Questions and Answers_12905B25R0012.pdf

RFP# 12905B25R0012 - Chiller Replacement at USSL (Riverside, CA)

Amendment # 0002

Questions and Answers

1. The Drawings and specification don’t explicitly state that new equipment must be integrated into the existing BAS, while the specification outlines requirements for DDC system and mention integration with the Niagara Framework and BACnet protocols. Please clarify if integration is required in this contract? If so, please provide TEMPERATURE CONTROLS drawing which shows control scope, control diagram, sequent of operation, and other relevant information.

a. ANSWER: Please refer to “Design Analysis section 2.3.6”: The new chiller must be seamlessly connected to the existing Johnson control system with BACnet to maintain functionality and integration with the existing infrastructure. This involves ensuring the new chiller is BACnet-compatible and properly configured to communicate with the Johnson Controls system. Coordination with the control contractor and chiller manufacturer will facilitate a smooth transition, including updating system programming, testing communication protocols, and ensuring system alarms and notifications are properly integrated to maintain reliability and quick response to any issues.

Sequence of operations for Primary headered chilled water system

The primary headered chilled water system consists of two chillers in parallel, primary chilled water pumps, isolation valves, check valves, and a bypass valve. Chillers are enabled or disabled to match cooling capacity to the building load. Isolation valves are connected to the chillers to prevent water from flowing through a disabled chiller. The pumps are piped in a headered configuration and are sequenced to match the chiller’s chilled water flow requirement. The pump speed (variable speed pumps) is modulated to control the building dP to the dP setpoint . The pumps have check valves, which prevent back flow when a pump is disabled. Finally, for variable speed chilled water pumps, the system is equipped with a bypass valve that modulates open as the building flow decreases below the minimum flow setpoint.

In a variable speed configuration, the appropriate number of pumps needed to supply the required chilled water flow are turned on. The pump speeds are modulated to maintain the di erential pressure (dP) setpoint near the end of the building’s chilled water loop. As the number of pumps and the speed of the pumps change, chilled water flow through the chillers and the building changes.

With a command to start the chiller, the master chiller determines which chiller will become the lead chiller based on the configuration of Lead Lag Select and Lead/Lag Balance Delta . The lead chiller is always started first and the lag chiller is held at 0% capacity by the master chiller, forcing the lag demand limit value to 0%. If Lead Pulldown Time has been configured, the lead chiller will continue to operate alone for that specified time. After the Lead Pulldown Time timer has elapsed, and when the lead chiller is fully loaded, either all available compression is on or at the master demand limit value, then the lag start timer is initiated. When the pulldown time and lag start time have elapsed and the combined leaving chilled water temperature is more than 4°F (–2.2°C) above the setpoint, then the lag chiller is started.

The lag chiller will start with the master chiller forcing the lag chiller demand limit value to the master’s demand limit value. The master will then be responsible for water loop capacity calculation and will determine which chiller (lead or lag) will increase or decrease capacity. When the load reduces, the lag chiller will be the first chiller to unload. To accomplish this, the lead chiller setpoint is decreased by 4°F (–2.2°C) until the lag chiller unloads.

2. In the drawing M202 Demolition keynote #6 calls the existing air separator to be remail while the renovation keynote #1 calls to provide new air separator. Please confirm if the Air Separator will be replaced.

a. ANSWER: Air separator to be replaced.

3. Please clarify if the contractor will be responsible for providing temporary cooling during the construction or chiller replacement process. If so, please provide more details of temporary cooling requirements.

a. ANSWER: No. The contractor for the new construction will not have responsibility for the installation, maintenance nor eventual removal of the temporary system.

