Questions and Answers_30JUN21.pdf

HJZH 21‐4003, Repair Piping & HVAC B750 – Questions

1. Is the 365 day project duration inclusive of both design and construction activities?

ANSWER: Yes.

2. Is there any ventilation system (ductwork distribution, general exhaust systems, vehicle exhaust systems, etc.) scope of work for this project besides providing proper venting of the new high efficiency gas-fired boilers?

ANSWER: No.

3. Is there any plumbing system (water heaters, distribution piping, compressed air, oil/water separator, etc.) scope of work?

4. Is there any fire suppression scope of work?

5. Is there any telecommunication scope of work?

6. If there is telecommunication scope of work, will the telecom design efforts require the design team to have a Registered Communications Distribution Designer (RCDD)?

7. Is a fire and life safety analysis of the building required to be provided?

8. Is a NEC electrical classification plan of the facility required to be provided?

9. Is it anticipated that there will be any structural, civil, or landscaping scopes of work?

10. Is there any refrigerant system scope of work?

11. Due to the limited architectural scope of work, can architectural design be omitted if adequate shop drawings of new exterior doors and any wall/roof pipe penetrations are provided via shop drawing by the applicable contractor for Government review?

12. Due to limited structural scope of work, can structural design be omitted if adequate shop drawings of any new concrete pads or equipment supports are provided via shop drawing by the applicable contractor for Government review?

13. Does seismic restraint design need to be provided along with the design submittals or will it be acceptable to have this package provided after design is complete as a deferred submittal to the Government?

ANSWER: Provide the seismic restraint design with the design submittals.

14. Is a hazardous materials survey report available for the facility?

15. To accommodate NEC classification requirements, will all spark producing equipment within the mechanical room be required to be kept at least 18” above finished floor since mechanical room and adjacent maintenance bay spaces only have a single door separation?

16. Can the mechanical room ventilation fan assembly and combustion air opening remain for re-use or should these items be replaced with new?

ANSWER: Replace with new.

17. Is specification section 15011 1.4 applicable to new work only and will not require any existing to remain equipment to have appropriate access provided, new premium motors installed, or starters/VFDs replaced if existing equipment is currently not in compliance with this section?

ANSWER: New equipment only.

18. Specification section 15011 1.4 B. 8. makes reference to a Design After Award section, however, no such section appears present within the solicitation documents. Is this section available, and if not, will items typically indicated in that section such as project specifications, design analysis, calculations, DQC checklists, ECIs, or ITRs be required to be provided at any of the design milestones (35%, 65%, 95%, 100%)?

ANSWER: Design After Award Section has been eliminated. 1.4.B.8 refers specifically to TAB and operational testing requirements, these items can be submitted separately from the design package but prior to implementation. Items specific to the design, i.e. calculations, analysis, equipment schedules, sequence of operation, etc.) should be provided at the 65% design milestone.

19. Specification section 15011 1.4 B. 8. makes reference to commissioning activities. What systems are required to be commissioned, just those being installed under this project or all HVAC items including existing equipment?

Please define the extent of required commissioning efforts.

ANSWER: Those being installed under this project.

20. Is specification section 15011 1.5 intended to be applicable to new hydronic heating piping only and not existing plumbing systems?

ANSWER: Maybe, depends on the design of systems and what is altered/impacted.

21. Specification 15011 1.6 B makes reference to testing plumbing, natural gas, and ventilation systems. Will existing plumbing, gas piping, and ventilation systems outside the project scope be required to be tested and/or re-balanced?

ANSWER: Maybe, depends on the design and if the systems are altered/impacted this may require testing or re-balancing.

22. Will design review by 673 CES be done via formal Dr. Checks format for comment/response tracking?

ANSWER: See SOW Sections 3.2 REVISED JBER CAD_STANDARD and 3.5 AF Form 66.

23. Several rooms along the building exterior are heated via unit heaters with attached ductwork distributing heated air to these rooms. Does project scope include removal/replacement of connected ductwork and grilles/diffusers or just replacement of the heating device with reattachment to existing ductwork?

ANSWER: The Latter just replacement of the heating device with reattachment to existing ductwork as required.

24. Solicitation specifically references UFC 1-200-01, which in turn references several other UFCs that are not specifically listed in the project solicitation documents. Will UFC 1-200-02 High Performance and Sustainable Building Requirements, which is referenced by UFC 1-200-01, be enforced for this project?

25. Is scope of work for LED lighting replacement limited to the mechanical room only?

26. Will the new HVAC DDC system need to incorporate controls for all HVAC systems including existing ventilation equipment, or will it be limited to new hydronic heating system only?

ANSWER: Incorporate controls for all HVAC systems including existing ventilation equipment of the building.

27. If existing heating system is only taken offline during warmer summer months of

2022 (May through September), would temporary building heat still be required?

ANSWER: In the months of June through August night temps average above 50’s F but September nights do drop into the 40’s and sometimes below. Plan to provide temporary building heat as needed during construction.

28. If ACM, LBP, or other hazardous materials are detected, will any remediation design be provided by the Government and/or a contract modification be provided to address this unplanned for expense?

ANSWER: The result will be a Contract Modification. If ACM or LBP is detected in areas of repair, contact 673 CONS Contracting Officer and provide testing report of sample(s) from an Alaska Certified testing facility. Whenever remediation is required, it shall be limited to the minimum area necessary to satisfactorily complete the associated repair.

