Amendment - N00253-23-Q-0116-0001.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

This amendment is being issued to incorporate revisions to the scope of w ork through PPI questions and Government Responses. This amendment is also being issued to correct the number of days in block 11 a contractor has to begin performance of the w ork after reciept of the Notice To Proceed from 15 to 10 and the number of days to complete the w ork after reciept of the Notice To proceed from 190 to 180.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 10

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY 30-Oct-2023

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street , County, State and Zip Code) X N0025323Q0116

X 9B. DATED (SEE ITEM 11)

17-Oct-2023

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, X is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN

REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

30-Oct-2023

CODE

NAVAL UNDERSEA WARFARE CENTER

ATTN: THOMAS TREPANIER

THOMAS.L.TREPANIER@NAVY.MIL

610 DOWELL STREET, BLDG 206

KEYPORT WA 98345

N00253 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

N0025323Q0116

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION 00 00 00 - PROCUREMENT AND CONTRACTING REQUIREMENTS

The following have been added by full text:

REVISED SCOPE OF WORK

I. Statement of Work:

NAVSEA NUWC Division, Keyport has a requirement to install two ductless split unit systems located at bldg. 478. The project will require the contractor to provide and install two (2) new ductless split unit systems, destratification fans, HEPA filtration, install electrical circuits, plumbing, and core drilling as required.

The Contractor shall provide labor, material, and equipment, as required, to accomplish the following work in accordance with the statements herein:

Install two (2) new 4 ton ductless split units systems, install new air diffusers. The new ductless systems will supply conditioned air to the lab at the north end of building 478.

All work must be coordinated through the Engineering Technician (ET) Jeremy Paz. A preconstruction meeting will take place two weeks prior to the start of construction, the PM, Customer, Contractor and all required subs will be in attendance at a minimum.

II. Attachments and References:

1. Attachments:

A. Attachment – Material/Equipment In-Place List Rev. 1

2. References:

A. Naval Base Kitsap (NBK) Instruction 11300.1 Utilities and Facilities Outages B. EM-385-1-1 Safety and Heath Requirements Manual C. NAVFAC P307 Weight Handling Program Management Manual D. NAVSEA Safety Requirements for Contractors and Subcontractors, April 2021, REV O.

E. NAVSEA Guide to Environmental Compliance Requirements for Contractors and

Subcontractors, October 2019 F. Naval base Kitsap (NBK) Instruction 11210.1A Road Closure/Disruption Coordination G. Unified Facilities Guide Specifications (UFGS) 23 81 00 Decentralized Unitary HVAC

Equipment H. Unified Facilities Guide Specifications (UFGS) 23 23 00 Refrigerant Piping

III. Submittals:

1. Electronic copies of the below listed submittals shall be submitted to the ET three (3) weeks prior to any field work being started, and shall be approved by the respective government authority prior to commencing work:

A. Material submittals B. Project Schedule C. Safety Plan D. Activity Hazard Analysis (AHA) E. Accident Prevention Plan (APP) F. Safety Data Sheet (SDS) G. Hot Work permit H. Excavation Permit I. Environmental Protection Plan J. Waste Information Specification (WIS or WGR) K. Quality Control Plan L. Contractor Hazardous Material Inventory Sheet (CHMI)

2. The Contractor shall provide their submittal register to the ET within three (3) weeks after contract award.

3. Proposed equipment specifications shall be submitted to the ET for review and written approval prior to commitment to purchase.

4. Schedules: Post award, the Prime Contractor shall submit an electronic project schedule to the ET three (3) weeks prior to schedule start dates. Project schedules shall include a three (3) week projection of work.

5. Required outages shall adhere to Ref (1) and routed through the ET for information on scheduling.

The ET is not responsible for outage coordination, obtaining signatures, or vetting outage requests, including Hot Work permits or Fire Alarm outages. Contractor pricing shall include all Contractor support and associated costs in their proposal.

6. All submittals requiring NBK Bangor Environmental signature shall be routed through the ET for review and acceptance. The ET shall be copied on all emails sent to Environmental. No work shall begin until all required Environmental forms have been submitted and approved.

