Questions and Answers_W91QF4-25-B-A014 DPW Steam Boiler.pdf
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- Solicitation number
- W91QF4_25_B_A014
About this file
This document is a Questions and Answers (Q&A) file for the B1140 Steam Boiler Replacement project, solicitation number W91QF4-25-B-A014. The Q&A addresses critical technical details for a boiler replacement project, including requirements for insulation, flue work, gas line modifications, and temporary systems. Key points include: the temporary boiler will remain operational during construction, with a two-week notice required for system swap-over; pro-press copper fittings are permitted on make-up water piping but not steam piping; and the project involves installing new boilers with new flue work while maintaining the existing path.
Additional notable requirements include completing Lockout/Tagout (LOTO) procedures, coordinating hot work permits with the government and fire department, and managing construction dumpsters in the dock area. The government will provide as-built drawings for electrical and piping systems. The project has specific technical specifications, such as insulating condensate/steam and heating hot water piping according to UFC 3-420-01 and UFGS 23 07 00 standards. Contractors will need to coordinate closely with the government, including providing advance notice for power and system swaps, and managing work around existing infrastructure like outside air louvers and fire detection systems.
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Questions and Answers
B1140_Steam Boiler Replacement
W91QF4-25-B-A014
1. Is this project tax exempt? If so, will a tax exemption certification be produced?
Answer: Yes, upon receiving the award we will send the Tax Exempt Certificate
2. Are there any hazardous materials on the mechanical piping and or hangers?
Answer: No known hazardous materials in the DB.
3. Does the exhaust flue from the existing boiler remain in place?
Answer: No, the new boilers will require new flue work. Path shall remain the same, but each boiler will require a new flue.
4. Is the contractor required to cover up any roof penetrations?
Answer: Correct, any work requiring roof penetrations or repairing old penetrations will need repaired.
5. Will the contractor be required to move the natural gas line?
Answer: Yes, the natural gas piping will need slight modifications to accommodate the new boilers.
6. What are the insulation requirements for the steam and condensate?
Answer: All condensate/steam piping shall be insulated in accordance with the UFC 3-420-01 and UFGS 23 07 00, section 3.2 paragraph 3.2.3 Table 2.
7. What are the insulation requirements for the heating hot water piping?
Answer: All heating hot water piping shall be insulated in accordance with the UFC 3- 420-01 and UFGS 23 07 00, section 3.2 paragraph 3.2.3 Table 2.
8. Will the temp boiler remain in place during the construction process?
Answer: Yes, the temporary boiler will remain operational through the construction process. To the greatest extent possible, the new boilers systems shall be installed and the time to swap over from the temporary boiler to the new system shall be minimized. A two-week notice shall be provided for this swap over. Coordination with the Government and American Boiler (Owners of the temporary boiler) will be required.
9. Will the contractor be required to complete the LOTO utilities in the mechanical room?
Answer: Yes, LOTO procedures will be required by the contractor.
10. Will a horizontal boiler selection with the same salient characteristics per the scope of work be acceptable?
Answer: Yes, as long as the submitted boiler meets the given specifications, it will be acceptable.
11. Will the contractor be required to provide temporary power while the electrical panels are being swapped out?
Answer: No temporary power is required. It is requested to minimize the downtime during the electrical swap over. Complete as much as possible prior to the power swap. The contractor shall coordinate this outage with the Government two weeks in advance.
12. Will the government provide any additional as-built drawings or piping diagrams for the boiler system?
Answer: Applicable asbuilts were provided in the solicitation. If additional drawings are needed, please provide specific requests.
13. Will the government provide any additional as-built drawings for electrical diagrams?
Answer: Yes, asbuilts provided along with these responses.
14. Are any of the outside air louvers in the scope of work?
Answer: No, space has existing outside air louvers in place.
15. Is the contractor required to provide a new garage door system for the mechanical room?
Answer: No, the garage door repair is outside the scope of this project. The door will need removed to get the equipment in and out.
16. Will the contractor be required to replace any unit heaters in the mechanical room?
Answer: No.
17. Can the contractor utilize pro-press copper fittings in this scope of work?
Answer: Propress fittings may be used on the make up water piping, but not on the steam piping.
18. Will contractors be allowed to do any hot work inside and or outside of the mechanical room?
Answer: Yes, the contractor will need to coordinate the hot permit with the Government and fire dept, to place system in test mode.
19. Are there any smoke detectors within the project workspace?
Answer: There are two heat detectors in the space and the building is fully sprinkled.
The fire alarm systems can be placed in test mode when needed.
20. Will the contractor be allowed to provide construction dumpsters within the compound?
Answer: Yes, they can have them in the dock area outside the boiler plant. The contractor will need to coordinate the drop off and pick up of dumpsters with the Government.
21. Are Electrical schematic, or one-line drawings available for this project and if so, will they be posted?
Answer: Electrical drawings provided with this response document.
File details come from the government source that posted it. Updated .