SOW_PDPG19-0109 A-E 35_ Design to Replace the HVAC System B395 28May25.pdf

STATEMENT OF

WORK

FOR

35% Design to Replace the Existing VRF HVAC System with Chilled Water System

ATCT B395

PROJECT NO.: PDPG 19-0109

452d CIVIL ENGINEER SQUADRON (CES)

452nd MISSION SUPPORT GROUP (MSG)

23 May 2025

Statement of Work 10 December 2024 PDPG 19-0109 35% Design to Replace the Existing VRF HVAC System with Chilled Water System Page ii

TABLE OF CONTENTS

1. INTRODUCTION

2. PROJECT INFORMATION

3. Project Location

4. Scope of Work

5. Governing Codes, Criteria, Regulations and Industry Guidance

6. ADMINISTRATIVE AND MANAGERIAL REQUIREMENTS

7. WORK PLAN

8. CONTRACT COMPLETION/ACCEPTANCE

9. CONTRACT ADMINISTRATION

STATEMENT OF WORK

35% Design to Replace the Existing VRF HVAC System with Chilled Water System

PROJECT NO: PDPG 19-0109

1. INTRODUCTION

This Statement of Work (SOW) defines the scope of work for the A-E (Architect-Engineering) firm to prepare the 35% design level documents to demolish the existing variable refrigerant flow (VRF) system manufactured by LG and replace it with 4-pipe chilled/hot water system. Also define the scope for the construction contractor to complete the design to 100%; dispose of the removed equipment, materials, and refrigerant in accordance with the applicable regulations; provide and install new chilled/hot water system with 4- pipe fan coils. The water chillers will be air-cooled type and electric hot water boilers.

The existing backup systems and the fresh air supply system will remain and continue to operate as intended.

Also, the scope will include modifications to the existing electrical and control systems because of the HVAC system modification, new housekeeping pads, testing, and commissioning the new systems.

The A-E shall furnish the personnel, services, equipment, materials, facilities, and other requirements necessary for, or incidentally to, the performance of work set forth herein. Primary technical services shall be performed by individuals who are currently licensed in California or other state of the United States and having proved to be capable of calculating HVAC system requirements using ASHRAE codes and guides with expertise in the heating, ventilation and air conditioning industry, specifically, but not limited to similar HVAC systems as is existing in Building 395 and typical airfield control towers. All work must meet the requirements of the applicable Federal, State, and UFC requirements.

The A-E shall be capable of calculating the size and configuration of the replacement systems including water chillers, boilers, pumps, water and refrigeration pipes, power supply, circuit breakers, fuses, and short circuit requirements. A-E shall provide the 35% design level including equipment sizing calculations, floor plans, flow diagrams, equipment schedules, single line power supply diagrams, electric panels schedules, design narrative (analysis), and cost estimate for demolition, new construction, and preparing construction documents.

2. PROJECT INFORMATION

Project Number: PDPG19-0109.

3. Project Location

The project is located on March Air Reserve Base (MARB), CA as shown on Figure 1, March Air Reserve Base (MARB) Map

Figure 1. March Air Reserve Base (MARB) Map

4. Scope of Work

A-E shall perform the work as described herein. Additional as-built drawings for the building can be obtained from the COR, as needed to show other details such as architectural, civil, electrical, plumbing and other division drawings. The A-E shall provide the necessary drawings, calculations, design analysis, specifications, and construction cost estimate to cover the following:

4.1. Remove the variable refrigerant flow (VRF) made by LG

Demolish the existing variable refrigerant flow (VRF) system manufactured by LG; dispose the removed equipment, materials, and refrigerant in accordance with the applicable regulations.

4.2. Remove the electrical components for the demolished VRF system

Demolish the electrical power supply components including circuit breakers, wires, conduits, and switches. Dispose the removed equipment and materials in accordance with the applicable regulations.

Save the electrical components serving the existing fan coil units that can be reused for the new fan coil units.

4.3. Remove the housekeeping pads

Demolish the existing housekeeping pads. Dispose the removed equipment and materials in accordance with the applicable regulations.

4.4. New water chillers

Provide and install two (2) air-cooled water chillers 60%, each, of the total load. The two chillers will work in parallel and in a lead/lag basis. The size of the chillers will match the collective fan coil units capacities plus 10%.

