P1507-AMEND0003_-_1_of_5.pdf

P-1507

CONTINUATION SHEET

SECTION 00 01 15 LIST OF DRAWINGS

1.2 CONTRACT DRAWINGS

The following drawings bearing revision date 25 October 2013 are amended and supersede drawings bearing the same number and title.

NAVFAC

DRAWING NO. DWG. NO. TITLE

13053930 AE602 DOOR SCHEDULE - GROUND LEVEL

ADD Door remark 24.

13053932 AE604 DOOR SCHEDULE - SECOND & ROOF LEVELS

ADD Door remark 24.

13053933 AE610 DOOR, FRAME AND BORROWED LITE TYPES

ADD Keynote 6.

MODIFY Door type F

13054314 MH101E GROUND FLOOR PLAN – SECTOR E – DUCTWORK

REMOVE return duct and register serving 1W115 – ELEC MODIFY air quantity for return register serving 1WC05 – CORR

13054315 MH101F GROUND FLOOR PLAN – SECTOR F – DUCTWORK

REMOVE return duct and register serving 1W135 – ELEC

13054320 MH102E SECOND FLOOR PLAN – SECTOR E – DUCTWORK

REMOVE return duct and register serving 2W121 – ELEC MODIFY air quantity for return register serving 2WC06 - CORR MODIFY air quantity and runout duct size for return register serving 2WC08 – CORR

13054321 MH102F SECOND FLOOR PLAN – SECTOR F – DUCTWORK

REMOVE return duct and register serving 2W151 – ELEC ADD transfer air duct and register to serve 2W151 – ELEC REMOVE return duct and register serving 2W153 - ELEC

13054326 MP10BA BASEMENT FLOOR PLAN – SECTOR A – PIPING

ADD VRF room temperature sensor

13054329 MP10BE BASEMENT FLOOR PLAN – SECTOR E – PIPING

ADD VRF room temperature sensors REMOVE thermostat wire routed from BW105 – GAS to air terminal unit B.1.18

13054330 MP10BF BASEMENT FLOOR PLAN – SECTOR F – PIPING

ADD VRF room temperature sensor

13054332 MP101A GROUND FLOOR PLAN – SECTOR A – PIPING

ADD VRF room temperature sensors

13054333 MP101B GROUND FLOOR PLAN – SECTOR B – PIPING

ADD VRF room temperature sensors

13054336 MP101E GROUND FLOOR PLAN – SECTOR E - PIPING

ADD VRF room temperature sensors

13054337 MP101F GROUND FLOOR PLAN – SECTOR F – PIPING

ADD VRF room temperature sensors

13054338 MP102A SECOND FLOOR PLAN – SECTOR A – PIPING

ADD VRF room temperature sensors

13054339 MP102B SECOND FLOOR PLAN – SECTOR B – PIPING

ADD VRF room temperature sensors

13054340 MP102E SECOND FLOOR PLAN – SECTOR E – PIPING

ADD VRF room temperature sensors

13054341 MP102F SECOND FLOOR PLAN – SECTOR F - PIPING

ADD VRF room temperature sensors

13054346 MH405 SECOND FLOOR MECH ROOM ENL PLAN F – 3

REMOVE return duct and register serving 2W151 – ELEC ADD transfer air duct and register to serve 2W151 – ELEC ADD Keynote 14

13054350 MH409 ENLARGED DUCTWORK PLANS

REMOVE return duct and register serving 1W135 – ELEC MODIFY air quantity for return register serving 1WC03 – CORR

13054426 MI728 CONTROLS – AIR TERMINAL VALVES

ADD control points for VRF room sensors ADD control point for VRF CU alarm

13054427 MI729 CONTROLS – VARIABLE REFRIGERANT FLOW SYSTEM

MODIFY note for VRF configuration REMOVE solenoid valves at VRF AC units – typical MODIFY VRF system sequence of operation

13054438 MH803 MECHANICAL SCHEDULES

MODIFY Air Terminal Device Schedule

PROJECT TABLE OF CONTENTS

The following Specification Sections bearing revision date of 25 October 2013 are amended and supersede Specifications Sections bearing the same number and title.

DIVISION 01 – GENERAL REQUIREMENTS

Section 08 14 00.00 20 – WOOD DOORS Section 23 23 00 – REFRIGERANT PIPING Section 23 81 00 – UNITARY AIR CONDITIONING EQUIPMENT Section 26 20 00 – INTERIOR DISTRIBUTION SYSTEM

-- End of Amendment --

HEALTH CLINIC REPLACEMENT USNA ANNAPOLIS 11012

SECTION 08 14 00

WOOD DOORS

08/11

REVISED 25 OCTOBER 2013

PART 1 GENERAL

1.1 REFERENCES

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

AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

ANSI A208.1 (1999) Mat-Formed Wood Particle Board

ARCHITECTURAL WOODWORK INSTITUTE (AWI)

AWS (Edition 1) Architectural Woodwork Standards

ASTM INTERNATIONAL (ASTM)

ASTM E 152 (1981ae1) Fire Tests of Door Assemblies

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 252 (2008) Standard Methods of Fire Tests of Door Assemblies

NFPA 80 (2010; TIA 10-2) Standard for Fire Doors and Other Opening Protectives

UNDERWRITERS LABORATORIES (UL)

UL 10B (2008; Reprint Apr 2009) Fire Tests of Door Assemblies

U.S. GREEN BUILDING COUNCIL (USGBC)

LEED (2002; R 2007) Leadership in Energy and Environmental Design (tm) Green Building Rating system for New Construction (LEED-NC), Version 2009

WINDOW AND DOOR MANUFACTURERS ASSOCIATION (WDMA)

WDMA I.S. 1-A (2007) Architectural Wood Flush Doors

WDMA TM-5 (1990) Split Resistance Test Method

WDMA TM-7 (2008) Cycle Slam Test Method

WDMA TM-8 (2008) Hinge Loading Test Method

SECTION 08 14 00 Page 1

1.2 SUBMITTALS

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

submittals not having a "G" designation are for Contractor Quality Control approval. Group submittals of complementary and related products and materials as needed to represent total assemblies and facilitate concurrent coordination review. Example: Submit doors, door frames, door hardware and door operators together. The Government may withhold action on submittals requiring coordination with other submittals until related submittals are received.Submit the following in accordance with Section

01 33 00 SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Doors; G

Submit drawings or catalog data showing each type of door unit.