7. Approved/signed/accepted outages, excavation permits, Hot Work permits, environmental submittals, Prime Contractor Submittal Registers, and all other accepted/approved submittals not mentioned herein shall be sent electronically to the ET for project filing.

8. All contractors working this project are subject to labor interviews and shall provide the information requested per “Labor Standards Interview” form 1445 (Rev. 12-96). The ET will conduct these interviews randomly during the performance of the work.

IV. Products:

1. All materials and products provided by the Contractor in the performance of this contract shall be new, first quality, and manufactured and assembled in the United States of America and shall meet or exceed the manufacturer’s specifications.

2. The materials and/or products listed here are required for the completion and operation of this project, but may not be all inclusive.

A. Ductless Split Unit

The outdoor condenser units shall be mounted on the concrete pad on the north end of bldg. 478 including a service disconnect switch and electrical power, hardware mounting configuration, and all required piping. Each zone shall be independently controlled utilizing thermostats.

The indoor unit shall be factory assembled, wired and run tested. Contained within the unit shall be all factory wiring, internal piping, control circuit board and fan motor. The unit shall have a self‐diagnostic function, 3‐minute time delay mechanism an auto restart function, an emergency operation function and a test run switch. Indoor unit and refrigerant pipes shall be charged with dry air before shipment from the factory. The units shall not have any Bluetooth or Wi-Fi functions.

Unit Cabinet: The casing shall have a white finish. Multi directional drain and refrigerant piping offering four (4) directions for refrigerant piping and two (2) directions for draining shall be standard. There shall be a separate back plate which secures the unit firmly to the wall.

Fan: The indoor unit fan shall be an assembly with a line‐flow fan direct driven by a single motor. The fan shall be statically and dynamically balanced and run on a motor with permanently lubricated bearings. A manual adjustable guide vane shall be provided with the ability to change the airflow from side to side (left to right). A motorized air sweep flow louver shall provide an automatic change in airflow by directing the air up and down to provide for uniform air distribution. The indoor unit fan shall consist of three (3) speeds, High, Medium and Low.

Filter: Return air shall be filtered by means of easily removed catechin and enzyme filters.

Coil: The evaporator coil shall be of nonferrous construction with pre‐coated aluminum strake fins on copper tubing. All tube joints shall be brazed with PhosCopper or silver alloy. The coil shall be pressure tested at the factory. A condensate pan and drain shall be provided under the coil.

emergency operation and controlling the outdoor unit. The control voltage between the indoor unit and the outdoor unit shall be 208 volts or 230 volts AC. The system shall be capable of automatic restart when power is restored after power interruption.

The system shall have auto-change over between heating and cooling. Control system shall control the continued operation of the air sweep louvers, as well as provide on/off and system/mode function switching.

Outdoor Unit General: The outdoor unit must be designed specifically for use with the indoor units. The unit shall be able to provide cooling operation at ‐10°C (14°F) and heating operation at ‐15°C (5°F). The outdoor unit shall be completely factory assembled, internally piped and wired. Each unit must be run tested at the factory.

Unit Cabinet: The casing shall be zinc coated steel with acrylic or polyester coating for corrosion protection.

Fan: The unit shall be furnished with a direct drive propeller type fan. The fan motor shall have inherent protection, be permanently lubricated bearings. The fan motor shall be mounted for quiet operation. The fan shall be provided with a raised guard to prevent contact with moving parts. The outdoor unit shall have horizontal discharge airflow.

Coil: The condenser coil shall be of nonferrous construction with pre‐coated aluminum strake fins on copper tubing. The coil shall be protected with an integral metal guard. Refrigerant flow from the condenser shall be controlled by means of a linear expansion valve (LEV) metering orifice. The linear expansion valve shall be controlled by a microprocessor controlled step motor.

Compressor: The compressor shall be mounted to avoid the transmission of vibration.

Electrical: The electrical power of the unit shall be 208 volts or 230 volts, 1 phase, 60 hertz. The unit shall be capable of satisfactory operation within voltage limits of 198 volts to 253 volts. Pulse Amplitude Modulation shall be incorporated into electrical circuit. The outdoor unit shall be controlled by the microprocessor located in the indoor unit. The control voltage between the indoor unit and the outdoor unit shall be 208 volts or 230 volts AC.

