CFSL-HVACRepairsAndEnergyUpgrades-100CD-SpecsV2-_031416.pdf

PROJECT MANUAL

VOLUME II of III

CFSL HVAC Repairs and Energy Upgrades

Construction Documents

Issued: March 14, 2016

Architect’s Project Number: 1402.01

OWNER:

USDA Forest Service

Pacific Northwest Research Station Corvallis forestry Sciences Laboratory

ARCHITECT:

Chamberlin Architects, P.C.

437 Main Street Grand Junction, CO 81501

(970) 242-6804

STRUCTURAL ENGINEER:

Martin / Martin

12499 West Colfax Avenue Lakewood, CO 80215

(303) 431-6100

MECHANICAL / ELECTRICAL ENGINEER:

RMH Group

12600 West Colfax Avenue Suite A-400

Lakewood, CO 80215

(303) 239-0909

PatrickH RMH Div 22

PatrickH RMH Electrical

CFSL HVAC REPAIRS AND ENERGY UPGRADES 00 15 00-1

PNWRS LIST OF DRAWINGS AND SPECIFICATIONS

SECTION 001500

PACIFIC NORTHWEST RESEARCH STATION

CFSL HVAC REPAIRS AND ENERGY UPGRADES

LIST OF DRAWINGS AND SPECIFICATIONS

PART 1 – GENERAL

1.1 DESCRIPTION

A. List of Contract Drawings:

1. Index of Sheets:

G.001 Cover Sheet G.002 Phasing Plans

Architectural

A.001 Notes, Symbols, Abbreviations And Wall Types A.002 Code Checklist A.003 Code Plans A.020 1st Floor Demo Plans A.021 1st Floor Reflected Ceiling Demo Plan A.022 2nd Floor Reflected Ceiling Demo Plan A.023 3rd Floor Reflected Ceiling Demo Plan A.110 First Floor Plan

CWA.140 Roof Plan LWA.140 Roof Plan WNA.140 Roof Plan

A.210 Exterior Elevations A.211 Exterior Elevations A.212 Exterior Elevations A.213 Exterior Elevations A.301 Enlarged Floor Plans & Details A.410 Window & Door Types, Details & Schedules A.411 Roof Details A.412 Roof Details A.501 Wall Sections

Structural S.001 Symbols, Abbreviations & Design Criteria S.002 General Notes & Quality Assurance S.003 General Notes & Quality Assurance S.004 General Notes & Quality Assurance S.110 First Floor Plan S.120 Second Floor Plan S.130 Third Floor Plan S.140 Roof Plan

CFSL HVAC REPAIRS AND ENERGY UPGRADES 00 15 00-2

NS.301 Partial North Enlarged Plan CS.301 Partial Central Enlarged Plan CS.302 Partial Central Enlarged Plan WS.301 Partial West Enlarged Plan WS.302 Partial West Enlarged Plan WS.303 Partial West Enlarged Plan

S.410 Structural Details S.411 Structural Details S.412 West Wing Addition Details S.413 West Wing Addition Details

Mechanical M.010 Mechanical Legend

LMD.111 Mechanical Demolition Lab Services Wing, First Floor LMD.121 Mechanical Demolition Lab Services Wing, Second Floor LMD.131 Mechanical Demolition Lab Services Wing, Third Floor LMD.211 Mechanical Demolition Sections Lab Services Wing LMD.311 Enlarged Mechanical Demolition, Lab Services Wing, First Floor LMD.312 Enlarged Mechanical Demolition, Lab Services Wing, First Floor LMD.331 Enlarged Mechanical Demolition, Lab Services Wing, Third

Floor

LM.111 Mechanical Installation, Lab Service Wing, First Floor LM.121 Mechanical Installation, Lab Service Wing, Second Floor LM.131 Mechanical Installation, Lab Service Wing, Third Floor LM.211 Mechanical Section Lab Services Wing LM.221 Mechanical Section, Lab Services Wing LM.311 Enlarged Mechanical Installation, Lab Services Wing, First Floor LM.312 Enlarged Mechanical Installation, Lab Services Wing, First Floor LM.331 Enlarged Mechanical Installation, Lab Services Wing, Third

Floor LM.510 Mechanical Schedules - Phase 1

NMD.111 Mechanical Demolition North Wing, First Floor NMD.112 Mechanical Demolition North Wing, Second Floor

NM.111 Mechanical Installation, North Wing, First Floor NM.112 Mechanical Installation, North Wing, Second Floor NM.510 Mechanical Schedules - Phase 1A

CMD.111 Mechanical Demolition Central Wing North, First Floor CMD.112 Mechanical Demolition Central Wing South, First Floor CMD.113 Mechanical Demolition Central Wing West, First Floor CMD.121 Mechanical Demolition Central Wing North, Second Floor CMD.122 Mechanical Demolition Central Wing South, Second Floor CMD.123 Mechanical Demolition Central Wing West, Second Floor

CFSL HVAC REPAIRS AND ENERGY UPGRADES 00 15 00-3

CMD.131 Mechanical Demolition Central Wing North, Third Floor CMD.132 Mechanical Demolition Central Wing South, Third Floor CMD.133 Mechanical Demolition Central Wing West, Third Floor CMD.210 Mechanical Demolition Sections, Central Wing CMD.211 Mechanical Demolition Sections, Central Wing CMD.212 Mechanical Demolition Sections, Central Wing CMD.213 Mechanical Demolition Sections, Central Wing CMD.311 Enlarged Mechanical Demolition, Central Wing, First Floor CMD.312 Enlarged Mechanical Demolition, Central Wing, First Floor CMD.321 Enlarged Mechanical Demolition Central Wing, Second Floor CMD.331 Enlarged Mechanical Demolition, Central Wing, Third Floor CMD.332 Enlarged Mechanical Demolition, Central Wing, Third Floor

CM.111 Mechanical Installation, Central Wing North, First Floor CM.112 Mechanical Installation, Central Wing South, First Floor CM.113 Mechanical Installation, Central Wing West, First Floor CM.121 Mechanical Installation, Central Wing North, Second Floor CM.122 Mechanical Installation, Central Wing South, Second Floor CM.123 Mechanical Installation, Central Wing West, Second Floor CM.131 Mechanical Installation, Central Wing North, Third Floor CM.132 Mechanical Installation, Central Wing South, Third Floor CM.133 Mechanical Installation, Central Wing West, Third Floor CM.210 Mechanical Sections, Central Wing CM.211 Mechanical Sections, Central Wing CM.212 Mechanical Sections, Central Wing CM.311 Enlarged Mechanical Installation, Central Wing, First Floor CM.312 Enlarged Mechanical Installation, Central Wing, First Floor CM.321 Enlarged Mechanical Installation, Central Wing, Second Floor CM.331 Enlarged Mechanical Installation, Central Wing, Third Floor CM.332 Enlarged Mechanical Installation, Central Wing, Third Floor CM.510 Mechanical Schedules - Phase 2 CM.511 Mechanical Schedules - Phase 2A