Drawings and data shall indicate door type and construction, sizes, thickness, methods of assembly, door louvers, and glazing.

Submit schedule with door and door frame locations identified with same numbers as shown on drawings.

SD-03 Product Data

Doors; G

Accessories

Sample warranty

Fire resistance rating; G

Recycled Content (LEED Credit MR 4); G

Product data indicating percentage by weight of post-consumer and pre-consumer recycled content for products having recycled content included in this Section. Include a statement indicating material only costs for each product having recycled content. Submit in format provided in Section 01 33 29 LEEDTM DOCUMENTATION.

Regional Materials (LEED Credit MR 5); G

Product data indicating location of material manufacturer and distance from manufacturer to Project Site for regional materials (i.e. materials that are extracted, harvested or recovered, and manufactured or processed within 500 miles (by air) of the project site. Indicate distance from point of extraction, harvest, recovery to Project Site for each raw (or recycled) material used in regionally manufactured materials included in this Section.

Indicate material only cost for each regional material included in this Section. Submit in format provided in Section 01 33 29 LEEDTM

DOCUMENTATION.

FSC Certified Wood (LEED Credit MR 7); G

Provide chain-of-custody documentation for all certified wood products. Indicate material only cost for each FSC Certified wood product included in this Section. Submit in format provided in

Section 01 33 29 LEEDTM DOCUMENTATION.

SECTION 08 14 00 Page 2

SD-04 Samples

Doors

Prior to the fabrication of wood doors, submit a sample section of each type of door which shows the stile, rail, veneer, finish, and core construction.

Door finish colors; G

Submit a minimum of three color selection samples.

SD-06 Test Reports

Split resistance

Cycle-slam

Hinge loading resistance

Submit split resistance test report for doors tested in accordance with WDMA TM-5, cycle-slam test report for doors tested in accordance with WDMA TM-7, and hinge loading resistance test report for doors tested in accordance with WDMA TM-8.

1.3 DELIVERY, STORAGE, AND HANDLING

Deliver doors to the site in an undamaged condition and protect against damage and dampness. Stack doors flat under cover. Support on blocking, a minimum of 4 inches thick, located at each end and at the midpoint of the door. Store doors in a well-ventilated building so that they will not be exposed to excessive moisture, heat, dryness, direct sunlight, or extreme changes of temperature and humidity. Do not store in a building under construction until concrete, masonry work, and plaster are dry. Replace defective or damaged doors with new ones.

1.4 WARRANTY

Warranty shall warrant doors free of defects as set forth in the door manufacturer's standard door warranty.

1.5 SUSTAINABLE DESIGN REQUIREMENTS

See Section 01 33 29 LEEDTM DOCUMENTATION for additional sustainable design and LEED requirements and definitions.

PART 2 PRODUCTS

2.1 RECYCLED CONTENT OF PRODUCTS

Provide products with recycled content so post-consumer recycled content plus one-half of pre-consumer recycled content to the greatest extent possible.

2.2 REGIONAL MATERIALS OF PRODUCTS

Raw (or recycled) materials in wood doors shall be extracted, harvested, or recovered and manufacturer or processed within 500 miles (by air) of the

SECTION 08 14 00 Page 3 project site.

2.3 FSC CERTIFIED WOOD PRODUCTS

Wood materials used for products within this Section shall be "FSC Certified" products by the Forest Stewardship Council (FSC).

2.4 DOORS

Provide doors of the types, sizes, and designs indicated and specified.

2.4.1 Flush Doors

Flush doors shall conform to WDMA I.S. 1-A. Stile edge bands of doors to receive natural finish shall be hardwood, compatible with face veneer.

Stile edge bands of doors to be painted shall be mill option specie. No visible finger joints will be accepted in stile edge bands. When used, locate finger-joints under hardware.

2.4.1.1 Interior Flush Doors

Provide either staved lumber or particleboard core, Type II flush doors conforming to WDMA I.S. 1-A with faces of premium grade red oak. Hardwood veneers shall be rotary cut book matched.

a. Conventional particleboard complying with ANSI A208.1, Grade LD-2, made with binder containing no urea-formaldehyde resin.

b. Straw-based particleboard complying with ANSI A208.1, Grade LD-2 or M-2, except for density.

c. Provide wood blocking in particleboard-core doors as needed to eliminate through-bolting hardware.

2.4.2 Composite-Type Fire Rated Doors

Doors specified or indicated to have a fire resistance rating shall conform to the requirements of UL 10B, ASTM E 152, or NFPA 252 for the class of door indicated. Affix a permanent metal label with raised or incised markings indicating testing agency's name and approved hourly fire rating to hinge edge of each door.

2.5 ACCESSORIES

2.5.1 Door Light Openings

Provide glazed openings with the manufacturer's standard wood moldings except that moldings for doors to receive natural finish shall be of the same specie and color as the face veneers. Moldings for flush doors shall be lip type. Provide glazed openings in fire-rated doors with fire rated frames. Glazing is specified in Section 08 81 00 GLAZING.

2.5.1.1 Patient Rooms

Provide GLP-4 glass panels.

2.5.2 Additional Hardware Reinforcement

Provide fire rated doors with hardware reinforcement blocking. Size of

SECTION 08 14 00 Page 4 lock blocks shall be as required to secure the hardware specified. Top, bottom and intermediate rail blocks shall measure 5 inches minimum by full core width. Reinforcement blocking shall be in compliance with the manufacturer's labeling requirements and shall not be mineral material similar to the core.

