MODIFICATION
Z -- Loch Raven Building 4 Boiler Replacement
- Notice Date
- 10/25/2023 8:19:45 AM
- Notice Type
- Solicitation
- NAICS
- 236220
— Commercial and Institutional Building Construction
- Contracting Office
- 245-NETWORK CONTRACT OFFICE 5 (36C245) LINTHICUM MD 21090 USA
- ZIP Code
- 21090
- Solicitation Number
- 36C24523B0009
- Response Due
- 12/5/2023 11:00:00 AM
- Archive Date
- 02/03/2024
- Point of Contact
- Brandon S Parker, Contract Specialist
- E-Mail Address
-
Brandon.Parker2@va.gov
(Brandon.Parker2@va.gov)
- Awardee
- null
- Description
- ?.## SCOPE OF WORK SCOPE OF WORK 512-22-201 PROJECT DATA: TITLE: Loch Raven Building #4 Boiler Replacement PROJECT No: 512-22-201 FACILITY: Loch Raven VAMC, 3901 Loch Raven Blvd, Baltimore, MD 21218 CONSTRUCTION DURATION: 180 days from Receipt of Notice to Proceed GENERAL SCOPE: MECHANICAL The contractor shall provide all supervision, labor, materials, and equipment to perform replacement of existing boilers at Building 4 of the Loch Raven VAMC in Baltimore, MD. Building 4 is a non-mission critical building that houses engineering, facilities, police, and law offices. The building is scheduled for demolition in approximately 3 years. The existing system consists of two (2) Lochinvar, 990 MBH copper-fin, heating water boilers. The two boilers are old and in need of replacement. Existing combustion air and flue piping is connected to the boilers and extends through the adjacent exterior wall. The 10 combustion air piping terminates directly outside the wall with wall cap, and the 10 flue piping runs vertically and discharges above the roof. Existing heating water supply and return piping serves the make-up air unit, baseboard heaters, and unit heaters located throughout the building. The existing system consists of an existing expansion tank, air separator, and two heating water pumps (57 GPM each), and unit heater located in the mechanical room. Existing condensate piping from the boilers discharges into a floor drain located adjacent to the boilers. Existing boilers are constant volume and modulate to maintain 180 degrees F supply water temperature. OBJECTIVES The existing boilers and all associated accessories will be removed. The proposed system includes adding two (2), 1,000 MBH high efficiency, condensing water boilers. New heating water supply and return piping will be added to accommodate the revised layout and will connect to the existing mains. The existing air separator, expansion tank, and heating water pumps will remain. New 50 GPM boiler circulating pumps will be supplied with each boiler. The selected condensing water boilers are unable to meet all requirements in the Safety Device Testing manual, however, OCAMES granted approval since this is a temporary installation and the building is to be demolished. New 6 combustion air and flue piping will be added for each boiler. The flue piping will connect to the existing 10 piping and discharge above the roof. The combustion air piping will route through the existing openings in the adjacent exterior wall and terminate a minimum of 12 past the wall. A new 670 CFM exhaust fan will be added to provide 6 air changes per hour of ventilation in the mechanical room. Make-up air to be provided by the 24 x24 intake louver. The existing unit heater will heat the incoming outside air. The existing air separator, expansion tank, and heating water pumps will remain in the new system. Dual fuel is not required for this application. The option was requested by the VA so that the boilers could be re-used and meet specifications in a future project once Building 4 is demolished. Controlling the boilers from a remote location is not allowed. Packaged boiler controls shall be integrated into existing building automation system for monitoring and alarm. The boilers shall switch manually for lead/lag based on run time, per VHA directive 1810. On a call for heating, the lead boiler control valve shall modulate open, circulating pump shall activate, and boiler shall energize to maintain a return water temperature setpoint of 140 degrees F (Adj.) PLUMBING Condensate and gas piping will be revised to accommodate the new boiler layout. Revisions to both the gas piping and condensate shall be shown or referenced on the mechanical plans. Gas piping from existing 3 low pressure line, condensate from new boilers will be through acid neutralization and extend to floor drain. Make-up water enters the system through the existing air separator. This will be existing to remain. The existing water heater will remain in place. ELECTRICAL Existing Conditions & Demolition The electrical equipment serving existing boilers and related mechanical equipment, in Building 4, will be removed. All power and control wiring serving legacy equipment shall be removed back to the power source. Building 4 existing loads are fed from Panel L, located on the wall outside of the Mechanical Room. This panel will serve new loads as capacity and space is made available after demolition. Proposed Systems The