851PC2048_HNC_BD_Specs Volume 2.pdf

NCA MASTER

SPECIFICATIONS

HOUSTON NATIONAL CEMETERY

HOUSTON, HARRIS COUNTY, TEXAS

PROJECT NO. 851PC2048

PHASE V DEVELOPMENT

Volume 2

Prepared for:

United States Department of Veterans Affairs

February 2020

HOUSTON NATIONAL CEMETERY PROJECT NO. 851PC2048

PHASE V DEVELOPMENT FEBRUARY 2020

TABLE OF CONTENTS

00 01 10-1

DEPARTMENT OF VETERANS AFFAIRS

NCA MASTER SPECIFICATIONS

TABLE OF CONTENTS

VOLUME 1

Section 00 01 10

DIVISION 23 – HEATING, VENTILATING, AND AIR CONDITIONING

(HVAC)

23 05 11 Common Work Results for HVAC 11-16 23 05 12 General Motor Requirements for HVAC Equipment 11-16 23 05 41 Noise and Vibration Control for HVAC Piping and Equipment 11-16 23 05 93 Testing, Adjusting, and Balancing for HVAC 11-16 23 07 11 HVAC Insulation 11-16 23 08 00 Commissioning of HVAC Systems 12-15 23 09 23 Direct-Digital Control System for HVAC 11-16 23 23 00 Refrigerant Piping 11-16 23 31 00 HVAC Ducts and Casings 11-16 23 34 00 HVAC Fans 11-16 23 37 00 Air Outlets and Inlets 11-16 23 81 00 Unitary HVAC Equipment 11-16 23 81 43 Air-Source Unitary Heat Pumps 11-16 23 82 16 Air Coils 11-16

DIVISION 26 – ELECTRICAL

26 05 11 Requirements for Electrical Installations 07-17 26 05 19 Low-Voltage Electrical Power Conductors and Cables 07-17 26 05 26 Grounding and Bonding for Electrical Systems 07-17 26 05 33 Raceway and Boxes for Electrical Systems 07-17 26 05 41 Underground Electrical Construction 07-17 26 05 73 Overcurrent Protective Device Coordination Study 07-17 26 08 00 Commissioning of Electrical Systems 12-15 26 09 23 Lighting Controls 26 22 00 Transformers 26 24 16 Panelboards 07-17 26 27 26 Wiring Devices 07-17 26 29 13 Enclosed Contactors 26 29 21 Enclosed Switches and Circuit Breakers 07-17 26 32 13 Engine Generators 07-17 26 36 23 Automatic Transfer Switches 07-17 26 41 00 Lightning Protection 26 43 13 Surge Protective Devices 26 51 00 Interior Lighting 07-17

TABLE OF CONTENTS

00 01 10-2

DIVISION 28 – ELECTRONIC SAFETY AND SECURITY

28 08 00 Commissioning of Electronic Safety and Security Systems 12-15 28 10 00 Access Control 03-18 28 20 00 Video Surveillance 03-18 28 31 00 Intrusion Detection 03-18

DIVISION 31 – EARTHWORK

31 20 00 Earth Moving 11-16

DIVISION 32 – EXTERIOR IMPROVEMENTS

32 05 23 Cement and Concrete for Exterior Improvements 11-16 32 08 00 Commissioning of Planting Irrigation Systems 12-15 32 12 16 Asphalt Paving 11-16 32 17 23 Pavement Markings 11-16 32 17 26 Tactile Warning Surfacing 32 31 00 Ornamental Fence 32 31 13 Chain Link Fences and Gates 11-16 32 33 00 Site Furnishings 01-17 32 84 00 Planting Irrigation 01-17 32 90 00 Planting 11-16

DIVISION 33 – UTILITIES

33 10 10 Well and Testing 33 10 20 Well Pump 33 40 00 Storm Sewer Utilities 11-16

APPENDIX

Geotechnical Report Remedial Action Scope

COMMON WORK RESULTS FOR HVAC

23 05 11 - 1

SECTION 23 05 11

PART 1 - GENERAL

1.1 DESCRIPTION

A. The requirements of this Section apply to all sections of Division 23.

B. Definitions:

1. Exposed: Piping, ductwork, and equipment exposed to view in finished rooms.

C. Abbreviations/Acronyms:

1. ABS: Acrylonitrile Butadiene Styrene

2. AC: Alternating Current

3. ACR: Air Conditioning and Refrigeration

4. AI: Analog Input

5. AISI: American Iron and Steel Institute

6. AO: Analog Output

7. AWG: American Wire Gage

8. BACnet: Building Automation and Control Network

9. BAg: Silver-Copper-Zinc Brazing Alloy

10. BAS: Building Automation System

11. BCuP: Silver-Copper-Phosphorus Brazing Alloy

12. BSG: Borosilicate Glass Pipe

13. BTU: British Thermal Unit

14. BTUH: British Thermal Unit Per Hour

15. CDA: Copper Development Association

16. C: Celsius

17. CD: Compact Disk

18. CFM: Cubic Foot Per Minute

19. CLR: Color

20. CO: Carbon Monoxide

21. RE/COR: Resident Engineer/Contracting Officer’s Representative

22. CPVC: Chlorinated Polyvinyl Chloride

23. CRS: Corrosion Resistant Steel

24. CWP: Cold Working Pressure

25. CxA: Commissioning Agent

26. db(A): Decibels (A weighted)

