19AU9026Q0007_QandA.pdf
PDF 142 KB Posted
- Attached to
- Replacement of 73 Fan Coil Units
- Solicitation number
- 19AU9026Q0007
- Issued by
-
Department of State
About this file
This file is a Questions and Answers document for federal contract opportunity 19AU9026Q0007, titled "Replacement 73 Fan Coil Units." The document addresses eight technical clarifications regarding the scope of work and existing site conditions.
The project requires contractors to deliver and install 73 fan coil units (FCUs) along with all associated pipes, valves, actuators, and room controllers. Key scope items include drainage of the hydronic cooling system and replacement of all valves as part of the base offer; no conditional or inspection-based replacements are permitted. Work must be performed Monday through Friday, 08:00–17:00, with extended hours available only upon approval by the Contracting Officer's Representative (COR). The contractor must absorb all costs related to workforce constraints, supervisory requirements, and security regulations within their pricing; additional claims will not be accepted except for client-ordered interruptions. The existing cooling equipment is an air-cooled packaged chiller manufactured by AIRSTACK/MULTISTACK, model ASP 75T with two modules, providing 150 tons total cooling capacity. The hydronic system uses R-134a refrigerant with glycol concentration at 35–45%. No system drawings or documentation are available to support the replacement work, requiring contractors to conduct site assessments and design accordingly.
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Other files
| File | Type | Posted |
|---|---|---|
| 19AU9026Q0007_SF1449.pdf | ||
| 19AU9026Q0007_Attachment_A_SOW.pdf | ||
| 19AU9026Q0007_Coverltr.pdf | ||
| 19AU9026Q0007_SoliDoc.pdf |
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Text version
19AU9026Q0007_Q&A
Q&A and technical clarifications Project number: 19AU9026Q0007
Name: Replacement 73 Fan Coil Units
Q1 – Hydronic System Drainage Question: Is the hydronic system planned to be drained and prepared prior to FCU replacement works?
Answer: Drainage of the cooling system to the required extent is part of the project’s Scope of Work (SOW) and must be included in the offer.
Q2 – Valve Replacement Scope Question: Should valve replacement occur only where necessary after inspection, or is replacement of all valves expected?
Answer: Delivery and installation of FCUs including all pipes, valves, actuators, and room controllers — replacement of all valves is part of the project’s SOW.
Q3 – Working Hours and Site Access Restrictions Question: Are there restrictions regarding working hours, workforce size, simultaneous work areas, or evening/extended hours?
Answer: All work must be performed Monday through Friday, 08:00–17:00. Extended hours may be approved by the COR. Worker count depends on supervisory availability and security regulations. Any complications must be included in pricing; no additional claims accepted except for client-ordered interruptions (see page 7 of SOW).
Q4 – Manufacturer of Existing Cooling Equipment Question: Please provide manufacturer of the existing chiller / outdoor cooling equipment.
Answer: The existing cooling equipment is manufactured by AIRSTACK / MULTISTACK.
Q5 – Model Designation Question: Please provide model designation of the equipment.
Answer: The equipment is an air‑cooled packaged chiller, model ASP 75T (2 modules).
Q6 – Available Technical Data Question: Please provide any available technical data sheets or equipment schedules.
Answer: Refrigerant type: R‑134a; Cooling capacity: 2 × 75 tons.
19AU9026Q0007_Q&A
Q7 – Glycol Concentration Question: Please confirm glycol concentration within the existing system.
Answer: Glycol concentration is 35–45%.
Q8 – Drawings or Documentation Question: Please provide any available system drawings or documentation.
Answer: No drawings or documentation available (N/A).
| Q1 – Hydronic System Drainage |
| Q2 – Valve Replacement Scope |
| Q3 – Working Hours and Site Access Restrictions |
| Q4 – Manufacturer of Existing Cooling Equipment |
| Q5 – Model Designation |
| Q6 – Available Technical Data |
| Q7 – Glycol Concentration |
| Q8 – Drawings or Documentation |
File details come from the government source that posted it. Updated .