S05 RFI Answers Amendment 0002.docx
DOCX document 54 KB Posted
- Solicitation number
- 36C24226B0027
About this file
This file is a Request for Information (RFI) Answers Amendment document for Solicitation 36C24226B0027, addressing clarifications on the scope of work for improving the OR and SPD HVAC systems at James J. Peters VAMC in Bronx, New York (Project 526-23-133). The document provides VA responses to four sets of RFI questions submitted by potential bidders regarding equipment specifications, drawings, and installation requirements.
Key clarifications include: (1) The new Air Handling Unit (AHU) to be installed in Mechanical Room 2E-11 will be furnished as a complete package unit meeting specified performance and material requirements, with marked-up drawing M121 provided showing ductwork and components to be replaced; (2) Two exhaust fans are required—EF-20 (15 HP, 480V 3-phase, 23,832 CFM main exhaust fan) and WF-12 (1/3 HP, 120V single-phase, 2,880 CFM wall fan controlled by local room thermostat), with the previous reference to EF-21 clarified as a typographical error; (3) Epoxy flooring system specifications have been provided, with equals permitted; (4) Refurbishment of existing AHU-16 has been eliminated as AHU-16 will be fully replaced; (5) Duct-mounted smoke detectors are to be replaced in kind with one detector in the mechanical room, requiring JCI contractor for wiring, installation, and controls work; and (6) No transformers appear to be required for furnishing on this project, pending contractor confirmation of drawings. The VA emphasizes that all specifications, marked-up drawings, and equipment details have been provided to ensure consistent bidder information.
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Solicitation 36C24226B0027 Amendment 0002 – Project no. 526-23-133 Improve OR & SPD HVAC
RFI QUESTIONS & ANSWERS
JAMES J. PETERS VAMC BRONX, NEW YORK
RFI #1 VA RESPONSE
1) The new scope of work directs the contractor to furnish and install a new AHU unit in Mechanical Room 2E-11, please provide make/model and basis of design for the new AHU along with additional components that would be needed beyond the original scope to complete the installation. An updated drawing and equipment schedule sheet is requested to ensure all bidders are receiving consistent information.
There is no basis of design for this AHU. The original design called for certain components of AHU-16 to be upgraded/replaced while other sections remained existing. The SOW deviates from the design to provide replacements for the existing components with the same performance and material specifications. Specifications for these components have been provided in a PDF. It is preferred that since all components are now new, a new AHU is built as a package unit to meet the requirements. A marked-up PDF of M121 is also provided showing the ductwork and other components to be replaced highlighted in yellow. Valves and accessories, such as isolation valves, control valves, steam traps, and other components will also be replaced to match standard details included in the specifications PDF.
2) The new scope of work directs the contractor to furnish and install two (2) new exhaust fans (EF-21 and EF-20). Please provide make/model and basis of design for the new exhaust fans. Please provide what controls need to be replaced and the testing standard. Additionally, please advise if there was a typo and the exhaust fans are EF-41* and EF-20 (EF-21 being the typo). An updating drawing and equipment schedule sheet is requested to ensure all bidders are receiving consistent information.
EF 20 is correct. This is the main exhaust fan for the 2E area. It is a 15 HP fan running at 480V 3PH at 23,832 CFM. The other fan is a typo, it should be WF-12, which is a wall fan for ventilation of the mechanical in the summer. It is a 1/3 HP fan running at 120V 1PH at 2,880 cfm. This wall fan should be wired to a local room thermostat to turn on when temperatures exceed setpoint setting.
3) There is no specification provided for resinous flooring. Please confirm equals may be used for the epoxy flooring system.
Specifications have been provided.
RFI #2 VA RESPONSE
(1) Please provide a revised drawing M-121 showing layout of room with new equipment and showing ductwork to be replaced.
A marked-up PDF has been provided.
(2) Please verify that refurbishment of AHU-16 is now eliminated, that work is still referenced in the SOW.
Refurbishment of AHU-16 is no longer required since AHU-16 will be fully replaced.
(3) Please provide all specification relating to new work, including flooring.
New spec section has been provided for resinous flooring.
RFI #3 VA RESPONSE
(1) In Amendment #1, the revised SOW instructs contractor to furnish and install new duct-mounted smoke detectors. Please provide an updated drawing to account for: (1) Quantity; (2) Location; (3) Line diagrams for conduit, wiring, and (4) Controls functionality.
Duct smoke detectors are to be replaced in kind. As per the as built drawings there is only one in the mechanical room. The contractor must hire JCI for wiring, installation, and controls as they are responsible for servicing our equipment.
RFI #4 VA RESPONSE
(1) The electrical scope of work states that all transformers are to contain copper wiring. Please advise if there are any transformers to be furnished on this project.
There does not appear to be transformers to be furnished on this project but contractor to confirm the drawings.
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