27. DDC: Direct Digital Control

28. DI: Digital Input

29. DO: Digital Output

23 05 11 - 2

30. DVD: Digital Video Disc

31. DN: Diameter Nominal

32. DWV: Drainage, Waste and Vent

33. ECC: Engineering Control Center

34. EPDM: Ethylene Propylene Diene Monomer

35. EPT: Ethylene Propylene Terpolymer

36. ETO: Ethylene Oxide

37. F: Fahrenheit

38. FAR: Federal Acquisition Regulations

39. FD: Floor Drain

40. FED: Federal

41. FG: Fiberglass

42. FNPT: Female National Pipe Thread

43. GPM: Gallons Per Minute

44. HDPE: High Density Polyethylene

45. Hg: Mercury

46. HOA: Hands-Off-Automatic

47. hp: Horsepower

48. ID: Inside Diameter

49. in. wc: Inches of Water Column

50. IPS: Iron Pipe Size

51. Kg: Kilogram

52. kPa: Kilopascal

53. lb: Pound

54. lb/hr: Pounds Per Hour

55. L/s: Liters Per Second

56. L/min: Liters Per Minute

57. MAWP: Maximum Allowable Working Pressure

58. MAX: Maximum

59. MBH: 1000 BTUH

60. MBTU: 1000 BTU

61. MED: Medical

62. m: Meter

63. MFG: Manufacturer

64. mg: Milligram

65. mg/L: Milligrams Per Liter

66. ml: Milliliter

23 05 11 - 3

67. mm: Millimeter

68. MIN: Minimum

69. NC: Normally Closed

70. NF: Oil Free Dry (Nitrogen)

71. NO: Normally Open

72. NPTF: National Pipe Thread Female

73. NPS: Nominal Pipe Size

74. NPT: Nominal Pipe Thread

75. OD: Outside Diameter

76. OSD: Open Sight Drain

77. OS&Y: Outside Stem and Yoke

78. PLC: Programmable Logic Controllers

79. PP: Polypropylene

80. PPM: Parts Per Million

81. PSIA: Pounds Per Square Inch Absolute

82. PSIG: Pounds Per Square Inch Gage

83. PTFE: Polytetrafluoroethylene

84. PVC: Polyvinyl Chloride

85. PVDF: Polyvinylidene Fluoride

86. RAD: Radians

87. RO: Reverse Osmosis

88. RPM: Revolutions Per Minute

89. RTRP: Reinforced Thermosetting Resin Pipe

90. SCFM: Standard Cubic Feet Per Minute

91. SPEC: Specification

92. SPS: Sterile Processing Services

93. STD: Standard

94. SDR: Standard Dimension Ratio

95. SUS: Saybolt Universal Second

96. SWP: Steam Working Pressure

97. TAB: Testing, Adjusting, and Balancing

98. TDH: Total Dynamic Head

99. TEFC: Totally Enclosed Fan-Cooled

100. TFE: Tetrafluoroethylene

101. THERM: 100,000 BTU

102. THHN: Thermoplastic High-Heat Resistant Nylon Coated Wire

103. THWN: Thermoplastic Heat & Water-Resistant Nylon Coated Wire

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104. T/P: Temperature and Pressure

105. USDA: U.S. Department of Agriculture

106. V: Volt

107. VAC: Vacuum

108. VA: Veterans Administration

109. VAMC: Veterans Administration Medical Center

110. VAC: Voltage in Alternating Current

111. WOG: Water, Oil, Gas

1.2 RELATED WORK

A. Section 01 00 01, GENERAL REQUIREMENTS.

B. Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES.

C. Section 01 42 19, REFERENCE STANDARDS.

D. Section 01 81 13, SUSTAINABLE DESIGN REQUIREMENTS.

E. Section 01 91 00, GENERAL COMMISSIONING REQUIREMENTS.

F. Section 07 60 00, FLASHING AND SHEET METAL: Flashing for Wall and Roof Penetrations.

G. Section 07 84 00, FIRESTOPPING.

H. Section 07 92 00, JOINT SEALANTS.

I. Section 09 91 00, PAINTING.

J. Section 23 05 12, GENERAL MOTOR REQUIREMENTS FOR HVAC EQUIPMENT.

K. Section 23 05 41, NOISE AND VIBRATION CONTROL FOR HVAC PIPING AND

EQUIPMENT.

L. Section 23 05 93, TESTING, ADJUSTING, AND BALANCING FOR HVAC.

M. Section 23 07 11, HVAC INSULATION.

N. Section 23 08 00, COMMISSIONING OF HVAC SYSTEMS.

O. Section 26 05 11, REQUIREMENTS FOR ELECTRICAL INSTALLATIONS.

P. Section 26 05 21, LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES (600

VOLTS AND BELOW).

1.3 APPLICABLE PUBLICATIONS

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

B. Air Movement and Control Association (AMCA):

410-1996 ................................. Recommended Safety Practices for Users and Installers of

Industrial and Commercial Fans

C. American Society of Mechanical Engineers (ASME):

ASME Boiler and Pressure Vessel Code -

BPVC Section IX-2015 ........... Welding, Brazing, and Fusing Qualifications

23 05 11 - 5

D. American Society for Testing and Materials (ASTM):

A36/A36M-2014 ...................... Standard Specification for Carbon Structural Steel

A575-1996(2013) e1 ............... Standard Specification for Steel Bars, Carbon, Merchant Quality, M-Grades

E. Manufacturers Standardization Society (MSS) of the Valve and Fittings Industry, Inc.:

SP-58-2009 ............................. Pipe Hangers and Supports - Materials, Design, Manufacture, Selection, Application, and Installation

SP-127-2014a ......................... Bracing for Piping Systems: Seismic–Wind–Dynamic Design, Selection, and Application

F. National Electrical Manufacturers Association (NEMA):

MG 1-2014 .............................. Motors and Generators

G. National Fire Protection Association (NFPA):

70-2014 ................................... National Electrical Code (NEC)

1.4 SUBMITTALS

A. Submittals, including number of required copies, shall be submitted in accordance with Section

01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES, and with requirements in the individual specification sections.

B. Submit welder certificates.

C. Make all necessary field measurements and investigations to ensure that the equipment and assemblies will meet contract requirements.

D. If equipment is submitted which differs in arrangement from that shown, provide drawings that show the rearrangement of all associated systems. Approval will be given only if all features of the equipment and associated systems, including accessibility, are equivalent to that required by the contract.

