Atch 13 - Building 502 Question Responses.pdf

DEPARTMENT OF THE AIR FORCE

436th Contracting Squadron (AMC)

639 Atlantic Street Dover AFB, Delaware 19902-5639

22 July 2020

MEMORANDUM FOR ALL OFFERORS

FROM: 436 CONS/PKA

639 Atlantic St Dover AFB, DE 19902

SUBJECT: FA449720R0032, Project No. 1055999, Repair B502 HVAC, Elevator, and Roof (B502), Solicitation Questions and Answers

1. Can drawings, as-built or other, be provided?

Government Response: Yes, As-Builts will be provided

2. Can photos of the electrical panel, elevator shaft interior - particularly the shaft walls, the elevator equipment & room be provided?

Government Response: Photos of electrical panels have been provided

3. Please provide a copy of the teleconference attendees.

Government Response: Meeting minutes will be posted on Beta.SAM.gov

4. Can data on the roofing manufacturer / installer be provided?

Government Response: No

5. Confirm that it is the intent to re-use the existing elevator shaft structure, doors & frames.

Government Response: DOR will be responsible for investigation and determination to re-use parts. SOW it to provide entirely new elevator.

6. Will occupants utilize an existing stairway while the elevator is being replaced?

Government Response: Yes

7. Is there a maximum time in which the elevator can be inoperable?

Government Response: Contractor is to minimize elevator down time as much as possible.

8. Can data on the current elevator & installer be provided?

Government Response: No.

9. It appears the USAF is purchasing Trane Chiller...is this correct?

Government Response: USAF has a J&A to sole source Trane Chillers as specified in the SOW. Contractor is to furnish and install Chiller.

10. Also states "All repairs to be completed in house"...is this correct?

Government Response: Not sure where reference is coming from, please provide more information

11. Can any components be retained from the existing elevator? a. If so, which components?

Government Response: DOR will be responsible for investigation and determination to re-use parts. SOW it to provide entirely new elevator.

12. Which controller manufacturers are acceptable for this project?

Government Response: The Government cannot specify a name brand but controls must be able to integrate with Trane front end.

13. Are all UFC requirements to be followed when designing and installing this project?

14. Which ASEM A17.1 code edition will be followed?

Government Response: 2016

15. In reference to 1.5.4(f), What does this mean?

• a. Should an inventory of wear & tear parts be provided for 20 years?

Government Response: Yes

• Is a 20-year warranty required?

Government Response: Provide standard manufacturer’s warranty

• If it is stating a 20-year life cycle is expected, what assurances are required to ensure the elevator will operate for 20 years?

Government Response: Contractor is only to provide 20 years’ worth of wear and tear parts.

16. What door entrance finished are required?

Government Response: Match existing, brushed stainless.

17. What cab material is required?

Government Response: Brushed Stainless

18. What fixture material is required?

19. Please provide complete building as-built drawings to include any and all renovation projects that have impacted our scope.

Government Response: As-builts have been provided

20. Are we responsible for any start-up of the existing HVAC since it has been sitting for some time?

Government Response: HVAC has not been sitting, several leaks were found that will require the system only to the tower to be shut off, drained, corrected, and refilled/restarted.

21. Please confirm if we need acquire any FAA permits for this project.

Government Response: DAFB will submit a temporary construction waiver to the FAA, contractor is responsible for providing any information on cranes and lifts as necessary along with lengths of time equipment is required.

22. Do we need to provide a temporary elevator for the workers in the control tower during construction?

23. Can existing electrical conduit be reused if it is in good condition?

Government Response: DOR will be responsible for investigation and determination to re-use parts. SOW it to provide entirely new elevator.

24. Please confirm the off-loading or lay down areas available for our use.

Government Response: A laydown area can be coordinated

25. Is an onsite office required for this contract?

26. Is a full-time superintendent required for this contract?

27. Is a full-time dedicated quality control manager required for this contract?

28. Is a SSHO required for this contract?

29. Can any of the above positions be dual-hatted or part time to this effort?

30. For the elevator replacement, are we replacing the doors and frames as well?

Government Response: DOR will be responsible for investigation and determination to re-use parts. SOW it to provide entirely new elevator.

