SOW_Wichita_Mtn_WR_Visitor_Center_HVAC.pdf

SPECIFICATIONS

VISITOR CENTER HVAC REPLACEMENT

WICHITA MOUNTAIN WILDLIFE REFUGE

Submitted to:

US Fish and Wildlife Service Wichita Mountains Wildlife Refuge 32 Refuge Headquarters Indiahoma, OK 73552-960 Comanchee County OK Attention: Tom Ketcham and Mark Orton

Submitted by:

Wood Environment & Infrastructure Solutions, Inc.

511 Congress Street, Suite 200 Portland, ME 04101 Certificate of Authorization NO. 4438 Contact: John Peterson

April 2021 – Issued for Construction

SIGNED 4/7/21 04/09/21

WICHITA MOUNTAINS WR

LAWTON COUNTY, OKLAHOMA

VISITOR CENTER HVAC REPLACEMENT

2021 April

Division Section Title

Table of Contents

DIVISION 01 – GENERAL REQUIREMENTS

01009 GENERAL INFORMATION AND REQUIREMENTS

DIVISION 02 - EXISTING CONDITIONS

024119 SELECTIVE DEMOLITION

DIVISION 23 - HEATING, VENTILATING, AND AIR CONDITIONING (HVAC)

230130.52 EXISTING HVAC AIR DISTRIBUTION SYSTEM CLEANING

230513 COMMON MOTOR REQUIREMENTS FOR HVAC EQUIPMENT

230516 EXPANSION FITTINGS AND LOOPS FOR HVAC PIPING

230517 SLEEVES AND SLEEVE SEALS FOR HVAC PIPING

230519 METERS AND GAGES FOR HVAC PIPING

230529 HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT

230548.13 VIBRATION CONTROLS FOR HVAC

230553 IDENTIFICATION FOR HVAC PIPING AND EQUIPMENT

230593 TESTING, ADJUSTING, AND BALANCING FOR HVAC

230713 DUCT INSULATION

230719 HVAC PIPING INSULATION

230800 COMMISSIONING OF HVAC

230923 DIRECT DIGITAL CONTROL (DDC) SYSTEM FOR HVAC

230923.27 TEMPERATURE INSTRUMENTS

232113 HYDRONIC PIPING

232116 HYDRONIC PIPING SPECIALTIES

232123 HYDRONIC PUMPS

232513 WATER TREATMENT FOR CLOSED-LOOP HYDRONIC SYSTEMS

233113 METAL DUCTS

233300 AIR DUCT ACCESSORIES

233713.23 REGISTERS AND GRILLES

234100 PARTICULATE AIR FILTRATION

237223.19 PACKAGED INDOOR FIXED PLATE ENERGY RECOVERY UNITS

238126 SPLIT-SYSTEM AIR-CONDITIONERS

238146.13 WATER-TO-AIR HEAT PUMPS

DIVISION 26 - ELECTRICAL

260519 LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES

260523 CONTROL-VOLTAGE ELECTRICAL POWER CABLES

260526 GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS

260533 RACEWAY AND BOXES FOR ELECTRICAL SYSTEMS

262816 ENCLOSED SWITCHES AND CIRCUIT BREAKERS

262913.03 MANUAL AND MAGNETIC MOTOR CONTROLLERS

262923 VARIABLE-FREQUENCY MOTOR CONTROLLERS

END OF TABLE OF CONTENTS

TABLE OF CONTENTS TOC - 1

VISITOR CENTER HVAC REPLACEMENT

2021 April Modified 2023 July

GENERAL INFORMATION AND REQUIREMENTS 01009-1

SECTION 01009 –GENERAL INFORMATION AND REQUIREMENTS

PART 1 - GENERAL

1.1 SUMMARY

A. GENERAL DESCRIPTION OF WORK REQUIRED IN THIS CONTRACT: The work shall consists of providing all labor, equipment, supplies and materials to:

1. Replace the existing 20 year old HVAC heat pump equipment, energy recovery equipment, water piping, water pumps and etc, with new equipment in the refuge’s Visitor Center,

2. Modify the building’s existing HVAC air duct system and water piping system as required to accommodate the new HVAC equipment and system operation,

3. Remove existing building HVAC control system and install NEW automated building HVAC control, monitoring and alarm system,

4. Modify existing building electrical systems to accommodate the new HVAC system,

5. Start-up, test, balance and commission new HVAC equipment and new

Monitoring/Alarm Control system,

6. All work shall comply with the specifications and as shown on the drawings herein.

B. WORK LOCATION: The work is located at the Wichita Mountain Wildlife Refuge Visitor

Center which located at Latitude 34° 42’39” X Longitude 98° 37’25” which is located approximately 15 miles NW of Lawton, Oklahoma. The refuge headquarters’ address is Wichita Mountains Wildlife Refuge, 32 Refuge Headquarters, 12 miles NW of Cache, OK, Indiahoma, OK 73552.

C. SITE VISIT: Contractors may visit project site and inspect existing conditions prior to submitting quotes. One site visit will be schedule thru the Contracting Officer before bidding- See Federal Acquisition Regulation (FAR) clause 52.236-27 “Site Visit”. Contact Amber Zimmerman - Refuge Manager, 580-429-2112 or Richard (Rick) Layton- Facility Operations Specialist (970) 308-9211 to be placed on the list for the scheduled site visit.

1.2 PERFORMANCE TIME: Performance time begins the day after the receipt of the Notice of Award. The performance time will be negotiable and the anticipated time required to complete the project shall be included in the provider’s price. The government anticipates the project shall be completed within 300 calendar days. The performance time shall include submitting the detailed technical material and equipment submittals, installation, testing, adjusting, reporting, clean-up, final inspection and project closeout.