E. Prior to submitting shop drawings for approval, certify in writing that manufacturers of all major items of equipment have each reviewed drawings and specifications, and have jointly coordinated and properly integrated their equipment and controls as to provide a complete and efficient installation.

F. Coordination Drawings: Indicate the proposed locations of equipment, ductwork, piping, and materials by preparing floor plans, elevations, and details to indicate penetrations in floors, walls, and ceilings and their relationship to other penetrations and installations. The sheet metal drawing shall be the Base Sheet. Other drawings produced shall be coordination drawing overlays, so interferences can be detected. Prepare coordination drawings to a scale of 1/4" =

1'-0" or larger clearly indicating the following:

1. Clearances for servicing and maintaining equipment, including tube removal, filter removal, and space for equipment disassembly required for periodic maintenance.

2. Clearances for installing and maintaining insulation.

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3. Clearances for installing and maintaining valves, dampers, and their actuators.

4. Equipment connections and support details.

5. Exterior wall and foundation penetrations.

6. Fire-rated wall and floor penetrations.

7. Sizes and location of required concrete pads and bases.

8. Indicate locations where space is limited for installation and maintenance.

9. Indicate scheduling, sequencing, movement, and positioning of large equipment into the building during construction.

10. Indicate location of existing utilities, ducts, piping and equipment that are to remain.

11. Prepare reflected ceiling plans to coordinate and integrate installations, air outlets and inlets, light fixtures, communication systems components, sprinklers, and other ceiling-mounted items.

G. Upon request by RE/COR, provide lists of previous installations for selected items of equipment. Include contact persons who will serve as references, with telephone numbers and e-mail addresses.

H. Submittals and shop drawings for interdependent items, containing applicable descriptive information, shall be furnished together and complete in a group. Coordinate and properly integrate materials and equipment in each group as to provide a completely compatible and efficient installation. Final review and approvals will be made only by groups.

I. Manufacturer's Literature and Data: Submit under the pertinent section rather than under this section.

1. Belt drive with the driven equipment.

2. Electric motor data and variable speed drive data with the driven equipment.

3. Equipment and materials identification.

4. Fire-stopping materials.

5. Hangers, inserts, supports, and bracing.

6. Wall, floor, and ceiling plates.

J. HVAC Maintenance Data and Operating Instructions: Maintenance and operating manuals in accordance with Section 01 00 01, GENERAL REQUIREMENTS, paragraph, INSTRUCTIONS, for systems and equipment.

K. Provide copies of approved HVAC equipment submittals to the testing, adjusting, and balancing subcontractor.

1.5 QUALITY ASSURANCE

A. Mechanical, electrical, and associated systems shall be safe, reliable, efficient, durable, easily and safely operable and maintainable, easily and safely accessible, and in compliance with applicable codes as specified. The systems shall be comprised of high quality institutional-class and industrial-class products, of manufacturers that are experienced specialists in the required

23 05 11 - 7 product lines. All construction firms and personnel shall be experienced and qualified specialists in institutional HVAC construction.

B. Contractor to ensure the flow rate tolerance for HVAC equipment is consistent with Section 23

05 93, TESTING, ADJUSTING, AND BALANCING FOR HVAC.

C. Equipment Vibration Tolerance:

1. Refer to Section 23 05 41, NOISE AND VIBRATION CONTROL FOR HVAC PIPING AND

EQUIPMENT. Equipment shall be factory-balanced to this tolerance and be re-balanced on site, as necessary.

2. After HVAC air balance work is completed and permanent drive sheaves are in place, perform field mechanical balancing and adjustments required to meet the specified vibration tolerance.

D. Products Criteria:

1. Standard Products: Material and equipment shall be the standard products of a manufacturer regularly engaged in the manufacture of the products for at least 3 years. The design, model, and size of each item shall have been in satisfactory and efficient operation on at least three installations for at least three years. However, digital electronics devices, software, and systems such as controls, instruments, and computer work stations shall be the current generation of technology and basic design that has a proven satisfactory service record of at least three years. See other specification sections for any exceptions.

2. All items furnished shall be free from defects that would adversely affect the performance, maintainability, and appearance of individual components and overall assembly.

3. Conform to codes and standards as required by the specifications. Conform to local codes, if required by local authorities such as the natural gas supplier, if the local codes are more stringent than those specified. Refer any conflicts to the RE/COR.

4. Multiple Units: When two or more units of materials or equipment of the same type or class are required, these units shall be products of one manufacturer.

5. Assembled Units: Ensure manufacturers of equipment assemblies, which use components made by others, that the manufacturer will assume complete responsibility for the final assembled unit.

6. Nameplates: Nameplate bearing manufacturer's name or identifiable trademark shall be securely affixed in a conspicuous place on equipment, or name or trademark cast integrally with equipment, stamped or otherwise permanently marked on each item of equipment.

7. Do not use asbestos containing products, equipment, or materials.

E. HVAC Equipment Service Organizations: Products and systems shall be supported by service organizations that maintain a complete inventory of repair parts and are located reasonably close to the site.

23 05 11 - 8

F. HVAC Mechanical Systems Welding: Before any welding is performed, submit a certificate certifying that welders comply with the following requirements:

1. Qualify welding processes and operators for piping according to ASME BPVX Section IX.

2. Certify that each welder has passed American Welding Society (AWS) qualification tests for the welding processes involved, and that certification is current.

G. Execution (Installation, Construction) Quality:

1. Apply and install all items in accordance with manufacturer's written instructions. Refer conflicts between the manufacturer's instructions and the contract drawings and specifications to the RE/COR for resolution. Provide written hard copies or computer files of manufacturer’s installation instructions to the RE/COR at least two weeks prior to commencing installation of any item. Installation of the item will not be allowed to proceed until the recommendations are received. Failure to furnish these recommendations is a cause for rejection of the material.