Each zone shall be independently controlled utilizing hard wired thermostats.

Provide unit with an Energy Star label.

B. Line Set Covers

Weather resistant UV stabilized ¼ turn no-rust cam screws

C. Destratification Fans

120v, single phase, shaded pole, axial motor. Motor is thermally protected.

Operating temperature: -4˚ F (-20˚ C) to 158˚ F (70˚ C). No lubrication required.

Bearings are sealed.

Steel leash and anchor point.

UL Listed Multi-Vane stator and venture nozzle Wall mounted speed control with high/low temperature and humidity sensors with automated and manual operation.

D. HEPA Filtration movable, Plug in, 120v, single phase 500 CFM min air flow volume/60 dB Max Noise Level UL Listed

V. Quality Control:

1. The Contractor shall be a licensed contractor in the state of Washington. All components and services are to be installed per manufacturer’s specifications by trained technicians with a minimum of five (5) years’ experience, who specialize in the type of work indicated herein.

2. The Contractor shall perform all work according to accepted standards, safety procedures, and applicable laws, regulations, codes, and standards to include the Unified Facilities Guide Specifications (UFGS), Unified Facilities Criteria (UFC), International Building Code (IBC), International Mechanical Code (IMC), International Plumbing Code (IPC), National Electrical Code (NEC), National Electrical Safety Council (NESC), and National Fire Protection Association

(NFPA).

3. The Contractor shall be responsible for all quality control, inspections, and tests required in the completion of this project. The Contractor shall obtain all approvals except those required for field installations, field applications, and post-field tests, prior to delivery of materials and equipment to the project site unless otherwise specified. The Contractor shall arrange for tests and inspections where and when required as defined in the approved Quality Control Plan.

4. Contractor shall verify all dimensions of all equipment to ensure that all access clearances can be met.

5. The contractor is responsible for providing a complete and useable system including providing manufactures manuals, specifications, any field tests, wiring diagrams and as- built prints (red line drawings) as necessary.

VI. Execution: (general)

1. All approved project packages shall be kept on the jobsite and all employees shall be aware of its contents. Current, up-to-date Site Specific Activity Hazard Analysis (AHA) forms shall be available for review, if applicable. The Contractor shall inform all employees how to contact Base Emergency Services as approved in the contract submittal approvals.

2. Scheduling: The Contractor shall schedule work to cause the least amount of interference with station operations. The government will attempt to provide the Contractor 24 hours’ notice prior to work interruptions due to unscheduled/emergent operational requirements.

3. Protection of Government Property: The Contractor shall use every means at their disposal to prevent damage to government owned property during the execution of work. If government property is damaged, the Contractor shall contact the ET immediately and stop work until the issue is resolved.

4. Delivery, handling, storage, and protection of products to, and at the project site: Inspect for damages, store in a clean dry place, and protect from construction traffic. Handle carefully to avoid damage to components, enclosures, and finish.

5. Close Out: Upon completion of work, the site shall be left free of any and all debris, dust, and chips generated by work throughout the construction area.

6. Access to building 478 is limited to cleared personnel and vehicles. Escorts are required for access to bldg. 478. The Government will provide escorts

7. Furnish the ET with a list identifying personnel and vehicles requiring access.

8. Disposal of any material resulting from demolition shall be per applicable Environmental regulations, including all documentation (Waste Designation Tables, WIS forms, Waste Generation Reports (WGR), etc.) and documented in accordance with Ref (E)

9. Contractor shall locate all utilities prior to starting any excavation work.

10. Contractors performing a Weight Handling Evolution shall adhere to Ref (C) and (D).

11. Contractors utilizing lifting and handling equipment shall adhere to Ref (C) and (D).

12. The ET shall be contacted to coordinate access for job walks, site visits, and scheduling of work.

13. Completion Time Frame: The project is to be completed within 180 days after award.

VII. Bldg. 478 General

1. Safety and Security Brief

A. Contractors will be escorted at all times while working in bldg. 478. NUWC Keyport will provide all escorts based on the contractors approved schedule.

2. Smoking A. Smoking is only permitted in designated smoking areas.

3. Delays A. Contractor operations are subject to reasonable delays, suspensions, and/or restrictions because of emergencies, alerts, drills, equipment movements and other such activities.

