4130--Campus Energy Management System Pre-Solicitation Notice

W.G. (Bill) Hefner Department of Veterans Affairs Medical Center 1601 Brenner Avenue Salisbury, North Carolina 28144
Subject: Statement of Work: Install Campus Energy Management System Location: Campus Project #: 659-22-100 Date: 12 December 2025 STATEMENT OF WORK Mechanical General: The project involves the upgrade and consolidation of the Energy Management Systems (DDC) providers serving Buildings 2 on the Salisbury VAMC Campus. The new system will follow Native BACnet protocol and be able to replace existing JCI and Schneider components with a single front-end user interface compatible with Siemens. This project is to convert systems from both pneumatic controls and obsolete DDC controls to the Siemens Desigo Native BACnet central system, where applicable, for Buildings 2. This project should be completed in 365 days and include a 1 year warranty on all items.
SCOPE OF WORK:
The Scope of work associated with the project includes the following:
Network & User Interface
Appropriate modifications to the existing network and cabling layout (Ethernet & MSTP) for the purpose of integration, including the installation of new Desigo panels.
Terminal Unit Controls
1) Modifications required to replace the Tridium/Niagara controls with BACnet, Siemens Desigo compatible controllers and sensors (where required). Include in the recommendation, devices that can remain (relays, switches, valves, damper motors, sensors, etc.)
To include the following: (i) New Siemens server to replace the existing Siemens server. (ii) Front-End Graphical User Interface modifications, including new floor plans for every level of Buildings 2. (iii) Main equipment panel and controller installations. (iv) Panel installations. (v) Panel modifications and replacement, and controller replacements, required on the main systems. (vi) Ethernet-level networking modifications. (vii) BACnet MSTP networking modifications. (viii) Pneumatic terminal-unit controller replacements. (ix) Removal of the compressed air system serving control components and devices.
to include all hardware, software, installation, wiring, cabling, programming of systems, graphics, and setup of alarms, schedules and trending; as well as networking requirements required to into a new Siemens server in accordance with the VA standards.
Applicable Codes and Standards:
DVA HVAC Design Manual, March 2024 ASHRAE Standard 13 Specifying Building Automation Systems ASHRAE Standard 135 BACnet Communication Protocol IEEE 802.3 Standard for Ethernet NFPA 70 National Electrical Code
EXISTING CONDITIONS
Network Level
1) The existing Building Automation System (BAS) consists of three (3) separate vender systems: Siemens Desigo, JCI Metasys, and Schneider SmartStruxure. All three (3) headend systems and HMIs are in Building 31 chiller plant offices.
2) The internet modem for the Siemens system-to-remain is in Building 5, Room G048A.
Building 2
1) The Siemens Desigo system is currently communicating with most of the areas in Building 2. This control system will remain. The known areas under control by Siemens:
(i) Air handling unit 2-AHU-2 (ii) Air handling unit 2-AHU-3 (ongoing work) (iii) Air handling unit 2-AHU-4 (iv) Air handling unit 2-AHU-4B (v) Air handling unit 2-AHU-11 (vi) Chilled water pumps (vii) O.R. chillers (viii) 1st Floor isolation rooms (ix) 3rd Floor isolation rooms (x) 3rd Floor isolation EFs (xi) 3rd Floor hot water system (xii) 3rd Floor temperature zones (xiii) 4th Floor isolation rooms (xiv) 4th Floor isolation EFs (xv) 4th Floor temperature zones (xvi) 5th Floor isolation rooms (xvii) 5th Floor isolation EFs (xviii) 5th Floor temperature zones
2) The JCI Metasys system is active but has had some equipment migrated over to the Siemens system. The remaining known equipment/areas under JCI control:
(i) Air handling unit 2-AHU-1 (AHU-5 in the field) (ii) Air handling unit 2-AHU-7 (iii) Air handling unit 2-AHU-15 (iv) Air handling unit 2-AHU-16 (presently being migrated to Siemens) (v) Ground Floor exhaust fans (vi) Ground Floor hot water system (vii) Ground Floor temperature zones (viii) Ground Floor differential space pressure monitors (ix) 4th Floor isolation rooms