2. All items that require access, such as for operating, cleaning, servicing, maintenance, and calibration, shall be easily and safely accessible by persons standing at floor level, or standing on permanent platforms, without the use of portable ladders. Examples of these items include, but are not limited to, all types of valves, filters and strainers, transmitters, and control devices. Prior to commencing installation work, refer conflicts between this requirement and contract drawings to the RE/COR for resolution.

3. Provide complete layout drawings required by Paragraph, SUBMITTALS. Do not commence construction work on any system until the layout drawings have been approved.

1.6 DELIVERY, STORAGE AND HANDLING

A. Protection of Equipment:

1. Equipment and material placed on the job site shall remain in the custody of the Contractor until phased acceptance, whether or not the Government has reimbursed the Contractor for the equipment and material. The Contractor is solely responsible for the protection of such equipment and material against any damage.

2. Place damaged equipment in new operating condition; or, replace same as determined and directed by the RE/COR. Such repair or replacement shall be at no additional cost to the

Government.

3. Protect interiors of new equipment and piping systems against entry of foreign matter. Clean both inside and outside before painting or placing equipment in operation.

4. Existing equipment and piping being worked on by the Contractor shall be under the custody and responsibility of the Contractor and shall be protected as required for new work.

B. Cleanliness of Piping and Equipment Systems:

1. Exercise care in storage and handling of equipment and piping material to be incorporated in the work. Remove debris arising from cutting, threading, and welding of piping.

23 05 11 - 9

2. Piping systems shall be flushed, blown, or pigged as necessary to deliver clean systems.

3. Clean interior of all tanks prior to delivery for beneficial use by the Government.

4. Contractor is fully responsible for all costs, damage, and delay arising from failure to provide clean systems.

PART 2 - PRODUCTS

2.1 FACTORY-ASSEMBLED PRODUCTS

A. Provide maximum standardization of components.

B. Ensure manufacturers of equipment assemblies, which use components made by others, that the manufacturer assumes complete responsibility for the final assembled unit.

1. All components of an assembled unit need not be products of same manufacturer.

2. Constituent parts that are alike shall be products of a single manufacturer.

3. Components shall be compatible with each other and with the total assembly for intended service.

4. Guarantee performance of assemblies of components, and repair or replace elements of the assemblies as required to deliver specified performance of the complete assembly.

C. Components of equipment shall bear manufacturer's name and trademark, model number, serial number, and performance data on a name plate securely affixed in a conspicuous place, or cast integral with, stamped, or otherwise permanently marked upon the components of the equipment.

D. Major items of equipment, which serve the same function, shall be the same make and model.

Exceptions will be permitted only with the approval of the RE/COR and if performance requirements are met.

2.2 COMPATIBILITY OF RELATED EQUIPMENT

A. Equipment and materials installed shall be compatible with other items being furnished and with existing items so that the result will be a complete and fully operational plant that conforms to contract requirements.

2.3 BELT DRIVES

A. Drive Types:

1. Provide adjustable-pitch or fixed-pitch drive as follows:

a. Fan speeds up to 1800 RPM: 10 horsepower and smaller.

b. Fan speeds over 1800 RPM: 3 horsepower and smaller.

2. Provide fixed-pitch drives for drives larger than those listed above.

3. The final fan speeds required to meet the system CFM and pressure requirements, without throttling, shall be determined by adjustment of a temporary adjustable-pitch motor sheave, or by fan law calculation if a fixed-pitch drive is used initially.

23 05 11 - 10

2.4 DRIVE GUARDS

A. For machinery and equipment, provide guards as shown in AMCA 410 for belts, chains, couplings, pulleys, sheaves, shafts, gears, and other moving parts regardless of height above the floor as to prevent damage to equipment and injury to personnel. Drive guards may be excluded where motors and drives are inside factory-fabricated air handling unit casings.

B. Pump shafts and couplings shall be fully guarded by a sheet steel guard, covering coupling and shaft but not bearings. Material shall be minimum 16 gage sheet steel; ends shall be braked and drilled and attached to pump base with minimum of four 1/4 inch bolts. Reinforce guard as necessary to prevent side play forcing guard onto couplings.

2.5 LIFTING ATTACHMENTS

A. Provide equipment with suitable lifting attachments to enable equipment to be lifted in its normal position. Lifting attachments shall withstand any handling conditions that might be encountered, without bending or distortion of shape, such as rapid lowering and braking of load.

2.6 ELECTRIC MOTORS

A. All material and equipment furnished and installation methods shall conform to the requirements of Section 23 05 12, GENERAL MOTOR REQUIREMENTS FOR HVAC

EQUIPMENT. Provide all electrical wiring, conduit, and devices necessary for the proper connection, protection, and operation of the systems. Provide special energy efficient motors as scheduled. Unless otherwise specified for a particular application, use electric motors with the following requirements.

B. Single-phase Motors: Capacitor-start type for hard starting applications. Motors for centrifugal fans and pumps may be permanent split capacitor (PSC).

C. Poly-phase Motors: NEMA Design B, Squirrel cage, induction type.

D. Electronically Commutated Motors: Brushless DC motors. Provide with equipment where indicated on drawings. .

E. Rating: Continuous duty at 100 percent capacity in an ambient temperature of 104 degrees F and sea level; minimum horsepower as shown on drawings; when operating maximum horsepower, not to exceed nameplate rating without service factor.

F. Special Requirements:

1. Where motor power requirements of equipment furnished deviate from power shown on plans, provide electrical service designed under the requirements of NFPA 70 without additional time or cost to the Government.

2. Assemblies of motors, starters, controls, and interlocks on factory assembled and wired devices shall be in accordance with the requirements of this specification.

3. Wire and cable materials specified in the electrical division of the specifications shall be modified as follows:

23 05 11 - 11

a. Provide shielded conductors or wiring in separate conduits for all instrumentation and control systems where recommended by manufacturer of equipment.

4. Select motor sizes so that the motors do not operate into the service factor, at maximum required loads, on the driven equipment. Motors on fans shall be sized for non-overloading at all points on the fan performance curves.

