Attachment 2 - SOW_2026.07.31_FINAL.pdf

Statement of Work

BUILDING 1055 CHILLER REPLACEMENT 2026

PROJECT LOCATION

New Mexico Air National Guard

2251 Air Guard Drive S.E.

Kirtland AFB, NM 87117

WORK REQUEST #

202601396

PROJECT #

MHMV262055

Statement of Work

BUILDING 1055 CHILLER REPLACEMENT 2026

1. Scope of Work: The work covered by this specification consists of furnishing all labor, equipment, material, and performing all work to:

Building 1055 removes and replaces existing Chiller to include new Piping, Valves, Electrical, and a complete flush and fill of the Hydronic system.

New controls throughout building tied back into the existing Reliable Building Management System (BMS). The project will involve the turnkey replacement of the existing chiller unit with a new, high-efficiency model.

To ensure optimal performance and energy management, new controls will be installed and commissioned for integrated control of the HVAC system. New controls will be tied into the existing Reliable system. The project will conclude with a complete flush, chemical cleaning, and refilling of the existing closed-loop hydronic system to guarantee system cleanliness and performance. The above is outlined in paragraph 7 PRINCIPAL FEATURES of work.

The CONTRACTOR is encouraged to propose their most cost-efficient solution to best meet the requirements of the Statement of Work.

2. All construction shall be in strict accordance with the Statement of Work and subject to the terms and conditions of the awarded contract.

CONTRACTORS will field verify all dimensions and existing utilities as to not interfere with any existing conditions. Government estimates 270 calendar days for completion of this project.

3. Location: The work is to be accomplished on the New Mexico Air National

Guard complex located on Kirtland AFB.

4. Work Week: The CONTRACTOR shall do all coordination and work during the regular work week being observed by the 150th Civil Engineer Flight, which is 6:30 am to 4:00 pm, Monday through Friday. Any deviation from this schedule will require 24-hour advance notice and approval of the Contracting Officer.

5. MILITARY INSTALLATION REQUIREMENTS:

A. The CONTRACTOR is responsible for the collection and disposal of all debris, rubble, residue and waste material generated in the performance of work under this contract. All such materials shall be disposed of at an off-base landfill by the CONTRACTOR or location specified by USAF Engineering personnel. The CONTRACTOR is not permitted to deposit any such materials in base trash collection containers or at any base location without prior approval of the Contracting Officer.

B. Hazardous Materials: Materials classified as hazardous by US environmental rules, regulations, or laws, shall be handled and processed for disposal in accordance with those rules, regulations, or laws. The CONTRACTOR is responsible for all such materials that are residue from CONTRACTOR furnished supplies and materials which were brought to the job site by the CONTRACTOR, and for any such materials identified herein.

C. The CONTRACTOR shall coordinate the work of subcontractors and shall ensure the coordination of the work between the various trades. In many instances the contract drawings indicate only the general location and arrangement of equipment, fixtures, piping, conduit, or outlets and may not in all cases show, identify or detail all materials or components that are necessary, usual and customary for proper installation, connection or attachment. The CONTRACTOR shall study, examine, and evaluate the existing plans on file at the 150th CEF office to establish the work, coordination, or materials required and necessary to provide a product complete in the usual and customary manner, and shall provide for all such requirements as though expressly detailed herein or on the drawings.

6. WORKPLACE SAFETY: The CONTRACTOR is responsible for the safety of their workers and the safety of all personnel with the 150th New Mexico Air National Guard. Care should be taken with all vehicles both when backing (using a spotter to watch for obstructions and personnel) and in the performance of all work. Care shall be taken both during work hours cordoning the work site and securing the work site at the end of each workday. The CONTRACTOR shall provide, in writing, with a comprehensive safety plan for the Contracting Officer upon the commencement of work. The Contracting Officer reserves the right to halt progress of work if unsafe workplace practices are found and until they are addressed to his satisfaction.

7. PRINCIPAL FEATURES: The work covered by this contract includes, but is not limited to the following:

BUILDING 1055 CHILLER REPLACEMENT, CONTROLS

REPLACEMENT & TEST AND BALANCE

A. DEMOLITION

This Demolition Scope of Work outlines the comprehensive procedures, safety protocols, and environmental requirements for the removal of the existing central chiller unit, its immediate associated piping, and the facility-wide legacy Building Management System (BMS). The primary objective is to safely de-energize, dismantle, and extract obsolete mechanical and control equipment to prepare the facility for the installation of a new high-efficiency chiller and a modern, BACnet-native control system. All demolition activities must be carefully phased and coordinated with COR to minimize operational disruptions.