4. E200 it is calling for new 2 ½ " conduit and conductors from MDS to each new chiller unit (CH1 and CH2), on the plan page E101 note 2 it states to re-use existing underground conduit, with new conductors, then split o to the new units from the pull box. Should we assume, the existing underground conduit can fit a total of (6)300 and (2) #4 new conductors or do you want us to bid as new overhead conduit and conductors all the way back to MDS? If new, would we need to core any walls?

a. ANSWER: There are two (2) 2 ½” underground conduits to the existing pull box from the electrical room. Each conduit can accommodate four (4) 300Kcmil conductors.

Do not bid as new overhead conduits and conductors. No walls should need to be cored.

5. Is it acceptable for the bid bond to be scanned?

a. ANSWER: Yes, please scan a copy for submission via email.

6. Is it possible to get another visit to the site?

a. ANSWER: No additional site visits are planned.

7. What is the current controls/BAS system?

a. ANSWER: See response to question 1

8. Who is the current controls/BAS contractor?

a. ANSWER: The BAS is Metasys by Johnson Controls. Maintenance is not on a contract, but on per-call

9. What is the Duration / Contract Time of the project?

a. ANSWER: 230 calendar days after Notice to Proceed (NTP). Reference Solicitation

Attachment 1 SF1442 Provisions_Clauses, Section B.4 Period of Performance.

10. What is the Engineer’s estimate of the project?

a. ANSWER: Between $500,000 and $1,000,000. Reference Solicitation Attachment 1

SF1442 Provisions Clauses, Section C.10 Magnitude of Construction Project

11. Will Contractor and/or Subcontractor site employees/workers be subjected to Background Investigation/Check / Fingerprinting/Livescan / Badging?

a. ANSWER: No.

12. There is mention of ACM’s and Lead on the specifications and demolition plans but there is no Report. Is there any Abatement on this project?

a. ANSWER: The project does not have an abatement component. Disregard the specification and general note section regarding ACMs.

13. Please confirm the current temporary chiller will remain during the course of this project at no cost to the awarded contractor.

a. ANSWER: The temporary chiller is provided under a separate contract which includes disconnection and removal. It is unknown at this time if the temporary chiller will remain on site, either partially or fully, during the period of performance of a contract resulting from subject solicitation. The contractor awarded for subject solicitation is not responsible for the costs of the temporary chiller.

14. Is there any Existing Equipment Schedule available?

a. ANSWER: No, there is no existing equipment schedule available. The equipment is old, and the contractor is responsible for verifying existing conditions.

15. Is there a construction schedule?

a. ANSWER: Reference Solicitation Attachment 1 SF1442 Provisions_Clauses, section

H.2 Schedules for Construction Contracts (FAR 52.236-15) (APR 1984)

16. Confirm JCI is the control contractor, and who carries?

a. ANSWER: Johnson Controls is the on-call contractor for the BAS.

17. Can you please provide the list of qualified General Contractors and/or entities (with their contact information), bidding on this set aside project?

a. ANSWER: No such list exists because it is unknown what O erors may submit a proposal.

18. Can you please provide the list of attendees / sign-in sheet at the Job Walk?

a. A copy was publicized 6/11/2025 as solicitation amendment 0001 at https://sam.gov/contracting

19. Are we going to get more complete plans that show the air handler chill water flows?

a. ANSWER: See response to question 71 below.

20. Plans show demoing the cooling tower. From the job walk it looks like this feed a coil in the air handler in Mech rm 126. Is this piping to be capped and abandoned? Is the coil to piped to anything else or just abandoned and left in place?

a. ANSWER: The existing, unused cooling tower and all associated accessories shall be removed. Associated piping shall be capped to 12 inches above finished grade to prevent water intrusion and ensure future accessibility. Provide a blind flange with gasket and bolts at each termination point.

b. A secondary chilled water coil has been installed in place of the coil previously served by the decommissioned cooling tower. As such, the original coil is no longer in use and does not require any further piping connections.

21. Are all the pneumatic controls to be removed and upgraded to electronic with the spec’d control work?

a. ANSWER: Yes

22. Will there be only one contractor chosen for this project since the contract line item has 5 separate bid items ?

a. ANSWER: Reference Solicitation Attachment 1 SF1442 Provisions_Clauses, Section M.