2.5.3 Door Louvers

Fabricate from wood and of sizes indicated. Louvers shall be of the manufacturer's standard design and shall transmit a minimum of 35 percent free air. Louvers shall be the slat type. Louver finish to match door.

2.6 FABRICATION

2.6.1 Marking

Each door shall bear a stamp, brand, or other identifying mark indicating quality and construction of the door.

2.6.2 Quality and Construction

Identify the standard on which the construction of the door was based.

2.6.3 Adhesives and Bonds

WDMA I.S. 1-A. Use Type II bond for interior doors. Adhesive for doors to receive a natural finish shall be nonstaining.

2.6.4 Prefitting

At the Contractor's option, doors may be provided factory pre-fit. Doors shall be sized and machined at the factory by the door manufacturer in accordance with the standards under which they are produced. The work shall include sizing, bevelling edges, mortising, and drilling for hardware and providing necessary beaded openings for glass and louvers. Provide the door manufacturer with the necessary hardware samples, and frame and hardware schedules as required to coordinate the work.

2.6.5 Finishes

2.6.5.1 Factory Finish

Provide doors finished at the factory by the door manufacturer as follows:

AWS Section 5, specification for System 11 and 12, catalyzed polyurethane.

The coating shall be premium, medium rubbed sheen, closed grain effect.

Use stain when required to produce the finish specified for color. Seal edges, cutouts, trim, and wood accessories, and apply two coats of finish compatible with the door face finish. Touch-up finishes that are scratched or marred, or where exposed fastener holes are filled, in accordance with the door manufacturer's instructions. Match color and sheen of factory finish using materials compatible for field application.

2.6.5.2 Color

Provide door finish colors as indicated on drawings.

SECTION 08 14 00 Page 5

2.7 SOURCE QUALITY CONTROL

Stiles of "B" and "C" label fire rated doors utilizing standard mortise leaf hinges shall meet the following performance criteria:

a. Split resistance: Average of ten test samples shall be not less than 500 pounds load when tested in accordance with WDMA TM-5.

b. Cycle-slam: 200,000 cycles with no loose hinge screws or other visible signs of failure when tested in accordance with the requirements of WDMA TM-7.

c. Hinge loading resistance: Average of ten test samples shall be not less than 700 pounds load when tested for direct screw withdrawal in accordance with WDMA TM-8 using a No. 12, 1 1/4 inch long, steel, fully threaded wood screw. Drill 5/32 inch pilot hole, use 1 1/2 inch opening around screw for bearing surface, and engage screw full, except for last 1/8 inch. Do not use a steel plate to reinforce screw area.

PART 3 EXECUTION

3.1 INSTALLATION

Before installation, seal top and bottom edges of doors with the approved water-resistant sealer. Seal cuts made on the job immediately after cutting using approved water-resistant sealer. Fit, trim, and hang doors with a 1/16 inch minimum, 1/8 inch maximum clearance at sides and top, and a 3/16 inch minimum, 1/4 inch maximum clearance over thresholds. Provide 3/8 inch minimum, 7/16 inch maximum clearance at bottom where no threshold occurs. Bevel edges of doors at the rate of 1/8 inch in 2 inches. Door warp shall not exceed 1/4 inch when measured in accordance with

WDMA I.S. 1-A.

3.1.1 Fire Rated Doors

Install fire rated doors in accordance with NFPA 80. Do not paint over labels.

3.2 CONSTRUCTION WASTE MANAGEMENT

Comply with the Waste Management Plan specified in Section 01 74 19 CONSTRUCTION AND DEMOLITION WASTE MANAGEMENT for additional requirements.

-- End of Section --

SECTION 08 14 00 Page 6

SECTION 23 23 00

REFRIGERANT PIPING

10/07

REVISED 25 October 2013

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.

AIR-CONDITIONING, HEATING AND REFRIGERATION INSTITUTE (AHRI)

AHRI 710 (2009) Performance Rating of Liquid-Line Driers

AHRI 720 (2002) Refrigerant Access Valves and Hose Connectors

AHRI 760 (2007) Solenoid Valves for Use With Volatile Refrigerants

AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

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

AMERICAN SOCIETY OF HEATING, REFRIGERATING AND AIR-CONDITIONING

ENGINEERS (ASHRAE)

ASHRAE 15 & 34 (2007; Std 15 Errata 2007, 2009, & Addenda a-e; Std 34 Errata 2007, 2008, Addenda a-y, aa-ae) ANSI/ASHRAE Standard 15-Safety Standard for Refrigeration Systems and ANSI/ASHRAE Standard 34-Designation and Safety Classification of Refrigerants

AMERICAN WELDING SOCIETY (AWS)

AWS A5.8/A5.8M (2011) Specification for Filler Metals for Brazing and Braze Welding

AWS BRH (2007; 5th Ed) Brazing Handbook

AWS Z49.1 (2005) Safety in Welding, Cutting and Allied Processes

ASME INTERNATIONAL (ASME)

ASME B16.22 (2001; R 2010) Standard for Wrought Copper and Copper Alloy Solder Joint Pressure

SECTION 23 23 00 Page 1

Fittings

ASME B31.1 (2010) Power Piping

ASME B31.5 (2010) Refrigeration Piping and Heat Transfer Components

ASTM INTERNATIONAL (ASTM)

ASTM A 53/A 53M (2010) Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

ASTM B 280 (2008) Standard Specification for Seamless Copper Tube for Air Conditioning and Refrigeration Field Service

ASTM B 75 (2002) Standard Specification for Seamless Copper Tube

MANUFACTURERS STANDARDIZATION SOCIETY OF THE VALVE AND FITTINGS

INDUSTRY (MSS)

MSS SP-58 (2009) Pipe Hangers and Supports - Materials, Design and Manufacture, Selection, Application, and Installation

MSS SP-69 (2003; R 2004) Standard for Pipe Hangers and Supports - Selection and Application

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

ANSI Z535.1 (2006; R 2011) American National Standard for Safety--Color Code

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

29 CFR 1910.144 Safety Color Code for Marking Physical Hazards

1.2 SUBMITTALS

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

submittals not having a "G" designation are for Contractor Quality Control approval. Submit the following in accordance with Section 01 33 00

SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Refrigerant Piping System; G

Drawings, for each ductless split system varible refrigerated flow (VRF) system, and split system at least 5 weeks prior to beginning construction, provided in adequate detail to demonstrate compliance with contract requirements. Drawings shall consist of:

a. Equipment layouts that identify assembling and installation details.