Phase 1: System Isolation, Lockout/Tagout, and Refrigerant Recovery Prior to any physical demolition, the contractor shall strictly enforce Lockout/Tagout (LOTO) procedures for all electrical feeds supplying the chiller plant and the main BMS control panels. For the mechanical demolition, the contractor must legally and safely recover, weigh, and document all existing refrigerant from the chiller barrel in strict accordance with EPA Section 608 regulations and fill out base environmental paperwork. Following refrigerant evacuation, the contractor will isolate the chiller from the chilled water and condenser water loops by closing the main isolation valves, subsequently draining the localized piping sections to prepare for mechanical disconnection.

Phase 2: Chiller Plant Mechanical Demolition and Rigging Once isolated and drained, the contractor will mechanically disconnect the chiller from the chilled water and condenser water headers. Existing piping will be cut back to the designated tie-in points and safely capped or flanged to prevent debris ingress. The contractor is responsible for the complete dismantling of the chiller unit, which may require breaking the equipment down into smaller sections depending on the building's path of egress. The contractor shall provide all necessary rigging equipment, hoists, skates, and structural protection materials to safely extract the heavy chiller components from the mechanical yard and transport them off-site without causing damage to facility, flooring, grounds, landscaping, or existing structural supports.

Phase 3: Facility-Wide BMS Controls Demolition Concurrently or in phased coordination, the contractor will execute the systematic demolition of the legacy BMS. This involves the complete disconnection and removal of all obsolete global controllers, supervisory panels, main brains and field-level equipment controllers serving the Air Handling Units (AHUs), Variable Air Volume (VAV) boxes, boilers, chillers and exhaust fans. The contractor shall remove all outdated field devices, including temperature sensors, actuators, thermostats, and any abandoned pneumatic tubing. Unless specifically designated for reuse in the new design, all legacy communication wiring and low-voltage control cabling must be pulled back to the source and removed from cable trays and conduits to prevent future network interference and clear pathways for the new system.

Phase 4: Waste Management, Recycling, and Site Handover The contractor is responsible for the legal and environmentally responsible disposal of all demolished materials. Electronic waste (e-waste) such as BMS circuit boards, controllers, and wiring must be recycled through certified facilities. Scrap metals, including the dismantled chiller chassis, copper tubing, and cut steel piping, shall be removed from the site daily to maintain a clean workspace. The contractor must provide the facility owner with all required environmental documentation, including the EPA refrigerant recovery certificate and e-waste disposal manifests. The demolition phase will be considered complete when the mechanical room/yard and all field control enclosures are swept clean, free of trip hazards, and fully prepped for the subsequent installation contractors.

B. INSTALLATION

1. The contractor shall furnish and install one (1) new high-efficiency Carrier chiller, model to be selected based on the existing facility capacity to meet or exceed the building's specified cooling load and energy performance requirements. This work includes the safe and complete decommissioning of the existing chiller, including the proper evacuation and disposal of all refrigerants in accordance with EPA and Kirtland AFB regulations. The contractor will then remove and dispose of the existing unit off-site. The new Carrier chiller will be professionally rigged into place, set on new vibration isolation pads, and securely anchored. All necessary chilled water and condenser water piping connections shall be made from the new unit to the existing system infrastructure, including the installation of new isolation valves, strainers, and flex connectors as required. All new piping and components will be insulated to match existing standards. The chiller installation will be completed with a full factory-authorized startup, testing, and commissioning to ensure all operational parameters meet the manufacturer's specifications.

Existing pad dimensions are to be field verified to ensure replacement unit will properly fit on existing pad. Unit dimensions provided by equipment manufacturers.

2. Remove associated piping as needed to accommodate the new chiller installation.

3. Where more than one piping system material is specified, provide compatible system components and joints. Use non-conducting dielectric connections whenever jointing.

4. Provide and install new jacketed pipe insulation per manufacturer’s instructions.

5. Provide and install new electrical devices for a fully functional system per manufacturer’s specifications. Electrical devices will include but not be limited to wiring chillers, controls wiring, flow switches, power and new disconnects. Contractor will provide and install new Surge Protectors on all new equipment to ensure the safety of the newly installed equipment.

6. Label piping per ANSI/ASME 13.1 pipe identification.

7. Connections shall be made to the existing Reliable BAS with schedules and optimization complete (see below for controls replacement).

8. After chiller installation is completed, the manufacturer shall provide the services of a field representative for starting the unit and training the operator/maintenance staff at no additional costs. A factory-approved and authorized start-up report shall be submitted to the customer/user at the time of start-up.

