings .

D. Motor: Single speed and rigidly mounted to pump casing with integral pump support.

1. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.

2. Comply with NEMA designation, temperature rating, service factor, and efficiency requirements for motors specified in Section 230513 "Common Motor Requirements for HVAC Equipment."

2.3 SEPARATELY COUPLED, BASE-MOUNTED, END-SUCTION CENTRIFUGAL PUMPS

A. Basis-of-Design Product: Subject to compliance with requirements, provide product indicated on Drawings or comparable product by one of the following:

1. Armstrong Pumps Inc.

2. Aurora Pump; Division of Pentair Pump Group.

3. ITT Corporation; Bell & Gossett.

4. PACO Pumps.

5. Peerless Pump Company.

Charleston AFB, S. Carolina 23 21 23 - 4

6. Thrush Company Inc.

B. Description: Factory-assembled and -tested, centrifugal, overhung-impeller, separately coupled, end-suction pump as defined in HI 1.1-1.2 and HI 1.3; designed for base mounting, with pump and motor shafts horizontal.

C. Pump Construction:

1. Casing: Radially split, cast iron, with replaceable bronze wear rings, threaded gage tappings at inlet and outlet, drain plug at bottom and air vent at top of volute.

2. Impeller: ASTM B 584, cast bronze; statically and dynamically balanced, keyed to shaft, and secured with a locking cap screw. For pumps not frequency-drive controlled, trim impeller to match specified performance.

3. Pump Shaft: Stainless steel.

4. Seal: Mechanical seal consisting of carbon rotating ring against a ceramic seat held by a stainless-steel spring, and Buna-N bellows and gasket.

5. Pump Bearings: Grease-lubricated ball bearings in cast-iron housing with grease fittings.

D. Shaft Coupling: Molded-rubber insert and interlocking spider capable of absorbing vibration. Couplings shall be drop-out type to allow disassembly and removal without removing pump shaft or motor. EPDM coupling sleeve for variable-speed applications.

E. Coupling Guard: Dual rated; ANSI B15.1, Section 8; OSHA 1910.219 approved; steel;

removable; attached to mounting frame.

F. Mounting Frame: Welded-steel frame and cross members, factory fabricated from ASTM A 36/A 36M channels and angles. Fabricate to mount pump casing, coupling guard, and motor.

G. Motor: Single speed, secured to mounting frame, with adjustable alignment.

1. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.

2. Comply with NEMA designation, temperature rating, service factor, and efficiency requirements for motors specified in Section 230513 "Common Motor Requirements for HVAC Equipment."

2.4 WET-ROTOR PUMPS

A. Basis-of-Design Product: Subject to compliance with requirements, provide product indicated on Drawings or comparable product by one of the following:

1. Armstrong Pumps Inc.

2. Grundfos Pumps Corporation.

3. ITT Corporation; Bell & Gossett.

B. Description: Factory-assembled and -tested, wet-rotor pump.

C. Pump Construction:

Charleston AFB, S. Carolina 23 21 23 - 5

1. Body: 100 percent lead-free bronze or Stainless steel .

2. Impeller: Polypropylene or Noryl.

3. Pump Shaft: Ceramic.

4. Bearings. Double-sintered carbon.

D. Motor: Single or multiple speed.

1. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.

2. Comply with NEMA designation, temperature rating, service factor, and efficiency requirements for motors specified in Section 230513 "Common Motor Requirements for HVAC Equipment."

2.5 AUTOMATIC CONDENSATE PUMP UNITS

A. Manufacturers: Subject to compliance with requirements, provide products by one of the following :

1. Beckett Corporation.

2. Hartell Pumps Div.; Milton Roy Co.

3. Little Giant Pump Co.

4. Mepco, LLC.

B. Description: Packaged units with corrosion-resistant pump, plastic tank with cover, and automatic controls. Include factory- or field-installed check valve and a 72-inch- (1800-mm-) minimum, electrical power cord with plug.