The Government intends to award one contract resulting from this solicitation to the responsible o eror whose o er conforming to the solicitation is the Lowest Price Technically Acceptable (LPTA) O er.

This solicitation has one base bid item, not five separate bid items. The Government will evaluate the total price for the base bid item. The Government will evaluate pricing breakdown in Attachment 2 for price reasonableness.

23. On the contract line item, there are 5 sections to be filled out, 2 of them need further clarification.

a. What is Division 02- Existing Conditions work ? Please clarify what work this is to be related to?

i. ANSWER: No work required for Division 2

b. What is Division 32 Exterior Improvements? Is that demo existing concrete and install new concrete pads?

i. ANSWER: Yes

24. On sheet G-002 Under General Notes , general notes 1 & 2 and Asbestos and Lead Based Paint Notes items 1 thru 11. It states that the contractor is responsible for a survey, 3rd party company to survey and that the contractor is responsible for all ACM (Asbestos) and Lead Paint to be removed from site in areas worked that contain such items. Please Clarify if USDA is responsible for abatement or the General Contractor

a. ANSWER: No ACMs to be abated, refer to question 12 above

25. On sheet G-002 Under General Notes , general notes 1 & 2 and Asbestos and Lead Based Paint Notes items 1 thru 11. It states that the contractor is responsible for a survey, 3rd party company to survey and that the contractor is responsible for all ACM (Asbestos) and Lead Paint to be removed from site in areas worked that contain such items. It states that Containing Materials (ACM) are present in the project area. Refer to EMC Labs report dated 12/09/2022 for identification of paints A. This report is not found in the drawings or specifications. Please provide this report and clarify specifically what areas Lead and ACM are in our specific work areas, outdoor areas and all the interior rooms we will be working in

a. ANSWER: See question 12 above.

26. The plans call out PICV (Pressure Independent Control Valves) at all five air handlers AH-1 thru AH-5 that will replace the existing 3 way pneumatic control valves with DDC PICV valves. Please clarify what brand, make and model valve we are to use for this project since there are many manufacturers and model #’s that can be chosen.

a. ANSWER: The contractor will submit the PICV valve submittal according to the specifications for approval. BELIMO is one example of a brand that can meet specifications; however this is not a recommendation or justification for that particular brand. It is the contractor’s responsibility to meet specifications.

27. Sheet M-300 – Detail 2 cooling coil. The detail calls out to install new pipe trim at each coil starting at the ball valve. Do the existing ball valves need replacement or are we taking the POC at the existing ball valves ?

a. ANSWER: No need to replace coils shut o valves, POC at existing valves

28. Sheet M-300 – Detail 2 cooling coil. The detail calls out to install new pipe trim at each coil starting at the ball valve. The larger air handlers AHU-2 & 3 have butterfly valves and not ball valves as shut o valves. Do the existing butterfly valves need replacement or are we taking the POC at the existing butterfly valves ?

a. ANSWER: See response to question 27

29. Sheet M-300 – Detail 2 cooling coil. The detail calls out to install new pipe trim at each coil starting at the ball valve. Do we need to install all the pipe trim as listed starting at the chilled water coil ?

30. The larger air handlers AHU-2 & 3 have butterfly valves and not ball valves as shut o valves.

Do the existing butterfly valves need replacement or are we taking the POC at the existing butterfly valves ?

31. Sheet M-300 – Detail 2 cooling coil. The detail calls out to install new 2 way automatic control valves (does not state Pressure Independent Control Valve) Please clarify ?

a. ANSWER: See response to question 26

32. Sheet M-300 – Detail 2 cooling coil. The detail calls out to install new Automatic balancing valves i.e. Griswold or equal. Would this automatic balancing valve be required if we are installing new Pressure Independent Control Valves at each air handler.?

a. ANSWER: See response to question 26

33. Sheet M-300 detail 1 Chiller System Piping Diagram. The detail shows piping at both chillers and shows a balancing valve at the outlet of each chiller. Please confirm what size, brand and model of balancing valve to be installed as it is not shown. ? 13. Sheet M-300 detail 1 Chiller System Piping Diagram. The detail shows piping at both chillers and only show a butterfly valve on the supply side of the chiller and not the on the return side of the chiller.