WMD.111 Mechanical Demolition West Wing North, First Floor WMD.112 Mechanical Demolition West Wing South, First Floor WMD.121 Mechanical Demolition West Wing North, Second Floor WMD.122 Mechanical Demolition West Wing South, Second Floor WMD.131 Mechanical Demolition West Wing North, Third Floor WMD.132 Mechanical Demolition West Wing South, Third Floor WMD.211 Mechanical Demolition Sections, West Wing WMD.212 Mechanical Demolition Sections, West Wing WMD.311 Enlarged Mechanical Demolition, West Wing, First Floor WMD.312 Enlarged Mechanical Demolition, West Wing, First Floor WMD.321 Enlarged Mechanical Demolition, West Wing, Second Floor WMD.331 Enlarged Mechanical Demolition, West Wing, Third Floor WMD.332 Enlarged Mechanical Demolition, West Wing, Third Floor

WM.111 Mechanical Installation, West Wing North, First Floor

CFSL HVAC REPAIRS AND ENERGY UPGRADES 00 15 00-4

WM.112 Mechanical Installation, West Wing South, First Floor WM.121 Mechanical Installation, West Wing North, Second Floor WM.122 Mechanical Installation, West Wing South, Second Floor WM.131 Mechanical Installation, West Wing North, Third Floor WM.132 Mechanical Installation, West Wing South, Third Floor WM.210 Mechanical Install Sections, West Wing WM.211 Mechanical Sections, West Wing WM.212 Mechanical Sections, West Wing WM.311 Enlarged Mechanical Installation, West Wing, First Floor WM.312 Enlarged Mechanical Installation, West Wing, First Floor WM.321 Enlarged Mechanical Installation, West Wing, Second Floor WM.322 Enlarged Mechanical Installation, West Wing, Second Floor WM.331 Enlarged Mechanical Installation, West Wing, Third Floor WM.332 Enlarged Mechanical Installation, West Wing, Third Floor WM.510 Mechanical Schedules - Phases 3 & 3A WM.511 Mechanical Schedules - Phase 4 WM.512 Mechanical Schedules - Phase 5

MD.420 Mechanical Flow Diagram, Existing Steam Flow Diagram MD.430 Mechanical Flow Diagram, Existing Heating Water System MD.440 Mechanical Flow Diagram, Existing Chilled Water System

M.410 Mechanical Details M.411 Mechanical Details M.412 Mechanical Details M.413 Mechanical Details M.414 Mechanical Details M.420 Mechanical Flow Diagram, New Steam Flow Diagram M.430 Mechanical Flow Diagram, New Heating Water System M.440 Mechanical Flow Diagram, Chilled Water System Installation M.450 Mechanical Flow Diagram, Process Chilled Water M.460 Mechanical Flow Diagram, Heat Recovery System

C.010 Mechanical Control Diagrams C.401 Mechanical Control Diagrams C.402 Mechanical Control Diagrams

LC.411 Mechanical Control Diagrams LC.412 Mechanical Control Diagrams LC.413 Mechanical Control Diagrams CC.421 Mechanical Control Diagrams NC.422 Mechanical Control Diagrams NC.423 Mechanical Control Diagrams CC.431 Mechanical Control Diagrams CC.441 Mechanical Control Diagrams CC.442 Mechanical Flow Diagram Heat Recovery System WC.451 Mechanical Control Diagrams WC.461 Mechanical Control Diagrams WC.462 Mechanical Flow Diagram Heat Recovery System

CFSL HVAC REPAIRS AND ENERGY UPGRADES 00 15 00-5

Electrical E.010 Electrical Legend

ED.111 Electrical Demolition Overall Plan ED.112 Electrical Demolition Overall Plan ED.113 Electrical Demolition Overall Plan ED.311 Enlarged Electrical Demo First Floor ED.410 Electrical Demolition One-Line Diagram ED.411 Electrical Demolition One Line Diagram ED.412 Electrical Demolition One-Line Diagram

E.111 Electrical Installation Overall Plan E.112 Electrical Installation Overall Plan E.113 Electrical Installation Overall Plan E.311 Enlarged Electrical Installation First Floor E.410 Electrical One-Line E.411 Electrical One-Line E.412 Electrical One-Line E.510 Electrical Schedules E.511 Electrical Schedules E.512 Electrical Schedules E.513 Electrical Schedules E.514 Electrical Schedules E.515 Electrical Schedules E.516 Electrical Schedules E.517 Electrical Schedules

181 Total Plan Sheets in this Contract

B. List of Contract Specifications

1. Index of Specifications

VOLUME 1

DIVISION 1 - GENERAL REQUIREMENTS

Section 00 15 00 List of Drawings and Specifications Section 01 10 00 Summary of Work Section 01 12 50 Definition of Contract Items and Measurement and Payment Section 01 14 00 Work Restrictions Section 01 15 00 Hazardous Materials Requirements Section 01 17 00 Accident Prevention Section 01 31 00 Project Management and Coordination Section 01 33 00 Submittal Procedures Section 01 40 00 Quality Requirements Section 01 45 00 Construction Indoor Air Quality Management Section 01 50 00 Temporary Facilities and Controls Section 01 73 00 Execution Requirements

CFSL HVAC REPAIRS AND ENERGY UPGRADES 00 15 00-6

Section 01 74 19 Construction Waste Management Section 01 77 00 Closeout Procedures Section 01 78 23 Operation and Maintenance Data Section 01 79 00 Demonstration and Training Section 01 91 13 General Commissioning Requirements

DIVISION 2 – EXISTING CONDITIONS

Section 02 41 19 Selective Demolition Section 02 82 13 Asbestos Abatement

DIVISION 3 – CONCRETE

Section 03 30 00 Cast-In-Place Concrete

DIVISION 4 – MASONRY N/A

DIVISION 5 – METALS

Section 05 12 00 Structural Steel Framing Section 05 52 13 Pipe and Tube Railings Section 05 53 13 Bar Gratings

DIVISION 6 – WOOD AND PLASTICS

Section 06 10 00 Rough Carpentry Section 06 16 00 Sheathing Section 06 20 13 Exterior Finish Carpentry