2.6 PUMP SPECIALTY FITTINGS

A. Suction Diffuser:

1. Angle pattern.

2. 175-psig (1204-kPa) pressure rating, cast or ductile-iron body and end cap, pump-inlet fitting.

3. Bronze startup and bronze or stainless-steel permanent strainers.

4. Bronze or stainless-steel straightening vanes.

5. Drain plug.

6. Factory-fabricated support.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine equipment foundations and anchor-bolt locations for compliance with requirements for installation tolerances and other conditions affecting performance of the Work.

B. Examine roughing-in for piping systems to verify actual locations of piping connections before pump installation.

Charleston AFB, S. Carolina 23 21 23 - 6

C. Examine foundations and inertia bases for suitable conditions where pumps are to be installed.

D. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 PUMP INSTALLATION

A. Install pumps to provide access for periodic maintenance including removing motors, impellers, couplings, and accessories.

B. Independently support pumps and piping so weight of piping is not supported by pumps and weight of pumps is not supported by piping.

C. Automatic Condensate Pump Units: Install units for collecting condensate and extend to open drain.

D. Equipment Mounting: Install base-mounted pumps on cast-in-place concrete equipment base(s) using restrained spring isolators . Comply with requirements for equipment bases specified in Section "Cast-in-Place Concrete." Comply with requirements for vibration isolation devices specified in Section "Vibration and Seismic Controls for HVAC Piping and Equipment."

1. Coordinate sizes and locations of concrete bases with actual equipment provided. Cast anchor-bolt inserts into bases.

2. Install dowel rods to connect concrete base to concrete floor. Unless otherwise indicated, install dowel rods on 18-inch (450-mm) centers around full perimeter of concrete base.

3. For supported equipment, install epoxy-coated anchor bolts that extend through concrete base and anchor into structural concrete floor.

4. Place and secure anchorage devices. Use setting drawings, templates, diagrams, instructions, and directions furnished with items to be embedded.

5. Install anchor bolts to elevations required for proper attachment to supported equipment.

6. Install on 4-inch- (100-mm-) high concrete base designed to withstand, without damage to equipment, seismic force required by code.

E. Equipment Mounting: Install in-line pumps with continuous-thread hanger rods and spring hangers of size required to support weight of in-line pumps.

1. Comply with requirements for seismic-restraint devices specified in Section 230548 "Vibration and Seismic Controls for HVAC Piping and Equipment."

2. Comply with requirements for hangers and supports specified in Section 230529 "Hangers and Supports for HVAC Piping and Equipment."

3.3 ALIGNMENT

A. Engage a factory-authorized service representative to perform alignment service.

B. Comply with requirements in Hydronics Institute standards for alignment of pump and motor shaft. Add shims to the motor feet and bolt motor to base frame. Do not use grout between motor feet and base frame.

Charleston AFB, S. Carolina 23 21 23 - 7

C. Comply with pump and coupling manufacturers' written instructions.

D. After alignment is correct, tighten foundation bolts evenly but not too firmly. Completely fill baseplate with nonshrink, nonmetallic grout while metal blocks and shims or wedges are in place. After grout has cured, fully tighten foundation bolts.

3.4 CONNECTIONS

A. Where installing piping adjacent to pump, allow space for service and maintenance.

B. Connect piping to pumps. Install valves that are same size as branch piping to pumps.

C. Install suction and discharge pipe sizes equal to or greater than diameter of pump nozzles.

D. Install check, shutoff, and throttling valves on discharge side of pumps.

E. Install suction diffuser and shutoff valve on suction side of base mounted pumps.

F. Install flexible connectors on suction and discharge sides of base-mounted pumps between pump casing and valves.

G. Install pressure gages on pump suction and discharge or at integral pressure-gage tapping, or install single gage with multiple-input selector valve.