SECTION 23 23 00 Page 2

b. Piping layouts which identify all valves and fittings.

c. Plans and elevations which identify installation heights, clearances required for maintenance and operation of associate equipment.

d. Foundation drawings, bolt-setting information, and foundation bolts prior to concrete foundation construction or roof equipment support installation for all connected equipment.

e. Installation details, if piping and equipment are to be supported other than as indicated, which include loadings and type of frames, brackets, stanchions, or other supports.

Submit dimensioned shop drawings indicating piping and equipment showing both the accurately scaled piping and its relationship to space enclosure. The drawings shall utilize the building floor plans and roof plans. Provide in accordance with Section 01 33 00, "Submittal Procedures," and as modified by this section.

Illustration shall be drawn to a minimum scale of 1/4 inch = 1 foot. Drawings shall indicate actual plan dimensions and elevations above finished floor and/or grade. Provide illustrations including sections to clarify elevations of equipment, equipment connections, piping, and piping accessories.

Drawings shall conform to standard drafting industry procedures.

Replication of the Contract Drawings; marked up or otherwise, as a substitute to the requirements of this Section will not be acceptable. Include Contractors name, project title, date and phone number in title block. Coordinate piping and equipment with work of all other trades. This pre-installation planning effort shall consider and include the submitted and approved equipment manufacturer recommendations relating to pipe sizing, lift, oil return, maximum pipe lengths and pipe slopes. Include as a minimum the following:

a. Refrigerant piping; plan and vertical sections.

b. Terminal equipment.

c. Pipeline accessories and specialties; valves strainers, access points, oil traps, branch connection details, etc.

d. Air cooled condensing units.

e. Pipe penetrations through walls and floors including details for penetrations.

f. Location of concrete foundations.

g. Location of roof equipment supports and roof piping supports.

SD-03 Product Data

Refrigerant Piping System; G

Manufacturer's standard catalog data, at least 5 weeks prior to the purchase or installation of a particular component, highlighted to show material, size, options, performance charts and curves, etc. in adequate detail to demonstrate compliance with

SECTION 23 23 00 Page 3 contract requirements. Include in the data manufacturer's recommended installation instructions and procedures. Provide data for the following components as a minimum:

a. Piping and Fittings

b. Valves

c. Piping Accessories

d. Pipe Hangers, Inserts, and Supports

Refrigerant Piping Tests; G

A schedule, at least 2 weeks prior to the start of related testing, for each test. Identify the proposed date, time, and location for each test.

Demonstrations; G

A schedule, at least 2 weeks prior to the date of the proposed training course, which identifies the date, time, and location for the training.

Verify Dimensions

A letter, at least 2 weeks prior to beginning construction, including the date the site was visited, conformation of existing conditions, and any discrepancies found.

SD-06 Test Reports

Refrigerant Piping Tests

Six copies of the report in bound 8 1/2 by 11 inch booklets documenting all phases of the tests performed. The report shall include initial test summaries, all repairs/adjustments made, and the final test results.

SD-07 Certificates

Service Organization; G

A certified list of qualified permanent service organizations for support of the equipment which includes their addresses and qualifications. The service organizations shall be reasonably convenient to the equipment installation and be able to render satisfactory service to the equipment on a regular and emergency basis during the warranty period of the contract.

Manufacturer Concurrence; G

SD-10 Operation and Maintenance Data

Maintenance

Operation and Maintenance Manuals

Data Package 2 in accordance with Section 01 78 23 OPERATION AND

SECTION 23 23 00 Page 4

MAINTENANCE DATA.

Six complete copies of an operation manual in bound 8 1/2 by 11 inch booklets listing step-by-step procedures required for system startup, operation, abnormal shutdown, emergency shutdown, and normal shutdown at least 4 weeks prior to the first training course. The booklets shall include the manufacturer's name, model number, and parts list. The manuals shall include the manufacturer's name, model number, service manual, and a brief description of all equipment and their basic operating features.

Six complete copies of maintenance manual in bound 8 1/2 x 11 inch booklets listing routine maintenance procedures, possible breakdowns and repairs, and a trouble shooting guide. The manuals shall include piping layouts and simplified wiring and control diagrams of the system as installed.

1.3 QUALITY ASSURANCE

1.3.1 Verification of Dimensions

The Contractor shall become familiar with all details of the work, verify all dimensions in the field, and shall advise the Contracting Officer of any discrepancy before performing the work.

1.3.2 Contract Drawings

Because of the small scale of the drawings, it is not possible to indicate all offsets, fittings, and accessories that may be required. Carefully investigate the plumbing, fire protection, electrical, structural and finish conditions that would affect the work to be performed and arrange such work accordingly, furnishing required offsets, fittings, and accessories to meet such conditions.

1.4 DELIVERY, STORAGE, AND HANDLING

Equipment shall be delivered and stored with protective crating and weatherproof wrapping to provide protection from the weather, humidity and temperature variations, dirt and dust, or other contaminants. Proper protection and care of all material both before and during installation shall be the Contractor's responsibility. Any materials found to be damaged shall be replaced at the Contractor's expense. During installation, cap piping and similar openings to keep out dirt and other foreign matter. Any porous materials found to be contaminated with mold or mildew will be replaced at the Contractor's expense. Non-porous materials found to be contaminated with mold or mildew will be disinfected and cleaned prior to installation.