1.3 REFERENCES

A. Referenced Specifications/Standards with Abbreviations and/or Acronyms: Wherever the following acronyms are used in these specifications or on the drawings, they are to be construed the same as the respective expressions represented. Copies of the referenced specifications/standards referred to herein may be procured by the Contractor, from the following:

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1. ACI - American Concrete Institute, P.O. Box 19150, Detroit, MI 48219.

2. ASHRAE – American Society of Heating, Refrigeration, and Air Conditioning

Engineers, INC., 1791 Tullie Circle, NE, Atlanta, GA 30329.

3. ASTM - American Society for Testing and Materials, 100 Barr Harbor Dr., West

Conshohocken PA 19428-2959.

4. AASHTO - American Association of State Highway and Transportation Officials, 444

North Capitol Street, N.W., Suite 249, Washington, DC 20001

5. EPA - Environmental Protection Agency, 401 M St., SW., Washington, DC 20460.

6. NFPA – National Fire Protection Association, 1 Batterymarch Park, Quincy, Massachusetts, 02169-7471.

7. OSHA - Occupational Safety and Health Administration, US Department of Labor, 200

Constitution Ave., NW, Washington DC 20210.

8. SMACNA – Sheet Metal and Air Conditioning Contractor’s National Association, Inc.

8224 Old Courthouse Rd, Vienna, Virginia. 22180.

1.4 SITE CONDITIONS

A. Asbestos Survey: No asbestos survey has been conducted at the site. NOTE: If any asbestos is identified during construction activities, immediately notify the Contracting Officer of the condition and of the required actions.

B. Contractor shall ensure all construction crews/personnel comply with Oklahoma State and local mandates in dealing COVID-19.

C. Potable water and 120Vac electric power is available for construction in limited quantities.

Contractor shall coordinate with refuge personnel to make necessary arrangements for the use of water and/or electrical power.

D. ELECTRICAL Power Availability for construction:

1. The building currently has 480/277 Vac, 3 phase electrical service to the building. It also additional step down transformers to serve numerous 208/120Vac, 3 phase distribution panels to provide electrical power throughout the building. Refer to electrical drawings for additional information.

2. 120Vac, 20Amp, 1 phase, electrical circuits/outlets at various locations are available for construction purposes at no cost to the contractor for construction activities.

3. IF construction activities require electrical power requirements other than 120Vac, 20Amp, the contractor shall provide the required electrical power circuits and outlets at no additional cost to the government.

E. WATER Availability during construction activities:

1. The Visitor has very limited amounts of Potable-Water; contractor shall provide drinking water for all construction crews.

2. Limited amounts of non-potable water is available for construction purposes.

3. It is anticipated “Porta-Potties” will not be required; construction crew may use the

Visitor Center’s restroom facility for personal uses only. It is expected the construction crews will cooperate in keeping the restrooms clean. If the restroom cleanliness become a problem to the visitor center staff, the CO will direct the contractor to provide and maintain “Porta-Potties” for all construction crews at no addition cost to the contractor.

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GENERAL INFORMATION AND REQUIREMENTS 01009-3

4. All water expenses incurred during the execution of the contract shall be incurred by the contractor.

F. Notify the Refuge Manager or his designee at least 72 hours in advance of any requested power outage for his/her approval.

G. EXISTING UNDERGROUND SURVEYS- Contractor shall conduct the following underground surveys to locate and mark any exiting underground utilities or water lines before performing any earth excavations or earth moving operations around the work site associated with the contract’s work execution:

1. Utility Locator Service: Notify local utility locator serving the Project area to locate and mark known utilities around the work site.

2. Contractor shall perform an underground survey for existing underground metallic pipe-lines, warning tapes, and electrical circuits before beginning any earth excavations or moving operations around the work site.

3. Contractor shall inquire and consult with refuge personnel to identify any known underground utility, service, electrical, phone, and etc. before beginning any earth excavations or moving operations around the work site.

H. Existing property not indicated for demolition, shall be protected. All damage by Contractor’s activities shall be repaired by the Contractor at no additional cost to the Government.

I. BEFORE PERFORMING ANY ON-SITE MODIFICATION to the existing mechanical, plumbing, electrical, control or alarm systems that are to remain, the contractor shall witness the current operational condition of the systems and note any malfunctioning equipment in the building. The government’s designated construction inspector (CI) shall demonstrate the operations of the various existing systems. This demonstration shall be documented in the CI’s daily log along with documenting any specific operational problems or existing condition issues. Both, the contractor’s designated on-site representative and the government CI shall sign the daily log agreeing to the current operation conditions. The government inspector shall provide copies of the signed daily log to the contractor, the Contracting Officer (CO), the refuge manager, and the Contracting Officer’s Representative (COR) before disturbing the existing system.

J. PROTECTION OF EXISTING LANDSCAPE: Protect all vegetation inside and outside work limits. All rutting caused by Contractor activities shall be filled and contoured to match adjacent areas. Areas damaged by Contractor activities shall be repaired at no addition cost to the government.

K. FACILITY SMOKING POLICY: Refuge management has designated all buildings on the refuge are SMOKING FREE buildings; NO person is allowed to smoke inside refuge buildings nor within 25 feet of any building. . All trash generated from such smoking activities must be removed from FWS grounds. Contractor shall be responsible to ensure all construction personnel complies with the facility’s policy.