H. Ground equipment according to Section "Grounding and Bonding for Electrical Systems."

I. Connect wiring according to Section "Low-Voltage Electrical Power Conductors and Cables."

3.5 STARTUP SERVICE

A. Engage a factory-authorized service representative to perform startup service.

1. Complete installation and startup checks according to manufacturer's written instructions.

2. Check piping connections for tightness.

3. Clean strainers on suction piping.

4. Perform the following startup checks for each pump before starting:

a. Verify bearing lubrication.

b. Verify that pump is free to rotate by hand and that pump for handling hot liquid is free to rotate with pump hot and cold. If pump is bound or drags, do not operate until cause of trouble is determined and corrected.

c. Verify that pump is rotating in the correct direction.

5. Prime pump by opening suction valves and closing drains, and prepare pump for operation.

6. Start motor.

7. Open discharge valve slowly.

Charleston AFB, S. Carolina 23 21 23 - 8

3.6 DEMONSTRATION

A. Engage a factory-authorized service representative to train Owner's maintenance personnel to adjust, operate, and maintain hydronic pumps.

-- End of Section --

Visiting Quarters HVAC WATER TREATMENT Charleston AFB, S. Carolina 23 25 00 - 1

SECTION 23 25 00

HVAC WATER TREATMENT

PART 1 - GENERAL

1.1 REFERENCE STANDARD

US Green Building Council (USGBC) LEED For New Construction 2009 Edition

1.2 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.3 LEED Summary: Each section’s Part 1, Part 2, Part 3, such as (but not limited to) System Descriptions, Submittal Requirements, Materials and Product Requirements, Execution and Implementation, Control Measures, Inspections, shall comply with the LEED Building Design and Construction Reference Guide and requirements wherein as applicable to LEED for New Construction 2009. Refer to the LEED Building Design and Construction Reference Guide and Project Checklist for specific details pertaining to each component specified in this section.

1.4 SUMMARY

A. This Section includes the following HVAC water-treatment systems:

1. Bypass chemical-feed equipment and controls.

2. Chemical treatment test equipment.

3. HVAC water-treatment chemicals.

1.5 DEFINITIONS

A. EEPROM: Electrically erasable, programmable read-only memory.

B. Low Voltage: As defined in NFPA 70 for circuits and equipment operating at less than 50 V or for remote-control, signaling power-limited circuits.

C. RO: Reverse osmosis.

D. TDS: Total dissolved solids.

1.6 PERFORMANCE REQUIREMENTS

A. Water quality for HVAC systems shall minimize corrosion, scale buildup, and biological growth for optimum efficiency of HVAC equipment without creating a hazard to operating personnel or the environment.

B. Base HVAC water treatment on quality of water available at Project site, HVAC system equipment material characteristics and functional performance characteristics, operating personnel capabilities, and requirements and guidelines of authorities having jurisdiction.

C. Closed hydronic systems, including hot-water heating and chilled water , shall have the following water qualities:

1. pH: Maintain a value within 9.0 to 10.5 .

2. "P" Alkalinity: Maintain a value within 100 to 500 ppm.

3. Boron: Maintain a value within 100 to 200 ppm.

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4. Chemical Oxygen Demand: Maintain a maximum value of 100 ppm.

5. Soluble Copper: Maintain a maximum value of 0.20 ppm.

6. TDS: Maintain a maximum value of 100 ppm.

7. Ammonia: Maintain a maximum value of 20 ppm.

8. Free Caustic Alkalinity: Maintain a maximum value of 20 ppm.

9. Microbiological Limits:

a. Total Aerobic Plate Count: Maintain a maximum value of 1000 organisms/ml.

b. Total Anaerobic Plate Count: Maintain a maximum value of 100 organisms/ml.

c. Nitrate Reducers: Maintain a maximum value of 100 organisms/ml.

d. Sulfate Reducers: Maintain a maximum value of 0 organisms/ml.

e. Iron Bacteria: Maintain a maximum value of 0 organisms/ml.