DIVISION 7 – THERMAL AND MOISTURE PROTECTION

Section 07 01 50.19 Preparation For Reroofing Section 07 11 13 Bituminous Dampproofing Section 07 21 00 Thermal Insulation Section 07 25 00 Weather Barriers Section 07 31 13 Asphalt Shingles

Section 07 41 13.16 Standing Seam Metal Roof Panels Section 07 54 23 Thermoplastic Polyolefin (TPO) Roofing Section 07 71 00 Roof Specialties Section 07 84 13 Penetration Firestopping Section 07 92 00 Joint Sealants

DIVISION 8 – DOORS AND WINDOWS

Section 08 11 13 Hollow Metal Doors and Frames Section 08 54 13 Fiberglass Windows Section 08 71 00 Door Hardware

CFSL HVAC REPAIRS AND ENERGY UPGRADES 00 15 00-7

DIVISION 9 – FINISHES

Section 09 29 00 Gypsum Board Section 09 90 00 Painting

DIVISION 10 – SPECIALTIES N/A

DIVISION 11 – EQUIPMENT N/A

DIVISION 12 – FURNISHINGS N/A

DIVISION 13 – SPECIAL CONSTRUCTION N/A

DIVISION 14 – CONVEYING SYSTEMS N/A

DIVISION 21 – FIRE SUPPRESSION N/A

VOLUME 2

DIVISION 22 – PLUMBING

Section 22 08 00 Commissioning of Plumbing Section 22 14 13 Facility Storm Drainage Piping

DIVISION 23 – HEATING VENTILATING AND AIR CONDITIONING

Section 23 05 00 Common Work Results For Hvac Section 23 05 13 Common Motor Requirements For Hvac Section 23 05 16 Expansion Fittings And Loops For Hvac Piping Section 23 05 19 Meters And Gages For Hvac Piping Section 23 05 23 General Duty Valves For Hvac Piping Section 23 05 25 Variable Frequency Drives for HVAC Systems Section 23 05 29 Hangers And Supports For Hvac Piping And Equipment Section 23 05 48 Vibration And Seismic Controls For Hvac Piping and Equipment Section 23 05 53 Identification For Hvac Piping And Equipment Section 23 05 93 Testing, Adjusting, And Balancing For Hvac Section 23 07 00 HVAC Insulation Section 23 08 00 Commissioning of HVAC Section 23 09 00 Instrumentation And Controls For Hvac Section 23 21 23 Hydronic Pumps Section 23 22 13 Steam and Condensate Heating Piping Section 23 23 00 Refrigeration Piping Section 23 25 00 HVAC Water Treatment Section 23 31 13 Metal Ducts Section 23 33 00 Air Duct Accessories Section 23 34 16 Centrifugal Hvac Fans Section 23 36 00 Air Terminal Units Section 23 37 13 Diffusers, Registers, And Grilles

CFSL HVAC REPAIRS AND ENERGY UPGRADES 00 15 00-8

Section 23 41 00 Particulate Air Filtration Section 23 57 00 Heat Exchangers For HVAC Section 23 62 00 Refrigeration Condensers/Condensing Units Section 23 63 13 Air-Cooled Fluid Coolers Section 23 73 13 Custom Indoor Central-Station Air-Handling Units Section 23 74 13 Packaged, Outdoor, Central Station Air Handling Units Section 23 82 19 Fan Coil Units

DIVISION 26 – ELECTRICAL

Section 26 05 00 Common Work Results For Electrical Section 26 05 19 Low-Voltage Electrical Power Conductors and Cables Section 26 05 26 Grounding And Bonding For Electrical Systems Section 26 05 33 Raceway And Boxes For Electrical Systems Section 26 05 48 Vibration And Seismic Controls For Electrical Systems Section 26 08 00 Commissioning of Electrical Systems Section 26 24 13 Switchboards Section 26 24 16 Panelboards Section 26 27 26 Wiring Devices Section 26 28 13 Fuses Section 26 28 16 Enclosed Switches And Circuit Breakers Section 26 33 53 Static Uninterruptible Power Supply Section 26 43 13 Transient-Voltage Suppression For Low-Voltage Electrical

Power Circuits

DIVISION 27 – COMMUNICATIONS N/A

DIVISION 28 – ELECTRONIC SAFETY AND SECURITY

Section 28 31 11 Digital, Addressable Fire-Alarm System

DIVISION 31 – EARTHWORK N/A

DIVISION 32 – EXTERIOR IMPROVEMENTS N/A

DIVISION 33 – UTILITIES N/A

VOLUME 3

APPENDIX

Asbestos Survey Report for Maintenance & Renovation – Laboratory Services Wing Asbestos Survey Report for Maintenance & Renovation – North Wing Asbestos Survey Report for Maintenance & Renovation – Central Wing Asbestos Survey Report for Maintenance & Renovation – West Wing

END OF SECTION 00 15 00

CFSL HVAC REPAIRS AND ENERGY UPGRADES 220800 - 1

PNWRS COMMISSIONING OF PLUMBING

SECTION 220800

COMMISSIONING OF PLUMBING

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

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

B. OPR, BoD, and BoD-Plumbing documentation prepared by the Government contains requirements that apply to this Section.

1.2 SUMMARY

A. This Section includes requirements for commissioning the Plumbing system and its subsystems and equipment. This Section supplements the general requirements specified in Division 01 Section "General Commissioning Requirements."

B. Related Sections include the following:

1. Division 01 Section "General Commissioning Requirements" for general requirements for commissioning processes that apply to this Section.

2. Division 01 Section “Demonstration and Training” for requirements for commissioning requirements that apply to this Section.

3. Division 1 Submittals for requirements for submittals and submittal process.

1.3 DEFINITIONS

A. BoD: Basis of Design.

B. BoD-Plumbing: Plumbing systems basis of design.

C. CxA: Commissioning Authority.

D. OPR: Owner's Project Requirements.

E. Systems, Subsystems, and Equipment: Where these terms are used together or separately, they shall mean "as-built" systems, subsystems, and equipment.

CFSL HVAC REPAIRS AND ENERGY UPGRADES 220800 - 2

1.4 CONTRACTOR’S RESPONSIBILITIES

A. The following responsibilities are in addition to those specified in Division 01 Section "General Commissioning Requirements."

B. Each Contractor:

1. Attend procedures meeting for TAB Work.

2. With the Plumbing Subcontractor coordinate installations and connections between and among electrical and plumbing systems, subsystems, and equipment.