Shouldn’t there be a butterfly valve on the supply side as well for manual isolation of the chiller ?

a. ANSWER: "Refer to Sheet M201. There is no balancing valve shown at the chiller. Per Keynote 6, two manual isolation valves are provided at the chiller supply and return for chiller maintenance. Additionally, Keynote 5 indicates that a motorized 2-way valve is installed on the chilled water return line for each chiller, serving as one of the isolation valves to prevent water from flowing through a disabled chiller.

34. Sheet M-300 detail 1 Chiller System Piping Diagram. The detail shows piping at both chillers and does not show a DDC isolation valve that will be required to isolate and individual chiller. Please clarify.

a. ANSWER: See response to question 33

35. Sheet M-300 detail 1 Chiller System Piping Diagram. Chilled water pumps CHWP -1 & 2, are just the pumps being replaced in kind and all upstream and down stream piping, strainers, check valves, flex connectors and pump trim to remain as is?

36. Sheet M-300 detail 1 Chiller System Piping Diagram. The detail shows existing air separator and expansion tanks, make up water etc.. Are these items existing and to remain in place ?

a. ANSWER: Air Separator must be replaced, all other accessories to remain as is.

37. Sheet M-300 detail 1 Chiller System Piping Diagram. The detail shows existing air separator and expansion tanks, make up water etc.. Do these items remain in place? If they are to be replaced please clarify size, manufacturer, make and model to be used.

a. ANSWER: See response to question 36. The o eror needs to meet the specifications. The government does not specify a particular make/model.

38. Sheet M-202 Mechanical Enlarged Plan renovation keyed notes item #10 calls out for a new 3” bypass automatic modulating valve for chiller minimum flow. Please clarify if this valve is currently installed with a pneumatic control valve and is being replaced in the same location ?

a. ANSWER: There is no existing valve. Provide a new 3” bypass automatic modulating valve.

39. Sheet M-202 Mechanical Enlarged Plan renovation keyed notes item #10 calls out for a new 3” bypass automatic modulating valve for chiller minimum flow. If this valve is not currently installed will this be a new 3” valve installed in the existing piping ?

a. ANSWER: See response to question 38

40. All 5 existing 3 way pneumatic valves have a Griswold circuit setter installed. When replacing the existing pneumatic 3 way valve with a 2 way PICV Pressure Independent Control Valve shouldn’t the existing Griswold flow control valve be removed ?

a. ANSWER: Yes, replace means remove existing and provide new.

41. What are the hours work can be performed M-F at the jobsite ?

a. ANSWER: Work hours are 7am to 4:30pm M-F

42. When replacing control valves at each of the air handlers, can this work be performed during normal working hours? The air handler will have air flow but no chilled water going through the coils, hence , no comfort cooling. Please clarify.

a. ANSWER: No, the air handling unit (AHU) must be shut down during the control valve replacement. Although airflow would remain, disabling chilled water flow through the coils would eliminate cooling and dehumidification, potentially leading to humidity issues within the building. Therefore, this work should not be performed during normal occupied hours.

43. When replacing control valves at each of the air handlers there will be np cooling at the air handler coils. Will this work have to be performed after hours ? Is so what days and hours ?

a. ANSWER: See response to question 41.

44. When tying in the new chillers, there are 6” tees for the temp chiller (by others) and butterfly valves with blind flanges for future chilled water supply and return lines. Is this our POC for the project ?