1.7 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. The following shall be submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

1.8 ACTION SUBMITTALS

A. Product Data: Include rated capacities, operating characteristics, furnished specialties, and accessories for the following products:

1. Bypass feeders. G.

2. Water meters. G.

3. Chemical test equipment. G.

4. Chemical material safety data sheets. G.

B. Shop Drawings: Pretreatment and chemical treatment equipment showing tanks, maintenance space required, and piping connections to HVAC systems. Include plans, elevations, sections, details, and attachments to other work. G.

1. Wiring Diagrams: Power and control wiring. G.

1.9 INFORMATIONAL SUBMITTALS

A. Field quality-control test reports.

B. Other Informational Submittals:

1. Water-Treatment Program: Written sequence of operation on an annual basis for the application equipment required to achieve water quality defined in the "Performance Requirements" Article above.

2. Water Analysis: Illustrate water quality available at Project site.

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1.10 QUALITY ASSURANCE

A. HVAC Water-Treatment Service Provider Qualifications: An experienced HVAC water-treatment service provider capable of analyzing water qualities, installing water-treatment equipment, and applying water treatment as specified in this Section.

B. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use.

1.11 MAINTENANCE SERVICE

A. Scope of Maintenance Service: Provide chemicals and service program to maintain water conditions required above to inhibit corrosion, scale formation, and biological growth for cooling, chilled-water piping, heating, hot-water piping, and equipment.

Services and chemicals shall be provided for a period of one year from date of Substantial Completion, and shall include the following:

1. Initial water analysis and HVAC water-treatment recommendations.

2. Startup assistance for Contractor to flush the systems, clean with detergents, and initially fill systems with required chemical treatment prior to operation.

3. Periodic field service and consultation.

4. Customer report charts and log sheets.

5. Laboratory technical analysis.

6. Analyses and reports of all chemical items concerning safety and compliance with government regulations.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

1. Ampion Corp.

2. Anderson Chemical Co, Inc.

3. Aqua-Chem, Inc.; Cleaver-Brooks Div.

4. Barclay Chemical Co.; Water Management, Inc.

5. Boland Trane Services

6. GE Betz.

7. GE Osmonics.

8. H-O-H Chemicals, Inc.

9. Metro Group. Inc. (The); Metropolitan Refining Div.

10. ONDEO Nalco Company.

11. Watcon, Inc.

2.2 MANUAL CHEMICAL-FEED EQUIPMENT

A. Bypass Feeders: Steel, with corrosion-resistant exterior coating, minimum 3-1/2-inch (89-mm) fill opening in the top, and NPS 3/4 (DN 20) bottom inlet and top side outlet.

Quarter turn or threaded fill cap with gasket seal and diaphragm to lock the top on the feeder when exposed to system pressure in the vessel.

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1. Capacity: 2 gal. (7.6 L) .

2. Minimum Working Pressure: 175 psig (1210 kPa) .

2.3 AUTOMATIC CHEMICAL-FEED EQUIPMENT

A. Water Meter:

1. AWWA C701, turbine-type, totalization meter.

2. Body: Bronze or Epoxy-coated cast iron.

3. Minimum Working-Pressure Rating: 150 psig (1035 kPa).

4. Maximum Pressure Loss at Design Flow: 3 psig (20 kPa).

5. Registration: Gallons (Liters) or cubic feet (cubic meters).

6. End Connections: Flanged.

7. Controls: Flow-control switch with normally open contacts; rated for maximum 10 A, 250-V ac; and that will close at adjustable increments of total flow.

2.4 CHEMICAL TREATMENT TEST EQUIPMENT

A. Test Kit: Manufacturer-recommended equipment and chemicals in a wall-mounting cabinet for testing pH, TDS, inhibitor, chloride, alkalinity, and hardness.

B. Corrosion Test-Coupon Assembly: Constructed of corrosive-resistant material, complete with piping, valves, and mild steel and copper coupons. Locate copper coupon downstream from mild steel coupon in the test-coupon assembly.

1. Two -station rack for closed-loop systems.

2.5 CHEMICALS

A. Chemicals shall be as recommended by water-treatment system manufacturer that are compatible with piping system components and connected equipment, and that can attain water quality specified in Part 1 "Performance Requirements" Article.