31. Do the elevator buttons in the hallway need to be replaced too?

Government Response: DOR will be responsible for investigation and determination to re-use parts. SOW it to provide entirely new elevator.

32. Is there an existing glycol tank in the facility that needs to be filled as well?

Government Response: There is no Glycol feed system for the HVAC loop serving the tower.

33. With this being a design-build contract with no site visit, please advise how differing site conditions will be defined.

Government Response: Differing site conditions will be addressed in accordance with FAR 52.236-2 “Differing Site Conditions”.

34. Also, please advise on how differing site conditions will be handled contractually. Since we were unable to visit the site and were only able to rely on pictures provided by DAFB, how will DAFB handle conditions that we could not visually inspect?

Government Response: Differing site conditions will be addressed in accordance with FAR 52.236-2 “Differing Site Conditions”.

35. Is there a current warranty in place on the roof?

36. Who installed the roofing system, we may need to use them to keep the warranty?

Government Response: Roof Manufacturer is Imetco.

37. Who installed the existing elevator?

Government Response: Unknown

38. Can DAFB supply additional information regarding the issues they are having with the current elevator? We would want to know if they believe the issue is with elevator hardware only or if it could be an issue with the building itself such as settling. With us unable to visit the site, we are not able to determine that ourselves visually.

Government Response: The Government cannot confirm the issues caused by the existing elevator. Price the project to replace the entire elevator.

39. Can you please provide the original shop drawings for the current elevator?

Government Response: As-Builts will be provided

40. Is HVAC commissioning required for this contract? If so, what systems are being commissioned?

(i.e. only the new chiller or all existing HVAC systems?)

Government Response: Only the new chiller and associated controls are to be commissioned

41. Is the elevator required to be a hole or holeless type per UFC 3-490-06?

Government Response: Holeless

42. On page 4 of the SOW, paragraph 3.1, with no site visit, will DAFB guarantee the accuracy of the as-built drawings for this contract?

Government Response: DAFB cannot guarantee the accuracy of as-builts

43. The table of deliverables and design requirement paragraphs do not match for the time frames for each deliverable. The design period in the Table of Deliverables is 135 days and the design requirement paragraphs equals 160 days. Which is correct?

Government Response: Provide design in accordance with Table of Deliverables

44. Is any of this project considered a secure area that would require special badging and/or escorts?

Government Response: Escorts will be required in the facility

45. Is the use of the DAFB recycle center a requirement for this project?

Government Response: Yes, for recyclable materials.

46. If the new chiller has a larger footprint than the existing, will we be responsible to replace the concrete pad that the existing chiller sits on? Or can the exiting pad be enlarged? Does the pad require bollards for protection?

Government Response: Chiller is to sit on existing concrete pad as is, no bollards are required.

47. Please provide dimensions on the existing chiller pad.

Government Response: 102’’x126’’x3’’

48. Will there need to be the required 12” clearance around all sides of the new chiller on the concrete pad?

49. Since no walk through is possible, would the government consider, offering more photos of the worksite?

Government Response: Photos of the Electrical panels have been provided

50. Some more detailed pictures of the mechanical systems would be great.

Government Response: Mechanical systems affected by this project has been provided

51. Is the existing chiller connected to an ice tank?

52. Is there currently glycol within the system? If so, what type of glycol is it?

Government Response: Glycol is food grade

53. Confirm that no modifications to the existing pumping systems are required.

Government Response: confirmed, no modification to pumps are required.

54. Are any of the valves/gauges currently servicing the existing chiller required to be replaced along with controls?

55. Please provide the as-built drawings for the HVAC controls.

Government Response: As-builts will be provided

56. Are engineered drawings required for SOW item 1.5.3, “HVAC Tower”, these appear to be maintenance items.

Government Response: Drawings will not be required.

