SOW Repair JACC Chilled Water Piping rev 1.15.2025.pdf

Statement of Work

Repair JACC Chilled Water Piping VA Gulf Coast Veterans Health Care System (GCVHCS)

JACC Pensacola, FL 32507

520-25-107

Table of Contents

1. Sole Source Subcontract Requirements

2. Phasing

3. Phase 1: Penthouse Waterproofing

4. Phase 1: Outside Penthouse Grooved Pipe Fastener Replacement

5. Phase 2: Misc. Damaged Insulation

6. Phase 2: Penthouse Grooved Piping Replacement

7. Interior Finishes

8. Equipment

9. Fire Protection During Construction

10. Infection Control

11. Installation Time

12. Special Bid Considerations by the Contractor

13. Safety Considerations

14. Notes

Revision Date:

1/15/2025

Scope of work

The awarded Contractor shall furnish all labor, tools, materials, equipment, subcontractors, and supervision necessary to safely perform all work associated with repairing the damage from the Memorial Day 2023 flood and executing preventative measures to prevent reoccurrence in the future. This work shall be performed at the VA Joint Ambulatory Care Center (JACC) in Pensacola, FL.

1. Subcontract Requirements- See Brand name J&A

a. Siemens

1. The existing controls system was built and is maintained under contract with Siemens. Therefore, all controls design, installation, and programming shall be through Siemens.

b. Kurita Sole

1. Kurita America operates the existing chemical program for the GCVHCS at the JACC. Kurita must be subcontracted to treat the chilled loop after all new piping has been flushed and cleaned.

c. Master Insulation

1. Master Insulation along with Faircloth Metallurgical Services assisted in root cause failure analysis for the 2023 JACC flood event. Due to their understanding of the physical root causes of these catastrophic failures, all insulation materials and services are to be completed by Master Insulation.

d. Southern Commercial Installations (SCI)

1. Southern Commercial Installations (SCI) maintains the existing service contract for all GCVHCS furniture services and as such, must be subcontracted to perform these office breakdowns to maintain the manufacturer’s (Haworth) warranty. This also prevents contractual conflict with SCI’s ongoing contract with the GCVHCS. This includes but is not limited to after-hours moves.

2. Phasing

a. This project shall be completed in phases to ensure least amount of disruption to veterans and staff and to ensure life safety requirements remain within required limits throughout the entire construction process.

b. Two phases are required for the work:

1. Phase 1 to include:

1. Outside Penthouse Grooved Pipe Fastener Replacement

2. Penthouse Waterproofing

2. Phase 2 to include:

1. Misc. Damaged Insulation

2. Penthouse Grooved Piping Replacement

3. Phase 1: Penthouse Waterproofing

a. Angle Flashing

1. Angle flashing must be fabricated from 24-gauge galvanized sheet metal and installed around the perimeter walls of the 3rd floor mechanical penthouse. This flashing must also be installed around curb penetrations in the mezzanine floor.

2. Flashing must be a minimum of 6” in height.

3. The new metal flashing must be anchored to the existing wall studs and concrete floor deck.

4. Angle flashing and existing concrete floor must be scarified to properly prepare the surfaces for the application of new waterproofing.

5. All Soprema products listed below are basis-of-design products and not required as a sole source.

6. All surfaces to receive the new waterproofing to be cleaned with

Soprema Alsan RS and primed with Soprema Alsan 276 per the manufacturer's instructions.

7. All vertical joints in the new angle flashing to be sealed with Soprema Alsan RS 230 Flash And Soprema Alsan RS Fleece as per the manufacturer's instructions.

8. The flange of the new metal flashing must be sealed to the concrete floor surface with Soprema Alsan RS 230 Field and Soprema Alsan RS Fleece as per the manufacturer's instructions.

9. Coordinate with COR to ensure standoff distance is adequate in front of existing electrical equipment.

b. Miscellaneous Floor Penetrations

1. Penetrations unable to be angle flashed due to access constraints must be coated with Soprema Alsan or approved equal water proofing solution to prevent water migration down ductwork or other existing floor penetration. Application for waterproofing penetrations must following manufacturer’s instructions.

2. This includes but is not limited to air handler ductwork, piping penetrations, or beam penetrations.

a. Equipment Lift Floor Hatch and Doorways

i. Waterproofed angle flashing with structural backing should be used on the sides of the lift hatch where handrails are present.

ii. Provide and install basis-of-design Garadam or approved equal 2" High Flood Barrier Threshold Kits across host travel path. See Figure 1 below.