PART 3 - EXECUTION

3.1 WATER ANALYSIS

A. Perform an analysis of supply water to determine quality of water available at Project site.

3.2 INSTALLATION

A. Install chemical application equipment on concrete bases, level and plumb. Maintain manufacturer's recommended clearances. Arrange units so controls and devices that require servicing are accessible. Anchor chemical tanks and floor-mounting accessories to substrate.

B. Install seismic restraints for equipment and floor-mounting accessories and anchor to building structure. Refer to Section 230548 "Vibration and Seismic Controls for HVAC Piping and Equipment" for seismic restraints.

C. Install water testing equipment on wall near water chemical application equipment.

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D. Install interconnecting control wiring for chemical treatment controls and sensors.

E. Mount sensors and injectors in piping circuits.

F. Bypass Feeders: Install in closed hydronic systems, including hot-water heating and chilled water , and equipped with the following:

1. Install bypass feeder in a bypass circuit around circulating pumps, unless otherwise indicated on Drawings.

2. Install water meter in makeup water supply.

3. Install test-coupon assembly in bypass circuit around circulating pumps, unless otherwise indicated on Drawings.

4. Install full-port ball isolation valves on inlet, outlet, and drain below feeder inlet.

5. Install a swing check on inlet after the isolation valve.

3.3 CONNECTIONS

A. Piping installation requirements are specified in other Sections. Drawings indicate general arrangement of piping, fittings, and specialties.

B. Install piping adjacent to equipment to allow service and maintenance.

C. Make piping connections between HVAC water-treatment equipment and dissimilar-metal piping with dielectric fittings. Dielectric fittings are specified in Section 232113 "Hydronic Piping."

D. Install shutoff valves on HVAC water-treatment equipment inlet and outlet. Metal general-duty valves are specified in Section 230523 "General-Duty Valves for HVAC Piping."

E. Refer to Section 221119 "Domestic Water Piping Specialties" for backflow preventers required in makeup water connections to potable-water systems.

F. Confirm applicable electrical requirements in electrical Sections for connecting electrical equipment.

G. Ground equipment according to Section 260526 "Grounding and Bonding for Electrical Systems."

H. Connect wiring according to Section 260519 "Low-Voltage Electrical Power Conductors and Cables."

3.4 FIELD QUALITY CONTROL

A. Manufacturer's Field Service: Engage a factory-authorized service representative to inspect, test, and adjust components, assemblies, and equipment installations, including connections. Report results in writing.

B. Perform tests and inspections and prepare test reports.

1. Manufacturer's Field Service: Engage a factory-authorized service representative to inspect components, assemblies, and equipment installations, including connections, and to assist in testing.

C. Tests and Inspections:

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1. Inspect field-assembled components and equipment installation, including piping and electrical connections.

2. Inspect piping and equipment to determine that systems and equipment have been cleaned, flushed, and filled with water, and are fully operational before introducing chemicals for water-treatment system.

3. Place HVAC water-treatment system into operation and calibrate controls during the preliminary phase of HVAC systems' startup procedures.

4. Do not enclose, cover, or put piping into operation until it is tested and satisfactory test results are achieved.

5. Test for leaks and defects. If testing is performed in segments, submit separate report for each test, complete with diagram of portion of piping tested.

6. Leave uncovered and unconcealed new, altered, extended, and replaced water piping until it has been tested and approved. Expose work that has been covered or concealed before it has been tested and approved.

7. Cap and subject piping to static water pressure of 50 psig (345 kPa) above operating pressure, without exceeding pressure rating of piping system materials.

Isolate test source and allow test pressure to stand for four hours. Leaks and loss in test pressure constitute defects.

8. Repair leaks and defects with new materials and retest piping until no leaks exist.

D. Remove and replace malfunctioning units and retest as specified above.

E. At four -week intervals following Substantial Completion, perform separate water analyses on hydronic systems to show that automatic chemical-feed systems are maintaining water quality within performance requirements specified in this Section.