The Schneider SmartStruxure system contains the majority of the systems that are to be integrated into the Siemens Desigo system. The known equipment/areas under Schneider control:
(i) Air handling unit 2-AHU-X (ii) Air handling unit 2-AHU-6 (iii) Air handling unit 2-AHU-9 (iv) Air handling unit 2-AHU-10 (v) Air handling unit 2-AHU-12 (vi) Air handling unit 2-AHU-14 (vii) Air handling unit 2-RTU-1 (viii) Air handling unit 2-RTU-Cardiology (ix) Air handling unit 2-RTU-Lab (x) 3rd Floor hot water system (xi) 3rd Floor temperature zones (xii) Penthouse hot water systems (Qty 3) (xiii) Steam zone valves (Qty 6)
Survey items remaining for Building 2 scope of work:
(i) Field locations of JCI and Schneider network components for the purpose of developing demolition drawings (ii) Trace out any remaining pneumatic components associated with building automation (iii) Fan coil controls (iv) Temperature zones of the Ground, 1st, and 2nd Floors
DESIGN APPROACH
Network Level
1) A new server will be provided to replace the existing Siemens server. The server is in Building 31 chiller plant offices. Network Cabling from Building 5 will be re-used to connect to the new server.
2) The building 5 network switch that connects to the Siemens server and to the building #2 fiber network switch will remain in its existing configuration.
Building 2
1) The existing fiber network switch, located in the Ground Floor Mechanical Equipment Room G009 will be expanded with a CAT6 to a new network switch, located in the same room.
The new switch shall serve Ground Floor equipment, differential space pressure monitors, and temperature zone controls currently being served by the JCI system. It is anticipated that the existing JCI cabinet enclosures serving air handling units 2-AHU-5 and 2-AHU-15 can be re-used.
Existing air handling unit 2-AHU-5 will require pneumatic device change-out for the modulating outside air, return air, and relief air control dampers, 2-way cooling coil control valve, and supply and return airflow measuring devices.
The Schneider-controlled steam zone valves, associated sensors, and controller will be replaced and integrated into the Siemens system. The cabinet enclosure will need to be replaced. This work is expected to occur during the summer months.
The points connected to the additional Schneider I/O modules (4 total) in Mechanical Equipment Room G009 that are located in two (2) of the older cabinet enclosures, have yet to be identified.
2) The existing network switch located on the 3rd Floor, Room 3177 will either be expanded or replaced as needed to integrate the Schneider-controlled equipment on this floor. Currently, this switch has one (1) available port.
New CAT6 cabling will be installed in the ceiling space of the occupied 3rd Floor in order to connect the new Siemens controllers serving existing air handling units 2-AHU-X and 2-AHU-6, temperature zones, and hot water heat exchanger and pump set.
3) The existing network switch located on the 4th Floor, Room 4167 will remain asis. Currently, this switch is being used to replace rooftop equipment controls to existing air handling units 2-AHU-2 and 2-AHU-3, along with the dilution exhaust fans and miscellaneous points.
4) The existing network switch located on the 5th Floor, Room 5003 currently serves the rooftop chillers, air handling units, and occupied areas of the 4th and 5th Floors. The 5th Floor switch is intended to connect to the new Penthouse switch and to integrate the remaining JCI and Schneider-controlled equipment that are on the 5th Floor level (4th Floor roof included).
New CAT6 cabling will be installed in the ceiling space of the occupied 5th Floor in order to connect the new Siemens controllers serving existing air handling unit 2-AHU-4-OR, temperature zones, and hot water heat exchanger and pump set.
5) A new 24-port network switch will be installed in the Penthouse and will carry the bulk of the equipment being integrated into the Siemens system. Each CAT6 cable to the switch will be dedicated to each equipment controller. The new 24-port switch will have a network drop down to the existing 5th Floor network switch.