1.5 SUBMITTALS

A. SUBMITTAL PROCEDURES AND REQUIRMENTS AFTER AWARD:

1. All Submittals, technical data for materials and supplies to be provided under the contract, Request for Information (RFI), and Request for Contract Changes, shall be

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delivered to the governments designated Contracting Officer (CO) and/or Contracting Officer’s Representative (COR) at U.S. Fish and Wildlife Service, Region 2, Division of Engineering, P.O. Box 1306, Albuquerque, NM 87103-1306. The designated COR will be assigned by the CO as part of the Contract Award Package along with their contact information.

2. Contractor shall email electronic (PDF) submittal drawings, specification, shop drawings and etc, to the designated government COR for review, comment, and approval. After reviewing the submittals, the CO/COR will return the appropriate electronic (PDF) comments and approvals by email to the contractor’s designated project manager.

Contractor shall be responsible for distributing the government’s review, comments and approvals to his suppliers and sub-contractors.

3. Submittals shall come directly from the Contractor with their stamp and signature of approval; submittals will not be accepted from sub-contractors or suppliers.

4. Do not commence with work which requires review of any submittals until receipt of returned submittals with an acceptable action. Do not allow materials requiring a an approved submittal on site for use on the project.

5. There will be no approval of technical data submittals prior to contract award.

6. All Technical Product Data, Description and Shop Drawings shall be submitted to the designated Contracting Officer’s Representative (COR) for review and approval before ordering or installing equipment. Submittals will be evaluated based on the contract requirements stated in the specifications and on the drawings. Refer to specification sections for submittals required. Unapproved equipment may not be accepted.

7. Each Technical Submittal shall have an appropriately filled out USFWS Submittal Transmittal Form (#REN-021) which will serve as a submittal summary and tracking device. The form will be provided as part of the Contract Award Package.

8. Each Technical Submittal shall be highlighted to clearly show contract compliance requirements and what options or features will be provided.

9. APPROVALS: Approval of the technical submittals is an indication that the Contractor's submittals have been reviewed and that there are no exceptions taken, except as noted.

Approval of deviations shall apply only to those deviations or omissions from the requirements of the drawings and specifications brought to the Contracting Officer's attention in writing. After an item has received an approval and a substitution is necessary, resubmit the new substitute item for a new approval. Approval of submittals does not relieve the Contractor of errors, omissions, or from complying with the Contract’s requirements.

10. REVIEW TIME: Allow at least 10 WORKING DAYS for review, plus transmittal time back and forth.

11. The Technical Submittal process SHALL NOT BE USED for Requesting Information (RFI) or clarification. Contractor shall submit separate written RFI’s to both the CO and the COR in a form which will allow for a formal written response from the CO and/or COR. Each RFI shall have a separate identifying number and date.

12. The Technical Submittal process SHALL NOT BE USED for requesting changes or price changes to the contract. Refer to FAR Clauses for Contract Change procedures.

B. PROJECT CLOSEOUT SUBMITALS

1. Inspection, Test, and Commissioning Reports: Submit to the designated COR all contract specified inspections/witnessing reports, tests results documentation and/or commissioning test results before requesting final inspection. Refer to individual specification sections for inspection, test, and reports requirements.

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GENERAL INFORMATION AND REQUIREMENTS 01009-5

2. Operation and Maintenance Manual (O&M): Submit two paper copies of Operation and Maintenance Manuals to the on-sight designated CI and one electronic PDF copy to the designated COR for review and approval. The O&M manual shall include products approved technical cut sheets, sequence of operations for the new HV AC system operation and the manufacture’s maintenance and operating instructions for all new equipment provided and install in this project.

3. As-Built Drawings: Provide one hard copy of the project’s As-Built drawing to the refuge’s designated project CI and one electronic PDF copy of the project’s As-Built drawings to the government’s designated COR for review and approval before submitting the final payment request.

4. Warranties: In addition to one year construction warranty, provide manufacturer's written extended warranty, (signed by manufacturer) agreeing to repair or replace products that fail in materials or workmanship for an additional period of 5 years for all new HVAC heat pumps and heat recovery equipment.

5. Refer to Project Acceptance paragraph 3.6 below for additional requirements.

1.6 QUALITY ASSURANCE:

A. Qualifications: The contractor shall be a licensed GENERAL Contractor having successfully completed five projects of similar complexity and scope within the past three years.

B. All work shall be conducted by a Oklahoma state authorized HVAC/Plumbing service technician.

C. Codes and Standards: The work shall comply with codes and standards applicable to each type of work and as listed in the individual specification sections. This contract incorporates materials, applications, and tests by reference, with the same force and effect as if they were given in full text.

D. Conflict: Where a conflict occurs between reference documents, drawings, and project specifications, refer to the FAR’s and the Contracting office for resolution.

E. Product basis: Where specifications or drawings call out a specific product or manufacturer, it is understood that an equal or better product is acceptable, provided it is approved through the technical submittal review process.

PART 2 - PRODUCTS – NOT USED- REFER TO SPECIFIC TECHNICAL SPECIFICATIONS FOR

ALL NEW EQUIPMENT AND MATERIALS

PART 3 - EXECUTION

3.1 PROJECT MEETINGS:

A. Preconstruction Conference: Telephone conference call is anticipated.

B. Progress Meetings: To be held at the project site as required.

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C. Inspections:

1. Contractor shall perform and maintain records of their construction inspection to ensure their own construction quality assurance and contract compliance. Refer to FAR 52.246

2. The government’s on-site construction inspector (CI) and/or COR will conduct routine inspections to monitor the contracts progress. Inspection of items of work by the CI will not relieve the Contractor of the requirement to meet project specifications. The CI shall be informed 24 hours in advance of work requiring his observation. After being informed in advance the CI’s non-attendance shall not prohibit the Contractor from proceeding with work in the CI’s absence.

