PO Box 7948, 800 Tiffany BLVD, Suite 200 Rocky Mount, NC 27804 919-781-7210 Fax 919-781-5348

Owner: City of Raleigh, North Carolina Engineering Services Department Construction Management – Parks Division 222 West Hargett St, Suite 400, Raleigh, NC 27601 Contact: Kevin Roberts, kevin.roberts@raleighnc.gov

JOHN CHAVIS MEMORIAL PARK- PHASE 2; AQUATIC CENTER

RALEIGH, NORTH CAROLINA

ADDENDUM NO. 4

October 01, 2026

To: ALL BIDDERS OF RECORD

This addendum forms a part of the Contract Documents and modifies the original Bidding Documents dated August 31, 2026. Acknowledgement of receipt of this Addendum in the space provided on the Bid Form is mandatory. Failure to do so may subject the Bidder to disqualification. This is explicitly for Bid Package 2800 – Security Systems

INFORMATION

Bid Package 2800 – Security Systems will no longer bid on October 8, 2026, as previously communicated and will now bid on October 20, 2026. Per North Carolina General Statutes Chapter 143-129 this is formal notification of extension of bid for BP2800 because of the following factors. Bid Location: Walnut Creek Wetland Center (950 Peterson St, Raleigh, NC 27610), Neuse River Room and Bid Opening: 2 PM

1. City of Raleigh will now request the under CMAR Agreement, that Security devices previously noted as “Not In Contract (NIC)” to now be included in the Bid Package 2800 and CMAR Agreement and Contract.

2. Construction Specifications and Drawings will be revised to indicate items previously noted as “Not In Contract (NIC)” to now be “In Contract” and the drawing lines and notes will also be updated to reflect this change.

3. Bid Package 2800 Scope of work and BP2800 Bid Form will be revised to include the noted information of what to include, along with general requirements (product information, etc.)

PROJECT BID MANUAL

Appendices Add - JCMP Phase 2 - Monitoring Based Commissioning (MBCx) Plan

• Added by Commissioning Agent on 10-1-26

PROJECT DRAWINGS

PROJECT SPECIFICATIONS

City of Raleigh Project Number: 274-FY2027-CM-P05

END OF ADDENDUM NO.4

MONITORING-BASED

COMMISSIONING PLAN

John Chavis Memorial Park

Phase 2 – Aquatics Center

Owner: City of Raleigh, NC

Architect: Evoke Studio

MEP Engineer: HDR

Construction Manager: Barnhill / Holt Brothers

Commissioning Services Provider:

Hanson Professional Services Inc.

Issue Date: September 29, 2026

Hanson Project No: 25G0017

John Chavis Memorial Park 25G0017

TABLE OF CONTENTS

1. MONITORING-BASED COMMISSIONING OVERVIEW

2. ROLES AND RESPONSIBILITIES

2.1 BUILDING OWNER

2.2 ENGINEER OF RECORD

2.3 CONTRACTOR

2.4 CX PROVIDER

2.5 OWNER’S FACILITIES OPERATION & MAINTENANCE STAFF

3. MEASUREMENT REQUIREMENTS

3.1 METERS, METERING SYSTEMS & MEASUREMENT POINTS

3.4 DATA ACCESS

4. OPERATIONAL POINTS TO BE TRENDED AND ANALYZED

4.1 AIR-COOLED CHILLER

4.2 AIR HANDLING UNIT

4.3 POOL DEHUMIDIFICATION UNIT

4.4 PUMPS

4.5 FANS

4.6 VAV TERMINALS

4.7 FAN COIL UNITS

4.8 AC SPLIT SYSTEMS

4.9 GAS BOILERS

4.10 HEATING HOT WATER BTU METER

4.11 CHW BTU METER

4.12 DOMESTIC WATER HEATERS

4.13 ELECTRIC, GAS & WATER METERS

4.13 BUILDING OUTDOOR AIR MONITORING

5. CRITERIA USED TO EVALUATE PERFORMANCE

5.1 POINT VALUES OUTSIDE OF EXPECTED RANGE

5.2 CONFLICTS BETWEEN SYSTEMS

5.2 OUT-OF-SEQUENCE OPERATION

5.3 ELECTRICITY, GAS & WATER USAGE PROFILES

5.4 FAULTS OR FAILURES OF EQUIPMENT

6. CORRECTIVE ACTION PLAN

7. TRAINING TO PREVENT ERRORS

8. PLANNING FOR NEEDED REPAIRS

9. FREQUENCY OF ANALYSIS

10. ENERGY OPTIMIZATION FEATURES

NOTICE: This document, including field data presented herein, was prepared using the guidelines for commissioning from the ASHRAE Standard 202-2024 Commissioning Process for Buildings and Systems, and ASHRAE Guideline 0-2019, The Commissioning Process). As stated in that guideline, “The Commissioning Provider is not responsible for design concept, design criteria, compliance with codes, design or general construction scheduling, cost estimating, or construction management. The Commissioning Provider may assist with problem-solving or resolving nonconformance or issues, but ultimately that (sic) responsibility resides with the Construction Manager and design professionals." The Commissioning Provider's scope has been further limited by the Owner to those systems covered herein.