1.5 COMMISSIONING DOCUMENTATION

A. The following are in addition to documentation specified in Division 01 Section "General Commissioning Requirements."

B. BoD HVAC: Government will provide BoD-HVAC documents to the CxA and Contractor for use in developing the commissioning plan, systems manual, and operation and maintenance training plan.

C. Test Checklists: CxA shall develop test checklists for Plumbing systems, subsystems, and equipment, including interfaces and interlocks with other systems. CxA shall prepare separate checklists for each mode of operation and provide space to indicate whether the mode under test responded as required. In addition to the requirements specified in Division 01 Section "General Commissioning Requirements," checklists shall include, but not be limited to, the following:

1. Calibration of sensors and sensor function.

2. Testing conditions under which test was conducted, including (as applicable) ambient conditions, set points, override conditions, and status and operating conditions that impact the results of test.

3. Strength of control signal for each set point at specified conditions.

4. Responses to control signals at specified conditions.

5. Sequence of response(s) to control signals at specified conditions.

6. Electrical demand or power input at specified conditions.

7. Power quality and related measurements.

8. Expected performance of systems, subsystems, and equipment at each step of test.

9. Narrative description of observed performance of systems, subsystems, and equipment. Notation to indicate whether the observed performance at each step meets the expected results.

10. Interaction of auxiliary equipment.

11. Issues log.

CFSL HVAC REPAIRS AND ENERGY UPGRADES 220800 - 3

1.6 SUBMITTALS

A. The following submittals are in addition to those specified in Division 01 Section "General Commissioning Requirements."

B. Testing Procedures: CxA shall submit detailed testing plan, procedures, and checklists for each series of tests. Submittals shall include samples of data reporting sheets that will be part of the reports.

C. Certificate of Readiness: CxA shall compile certificates of readiness from each Contractor certifying that systems, subsystems, equipment, and associated controls are ready for testing.

D. Certificate of Completion of Installation, Prestart, and Startup: CxA shall certify that installation, prestart, and startup activities have been completed.

E. Certified Pipe Cleaning and Flushing Report: CxA shall certify that pipe cleaning, flushing, hydrostatic testing, and chemical treating have been completed.

F. Test and Inspection Reports: CxA shall compile and submit test and inspection reports and certificates, and shall include them in systems manual and commissioning report.

G. Corrective Action Documents: CxA shall submit corrective action documents.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION

3.1 TESTING PREPARATION

A. Prerequisites for Testing:

1. Certify that Plumbing systems, subsystems, and equipment have been completed, calibrated, and started; are operating according to the OPR, BoD, and Contract Documents; and that Certificates of Readiness are signed and submitted.

2. Test systems and intersystem performance after approval of test checklists for systems, subsystems, and equipment.

3. Set systems, subsystems, and equipment into operating mode to be tested (e.g., normal shut down, normal auto position, normal manual position, unoccupied cycle, emergency power, and alarm conditions).

4. Verify each operating cycle after it has been running for a specified period and is operating in a steady-state condition.

5. Inspect and verify the position of each device and interlock identified on checklists. Sign off each item as acceptable, or failed. Repeat this test for each operating cycle that applies to system being tested.

CFSL HVAC REPAIRS AND ENERGY UPGRADES 220800 - 4

6. Check safety cutouts, alarms, and interlocks with other building systems during each mode of operation.

7. Annotate checklist or data sheet when a deficiency is observed.

8. Verify proper responses of monitoring and control system controllers and sensors to include the following:

a. For each controller or sensor, record the indicated monitoring and control system reading and the test instrument reading. If initial test indicates that the test reading is outside of the control range of the installed device, check calibration of the installed device and adjust as required. Retest malfunctioning devices and record results on checklist or data sheet.

b. Report deficiencies and prepare an issues log entry.

9. Verify that plumbing equipment field quality-control testing has been completed and approved. CxA shall direct, witness, and document field quality-control tests, inspections, and startup specified in individual Division 22 Sections.

3.2 TESTING

A. Test systems and intersystem performance after test checklists for systems, subsystems, and equipment have been approved.

B. Perform tests using design conditions whenever possible.

1. Simulate conditions by imposing an artificial load when it is not practical to test under design conditions and when written approval for simulated conditions is received from CxA. Before simulating conditions, calibrate testing instruments.

Set and document simulated conditions and methods of simulation. After tests, return settings to normal operating conditions.

2. Alter set points when simulating conditions is not practical and when written approval is received from CxA.

3. Alter sensor values with a signal generator when design or simulating conditions and altering set points are not practical. Do not use sensor to act as signal generator to simulate conditions or override values.

C. Scope of Plumbing Subcontractor Testing:

1. Testing scope shall include entire Plumbing installation, from central equipment through distribution systems to each fixture.

D. Detailed Testing Procedures: CxA, with Plumbing Subcontractor shall prepare detailed testing plans, procedures, and checklists for Plumbing systems, subsystems, and equipment.

E. Pipe cleaning, flushing, hydrostatic tests and chemical treatment requirements are specified in Division 22 piping Sections. Plumbing Subcontractor shall prepare pipe system cleaning, flushing, and hydrostatic testing. CxA shall review and comment on

CFSL HVAC REPAIRS AND ENERGY UPGRADES 220800 - 5

plan and final reports. CxA shall certify that pipe cleaning, flushing, hydrostatic tests, and chemical treatment have been completed. Plan shall include the following:

1. Sequence of testing and testing procedures for each section of pipe to be tested, identified by pipe zone or sector identification marker. Markers shall be keyed Drawings for each pipe sector showing the physical location of each designated pipe test section. Drawings keyed to pipe zones or sectors shall be formatted to allow each section of piping to be physically located and identified when referred to in pipe system cleaning, flushing, hydrostatic testing, and chemical treatment plan.

2. Description of equipment for flushing operations.

3. Minimum flushing water velocity.

4. Tracking checklist for managing and ensuring that all pipe sections have been cleaned, flushed, hydrostatically tested, and chemically treated.

F. Heat-Generation System Testing: Plumbing Subcontractor shall prepare a testing plan to verify performance of domestic hot water heaters, water tempering stations, water softening systems, and auxiliary equipment. Plan shall include the following:

1. Sequence of testing and testing procedures for each item of equipment and section of pipe to be tested, identified by identification marker. Markers shall be keyed to Drawings for each pipe sector showing the physical location of each item of equipment and pipe test section. Drawings shall be formatted to allow each item of equipment and section of piping to be physically located and identified when referred to in the system testing plan.

2. Tracking checklist for managing and ensuring that all pipe sections have been tested.

G. Refrigeration System Testing: Plumbing Subcontractor shall prepare a testing plan to verify performance of domestic water cooling equipment containing refrigerant compressors and condensers.