5. Motors utilized with variable frequency drives shall be rated “inverter-ready” per NEMA MG 1.

Provide motor shaft grounding apparatus that will protect bearings from damage from stray currents.

G. Motor Efficiency and Power Factor: All motors, when specified as “high efficiency” by the project specifications on driven equipment, shall conform to efficiency and power factor requirements in Section 23 05 12, GENERAL MOTOR REQUIREMENTS FOR HVAC

EQUIPMENT, with no consideration of annual service hours. Motor manufacturers generally define these efficiency requirements as “NEMA premium efficient” and the requirements generally exceed those of the Energy Policy Act of 1992 (EPACT). Motors not specified as

“high efficiency” shall comply with EPACT.

H. Insulation Resistance: Not less than one-half meg-ohm between stator conductors and frame, to be determined at the time of final inspection.

2.7 VARIABLE SPEED MOTOR CONTROLLERS

A. Refer to Section 26 05 11, REQUIREMENTS FOR ELECTRICAL INSTALLATIONS for specifications.

B. The combination of controller and motor shall be provided by the manufacturer of the driven equipment, such as fans, and shall be rated for 100 percent output performance. Multiple units of the same class of equipment, i.e. air handlers, fans, shall be the products of a single manufacturer.

C. Motors shall be energy efficient type and be approved by the motor controller manufacturer.

The controller-motor combination shall be guaranteed to provide full motor nameplate horsepower in variable frequency operation. Both driving and driven motor/fan sheaves shall be fixed pitch.

D. Controller shall not add any current or voltage transients to the input AC power distribution system, DDC controls, etc., nor shall be affected from other devices on the AC power system.

2.8 EQUIPMENT AND MATERIALS IDENTIFICATION

A. Use symbols, nomenclature, and equipment numbers specified, shown on the drawings, and shown in the maintenance manuals. In addition, provide bar code identification nameplate for all equipment which will allow the equipment identification code to be scanned into the system for maintenance and inventory tracking. Identification for piping is specified in Section 09 91 00, PAINTING.

23 05 11 - 12

B. Interior (Indoor) Equipment: Engraved nameplates, with letters not less than 1-7/8 inches high of brass with black-filled letters, or rigid black plastic with white letters as specified in Section 09

91 00, PAINTING permanently fastened to the equipment. Exterior (Outdoor) Equipment: Brass nameplates, with engraved black filled letters, not less than 1-7/8 inches high, riveted or bolted to the equipment.

C. Control Items: Label all temperature and humidity sensors, controllers, and control dampers.

Identify and label each item as they appear on the control diagrams.

2.9 FIRESTOPPING

A. Section 07 84 00, FIRESTOPPING specifies an effective barrier against the spread of fire, smoke, and gases where penetrations occur for piping and ductwork. Refer to Section 23 07

11, HVAC INSULATION, for firestop pipe and duct insulation.

2.10 GALVANIZED REPAIR COMPOUND

A. Green Seal Standard GC-03, paint form.

2.11 HVAC PIPE AND EQUIPMENT SUPPORTS AND RESTRAINTS

A. Vibration Isolators: Refer to Section 23 05 41, NOISE AND VIBRATION CONTROL FOR HVAC

PIPING AND EQUIPMENT.

B. Supports for Roof Mounted Items:

1. Equipment: Equipment rails shall be weather treated wood 4 inch by 4 inch or galvanized steel, minimum 18 gage, with integral baseplate, continuous welded corner seams, factory installed 2 inch by 4 inch treated wood nailer, 18 gage galvanized steel counter flashing cap with screws, built-in cant strip (except for gypsum or tectum deck), with minimum height 11 inches. For surface insulated roof deck, provide raised cant strip starting at the upper surface of the insulation.

2. Pipe/duct pedestals: Provide a galvanized Unistrut channel welded to U-shaped mounting brackets which are secured to side of rail with galvanized lag bolts.

C. Pipe Supports: Comply with MSS SP-58. Type numbers specified refer to this standard. For selection and application, comply with MSS SP-58.

D. Attachment to Concrete Building Construction:

1. Concrete insert: MSS SP-58, Type 18.

2. Self-drilling expansion shields and machine bolt expansion anchors: Permitted in concrete not less than 4 inches thick, when approved by the RE/COR for each job condition.

3. Power-driven fasteners: Permitted in existing concrete or masonry not less than 4 inches thick, when approved by the RE/COR for each job condition.

E. Attachment to Metal Pan or Deck: As required.

F. Hanger Rods: Hot-rolled steel, ASTM A36/36M or ASTM A575 for allowable load listed in MSS

SP-58. For piping, provide adjustment means for controlling level or slope. Types 13 or 15 turn-

23 05 11 - 13 buckles shall provide 1-1/2 inches minimum of adjustment and incorporate locknuts. All-thread rods are acceptable.

G. Hangers Supporting Multiple Pipes (Trapeze Hangers): Galvanized, cold formed, lipped steel channel horizontal member, not less than 1-5/8 inches by 1-5/8 inches, 12 gage, designed to accept special spring held, hardened steel nuts.

1. Allowable hanger load: Manufacturers rating less 200 pounds.

2. Guide individual pipes on the horizontal member of every other trapeze hanger with 1/4-inch

U-bolt fabricated from steel rod. Provide Type 40 insulation shield, secured by two 1/2-inch galvanized steel bands, or pre-insulated calcium silicate shield for insulated piping at each hanger.

H. Supports for Piping Systems: Select hangers sized to encircle insulation on insulated piping.

Refer to Section 23 07 11, HVAC INSULATION, for insulation thickness. To protect insulation, provide Type 39 saddles for roller type supports or pre-insulated calcium silicate shields.

Provide Type 40 insulation shield or pre-insulated calcium silicate shield at all other types of supports and hangers, including those for pre-insulated piping.

2.12 PIPE PENETRATIONS

A. Install sleeves during construction.

B. Penetrations are prohibited through beams or ribs but may be installed in concrete beam flanges. Any deviation from these requirements shall be made only after receipt of prior approval from the RE/COR.