electrical distribution in Building 4 will be upgraded to serve two (2) new boilers and relocated controls along with a temporary generator. In the event of a loss of power, a temporary generator will be provided to serve Panelboard L. Upgrades will include a new 200A manual transfer switch and 200A generator connection box. Applicable Codes and Guides: NFPA 70 National Electrical Code (NEC) NFPA 99 Healthcare facilities NFPA 101 Life Safety Code VA Electrical Design Manual (EDM) National Electrical Manufacturers Associations (NEMA) Institute of Electrical and Electronics Engineers (IEEE) Wiring Systems: Minimum conduit size will be ¾ . Exposed interior conduits will be electrical metallic tubing (EMT). Exposed exterior conduits will be rigid metallic conduit (RMC). Concealed conduits in offices, support areas and toilet rooms will be EMT. Motors and other vibrating equipment will be connected with flexible metal conduit (FMC), or in damp or wet locations liquid tight flexible metallic conduit (LFMC); length not to exceed 3 feet. Types of Conductors: Conductors shall be rated 600 volts. Minimum size shall be No. 12 AWG for power and No. 14 AWG minimum for control circuits. Conductors for interior use will be type THHN/THWN, thermoplastic insulated. Grounding conductors, not in raceways, will be solid bare copper, soft drawn. Design Standards: Phase conductors to be sized for instantaneous voltage drop per NEC 517.73 Voltage drop for branch circuits will not exceed three percent. Voltage drop for motor circuits will not exceed five percent. Total voltage drop for both feeder and branch circuits will not exceed five percent. Power Design Standards: Disconnects will be provided for all mechanical system and HVAC equipment as required by the National Electrical Code. The ground conductor for the power feeder shall be the same size as the phase conductor wires. The separate ground wire connections from building steel to the ground busbar shall be sized per NFPA70 - Article 250, as a minimum standard. All circuits will include a green insulated ground conductor. GENERAL CONDITIONS AND DEFINITIONS: VAMHCS: Veterans Affairs Maryland Health Care System. VA: Veterans Affairs. ICCP: Infection Control Construction Permit. ILSM: Interim Life Safety Measures: Any series of Operational Actions taken to temporarily reduce Hazards posed by Life Safety deficiencies which have been created by demolition, renovation, or construction works, and which are to remain in place and in effect for duration of Contract work. NFPA NFC: National Fire Protection Association National Fire Codes. NEC: National Electrical Code, NFPA NFC Standard 70. PROVIDE: Whenever used throughout Scope of Work, term Provide is to be understood to mean - Purchase newly manufactured; Furnish delivered to VAMC work site in protective containers; Secure from tampering or theft; and Install in accordance with Contract Scope of Work, Drawings, Specifications, and Manufacturer s Instructions all required items of administrative submittals, labor, demolition, construction, equipment items, and installation works for entirety of Contract. SUBMITTAL REQUIREMENTS: Provide submittals as indicated in the Schedule of Contractor s Submittals listed at the end of this section. Furnish to the Contracting Officer, for approval, four (4) prints of all shop drawings, product data, and catalogue cuts, of all equipment and materials furnished under this contract, before purchase, manufacturer or construction. No work can proceed without approved submittals. The Contracting Officer will examine these submittals and one copy returned to the Contractor for correction, if necessary. COTR may require additional submittals for different items not mentioned in this scope of work. Itemized below is a list of materials requiring drawings, certifications, manufacturer s literature, data brochures, Material Safety Data Sheets, technical data, and samples. These materials as noted shall be submitted to the Contracting Officer by the Contractor for approval using the appropriate form approved by the Contracting Officer. All submittals, except warranties and operating instructions, as noted below, shall be submitted not later than 7 days after receipt of the Notice to Proceed or as specified by the Contracting Officer. The Contracting Officer shall return the submittals approved or disapproved within 5 days after receipt, by VA Form 08-6225. If submittals cannot be made within 7 days after Notice to proceed or as specified by the Contracting Officer, the Contracting Officer shall be advised of the difficulty and an extension of time requested. Warranties and operating instructions are required at the completion of the Contract work. Three copies of all warranties and operating manuals shall be provided unless otherwise specified. Schedule of Contractor s Submittals: ILSM/ICRA Documentation and layout Daily/toolbox/Certified Payroll Email Document weekly Staging area Document only for approval Two week look ahead schedule Email document every two weeks