H. Plumbing Distribution System Testing: Plumbing Subcontractor shall prepare a testing plan to verify performance of compressed air, medical gas, and domestic water distribution systems and specialty plumbing systems. Include Plumbing fixtures and other equipment. Plan shall include the following:

1. Sequence of testing and testing procedures for each item of equipment and section of pipe to be tested, identified by identification marker. Markers shall be keyed to Drawings showing the physical location of each item of equipment and pipe test section. Drawings shall be formatted to allow each item of equipment and section of piping to be physically located and identified when referred to in the system testing plan.

2. Tracking checklist for managing and ensuring that all pipe sections have been tested.

I. Equipment, Systems and Assemblies to be tested:

CFSL HVAC REPAIRS AND ENERGY UPGRADES 220800 - 6

1. Domestic hot water heating system

J. Deferred Testing:

1. If tests cannot be completed because of a deficiency outside the scope of the Plumbing system, the deficiency shall be documented and reported to Contracting Officer. Deficiencies shall be resolved and corrected by appropriate parties and test rescheduled.

K. Testing Reports:

1. Reports shall include measured data, data sheets, and a comprehensive summary describing the operation of systems at the time of testing.

2. Include data sheets for each controller and terminal fixture to verify proper operation of the plumbing system, the system it serves, the service it provides, and its location.

3. Prepare a preliminary test report. Deficiencies will be evaluated by Contracting Officer to determine corrective action. Deficiencies shall be corrected and test repeated.

4. If it is determined that the system is constructed according to the Contract Documents, Contracting Officer will decide whether modifications required to bring the performance of the system to the OPR and BoD documents shall be implemented or if tests will be accepted as submitted. If corrective Work is performed, Contracting Officer will decide if tests shall be repeated and a revised report submitted.

END OF SECTION 220800

CFSL HVAC REPAIRS AND ENERGY UPGRADES 221413 - 1

PNWRS FACILITY STORM DRAINAGE PIPING

SECTION 221413

FACILITY STORM DRAINAGE PIPING

PART 1 – GENERAL

1.1 SUMMARY

A. This Section includes the following storm drainage piping inside the building.

1. Pipe, tube, and fittings.

2. Special pipe fittings.

1.2 PERFORMANCE REQUIREMENTS

A. Components and installation shall be capable of withstanding the following minimum working pressure, unless otherwise indicated:

1. Storm Drainage Piping: 10-foot head of water (30 kPa).

PART 2 – PRODUCTS

B. PIPING MATERIALS

1. Hub-and-Spigot, Cast-Iron Pipe and Fittings: ASTM A 74, Service class.

2. Gaskets: ASTM C 564, rubber.

3. Hubless Cast-Iron Pipe and Fittings: ASTM A 888 or CISPI 301.

4. Shielded Couplings: ASTM C 1277 assembly of metal shield or housing, corro-sion-resistant fasteners, and rubber sleeve with integral, center pipe stop.

5. Standard, Shielded, Stainless-Steel Couplings: CISPI 310, with stainless-steel corrugated shield; stainless-steel bands and tightening devices; and ASTM C 564, rubber sleeve.

a. Heavy-Duty, Shielded, Stainless-Steel Couplings: With stainless-steel shield, stainless-steel bands and tightening devices, and ASTM C 564, rubber sleeve.

C. Steel Pipe: ASTM A 53/A 53M, Type E or S, Grade A or B, Schedule 40, galvanized.

Include ends matching joining method.

1. Drainage Fittings: ASME B16.12, galvanized, threaded, cast-iron drainage pat-tern.

2. Pressure Fittings:

a. Steel Pipe Nipples: ASTM A 733, made of ASTM A 53/A 53M or

ASTM A 106, Schedule 40, galvanized, seamless steel pipe. Include ends matching joining method.

CFSL HVAC REPAIRS AND ENERGY UPGRADES 221413 - 2

b. Malleable-Iron Unions: ASME B16.39; Class 150; hexagonal-stock body with ball-and-socket, metal-to-metal, bronze seating surface; and female threaded ends.

c. Gray-Iron, Threaded Fittings: ASME B16.4, Class 125, galva-nized, standard pattern.

d. Cast-Iron Flanges: ASME B16.1, Class 125.

e. Cast-Iron, Flanged Fittings: ASME B16.1, Class 125, galvanized.

PART 3 – EXECUTION

2.1 PIPING APPLICATIONS

A. Special pipe fittings with pressure ratings at least equal to piping pressure ratings may be used in applications below, unless otherwise indicated.

B. Aboveground storm drainage piping NPS 6 (DN 150) and smaller shall be any of the following:

1. Service class, cast-iron soil pipe and fittings; gaskets; and gasketed joints.

2. Hubless cast-iron soil pipe and fittings; standard, shielded, stainless-steel cou-plings; and coupled joints.

3. Steel pipe, drainage fittings, and threaded joints.

2.2 PIPING INSTALLATION

A. Basic piping installation requirements are specified in Division 23 Section "Common Work Results for HVAC."

B. Install cast-iron soil piping according to CISPI's "Cast Iron Soil Pipe and Fittings Handbook," Chapter IV, "Installation of Cast Iron Soil Pipe and Fittings."

C. Make changes in direction for storm piping using appropriate branches, bends, and long-sweep bends. Do not change direction of flow more than 90 degrees. Use proper size of standard increasers and reducers if pipes of different sizes are connected. Re-ducing size of drainage piping in direction of flow is prohibited.

D. Install storm drainage piping at the following minimum slopes, unless otherwise indi-cated:

1. Building Storm Drain: 1 percent downward in direction of flow for piping NPS 3 (DN 80) and smaller; 1 percent downward in direction of flow for piping NPS 4 (DN 100) and larger.

2. Horizontal Storm-Drainage Piping: 2 percent downward in direction of flow.

E. Do not enclose, cover, or put piping into operation until it is inspected and approved by authorities having jurisdiction.

CFSL HVAC REPAIRS AND ENERGY UPGRADES 221413 - 3

2.3 JOINT CONSTRUCTION

A. Hub-and-Spigot, Cast-Iron Soil Piping Gasketed Joints: Join according to CISPI's "Cast Iron Soil Pipe and Fittings Handbook" for compression joints.

B. Hubless Cast-Iron Soil Piping Coupled Joints: Join according to CISPI 310 and CIS- PI's "Cast Iron Soil Pipe and Fittings Handbook" for hubless-coupling joints.