57. Is the existing heating water system equipped with glycol? If so, what type?

Government Response: Glycol is food grade

58. Is UFC 3-490-06 required to be followed for the elevator upgrades?

59. Does an existing pit sump exist? If not, is one required to be added?

Government Response: Yes, and existing pit sump exists.

60. Does an existing dedicated elevator machine room HVAC System currently exist? If not, is one required to be added?

Government Response: The HVAC system that serves the elevator shaft is located on Level 4

61. Is the existing elevator on emergency power? If no, is the new elevator required to be supported with emergency power?

Government Response: Elevator is on Emergency power, per sheet 501 of as-builts

62. Is the elevator required to comply with UFC 3-490-06 as it relates to fire alarm and recall?

63. Are upgrades to the fire alarm system within the elevator lobbies anticipated

64. Please provide more pictures of the existing elevator especially inside the car.

Government Response: Pictures have been provided.

65. Please clarify what level of finishes are required for inside the car.

66. What is the existing elevator system type (i.e. Overhead electric traction, hydraulic, etc.)?

Government Response: MRL, Motor is located at top of hoist way.

67. Does the scope include any renovations to elevator Lobbies, hoistway, or Elevator Machine Room?

Government Response: No, only as needed to fit new elevator system.

68. Are the existing pit lighting and pit ladder Code compliant?

69. If the building is sprinklered, is there an existing sump pump and pit in the elevator pit?

Government Response: Yes, there is an existing sump

70. Is the elevator currently a fire service access elevator? If not, current codes may require this.

According to the IBC, sprinklers should not be installed in Elevator Machine Rooms, hoistways, and control spaces if the elevator is fire service access.

Government Response: Elevator is not for fire service.

71. Is the govmt. aware that there is about a 12 to 16 week lead time for the elevator?

72. Elevator machine room does not contain modules for elevator shunt-trip and fire hat indicator. Does the existing elevator comply with the requirements of UFC 3-490-06 for the fire alarm and elevator recall?

Government Response: Existing fire alarm system contains shunt trip for elevator.

New elevator shall comply with all applicable standards for FA.

73. Is the existing elevator machine room lighting level compliant with UFC 3-490-06? Confirm no upgrade to elevator machine room lighting is required.

Government Response: No upgrade to lighting required

74. Are existing elevator pit sump pump and convenience receptacles compliant with UFC 3-490-06?

Confirm no upgrade to receptacle installation and circuiting.

Government Response: No upgrade required

75. Does the Elevator structural systems need structural integrity analysis?

Government Response: Contractor is to determine if existing system is sufficient and in good shape for new elevator.

76. How close are looking to matching the roof color?

Government Response: The Government can provide information on existing color to match.

77. It appears the chilled water system is utilizing glycol – please confirm.

Government Response: Confirmed

78. The existing chilled water system does not appear to have a loaded tank (or at least we did not observe this). What is the proposed location for the new tank?

Government Response: Load tank is to be an option on the chiller

79. Why is heat trace required if the system has glycol? What exactly should be heat traced?

Government Response: freeze protection is to be an option on the chiller per the serial # listed in the SOW

80. For HVAC Tower – what system is to be filled with glycol? Heating or cooling?

Government Response: Heating

81. Please confirm that we will have a lay down area and storage space close to the elevator shaft.

Government Response: A laydown area can be coordinated

82. How difficult is entry into the building?

Government Response: Escorts will be required

83. Does the elevator enter into any restricted areas?

84. Please confirm the overhead and pit depth dimensions are correct per the As-Built drawings provided.

Government Response: Confirmed.

85. Are there any cell phone restrictions? Can the workers use their phones in the building?

Government Response: Cell phones are not restricted in the facility, only in the cab itself.

86. Will we have a contractor's badge to access the base or will the work vehicles need to be searched daily?

Government Response: Contractors will be issued badges, but all vehicles will be required to enter through the contractor gate daily.