CONFIDENTIALITY NOTICE: This document contains confidential information belonging to Hanson Professional Services Inc. (Hanson). This information is intended only for the use of Hanson employees and the associated project team and is not to be copied or distributed to others. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution or the taking of any action in reliance on the contents of this information is strictly prohibited. If you have received this document in error, please immediately notify Hanson to arrange for its return. Hanson Professional Services Inc., 2300 Maitland Center Pkwy Suite 310, Maitland, FL 35721.

1. Monitoring-Based Commissioning Overview

Enhanced Commissioning (Cx) gives the Owner further oversight of the project through post-occupancy with the Commissioning Services Provider (CxP) serving as an advocate for the Owner.

LEED Enhanced Commissioning Option 1 Path 2 Monitoring-Based Commissioning (MBCx) provides the Owner, building operators and CxP with a continuing flow of information to identify operational issues, leading to energy and cost savings.

The purpose of this Monitoring-Based Commissioning (MBCx) Plan is to analyze operational data during the first year of occupancy and help identify operational issues, anomalies and faults as they occur, and help Owner’s O&M personnel do the same. The goal is to save time, money and energy consumption over the life of the building. Other benefits could include:

• Increased energy efficiency.

• Compliance with LEED.

• Encourage better project engineering.

• Facilitate analysis and adjustment of building systems operation.

• Providing accurate reporting of systems operation

• Provide feedback on the facility’s systems performance

• Identify any needs for maintenance, repair, or replacement of system components

2. Roles and Responsibilities

2.1 Building Owner

The building owner will review the quarterly MBCx reports, participate in the MBCx meetings and hold the Contractor responsible to address reported operational issues during the first year of building occupancy.

2.2 Engineer of Record

The Engineer of record will be provided with copy of the MBCx report and be invited to the MBCx meetings to provide any necessary clarifications regarding design intent.

2.3 Contractor

The Contractor will assist the Facilities O&M staff with gathering of trend data as necessary. The Contractor will be responsible for addressing operational issues found by the MBCx process as warranty items during the first year of building occupancy.

2.4 Cx Provider

The Cx Services Provider (CxP) will obtain the trend data for each of the first four quarters of occupancy, analyze the data, prepare and submit a report, and conduct a review meeting with the team. The CxP will prepare and maintain a log of MBCx items.

2.5 Owner’s Facilities Operation & Maintenance Staff

The Owner’s O&M Staff will, at the request of the CxP, gather the trend data for each of the first four quarters of occupancy and provide it to the CxP. O&M Staff will be invited to the MBCx review meetings to increase awareness of operational issues and gain insight into the intended operation of building-specific systems.

3. Measurement Requirements

3.1 Meters, Metering Systems & Measurement Points

As outlined in the Basis of Design, the Engineer of Record has specified that the following measurement means are to be employed in accordance with LEED Advanced Energy Metering

Credit.

3.1.1 Electrical Metering

Power meter capable of monitoring consumption (kWh) and demand (kW) and transmitting to the

Building Automation System (BAS)

• Total Building Electrical Load

• Indoor Lighting Load

• Outdoor Lighting Load

• Receptacle (Plug) Load

• HVAC Equipment Load

• Pool Heater (Process) Load

3.1.2 BTU Metering – Heating & Cooling Systems

Measuring flow volume (GPM) and supply-return water temperature difference (“Delta-T”) and calculating demand (Tons Cooling, BTU/Hr Heating) and consumption (Ton-Hrs Cooling, BTU

Heating)

• Chilled Water System

• Heating Hot Water System

3.1.3 Domestic Water Meter Monitoring

BAS monitoring of domestic water usage and consumption

• Whole Building

• Water Submetering for:

o Domestic Hot Water o Chilled Water System Make-Up o Heating Hot Water System Make-Up o Pool Make-Up o Irrigation System

3.1.4 Gas Meter Monitoring

BAS monitoring of natural gas usage and consumption

• Whole Building

• Gas Submetering for :

o Boilers o Pool Heaters o Domestic Water Heater

3.2 Data Access

The design specifications call for an engineered BAS network that, even under heavily loaded (high network data traffic) conditions, can accommodate trend report request for every point in the building at 15-minute intervals. Prior to each quarterly meeting, the CxP will request trend reports for selected operational points taken at 15-minute intervals. This data will be analyzed and the findings summarized in the MBCx report.