2.4 HANGER AND SUPPORT INSTALLATION

A. Pipe hangers and supports are specified in Division 23 Section "Hangers and Supports for HVAC Piping and Equipment." Install the following:

1. Vertical Piping: MSS Type 8 or Type 42, clamps.

2. Individual, Straight, Horizontal Piping Runs: According to the following:

a. 100 Feet (30 m) and Less: MSS Type 1, adjustable, steel clevis hangers.

b. Longer Than 100 Feet (30 m): MSS Type 43, adjustable roller hangers.

c. Longer Than 100 Feet (30 m), if Indicated: MSS Type 49, spring cushion rolls.

3. Multiple, Straight, Horizontal Piping Runs 100 Feet (30 m) or Longer: MSS Type 44, pipe rolls. Support pipe rolls on trapeze.

4. Base of Vertical Piping: MSS Type 52, spring hangers.

B. Install supports according to Division 23 Section "Hangers and Supports for HVAC Piping and Equipment."

C. Support vertical piping and tubing at base and at each floor.

D. Rod diameter may be reduced 1 size for double-rod hangers, with 3/8-inch (10-mm) minimum rods.

E. Install hangers for cast-iron soil piping with the following maximum horizontal spac-ing and minimum rod diameters:

1. NPS 1-1/2 and NPS 2 (DN 40 and DN 50): 60 inches (1500 mm) with 3/8-inch (10-mm) rod.

2. NPS 3 (DN 80): 60 inches (1500 mm) with 1/2-inch (13-mm) rod.

3. NPS 4 and NPS 5 (DN 100 and DN 125): 60 inches (1500 mm) with 5/8-inch

(16-mm) rod.

4. NPS 6 (DN 150): 60 inches (1500 mm) with 3/4-inch (19-mm) rod.

5. Spacing for 10-foot (3-m) lengths may be increased to 10 feet (3 m). Spacing for fittings is limited to 60 inches (1500 mm).

F. Install supports for vertical cast-iron soil piping every 15 feet (4.5 m).

CFSL HVAC REPAIRS AND ENERGY UPGRADES 221413 - 4

G. Install hangers for steel piping with the following maximum horizontal spacing and minimum rod diameters:

1. NPS 1-1/4 (DN 32): 84 inches (2100 mm) with 3/8-inch (10-mm) rod.

2. NPS 1-1/2 (DN 40): 108 inches (2700 mm) with 3/8-inch (10-mm) rod.

3. NPS 2 (DN 50): 10 feet (3 m) with 3/8-inch (10-mm) rod.

4. NPS 2-1/2 (DN 65): 11 feet (3.4 m) with 1/2-inch (13-mm) rod.

5. NPS 3 (DN 80): 12 feet (3.7 m) with 1/2-inch (13-mm) rod.

6. NPS 4 and NPS 5 (DN 100 and DN 125): 12 feet (3.7 m) with 5/8-inch (16-

mm) rod.

7. NPS 6 (DN 150): 12 feet (3.7 m) with 3/4-inch (19-mm) rod.

H. Install supports for vertical steel piping every 15 feet (4.5 m).

I. Install hangers for copper tubing with the following maximum horizontal spacing and minimum rod diameters:

1. NPS 1-1/4 (DN 32): 72 inches (1800 mm) with 3/8-inch (10-mm) rod.

2. NPS 1-1/2 and NPS 2 (DN 40 and DN 50): 96 inches (2400 mm) with 3/8-inch

(10-mm) rod.

3. NPS 2-1/2 (DN 65): 108 inches (2700 mm) with 1/2-inch (13-mm) rod.

4. NPS 3 to NPS 5 (DN 80 to DN 125): 10 feet (3 m) with 1/2-inch (13-mm) rod.

5. NPS 6 (DN 150): 10 feet (3 m) with 5/8-inch (16-mm) rod.

2.5 FIELD QUALITY CONTROL

A. During installation, notify authorities having jurisdiction at least 24 hours before in-spection must be made. Perform tests specified below in presence of authorities hav-ing jurisdiction.

1. Roughing-in Inspection: Arrange for inspection of piping before concealing or closing-in after roughing-in.

2. Final Inspection: Arrange for final inspection by authorities having jurisdiction to observe tests specified below and to ensure compliance with requirements.

B. Reinspection: If authorities having jurisdiction find that piping will not pass test or in-spection, make required corrections and arrange for reinspection.

C. Reports: Prepare inspection reports and have them signed by authorities having juris-diction.

D. Test storm drainage piping according to procedures of authorities having jurisdiction.

2.6 CLEANING

A. Clean interior of piping. Remove dirt and debris as work progresses.

CFSL HVAC REPAIRS AND ENERGY UPGRADES 221413 - 5

B. Protect drains during remainder of construction period to avoid clogging with dirt and debris and to prevent damage from traffic and construction work.

C. Place plugs in ends of uncompleted piping at end of day and when work stops.

END OF SECTION 221413

CFSL HVAC REPAIRS AND ENERGY UPGRADES 230500 - 1

PNWRS COMMON WORK RESULTS FOR HVAC

SECTION 230500

COMMON WORK RESULTS FOR HVAC

PART 1 – GENERAL

1.1 SUMMARY

A. This Section includes the following:

1. Piping materials and installation instructions common to most piping systems.

2. Dielectric fittings.

3. Mechanical sleeve seals.

4. Sleeves.

5. Escutcheons.

6. Grout.

7. HVAC demolition.

8. Equipment installation requirements common to equipment sections.Concrete bases.

9. Supports and anchorages.

1.2 DEFINITIONS

A. Finished Spaces: Spaces other than mechanical and electrical equipment rooms, furred spaces, pipe and duct chases, unheated spaces immediately below roof, spaces above ceilings, unexcavated spaces, crawlspaces, and tunnels.

B. Exposed, Interior Installations: Exposed to view indoors. Examples include finished occupied spaces and mechanical equipment rooms.

C. Exposed, Exterior Installations: Exposed to view outdoors or subject to outdoor ambi-ent temperatures and weather conditions. Examples include rooftop locations.

D. Concealed, Interior Installations: Concealed from view and protected from physical contact by building occupants. Examples include above ceilings and chases.

E. Concealed, Exterior Installations: Concealed from view and protected from weather conditions and physical contact by building occupants but subject to outdoor ambient temperatures. Examples include installations within unheated shelters.

1.3 SUBMITTALS

A. Welding certificates.

1.4 QUALITY ASSURANCE

A. Steel Support Welding: Qualify processes and operators according to AWS D1.1, "Structural Welding Code--Steel."

CFSL HVAC REPAIRS AND ENERGY UPGRADES 230500 - 2

B. Steel Pipe Welding: Qualify processes and operators according to ASME Boiler and Pressure Vessel Code: Section IX, "Welding and Brazing Qualifications."