C. Sheet Metal, Plastic, or Moisture Resistant Fiber Sleeves: Provide for pipe passing through floors, interior walls, and partitions, unless brass or steel pipe sleeves are specifically called for below.

D. Cast Iron or Zinc-Coated Pipe Sleeves: Provide for pipe passing through exterior walls below grade. Make space between sleeve and pipe watertight with a modular or link rubber seal. Seal shall be applied at both ends of sleeve.

E. Galvanized Steel or an Alternate Black Iron Pipe with Asphalt Coating Sleeves: Provide for pipe passing through concrete beam flanges, except where brass pipe sleeves are called for.

F. Brass Pipe Sleeves: Provide for pipe passing through quarry tile, terrazzo, or ceramic tile floors.

Connect sleeve with floor plate.

G. Sleeve Clearance: Sleeve through floors, walls, partitions, and beam flanges shall be one inch greater in diameter than external diameter of pipe. Sleeve for pipe with insulation shall be large enough to accommodate the insulation. Interior openings shall be caulked tight with fire stopping material and sealant to prevent the spread of fire, smoke, and gases.

H. Sealant and Adhesives: Shall be as specified in Section 07 92 00, JOINT SEALANTS.

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2.13 SPECIAL TOOLS AND LUBRICANTS

A. Furnish, and turn over to the RE/COR, special tools not readily available commercially, that are required for disassembly or adjustment of equipment and machinery furnished.

2.14 WALL, FLOOR AND CEILING PLATES

A. Material and Type: Chrome-plated brass or chrome-plated steel, one piece or split type with concealed hinge, with set screw for fastening to pipe or sleeve. Use plates that fit tight around pipes, cover openings around pipes, and cover the entire pipe sleeve projection.

B. Thickness: Not less than 3/32 inch for floor plates. For wall and ceiling plates, not less than

0.025 inch for up to 3-inch pipe, 0.035 inch for larger pipe.

C. Locations: Use where pipe penetrates floors, walls, and ceilings in exposed locations, in finished areas only. Use also where insulation ends on exposed water supply pipe drop from overhead. Provide a watertight joint in spaces where brass or steel pipe sleeves are specified.

2.15 ASBESTOS

A. Materials containing asbestos are prohibited.

PART 3 - EXECUTION

3.1 INSTALLATION

A. If an installation is unsatisfactory to the RE/COR, the Contractor shall correct the installation at no additional cost or time to the Government.

3.2 ARRANGEMENT AND INSTALLATION OF EQUIPMENT AND PIPING

A. Coordinate location of piping, sleeves, inserts, hangers, ductwork, and equipment. Locate piping, sleeves, inserts, hangers, ductwork, and equipment clear of windows, doors, openings, light outlets, and other services and utilities. Prepare equipment layout drawings to coordinate proper location and personnel access to all facilities. Submit the drawings for review as required by Part 1. Follow manufacturer's published recommendations for installation methods not otherwise specified.

B. Operating Personnel Access and Observation Provisions: Select and arrange all equipment and systems to provide clear view and easy access, without use of portable ladders, for maintenance and operation of all devices including, but not limited to, all equipment items, valves, filters, strainers, transmitters, sensors, and control devices. All gages and indicators shall be clearly visible by personnel standing on the floor or on permanent platforms. Do not reduce or change maintenance and operating space and access provisions that are shown on the drawings.

C. Equipment and Piping Support: Coordinate structural systems necessary for pipe and equipment support with pipe and equipment locations to permit proper installation.

D. Location of pipe sleeves, trenches, and chases shall be accurately coordinated with equipment and piping locations.

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E. Cutting Holes:

1. Cut holes through concrete and masonry by rotary core drill. Pneumatic hammer, impact electric, and hand or manual hammer type drill is prohibited, except as permitted by the

RE/COR where working area space is limited.

2. Locate holes to avoid interference with structural members such as beams or grade beams.

Contractor to provide X-ray validation of no structural member conflicts prior to drilling. Holes shall be laid out in advance and drilling done only after approval by RE/COR. If the

Contractor considers it necessary to drill through structural members, refer to the RE/COR for approval.

3. Do not penetrate membrane waterproofing.

F. Interconnection of Instrumentation or Control Devices: Generally, electrical and pneumatic interconnections are not shown but shall be provided.

G. Minor Piping: Generally, small diameter pipe runs from drips and drains, water cooling, and other service are not shown but shall be provided.

H. Electrical Interconnection of Controls and Instruments: Generally, not shown but shall be provided. This includes interconnections of sensors, transmitters, transducers, control devices, control and instrumentation panels, instruments, and computer workstations. Comply with

NFPA 70.

I. Protection and Cleaning:

1. Equipment and materials shall be carefully handled, properly stored, and adequately protected to prevent damage before and during installation, in accordance with the manufacturer's recommendations, and as approved by the RE/COR. Damaged or defective items, in the opinion of the RE/COR, shall be replaced.

2. Protect all finished parts of equipment, such as shafts and bearings, where accessible, from rust prior to operation by means of protective grease coating and wrapping. Close pipe openings with caps or plugs during installation. Tightly cover and protect fixtures and equipment against dirt, water chemical, or mechanical injury. At completion of all work, thoroughly clean fixtures, exposed materials, and equipment.

J. Concrete and Grout: Use concrete and shrink compensating grout 3000 psig minimum.

K. Install gages, thermometers, valves, and other devices with due regard for ease in reading or operating and maintaining devices. Locate and position thermometers and gages to be easily read by operator or staff standing on floor or on walkway provided. Servicing shall not require dismantling adjacent equipment or pipe work.

L. Work in Existing Building:

1. Perform as specified in paragraphs, OPERATIONS AND STORAGE AREAS, ALTERATIONS, and RESTORATION of Section 01 00 01, GENERAL REQUIREMENTS for relocation of existing equipment, alterations and restoration of existing building(s).