1.5 MAINTENANCE

1.5.1 General

Operation and maintenance data shall comply with the requirements of Section 01 78 23 OPERATION AND MAINTENANCE DATA and as specified herein.

1.5.2 Extra Materials

Submit spare parts data for each different item of equipment specified, after approval of detail drawings and not later than 2 months prior to the

SECTION 23 23 00 Page 5 date of beneficial occupancy. The data shall include a complete list of parts and supplies, with current unit prices and source of supply, a recommended spare parts list for 1 year of operation, and a list of the parts recommended by the manufacturer to be replaced on a routine basis.

PART 2 PRODUCTS

2.1 STANDARD COMMERCIAL PRODUCTS

a. Provide materials and equipment which are standard products of a manufacturer regularly engaged in the manufacturing of such products, that are of a similar material, design and workmanship and that have been in satisfactory commercial or industrial use for 2 years prior to bid opening.

b. The 2 year use shall include applications of equipment and materials under similar circumstances and of similar size. The 2 years experience shall be satisfactorily completed by a product which has been sold or is offered for sale on the commercial market through advertisements, manufacturer's catalogs, or brochures. Products having less than a 2 year field service record will be 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.

c. Products shall be supported by a service organization. System components shall be environmentally suitable for the indicated locations.

d. Exposed equipment moving parts, parts that produce high operating temperature, parts which may be electrically energized, and parts that may be a hazard to operating personnel shall be insulated, fully enclosed, guarded, or fitted with other types of safety devices. Install safety devices so that proper operation of equipment is not impaired. Welding and cutting safety requirements shall be in accordance with AWS Z49.1.

2.2 ELECTRICAL WORK

Electrical equipment and wiring shall be in accordance with Section 26 20 00 INTERIOR DISTRIBUTION SYSTEM. Field wiring shall be in accordance with manufacturer's instructions. Manual or automatic control and protective or signal devices required for the operation specified and any control wiring required for controls and devices specified, but not shown, shall be provided.

2.3 REFRIGERANT PIPING SYSTEM

Refrigerant piping, valves, fittings, and accessories shall be in accordance with ASHRAE 15 & 34 and ASME B31.5, except as specified herein.

Refrigerant piping, valves, fittings, and accessories shall be compatible with the fluids used and capable of withstanding the pressures and temperatures of the service. Refrigerant piping, valves, and accessories used for refrigerant service shall be cleaned, dehydrated, and sealed (capped or plugged) prior to shipment from the manufacturer's plant.

SECTION 23 23 00 Page 6

2.4 PIPE, FITTINGS AND END CONNECTIONS (JOINTS)

2.4.1 Copper Tubing

Copper tubing shall conform to ASTM B 280 annealed or hard drawn as required. Unless noted otherwise, copper tubing shall be soft annealed where bending is required and hard drawn. where no bending is required.

Soft annealed copper tubing shall not be used in sizes larger than 1-3/8 inches. Joints shall be brazed. Wrought copper and bronze solder-joint brazed-joint pressure fittings shall conform to ASME B16.22 and ASTM B 75.

Joints and fittings for brazed joint shall be wrought-copper or forged-brass sweat fittings. Cast sweat-type joints and fittings shall not be allowed for brazed joints. Brass or bronze adapters for brazed tubing may be used for connecting tubing to flanges. and to threaded ends of valves and equipment. Final connections to equipment shall be soldered or threaded brazed.

2.4.2 Solder

Solder shall conform to ASTM B 32, grade Sb5, tin-antimony alloy for service pressures up to 150 psig. Solder flux shall be liquid or paste form, non-corrosive and conform to ASTM B 813.

2.4.2 Brazing Filler Metal

Filler metal shall conform to AWS A5.8/A5.8M, Type BAg-5 with AWS Type 3 flux, except Type BCuP-5 or BCuP-6 may be used for brazing copper-to-copper joints.

2.4.3 Manifold Fittings

For VRF Systems, provide fittings to enable connecting each indoor unit to the piping system. Fittings shall be furnished by the manufacturer of the VRF Equipment.

2.5 VALVES

Valves shall be designed, manufactured, and tested specifically for refrigerant service. Valve bodies shall be of brass or bronze construction. Valves shall have brazed connections. Threaded end connections shall not be used, except in pilot pressure or gauge lines where maintenance disassembly is required and soldered connections cannot be used. Internal parts shall be removable for inspection or replacement without applying heat or breaking pipe connections. Valve stems exposed to the atmosphere shall be stainless steel or corrosion resistant metal plated carbon steel. Direction of flow shall be legibly and permanently indicated on the valve body. Purge, charge and receiver valves shall be of manufacturer's standard configuration.

2.5.1 Refrigerant Stop Valves

Valve shall be the globe or full-port ball type with a back-seating stem especially packed for refrigerant service. Valve packing shall be replaceable under line pressure. Valve shall be provided with a wrench operator and a seal cap. Valve shall be the straight or angle pattern design as indicated.

SECTION 23 23 00 Page 7

2.5.2 Check Valves

Valve shall be the swing or lift type as required to provide positive shutoff at the differential pressure indicated. Valve shall be provide with resilient seat.

2.5.3 Liquid Solenoid Valves

Valves shall comply with AHRI 760 and be suitable for continuous duty with applied voltages 15 percent under and 5 percent over nominal rated voltage at maximum and minimum encountered pressure and temperature service conditions. Valves shall be direct-acting type, packless, except that packed stem, seal capped, manual lifting provisions shall be furnished.

Solenoid coils shall be moisture-proof, UL approved, totally encapsulated or encapsulated and metal jacketed as required. Valves shall have safe working pressure of 400 psi and a maximum operating pressure differential of at least 200 psi at 85 percent rated voltage. Valves shall have an operating pressure differential suitable for the refrigerant used.