4.5. New chilled water pumps

Provide and install variable volume chilled water system consisting of primary/secondary pumps, the primary pumps will circulate constant chilled water flow through the water chillers, and the secondary pumps will circulate variable water flow through the fan coils. The primary pumps will be constant speed while the secondary pumps will be variable speed utilizing variable speed motors and drives.

4.6. New fan coil units

Provide and install 4-pipe fan coil units including the filters, cooling coil, and the heating coil. The fan coil units will be comparable to the existing fan coil units for the cooling capacity, heating capacity, and the unit configuration. The A-E will utilize the existing ductwork, the existing air outlets and inlets, and the existing condensate drainpipe network. A-E shows the necessary adaptation between the new fan coil units and the existing ductwork and drainpipes.

4.7. New chilled water piping system

Install new chilled water piping with insulation and vapor barrier. Install aluminum water jackets on the exterior pipes. All pipes will copper schedule L. Provide and install the expansion tank and the chemicals feed pot with all the necessary valves, pressure relief safety valves, air vents, water pressure gages, and pipe fittings.

4.8. New hot water heating system

Provide and install two (2) electric water boilers, 60% of the total heating load, each, and the associated circulating pumps, piping system, pipe insulation, expansion tank, chemical feed pot, all necessary valves, pressure relief safety valves, air vents, and pipe fittings. Pumps will be primary/secondary configuration, the primary pump will be constant speed and circulate the water through the boiler, and the secondary pump will be variable speed and circulate the water through the fan coil units.

4.9. New HVAC control system

Provide and install a new HVAC control system. The system will be DDC (Direct Digital Controls) type, standalone, and compatible with ASHRAE BACnet requirements. The system will be centrally controlled, monitored, and programmable from a central control panel located in the mechanical room including a desktop computer, monitor, and printer. Room thermostats will be capable of displaying the room temperature and allow the occupants to adjust the room temperature and the fan speed. A-E will note that the new room thermostats at the same locations of the existing room thermostats and reuse the existing conduits. Provide and install new wiring for the control system.

4.10. Exiting fresh air supply system

A-E will note that the existing fresh air supply system will remain with the following provisions. Replace the existing condensing unit with a new comparable condensing unit, make all the necessary repairs for the air handling unit to function as intended, upgrade and integrate existing controls with the new controls for the chilled water system.

4.11. Power supply

Provide and install power to the new equipment including the circuit breakers, switches, wiring, fuses, and conduits. A-E will note that the existing conduits may serve the new fan coil units as reasonably applicable. Provide and install new wiring for the fan coil units. The entire HVAC system will be energized from the normal utility and the backup generator.

5. Governing Codes, Criteria, Regulations and Industry Guidance.

A-E shall comply with the Codes, Criteria, Regulations and Industry Guidance.

5.1. General

A-E shall comply with all applicable federal, state, and local statutes, instructions, manuals, handbooks, regulations, guidance, policy letters, and rules (including all changes and amendments), and Presidential Executive Orders, pertaining to the work. A-E must raise any questions in the form of a request for Information (RFI) to seek clarification of the applicability or conflicts between the applicable requirements. A-E shall comply with MARB Installation Facilities Standards (IFS) and the following technical references:

UFC 1-200-01, General Building Requirements

Air Force Instruction (AFI) 32-1065

UFC 3-540-01, Engine-Driven Generator Systems for Backup Power Applications

UFC 3-190-06, Protective Coatings and Paints

UFC 3-201-01, Civil Engineering

UFC 3-310-04 Seismic Design of Buildings

UFC 3-401-01 Mechanical Engineering

UFC 3-410-01 Heating, Ventilating, and Air Conditioning Systems

UFC 3-410-02 Direct Digital Control for HVAC and Other Building Control Systems

UFC 3-450-01 Noise and Vibration Control

UFC 3-501-01 Electrical Engineering

UFC 3-520-01 Interior Electrical Systems

UFC 3-530-01 Interior and Exterior Lighting Systems and Controls

UFC 4-133-01 Air Traffic Control and Air Operations Facilities

The references are published standards, the titles of which can be found in the Unified Master Reference List (UMRL) on the Whole Building Design Guide at the Unified Facilities Guide Specification (UFGS) Website. (http://www.wbdg.org/FFC/DOD/UMRL/UMRL.pdf)

The publications referenced form a part of this specification to the extent referenced. The advisory provisions of all codes, requirements, and standards are mandatory; substitute words such as "must" or "required" for words such as "shall", "should", "may", or "recommended," wherever they appear. The results of these wording substitutions incorporate these code and standard statements as requirements.

