PWS - B1231 Phase-2 Boiler.pdf

PERFORMANCE WORK STATEMENT (PWS)

FURNISH, REMOVE, BOILER & PUMPS AT

BUILDING 1231 (PHASE-2)

LITTLE ROCK AFB, AR 72099

1. DISCRIPTION OF SERVICES

1.1. The contractor shall provide all qualified personnel, transportation, tools, equipment, materials and services required furnish, remove and install one HVAC 1.5-MBTU/H boiler at building 1231 on Little Rock AFB, AR 72099. The contractor shall accomplish all services below to meet the requirements of this Performance Work Statement (PWS). Work shall be in compliance with all Federal, State and local regulations, codes and license requirements for HVAC work in the State of Arkansas. Work shall be accomplished within 45 days of material arrival. Estimated delivery date of material is required to be sent to the contracting officer (CO) within 15 days of contract award.

1.2. The Government will neither supervise contractor employees nor control the method by which the contractor performs the required tasks. It shall be the responsibility of the contractor to manage its employees and to guard against any actions that are of the nature of personal services or give the perception of personal services. If the contractor feels that any actions constitute, or are perceived to constitute personal services, it shall be the contractor’s responsibility to notify the Contracting Officer (CO) immediately. These services shall not be used to perform work of a policy/decision making or management nature, (e.g., inherently governmental functions). All decisions relative to programs supported by the contractor shall be the sole responsibility of the Government.

2. SAFETY AND REGULATORY REQUIREMENTS

2.1. Building 1231 is operated by the 714th TRS Squadron. This is a Training Facility with normal operating hours - 7am to 6pm Monday – Friday. Not anticipating any weekend work needed to accomplish this project; however, the contractor may work weekends with pre-approval of the CO.

2.2. Pre-Install Requirements: Before services are commenced, the contractor shall inspect the work site and ascertain all information for the diligent performance of the service(s). The contractor shall notify the ordering agency of any conditions that prevent the suitable completion of these services to include operations that could endanger Government personnel or property and require appropriate abatement action. If the contractor discovers problems associated with the work after starting, he or she shall immediately notify the Contracting Officer (CO) for their approval if the work is to continue. Coordinate with the Government designated representative to have utilities/fire alarms etc.…turned on or off during the competition of the task.

2.3. Disposal of waste: All waste disposals are the responsibility of the contractor to include any fees or permits. Recycling containers shall be provided as needed for the operation for wire, conduit, sheet metal, and small equipment. Coordinate through the government representative with Little Rock AFB Recycle Center (501-987-6611) for the delivery/pick-up of metal recycle bins. Large bulk/equipment items i.e. chillers, AHU’s, condensing units, boilers, etc. will be coordinated with the recycle center for the contractor to deliver directly to a metal recycling vendor. It’s the contractor’s responsibility to transport to said location, have it weighed. Metal vendor shall be notified, and the weight ticket should state Delivered by Little Rock AFB Recycling Center and the total weight of the object. The contractor is responsible to deliver a copy of the ticket to the government representative.

2.4. All work shall be accomplished in accordance with all regulations and State of Arkansas licensing requirement regarding HVAC installation, maintenance and repair.

2.5. Airfield Waiver: If a crane is required for any of the installation of the equipment by Federal Law an airfield waiver must be accomplished and signed off by the FAA. This takes a minimum of 60 days to complete and will delay work till completed. Contractor will need to provide the type of equipment, tonnage and full boom height to the CO or government representative within five days of contract award.

3. WORK REQUIREMENTS

3.1. DEMO: Contractor shall disconnect/remove existing Hurst boiler (Mech. Rm A-1).

Contractor shall take care to remove existing Energy Management System (EMS) sensors, relays, wiring/conduit connected to existing boiler to re-utilize/connect to new boiler. Contractor shall remove/disconnect existing boiler stack. Contractor will remove existing boiler outside air louvers. Contractor will remove existing circulation pumps, boiler make-up water, filter feeder, and expansion tank. Contractor shall electrically disconnect the pump taking care to re-utilize/connect to new pump. Contractor will remove existing boiler intake louvers.

