Hato Rey Capital Security Project RFIs 66-71.pdf
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- Solicitation number
- 47PC0321R0011
About this file
This document contains a request for information (RFI) responses and a related solicitation notice for construction services. The RFI responses provide clarification regarding balancing and commissioning requirements for relocated air handling units, variable air volume boxes, and variable refrigerant flow systems as part of renovations and security upgrades at the Clemente Ruiz Nazario U.S. Courthouse and Federico Degetau Federal Building in Hato Rey, Puerto Rico. The solicitation notice seeks a general contractor to provide said construction services, with a pre-proposal conference scheduled for July 26, 2021. Responses are due based on the solicitation schedule. The General Services Administration Public Buildings Service Region 2 is the contracting agency.
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RFI # Question Answer
66 "DEMO Drawings Indicates relocation of existing DDVAV's to new locations, this DDVAV's original design required Testing and Balancing of the system on two scenarios, A) Maximum Primary flow and minimum secondary flow and B) minimum primary flow with Maximum secondary flow. Is the intention of the project is to re balance and re
Commission the relocated DDVAV's to original design criteria’s? to be
Re balance and Re Commission?
Yes, all of the relocated FPBs and VAVs existing in the project that would be relocated by the demolition and new construction scope are to be re-balanced, with Contractor's re-balance report, and recommissioned, to ensure that pre-demolition airflow outputs are maintained.
67 Does the existing AHU's and HRU's providing the flow to this DDVAV to be relocated requires also to be Re-balance and Re-Commission?
No, the existing systems are not expected to be modified and shall not need commissioning, although any system where FPBs or VAV box duct runs shall need to be rebalanced to return to pre-demolition airflow quantity. Please note that the relocated VRF split system set to be relocated shall need commissioning because of VRF piping connections.
68 Please advise if PVC Schedule 80 can be used in lieu of the RTTC underground conduit.
Provide conduit materials as indicated on drawings and specifications.
69 What is the make and model of the existing (FA) panel? Existing system is Edwards Systems Technology EST3
70 In the design I do not see duct detectors, it does not have modules to supervise the tamper switches and neither the water flows
The FA design does not modify existing implementation of duct detectors or supervision of existing tamper switches and water flows.
71 How many pieces will be relocating in the base option and in the alternative 5?
Refer to FA drawings and specifications for provision of required FA devices.
Hato Rey Capital Security Project - GC RFIs
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