80KSC019R0011_-_Amend_003_-_CO_Signed.pdf

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods:

(a) By completing items 8 and 15, and returning or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE

RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

E. IMPORTANT: Contractor is not is required to sign this document and return copies to the issuing office.

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

1. CONTRACT ID CODE

2. AMENDMENT/MODIFICATION NUMBER 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQUISITION NUMBER 5. PROJECT NUMBER (If applicable)

7. ADMINISTERED BY (If other than Item 6) CODE

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

FACILITY CODE

9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers is extended. is not extended.

12. ACCOUNTING AND APPROPRIATION DATA (If required) copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NUMBER AS DESCRIBED IN ITEM 14.

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER

NUMBER IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15C. DATE SIGNED

15A. NAME AND TITLE OF SIGNER (Type or print)

16C. DATE SIGNED

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

PAGE OF PAGES

6. ISSUED BY CODE

8. NAME AND ADDRESS OF CONTRACTOR (Number, street, county, State and ZIP Code) (X)

CODE

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

Previous edition unusable

00003

OP-CS

Randall A. Gumke, Contracting Officer

The purpose of Amendment 00003 is to:

A. Provide Government answers to potential bidder's questions, see attached 25Feb19 PPI Log.

B. All other terms and conditions remain unchanged.

John F. Kennedy Space Center, NASA Procurement Office, OP-CS-A Kennedy space Center, FL 32899

Same as Block 6

80KSC019R0011

1 10

See Block 16C

02/25/2019

Drawing MP-502 'Flow Tube Detail' The drawing 'flow tube detail' shows a typical venturi and spool assembly. This detail is not necesssarilly correct for circuits that require a venturi larger than 8" nominal. BIF suggests that the attached schedule be added to the drawing as either part of note 'E' or as a seperate schedule on the drawing to detail the appropriate venturi size for each circuit.

See attached Amendment No. 002.

Drawing MP-502 'Flow Tube Detail' In Accordance with the BIF sugessted sizing of the venturis the only "Flow Tube

Detail' that will require a reducing section is the nominal 14" flow tube. Please add this to note 'E' on drawing MP-502. All other venturi flow tube details will be nominal size, (i.e.) 8" , 10" 12" diameter without need for the inlet reducing section.

See attached Amendment No. 002.

Correct per MP-502 Rev. B, only 14" Flow Tube will require reducer for 12" venturi if BIF is selected. Per flag note H, selections other than the basis of design, BIF, may require modification of the venturi sizes which may require additional reducer sections.

Drawing MP-602 table for item tag numbers A211264 through A211270

Schedule for item tag numbers A211264 through A211270 show incorrect venturi sizes for the circuits to be tested. BIF

Reccomends revising the venturi descriptions in the note associated with each tag number to match the 'Venturi Size' column on the attached table.

See attached Amendment No. 002.

Will the ML be parked in the bay during this construction phase and interfere with lifting the new AHU into place on level 10?

If the ML is in the high bay, will the elevators be available for bringing up the

AHU to level 10in sections? Please indicae size ( length, width, and height) along with the weight capacity of elevator.

The ML will be parked in HB-3 during the Phase 1 construction period and cleared during Phase 2 of the construction effort. Allowances for Level 10 work are per

Sheet V-003. Additional Information: Elevators 15 and 16 access the 10th floor of F tower. Their internal dimensions are 116” long, 92” wide and 104” tall. Door openings are 96” tall x 60” wide. Rated load of the elevator is 8,000lbs.

Drawing MP-503 The data table in the upper Left hand section of the Drawing titled "Outer

Diameter" The "B" Column on this data table should reflect the same values as the

"Duct ID" value from the Venturi Schedule

The table labeled "Outer Diameter" on MP-503 is for the flex duct adapter/nipple detail above the table and the letter dimensions are shown on that detail. These are the ML interface adapters at the ends of the ECS duct.

Mech Dwg M609 & M610 sheets 87- 88

Chiller Flow switches A211794, A211795, A211796, A211797, A211798, A211799. Controls Drawing I-605

These switches do not show on the PLC I/O lists, but are on the I-Drawings, are they picked up by the chiller suppliers panel for interlocking purposes, with data coming to

SCADA over comms? Who is supplying these switches?