3.2. Equipment & Material – Contractor will furnish:

a. One Patterson-Kelley MODU-FIRE N1500 boiler w/NURO controls.

b. One self-contained/powered ProtoNode FPC BACnet interface.

c. Two Each Weil Model 6620-125-050-2 TEFC circulation pumps (130-GPM @ 85’

FTHD), Two Each Weil Flanged End Suction Diffusers (PN# 2704040) and Two Weil Triple Duty Valves (PN# 2704016)

d. Provide CAT IV 316 Stainless boiler stack: authorized manufactures Metal-Fab or Heat Fab

e. Provide Bell & Gossett bladder expansion tank Model B165, PN# 116482

3.2.1. All piping modifications necessary for installation of boiler, make-up water, filter feeder, expansion tank and system connections shall match the existing material to include the type of insulation, unless otherwise specified. All electrical materials shall meet Electrical Code and conform with existing electrical installation. Contractor shall verify and utilize the proper wire, conduit, and breakers for new equipment specifications.

3.3.: Installation: Contractor shall install:

3.3.1. Boiler: Place new boiler on existing pad and mount BACnet controller next to new boiler (do not attach to boiler) and provide 115/60/1 to controller. Install 240/60/1 4-wire with a neutral and a ground. Boiler power located in panel 1L9 in adjacent room. Contractor will modify existing supply/return lines and install isolation valves which will isolate the boiler from the system allowing boiler repairs without draining the system. Contractor shall install CAT IV 316 stainless steel stack according to manufacture specification complete with neutralization tank.

3.2.2. Boiler Make-Up Water, Expansion Tank, and Filter Feeder: Install a new boiler make-up water line after the existing backflow device and run line to the top of the air separator. Line will include isolation valves, new feedwater regulator, PSI gauges, bypass line, and a totalizing water meter. Make-up water line will connect to a brass tee on top of air separator with an isolation valve at the tee. New expansion take will remain in existing location. New tank shall be piped such that it will be able to be isolated at the tank, have a pressure gauge, and drain line ran to the drain. Contractor will insulate line with ¾” EPDM pipe insulation. Contractor will re-pipe the existing filter feeder. Both Chilled Water & Hot Water will have heat trace tape and be insulated.

3.2.3. Pumps: Contractor shall install new circulation pumps, end-suction diffusers, and triple duty valves. Contractor will install a PSI gauge and pipe it such that both sides of the gauge can be isolated to record suction/discharge pressure and differential. Contractor will replace existing motor control heaters. Contractor shall install vibration eliminators on each pump. Contractor not responsible for chemical treatment. Contractor shall have the HW system hadronically balanced to include pressure regulator valve, expansion tank and triple duty valve by a certified technician and provide a report to the COR.

3.2.4. Air Intake Louvers: Contractor shall install two sets of motorized air intake louvers.

Louvers shall open on a “Call for Heat” and close when the boiler is off. Contractor will have to provide both power and control wiring to these louvers. Louvers will be properly mounted/secured and sealed. Contractor shall paint exterior trim to match louvers removed.

3.2.5. Controls: Contractor shall connect ProtoNode controller to EMS system. Contractor will provide a shielded outdoor air sensor; emergency boiler stop button located at the main mechanical room entrance and incorporate air intake damper activation into the boiler control program. Contractor will provide a wiring detail and control sequence to the COR.

3.3 Final Confirmation – Contractor will utilize a certified Patterson-Kelley manufacture representative to verify/confirm contractors’ installation. Representative will check for proper pipe installation, electrical wiring, control wiring. Representative will perform an operational test with the COR present. Representative will perform a “Start-Up Combustion Analysis” with a certified/calibrated combustion analyzer. Representative will annotate test results on a document to provide to the “Manufacture” and the COR. This documentation is necessary for warranty. Contractor or Representative will need to provide Start-Up/Warranty documentation to the COR. Pumps will be tested by a certified hydronic balance representative and COR present. Hydronic balance representative will provide COR with a balance report.