Figure 1: Equipment Lift Floor Hatch

iii. Edges of threshold seal must be neatly tied or overlapped with water proofed angle flashing to create a water tight fit at the connections.

iv. Provide and install watertight door seals on 3 penthouse doors currently without door seals.

b. Floor drains

3. Scanning for locations

1. Use 3D LiDAR data and high-resolution panoramic imagery to generate an AutoCAD Civil 3D Map of the 3rd Floor Mechanical Penthouse existing.

2. AutoCAD Civil 3D Map will provide pertinent features located along the floor, surfaces, low-spots, and slope arrows to aid in the determination of drain locations.

3. The AutoCAD Civil 3D file shall contain pertinent features of the 3rd Floor Mechanical Penthouse including, but not limited to walls, columns, equipment edges, raised equipment platforms, etc located along the floor level only.

4. Core drilled drains

Water proofed angle flashing

1. A Ground Penetrating Radar (GPR) scan must be completed at each of the desired six (6) new drain locations prior to core drilling being scheduled.

2. Furnish and install a minimum of six (6) new 3” floor drains in 3rd Floor Mechanical Penthouse. Tie into existing sanitary drains.

3. Final locations to be coordinated with COR in accordance with GPR and Civil 3D Map above.

4. Phase 1: Outside Penthouse Grooved Pipe Fastener Replacement

a. Chilled Water outside Penthouse

1. All work in this section applies to all chilled water pipe network outside the penthouse. This includes but is not limited to mechanical connections in the central energy plant, 1st and 2nd floor plenums, and any chases where Victaulic connections exist.

b. Insulation and Fastener Replacement

1. General

1. Chilled water must be isolated and drained before any fasteners are removed.

2. Existing insulation on chilled water must remain in place until immediately before fasteners are replaced to prevent sweating on ceiling materials below.

3. Provide and install Victaulic fasteners for direct replacement of existing hardware.

I. Existing chilled water connections are II. Stainless steel oval neck track bolts meeting ASTM

F593, Group 2 (316 stainless steel) condition CW.

III. Stainless steel heavy nuts meeting ASTM F594, Group

2 (316 stainless steel) condition CW with galling reducing coating.

4. New hardware to be replaced according to Victaulic I-100 Field Installation Handbook and Appendix A:

I. This includes the required use of anti-seize compound on all stainless-steel hardware.

5. All means of access to Victaulic joints are the responsibility of the contractor. All access must be in accordance with VA and OSHA safety policies.

6. Contractor is responsible for replacing any material removed or damaged gaining access to Victaulic joints including but not limited to ceiling tiles, insulation, gypsum ceiling systems, ceiling track, light fixtures, HVAC diffusers, HVAC grilled, wireless access points (APs), etc.

7. Contractor is responsible form performing a planning site survey on the chilled water loop and provide a phased fastener replacement plan for VA approval and shutdown scheduling.

2. New Insulation

1. Master Insulation along with Faircloth Metallurgical Services assisted in root cause failure analysis for the 2023 JACC flood event. Due to their understanding of the physical root causes of these catastrophic failures, all insulation materials and services are to be completed by Master Insulation.

2. Materials utilized must be minimum 1” closed-cell elastomeric foam and basis-of-design FOAMGLAS® cellular closed-cell glass.

3. Minimum 1” closed-cell elastomeric foam with black finish is requested for all Victaulic couplings receiving replacement bolts above ceilings.

4. Minimum 1” closed-cell elastomeric foam with painted white finish is requested for all Victaulic couplings receiving replacement bolts in the mechanical plant.

5. Minimum basis-of-design FOAMGLAS® cellular glass is requested for straight piping insulation damaged or needing repair following bolt changes both above ceilings and in the mechanical plant.

c. Working above office space

1. VA is responsible for removing IT devices, staff personal belongings, health data, and biomedical equipment.

2. Upon VA removal of all previously listed items, contractor is responsible for removing and storing systems furniture required to access overhead couplings having fasteners changed.

3. Southern Commercial Installations (SCI) maintains the existing service contract for all GCVHCS furniture services and as such, must be subcontracted to perform these office breakdowns to maintain the manufacturer’s (Haworth) warranty. This also prevents contractual conflict with SCI’s ongoing contract with the GCVHCS. This includes but is not limited to after-hours moves.

4. Contractor must provide offsite, climate-controlled storage to temporarily store furniture during the duration of overhead work.

5. Anything unable to be removed from the office space must be plastic wrapped and tightly tape sealed by the contractor to prevent dust buildup and potential water damage during work.

d. Chilled loop treatment

1. Inspect and empty all chilled water strainers while loop is evacuated.

2. Kurita America operates the existing chemical program for the Gulf Coast Veterans Health Care System at the JACC. Kurita must be subcontracted to treat the chilled loop after all new piping has been flushed and cleaned.

3. Retreatment of the full chilled loop requires approx. 10 gallons of Kurita America’s Protect-1201P closed loop corrosion inhibitor. Contractor is responsible to purchase any necessary treatment chemicals for the completion of this work.

e. Work Schedule

1. 100% of work is to be performed outside normal duty hours (0700 to

1630) Monday through Friday, exclusive of Federal holidays.

5. Phase 2: Misc. Damaged Insulation

a. Master Insulation

1. Master Insulation along with Faircloth Metallurgical Services assisted in root cause failure analysis for the 2023 JACC flood event. Due to their understanding of the physical root causes of these catastrophic failures, all insulation materials and services are to be completed by Master Insulation.

b. Pulmonary (2A135)

1. Disassemble ceiling grid and associated fixtures for safe access to underside of roof decking.

2. Utilize basis-of-design HANDIFOAM® E84 (HFO) or approved equal to apply 5” insulative layer to underside of roof decking. Spray area is approximately 225 SF.

3. Reinstall ceiling grid and associated fixtures.

c. Loading dock HVAC duct

1. The location of this duct work is directly above the only active loading dock entrance at the JACC. Care must be taken when erecting scaffolding and overhead pedestrian protection must be provided if the scaffold is to remain in place during any normal duty hours (0700 to 1630) Monday through Friday.

2. Remove approximately 150 SF of dura rock on the loading dock ceiling for access to insulate duct.

3. Insulate 18x18” exhaust duct (approx. 30 LF) using foil faced blanket insulation.

4. Replace cement board removed for exhaust duct access.

5. Provide and install 2’x2’ ceiling access door.

6. Finish dura rock to match existing color and texture.

d. Loading dock repair

1. Replace approximately 16 SF of water damaged dura rock around storm water drain pipe penetration

2. Finish to match existing

e. Work Schedule

1. All work is to take place after normal duty hours (0700 to 1630) Monday through Friday, exclusive of Federal holidays. C

6. Phase 2: Penthouse Grooved Piping Replacement

a. Chilled Water inside Penthouse

1. All work in this section applies to all chilled water pipe network inside the 3rd floor penthouse.

b. New Piping

1. Prior to start work, field survey existing site condition and features.

Verify at project site the exact size and clearance of all existing piping being connected to or removed to allow new piping.

2. Install new 304L stainless steel chilled water supply and return piping using screwed, welded, and flanged pipe according to VA spec 23 21 13 Hydronic Piping. Fitting determined by pipe size. No grooved pipe is allowed on chilled water service.

1. 2 inches and smaller: Screwed or welded joints

2. 2-1/2 inches and larger: Welded or flanged joints

3. Per JACC as-built structural drawing SS 103.7- Piping 8" and greater in diameter shall be supported by steel beams and joists. Piping shall not be supported from metal roof deck. Piping may be supported from the rib (thickest) portion of composite deck and concrete. Piping supported by joists shall be within 6" of joist panel points. Piping 8" diameter and greater and running parallel to joists/ beams shall be supported by at least two (2) joists/ beams. Pipes 8" diameter and greater supported by joists shall have support points at 5 feet o.c. max.

In each direction."

4. Weld Inspection

1. Contractor to provide independent, third party radiographic non-destructive testing (NDT) for a minimum of 10% of new welds at random.

2. Minimum ASNT Level-II qualified person must establish radiographic procedure to be approved by COR.

3. Contractor shall be responsible for carrying out Radiography;

rectification of defects and re-radiography of welds repaired/rectified at their cost.

4. Where random radiography is specified, the first weld of each welder shall be completely radiographed. In the case of pipe of size 6″ and below, the first two welds shall be completely radiographed.

5. For each weld performed by a welder found unacceptable, two additional checks shall be carried out on welds performed by the same welder. This operation is iterative and the two additional welds for each weld deemed unsatisfactory shall be continued till such time that two consecutive welds of satisfactory quality are found for every defective weld.

5. Existing piping shall remain in service throughout fabrication of new piping.

1. Phase and schedule cutovers of chilled water from existing piping to new piping and submit to COR for approval.

2. Scheduling of cutovers shall be done in a way to prevent all disruptions of HVAC service during normal business hours Monday-Friday 7am-4:30pm excluding federal holidays.

6. Existing soldered or brazed piping and insulation to remain.

7. All dissimilar metal connections shall be made using dielectric fittings.

Any existing dielectric fittings with grooved connections shall be replaced.

8. All hydronic piping elements with grooved joints must be replaced with fittings for steel pipe according to VA Spec 23 21 13 Hydronic Piping.

Grooved pipe and fittings are strictly prohibited.

9. Piping elements include but are not limited to electronic hydronic control elements and instrumentation, circuit setters, balance valves, strainers, air separators, test ports, gauge ports, etc.

1. The existing controls system was built and is maintained under contract with Siemens. Therefore, all control devices, design, installation, and programming shall be through Siemens.

2. All controls installed or replaced shall be native BACnet.

c. Hot Work

1. The contractor is responsible for safely planning and fabricating a hot work area exhaust system that prevents smoke and smoke smells from making their way into the HVAC system and lower, occupied floors.

2. Prior to beginning hot work while the JACC is occupied, contractor will be required to perform after-hours functional test of exhaust system.

3. Contractor will be permitted to utilize existing JACC general exhaust provided systems are returned to their initial condition following construction.

4. A hot work plan must be proposed by the contractor for approval by VA COR before any hot work begins. Adjustments to this plan have the potential to be required as conditions and work locations change within the penthouse.

5. VA Maintenance and Operations (M&O) will be responsible for safely placing the Simplex fire panel monitoring system in bypass while hot work is taking place and for communicating with Navy Corry Station Fire Dept., the responding fire emergency service house for the JACC.

d. Master Insulation

1. Master Insulation along with Faircloth Metallurgical Services assisted in root cause failure analysis for the 2023 JACC flood event. Due to their understanding of the physical root causes of these catastrophic failures, all insulation materials and services are to be completed by Master Insulation.

e. New Insulation

1. Materials utilized must be closed-cell elastomeric foam and basis-of-design FOAMGLAS® cellular closed-cell glass. Closed-cell elastomeric foam is requested for all appurtenances such as valves, flanges, elbows, tees, circuit setters, etc. Basis-of-design FOAMGLAS® cellular glass is requested for straight piping.

f. Demolition Work

1. Remove and dispose of all grooved piping and grooved piping elements.

2. Abandoned Lines: All service lines such as wires, cables, conduits, ducts, pipes and the like, and their hangers or supports, shall be removed back to their source.

g. Hydronic balance

1. Conduct hydronic balance per specification section 23-05-93 Testing, Adjusting, and Balancing (TAB) for HVAC

2. Scope of hydronic TAB is inclusive of all reheat and chilled loop networks at the JACC site, both those being replaced and those undisturbed.

h. Closed loop treatment

1. Inspect and empty all chilled water strainers while loop is evacuated.

2. Kurita America operates the existing chemical program for the Gulf

Coast Veterans Health Care System at the JACC. Kurita must be subcontracted to treat the reheat and chilled loops after all new piping has been flushed and cleaned.

3. Retreatment of the full chilled loop requires approx. 10 gallons of Kurita America’s Protect-1201P closed loop corrosion inhibitor with blue dye.

4. Retreatment of the full reheat loop requires approx. 10 gallons of Kurita America’s Protect-1201P closed loop corrosion inhibitor with red dye.

5. Contractor is responsible to purchase any necessary treatment chemicals for the completion of this work.

i. Work Schedule

1. 80% of work is to be performed during normal duty hours (0700 to

1630) Monday through Friday, exclusive of Federal holidays.

2. The remaining 20% of work must be done outside normal duty hours to prevent impacts from patient care due to HVAC cutover outages, overhead lifts, hot work area preparation and testing etc. Any work performed outside of normal working hours shall be coordinated with the COR.

3. If the contractor is unable to safely exhaust hot work smoke and fumes, all hot work will be required to be completed outside normal duty hours.

7. Interior Finishes

a. Replace all ceiling system disturbed by construction/demolition process.

b. Repair any damaged flooring from the construction/demolition process.

c. Repair walls/doors/trim of any damage in the construction/demolition process.

8. Equipment

a. Any equipment or rigging shall be provided by the contractor or equipment vendor. No equipment will be provided by VHA.

1. Equipment includes but is not limited to ladders, manlifts, scaffolding, forklifts, rental chillers, temporary cooling units, etc.

b. Contractor is responsible to provide all scaffolding or rental equipment necessary to complete work at height.

c. Scaffolding locations expected for above the ceiling Victaulic bolt changes is shown in drawings.

d. Contractor is responsible to mobilize and safely deliver their equipment to the work area.

e. Equipment staging locations to be approved by COR.

9. Fire Protection During Construction

a. Coordinate with the project Contracting Officer Representative (COR) prior to and throughout the construction period.

b. Coordinate with the project Contracting Officer Representative (COR) prior to and throughout the construction period.

c. Fire protection during construction shall comply with VA Master Construction Specification (VAMCS) 01 00 00, General Requirements. (Note: VAMCS 01 00 00, General Requirements, addresses NFPA 241, Joint Commission Interim Life Safety Measures, Hot Work Permits. This specification section was formerly section 01010.)

d. Separate all occupied areas from demolition, renovation, or construction activities by temporary smoke-tight construction partitions of gypsum board or other approved non-combustible or limited-combustible material. Partitions shall be full height, extending through suspended/hard ceilings to the floor slab or roof deck above and shall be one-hour fire rated, unless sprinklers are installed and are operational on both sides of the temporary partition whereupon the partition may be permitted to terminate at the ceiling in accordance with NFPA

241. Where the ceiling on one side of the temporary construction barrier has been removed, the temporary wall would need to go to the deck above. This requirement is due to the inherently greater potential for fire or hazardous materials incidents associated with the combustibles and operations of demolition/construction. This risk is made worse by the likelihood of compromised fire protection systems and fire/smoke resistant construction. This does not obviate the need to provide other protective measures to contain dust and debris as specified by VAMCS 01 00 00 section 1.8(D)(2). Sprinklers are considered to be operational when they are installed in accordance with NFPA 13 (spacing, protection, distance from the ceiling, etc.) and there is a sufficient automatic water supply. If the ceiling was removed and the sprinklers remain at the original ceiling level, they would likely not be considered operational.

e. Provide dust proof one-hour / fire-rated drywall construction barriers to separate construction from the operational areas of the clinic in order to contain dirt debris and dust. Barriers shall be sealed and made presentable on clinic occupied side.

Install a self-closing rated door in a metal frame, commensurate with the partition, to allow worker access. Always maintain negative air. A fire-retardant polystyrene, 6-mil thick or greater plastic barrier meeting local fire codes may be used where dust control is the only hazard, and an agreement is reached with the COR and Safety Office.

f. Phase construction as necessary to ensure that obstruction of exits is minimized or avoided. If exits are obstructed during construction, provide alternate exit routes during each phase of construction, and identify the alternate routes on the construction drawings.

g. Minimize or avoid disruptions to fire alarm and sprinkler systems. Delineate phasing of construction to ensure that installations of new systems are expedited, and where possible, maintain existing systems in service until the replacement system is operational. If fire protection systems are to be disrupted, ensure procedures are incorporated to maintain equivalent levels of fire protection and provide 5 calendar days formal written notification to COR and Safety Office before fire alarm systems are taken out of service.

10. Infection Control

a. See pre-construction infection control risk assessment (PCRA) and “contracting only” infection control risk assessment (ICRA) attached to this solicitation for contract requirements.

b. Contractor is responsible to implement all requirements of VAMC’s Infection Control Risk Assessment (ICRA) permit and request any clarifications to ICRA requirements during the solicitation phase.

c. During construction, VA Engineering and Infection Control will monitor conditions in and around work areas and will require the Contractor take corrective action immediately for any exceptions to ICRA requirements.

11. Installation Time

a. The construction portion of this project will consist of two separate periods, each of which must be preceded by a NTP issued by contracting.

1. Pre-construction period – 90 Days – Contractor to provide the following deliverables before the end of this period:

I. Submittal log of all submittals to be approved during the project.

II. Site survey of pre-existing conditions.

III. All submittals are to be approved by VA COR

2. Construction period – All contractually required work and tests must be successfully completed within 275 calendar days of issuance of Notice to Proceed for construction.

12. Special Bid Considerations by the Contractor It is the responsibility of the Contractor and all involved sub-contractors to visit the site and field verify all existing conditions necessary to be addressed for the pricing of this subject project. All disposal costs and fees for debris removal will be the contractor’s responsibility. The contractor will be responsible for cleanliness of the building area exterior and providing their own dumpster on site.

13. Safety Considerations Contractor’s shall provide and utilize all safety requirements in accordance with OSHA regulations in the performance of the work.

14. Notes

a. The Contractor shall submit ALL samples, including manufacture’s literature, of newly proposed materials for approval. No materials shall be procured or installed prior to the approval of the samples.

b. Site shall always be kept clean and free from debris, and the contractor shall remove debris daily from the health care system property. Contractor will not be allowed to use Government tools, materials, and/or labor for this project.

c. All work is to be performed in strict compliance with the attached specifications and “Scope of Work”.

Appendix A: Maximum Torque Values for Stainless Steel and Non-Ferrous Fasteners