Submit written reports of water analysis advising Owner of changes necessary to adhere to Part 1 "Performance Requirements" Article.

F. Comply with ASTM D 3370 and with the following standards:

1. Silica: ASTM D 859.

2. Acidity and Alkalinity: ASTM D 1067.

3. Iron: ASTM D 1068.

4. Water Hardness: ASTM D 1126.

3.5 DEMONSTRATION

A. Engage a factory-authorized service representative to train Owner's maintenance personnel to adjust, operate, and maintain HVAC water-treatment systems and equipment. Refer to Section 017900 "Demonstration and Training."

Visiting Quarters METAL DUCTS Charleston AFB, S. Carolina 23 31 13 - 1

SECTION 23 31 13

METAL DUCTS

PART 1 - GENERAL

1.1 REFERENCE STANDARD

US Green Building Council (USGBC) LEED For New Construction 2009 Edition

1.2 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.3 LEED Summary: Each section’s Part 1, Part 2, Part 3, such as (but not limited to) System Descriptions, Submittal Requirements, Materials and Product Requirements, Execution and Implementation, Control Measures, Inspections, shall comply with the LEED Building Design and Construction Reference Guide and requirements wherein as applicable to LEED for New Construction 2009. Refer to the LEED Building Design and Construction Reference Guide and Project Checklist for specific details pertaining to each component specified in this section.

1.4 SUMMARY

A. Section Includes:

1. Single-wall rectangular ducts and fittings.

2. Single-wall round ducts and fittings.

3. Sheet metal materials.

4. Duct liner.

5. Sealants and gaskets.

6. Hangers and supports.

7. Seismic-restraint devices.

1.5 PERFORMANCE REQUIREMENTS

A. Delegated Duct Design: Duct construction, including sheet metal thicknesses, seam and joint construction, reinforcements, and hangers and supports, shall comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible, Third Edition 2005" and performance requirements and design criteria indicated in "Ductwork Schedule" on drawings.

B. Structural Performance: Duct hangers and supports and seismic restraints shall withstand the effects of gravity and seismic loads and stresses within limits and under conditions described in SMACNA's "HVAC Duct Construction Standards - Metal and Flexible" and ASCE/SEI 7.

C. Airstream Surfaces: Surfaces in contact with the airstream shall comply with requirements in ASHRAE 62.1-2004.

1.6 SUBMITTALS

A. 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.

The following shall be submitted in accordance with Section 01 33 00 SUBMITTAL

PROCEDURES:

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B. Product Data: For each type of the following products:

1. Liners and adhesives. G.

C. LEED Submittals:

1. Product Data for Prerequisite EQ 1: Documentation indicating that duct systems comply with ASHRAE 62.1-2004, Section 5 - "Systems and Equipment." G.

2. Product Data for Prerequisite EA 2: Documentation indicating that duct systems comply with ASHRAE/IESNA 90.1-2007, Section 6.4.4 - "HVAC System Construction and Insulation." G.

3. Leakage Test Report for Prerequisite EA 2: Documentation of work performed for compliance with ASHRAE/IESNA 90.1-2007, Section 6.4.4.2.2 - "Duct Leakage Tests." G.

4. Duct-Cleaning Test Report for Prerequisite EQ 1: Documentation of work performed for compliance with ASHRAE 62.1-2004, Section 7.2.4 - "Ventilation System Start-Up." G.

5. Product Data for Credit EQ 4.1: For adhesives and sealants, including printed statement of VOC content. G.

D. Shop Drawings:

1. Fabrication, assembly, and installation, including plans, elevations, sections, components, and attachments to other work. G.

2. Duct layout indicating sizes, configuration, liner material, and static-pressure classes. G.

3. Elevation of top of ducts. G.

4. Dimensions of main duct runs from building grid lines. G.

5. Fittings. G.

6. Penetrations through fire-rated and other partitions. G.

7. Equipment installation based on equipment being used on Project. G.

8. Locations for duct accessories, including dampers, turning vanes, and access doors and panels. G.

9. Access to equipment located in the attic is very important to the Owner.

Specifically, personnel access down the center of the attic space is intended to allow access to all equipment, valves, etc. Suspended piping and ductwork crossing the center of the attic shall not be installed any lower than 7 feet A.F.F.