45. When installing new breakers for CH-1 & CH-2 the main switchgear needs to be shut down.

Can this happen during normal working hours or after hours or on a weekend ?

a. ANSWER: During standard work hours is acceptable.

46. A sequence of operation (SOO)is not shown in the specs or on the plans. Please provide a SOO of all new DDC control valves, DDC isolation valves, di erential pressure switch, pumps, chillers, chilled water and air handler temperature set points, etc..

47. Will the PICV Pressure di erential control valves be controlled by supply air temperature set point ? And is so, what temperature ?

a. ANSWER: 53F

48. Please provide as builds of the existing DDC control system showing current operation and sequence of operation.

a. ANSWER: The below information is available.

49. There are two (2) 6” pipes going underground that will be abandoned o the existing fluid cooler. Are these 6” pipes to be capped just above the ground ?

a. ANSWER: See response to question 20

50. Are there any existing issues with the existing DCC controls installed ?

a. ANSWER: No.

51. What model Jace do you have for the Johnson Controls EMS ?

52. Do you have an existing controls contractor that takes care of the HVAC system for this building and all of its DDC controls?

53. Are we to tie in the new DDC actuator valves (5 total) to the existing AHU controller in each of the fan rooms (AHU-1 thru AH-5) and ceiling area of conference room 24 ?

54. Sheet M202 , detail 3 AHU-4 note 7 shows to install a di erential switch at the piping in this unit. Are there spare inputs and outputs for tie in the of the DP switch into the DDC controller that we were told on the job walk is in the ceiling area?

a. ANSWER: Pneumatic switch to be removed for new electronic valve. New work to be controlled on the new valve. Metasys box would be using the same wiring. There are spares in the existing board.

55. Per the job walk , Sheet M202 , Conference Room 24, detail 3 AHU-4 & 5 we were not able to see the unit, piping of the controllers of each unit.

a. Are the DDC controllers in the ceiling area one per unit ?

b. Are there shut o valves in the ceiling area to isolate the unit so the DP can be installed?

c. What is the height of the air handlers in the ceiling area?

i. ANSWER: Above ceiling at 9 ft.

56. What Brand DP sensor should be provided?

a. ANSWER: Contractor needs to propose a sensor that meets the specifications.

57. Sheet S-101 detail 4 lower Tank Anchorage detail drawing shows 6 anchors to be installed and upper drawing shows 8 anchors to be installed. How many anchors are required to be installed on the Bu er Tank?

a. ANSWER: Install eight (8) anchors per plan detail.

58. Can we substitute the bu er tank manufacturer listed as long as the diameter and height are approximately the same?

a. ANSWER: Contractor just needs to propose a bu er tank that meets the specifications and submit proposed bu er tank for engineering review.

59. Is there a specification to flush and clean the new piping being installed?

a. ANSWER: Flush piping with potable water until visible grease, dirt and other contaminants are removed (visual inspection). Maintain ≥ 1.5 m/s (5 ft/s) to ensure scouring action.

60. Should there be a chemical feeder at the chiller pad area to add chemicals as required and what size?

a. ANSWER: Yes, a 5gallon Chemical Bypass Pot Feeders between supply & return header in the mechanical yard.

61. Will there be deputy inspections provided by USDA for the following:

a. Hilti Anchors depth and torque test ?

i. ANSWER: Special inspection required. Torque per manufacturer recommendations.

b. Pipe welding ?

i. ANSWER: Special inspection required.

c. Pressure testing of new piping.

i. ANSWER: Hydrostatically test all chilled water piping at 1.5 times the maximum working pressure (90 psi for 60 psi systems) for 2 hours in accordance with ASME B31.9, with no visible leaks and a maximum pressure drop of 1.5 psi (10 kPa). Isolate pumps, heat exchangers, and other sensitive equipment during testing.