29. As-builts denote the facility originally had a radiant floor heating system. During the site walk-thru, there was no evidence that a radiant floor system was still in use. Can the Government clarify if an existing radiant system is currently installed at the facility, and if so, does this system need to be incorporated into the remodel design or can it be removed from use and abandoned in-place since reuse of this system would be difficult to provide?

ANSWER: Does not need to be incorporated.

30. Will BIM or 3D modeling be required for this project?

ANSWER: BIM and or 3D modeling not required. All design drawings shall be in accordance to section 3.2 REVISED JBER CAD_STANDARD.

31. Are there any preferred make/model of boilers, pumps, tanks, or other equipment that the Government would prefer be provided?

ANSWER:No.

32. Remodel efforts may add additional electrical demand beyond current building usage due to addition of hydronic pumps and multiple boilers. Is it acceptable to assume the existing electrical service is of adequate size and capacity to support the intended remodel efforts and that upgrading the electrical service will not be required?

33. Can glycol heating fluid be run through the new boilers or is it preferred to have water circulate through the boilers with a heat exchanger to convert from water to glycol for routing glycol throughout the building’s distribution system?

ANSWER: Glycol heating fluid is to be run through the new boilers.

34. Drawing A-100 calls out “thermostats, new lighting Emitting Diode (LED) lighting, drywall repair, and 2 new 45 minute fire rated double doors / frames with self-closing devices throughout the whole building”. Please clarify if this work is to accomplished in the boiler room only and the heating system portion, including thermostats should be the entire building?

ANSWER: The As-Build Drawings sheet A-100 was amended and will be provided with the SOW Amendment 001. The Sheet A-100 Project Description will match the Section 1.1 in SOW Amendment 001. The Thermostats are throughout the whole building and the new lighting Emitting Diode (LED) lighting, drywall repair, and 2 new 45 minute fire rated double doors / frames with self-closing devices are in the boiler room.

35. Does any of the equipment have explosion-proof requirements?

36. Can the steam piping that is located in walls or enclosed ceilings be left in place or does the cavities need to be opened up and repaired for the decommissioned system?

ANSWER: Remove/Demolish all existing steam piping and any walls, cavities, ceilings will need to be repaired.

37. Will new piping, control wiring, and/or electrical be allowed to be surface mounted in the built-out rooms? (offices, storage areas)

38. Are there any requirements to modify/change the domestic hot water systems?

39. Scope of work states there is no ACM of LBP detected in areas of repair, if ACM or LBP is detected is that considered a change in site condition that will constitute a modification to address?

ANSWER: The result will be a Contract Modification. If ACM or LBP is detected in areas of repair, contact 673 CONS Contracting Officer and provide testing report of sample(s) from an Alaska Certified testing facility. Whenever remediation is required, it shall be limited to the minimum area necessary to satisfactorily complete the associated repair.

40. The current steam system is connected to the roof drains, when this building is replaced with a hydronic system it will leave nothing for ice thaw on these drains.

Is electric heat trace required to be installed as apart of this project?

ANSWER: Yes. Any system that is affected by the demo of the existing system has to be addressed within the project.

41. Is the rooftop unit functional?

ANSWER: Yes

42. The SOW calls to install a new heating system but does not discuss ventilation.

Is ventilation apart of this project?

ANSWER: It may, this is a Design Build (D-B) Project, and if the new heating system requires that the existing ventilation / make-up air be improved it should be a part of the design.

43. Are there CAD files of the building that can be made available?

ANSWER: Yes, after award all CAD files on building 750 that 673CE has will be made available upon request.

44. Are there CAD files of the project that put in the gas boilers and makeup air units that can be made available?

ANSWER: Not sure, but after award all CAD files on building 750 that 673CE has will be made available upon request.

45. Is the intent for the vehicle exhaust system and Makeup air units/system to remain or be replaced?

ANSWER: It may, this is a Design Build (D-B) Project, and if the new heating system requires that the existing ventilation / make-up air be improved it should be a part of the design.

46. SOW states “new light emitting diode (LED) lighting, drywall repair, and 2 new 45 minute fire rated double doors/frames with self closing devices throughout the whole building in accordance with (IAW) ) NFPE 80.”

ANSWER: See the SOW was updated please refer to SOW AMENDMENT 001 (date 22JUN2021). IF you have not received copy contact TSGT GONZALES.

47. Is the intent for all lighting in the building to be replaced?

ANSWER: No, only for the boiler room (see SOW Amendment 001).

48. What is the extent of the drywall repair and where are the 2 new double doors to be placed.

ANSWER: The new double door is to be located on the exterior (north) wall of the boiler room, you can tell us the best placement for access. Drywall repair should be at level 4 finish, painted with primer and two top coats, color, texture, finish to match existing. The boiler room north that will have the new double door should be repaired corner to corner and any other walls or areas shall be limited to the minimum area necessary to satisfactorily complete the associated repair.

49. Is every existing door to get new self-closing devices?

ANSWER: No, only the new double door for the boiler room.

50. Attachment 12 is for telecom, is there telecom work within the scope?

ANSWER: Maybe, there may be a need for telecom work to support the new Automated Logic Controls (ALC) DDC.