9. Provide and install proper support for piping and equipment.

Ensure all supports meet current code, industry standards and manufacturers’ recommendations.

10. All condensate and drain piping will be copper pipe and run to an approved location as per manufacturer’s instructions.

11. Provide flushing of complete Hydronic System with non-hazardous solution in accordance with the manufacturer’s guidelines. Flushing will consist of the following but not limited to chiller, fan coils, boiler, and the entire hydronic closed loop system. Contractor will flush the closed loop system according to the equipment manufacturer.

A. Preparation and system isolation.

Before flushing begins, technicians must carefully isolate and bypass all sensitive equipment, such as chiller barrels, heat exchangers, and control valves, to protect them from high-velocity debris. During this phase, temporary connections for flushing and draining will be installed. Additionally, a Reduced Pressure Zone (RPZ) backflow preventer and a water meter must be installed on the makeup water line to comply with the International Plumbing Code (IPC) and accurately track water usage.

B. System Flush and Chemical Cleaning The cleaning process starts with an initial high-velocity water flush to drain existing fluids and purge loose sediment and sludge.

Next, the system will be filled with a pH-neutral, multi-metal safe cleaning agent (avoiding aggressive acids) that will circulate to dissolve organic deposits and scale. A final flush with clean water is then required until the discharged water runs completely clear and meets baseline water quality parameters.

C. Refilling and Water Treatment.

Once clean, the system will be filled with manufacturer-approved water, strictly avoiding unapproved softened water. Concurrently, a comprehensive chemical treatment package containing corrosion inhibitors, scale preventatives, and a non-oxidizing biocide will be introduced. This treated water must be circulated throughout the entire system—including all previously bypassed equipment—to ensure complete and even distribution.

D. Code Compliance and Environmental Safety All work must strictly comply with the ASME Boiler and Pressure Vessel Code (BPVC), the International Mechanical Code (IMC), and guidelines from ASHRAE (Standard 189.1 and Guideline 12) and the AWT. Crucially, all drained fluids and chemical solutions must be disposed of in accordance with the EPA Clean Water Act (CWA) and local POTW / Base regulations, strictly prohibiting any discharge into storm drains. Chemical neutralization may be required prior to authorized disposal.

E. Flush and Fill Completion Criteria The flush and fill will be marked complete when all bypasses are removed, the system is fully operational, and a final water analysis report confirms optimal pH and inhibitor levels. Additionally, documentation of the total makeup water volume must be provided, ensuring future annual water additions remain below the ASHRAE-recommended 10% of total system volume to prevent ongoing corrosion (see below for additional flush and fill of system).

12. Accomplish a full Test and Balance (TAB) of the entire hydronic closed loop system and provide report to COR. (TAB) shall be performed by an independent agency on the water and air side of the HVAC system. Contractor to follow all the test and balance instructions stated below “Test and Balance Air and Hydronic”.

13. Provide Polypropylene Glycol water treatment for complete Hydronic system. Polypropylene glycol shall be a minimum of 30% concentration in the complete hydronic system.

14. The Chiller shall be suitable for use with polypropylene glycol, up to 50% concentration.

15. After Chiller installation is completed, the manufacturer shall provide the services of a field representative for starting the unit and training the operator at no additional costs. A factory-approved and authorized start-up report shall be submitted to the customer/user at the time of start-up.

C. UNIT ACCESSORIES

1. Condenser coil shall have louvers (Full Louvers)

2. Unit capacity control to be enabled through an electronic expansion valve.

3. Ground Fault Protection: Factory installed circuit breakers to protect equipment from damage from line-to-ground fault currents less than those required for conductor protection.

4. Phase loss with under/over voltage protection and with LED indication of the fault type to guard against compressor motor burnout.

5. Factory-mounted thermal dispersion type flow switch.

6. Field-mounted, paddle type, chilled water flow switch field wired to the control panel.

7. Evaporator inlet strainer, 40-mesh with extension pipe and Victaulic couplings (factory mounted or field installed).

8. 115V GFI convenience outlet.

9. Remote operator interface panel (field-wired).

10. BAS interface module to interface with the BACNET protocol, factory mounted.

D. CONTRACTOR QUALIFICATIONS: Contractor shall be approved, authorized or licensed by the manufacturer to install its product.

E. TEST AND BALANCE AIR AND HYDRONIC:

This Scope of Work details the requirements for the comprehensive Testing, Adjusting, and Balancing (TAB) of the facility’s air and hydronic HVAC systems. The objective is to ensure all mechanical equipment, ductwork, and piping systems operate in strict accordance with the facilities design intent, optimizing energy efficiency and occupant comfort. All TAB procedures, instrumentation, and reporting shall comply with the latest procedural standards established by the Associated Air Balance Council (AABC) or the National Environmental Balancing Bureau (NEBB).