(i) Existing air handling unit 2-AHU-7 is currently under DDC control. The new Siemens controller shall replace the existing JCI controller in the same cabinet enclosure. (ii) Existing air handling unit 2-AHU-8 will require pneumatic device changeout for the 2-position outside air control damper, face-and-bypass steam preheat coil, and 3-way modulating cooling coil control valve. A new control cabinet enclosure will be installed for this unit. This will require extending device signal wiring. (iii) Existing air handling units 2-AHU-9 and 2-AHU-10 will require pneumatic device change-out for the 2-position outside air control damper, face-and-bypass steam preheat coil, 3-way modulating cooling coil control valve, and humidifier control valve. Devices associated with the humidifier will be new. They include a new discharge humidistat, discharge high-limit switch, and space humidistat. The existing cabinet enclosure can be re-used for these units. (iv) Existing air handling units 2-AHU-12 and 2-AHU-14 are currently under DDC control. The new Siemens controllers shall replace the existing Schneider/ Andover controllers. The existing 2-AHU-14 cabinet enclosure can be re-used, but 2-AHU-12 will need to be separated from the shared cabinet enclosure with 2-AHU-9. This will require extending device signal wiring for 2-AHU-12. (v) Existing air handling unit 2-AHU-13 will require pneumatic device change-out for the 2-position outside air control damper, steam preheat coil, and 2-way modulating cooling coil control valve. A new control cabinet enclosure will be installed for this unit. This will require extending device signal wiring. (vi) Existing air handling unit 2-RTU-1 will require pneumatic device changeout for the 2-position outside air control damper, modulating steam preheat coil control valve, 2-way modulating cooling coil control valve, modulating steam reheat coil control valve, and humidifier control valve. Devices associated with the humidifier will be new. They include a new discharge humidistat, discharge high-limit switch, and return air ductmounted humidistat. A new control cabinet enclosure will be installed for this unit. This will require extending device signal wiring. (vii) Existing heating hot water systems, exhaust fans, and other miscellaneous points in the Penthouse are expected to be housed in three (3) new cabinet enclosures. This will require extending device signal wiring.
Programming for the sequences of operation and graphics mapping will be required for all equipment associated with work in Building 2. New programming will utilize existing, new, and change-over devices and therefore, will only meet ASHRAE 36 guidelines for high-performance sequences of operation where such devices already exist. For example, using AHU static pressure reset by poling VAV box damper positions.
Testing, Adjusting, and Balancing Contractor will be required to calibrate new airflow measuring devices and to calibrate the feedback from existing VAV boxes.
Electrical
GENERAL
The project involves the upgrade and consolidation of the Energy Management Systems (DDC) providers serving Buildings 2 on the Salisbury VAMC Campus. The new system will follow Native BACnet protocol and be able to replace existing JCI and Schneider components with a single front-end user interface compatible with Siemens. This project is to convert systems from both pneumatic controls and obsolete DDC controls to the Siemens Desigo Native BACnet central system, where applicable, for Buildings 2.
SCOPE OF WORK The following systems will be modified to suit the electrical demands of the project:
Normal Electrical Distribution at 208/120-volts Emergency Electrical Distribution at 208/120-volts Lighting systems and controls
B. The electrical design shall be in accordance with, but not limited to the following VA design standards:
VA Electrical Design Manual for New Hospitals, Replacement Hospitals, Ambulatory Care, Clinical Additions, Energy Centers, Outpatient Clinics, Animal Research Facilities, and Laboratory Buildings. NFPA 70 National Electrical Code National Fire Protection Association (NFPA) Standard 101 Life Safety Code
EXISTING CONDITIONS
Power
1) Emergency life safety and critical power branch panels are located on every floor of the building. The majority of the panels have spare circuit breakers or spaces to add a new circuit breaker as required.
DESIGN APPROACH
Power and Lighting
1) The intent of the design shall be to install new BAS panels adjacent to the existing outdated panels. Generally it was impossible to trace the power source of the existing BAS panel, therefore new 120-volt emergency branch circuit shall be routed to the new BAS network controller panel power supplies. This is required by VA standards. 2) Additionally, new network switches shall be installed in various locations throughout the three buildings. Local emergency 120-volt emergency branch circuits shall be provided for network switches as shown on drawings. 3) Where necessary, existing lighting and other ceiling mounted electrical devices shall be taken down and reinstalled in the same location during the course of the construction. 4) The circuits for all mechanical equipment, which have been scheduled for demolition, shall be removed back to the source.