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2. As specified in paragraph, OPERATIONS AND STORAGE AREAS of Section 01 00 01, GENERAL REQUIREMENTS, make alterations to existing service piping at times that will least interfere with normal operation of the facility.

3. Cut required openings through existing masonry and reinforced concrete using diamond core drills. Use of pneumatic hammer type drills, impact type electric drills, and hand or manual hammer type drills will be permitted only with approval of the RE/COR. Locate openings that will least effect structural slabs, columns, ribs, or beams. Refer to the RE/COR for determination of proper design for openings through structural sections and for opening layouts approval prior to cutting or drilling into structures. After RE/COR approval, carefully cut opening through construction no larger than necessary for the required installation.

M. Switchgear Drip Protection: Every effort shall be made to eliminate the installation of pipe above electrical and telephone switchgear. If this is not possible, encase pipe in a second pipe with a minimum of joints.

N. Inaccessible Equipment:

1. Where the Government determines that the Contractor has installed equipment not conveniently accessible for operation and maintenance, equipment shall be removed and reinstalled or remedial action performed as directed at no additional cost to the Government.

2. The term "conveniently accessible" is defined as capable of being reached without the use of ladders, or without climbing or crawling under or over obstacles such as motors, fans, pumps, belt guards, transformers, high voltage lines, piping, and ductwork.

3.3 TEMPORARY PIPING AND EQUIPMENT

A. Continuity of operation of existing facilities will generally require temporary installation or relocation of equipment and piping.

B. Provide all required facilities in accordance with the requirements of phased construction and maintenance of service. All piping and equipment shall be properly supported, sloped to drain, operate without excessive stress, and shall be insulated where injury can occur to personnel by contact with operating facilities. The requirements of paragraph, ARRANGEMENT AND

INSTALLATION OF EQUIPMENT AND PIPING apply.

3.4 RIGGING

A. Alternative methods of equipment delivery may be offered by Contractor and will be considered by Government if allowed under specified restrictions of phasing and maintenance of service as well as structural integrity of the building.

B. Close all openings in the building when not required for rigging operations, to maintain proper environment in the facility for Government operation, and maintenance of service.

C. Provide all facilities required to deliver specified equipment, and place on foundations.

Attachments to structures for rigging purposes and support of equipment on structures shall be

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Contractor's responsibility. Upon request, the Government will check structure adequacy and advise Contractor of recommended restrictions.

D. Check all clearances, weight limitations, and provide a rigging plan designed by a Registered

Professional Engineer. All modifications to structures, including reinforcement, shall be at

Contractor's cost, time, and responsibility.

E. Rigging plan and methods shall be referred to RE/COR for evaluation prior to actual work.

F. Restore building to original condition upon completion of rigging work.

3.5 PIPE AND EQUIPMENT SUPPORTS

A. Where hanger spacing does not correspond with joist or rib spacing, use structural steel channels secured directly to joist and rib structure that will correspond to the required hanger spacing, and then suspend the equipment and piping from the channels. Drill or burn holes in structural steel only with the prior approval of the RE/COR.

B. Use of chain, wire, or strap hangers; wood for blocking, stays, and bracing; or, hangers suspended from piping above is prohibited. Replace or thoroughly clean rusty products and paint with zinc primer.

C. Use hanger rods that are straight and vertical. Turnbuckles for vertical adjustments may be omitted where limited space prevents use. Provide a minimum of 1/2 inch clearance between pipe or piping covering and adjacent work.

D. Overhead Supports:

1. The basic structural system of the building is designed to sustain the loads imposed by equipment and piping to be supported overhead.

2. Provide steel structural members, in addition to those shown, of adequate capability to support the imposed loads, located in accordance with the final approved layout of equipment and piping.

E. Floor Supports:

1. Provide concrete bases, concrete anchor blocks and pedestals, and structural steel systems for support of equipment and piping. Anchor and dowel concrete bases and structural systems to resist forces under operating and seismic conditions without excessive displacement or structural failure.

2. Do not locate or install bases and supports until equipment mounted thereon has been approved. Size bases to match equipment mounted thereon plus 2 inch excess on all edges.

Refer to structural drawings. Bases shall be neatly finished and smoothed, shall have chamfered edges at the top, and shall be suitable for painting.

3. All equipment shall be shimmed, leveled, firmly anchored, and grouted with epoxy grout.

Anchor bolts shall be placed in sleeves, anchored to the bases. Fill the annular space between sleeves and bolts with a granular material to permit alignment and realignment.

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3.6 MECHANICAL DEMOLITION

A. Rigging access, other than indicated on the drawings, shall be provided by the Contractor after approval for structural integrity by the RE/COR. Such access shall be provided without additional cost or time to the Government. Where work is in an occupied building or an operating plant, provide approved protection from dust and debris at all times for the safety of personnel, maintenance of operation, and environment of the facility.

B. In an occupied building, maintain the operation, cleanliness, and safety. Government personnel will be carrying on their normal duties or normal duties of operating, cleaning, maintaining equipment, and building operation. Confine the work to the immediate area concerned;

maintain cleanliness and wet down demolished materials to eliminate dust. Allowing debris to accumulate in the area to the detriment of operations is prohibited. Perform all flame cutting to maintain the fire safety integrity of the building and occupants. Adequate fire extinguishing facilities shall be available at all times. Perform all work in accordance with recognized fire protection standards. Inspection will be made by personnel of the VA and Contractor shall follow all directives of the RE/COR with regard to rigging, safety, fire safety, and maintenance of operations.

C. Completely remove all piping, wiring, conduit, and other devices associated with the equipment not to be re-used in the new work. This includes all pipe, valves, fittings, insulation, and all hangers including the top connection and any fastenings to building structural systems. Seal all openings, after removal of equipment, pipes, ducts, and other penetrations in roof, walls, and floors in an approved manner and in accordance with plans and specifications where specifically covered. Structural integrity of the building system shall be maintained. Reference shall also be made to the drawings and specifications of the other disciplines in the project for additional facilities to be demolished or handled.