2.5.4 Refrigerant Access Valves

Refrigerant access valves and hose connections shall be in accordance with

AHRI 720.

2.6 PIPING ACCESSORIES

2.6.1 Filter Driers

Driers shall conform to AHRI 710 and as modified by this section. Sizes 5/8 inch and larger shall be the full flow, replaceable core type. Sizes 1/2 inch and smaller shall be the sealed type. Cores shall be of suitable desiccant that will not plug, cake, dust, channel, or break down, and shall remove water, acid, and foreign material from the refrigerant. Filter driers shall be constructed so that none of the desiccant will pass into the refrigerant lines. Minimum bursting pressure shall be 1,500 psi.

Provide valved bypass around each filter dryer with dryer shutoff valve to enable replacement.

2.6.2 Sight Glass and Liquid Level Indicator

2.6.2.1 Assembly and Components

Assembly shall be pressure- and temperature-rated and constructed of materials suitable for the service. Glass shall be borosilicate type.

Ferrous components subject to condensation shall be electro-galvanized.

2.6.2.2 Bull's-Eye and Inline Sight Glass Reflex Lens

Bull's-eye and inline sight glass reflex lens shall be provided where indicated for dead-end liquid service. For pipe line mounting, two plain lenses in one body suitable for backlighted viewing shall be provided.

Body shall be forged brass or bronze.

2.6.2.4 Moisture Indicator

Indicator shall be a self-reversible action, moisture reactive, color changing media. Indicator shall be furnished with full-color-printing tag containing color, moisture and temperature criteria. Unless otherwise indicated, the moisture indicator shall be an integral part of each

SECTION 23 23 00 Page 8 corresponding sight glass.

2.6.3 Pipe Hangers, Inserts, and Supports

Pipe hangers, inserts, guides, and supports shall conform to MSS SP-58 and MSS SP-69. Hangers for copper piping shall be copper-clad or incude felt-lined steel compression bushings.

2.6.4 Escutcheons

Escutcheons shall be chromium-plated brass, either one piece or split pattern, held in place by internal spring tension or set screws.

2.7 IDENTIFICATION MATERIALS

General: Provide manufacturer's standard products of categories and types required for each application. Where more than single type is specified for application, selection is Installer's option, but provide single selection for each product category.

2.7.1 Plastic Pipe Markers

Provide snap-on or adhesive type pipe markers with nomenclature that closely matches contract drawings. Comply with designations indicated on contract drawings for piping system nomenclature and abbreviate only as necessary for each application length. Print each pipe marker with arrows indicating direction of flow, either integrally with piping system service lettering (to accommodate both directions), or as a separate unit of plastic.

a. Snap-On Type: Provide manufacturer's standard pre-printed, semi-rigid snap-on, color-coded pipe markers, complying with .

b. Pressure-Sensitive Type: Provide manufacturer's standard pre-printed, permanent adhesive, color-coded, pressure-sensitive vinyl pipe markers, complying with ANSI/ASME A13.1.

c. Application: For exterior diameters greater than 2 inch (including insulation if any), provide continuous directional flow arrow tape around pipe circumference; two places, before and after pipe marker. Provide adhesive plastic pipe markers. For external diameters less than 2 inch(including insulation if any), provide full-band pipe markers, extending 360 degrees around pipe at each location, fastened by one of the following methods:

(1) Snap-on application of pre-tensioned semi-rigid plastic pipe marker.

(2) Adhesive lap joint in pipe marker overlap.

(3) Laminated or bonded application of pipe marker to pipe (or insulation).

2.7.2 Color Coding

Color code marking shall be of the color listed in Table I and the side listed in Table II. The arrows shall be installed adjacent to each band to indicate the direction of flow in the pipe. The legends shall be printed in upper-case black letters as listed in Table I. Letter sizes shall be as listed in Table II. Marking shall be painted or applied using colored, pressure-sensitive adhesive markers of standard manufacturer. Paint shall

SECTION 23 23 00 Page 9 be as specified for insulated and uninsulated piping.

TABLE I COLOR CODES FOR MARKING PIPE

Letters and Materials

Band Arrow Legend

Refrigerant suction

Yellow Black RS

Refrigerant liquid Yellow Black RL

Refrigerant hot gas

Yellow Black HG

Refrigerant vent Yellow Black Vent

TABLE II COLOR CODES FOR MARKING PIPE

Outside Diameter of Pipe Covering (in)

Width of Color Band (in)

Arrow Length x Width (in)

Size of Legend Letters and Numerals (in)

Less than 38 8 8 x 2 1/2

2.7.3 Valve Tags

Provide 19-gage polished brass valve tags with stamp-engraved piping system abbreviation in 1/4 inch high letters and sequenced valve numbers 1/2 inch high, and with hole for fastener, or engraved plastic laminate valve tags, with piping system abbreviation in 1/4 inch high letters and sequenced valve numbers 1/2 inch high, and with hole for fastener. Provide manufacturer's standard solid brass chain (wire link or beaded type), or solid brass S-hooks of the sizes required for proper attachment of tags to valves, and manufactured specifically for that purpose. Compile valve schedule for each service. For each page of valve schedule, provide laminated plastic coated cardboard stock sheets.

a. Provide 1-1/2 inch diameter tags, except as otherwise indicated.

b. Provide size and shape as specified or scheduled for each piping system.

c. Fill tag engraving with black enamel.

2.7.4 Engraved Plastic Laminate Signs

Provide engraving stock melamine plastic laminate, in the sizes and thicknesses indicated, engraved with engraver's standard letter style of the sizes and wording indicated, black with white core (letter color) except as otherwise indicated, punched for mechanical fastening except where adhesive mounting is necessary because of substrate. Fasteners:

Self-tapping stainless steel screws, except contact-type permanent adhesive where screws cannot or should not penetrate the substrate.