Floor-supported piping and ductwork crossing the center of the attic shall not be installed any higher than 12 inches, and in banks of piping not wider than 18 inches. Provided with a crossover bridge per detail C1/A-564 to facilitate attic access. Contractor shall consider these requirements when preparing Shop Drawings for submittals, and shall clearly show the anticipated attic route and locations of any required crossover bridges on the submitted Shop Drawings.

E. Delegated-Design Submittal:

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1. Sheet metal thicknesses. G.

2. Joint and seam construction and sealing. G.

3. Reinforcement details and spacing. G.

4. Materials, fabrication, assembly, and spacing of hangers and supports. G.

5. Design Calculations: Calculations documenting selection of hangers and supports and seismic restraints. G.

F. Coordination Drawings: Submit for Information. Plans, drawn to scale, on which the following items are shown and coordinated with each other, using input from installers of the items involved:

1. Duct installation in congested spaces, indicating coordination with general construction, building components, and other building services. Indicate proposed changes to duct layout.

2. Suspended ceiling components.

3. Structural members to which duct will be attached.

4. Clear areas required for maintenance access.

5. Penetrations of smoke barriers and fire-rated construction.

6. Items penetrating finished ceiling including the following:

a. Lighting fixtures.

b. Air outlets and inlets.

c. Speakers.

d. Sprinklers.

e. Access panels.

G. Field quality-control reports: Submit for Information.

1.7 QUALITY ASSURANCE

A. Welding Qualifications: Qualify procedures and personnel according to the following:

1. AWS D1.1/D1.1M, "Structural Welding Code - Steel," for hangers and supports.

2. AWS D1.2/D1.2M, "Structural Welding Code - Aluminum," for aluminum supports.

3. AWS D9.1M/D9.1, "Sheet Metal Welding Code," for duct joint and seam welding.

B. ASHRAE Compliance: Applicable requirements in ASHRAE 62.1-2004, Section 5 - "Systems and Equipment" and Section 7 - "Construction and System Start-Up."

C. ASHRAE/IESNA Compliance: Applicable requirements in ASHRAE/IESNA 90.1-2007, Section 6.4.4 - "HVAC System Construction and Insulation."

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PART 2 - PRODUCTS

2.1 SINGLE-WALL RECTANGULAR DUCTS AND FITTINGS

A. General Fabrication Requirements: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible" based on indicated static-pressure class unless otherwise indicated.

B. Transverse Joints: Select joint types and fabricate according to SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Figure 2-1, "Transverse Joints," for static-pressure class, applicable sealing requirements, materials involved, duct-support intervals, and other provisions in SMACNA's "HVAC Duct Construction Standards - Metal and Flexible."

C. Longitudinal Seams: Select seam types and fabricate according to SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Figure 2-2, "Longitudinal Seams," for static-pressure class, applicable sealing requirements, materials involved, duct-support intervals, and other provisions in SMACNA's "HVAC Duct Construction Standards - Metal and Flexible."

2.2 SINGLE-WALL ROUND DUCTS AND FITTINGS

A. General Fabrication Requirements: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Chapter 3, "Round, Oval, and Flexible Duct," based on indicated static-pressure class unless otherwise indicated.

B. Transverse Joints: Select joint types and fabricate according to SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Figure 3-1, "Transverse Joints," for static-pressure class, applicable sealing requirements, materials involved, duct-support intervals, and other provisions in SMACNA's "HVAC Duct Construction Standards - Metal and Flexible."

1. Transverse Joints in Ducts Larger Than 60 Inches (1524 mm) in Diameter:

Flanged.