4. Operational Points to be Trended and Analyzed

4.1 Air-Cooled Chiller

• Operating Hours

• CHW Flow

• Entering & Leaving Water

Temperatures

• Running Amperage % of Full Load

Amps

4.2 Air Handling Unit

• Supply Fan Run-Hours

• Supply Fan Speed Setpoint and

Feedback

• Supply Fan Static Pressure

• Supply Fan Static Pressure Setpoint

• Return Fan Run-Hours

• Return Fan Speed Setpoint and

Feedback

• Return Fan Speed Setpoint

• Cooling Coil Control Valve Command and Feedback

• Cooling Coil Leaving Air Temperature

• Cooling Coil Leaving Air Temperature

Setpoint

• Heating Coil Control Valve Command and Feedback

• Heating Coil Leaving Air Temperature

• Heating Coil Leaving Air Temperature

Setpoint

• OA Damper Position Command and

Feedback

• RA Damper Position Command and

Feedback

4.3 Pool Dehumidification Unit

• Supply Fan Run-Hours

• Supply Fan Speed

• Supply Fan Static Pressure

• Supply Fan Static Pressure Setpoint

• Exhaust Fan Run-Hours

• Exhaust Fan Speed

• Exhaust Fan Speed Setpoint

• Cooling Coil Control Valve Position

Command and Feedback

• Cooling Coil Leaving Air Temperature

• Cooling Coil Leaving Air Temperature

Setpoint

• Reheat Coil Control Valve Position

Command and Feedback

• Reheat Coil Leaving Air Temperature

• Reheat Coil Leaving Air Temperature

Setpoint

• Energy Recovery OA Damper Position

Command and Feedback

• Energy Recovery EA Damper Position

Command and Feedback

• OA Entering and Leaving Air

Temperature

• OA Entering and Leaving Air

Temperature Setpoint

4.4 Pumps

• Operating Hours

• Speed Setpoint and Feedback

• Amps

• Systems Differential Pressure

• System Differential Pressure

Setpoint

4.5 Fans

• Operating Hours

• Speed

• Amps

• Isolation Damper Position Command and Feedback

4.6 VAV Terminals

• Airflow CFM

• Control Damper Position Command and Feedback

• Heating Coil Control Valve Position

Command and Feedback

• Heating Coil Leaving Air Temperature

• Heating Coil Leaving Air Temperature

Setpoint

• Space Temperature Setpoint

• Space Temperature

• Space Relative Humidity

• Mode of Operation

• Associated Air Handling Unit Supply

Air Temperature

• Space CO2 (Selected Spaces)

4.7 Fan Coil Units

• Supply Fan Run-Hours

• Supply Fan Command

• Supply Fan Status

• Cooling Coil Control Valve Position

Command and Feedback

• Heating Coil Control Valve Position

Command and Feedback

• FCU Discharge Air Temperature

• FCU Discharge Air Temperature

Setpoint

• Space Temperature

• Space Temperature Setpoint

• Space Relative Humidity

4.8 AC Split Systems

• Operating Hours

• Space Temperature in Area Served

• Space Temperature in Area Served

Setpoint

4.9 Gas Boilers

• Operating Hours

• Firing Rate % of Maximum

• Heating Water Leaving Temperature

• Heating Water Leaving Temperature

Setpoint

4.10 Heating Hot Water BTU

Meter

• Demand BTU/Hr

• Consumption BTU

• Heating Water GPM

• Heating Water Supply Temperature

• Heating Water Return Temperature

4.11 CHW BTU Meter

• Demand Tons

• Consumption Ton-Hours

• Chilled Water GPM

• Chilled Water Supply Temperature

• Chilled Water Return Temperature

4.12 Domestic Water Heaters

• Operating Hours

4.13 Electric, Gas & Water

Meters

• Demand (kW, Therms per hour, Gallons per hour)

• Consumption (kWh, Therms, Gallons)

4.14 Building Outdoor Air

Monitoring

• Temperature

• Relative Humidity

• Carbon Dioxide

5. Criteria Used to Evaluate Performance

Acceptable limits are to be set for operational values based on system design parameters and observed variance of each point from its expected value under normal building operation. The

MBCx process will evaluate trend data against values expected in normal system operation to detect faults and anomalies. Potential types of anomalies are listed below.