62. Will there be a commissioning agent for this project provided by USDA ?

a. ANSWER: Yes, the government will designate a Contracting O icer’s Representative

(COR). Reference Solicitation Attachment 1 SF1442 Provisions_Clauses, Section G.1

63. Water balance. Does the water balance cover only the 2 chillers, 2 new chilled water pumps and 5 new pressure independent control valves?

64. There is brush and overgrowth of weeds in the chiller area. Is USDA removing these items ?

a. ANSWER: The contractor is required to clear away all overgrown weeds and vegetation in the work area.

65. Does the 700-gallon storage tank get insulated with aluminum jacketing?

66. Who will be responsible for disconnecting and removing the temporary chiller?

a. ANSWER: The temporary chiller is under a separate contract which includes disconnection and removal.

67. Who will be responsible for the long weed near the Chiller?

a. ANSWER: The contractor shall clear away all weeds and remove the vegetation in the work area.

68. Is there any vibrate isolator needed for the Chiller?

a. ANSWER: Provide vibration isolators per keynote 7 on sheet M201.

69. As per DWG # M202, For the Renovation Keyed Notes # 3, 4, 5, 9 & 10 for that valves, What is the specification and schedule for that valves and confirm which will be Manual, Electric or Pneumatic?

a. ANSWER: Keynote #3,4,5& 6 ate electric PICV.#9 clearly stated manual bypass. #10 clearly stated that 3" bypass line in the chilled water system with an automatic.

70. M201 & M300, Note 5 says these should be proportional, if they are isolation valves, they are typically two position, please clarify. These isolation valves do not appear on the piping diagram on sheet M300.

a. ANSWER: Since the system has VFD, this is an electric two position valve not proportional.

71. There are no GPM values for AHU valves. We will need this information to size the valves properly. Sizes listed may work fine but need to verify with the proper GPMs. This is especially true for pressure independent valves, as they only go by GPM for sizing and need to set at the factory. Please Advise

a. ANSWER: Per chiller replacement as-builts from 2010, AHU-3 gpm is 360. All others marked null. See AHU schedule for existing as-builts

72. This is also true for bypass valve. The idea is to maintain GPM flow thru chillers, so valve needs to be sized properly. Please Advise.

a. ANSWER: The minimum flow requirement for a chiller depends on the specific design and manufacturer's specifications, but generally falls within 40~50% of design flow.

73. Can the isolation valves be matched up to the line size of the chillers provided they are two position control?

a. ANSWER: As indicated on the plan bypasses are 6” but bypass control valve to be 3” and cannot match the pipe size.

74. Are the AHUs valve to be Pressure independent, note on sheet M300 says Pressure Indispensable? There is a significant cost increase for Pressure Independent valves so want to make sure.

a. ANSWER: Yes, See response to question 26

75. What is the manufacture, type and AIC of the existing circuit breakers?

a. ANSWER: General Electric 65K at 480V. Field verify.

76. Is there any existing bussing that will accommodate the new circuit breakers or will new bussing be required?

Highlight

a. ANSWER: Bussing is available. Field verification is required.

77. On A400 shows the placement of the new bu er tank. During the site walk we noticed there's a in ground drain about 4-6" away from the current tank pad. With the current pipe stands, bollards and the size of the new pad it won't fit in that space. Could this pad be shifted south if coordinated with the mechanical team if need be?

78. On page S-001 shows a chart for concrete for footing, slab on grade and equipment pad.

Detail 2 on S101 is actually a combo of all 3. Could the equipment pad concrete values be used for the entire pad given its the greater of all 3? If so, is the detail still acceptable to use? If not please provided a detail for this pad.

a. ANSWER: The 28-day strength values in the concrete chart are minimums.

Configure and reinforce the equipment and bu er tank pads as shown in detail 1, 2 and 4 on sheet S-101.