3.4. Welding, Cutting and Brazing Operations: All welding, cutting, and brazing operations shall conform to the Standard for Fire Prevention in Cutting and Welding Process, NFPA 51B, and the Standard for Safeguarding Construction, Alteration, and Demolition Operations, NFPA

241. No welding, cutting, or brazing operations may begin until an Air Force Form 592, USAF Welding, Cutting and Brazing Permit, has been issued. An AF Form 592 will be issued by the Fire Department upon completion of an inspection to determine that the operation can be safely accomplished at the desired location. The responsible contractors shall notify the Fire Alarm Communication Center, at 987-3737 / 3228, at least one hour prior to the start of the operation.

Normally an inspector will be available to issue a permit within 30 minutes from the time called.

The person receiving the permit, operator performing the work or on scene supervisor shall sign in block 14 prior to beginning the work. The permit must be maintained on site for the duration of the operation. Upon completion of the work, an After Operation Inspection shall be complete to ensure that the area is in a fire safe condition. The person performing the After Operation Inspection shall sign in block 16. At the end of the day, all completed permits shall be returned to the fire department. Further information may be obtained through the Base Fire Prevention Office.

4. GOVERNMENT FURNISHED EQUIPMENT

4.1. None

5. GENERAL REQUIREMENTS

5.1. Contractor personnel and vehicles must possess appropriate passes. These shall be obtained from Installation Security Forces Pass and ID at the Vehicle Inspection Center. REAL-ID-compliant driver’s license or state-issued ID card, or another acceptable form of identification, is required for entering federal installation.

5.2. The Contractor is subject to all installation fire, safety, security, and traffic regulations.

5.3. The Government contracts on the understanding that the Contractor is complying with applicable laws concerning workplace safety.

5.4. The Contractor is subject to all citations and penalties for violation of applicable workplace safety laws. The burden of compliance rests with the Contractor. Enforcement of workplace safety laws is the responsibility of the agency specified in the applicable law.

5.5. The Contracting Officer may notify the Contractor of hazards in Contractor operations that endanger Government personnel or property and require appropriate action. This provision does not constitute assumption of liability for Occupational Safety and Health compliance on the part of the Government or negate other agency responsibility for enforcement of applicable laws.

5.6. Accident prevention principles must be thoroughly integrated into all operations. Unsafe conditions and practices, as identified by the designated representative, must be corrected immediately.

5.7. Contractor Employees: While on the installation, the contractor shall not employ persons for work on this contract if such employee is identified to the contractor by the Contracting Officer as a potential threat to the health, safety, security, general well-being or operational mission of the installation and its population. Contractor personnel shall present a neat appearance and be easily recognized as contractor employees. This may be accomplished by wearing distinctive clothing bearing the name of the organization or by wearing appropriate badges containing the organization's name and the employee's name. Contractor personnel must wear issued base identification cards at all times while on the installation.

5.8. Service contracts shall require contractor employees to identify themselves as contractor personnel by introducing themselves or being introduced as contractor personnel and displaying distinguishing badges or other visible identification for meetings with government personnel. In addition, contracts shall require contractor personnel to appropriately identify themselves as contractor employees in telephone conversations and in formal and informal written correspondence.

6.0. WARRANTY

6.1. Contractor shall guarantee all equipment, material, workmanship and labor from defects for a period of 1 years from the date of acceptance of the work. A warranty letter detailing the work accomplished per facility is required to be furnished to the CO or government representative upon acceptance of the work. Contractor will provide a manufacture equipment warranty letter detailing each piece of equipment warranty to include what is covered and for how long. This documentation is necessary for the warranty program.

7.0. APPENDIXES

APPENDIX A: Commander’s Environmental Policy APPENDIX B: Cutsheets: Boiler, Exp. Tank, Diffuser, Valve, Pump APPENDIX C: Patterson-Kelley ProtoNode & Modu-Fire N1500-MFD Installation Manuals https://www.pattersonkelley.com https://www.pattersonkelley.com/

APPENDIX A: