PWS- Internet Cafe HVAC VRF Replacement.docx

Scope of Work (PWS) Project Title: Replace VRF System at Internet Cafe and Pain Clinic, 502F Facility: Martinsburg VA Medical Center, Martinsburg WV Location: Bldg. 500-F, Internet Café / Pain Clinic Project Number: 613-24-165 Prepared By: Facilities Management Service

1.0 Scope

This Performance Work Statement (PWS) defines the requirements for the removal and replacement of an existing Variable Refrigerant Flow (VRF) HVAC system in an occupied space at the Martinsburg VA Medical Center. The space is actively used for patient care and business operations. The Contractor shall furnish all labor, supervision, equipment, materials, tools, transportation, permits, testing, commissioning, and documentation to execute a complete turnkey replacement with minimal disruption to VA operations and patient care. The replacement Variable Refrigerant Flow (VRF) HVAC system shall be reintegrated with the existing Johnson Controls Metasys automation system.

Replacement of the VRF HVAC system shall incorporate the demolition and replacement in the following areas:

Heat Pump Units HPU-1 through HPU-17.

Air Cooled Condensing Units ACCU-1 and -2.

All interconnected refrigeration piping and components to include all changeover boxes (if applicable).

All local controls back to local JCI Metasys DDC/BAS Architecture.

Basis of Design for the VRF System is Mitsubishi per Mechanical Schedule. The VA would prefer an updated comparable JCI/York system to maintain system operator proficiency.

Additional work/understanding:

Existing Dedicated Outside Air System (DOAS) to remain.

Modify supply air and plenum attachments as necessary to connect to new HPUs.

All electrical connections to be made using existing circuits.

All reconnecting and programming of controls for the new system. Control, alarm and monitoring to remain the same.

Current sequence of operations to remain the same.

2.0 Background

The current VRF system serving the Internet Café and Pain Clinic has exceeded its useful service life and is exhibiting unreliable operation and decreased energy performance. Due to the mission-critical nature of this facility, maintaining temperature / humidity control and indoor air quality (IAQ) is essential. This work will occur while the building remains occupied, requiring precise coordination with VA staff and compliance with infection control, safety, and noise mitigation standards.

3.0 Applicable Regulations and VA Requirements

Work shall be performed in accordance with:

- VA Design Standards & Requirements:

- VA HVAC Design Manual (latest edition)

- VA Master Construction Specifications (Divisions 23, 26)

- VA Construction Safety Manual

- VA Handbook 6500 (if controls interface with VA network)

- Federal Regulations:

- OSHA 29 CFR 1926 and 1910

- EPA 40 CFR Part 82 (Refrigerant Handling)

- NFPA 70 (NEC), NFPA 90A/B

- ASHRAE Standards 15, 62.1, 90.1

- Local/State Building Codes

All personnel shall comply with VHA Directive 7716 – Safety and Health During Construction.

4.0 Performance Requirements

Detailed requirements for General, Demolition and Removal, New Installation, Occupied Space Protocols, Testing & Commissioning, and Training & Documentation will be included in this section, broken down into subsections as shown previously.

5.0 Period of Performance

Work shall be completed within 120 calendar days from the issuance of the NTP. Any delay or deviation must be pre-approved by the Contracting Officer (CO). No work may proceed on Federal holiday unless prior approval is received from the CO.

6.0 Government-Furnished Utilities and Access

| Electrical Power | Yes | Contractor to coordinate tie-ins | | Water | Yes | For cleaning, testing only | | Laydown/Storage | Limited | Coordinate with VA COR | | Elevator Use | Limited | Schedule required |

7.0 Security and Access Control

All Contractor personnel shall obtain VA-issued badges and undergo background checks per VA Directive 0710. All work areas shall be secured when unattended. Tools and materials must be stored in locked containers or removed daily.

8.0 Safety and Infection Control

Submit a Job Hazard Analysis (JHA) and Site-Specific Safety Plan. Follow all VA safety policies, including use of PPE, lockout/tagout procedures, and confined space regulations. Comply with VA’s Infection Control Risk Assessment (ICRA) matrix and signage requirements. Daily clean-up and end-of-day safety/ICRA walk-throughs are mandatory.

9.0 Deliverables

| Deliverable | Due Date | | Project Work Plan & Safety Plan | Within 7 days of NTP | | HVAC Equipment Submittals | Before material procurement | | ICRA/ILSM Documentation | Before mobilization | | Phased Installation & Shutdown Plan | Prior to any outages | | Commissioning Report | At project closeout | | As-Builts & O&M Manuals | Final acceptance | | Training Session & Sign-In Sheet | At or near completion |

10.0 Points of Contact

| Role | Name | Phone | Email | | Contracting Officer (CO) | [Insert] | [Insert] | [Insert] | | Contracting Officer’s Representative (COR) | Kwabena (Koby) Okrah |410-961-3510| Okrah, Kwabena <kwabena.okrah@va.gov>| | Facility Engineer / Safety Officer |Diana Graham | 304-263-0811 x3635 | diana.graham4@va.gov |

Retention and storage of federal records related to this PWS, 6500, regardless of medium, shall be created, maintained, and dispositioned in accordance with the VHA Records Control Schedule (RCS) 10-1, General Records Schedule (GRS) or other National Archives and Records Administration (NARA) schedule, if applicable.