1. Comply with provisions in ASME B31 Series, "Code for Pressure Piping."

2. Certify that each welder has passed AWS qualification tests for welding pro-cesses involved and that certification is current.

C. Electrical Characteristics for HVAC Equipment: Equipment of higher electrical char-acteristics may be furnished provided such proposed equipment is approved in writing and connecting electrical services, circuit breakers, and conduit sizes are appropriately modified. If minimum energy ratings or efficiencies are specified, equipment shall comply with requirements.

PART 2 – PRODUCTS

2.1 PIPE, TUBE, AND FITTINGS

A. Refer to individual Division 23 piping Sections for pipe, tube, and fitting materials and joining methods.

B. Pipe Threads: ASME B1.20.1 for factory-threaded pipe and pipe fittings.

2.2 JOINING MATERIALS

A. Refer to individual Division 23 piping Sections for special joining materials not listed below.

B. Pipe-Flange Gasket Materials: ASME B16.21, nonmetallic, flat, asbestos-free, 1/8-inch (3.2-mm) maximum thickness unless thickness or specific material is indicated.

C. Plastic, Pipe-Flange Gasket, Bolts, and Nuts: Type and material recommended by pip-ing system manufacturer, unless otherwise indicated.

D. Solder Filler Metals: ASTM B 32, lead-free alloys. Include water-flushable flux ac-cording to ASTM B 813.

E. Brazing Filler Metals: AWS A5.8, BCuP Series or BAg1, unless otherwise indicated.

F. Welding Filler Metals: Comply with AWS D10.12.

G. Solvent Cements for Joining Plastic Piping:

1. CPVC Piping: ASTM F 493.

2. PVC Piping: ASTM D 2564. Include primer according to ASTM F 656.

CFSL HVAC REPAIRS AND ENERGY UPGRADES 230500 - 3

2.3 DIELECTRIC FITTINGS

A. Description: Combination fitting of copper alloy and ferrous materials with threaded, solder-joint, plain, or weld-neck end connections that match piping system materials.

B. Insulating Material: Suitable for system fluid, pressure, and temperature.

C. Dielectric Unions: Factory-fabricated, union assembly, for 250-psig (1725-kPa) min-imum working pressure at 180 deg F (82 deg C).

D. Dielectric Flanges: Factory-fabricated, companion-flange assembly, for 150- or 300-psig (1035- or 2070-kPa) minimum working pressure as required to suit system pres-sures.

E. Dielectric Couplings: Galvanized-steel coupling with inert and noncorrosive, thermo-plastic lining; threaded ends; and 300-psig (2070-kPa) minimum working pressure at 225 deg F (107 deg C).

F. Dielectric Nipples: Electroplated steel nipple with inert and noncorrosive, thermo-plastic lining; plain, threaded, or grooved ends; and 300-psig (2070-kPa) minimum working pressure at 225 deg F (107 deg C).

2.4 MECHANICAL SLEEVE SEALS

A. Description: Modular sealing element unit, designed for field assembly, to fill annular space between pipe and sleeve.

B. Sealing Elements: NBR interlocking links shaped to fit surface of pipe. Include type and number required for pipe material and size of pipe.

C. Pressure Plates: Carbon steel. Include two for each sealing element.

D. Connecting Bolts and Nuts: Carbon steel with corrosion-resistant coatingof length re-quired to secure pressure plates to sealing elements. Include one for each sealing ele-ment.

2.5 SLEEVES

A. Galvanized-Steel Sheet: 0.0239-inch (0.6-mm) minimum thickness; round tube closed with welded longitudinal joint.

B. Steel Pipe: ASTM A 53, Type E, Grade B, Schedule 40, galvanized, plain ends.

C. Cast Iron: Cast or fabricated "wall pipe" equivalent to ductile-iron pressure pipe, with plain ends and integral waterstop, unless otherwise indicated.

D. Stack Sleeve Fittings: Manufactured, cast-iron sleeve with integral clamping flange.

Include clamping ring and bolts and nuts for membrane flashing.

CFSL HVAC REPAIRS AND ENERGY UPGRADES 230500 - 4

1. Underdeck Clamp: Clamping ring with set screws.

E. Molded PVC: Permanent, with nailing flange for attaching to wooden forms. Not available for use in concrete core wall penetrations or in airflow plenums (2nd Floor of Lab Services Wing)

F. PVC Pipe: ASTM D 1785, Schedule 40. Not available for use in concrete core wall penetrations or in airflow plenums (2nd Floor of Lab Services Wing)pered-cup shaped, and smooth-outer surface with nailing flange for attaching to wooden forms.

2.6 ESCUTCHEONS

A. Description: Manufactured wall and ceiling escutcheons and floor plates, with an ID to closely fit around pipe, tube, and insulation of insulated piping and an OD that completely covers opening.

B. One-Piece, Deep-Pattern Type: Deep-drawn, box-shaped brass with polished chrome-plated finish.

C. One-Piece, Cast-Brass Type: With set screw.

1. Finish: Rough brass

D. Split-Casting, Cast-Brass Type: With concealed hinge and set screw.

1. Finish: Rough brass

2.7 GROUT

A. Description: ASTM C 1107, Grade B, nonshrink and nonmetallic, dry hydraulic-cement grout.

1. Characteristics: Post-hardening, volume-adjusting, nonstaining, noncorrosive, nongaseous, and recommended for interior and exterior applications.

2. Design Mix: 5000-psi (34.5-MPa), 28-day compressive strength.

3. Packaging: Premixed and factory packaged.

PART 3 – EXECUTION

3.1 HVAC DEMOLITION

A. Refer to Division 01 Section "Cutting and Patching" and Division 02 Section "Selec-tive Structure Demolition" for general demolition requirements and procedures.

B. Hazardous materials may existing within components of the building. Review asbes-tos abatement report for the facility and report any suspected hazardous material to the CO before performing any work that might disturb the material.

CFSL HVAC REPAIRS AND ENERGY UPGRADES 230500 - 5

C. Coordinate all demolition work with contracting officer and provide temporary facili-ties for all laboratory spaces disrupted by construction. Provide a temporary air han-dler and exhaust fans where necessary to maintain airflow to labs during demolition.

D. Disconnect, demolish, and remove HVAC systems, equipment, and components indi-cated to be removed.

1. Piping to Be Removed: Remove portion of piping indicated to be removed and cap or plug remaining piping with same or compatible piping material.