3. For final inspection, notify the COR in writing at least 14 working days before the completion date so the Government can schedule final inspection. The superintendent shall be present during the final inspection.

4. Notify COR and CI ten working days in advance of anticipated date for equipment start-up and operational tests.

3.2 SEQUENCING AND SCHEDULING WORK

A. Work Schedule:

1. An electronic Project Schedule shall be submitted at the pre-work conference to the designated CO, COR and CI.

2. As a minimum, project should be updated and submitted to the designated CO, COR, and

CI every with every progress payment request.

3. When requested, submit an updates of the schedule within 4 calendar days.

4. The project schedule shall show the work break out for each work discipline along with key project milestones.

B. The Contractor’s normal work schedule shall be 7:30 a.m. to 4:00 p.m., Monday through Friday. No work shall be performed on Saturdays, Sundays, or federal holidays, unless authorized in writing by the Contracting Officer.

3.3 SAFETY:

A. SAFETY PLAN: Contractor shall submit, for approval before any on site work is conducted, a safety and quality assurance plan for the project. Plans shall be site specific for this project. The safety plan shall address all OSHA personnel safety equipment and clothing to be worn on the construction site.

B. SUPERINTENDENT RESPONSIBILITY: Contractor’s on-site superintendent shall ensure all personnel (including all sub contactors) comply with the approved safety plan/manual. In addition, the Superintendent shall ensure compliance with all applicable state and local safety codes and regulations including but not limited to Occupational Safety and Health Administration regulations, 29 CFR, Part 1926.

C. MSDS’s : Contractor shall maintain copies of all the Material Safety Data Sheets for all materials on the construction site for the duration of the contract.

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GENERAL INFORMATION AND REQUIREMENTS 01009-7

D. DISPOSAL OF DEBRIS: Demolition debris shall be removed from the project site and disposed of in a legal disposal site by the Contractor. Contractor shall pay all fees required for disposal.

E. Work areas shall be roped off to alert unauthorized personnel to work in progress.

3.4 DELIVERY, STORAGE, AND HANDLING:

A. Delivery: Protect products incorporated into the work from damage while in transit to the site.

Products must be delivered in original unopened containers with manufacturer’s name, brand designation, and contents legibly indicated. The containers shall bear the referenced specification number, type, and class as applicable.

B. Contractor shall be responsible for providing all equipment and labor required for offloading/unloading all equipment and supplies to be provided under the contact. Contractor shall also inspect and accept all equipment and supplies delivered to the site. The government will not perform any offloading, inspection and accepting for the contractor.

C. Storage: Provide temporary storage facilities for products. Storage shall comply with the manufacturer’s instructions. The storage area shall permit access for inspection and handling.

D. Handling: Loading and unloading of products shall be protected from damage. Damaged products shall be replaced with new products; repairs shall not be acceptable.

3.5 PROGRESS PAYMENTS:

A. Payments shall be made in accordance with procedures outline in FAR 52.232-27.

B. Construction progress payments will be made on a monthly basis based on the work completed per the approved Schedule of Values, as agreed to by the Construction Inspector and the Superintendent or Project Manager.

C. Retainage will not be implemented unless the Contracting Officer determines that construction progress and/or quality are not satisfactory.

3.6 PROJECT ACCEPTANCE:

A. PROJECT CLOSEOUT SUBMITTALS: All the project’s inspection reports, test reports and commissioning reports specified in paragraph 1.5 B “Closeout Submittals” above, shall be submitted and approved before the project is accepted. The project Closeout Submittals shall include the following:

1. Inspection Report:

a. HVAC Water treatment and freeze protection levels.

b. Water piping insulation inspection report.

c. Duct cleaning and inspection report.

d. Duct insulation inspection report.

2. Test Reports:

a. Water Piping Pressure/Leak test.

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b. Heat pump Startup Test Report.

c. Heat Recovery Startup Test report.

d. Exhaust fan Startup Test Reports.

e. Unit Heater Startup Test Report.

f. Electrical Grounding Test Report.

g. Electrical circuit Meggar Test Reports.

h. Electrical Torque Tests for electrical circuit and feeder connections.

3. Commissioning Report:

a. Air Test and Balance Report for each new air handling equipment, ie each heat pump and heat recovery system.

b. Water Test and Balance Report which shall include each circulating pump and each HVAC Heat pump system.

c. Control, Monitoring, and Alarm System testing and verification for each HVAC system controlled, monitored and alarm initiations.

4. Project Operation and Maintenance (O&M) Manual: Refer to paragraph 1.5 B “Closeout

Submittals” above for requirements.

B. FACILITY OPERATORS TRAINING:

1. The contractor shall provide on-site training to the refuge facility operations personnel on the operation, monitoring and required maintenance of all new equipment provided and installed under this contract. Training shall include but not limited to the following:

a. How the various components of the new HVAC systems are supposed to operate together as a unit,

b. Explain the operations of the control, monitoring and alarm system which shall include:

1) Explaining the various monitoring screens,

2) Explain how to make appropriate adjustments to the various HVAC operation parameters such as:

a) Space temperature set-points

b) Space humidity settings

c) System operational times

d) Use of historical date of critical operational parameter.

e) Adding and Adjusting alarm set-points

f) Clearing and Resetting alarms

g) Adding and Deleting user access to the HVAC control system.

c. Explain the routine and preventive maintenance operation that needs to be performed to ensure the system’s operational longevity is achieved. Clearly identify and explain whether the various recommended maintenance tasks should be performed by refuge staff or be performed by professional technicians. This shall include reviewing the various manufacturers’ Operations and Maintenance Manual recommendations for such areas as:

1) Water system maintenance including water treatment levels and water flow checks and adjustments.