4. Flame Producing Devices

A. Matches, lighters, and other spark producing devices are not allowed without a Hot Work permit.

5. Portable Electronic Device(s) (PED) A. PED is defined as a portable electronic device having the capability to store, record, and/or transmit text, images/video, or audio data. Examples of PED include, but are not limited to pagers, laptops, cellular telephones, radios, compact disc and cassette players/recorders, portable digital assistants, audio devices, watches with input capability, reminder recorders, and mobile devices.

B. PEDs are not allowed inside of NUWC Keyport Buildings. PED use will be clarified and discussed at the site walk and pre-construction meeting

C. The Government PM/ET or Building POC, Sean Briley, will provide location of phone for emergency use.

D. For work inside the NUWC Keyport Annex, refer to the Keyport Annex Safety and Physical Access Security Brief.

6. Photography A. Photography by the Contractor is prohibited. Construction progress photos, and all other necessary photo documentation, will be provided by authorized Government personnel only.

7. Schedule

A. Before starting any work, the ET is to be provided with the project schedule for review and approval. Government has 5 working days to review and return schedule.

8. Coordination A. The ET shall be contacted to coordinate access to the buildings for job walks, site visits, and scheduling of the work.

9. Vehicle Access

A. All vehicles will be subject to inspection and search prior to entering and within NBK - Keyport. Avoid transporting sealed containers into NBK - Keyport. If such containers must be introduced, prior coordination with the ET is required.

10. Parking A. Parking stalls at NUWC Keyport are assigned to NUWC Keyport employees. If the contractor requires a lay down area, a Road Closure/Lane-Closure/Disruption request permit will need to be submitted through the NBK. Refer to Reference F for instructions.

11. Security A. Compliance with the security directions of Security Force Personnel is mandatory.

VIII. Deliverables:

1. The Contractor is responsible for providing a complete and useable system.

2. The Contractor shall prepare and submit two (2) hard copies (in 3-ring binders) and two (2)

CD/DVDs of the Operations and Maintenance (O&M) Manuals to the ET. Each binder shall have the project contract number, Prime Contractor letterhead, project title, and building number on the spine and face of the binder. Each binder shall include Attachment (1) above, all product data, manufacturer’s manuals, warranty, specifications, field test results, wiring diagrams, and as-built prints (red line drawings), as necessary.

3. Before final payment will be approved, the Contractor shall provide all necessary training required on any and all new systems.

4. This project will not be accepted as complete until all project documentation and punch list items have been submitted to, and approved by the ET in their entirety and the Customer provides their concurrence electronically to the ET that the project is complete.

IX. Work Description:

1. Coordinate with ET prior to commencement of work.

2. Carefully investigate the plumbing, fire protection, electrical, structural and finish conditions that would affect the work to be performed and arrange such work accordingly, furnishing required offsets, fittings, and accessories to meet such conditions.

3. Perform work in accordance with the manufacturer's published diagrams, recommendations, and equipment warranty requirements.

4. Remove two electric resistance heaters located in rooms 106 & 107. Remove all controls, conduit & wiring back to the panel. Power is supplied from panel P1 circuits 31 & 33. The DDC system shall be reprogramed to remove these from the system.

5. Install 3 destratification fans on the ceiling of room 107. Placement shall be based on manufacturer recommendations. The speed control shall be located to the left of the roll up door between rooms 106 & 107

6. Electrical power for the destratification fans will be taken from electrical panel BJ-51, circuits 31 & 33.

7.

8. Provide a 120v plug in HEPA filtration system in room 107. Use existing receptacles to supply power to the unit. The customer will determine the receptacle to use prior to installation.

9. There is an existing strobe system located above the existing concrete pad mounted to the wall of bldg. 478. Remove the existing strobe system and all associated wire, conduit & controls back to panel P1. Remove the existing plywood the strobe system is mounted on. Leave the existing 20A 120v receptacle located adjacent to the strobe system.

10. Extend the existing concrete pad on the north side of bldg. 478 to accommodate the two new condenser units. The new concrete shall match the height of the existing pad. It shall contain #4 rebar on 12” centers dowelled into the existing concrete. The concrete shall have a broom finish.