2. Piping to Be Abandoned in Place: Drain piping and cap or plug piping with same or compatible piping material.

3. Ducts to Be Removed: Remove portion of ducts indicated to be removed and plug remaining ducts with same or compatible ductwork material.

4. Ducts to Be Abandoned in Place: Cap or plug ducts with same or compatible ductwork material.

5. Equipment to Be Removed: Disconnect and cap services and remove equipment.

6. Equipment to Be Removed and Reinstalled: Disconnect and cap services and re-move, clean, and store equipment; when appropriate, reinstall, reconnect, and make equipment operational.

7. Equipment to Be Removed and Salvaged: Disconnect and cap services and re-move equipment and deliver to Owner.

8. Controls to be removed: all pneumatic controls, tubing and devices including pneumatic to electrical devices.

E. If pipe, insulation, or equipment to remain is damaged in appearance or is unservicea-ble, remove damaged or unserviceable portions and replace with new products of equal capacity and quality.

3.2 PIPING SYSTEMS - COMMON REQUIREMENTS

A. Install piping according to the following requirements and Division 23 Sections speci-fying piping systems.

B. Drawing plans, schematics, and diagrams indicate general location and arrangement of piping systems. Indicated locations and arrangements were used to size pipe and cal-culate friction loss, expansion, pump sizing, and other design considerations. Install piping as indicated unless deviations to layout are approved on Coordination Draw-ings.

C. Install piping in concealed locations, unless otherwise indicated and except in equip-ment rooms and service areas.

D. Install piping indicated to be exposed and piping in equipment rooms and service areas at right angles or parallel to building walls. Diagonal runs are prohibited unless spe-cifically indicated otherwise.

E. Install piping above accessible ceilings to allow sufficient space for ceiling panel re-moval.

CFSL HVAC REPAIRS AND ENERGY UPGRADES 230500 - 6

F. Install piping to permit valve servicing.

G. Install piping at indicated slopes.

H. Install piping free of sags and bends.

I. Install fittings for changes in direction and branch connections.

J. Install piping to allow application of insulation.

K. Select system components with pressure rating equal to or greater than system operat-ing pressure.

L. Install escutcheons for penetrations of walls, ceilings, and floors.

M. Install sleeves for pipes passing through concrete and masonry walls, gypsum-board partitions, and concrete floor and roof slabs.

N. Aboveground, Exterior-Wall Pipe Penetrations: Seal penetrations using sleeves and mechanical sleeve seals. Select sleeve size to allow for 1-inch (25-mm) annular clear space between pipe and sleeve for installing mechanical sleeve seals.

1. Install steel pipe for sleeves smaller than 6 inches (150 mm) in diameter.

2. Install cast-iron "wall pipes" for sleeves 6 inches (150 mm) and larger in diame-ter.

3. Mechanical Sleeve Seal Installation: Select type and number of sealing elements required for pipe material and size. Position pipe in center of sleeve. Assemble mechanical sleeve seals and install in annular space between pipe and sleeve.

Tighten bolts against pressure plates that cause sealing elements to expand and make watertight seal.

O. Fire-Barrier Penetrations: Maintain indicated fire rating of walls, partitions, ceilings, and floors at pipe penetrations. Seal pipe penetrations with firestop materials. Refer to Division 07 Section "Penetration Firestopping" for materials.

P. Verify final equipment locations for roughing-in.

Q. Refer to equipment specifications in other Sections of these Specifications for rough-ing-in requirements.

3.3 PIPING JOINT CONSTRUCTION

A. Join pipe and fittings according to the following requirements and Division 23 Sec-tions specifying piping systems.

B. Ream ends of pipes and tubes and remove burrs. Bevel plain ends of steel pipe.

C. Remove scale, slag, dirt, and debris from inside and outside of pipe and fittings before assembly.

CFSL HVAC REPAIRS AND ENERGY UPGRADES 230500 - 7

D. Soldered Joints: Apply ASTM B 813, water-flushable flux, unless otherwise indicat-ed, to tube end. Construct joints according to ASTM B 828 or CDA's "Copper Tube Handbook," using lead-free solder alloy complying with ASTM B 32.

E. Brazed Joints: Construct joints according to AWS's "Brazing Handbook," "Pipe and Tube" Chapter, using copper-phosphorus brazing filler metal complying with

AWS A5.8.

F. Threaded Joints: Thread pipe with tapered pipe threads according to ASME B1.20.1.

Cut threads full and clean using sharp dies. Ream threaded pipe ends to remove burrs and restore full ID. Join pipe fittings and valves as follows:

1. Apply appropriate tape or thread compound to external pipe threads unless dry seal threading is specified.

2. Damaged Threads: Do not use pipe or pipe fittings with threads that are corroded or damaged. Do not use pipe sections that have cracked or open welds.

G. Welded Joints: Construct joints according to AWS D10.12, using qualified processes and welding operators according to Part 1 "Quality Assurance" Article.

H. Flanged Joints: Select appropriate gasket material, size, type, and thickness for ser-vice application. Install gasket concentrically positioned. Use suitable lubricants on bolt threads.

3.4 PIPING CONNECTIONS

A. Make connections according to the following, unless otherwise indicated:

1. Install unions, in piping NPS 2 (DN 50) and smaller, adjacent to each valve and at final connection to each piece of equipment.

2. Install flanges, in piping NPS 2-1/2 (DN 65) and larger, adjacent to flanged valves and at final connection to each piece of equipment.

3. Dry Piping Systems: Install dielectric unions and flanges to connect piping mate-rials of dissimilar metals.

4. Wet Piping Systems: Install dielectric coupling and nipple fittings to connect pip-ing materials of dissimilar metals.

3.5 EQUIPMENT INSTALLATION - COMMON REQUIREMENTS

A. Install equipment to allow maximum possible headroom unless specific mounting heights are not indicated.

B. Install equipment level and plumb, parallel and perpendicular to other building sys-tems and components in exposed interior spaces, unless otherwise indicated.

C. Install HVAC equipment to facilitate service, maintenance, and repair or replacement of components. Connect equipment for ease of disconnecting, with minimum interfer-ence to other installations. Extend grease fittings to accessible locations.

CFSL HVAC REPAIRS AND ENERGY UPGRADES 230500 - 8

D. Install equipment to allow right of way for piping installed at required slope.

3.6 CONCRETE BASES

A. Concrete Bases: Anchor equipment to concrete base according to equipment manu-facturer's written instructions and according to seismic codes at Project.

1. Construct concrete bases of dimensions indicated, but not less than 4 inches (100 mm) larger in both directions than supported unit.

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

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

4. Place and secure anchorage devices. Use supported equipment manufacturer's setting drawings, templates,…