2) HVAC Equipment maintenance activities such as:

a) filter changes,

b) motor changes,

c) belt changes,

d) refrigeration charge checks,

e) Pump seal replacement

f) etc

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3) Controls, Monitoring, and Alarm system maintenance such as:

a) Software upgrades

b) Updates

c) Backup

d) Calibration

e) etc

4) Electrical system preventive maintenance activities that need to be performed.

5) Recommendations for preventive maintenance on other interlocking systems such as fire detection system.

d. Answer facility staff questions on HVAC operation and preventive/periodic maintenance activities.

2. Submit a training summary report describing the training session’s subject matter, training session length of time, the trainers name and contract information.

3. Contractor shall allow 8 hours for training facility operations staff.

C. PROJECT WARRANTEES:

1. All project work/construction shall be provided with a one-year warranty in accordance with FAR 52.246-21.

2. With respect to warranties, expressed or implied, from manufacturers or suppliers of materials or equipment furnished under the contract, the Contractor shall:

a. Obtain the most favorable warranties that would be given by the Contractor in normal commercial practices, but in no case less than called for by the specifications.

b. Require warranties to be executed, in writing, for the benefit of the Government.

c. Submit warranties to the COR prior to the final inspection.

D. PROJECT AS-BUILT RECORD DRAWINGS: A complete set of full-sized prints, furnished by the Contracting Officer for this purpose only, shall be kept by the Contractor. As the job progresses, continuously maintain as-built drawings of the work. The changes shall be noted legibly in red pencil or red ink. These drawings shall be submitted to the COR prior to final inspection. Should final inspection reveal changes in the Project not so noted on the As-Built Drawings, the Contractor shall record these changes on the As-Built Drawings within 3 working days. Deliver completed As-Built Drawings to the COR at final inspection and before requesting final payment

E. FINAL PAY REQUEST: Submit the following for final Payment request to the contract’s designated COR

1. Release of Claims

2. Final Pay request approved by the contract’s designated on-site construction inspector

(CI).

END OF STATEMENT OF WORK

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SELECTIVE DEMOLITION 024119 - 1

SECTION 024119 - SELECTIVE DEMOLITION

1.1 SUMMARY

A. Section Includes:

1. Demolition and removal of selected portions of building or structure.

2. Demolition and removal of selected site elements.

3. Salvage of existing items to be reused or recycled.

1.2 DEFINITIONS

A. Remove: Detach items from existing construction and dispose of them off-site unless indicated to be salvaged or reinstalled.

B. Demolish: Detach items from existing construction and dispose of them off-site unless indicated to be salvaged or reinstalled.

C. Existing to Remain: Leave existing items that are not to be removed and that are not otherwise indicated to be salvaged or reinstalled.

1.3 MATERIALS OWNERSHIP

A. Unless otherwise indicated, demolition waste becomes property of Contractor.

1.4 INFORMATIONAL SUBMITTALS

A. Proposed Protection Measures: Submit report, including Drawings, that indicates the measures proposed for protecting individuals and property, for environmental protection, for dust control, and for exhibit protection. Indicate proposed locations and construction of barriers.

B. Schedule of Selective Demolition Activities: Indicate the following:

1. Detailed sequence of selective demolition and removal work, with starting and ending dates for each activity.

2. Interruption of utility services. Indicate how long utility services will be interrupted.

3. Coordination for shutoff, capping, and continuation of utility services.

4. Coordination of Owner's continuing occupancy of portions of existing building and of

Owner's partial occupancy of completed Work.

C. Statement of Refrigerant Recovery: Signed by refrigerant recovery technician responsible for recovering refrigerant, stating that all refrigerant that was present was recovered and that recovery was performed according to EPA regulations. Include name and address of technician and date refrigerant was recovered.

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SELECTIVE DEMOLITION 024119 - 2

D. Warranties: Documentation indicating that existing warranties are still in effect after completion of selective demolition.

1.5 QUALITY ASSURANCE

A. Refrigerant Recovery Technician Qualifications: Certified by an EPA-approved certification program.

1.6 FIELD CONDITIONS

A. Owner will occupy portions of building immediately adjacent to selective demolition area.

Conduct selective demolition so Owner's operations will not be disrupted.

B. Conditions existing at time of inspection for bidding purpose will be maintained by Owner as far as practical.

C. Notify Government of discrepancies between existing conditions and Drawings before proceeding with selective demolition.

D. Hazardous Materials: It is not expected that hazardous materials will be encountered in the

Work.

1. If suspected hazardous materials are encountered, do not disturb; immediately notify Architect and Owner. Hazardous materials will be removed by Owner under a separate contract.

E. Exhibit Areas: Demolition and hauling equipment and other materials shall be of sizes that clear surfaces within historic spaces, areas, rooms, and openings, including temporary protection, by 12 inches or more.

F. Storage or sale of removed items or materials on-site is not permitted.

G. Utility Service: Maintain existing utilities indicated to remain in service and protect them against damage during selective demolition operations.

1. Maintain fire-protection facilities in service during selective demolition operations.

1.7 WARRANTY

A. Existing Warranties: Remove, replace, patch, and repair materials and surfaces cut or damaged during selective demolition, by methods and with materials and using approved contractors so as not to void existing warranties. Notify warrantor before proceeding.

B. Notify warrantor on completion of selective demolition, and obtain documentation verifying that existing system has been inspected and warranty remains in effect. Submit documentation at Project closeout.

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SELECTIVE DEMOLITION 024119 - 3

1.8 COORDINATION

A. Arrange selective demolition schedule so as not to interfere with Owner's operations.

PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. Regulatory Requirements: Comply with governing EPA notification regulations before beginning selective demolition. Comply with hauling and disposal regulations of authorities having jurisdiction.