The flow switches are supplied by and internal to the chillers even though they are shown on the outside of the chillers on mechanical drawing sheets. These switches are interlocked within the chiller control panel to ensure water/glycol flow during chiller operation.

Mech Dwg M610 sheet 88 Water Meter

Chemical Feed System, A211906

This flow meter does not show on the PLC

I/O lists, should it be included in the

Controls package and be controlled/monitored in SCADA?

The flow meter is part of the controls supplied with the basis of design chemical feed system, and is not part of the PLC control system.

Drawings I-636 to I-638 EMI cable glands for multiple cable entries on drawings I-636 to I-638 do not appear to be available from the named vendors for the outside diameters of the cables specified.

The Contractor may use EMI cable glands for the smaller size from Kemtron or an approved equivalent. Any selected cable gland will still require review and approval through the submittal process.

Amend

No.

Solicitation No. 80KSC019R0011 Project Title: VAB HB-3 ECS

No.

Reference

(Section Paragraph/Page, Drawing

Sheet/Page)

QUESTION GOVERNMENT RESPONSE

SECTION L, PARA L.19(b)(1), Page 74 Where are Teaming Agreements to be placed in the proposal and how is page count impacted if Teaming Agreements are included?

The Government does not need a copy of the teaming agreement. Just ensure a brief statement is included that addresses the requirement in the second paragraph of L.19

(b)(1), identifying the scope of work being performed by each.

SECTION 02 82 16.00 20

Will a new asbestos and/or hazardous coatings survey be required and/or provided? OSHA rules require a survey to be performed within one year of any demolition or abatement, and the

Environmental division at KSC has been enforcing this recently, frequently after contract award.

Yes. A new survey will be required and the contractor will be responsible for providing it.

SECTION 26 05 00.00 40 3.2.1 (Page

12)

3.2.1 calls for strut frames to be stainless in all locations. Confirm that this is correct for indoor locations too?

Design intent was for stainless steel strut for equipment frames in all locations. 002

E-106 Note D

New MV Cable from VFI-748 on 10th FL to VFI-721 first floor outdoors. What is the measurement of this cable?

The estimated length used when performing calculations was approximately 550 feet (+/- 50 feet) 002

SECTION 01 11 00 1.5: 3-D Modeling

(Page 7)

Is there an existing BIM model available from NASA OR do we need to start from scratch?

The selected contractor will need to create their

BIM/coordination model(s) from scratch. 002

SECTION 01 11 00 1.5: 3-D Modeling

(Page 7)

Are there existing shop drawings or CAD files of the VAB?

The CAD files for the design in the solicitation will be available to the awarded bidder. Original CAD files of the

VAB itself do not exist.

SECTION 01 11 00 1.5: 3-D Modeling

(Page 7)

What is the “Native” model in (Navisworks or CREO)?

The native model file format shall be Navisworks or CREO or be any software that can export to Naviswork and CREO without loss of data.

Drawing S-501A

Statement on ladder details states (Ladder by delegated specialty enigineer.) Who is this entity, and are we to purchase ladder from them and install it?

The Contractor's team would design and fabricate the ladder as the delegated engineer. The appropriate steel fabricator would be required to have a stair and ladder specialty engineer that can design the ladder or subcontract that effort out.

MP-105, Note C. , 43 52 00, 3.3.4 Joints.

Note C on MP-105 states "all steam pipe and fittings to be welded, Spec section 43

52 00 3.3.4, second sentence states for 1-inch & smaller shall be threaded. Please confirm 1-inch and smaller can be threaded?

See attached Amendment No. 002. All diameter steam piping to be welded.

43 52 00 3.3.3 Condensate Return and

Fittings, MP-105, Note C. , 43 52 00,

3.3.4 Joints.

Note C on MP-105 states "all steam pipe and fittings to be welded, what type of welded joint is required i.e. socket weld or but weld?

Provide butt weld joints for steam pipe.