Comply with the required and advisory portions of the current edition of the standard at the time of contract solicitation.

Government standards listed in this SOW take precedence over industry standards. The referenced Codes, Criteria, Regulations and Industry Guidance is not comprehensive and is augmented by other codes and standards referenced and cross-referenced in the SOW.

All work activities must comply with the requirements of MARCH ARB GUIDE SPECIFICTION

ENVIRONENTAL PROTECTION

6. ADMINISTRATIVE AND MANAGERIAL REQUIREMENTS

6.1. SUPERVISION

The A-E shall provide management and planning, pertinent to the performance of the requirements identified in this SOW.

6.1.1. Project Manager

A-E shall assign a Project Manager with responsibility for the overall management of the project. The CO may request proof of the Project Manager's qualifications at any point in the project if the performance of the Project Manager is in question.

http://www.wbdg.org/FFC/DOD/UMRL/UMRL.pdf

6.2. Electronic Mail (E-Mail) Address.

A-E shall establish and maintain electronic mail (e-mail) capability along with the capability to open various electronic attachments such as text files, pdf files, and other similar formats. Within 10 days after the contract award, provide the CO a single (only one) e-mail address for electronic communications from the CO related to this contract including, but not limited to contract documents, invoice information, request for proposals, and other correspondence. The CO may also use email to notify the A-E of base access conditions when emergency conditions warrant, such as hurricanes or terrorist threats. Multiple email addresses are not allowed. It is the A-E's responsibility to make timely distribution of all CO’s initiated e-mail with its own organization including field office(s). Promptly notify the CO, in writing, of any changes to this email address.

6.3. BASE ACCESS

The A-E shall prepare a pass information sheet identifying all employees, including the subcontractor employees, who will be working on MARB. The pass information sheet shall be submitted to the CO at the predesign meeting. Upon completion of the contract or expiration of the passes, the A-E shall ensure all passes issued to employees and subcontractor employees are returned to security. Failure to comply with this requirement may result in the withholding of final payment.

6.4. NOTICE TO PROCEED (NTP)

The A-E will be provided a Notice to Proceed (NTP) to begin contract activities. The A-E shall attend a kickoff meeting at the 452d Operational Contracting Office as requested by the CO. The A-E shall prepare a sign-in sheet and meeting minutes for all meetings attended on MARB. Meeting minutes shall include the names and emails of all individuals in attendance. A copy of the meeting minutes shall be provided to the CO. This project requires the submittal of a Work Plan for the proposed work. This submittal must be approved by the CO before work may begin.

6.5. SUBMITTALS

6.5.1. General Submittal Requirements

All submittals will be submitted in the quantities identified on the contract schedule of materials and will include an AF Form 3000 Material Approval Submittal. Upon approval/disapproval of the submittal, a copy of the signed AF Form 3000 will be provided to the A-E. This form is easily obtained from the Air Force E-Publishing website at: http://www.e-publishing.af.mil/. The CO will not accept any submissions that do not contain a complete AF Form 3000.

All submittals shall be electronic pdf except drawings shall be submitted in AutoCAD dwg (2022 or earlier version) and pdf format. No hard copies are required unless specifically requested or not able to be submitted electronically.

Contract Schedule in Microsoft Project Schedule format will be submitted with the draft Work Plan depicting an overall contract schedule for the main elements of work for the period of performance for approval by the CO. Monthly during construction, the A-E shall submit AF Form 3065, Contract Progress Report, signed by the A-E’s on-site representative. The work elements and percentages for each element will be entered on AF form 3064 as depicted on the Microsoft project Schedule and will be identical to the work elements and percentages on the AF Form 3064

Submittal Requirements

Copies Required

Frequency Hard Copy

Electronic Copy

(PDF)

