Questions and Answers.pdf
PDF 92 KB Posted
- Attached to
- Bldg. 221 HVAC Repairs Federal contract opportunity
- Solicitation number
- 36C25724Q0860
About this file
This document contains a set of Questions and Answers related to a federal contract opportunity for HVAC repairs and modifications to a Long-Term Care Facility. The key details are:
The contractor will be responsible for providing labor, materials, and equipment for the repairs and modifications to the facility's outside air units and hydronic system, as outlined in the Scope of Work (SOW). The contract requires the contractor to submit design ideas for approval, with the VA providing the existing drawings. The contractor must address humidity, install dehumidification capabilities, service existing humidifiers, and install isolation valves to allow for floor-level control. The contract requires 3 changes of MERV 10 air filters per unit, copper drain lines, and 3rd party Testing and Balancing. Patient operations will continue during the work, with coordination required for ICRA procedures. No performance or payment bonds are required, as this is not a construction project. The solicitation number is 36C25724Q0860, issued by the Department of Veterans Affairs, Veterans Health Administration, Veterans Integrated Service Network 17.
View the file
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| M-404.pdf | ||
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| M-204.pdf | ||
| Bldg. 221 CLC A Wing Attic Units.pdf | ||
| S02 36C25724Q0860.pdf | ||
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Text version
Q: Does the contractor need to assume providing sealed drawings to the VA by a Professional Engineer (PE) to perform this work?
A: No. Design through the contractor and approved by the VA. As-built drawings for any changes to the existing drawings are required to be updated and provided with the close out documents.
Q: Will there be design prints for this project?
A: As Builds drawings shall be provided with the close out documents of the ensuing contract.
Q: Can as-built drawing be made available?
A: Yes. Drawings were provided and uploaded with the solicitation within SAM.gov.
Q: Will all existing chill water penetrations be made from the top of the chill water pipe?
A: These are not chill water lines. The proper verbiage is hydronic lines. The top of the main line is preferred first option. If this cannot be accomplished due to existing structures, a side penetration will be submitted to the COR for approval.
Q: Who is the preferred DDC/ BAS Controls contractor?
A: Johnson Control Metasys is the current BAS.
Q: Will the existing humidifiers need to be replaced or cleaned and reinstalled?
A: Existing humidifiers will be required to be service and operational with the new units.
Q: Will new isolation valves be needed to separate the first and second floors?
A: Yes. The objective is to be able to isolate each floor of each building.
Q: Are the DOAS WSHPs connected to a building management system, automated controls or are they pre-programmed stand-alone units?
A: Yes. It is on a BAS.
Q: If connected to a building automation system – what is the brand?
A: Johnson Controls Metasys
Q: If connected to building automation system – what is the connection type? (bacnet, modbus, etc.)
A: Bacnet
Q: The SOW 1.E states “Design shall address humidity and units shall be equipped with dehumidification sequence.”, however the site visit revealed that currently, there are humidifiers installed. Do we want to install humidifiers or dehumidifiers?
A: Yes, The units shall have Dehumidification capabilities. Existing Humidifiers will be required to be serviced and operational
Q: Should the contractor provide filters or cartridge replacements for up to 12 months after installation?
A: Contract reads to Provide three (3) changes of Merv 10 Air Filters per unit for the designed filter rack
Q: What is the desired humidity setpoint range?
A: 55% RH +/- 2%
Q: SOW states all drains should be made of copper, does this apply to drains from the reheat coils, secondary drain lines and humidifiers/dehumidifiers?
A: Yes, all drains shall be of copper from the eighteen DOA Units. No drain is required for Pre Heat or Reheat coils. Humidifiers/dehumidifiers are required to be reworked in copper to allow unit to be raised.
Q: For units that do not currently have a drain line connected to auxiliary drain pan or where there is no route to adequately install a gravity drain, will a condensate pump suffice?
A: The units are to be raised so this should not be an issue. Existing conditions reflect adequate fall but any unforeseen condition shall be brought to the COR’s attention.
Q: The fresh air duct re-design should most likely be engineered.
A: No. It needs to be sized correctly!
Q: Should the VA provide engineering or should the contractor?
A: The Contractor shall submit design ideas to the COR for approval.
Q: Should contractor make the designs based upon best judgement and experience?
A: Yes. The contractor shall submit design ideas to the COR for approval.
Q: Will patients be removed and operations halted in each wing while the contractor is working in that wing?
A: Patients will not be moved. All work will be coordinated with the COR and supplemental cooling or heating will be VA provided and Contractor Installed. If Patient safety is a concern we will follow the ICRA and if the patients require relocation VA personnel will coordinate this effort.
Q: What are the ICRA requirements?
A: TBD. Each phase of work will require an ICRA determined by the VA’s Infection Prevention Team.
Q: How many isolation valves does the VA require to be installed in addition to what's currently in the scope of work?
A: Additional valves will be recommended and identified in the Method of Procedure by the mechanical contractor. All proposals that are an addition to the scope of work will be sent to the
COR.
Q: If isolation valves are required, where are they to be installed?
A: Isolation valves shall be installed in an accessible location. All locations shall be determined through best practices and approved by the COR.
Q: Does the project require performance and payment bonds?
A: This is not required since this is not a construction project.
Q: Is 3rd party TAB required?
A: Yes, for all units that are being replaced the hydronics and air shall have a TAB conducted.
Q: Are there any rooms that require a specific number of air exchanges? If so, what rooms and what number of ACH?
A: Drawing were provided.
Q: Will the contractor be required to have a site supervisor onsite at all times?
A: The contractor shall have a competent person from each trade with Quality Control.
Q: If catwalks are required, what are the locations and how much is required?
A: Four exhaust fans that an estimated 15 ft from the existing catwalk. Eight (8) exhaust fans are 6 feet from existing catwalk. Twelve (12) Outside Air Unit filter racks that are estimated 6 ft exact distance to be TBD once the filter rack is installed.
Q: Can the VA provide model numbers and as-builts so bidders can quote the correct replacement units?
A: This listing has been uploaded into the solicitation’s attachment section as, “Bldg. 221 CLC A Wing Attic Units”.
Q: How many units require re-piping hydronic lines?
A: All Units in Mechanical rooms and in the Attic space of Bldg.’s 221A, B, C and D Reference the provided drawings.
Q: An engineered plan is requested for adding additional OA louvers instead of the design provided in the SOW. This would require additional time and visits to quote. Is an engineered plan required?
A: The Contractor shall submit design ideas to the COR for approval. The contractor shall reference
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