C. Longitudinal Seams: Select seam types and fabricate according to SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Figure 3-2, "Longitudinal Seams," for static-pressure class, applicable sealing requirements, materials involved, duct-support intervals, and other provisions in SMACNA's "HVAC Duct Construction Standards - Metal and Flexible."

1. Fabricate round ducts larger than 90 inches (2286 mm) in diameter with butt-welded longitudinal seams.

2. Fabricate flat-oval ducts larger than 72 inches (1830 mm) in width (major dimension) with butt-welded longitudinal seams.

2.3 ELBOW CONFIGURATION:

A. Rectangular Duct: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Figure 4-2, "Rectangular Elbows."

1. Radius Type RE 1 with minimum 1.5 radius-to-diameter ratio.

2. Radius Type RE 3 with minimum 1.0 radius-to-diameter ratio and two vanes.

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3. Mitered Type RE 2 with vanes complying with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Figure 4-3, "Vanes and Vane Runners," and Figure 4-4, "Vane Support in Elbows."

a. Velocity 1000 fpm or Lower: Mitered Type RE 4 without vanes.

B. Round Duct: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Figure 3-4, "Round Duct Elbows."

1. Round Elbows, 12 Inches and Smaller in Diameter: Stamped or pleated.

a. Radius-to Diameter Ratio: 1.5.

2. Round Elbows, 14 Inches and Larger in Diameter: Standing seam or Welded.

a. Radius-to Diameter Ratio: 1.5. Segments: 5.

2.4 BRANCH CONFIGURATION:

A. Rectangular Duct: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Figure 4-6, "Branch Connections."

1. Rectangular Main to Rectangular Branch: 45-degree entry.

2. Rectangular Main to Round Branch: Conical spin in.

a. Velocity 1000 fpm or Lower: 90 degree spin in.

3. Rectangular Divided Flow Branch: Radius Type 1 or Type 3 with 45-degree entry.

B. Round and Flat Oval: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Figure 3-5, "90 Degree Tees and Laterals," and Figure 3-6, "Conical Tees." Saddle taps are only permitted in existing duct.

1. Velocity 1000 fpm or Lower: 90-degree fitting or tap.

2. Velocity 1000 to 1500 fpm: Conical fitting or tap.

3. Velocity 1500 fpm or Higher: 45-degree lateral fitting.

2.5 SHEET METAL MATERIALS

A. General Material Requirements: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible" for acceptable materials, material thicknesses, and duct construction methods unless otherwise indicated. Sheet metal materials shall be free of pitting, seam marks, roller marks, stains, discolorations, and other imperfections.

B. Galvanized Sheet Steel: Comply with ASTM A 653/A 653M.

1. Galvanized Coating Designation: G90 (Z275).

2. Finishes for Surfaces Exposed to View: Mill phosphatized.

C. Carbon-Steel Sheets: Comply with ASTM A 1008/A 1008M, with oiled, matte finish for exposed ducts.

D. Stainless-Steel Sheets: Comply with ASTM A 480/A 480M, Type 304 or 316, as indicated in the "Ductwork Schedule"; cold rolled, annealed, sheet. Exposed surface finish shall be as indicated in the "Ductwork Schedule".

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E. Aluminum Sheets: Comply with ASTM B 209 (ASTM B 209M) Alloy 3003, H14 temper;

with mill finish for concealed ducts, and standard, one-side bright finish for duct surfaces exposed to view.

F. Reinforcement Shapes and Plates: ASTM A 36/A 36M, steel plates, shapes, and bars;

black and galvanized.

1. Where black- and galvanized-steel shapes and plates are used to reinforce aluminum ducts, isolate the different metals with butyl rubber, neoprene, or EPDM gasket materials.

G. Tie Rods: Galvanized steel, 1/4-inch (6-mm) minimum diameter for lengths 36 inches (900 mm) or less; 3/8-inch (10-mm) minimum diameter for lengths longer than 36 inches (900 mm).

2.6 DUCT LINER

A. Fibrous-Glass Duct Liner: Comply with ASTM C…