5.1 Point Values Outside of Expected Range

An example of this would be space temperature more than 2 degrees F above cooling setpoint or more than 2 degrees F below heating setpoint. Another example would be the setpoint above or below expected value, such as an AHU cooling coil discharge setpoint of 65 degrees F when it should be 55 degrees F.

5.2 Conflicts Between Systems

The MBCx analysis will look for systems not working in coordination with each other as the design intended. An example of this would be space cooling and heating temperature setpoints too close together, causing heating and cooling systems to “fight” each other, wasting energy. This is an operational anomaly that might not otherwise be detected because the space still feels comfortable.

5.3 Out-of-Sequence Operation

An AHU programmed with incorrect run-time schedule will not start when it needs to for an occupied space. If the exhaust fans in spaces served by the AHU continue to run when the AHU is off and not bringing in outdoor air, the space could become negative-pressure and draw in unconditioned hot humid air. The MBCx analysis checks for equipment control interlocks so related pieces of AC equipment work in concert with each other.

5.4 Electricity, Gas & Water Usage Profiles

Unexpected spikes power, water or gas usage will be noted as they may be an indication of a system running when it should not, a faucet left open, lights left on when they should not be, a door chocked open in summer, or other deviations from intended building operation.

5.5 Faults or Failures of Equipment

The BAS will be programmed to generate equipment failure alarms in the BAS; for example, when a piece of equipment is commanded on and its status in the BAS is showing “off.” MBCx will look for mismatches in command vs. status and check that the corresponding alarms are being generated in the BAS and acted upon. The MBCx analysis will also check for mismatches in control valve and control damper position command vs. feedback. The latter may not register as alarm conditions in the BAS but could degrade system performance and efficiency.

6. Corrective Action Plan

There must be a plan in place to remedy issues, anomalies, or faults discovered in the MBCx process. The CxP will prepare, maintain, and distribute a list of these issues for tracking to resolution. The CxP will request addition of items to contractor’s close-out punchlist for tracking as warranty items during the first year of post occupancy.

7. Training to Prevent Errors

The Owner’s O&M personnel will be invited to the MBCx review meetings and be copied on correspondence (reports and deficiency lists) to increase their awareness of systems’ intended operation. This will also help O&M personnel to carry MBCx practices forward as an integral part of

Facilities Maintenance.

8. Planning for Needed Repairs

The MBCx list of issues will be shared with the contractor with direction from the Owner that they be addressed under warranty.

9. Frequency of Analysis

The LEED Enhanced Monitoring-Based Commissioning, as described in LEED v4 Option 1 Path 2 will begin once operational stability has been achieved and trends have been set up and running in the BAS to gather data. The CxP will be reviewing trend data reports on a quarterly basis during the first year of post occupancy, analyzing the data for variances or anomalies not aligning with the design intent. The CxP will prepare a report of findings and conduct a meeting to review the findings with stakeholders.

10. Energy Optimization Features

A variety of Optimization features or control strategies have been incorporated into the design and will be carried out through construction. These are intended to create a high-performance, energy efficient building in alignment with the Owner’s pursuit of LEED (Leader in Energy Efficient Design) certification. These strategies will be continuously managed and monitored through the Building

Automation System (BAS). The MBCx analysis will check that these sequences are functioning as intended.

Verifiable Optimization Features

• Unoccupied Setback – HVAC systems go into standby mode or operate with relaxed space temperature setpoints during scheduled unoccupied hours or when occupancy sensors indicate the space is vacant.

• Morning Warm-Up / Cool-Down - AHU runs in 100% return air mode for a minimum time as calculated by algorithm to bring space temperature to setpoint before scheduled occupied time.

• AHU Supply Fan Static Pressure Setpoint Control – Supply fan VFD speed modulates to maintain supply duct static pressure setpoint.

• AHU Supply Fan Static Pressure Reset - Supply fan SP setpoint resets based on feedback from widest open downstream VAV control damper.

• AHU Airside Economizer - AHU uses increased outdoor air intake flow for free cooling whenever outdoor air enthalpy (total heat content) is less than return air.

• General Exhaust Fans Thermostatically Controlled – EFs serving Mechanical and Electrical

Rooms only run when space temperature is above a prescribed setpoint.

• Heating Hot Water Supply Temperature Reset - HHW supply temperature setpoint automatically resets downward in part load condition based on position of widest open control valve.

Other Optimization Features

• High efficiency fans

• High efficiency motors

• Variable frequency drives

• Energy-efficient light fixtures/lamps

• Energy-efficient lighting controls (occupancy and vacancy sensors, photocells)

• Low-E exterior glazing

• Low-flow water closets

• Water faucet sensors/aerators