Phase 1: Pre-Balancing Inspection and System Readiness Prior to commencing physical balancing, the TAB contractor shall conduct a thorough review of all mechanical drawings, equipment schedules, and control sequences. A field inspection must be performed to verify system readiness. This includes confirming that all equipment is properly installed and energized, fan and pump rotations are correct, all clean filters and strainers are in place, and the piping systems have been properly flushed, filled, and vented of air. The contractor will also verify that all manual volume dampers and hydronic balancing valves are fully open and that the Building Management System (BMS) controls are fully functional to allow for manual override during testing. Any conditions precluding proper balancing must be documented and reported to the project manager immediately.

Phase 2: Air System Testing and Balancing The air balancing phase involves the systematic testing and adjusting of all air handling units (AHUs), exhaust fans, Variable Air Volume (VAV) terminal units, and ductwork distribution systems. The contractor shall perform pitot tube traverses on main supply, return, and exhaust ducts to establish total system airflow (CFM). Fan speeds and sheave adjustments will be made to achieve design total airflow while minimizing static pressure. Technicians will systematically balance branch ducts and adjust individual supply diffusers, return grilles, and exhaust registers to meet the specified design airflows within an allowable tolerance of ±10%. All fan motor amperages, voltages, operating speeds (RPM), and system static pressures will be measured and recorded.

Phase 3: Hydronic System Testing and Balancing The hydronic balancing phase encompasses the testing and adjusting of the chilled water, hot water, and condenser water loops. The contractor will measure and set the total water flow (GPM) at primary and secondary pumps by taking differential pressure readings and referencing manufacturer pump curves. Flow rates will be systematically balanced at all major equipment, including chillers, boilers, cooling towers, and heat exchangers. Technicians will adjust circuit setters and manual balancing valves at each individual terminal coil (e.g., AHU coils, fan coil units, reheat coils) to achieve design flow rates within a ±10% tolerance. Inlet and outlet pressures, as well as entering and leaving water temperatures, will be recorded for all coils and major equipment.

Phase 4: Controls Verification and Final Reporting Throughout the balancing process, the TAB contractor must coordinate with the controls contractor to verify that the physical field measurements match the readings displayed on the Building Management System (BMS) graphical interface. Upon completion of all adjustments, the contractor will compile a comprehensive, certified TAB report. This final deliverable will include equipment nameplate data, a side-by-side comparison of design versus actual measured values for all air and water endpoints, sheave and belt sizing data, and a complete deficiency log detailing any equipment or system parameters that could not be brought into compliance with the design specifications or in need of replacement.

F. CONTROLS REPLACEMENT

Controls replacement encompasses the complete, turnkey replacement of the existing legacy ASI Controls Building Management System (BMS) with a new, fully open BACnet-native Reliable Controls system. This comprehensive upgrade covers the entire facility and all associated HVAC and mechanical equipment. The primary objective is to modernize building automation, improve energy efficiency, enhance system visibility through advanced graphical interfaces, and ensure long-term operational reliability while minimizing downtime during the transition phase.

Phase 1: Site Audit and System Engineering Prior to any demolition, the contractor shall perform a comprehensive site audit of the existing ASI control system. This includes verifying all current sequences of operation, identifying all connected mechanical equipment (e.g., chillers, boilers, AHUs, VAV boxes, Fan Coils, exhaust fans), and mapping the existing network architecture. The contractor will evaluate all existing field devices (sensors, actuators, and valves) to determine if they can be reused or if they require replacement. Following the audit, the contractor will submit complete engineering submittals, including network riser diagrams, panel layouts, wiring schematics, and proposed sequences of operation for approval prior to installation.

Phase 2: Phased Demolition and System Removal To maintain building comfort and operational continuity, the removal of the legacy ASI system will be conducted in a phased, systematic approach. The contractor will disconnect and safely remove all obsolete ASI global controllers, field controllers, and proprietary communication wiring. Any legacy field devices or pneumatic components identified for replacement will also be removed. All demolished electronic materials, including legacy ASI circuit boards and controllers, must be properly disposed of or recycled in accordance with local environmental regulations and facility waste management policies.