B. Standards: Comply with ANSI/ASSP A10.6 and NFPA 241.

3.1 EXAMINATION

A. Verify that utilities have been disconnected and capped before starting selective demolition operations.

B. Review Project Record Documents of existing construction or other existing condition and hazardous material information provided by Owner. Owner does not guarantee that existing conditions are same as those indicated in Project Record Documents.

C. Perform an engineering survey of condition of building to determine whether removing any element might result in structural deficiency or unplanned collapse of any portion of structure or adjacent structures during selective building demolition operations.

1. Perform surveys as the Work progresses to detect hazards resulting from selective demolition activities.

3.2 PREPARATION

A. Refrigerant: Before starting demolition, remove refrigerant from mechanical equipment according to 40 CFR 82 and regulations of authorities having jurisdiction.

3.3

UTILITY SERVICES AND MECHANICAL/ELECTRICAL SYSTEMS

A. Existing Services/Systems to Remain: Maintain services/systems indicated to remain and protect them against damage.

B. Existing Services/Systems to Be Removed, Relocated, or Abandoned: Locate, identify, disconnect, and seal or cap off utility services and mechanical/electrical systems serving areas to be selectively demolished.

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1. Arrange to shut off utilities with utility companies.

2. If services/systems are required to be removed, relocated, or abandoned, provide temporary services/systems that bypass area of selective demolition and that maintain continuity of services/systems to other parts of building.

3. Disconnect, demolish, and remove fire-suppression systems, plumbing, and HVAC systems, equipment, and components indicated on Drawings to be removed.

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

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

c. Equipment to Be Removed and Reinstalled: Disconnect and cap services and remove, clean, and store equipment; when appropriate, reinstall, reconnect, and make equipment operational.

d. Equipment to Be Removed and Salvaged: Disconnect and cap services and remove equipment and deliver to Owner.

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

3.4 PROTECTION

A. Temporary Protection: Provide temporary barricades and other protection required to prevent injury to people and damage to adjacent buildings and facilities to remain.

1. Provide protection to ensure safe passage of people around selective demolition area and to and from occupied portions of building.

2. Provide temporary weather protection, during interval between selective demolition of existing construction on exterior surfaces and new construction, to prevent water leakage and damage to structure and interior areas.

3. Protect walls, ceilings, floors, and other existing finish work that are to remain or that are exposed during selective demolition operations.

4. Cover and protect furniture, furnishings, and equipment that have not been removed.

B. Temporary Shoring: Design, provide, and maintain shoring, bracing, and structural supports as required to preserve stability and prevent movement, settlement, or collapse of construction and finishes to remain, and to prevent unexpected or uncontrolled movement or collapse of construction being demolished.

1. Strengthen or add new supports when required during progress of selective demolition.

C. Remove temporary barricades and protections where hazards no longer exist.

3.5 SELECTIVE DEMOLITION, GENERAL

A. General: Demolish and remove existing construction only to the extent required by new construction and as indicated. Use methods required to complete the Work within limitations of governing regulations and as follows:

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SELECTIVE DEMOLITION 024119 - 5

1. Proceed with selective demolition systematically. Complete selective demolition operations above each floor or tier before disturbing supporting members on the next lower level.

2. Neatly cut openings and holes plumb, square, and true to dimensions required. Use cutting methods least likely to damage construction to remain or adjoining construction.

Use hand tools or small power tools designed for sawing or grinding, not hammering and chopping. Temporarily cover openings to remain.

3. Cut or drill from the exposed or finished side into concealed surfaces to avoid marring existing finished surfaces.

4. Do not use cutting torches until work area is cleared of flammable materials. At concealed spaces, such as duct and pipe interiors, verify condition and contents of hidden space before starting flame-cutting operations. Maintain portable fire-suppression devices during flame-cutting operations.

5. Maintain fire watch during and for at least 4 hours after flame-cutting operations.

6. Maintain adequate ventilation when using cutting torches.

7. Remove decayed, vermin-infested, or otherwise dangerous or unsuitable materials and promptly dispose of off-site.

8. Remove structural framing members and lower to ground by method suitable to avoid free fall and to prevent ground impact or dust generation.

9. Locate selective demolition equipment and remove debris and materials so as not to impose excessive loads on supporting walls, floors, or framing.

10. Dispose of demolished items and materials promptly.

B. Site Access and Temporary Controls: Conduct selective demolition and debris-removal operations to ensure minimum interference with roads, streets, walks, walkways, and other adjacent occupied and used facilities.

C. Existing Items to Remain: Protect construction indicated to remain against damage and soiling during selective demolition. When permitted by Government, items may be removed to a suitable, protected storage location during selective demolition and cleaned and reinstalled in their original locations after selective demolition operations are complete.

3.6 DISPOSAL OF DEMOLISHED MATERIALS

A. Remove demolition waste materials from Project site and dispose of them in an EPA-approved construction and demolition waste landfill acceptable to authorities having jurisdiction.

1. Do not allow demolished materials to accumulate on-site.

2. Remove and transport debris in a manner that will prevent spillage on adjacent surfaces and areas.

3. Comply with requirements specified in Section 017419 "Construction Waste

Management and Disposal."

B. Burning: Do not burn demolished materials.

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SELECTIVE DEMOLITION 024119 - 6

3.7 CLEANING

A. Clean adjacent structures and improvements of dust, dirt, and debris caused by selective demolition operations. Return adjacent areas to condition existing before selective demolition operations began.