Equipment Grounding and Wiring Devices
1) In general, 20-amp duplex receptacles will be located where required. All receptacles shall be hospital-grade, plug-tail type receptacles complying with NEC Art. 517.13(B). 2) All non-current carrying metallic parts of the electrical distribution system will be bonded to the grounding electrode system or building steel. 3) An insulated grounding conductor will be run with all power feeder and branch circuits to supplement the conduit ground. 4) All wiring shall be solid for wire #10 and smaller and stranded for wires larger than #10. 5) Nonflexible metallic conduit will be provided for all emergency circuits due to the need to provide redundant grounding and protection of the branch circuit. Metal-Clad cabling, Type MC, will be permitted for branch circuit wiring where concealed within partitions and above ceilings for lighting fixtures. In addition, liquid-tight flexible metal conduit will be used at motor and other vibration transmissive locations.
Contractor Trades: Mechanical Contractor Coordinate with the controls contractor to ensure seamless HVAC equipment interface and integration. Modify or relocate existing mechanical systems as needed to accommodate new control infrastructure. Provide support during system commissioning, functional performance testing, and final acceptance. Ensure all mechanical work complies with VA HVAC standards and ASHRAE guidelines. Qualifications: Licensed mechanical contractor with experience in healthcare environments. Familiarity with Siemens Desigo systems and BACnet protocol preferred. Controls Contractor (Siemens Certified) Install and program Siemens Desigo BACnet control systems, including hardware and software components. Replace existing pneumatic and outdated DDC controls with modern digital systems. Integrate HVAC equipment into the new Energy Management System (EMS). Conduct full commissioning, calibration, and validation of control systems. Provide end-user training and documentation for system operation and maintenance. Qualifications: Siemens-certified technician or firm with demonstrated experience in federal or VA projects. Must comply with VA cybersecurity and interoperability standards. Electrical Contractor Provide dedicated power supply to Siemens control cabinets and associated network switches. Remove and dispose of obsolete electrical components (e.g., Johnson Controls, Schneider Electric). Install new branch circuits, electrical panels, and conduit routing per NEC and VA specifications. Coordinate electrical shutdowns and temporary power solutions to maintain facility operations. Perform firestopping and patching of all penetrations created during electrical work. Qualifications: Licensed electrician with experience in hospital or healthcare facility electrical systems. Must be familiar with VA electrical safety protocols and infection control procedures. Low Voltage / Communications Contractor Install CAT6 or higher-rated network cabling for control panels, switches, and EMS components. Terminate and test all cable runs to ensure compliance with VA telecom standards. Coordinate with VA IT department for switch integration and IP address assignments. Label and document all cabling and connections for future maintenance. Qualifications: BICSI-certified technician or equivalent. Experience with VA telecom infrastructure and patch panel standards. General Contractor Provide overall coordination and scheduling of all subcontracted trades. Manage ceiling removal and replacement as indicated in demolition and construction plans. Perform wall patching, painting, and restoration following electrical and control installations. Develop phasing plans to minimize disruption to patient care and facility operations. Ensure infection control measures are in place during construction activities. Qualifications: Licensed general contractor with experience in VA or federal healthcare construction. Must comply with VA Interim Life Safety Measures (ILSM) and infection control protocols. Firestopping Contractor Seal all penetrations through rated walls and floors created during conduit and cable installations. Use UL-listed firestopping materials and methods. Ensure compliance with NFPA 101, VA standards, and local fire codes. Qualifications: Certified firestopping technician. Experience in healthcare facility fire barrier restoration. Commissioning Agent (CxA) Verify that all installed systems meet the design intent and operational requirements. Conduct functional performance testing and provide commissioning reports. Coordinate with VA stakeholders for final acceptance and turnover. Qualifications: Independent third-party CxA with experience in VA commissioning protocols. Must be familiar with ASHRAE Guideline 0 and VA Cx standards.