PR15983761_Statement of Work _ AHU-5 and Zone five VAV Smart Controllers Upgrade.pdf

STATEMENT OF WORK

For

AHU-5 & Zone five VAV Smart Controllers Upgrade

For

U.S. Embassy Addis Ababa, Ethiopia

Table of Contents

1. Project Introduction

1.1 Project Overview and Objectives

1.2 Site Location and Access Requirements

1.3 Points of Contact

2. Technical Scope of Work

2.1 Existing System Removal (Legacy LON)

2.2 Honeywell Optimizer Controller Installation

2.3 Sensor and Field Device Replacement (CO₂, Humidity, DAT)

2.4 Communication Bus and Network Architecture

3. Hardware and Material Specifications

3.1 Controller Requirements (VAV & Unitary)

3.2 Sensor Specifications

3.3 Required Spare Parts Inventory

3.4 Approved Equals and Substitutions

4. Programming and System Integration

4.1 Control Logic and Sequence of Operations (SOO)

4.2 BAS Frontend Graphical User Interface (GUI) Updates

4.3 Alarm Configuration and Trend Logging

4.4 Third-Party Integration Requirements

5. Project Execution and Schedule

5.1 Installation Timeline and Milestones

5.2 Coordination with Building Operations

6. Commissioning and Quality Assurance

6.1 Point-to-Point Verification

6.2 Functional Performance Testing (FPT)

6.3 Owner Training and Demonstration

7. Deliverables and Documentation

7.1As-Built Drawings and Wiring Diagrams

7.2 O&M Manuals and Software Backups

8. Shipping, Warranty, and Support

8.1 Shipping and Material Handling

8.2 Warranty Terms (1-Year Material and Labor)

9. Proposal Submission Requirements

9.1 Itemized Cost Breakdown

9.2 Contractor Qualifications and Licensing

9.3 training

Technical point of contact

Hearn, Christopher, Facility Manager

Email HearnCL@state.gov

Mobile number: +251 0944108469

Bereket Zerihun, Building Automation technician (COR)

Email: ZerihunBB@state.gov

Mobile number: +251 0944102912 mailto:HearnCL@state.gov

1. Project Introduction

1.1 Project Overview and Objectives

US Embassy in Addis Ababa is seeking a qualified Building Automation System (BAS) contractor to perform a comprehensive hardware and software upgrade for the Zone 5

HVAC control system. The project objective is to migrate the existing legacy LON-based communication architecture to a modern Honeywell Optimizer BACnet/IP platform to improve system reliability, monitoring capability, energy efficiency, and indoor air quality tracking.

1.2 Site Location and Access Requirements

All work will be performed within the Zone 5 HVAC service area, including associated

AHUs, VAV terminal units, and control panels. Contractor access must be coordinated with building operations to avoid disruption to occupants.

2. Scope of Work

2.1 Existing System Removal (Legacy LON)

The contractor shall safely remove all existing LON-based VAV and AHU controllers and associated legacy sensors within Zone 5. Removed components shall not be disposed of; instead, they shall be retained and repurposed as spare parts for use in other zones until full migration to the new system version is complete.

2.2 Honeywell Optimizer Controller Installation

Install new Honeywell Optimizer VAV and Unitary controllers, including all required

I/O expansion modules, to fully replace the existing system.

2.3 Sensor and Field Device Replacement

Replace all room sensors and discharge air sensors with new devices capable of measuring:

• Temperature

• Relative Humidity

• CO₂

• Discharge Air Temperature (DAT)

2.4 Communication Bus and Network Architecture

Migrate the existing communication trunks to a BACnet/IP architecture using

Honeywell Optimizer controllers. T1L adapters shall be used to support IP-over-twisted-pair where existing wiring is reused.

3. Hardware and Material Specifications

3.1 Controller Requirements

• Twentynine VAV Controllers: Honeywell Optimizer VAV controllers

• Two AHU unitary Controllers: Honeywell Optimizer Unitary controllers with sufficient I/O to meet or exceed current AHU point requirements.

3.2 Sensor Specifications

All room sensors shall be high-accuracy wall modules capable of sensing:

• Temperature

• Relative Humidity

• CO₂

3.3 Required Spare Parts Inventory

Contractor shall provide the following critical spares:

• (3) Room Sensors (Temp/Hum/CO₂)

• (1) Honeywell Optimizer Unitary Controller

• (1) I/O Expansion Module

• (1) T1L Adapter

4. Programming and System Integration

4.1 Control Logic and Sequence of Operations

Develop and load optimized control programs that replicate or improve upon the existing Sequence of Operations (SOO).

4.2 BAS Frontend GUI Updates

Update the BAS graphics to include:

• Revised Zone 5 floor plans

• New humidity and CO₂ trend logs

• Dynamic AHU and VAV status animations

4.3 Alarm Configuration and Trend Logging

Configure all alarms, limits, and trend intervals consistent with current BAS standards.

4.4 Third-Party Integration

Ensure full integration with existing BAS servers, workstations, and supervisory devices.

5. Project Execution and Schedule

5.1 Installation Timeline

The contractor shall provide a detailed project schedule including:

• Equipment lead time

• Installation duration

• Commissioning timeline

5.2 Coordination with Building Operations

All outages, testing, and cutovers must be approved in advance by the Facility

Manager.

6. Commissioning and Quality Assurance

6.1 Point-to-Point Verification

Perform and document point-to-point testing for every physical input and output.

6.2 Functional Performance Testing (FPT)

Conduct full functional testing of all AHUs and VAVs under live operating conditions.

6.3 Owner Training and Demonstration

Provide onsite training and system demonstration to BAS technician.

7. Deliverables and Documentation

7.1 As-Built Drawings

Provide final digital as-built drawings and wiring diagrams.

7.2 O&M Manuals and Software Backups

Provide electronic O&M manuals, controller programs, and system backups.

8. Shipping, Warranty, and Support

8.1 Shipping

Standard shipping for all materials shall be included in the proposal.

8.2 Warranty

Provide a minimum one (1) year warranty for all labor and materials from the date of ownership.

9. Proposal Submission Requirements

9.1 Itemized Cost Breakdown

Provide separate line items for

• Materials

• Labor

9.2 Contractor Qualifications

Submit contractor license information and relevant certifications.

9.3 Training

The contractor shall provide training for Owner personnel on the operation and maintenance of the upgraded VAV system, including all installed Honeywell VAV controllers. Training shall include a minimum of 8 hours of operator-level instruction and 8 hours of technical/maintenance instruction. Training shall cover system overview, controller operation, graphics/navigation (if applicable), alarm management, troubleshooting, and basic maintenance procedures. Training materials and documentation shall be provided to attendees.

---------------------------------- END -----------------------------------