79. Will we need to pay for parking?

a. ANSWER: No

80. Will the shutdown of MDS need to be after hours or can it be done during regular hours?

81. After reviewing MDS, we see that there is not room available for 2- 300amp breakers that need to be installed for the 2 chillers. We would like to propose pulling new feeder wires to the existing 600amp breaker, setting a pull can outside and splitting o from there to feed each chiller.

a. ANSWER: Reference keynotes 3 and 4 on sheet E200. The section of the switchboard on the right is available for expansion. See photo

82. Is there any chemical treatment program in place for the existing chilled water system?

a. ANSWER: The existing pot feeder equipment has reached the end of its service life.

See response to question 60

83. Is the existing system required to be flushed and treated prior to installation of the new equipment? If so, will the water need to be captured, or can it be emptied in a floor drain?

a. ANSWER: See response to question 59. Test water quality (pH, chemicals, contaminants) before draining and coordinate with USDA to see if you meet their requirement to discharge the water to floor drain or not.

84. The existing exterior chemical pot feeder looks to be in poor condition. The drawings do not indicate it is to be replaced. Shall replacement be included in the scope of work?

a. ANSWER: See response to question 82

85. What is the current existing DDC system in place at the facility? i.e. Johnson Controls, Automated Logic, Alerton, etc...

86. Will any of the spaces or rooms where work will be performed be occupied during construction?

87. Are there any secure areas where work will take place? Will security escorts be required in any areas?

88. Are there any specific corrosion coating requirements for the chiller coils, cabinets, etc.?

Will copper tube aluminum fin coils su ice?

a. ANSWER: Meet specification

89. Is there an existing or new HVAC sequence of operation available on how the new system shall run? Will the new chillers lead/lag, will the new pumps lead/lag, etc...?

90. Will air balance or water balance be required for this project? If water balance is required, the drawings are missing the required GPM info for the chilled water coils at each piece of equipment.

a. ANSWER: See response to question 71

91. Will the temporary chiller stay in operation during construction?

a. ANSWER: See Question 13.

92. Is stainless steel or hot dipped galvanized fasteners or pipe supports required on the exterior?

a. ANSWER: Both are acceptable

93. Can the contractor work 4-ten-hour workdays, Monday-Thursday, 7am-5:30pm?

a. ANSWER: No. Work hours are 7am to 3:30pm M-F

94. Can di erent equipment manufactures be used in lieu of what is noted on the drawings?

i.e., York, Trane, etc.…

a. ANSWER: Carrier & Trane are examples of brands that can meet the project design requirements, but this is not an exhaustive list or recommendation for those brands.

It is the contractor’s responsibility to meet the specifications.

95. Where appropriate, can existing conduit be reused?

96. Can existing trapeze supports be used for conduit runs?

97. Should Liquidtight flexible conduit be metallic type or nonmetallic?

a. ANSWER: Non-metallic is acceptable.

98. Will P-Touch labels be acceptable for circuit breakers and newly installed equipment?

a. ANSWER: No. Plastic engraved labels shall be used.

99. Is any fireproofing required at locations where core drilling is necessary?

a. ANSWER: Not core drilling should be necessary. Fireproofing is required if penetrations are required.

100. Are standard Hilti anchors acceptable where anchoring is required?

a. ANSWER: Anchors shall be as indicated in the details HILTI KWIK BOLT TZ2 or equivalent with an approved ICC number.

101. Please confirm all unspecified materials with manufactures and Model No. should be 100% domestic.

a. ANSWER: ANSWER: For Buy American requirements, reference Solicitation Attachment 1 SF1442 Provisions Clauses, Clause I.2 BUY AMERICAN - CONSTRUCTION MATERIALS (FAR 52.225-9) (OCT 2022) and Provision 52.225-10 Notice of Buy American Requirement-Construction Materials (May 2014) https://www.acquisition.gov/far/52.225-10

102. As per DWG # M201, For the Renovation Keyed Notes # 5 for PROPORTIONAL ISOLATION VALVE, what is the specification and schedule for that valves and confirm which will be Manual, Hydraulic, Electric or Pneumatic?

a. ANSWER: See response to question 70