11. Provide and install two new ductless split systems.

Room 106

Provide and install a 4-ton ductless split system with 2 indoor wall mounted or ceiling mounted AHU.

Provide and install destratification fans Room 107

Provide and install a 4-ton ductless split system with 2 indoor wall mounted or ceiling mounted AHU.

12. Electrical power for the ductless split unit will be taken from electrical panel BJ-51, circuits 30, 32, 34 & 36.

13. Condensation from the air-handling units must drain by gravity to the exterior of the building where possible. If units cannot be drained by gravity due to building obstacles, a concealed condensate pump is acceptable. Inform NUWC ET of obstacles before purchasing or installing a condensate pump.

14. All exposed line sets must be protected with a line set cover. Openings must be sealed to prevent pest and water intrusion.

15. Pipe, fittings, hangars and valves: All piping shall be properly supported, installed straight and uniform. All access panels and service valves shall be non-obstructed and easily accessible for maintenance purposes.

16. All penetrations; and openings that can be susceptible to water intrusion from the exterior elements to the interior facility/equipment, shall be sealed to prevent water intrusion. Insulate and/or seal all penetrations accordingly.

17. Where pipes pass through walls, furnish and install tested and listed fire stopping systems, combination of materials, or devices to form an effective barrier against the spread of flame, smoke and gases, and maintain the integrity of fire resistance rated walls. Through-penetrations include the annular space around pipes.

18. For temporary penetrations 3” or less in diameter a core can be left in place or other material temporarily inserted and sealed with caulk to visibly show any evidence of tampering. Larger penetrations need to be addressed ahead of time with the ET for method of temporary securing.

19. All surrounding walls or structural surfaces affected by removal or installation of all equipment must be restored to the match the surrounding finish.

20. All equipment, components, and hardware used outside of bldg. 478 must have a marine coating package and/or approved for use in a marine environment.

21. Installation of new units includes outside mounting brackets, condenser, weatherproof electrical disconnects, insulation, refrigerant, copper tubing, fan coil units mounted in the office spaces and condensate drains. Installation of condenser units and fan coil units should be free of obstacles to ensure access for routine maintenance or repair.

22. After becoming familiar with all details of the work, perform Verification of Dimensions in the field, and advise the Contracting Officer of any discrepancy before performing any work.

23. Temporarily or permanently, secure all penetrations and openings at the end of each workday.

24. Upon completion of the work, the Contractor shall inform the ET, and demonstrate operational tests.

X. Title to Materials:

1. All excess and/or discarded materials shall become property of the Contractor and shall be removed from government property, unless specifically noted. Title to the materials resulting from demolition is vested in the Contractor upon authorization of the Contracting Officer to begin demolition.

2. Recycling is preferred and recommended. A WIS is required for disposal and recycling is required for metal.

XI. Material/Equipment In-Place List:

1. The Contractor shall provide a list of significant equipment and materials removed, replaced, or installed under this contract with the required information below, including the warranty expiration date.

A. Types of equipment and materials:

I. Materials: Line set covers, conduit, and all material with a manufacturer’s warranty.

II. Equipment: Roof Top Unit, Ductless Split Units, and thermostat with an O&M manual or manufacturer’s warranty.

2. Required format and information: The Contractor shall provide material and equipment data in the attached format (Attachment (1) – Material/Equipment In-Place List). All of the requested data shall be provided prior to final inspection or final acceptance.

XII. Cleanup:

1. Debris and Rubbish: Remove and transport debris and rubbish that will prevent spillage on pavements, streets, or adjacent areas. Clean up spillage from pavements, streets, and adjacent areas on an ongoing basis.

2. Contractor shall not dispose of debris/rubble on NBK property or in NBK dumpsters.

3. Upon completion, the Contractor shall remove all containers, surplus material, equipment, and debris and leave the site in a clean and orderly condition acceptable to the ET. The project will not be received and/or accepted until all project debris is removed from the site.

XIII. Safety and Environmental:

1. Safety is everyone’s responsibility. All contractor personnel on site are responsible for their own actions and any person on the project site has the authority to stop work if an unsafe condition exists.