Phase 3: Installation and Network Infrastructure The contractor will provide and install new Reliable Controls hardware, including MACH-Pro global controllers (e.g., MACH-ProWeb, MACH- ProSys) for primary mechanical equipment and appropriate terminal controllers (e.g., MACH-ProZone, MACH-ProAir) for zone-level equipment. The installation includes mounting new control enclosures, reusing existing conduits where applicable, and pulling new BACnet MS/TP or BACnet/IP communication wiring to establish a robust, high-speed network. All new wiring, terminations, and panel installations must strictly adhere to the National Electrical Code (NEC) and facility standards, with all cables neatly dressed, labeled, and color-coded.

Phase 4: Programming, Graphics, and Integration Following hardware installation, the contractor will utilize Reliable Controls RC-Studio software to program new, energy-efficient sequences of operation tailored to the facility's current mechanical footprint. The contractor will develop a fully customized Graphical User Interface (GUI) via RC-WebView, providing facility managers with intuitive 3D floor plans, equipment-level graphics, and system-wide dashboards. This phase also includes configuring alarm notifications, historical data trending, and user access levels to ensure secure, role-based monitoring and control of the building.

Phase 5: Commissioning, Training, and Handover The final phase requires rigorous, documented commissioning to verify system integrity. The contractor will perform a point-to-point checkout of every physical input and output, followed by functional performance testing to prove that all mechanical equipment operates precisely according to the approved sequences. Upon successful commissioning, the contractor will provide comprehensive, hands-on training for the facility's operations staff on the new Reliable Controls platform. The project will conclude with the formal handover of all final deliverables, including As-Built drawings, Operation and Maintenance (O&M) manuals, system backups, and software licensing.

8. QUALITY CONTROL: The CONTRACTOR will develop and implement a quality control plan specifically to this contract effort. Provide, for acceptance by the Contracting Officer, a Construction QC Plan submitted in a three-ring binder that includes a table of contents, with major sections identified with tabs, with pages numbered sequentially, and that documents the proposed methods and responsibilities for accomplishing activities during the construction of the project. CONTRACTOR's operational plan for accomplishing and reviewing work controls, fabrication controls, certifications, and documentation of quality control operations, inspections, and test records, including those for subcontractors. Furnish legible copies of the test and inspection records to the Contracting Officer.

Ensure records cover work placement traceable to the contract schedule, specifications and drawings, and are verifiable.

9. AT-OPSEC: For Contractors that do not require CAC but require access to a DoD Facility and/or Installation. Contractor and all associated sub-contractors employees shall comply with adjudication standards and procedures using the National Crime Information Center Interstate Identification Index (NCIC-III) and Terrorist Screening Database (TSDB) (DODIO 2000.16V1_DAFI 31-145, DAFI 31-101 and DODM 5200.08v3_DAFMAN 31-101v3), applicable installation, facility and area commander installation/facility access and local security policies and procedures (provided by government representative), or, at OCONUS locations, in accordance with status of forces agreements and other theater regulations.

10. OPERATION & MAINTENACNCE MANUALS: The contractor will submit all equipment manuals ensuring that they contain at a minimum the operating procedures, maintenance procedures, cut sheets, parts list, warranties, and detailed drawings for all equipment installed. A troubleshooting guide shall be included. The content of the manuals will be approved by the COR. Contractor will provide (3) hard copy sets of warranties and manuals to the COR before the contract is considered complete.

11. TRAINING: Contractor will schedule and coordinate all training with the COR prior to the end of the project. The contractor will submit the Operation and Maintenance manuals prior to the training session. The contractor will ensure that the training session is recorded. The contractor will provide a training session sign-in sheet and copy of the training session as part of the project close-out package.

12. TESTING: All equipment and product testing conducted during the course of construction is the responsibility of the contractor. The contractor shall ensure the testing procedures comply with manufacturers recommendations and be conducted by a manufacturer Representative when required. The contractor will review the final test reports with the COR prior to the acceptance/rejection of the work. A copy of all start-up/testing reports will be submitted to the COR.

13. WORK PLANNING: The CONTRACTOR shall maintain a set of redline drawings on the job. Redline drawings shall be updated as approved changes to the drawings occur. One set of the complete redline drawings shall be submitted at the completion of the project. Redline drawings are required for final acceptance.

14. DISPOSITION OF NONSALVABLE MATERIALS: Any waste generated by the CONTRACTOR is the responsibility of the CONTRACTOR and will not be left on government property but will be dumped in an approved landfill.

15. Upon completion of work, CONTRACTOR will notify the Contracting

Officer and Contracting Officer’s Representative for final inspection.

16. All surplus material generated as a result of construction and/or maintenance is the property of the government. Its disposition will be determined as directed by the Contracting Officer.

17. All warranty and accompanying documentation will be turned over to the

Contracting Officer.