END OF SECTION 024119

Visitor Center HVAC Replacement Wichita Mountains Wildlife Refuge

Issued for Construction April 2021

EXISTING HVAC AIR DISTRIBUTION SYSTEM CLEANING 230130.52 - 1

SECTION 230130.52 - EXISTING HVAC AIR DISTRIBUTION SYSTEM CLEANING (ADDITIVE

BID ITEM #1)

1.1 RELATED DOCUMENTS

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

1.2 SUMMARY

A. Section includes cleaning existing HVAC air-distribution equipment, ducts, plenums, and system components.

B. Related Requirements:

1. Section 233113.00 "Metal Ducts" for cleaning newly installed metal ducts.

2. Section 230593.00 "Testing, Adjusting, Balancing for HVAC" for system flow documentation before cleaning and balancing and following cleaning and restoration.

3. Section 233300.00 "Air Duct Accessories" for restoration of opened ducts and plenums with access doors.

1.3 DEFINITIONS

A. ASCS: Air systems cleaning specialist.

B. CMR: Certified Microbial Remediator.

C. CMRS: Certified Microbial Remediation Supervisor.

D. IEP: Indoor Environmental Professional.

E. NADCA: National Air Duct Cleaners Association.

1.4 ACTION SUBMITTALS

A. Product Data:

1. Cleaning agents

2. Antimicrobial surface treatments ("sealant" for sustainable design submittal purposes).

3. MSDS Sheets for cleaning agents used in project.

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EXISTING HVAC AIR DISTRIBUTION SYSTEM CLEANING 230130.52 - 2

1.5 INFORMATIONAL SUBMITTALS

A. Qualification Data:

1. For an ASCS.

2. For an IEP.

3. For a CMR and a CMRS.

B. Field Quality-Control Reports:

1. Project's existing conditions.

2. Evaluations and recommendations, including cleanliness verification.

3. Strategies and procedures plan.

1.6

CLOSEOUT SUBMITTALS

A. Post-Project report.

1.7

QUALITY ASSURANCE

A. ASCS Qualifications: A certified member of NADCA.

1. Certification: Employ an ASCS certified by NADCA on a full-time basis.

2. Supervisor Qualifications: Certified as an ASCS by NADCA.

B. IEP Qualifications: CMI who is certified by ACAC and accredited by CESB.

C. UL Compliance: Comply with UL 181 and UL 181A for fibrous-glass ducts.

D. Cleaning Conference: Conduct conference at Project site.

1. Review methods and procedures related to HVAC air-distribution system cleaning, including, but not limited to, review of the cleaning strategies and procedures plan.

2.1 HVAC CLEANING AGENTS

A. Description:

1. Will not corrode or tarnish aluminum, copper, or other metals.

2.2

ANTIMICROBIAL SURFACE TREATMENT

A. Description: Specific product selected shall be as recommended by the IEP based on the specific antimicrobial needs of the specific Project conditions.

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EXISTING HVAC AIR DISTRIBUTION SYSTEM CLEANING 230130.52 - 3

1. Formulated to kill and inhibit growth of microorganisms.

2. EPA-registered for use in HVAC systems and for the specific application in which it will be used.

3. Have no residual action after drying, with zero VOC off-gassing.

4. OSHA compliant.

5. Treatment shall dry clear to allow continued visual observation of the treated surface.

3.1 PREPARATION

A. Inspect HVAC air-distribution equipment, ducts, plenums, and system components to determine appropriate methods, tools, and equipment required for performance of the Work.

B. Perform "Project Evaluation and Recommendation" according to NADCA ACR.

C. Cleaning Plan: Prepare a written plan for air-distribution system cleaning that includes strategies and step-by-step procedures. At a minimum, include the following:

1. Supervisor contact information.

2. Work schedule, including location, times, and impact on occupied areas.

3. Methods and materials planned for each HVAC component type.

4. Required support from other trades.

5. Equipment and material storage requirements.

6. Exhaust equipment setup locations.

D. Use the existing service openings, as required for proper cleaning, at various points of the

HVAC system for physical and mechanical entry and for inspection.

E. Comply with NADCA ACR, "Guidelines for Constructing Service Openings in HVAC Systems" Section.

F. Mark the position of manual volume dampers and air-directional mechanical devices inside the system prior to cleaning.

3.2 CLEANING

A. Comply with NADCA ACR, including items identified as "recommended," "advised," and "suggested."

B. Perform electrical lockout and tagout according to Owner's standards or authorities having jurisdiction.

C. Remove non-adhered substances and deposits from within the HVAC system.

D. Complete cleaning in accordance with Owner-Contractor agreed-upon scope of work.

E. Systems and Components to Be Cleaned: All air-moving and -distribution equipment.

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EXISTING HVAC AIR DISTRIBUTION SYSTEM CLEANING 230130.52 - 4

1. Ductwork:

a. Supply-air ducts, including turning vanes.

b. Return-air ducts.

c. Exhaust-air ducts.

d. Transfer ducts.

F. Collect debris removed during cleaning. Ensure that debris is not dispersed outside the HVAC system during the cleaning process.

G. Particulate Collection:

1. For particulate collection equipment, include adequate filtration to contain debris removed. Locate equipment downwind and away from all air intakes and other points of entry into the building.

2. HEPA filtration with 99.97 percent collection efficiency for particles sized 0.3 micrometer or larger shall be used where the particulate collection equipment is exhausting inside the building, H. Control odors and mist vapors during the cleaning and restoration process.

I. Mark the position of manual volume dampers and air-directional mechanical devices inside the system prior to cleaning. Restore them to their marked position on completion of cleaning.

J. System components shall be cleaned so that all HVAC system components are visibly clean. On completion, all components must be returned to those settings recorded just prior to cleaning operations.