D. All valves including gate, globe, ball, butterfly, and check, and all pressure gages and thermometers with wells shall remain Government property and shall be removed, delivered to

RE/COR, and stored as directed. Remove all other material and equipment, devices, and demolition debris under these plans and specifications. Such material shall be removed from

Government property expeditiously and is prohibited to accumulate.

3.7 CLEANING AND PAINTING

A. Prior to final inspection and acceptance of the equipment rooms and facilities for beneficial use by the Government, the facilities, equipment, and systems shall be thoroughly cleaned and painted. Refer to Section 09 91 00, PAINTING. Use cleaning materials and methods recommended by the manufacturers for the specific tasks. Remove all rust prior to painting and from surfaces to remain unpainted. Repair scratches, scuffs, and abrasions prior to applying prime and finish coats.

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B. In addition, the following special conditions apply:

1. Material and Equipment Not to Be Painted Includes:

a. Motors, controllers, control switches, and safety switches.

b. Control and interlock devices.

c. Regulators.

d. Pressure reducing valves.

e. Control valves and thermostatic elements.

f. Lubrication devices and grease fittings.

g. Copper, brass, aluminum, stainless steel, and bronze surfaces.

h. Valve stems and rotating shafts.

i. Pressure gages and thermometers.

j. Glass.

k. Name plates.

2. Control and instrument panels shall be cleaned, damaged surfaces repaired, and touched-up with matching paint obtained from panel manufacturer.

3. Pumps, fans, motors, steel and cast-iron bases, and coupling guards shall be cleaned, and touched-up with the same color as utilized by the pump and fan manufacturer

4. Final result shall be smooth, even-colored, even-textured factory finish on all items.

Completely repaint the entire piece of equipment if necessary.

3.8 IDENTIFICATION SIGNS

A. Factory Built Equipment: Metal plate, securely attached, with name and address of manufacturer, serial number, model number, size, and performance.

B. Pipe Identification: Refer to Section 09 91 00, PAINTING.

3.9 MOTOR AND DRIVE ALIGNMENT

A. Belt Drive: Set driving and driven shafts parallel and align so that the corresponding grooves are in the same plane.

B. Direct-connect Drive: Securely mount motor in accurate alignment so that shafts are free from both angular and parallel misalignments when both motor and driven machine are operating at normal temperatures.

3.10 LUBRICATION

A. Lubricate all devices requiring lubrication prior to initial operation, and field-check all devices for proper lubrication.

B. Equip all devices with required lubrication fittings or devices.

C. All lubrication points shall be accessible without disassembling equipment, except to remove access plates.

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3.11 STARTUP AND TEMPORARY OPERATION

A. Startup equipment per manufacturer’s instructions. Verify that vibration is within specified tolerance prior to extended operation. Temporary use of equipment is specified in Section 01

00 01, GENERAL REQUIREMENTS, paragraph, TEMPORARY USE OF MECHANICAL AND

ELECTRICAL EQUIPMENT.

3.12 OPERATING AND PERFORMANCE TESTS

A. Prior to the final inspection, perform required tests as specified in Section 01 00 01, GENERAL

REQUIREMENTS, paragraph, TESTS, and submit the test reports and records to the RE/COR.

B. Should evidence of malfunction in any tested system, or piece of equipment or component part thereof, occur during or as a result of tests, make proper corrections, repairs, or replacements and repeat tests at no additional cost to the Government.

C. When completion of certain work or system occurs at a time when final control settings and adjustments cannot be properly made to make performance tests, then make performance tests for heating systems and for cooling systems respectively during first actual seasonal use of respective systems following completion of work.

- - - E N D - - -

GENERAL MOTOR REQUIREMENTS FOR HVAC EQUIPMENT

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SECTION 23 05 12

A. This section specifies the furnishing, installation and connection of motors for HVAC equipment.

B. A complete listing of common acronyms and abbreviations are included in Section 23 05 11, COMMON WORK RESULTS FOR HVAC.

1.2 RELATED WORK

A. Section 01 00 01, GENERAL REQUIREMENTS.

B. Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES.

C. Section 01 42 19, REFERENCE STANDARDS.

D. Section 01 81 13, SUSTAINABLE CONSTRUCTION REQUIREMENTS.

E. Section 01 91 00, GENERAL COMMISSIONING REQUIREMENTS.

F. Section 23 05 11, COMMON WORK RESULTS FOR HVAC: General mechanical requirements and items which are common to more than one section of Division 23.

G. Section 23 08 00, COMMISSIONING OF HVAC SYSTEMS.

H. Section 26 05 11, REQUIREMENTS FOR ELECTRICAL INSTALLATIONS: General electrical requirements that are common to more than one Section of Division 26.

1.3 APPLICABLE PUBLICATIONS

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

B. National Electrical Manufacturers Association (NEMA):

MG 1-2014 ................................. Motors and Generators

MG 2-2014 ................................. Safety Standard for Construction and Guide for Selection, Installation and Use of Electric Motors and Generators

C. National Fire Protection Association (NFPA):

70-2014 ...................................... National Electrical Code (NEC)

1.4 SUBMITTALS

A. Submittals, including number of required copies, shall be submitted in accordance with Section

01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES.

B. Information and material submitted under this section shall be marked “SUBMITTED UNDER

SECTION 23 05 12, GENERAL MOTOR REQUIREMENTS FOR HVAC EQUIPMENT”, with applicable paragraph identification.

C. Manufacturer's Literature and Data including: Full item description and optional features and accessories. Include dimensions, weights, materials, applications, standard compliance, model numbers, size, and capacity.

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D. Shop Drawings:

1. Include clearly presented information that is sufficient to demonstrate compliance with contract documents.

2. Include electrical ratings, dimensions, mounting details, materials, horsepower, RPM, enclosure, starting characteristics, torque characteristics, code letter, full load and locked rotor…