Attachment A - NH30_1809193_ESOW.pdf

eProjects No: 1809193

Executable Scope of Work

Building NH-30 Replace Chiller at the

Naval Support Activity, Norfolk, Virginia

PREPARED BY:

NAVFAC MID-ATLANTIC

Facilities Engineering and Acquisition Division

Public Works Department

Norfolk, Virginia

SUBMITTED BY:

Design Manager: Richard Corbin

Plumbing / Mechanical Matthew Wright

Electrical / Telecom Joseph Godfrey, P.E.

Date: December 22, 2025

APPROVED BY:

Project Management & Engineering Director: John C. Miller, P.E.

Design Director: James M. Smith, R.A.

For Commander, NAVFAC MID-ATLANTIC:

Date:

NH-30 Replace Chiller and Related Controls

PWD Norfolk, Facilities Engineering and Acquisition Division Form Version 2024.06.27 Page 1 of 8 eProjects Work Order No: 1809193

Maximo SR Number: 23804823

Building: NH-30

Project Title: NH-30 Chiller Replacement & Related Controls

Customer:

Commander, Navy Installation Command (CNIC)

Project POC Melissa Eley Melissa.r.eley.civ@us.navy.mil 757-836-1994

Funding POC Jason Etheridge Jason.a.Etheridge2.civ@us.navy.mil 757-836-4099

Scope By: Electrical Mark Godfrey, P.E. Joseph.m.godfrey7.civ@us.navy.mil 757-341-1861

Mechanical Matthew Wright Matthew.R.Wright23.ctr@us.navy.mil 757-812-0971

Date:

December 22, 2025

1. Points of Contact:

FEAD Contracting Officer:

Natalie Augsburger

Natalie.g.augsburger.civ@us.navy.mil 757-341-0555

Facility Maintenance Specialist (FMS): Melissa Eley Melissa.r.Eley.civ@us.navy.mil 757-836-1994

2. General Description:

Contractor must provide supervision, labor, material, and equipment required to perform all work for the following project: Existing 50 Ton Air Cooled Chiller has reached the end of its useful life and needs replacing. Refer to section 7 “Project Overview and Work Requirements” for additional information.

All work must be performed in accordance with, but not limited to the following:

• Standard industry practices.

• Applicable local, state, federal codes, laws, and regulations.

• The Unified Facilities Criteria.

3. Location:

The work is located at building NH-30, Naval Support Activity (NSA), Virginia, approximately as indicated.

The exact location will be shown by the Contracting Officer. Refer to attachment 8.1 Location map of Naval Support Activity – Building NH-30.

NH-30 Replace Chiller and Related Controls eProjects No.: 1809193

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4. Special Scheduling Requirements / Work Procedures:

4.1 Utility Services will be in accordance with the procedures in FAR 41.202.

4.2 The work must be performed during regular Government working hours. Regular working hours must consist of an 8-1/2 hour period established by the Contracting Officer, Monday through Friday, excluding Government holidays.

4.3 The Contractor will be working around an existing building which is occupied. Do not enter the building without prior approval of the Contracting Officer.

4.4 The existing building and contents must be kept secure at all times. Provide dust covers or protective enclosures to protect existing work that remains.

4.5 Damage caused by construction operations must be repaired, patched and/or replaced to match adjacent areas to the satisfaction of the Contracting Officer at no additional cost to the Government.

4.6 Permission to interrupt any Activity roads, railroads, or utility service must be requested in writing a minimum of 15 calendar days prior to the desired date of interruption.

5. Safety:

5.1 All work must be conducted in a safe manner and must comply with all requirements of the U.S.

Army Corps of Engineers Safety Health Requirements Manual EM-385-1-1.

5.2 Contractor must submit an Accident Prevention Plan (APP), and Activity Hazard Analysis (AHA) for approval by the Contracting Officer. Submit the APP and AHA to the Contracting Officer 15 calendar days prior to the pre-performance conference for acceptance.

6. Submittals:

6.1 The Contractor must submit the following documents required for government approval, prior to the start of any construction activities:

• Manufacturer’s Product Data

• Certificates

• Manufacturer’s Warranties

• Work Schedule

• Equipment List

• Site Plan for Construction Laydown Area

• Submittals required by specifications

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7. Project Overview and Work Requirements:

7.1 Project Overview:

a. Replacement of 50 Ton outdoor air-cooled chiller and all related controls.

7.2 Demolition Work Requirements

Mechanical

1. Shut down existing 50 Ton Outdoor Air-Cooled Chiller.

2. Valve off Chilled water Supply and Return Lines and verify valves are holding.

3. Disconnect electrical power and associated controls.

4. Disconnect Chilled water piping and cap off to prevent debris from entering chilled water system.

5. Evacuate refrigerant from system.

6. Use crane to remove existing chiller.

Electrical

1. Disconnect 250A electrical connection at the existing chiller. Feeder is fed from existing 250A circuit breaker in switchboard DP. (See attached drawings)

2. Demolish existing conduit and wire feeding existing chiller back to existing 250A, 3P, circuit breaker in existing switchboard DP. (See attached drawings)

3. Demolish existing 250A, 3P, circuit breaker in existing switchboard DP. (See attached drawings)

7.3 New Work Requirements

Mechanical

1. Use crane to place new 50 Ton air cooled chiller onto existing concrete pad.

2. Connect chilled water supply and return lines taking into account any modifications for proper pipe fitting.

3. Connect necessary controls per manufacturer’s requirements.

4. Once tied-in mechanically and electrically, open chilled water supply and return valves.

5. Bring chiller online and verify unit is functioning properly and temperature and pressure gauges are functioning accurately.

6. Connect related controls to building automation system.

7. Testing and balancing required for chiller flow rates, pressure and temperature.

Electrical

1. Provide a 300A, 3P, circuit breaker in existing switchboard DP. (See attached drawings)

2. Provide a 400A, 3P, NEMA 4X fused disconnect with 300A fuses at new chiller location. (See attached drawings)

3. Connect fused disconnect to 300A, 3P, circuit breaker in switchboard DP with 4-#350kcmil, 1-

#4 ground, in 3” RGS conduit. (See attached drawings)

4. Connect fused disconnect to new chiller with 4-#350kcmil, 1-#4 ground, in 3” RGS conduit.

(See attached drawings)

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7.4 The Contactor must dispose of all existing demolished / removed material off base and must completely clean up the job site daily at the end of each workday.

8. Attachments:

8.1 Location map of Naval Support Activity (NSA) – Building NH-30.

8.2 Building NH-30 Site Plan

8.3 Photographs

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8.1 Location map Naval Support Activity (NSA) Norfolk-Building NH-30

LOCATION MAP

NOT TO SCALE

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8.2 Building NH-30 Site Plan

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8.3 Project Photographs

Photo # 1 Air Cooled Chiller Existing Conditions

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Photo # 2

Air Cooled Chiller Existing Conditions

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