2. The Contractor shall perform all work according to accepted Industry Standards, Safety and Environmental Procedures, and regulations, including Ref (B) and the latest revision of OSHA regulations.

3. The Contractor is responsible for inspecting their worksite for any hazards at all times, no exceptions. If an unsafe condition exists, work to correct or mitigate the hazard and contact the ET to assist in determining how to proceed, if needed.

4. Ensure all workers are wearing the proper PPE for the assigned task.

5. Environmental – The Contractor shall obtain approval of a site plan detailing methods of handling encountered waste and refuse, including spill response procedures, per Ref (E) prior to the start of any site work.

PPI QUESTIONS AND GOVERNMENT RESPONSES:

1. What is the minimum size CFM required for the destratification fans?

620 CFM

2. The (2) existing heaters are currently monitored by the building DDC system. Is it in this contract to remove the heaters from the DDC system or will this be completed by others?

Yes, the contractor will remove. Trane will need to reprogram. The cost to reprogram shall be included in the contractor’s bid

3. SOW, IV, Products, 2. C., Destratification Fans; Wall mounted speed control with high/low temperature and humidity sensors. Please explain the sequence of operation for when these fans are to turn on.

The fans shall turn on when the temperature rises above 75 degrees of humidity above 60% at the fans location. The speed control shall allow for manual operation as well

4. SOW, IV, Products, 2. C., Destratification Fans; Wall mounted speed control with high/low temperature and humidity sensors. Where are the temperature and humidity sensors to be located?

The temperature and humidity sensors shall be located at the same height as the fans. The speed control shall be located to the left of the roll up door between rooms 106 & 107

5. The unit heaters slated for demo in the RFP appear to have building management controls for operation. Is it the responsibility of the contractor to disconnect, remove back to the source, and reprogram the front end in the removal process of these two unit heaters?

Yes, the contractor will remove. Trane will need to reprogram. The cost to reprogram shall be included in the contractor’s bid

6. If the unit heater controls is a responsibility of the contractor, who is the controls vendor that will need to rewrite the programming to remove them from the system?

Trane

7. Three destratification fans (DF) are mentioned in the product and work description section of the RFP. Is it a requirement of this RFP to have high/low/humidity controls installed for each DF?

Yes

8. 4 Tons of heat/cooling is required by the RFP per system with one outdoor unit and one indoor wall mounted unit.

Per the manufacture/supplier, two indoor wall mounted units will be required to achieve the 4 ton heat/cool requirement. Since two indoor units will be required to meet this capacity is it acceptable to install the two wall mounted units next to each other on the same wall?

Yes, please see previous PPI

9. Please confirm escorts will be readily available.

The building occupants will provide escorts

10. Please confirm two 4.5” x 36” bollards filled with concrete painted safety yellow anchored down to the new concrete pad will be efficient.

Yes, this is sufficient

11. Please confirm we are to remove plywood on exterior of building and seal all penetrations.

Yes, the plywood shall be removed and any penetrations sealed

12. Please confirm if the government would like the metal siding replaced with new where plywood is removed.

The siding should not need to be replaced

13. Please confirm if any painting will be required for this project.

No painting is required

14. It appears 4 Ton ductless split system indoor wall mount HVAC units are not available. Does the Government want to utilize 4 Ton ductless split system ceiling mounted units instead of wall mounted units?

Yes, either 2 wall mounted or ceiling mounted units in each location is acceptable.

SECTION 00 10 00 - SOLICITATION

The contractor period of performance begin date has decreased by 5 days from 15 days to 10 days.

The contractor period of performance end date has decreased by 10 days from 190 days to 180 days.

The following have been deleted:

SCOPE OF WORK

SECTION 00 70 00 - CONDITIONS OF THE CONTRACT

The following have been modified:

52.211-10 COMMENCEMENT, PROSECUTION, AND COMPLETION OF WORK (APR 1984)

The Contractor shall be required to (a) commence work under this contract within TEN (10) calendar days after the date the Contractor receives the notice to proceed, (b) prosecute the work diligently, and (c) complete the entire work ready for use not later than 180 days after award. The time stated for completion shall include final cleanup of the premises.

(End of clause)

(End of Summary of Changes)