K. Clean all air-distribution devices, registers, grilles, and diffusers.

L. Clean non-adhered substance deposits according to NADCA ACR and the following:

1. Clean airstream surfaces, components, condensate collectors, and drains.

2. Ensure that a suitable operative drainage system is in place prior to beginning wash-down procedures.

M. Air-Distribution Systems:

1. Create service openings in the HVAC system as necessary to accommodate cleaning.

2. Mechanically clean air-distribution systems specified to remove all visible contaminants, so that the systems are capable of passing the HVAC System Cleanliness Tests (see

NADCA ACR).

N. Debris removed from the HVAC system shall be disposed of according to applicable Federal, state, and local requirements.

O. Mechanical Cleaning Methodology:

1. Source-Removal Cleaning Methods: The HVAC system shall be cleaned using source-removal mechanical cleaning methods designed to extract contaminants from within the HVAC system and to safely remove these contaminants from the facility. No cleaning

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EXISTING HVAC AIR DISTRIBUTION SYSTEM CLEANING 230130.52 - 5

method, or combination of methods, shall be used that could potentially damage components of the HVAC system or negatively alter the integrity of the system.

a. Use continuously operating vacuum-collection devices to keep each section being cleaned under negative pressure.

b. Cleaning methods that require mechanical agitation devices to dislodge debris that is adhered to interior surfaces of HVAC system components shall be equipped to safely remove these devices. Cleaning methods shall not damage the integrity of HVAC system components or damage porous surface materials, such as duct and plenum liners.

2. Cleaning Mineral-Fiber Insulation Components:

a. Fibrous-glass thermal or acoustical insulation elements present in equipment or ductwork shall be thoroughly cleaned with HEPA vacuuming equipment while the HVAC system is under constant negative pressure and shall not be permitted to get wet according to NADCA ACR.

b. Cleaning methods used shall not cause damage to fibrous-glass components and will render the system capable of passing the HVAC System Cleanliness Tests (see

NADCA ACR).

c. Fibrous materials that become wet shall be discarded and replaced.

3.3 CLEANLINESS VERIFICATION

A. Verify cleanliness according to NADCA ACR, "Verification of HVAC System Cleanliness" Section.

B. Verify HVAC system cleanliness after mechanical cleaning and before applying any treatment or introducing any treatment-related substance to the HVAC system, including biocidal agents and coatings.

C. Surface-Cleaning Verification: Perform visual inspection for cleanliness. If no contaminants are evident through visual inspection, the HVAC system shall be considered clean. If visible contaminants are evident through visual inspection, those portions of the system where contaminants are visible shall be re-cleaned and subjected to re-inspection for cleanliness.

3.4 RESTORATION

A. Restore and repair HVAC air-distribution equipment, ducts, plenums, and components according to NADCA ACR, "Restoration and Repair of Mechanical Systems" Section.

B. Restore service openings capable of future reopening. Comply with requirements in

Section 233113 "Metal Ducts.”

C. Replace damaged insulation according to Section 230713 "Duct Insulation."

D. Ensure that closures do not hinder or alter airflow.

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EXISTING HVAC AIR DISTRIBUTION SYSTEM CLEANING 230130.52 - 6

E. New closure materials, including insulation, shall match opened materials and shall have removable closure panels fitted with gaskets and fasteners.

F. Restore manual volume dampers and air-directional mechanical devices inside the system to their marked position on completion of cleaning.

END OF SECTION 230130.52

VISITOR CENTER HVAC REPLACEMENT

COMMON MOTOR REQUIREMENTS FOR HVAC EQUIPMENT 230513 - 1

SECTION 230513 - COMMON MOTOR REQUIREMENTS FOR HVAC EQUIPMENT

A. Section includes general requirements for single-phase and polyphase, general-purpose, horizontal, small and medium, squirrel-cage induction motors for use on alternating-current power systems up to 600 V and installed at equipment manufacturer's factory or shipped separately by equipment manufacturer for field installation.

1.3 COORDINATION

A. Coordinate features of motors, installed units, and accessory devices to be compatible with the

1. Motor controllers.

2. Torque, speed, and horsepower requirements of the load.

3. Ratings and characteristics of supply circuit and required control sequence.

4. Ambient and environmental conditions of installation location.

2.1 GENERAL MOTOR REQUIREMENTS

A. Comply with NEMA MG 1 unless otherwise indicated.

2.2 MOTOR CHARACTERISTICS

A. Duty: Continuous duty at ambient temperature of 40 deg C and at altitude of 3300 feet above sea level.

B. Capacity and Torque Characteristics: Sufficient to start, accelerate, and operate connected loads at designated speeds, at installed altitude and environment, with indicated operating sequence, and without exceeding nameplate ratings or considering service factor.

VISITOR CENTER HVAC REPLACEMENT

COMMON MOTOR REQUIREMENTS FOR HVAC EQUIPMENT 230513 - 2

2.3 POLYPHASE MOTORS

A. Description: NEMA MG 1, Design B, medium induction motor.

B. Efficiency: Premium efficient, as defined in NEMA MG 1.

C. Multispeed Motors: Separate winding for each speed.

D. Rotor: Random-wound, squirrel cage.

E. Bearings: Regreasable, shielded, antifriction ball bearings suitable for radial and thrust loading.

F. Temperature Rise: Match insulation rating.

G. Insulation: Class F.

H. Code Letter Designation:

1. Motors Smaller Than 15 HP: Manufacturer's standard starting characteristic.

I. Enclosure Material: Cast iron for motor frame sizes 324T and larger; rolled steel for motor frame sizes smaller than 324T.

2.4 ADDITIONAL REQUIREMENTS…