SECTION 23 23 00 Page 10

2.7.5 Plastic Equipment Markers

Provide manufacturer's standard laminated plastic, color coded equipment markers. Include terminology matching equipment schedules as closely as possible. Provide approximate 2 inch x 4 inch markers for control devices, and 4 inch x 6 inch for equipment. Identify equipment and electrical devices furnished under this section.

2.7.6 Plasticized Tags

Provide pre-printed or partially pre-printed accident-prevention tags, of plasticized card stock with matt finish suitable for writing, approximately 3 inch x 6 inch with brass grommets and wire fasteners, and with appropriate pre-printed wording including large-size primary wording (as examples; DANGER, CAUTION, DO NOT OPERATE).

2.7.7 Lettering and Graphics

Coordinate names, abbreviations and other designations used in mechanical identification work, with corresponding designations shown, specified or scheduled. Provide numbers, lettering and wording as indicated or, if not otherwise indicated, as recommended by manufacturers or as required for proper identification and operation/maintenance of mechanical systems and equipment. Where multiple systems of same generic name are shown and specified, provide identification which indicates individual system number as well as service (as examples; Condensing Unit No. 2, Fan Coil Unit No.

1, Evaporator 3.1.

PART 3 EXECUTION

3.1 EXAMINATION

After becoming familiar with all details of the work, verify dimensions in the field, and advise the Contracting Officer of any discrepancy before performing any work.

3.2 INSTALLATION

Pipe and fitting installation shall conform to the requirements of ASME B31.1. Pipe shall be cut accurately to measurements established at the jobsite, and worked into place without springing or forcing, completely clearing all windows, doors, and other openings. Cutting or other weakening of the building structure to facilitate piping installation will not be permitted without written approval. Pipe or tubing shall be cut square, shall have burrs removed by reaming, and shall permit free expansion and contraction without causing damage to the building structure, pipe, joints, or hangers. Provide pipe and fittings for each split-refrigeration system, variable flow refrigerant system, and each chiller refrigerate vent system.

3.2.1 Directional Changes

Changes in direction shall be made with fittings, except that bending of pipe 4 inches and smaller will be permitted, provided a pipe bender is used and wide sweep bends are formed. Mitering or notching pipe or other similar construction to form elbows or tees will not be permitted. The centerline radius of bends shall not be less than 6 diameters of the pipe.

Bent pipe showing kinks, wrinkles, flattening, or other malformations will not be accepted.

SECTION 23 23 00 Page 11

3.2.2 Functional Requirements

Piping shall be installed with a slope of 1/2 inch per 10 feet of pipe in the direction of flow to ensure adequate oil drainage. , and for VRF Systems, in strict accordance with the manufacturer recommendations. Open ends of refrigerant lines or equipment shall be properly capped or plugged during installation to keep moisture, dirt, or other foreign material out of the system. Piping shall remain capped until installation. Equipment piping shall be in accordance with the equipment manufacturer's recommendations and the contract drawings. Equipment and piping arrangements shall fit into space allotted and allow adequate clearances for installation, replacement, entry, servicing, and maintenance.

3.2.3 Fittings and End Connections

3.2.3.1 Threaded Connections

Threaded connections shall be made with tapered threads and made tight with PTFE tape complying with ASTM D 3308 or equivalent thread-joint compound applied to the male threads only. Not more than three threads shall show after the joint is made.

3.2.3.1 Brazed Connections

Brazing shall be performed in accordance with AWS BRH, except as modified herein. During brazing, the pipe and fittings shall be filled with a pressure regulated inert gas, such as nitrogen, to prevent the formation of scale. Before brazing copper joints, both the outside of the tube and the inside of the fitting shall be cleaned with a wire fitting brush until the entire joint surface is bright and clean. Brazing flux shall not be used.

Surplus brazing material shall be removed at all joints. Tubing shall be protected against oxidation during brazing by continuous purging of the inside of the piping using nitrogen. Piping shall be supported prior to brazing and not be sprung or forced.

3.2.4 Valves

3.2.4.1 General

Refrigerant stop valves shall be installed on each side of each piece of equipment such as compressors, condensing units, evaporators, receivers, and other similar items in multiple-unit installation, to provide partial system isolation as required for maintenance or repair. Stop valves shall be installed with stems horizontal unless otherwise indicated. Ball valves shall be installed with stems positioned to facilitate operation and maintenance. Isolating valves for pressure gauges and switches shall be external to thermal insulation. Safety switches shall not be fitted with isolation valves. Filter dryers having access ports may be considered a point of isolation. Purge valves shall be provided at all points of systems where accumulated noncondensible gases would prevent proper system operation. Valves shall be furnished to match line size, unless otherwise indicated or approved.

3.2.5 Filter Dryer

A liquid line filter dryer shall be provided on each refrigerant circuit located such that all liquid refrigerant passes through a filter dryer.

Dryers shall be full refrigerant liquid line size. Dryers shall be

SECTION 23 23 00 Page 12 installed with valve bypass such that it can be isolated from the system, the isolated portion of the system evacuated, and the filter dryer replaced. Dryers shall be installed in the horizontal position except replaceable core filter dryers may be installed in the vertical position with the access flange on the bottom.

3.2.6 Sight Glass

A moisture indicating sight glass shall be installed in all refrigerant circuits down stream of all filter dryers and where indicated. Site glasses shall be full line size.

3.2.7 Access Fittings

Provide Schraeder access fittings at locations indicated.

3.2.8 Pipe Hangers, Inserts, and Supports

Pipe hangers, inserts, and supports shall conform to MSS SP-58 and MSS SP-69, except as modified herein. Pipe hanger types 5, 12, and 26 shall not be used. Hangers used to support piping 2 inches and larger shall be fabricated to permit adequate adjustment after erection while still supporting the load. Piping subjected to vertical movement, when operating temperatures exceed ambient temperatures, shall be supported by variable spring hangers and supports or by constant support hangers. Provide dielectric isolations between ferrous and copper materials at each support and hanger location consisting of either copper-clad hanger and support materials or factory fabricated felt lined galvanized steel mechanical compression bushings.