List of subcontractors, Project Superintendent, & Relevant Work Site Employees Company name, address, phone Employee name, Company, trade address, phone and min 5 years experience required. Site specific OSHA Safety plan Document required pertain to site specific Utility Outages Request with at least 14 days of notice. Construction Schedule with phasing plan Progress Schedule Updated upon submittal of invoice every month. Two week look ahead schedule shall be submitted every two weeks. Submittals: Pipes, connections, anchorage, insulation, fire proofing, gypsum, ceiling systems, valves, water heater, mixing valves, expansion tanks, as-builts, water line field condition layout Electronic submission. SAFETY PRECAUTIONS The Contractor shall comply with all applicable Federal, State and local legal requirements regarding workers health and safety. The requirements include but are not limited to, those found in Federal and State Occupational Safety and Health Act (OSHA) statutes and regulations, such as applicable provisions of Title 29, Code of Federal Regulations (CFR) Parts 1910 and 1926. Contractor is solely responsible for determining the legal requirements that apply to activities and shall ensure safe and healthful working conditions for its employees. Contractor shall assume the responsibility to guard against causing of fires and/or explosions and to protect Government Property, reference NFPA 241 and 29 CFR 1926. The Contractor shall perform the work in a manner consistent with the area security and fire safety regulations especially with regard to exits and exit way access. Utility shutdowns shall not compromise security, communication or fire safety for occupants. No flammable liquids shall be stored or used in the medical center. The necessary number and appropriate types of portable fire extinguishers are required per National Fire Protection Association (NFPA) 10 and NFPA 241. The Contractor shall receive from the COTR a permit for all cutting, welding, and soldering. All permits shall be prominently displayed during all construction. All necessary precautions shall be taken by the contractor to prevent accidental activation of any existing smoke detectors or sprinkler heads. HAZARDOUS MATERIAL REPORTING: The Contractor shall maintain hazardous material inventories and material safety data sheets (MSDS) for all hazardous materials (as defined in CFR 1910.120, 40 CFR s 355, 370, & 372) to be stored and used on this Medical Center. Hazardous materials must be inventoried when received and at the completion of the project. The amounts used shall be maintained for the project duration, and for the calendar year (ending 31 December). Hazardous Materials Inventories, Material Safety Data Sheets and material quantities used shall be submitted to the Contracting Officer for approval. In the event of a spill, Contractor shall immediately notify the Contracting Officer s Technical Representative (extension 5062) as well as the Contracting Officer. The Contractor shall be solely responsible for the expense of any cleanup of such spill, and the cleanup shall be in accordance with the applicable provisions of 40 CFR Part 761. ENVIRONMENTAL PROTECTION: In order to provide for abatement and control of all environmentally hazardous materials arising from demolition and/or construction activities, the Contractor shall comply with all applicable environmentally hazardous material control and abatement and all applicable provisions of the Corps of Engineers Manual EM 385-1-1, General Safety Requirements as well as the specific requirements stated elsewhere in the Contract Documents. INTERIM LIFE SAFETY MEASURES (ILSM)/INFECTION CONTROL RISK ASSESMENT(ICRA) In work that is within Patient Care area and areas impacted by life safety plan will require the contractor to provide detail definition of the work activity within the area to acquire permit for ICRA and ILSM from VA Medical Center. No work will be permitted without such measures. INFECTION CONTROL RISK ASSESMENT(ICRA) In work that is within Patient Care area and areas impacted infectious and air borne particles the contractor to provide detail definition of the work activity/layout and procedures/equipment and machinery being used within the area to acquire permit for ICRA from VA Medical Center. No work will be permitted without such measures. Contractor will be required to provide means of controlling dust/other infectious control measure as required by the VA epidemiologist/nurse manager. APPLICABLE DRAWINGS/SPECIFICATION Design Specifications 100% Construction Documents May 26, 2023 LOCH RAVEN REPLACE BUILDING 4 BOILERS DESIGN VAMHCS MEDICAL CENTER, BALTIMORE, MD 21201 100% CONSTRUCTION DOCUMENTS - MAY 26, 2023 END OF SCOPE OF WORK
- Web Link
-
SAM.gov Permalink
(https://sam.gov/opp/24debe26b7964a7ca6002b5c70b47a6a/view)
- Record
- SN06867516-F 20231027/231025230100 (samdaily.us)
- Source
-
SAM.gov Link to This Notice
(may not be valid after Archive Date)
| FSG Index | This Issue's Index | Today's SAM Daily Index Page |