Progress Schedule (AF Form 3064) 1 NLT 10 calendar days after

NTP

Progress Report (AF Form 3065) 1 Monthly Meeting Minutes 1 Within 3 calendar days of meeting Work Plan 1 21 calendar days after job award Project Schedule 1 21 calendar days after job award Schematics level submittals 42 calendar days after job award 35% level submittals for review 90 calendar days after job award Final 35% submittals 120 calendar days after job award Short Equipment Specs and Data 1 90 calendar days after job award Cost estimate for design and construction 90 calendar days after job award

6.5.2. Government Review Period

The Government shall be permitted a technical review period, of not less than 14 calendar days for all submitted materials, unless stated otherwise in this Statement Of Work or SUBMITTAL REGISTER - BLDG

395. There will be two reviews, schematics submittals and 35% design draft submittals.

6.6. MEETINGS REQUIRING ATTENDANCE

The A-E shall participate in and/or facilitate on-site meetings as required by this Statement of Work. The purpose of these meetings includes, but are not limited to, contract discussions, progress reviews, drawing reviews, project status, and the general exchange of information concerning current and future activities. All official meetings will be held at MARB in the Operational Contracting Office, Building 2313.

The A-E shall prepare a sign-in sheet and meeting minutes for all meetings attended on MARB. Meeting minutes shall include the names and emails of all individuals in attendance. A copy of the meeting minutes shall be provided to the CO within 3 calendar days of the meeting.

6.6.1. Kick-off Meetings

A kick-off meeting shall be held within calendar 10 days of contract award. The meeting will be held at the MARB 452 Operational Contracting Office, Building 2313. The A-E is required to attend the Kick-off Meeting. The A-E shall coordinate a date and time with the CO. The Government may issue the NTP at the Kick-off Meeting.

6.6.2. Work Plan Review Meeting

The A-E shall schedule a Work Plan review meeting after receiving the Government’s review comments following Work Plan submittal. The meeting shall be held at MARB and coordinated with the CO. The Work Plan review meeting shall be held per the schedule identified in section 9.4. The A-E’s response to government comments shall be delivered to the CO prior to the review meeting

7. WORK PLAN

7.1. PREPARATION OF WORK PLAN

Upon receipt of NTP, the A-E shall prepare a Work Plan to describe its procedures and methods to be used on the project, specific efforts to be completed based on its on-site review of the project site, the Statement of Work and specification provided. The A-E shall submit the draft Submittal on time. The draft submittal shall be due per the schedule in section 9.4.

The Work Plan shall include:

• Introduction

• Project Description

• Personnel Duties

• Notifications and Site Access

• Contact Information

• Quality Control Plan

• Project Schedule with Gantt chart, the A-E shall provide a signed Microsoft Office

Project Schedule, in the Work Plan submittal.

• Schematics documents, 35% design draft documents, final 35% design documents, and design and construction cost estimate.

PDPG 19-0109 35% Design to Replace the Existing VRF HVAC System with Chilled Water System

7.2. WORK PLAN PERFORMANCE PERIOD

TASKS

CALENDAR

DAYS (NLT)

NTP/Kick-off Meeting + 0 Draft Submittal + 14 Government Review + 5 Review Meeting + 1 Final Submittal + 7 Government Review + 5 Review Meeting + 1

8. CONTRACT COMPLETION/ACCEPTANCE

The CO will be the only individual authorized to accept completion or amend or modify the terms of this contract.

9. CONTRACT ADMINISTRATION

9.1. BASE CIVIL ENGINEERING

The 452 MSG/CE Project Engineer and COR will provide technical support, project coordination, and guidance as required for the project. The A-E is reminded that neither the Project Engineer or COR are authorized to direct any change to the contract.

9.2. CONTRACT ADMINISTRATION

The CO is responsible for addressing all contractual issues relating to the contract. All changes to the contract shall be processed through the CO. The CO is the only individual with authority to direct a A-E or proceed with contract changes.

The CO shall be responsible for managing and addressing all contractual and administrative issues relating to this Contract. All changes to the contract must be processed through the CO as a modification to the contract. The A-E shall not proceed with the change in the contract until receiving a modification to the contract. The CO has the sole authority to direct the A-E to proceed with any Work Plan task or change in the Contract. The contract administration shall be by:

452 MSG/PK

1261 Graeber St, Building 2313, Ste 118

March ARB, CA, 92518