3.2.8.1 Hangers

Type 3 shall not be used on insulated piping.

3.2.8.2 Inserts

Type 18 inserts shall be secured to concrete forms before concrete is placed. Continuous inserts which allow more adjustments may be used if they otherwise meet the requirements for Type 18 inserts.

3.2.8.3 C-Clamps

Type 19 and 23 C-clamps shall be torqued in accordance with MSS SP-69 and have both locknuts and retaining devices, furnished by the manufacturer.

Field-fabricated C-clamp bodies or retaining devices are not acceptable.

3.2.8.4 Angle Attachments

Type 20 attachments used on angles and channels shall be furnished with an added malleable-iron heel plate or adapter.

3.2.8.5 Horizontal Pipe Supports

Horizontal pipe supports shall be spaced as specified in MSS SP-69 and a support shall be installed not over 1 foot from the pipe fitting joint at each change in direction of the piping. Pipe supports shall be spaced not over 5 feet apart at valves. Pipe hanger loads suspended from steel joist with hanger loads between panel points in excess of 50 pounds shall have the excess hanger loads suspended from panel points.

SECTION 23 23 00 Page 13

3.2.8.6 Vertical Pipe Supports

Vertical pipe shall be supported at each floor, except at slab-on-grade, and at intervals of not more than 15 feet not more than 8 feet from end of risers, and at vent terminations.

3.2.8.7 Pipe Guides

Type 35 guides using, steel, reinforced polytetrafluoroethylene (PTFE) or graphite slides shall be provided where required to allow longitudinal pipe movement. Lateral restraints shall be provided as required. Slide materials shall be suitable for the system operating temperatures, atmospheric conditions, and bearing loads encountered.

3.2.8.8 Multiple Pipe Runs

In the support of multiple pipe runs on a common base member, a clip or clamp shall be used where each pipe crosses the base support member.

Spacing of the base support members shall not exceed the hanger and support spacing required for an individual pipe in the multiple pipe run.

3.2.8.9 Structural Attachments

Attachment to building structure concrete and masonry shall be by cast-in concrete inserts, built-in anchors, or masonry anchor devices. Inserts and anchors shall be applied with a safety factor not less than 5. Supports shall not be attached to metal decking. Masonry anchors for overhead applications shall be constructed of ferrous materials only. Structural steel brackets required to support piping, headers, and equipment, but not shown, shall be provided under this section. Material used for support shall be as specified under Section 05 12 00 STRUCTURAL STEEL.

3.2.9 Building Surface Penetrations

Unless otherwise indicated, provide pipes passing through concrete and masonry walls, and concrete floors with pipe sleeves fitted into place at the time of construction. Sleeves shall be fabricated of black steel pipe;

ASTM A 53/A 53M, Standard weight. Extend each sleeve through its respective wall or floor and cut flush with each surface, except in floors;

extend sleeves above slab at least 2 inches. Unless indicated to be equipped with a modular mechanical sealing assembly, or otherwise indicated on Contract Drawings, provide sleeves large enough to provide a minimum clearance of 1/4 inch all around the pipe/insulation penetrating the sleeve. For insulated piping, insulation shall be continuous through the sleeve and penetration. Do not install sleeves in structural members except where indicated or approved. Sleeves in interior gypboard partitions are generally not required unless specifically indicated on the Architectural Drawing partition details.

3.2.9.1 Fire-Rated/Smoke-Rated Penetrations

Details are indicated on the Architectural Drawings indicating conditions for penetrations through fire and smoke rate assemblies. Provide sleeved or non-sleeved installation as indicated. Seal the annular space between the pipe and sleeve with fire-stopping material and sealant that meet the requirement of Section 07 84 00, FIRESTOPPING.

SECTION 23 23 00 Page 14

3.2.9.2 Waterproof Penetrations

Sleeves in exterior below grade masonry walls, below grade concrete walls and slab-on-grade floors shall be equipped with an integral steel plate waterstop welded perpendicular to sleeve. Waterstop shall be positioned at the centerline of the substrate. Sleeves in exterior masonry and concrete walls below and above grade, and slab-on-grade floors shall be with a modular mechanical type sealing assembly. Seal shall consist of interlocking synthetic rubber links shaped to continuously fill the annular space between the pipe/conduit and sleeve with corrosion protected carbon steel bolts, nuts, and pressure plates. Links shall be loosely assembled with bolts to form a continuous rubber belt around the pipe with a pressure plate under each bolt head and each nut. After the seal assembly is properly positioned in the sleeve, tightening of the bolt shall cause the rubber sealing elements to expand and provide a watertight seal between the pipe/conduit seal between the pipe/conduit and the sleeve. Each seal assembly shall be sized as recommended by the manufacturer to fit the pipe and sleeve involved.

3.2.9.3 Escutcheons

Finished surfaces where exposed piping, bare or insulated, pass through floors, walls, or ceilings, except in boiler, utility, or equipment rooms, shall be provided with escutcheons. Where sleeves project slightly from floors, special deep-type escutcheons shall be used. Escutcheon shall be secured to pipe or pipe covering.

3.2.10 Access Panels

Access panels shall be provided for all concealed valves, vents, controls, and items requiring inspection or maintenance. Access panels shall be of sufficient size and located so that the concealed items may be serviced and maintained or completely removed and replaced. Access panels shall be as specified in Section 05 50 13 MISCELLANEOUS METAL FABRICATIONS.

3.3 IDENTIFICATION OF PIPING, EQUIPMENT AND PHYSICAL HAZARDS

Identify piping and physical hazards in accordance with 29 CFR 1910.144, ANSI/ASME A13.1, ANSI Z535.1 and as modified herein. Where identification is to be applied to surfaces which require insulation, painting or other covering or finish, including valve tags in finished mechanical spaces, install identification after completion of covering and painting.