MP-002 Humidifier chamber option MP-

105, 601, 702, 703, 708. Solicitation

CLIN 0002 Additive 1- Five (5)

Additional ECS Purge Air Humidifiers

(Ref. Drawing 79K40474 Sheet V-003 &

MP-002)

MP-002VAB ECS Purge air circuit

Requirements shows 5 each circuits to have optional humidification. MP-105 shows piping going to all 6 humidification chambers regardless of options and or baseline. Is the contractor to install the piping shown on MP-105 up to the option humidifiers and cap for future. If so, is the contractor only to price the humidifier and associated chamber transitions as the option? If so, does the contractor have to install a flanged spool piece to accommodate future humidifier/chamber installation?

For the optional humidifiers the contractor needs to install the tee and small spool with a blanking flange for the optional steam piping as part of the base bid and exclude all the downstream piping, valves, solenoids, traps associated with each optional humidifier. The option pricing should include the optional humidifiers, chambers, and all piping and valves downstream of that tee/flange.

23 05 15 Common Piping For HVAC 3.1

Piping Applications, 40 53 00 3.3.3

Condensate Pipe and Fittings, 40 05 15

Common Piping for ECS 2.1.3 Stainless

Steel Piping

23 05 15 Common Piping For HVAC 3.1

Piping Applications states to use type L copper for ECS condensate. 40 53 00 3.3.3

Condensate Pipe and Fittings states to use steel pipe with malleable iron fittings, 40

05 15 Common Piping for ECS 2.1.3

Stainless Steel Piping states to use stainless steel pipe for cooling chamber condensate , steam condensate and ECS waste piping.

Please clarify which type of material is to be used for cooling chamber condensate, steam condensate and ECS waste piping.

Division 23 is for house HVAC condensate only.

Stainless steel piping shall be used for cooling chamber condensate, steam condensate, and ECS waste piping.

MP-502 Note J

Note J states contractor to provide flex duct for each of the 7 flow tubes of sufficient to allow flow tubes to reach above the ECS

ML interfaces during testing What is the material of construction for these flex ducts?

The flexible duct shall be of construction that is rated to a burst pressure that is 4X the dead head pressure of the selected blowers. Contractor shall consult with the blower manufacturer to determine maximum blower pressure output.

M-303

M-303 shows connection to existing

CHWS and CHWR piping. During the walk down it noted that these connections are to an existing blind flanges with no isolation valves. How is this to be accomplished? Drained by facility maintenance? Scheduled outage with draining of the system? If so by contractor how much volume of chilled water be required to be collected and at what location will this be drained from.

Scheduled outage (coordinate with KSC Facilities), drained by Contractor. Contractor to determine low point drain location to minimize draining of chilled water.

40 05 15 Common Piping for ECS, 2.1.3

SST Pipe for Cooling Chamber

Condensate, Steam Condensate, 43 52 00

3.3.2 Steam Pipe & Fittings

40 05 15 Common Piping for ECS, 2.1.3

SST Pipe for Cooling Chamber Condensate calls for stainless steel pipe & fittings, Steam Condensate. 43 52 00 3.3.2 Steam

Pipe & Fittings calls for black iron pipe & fittings. Which type of piping is required for the condensate from the chambers to the condensate pumps?

Stainless steel is required for cooling chamber condensate and steam condensate.

MP-510 Duct Support Detail

MP-510 shows Detail ECS Duct Support

(Type 2). Are these the supports shown on

MP-301 Detail EB qty of 4 each? If not please identify quantities and locations for installation.

Correct, this is the intended location and quantity of this style of support.

79K40474, Sheet E-102, Note H

Note H, fourth sentence states coordinate procurement of VFD units with mechanical contractor. Is the intent for the electrical contractor to procure VFD's per division

26?

It is the responsibility of the prime contractor. The VFDs are included as a Division 26 specification, but should have the correct/specified controls interface module and be coordinated with the specific motors and equipment to be installed which is provided under mechanical specification divisions.

PD-101 Note A&F

Note F indicates for the 4-inch underground waste pipe to be removed as shown with the ends of the pipe that are to remain to be capped, is there existing equipment and or concrete over this piping. What is the depth of this pipe that is to be removed? Is this a hand dig only area?

At the location to be capped near the building there is no concrete but existing gas lines (GHe and GN2) in the area would require hand digging in this location. For the cap on the manhole side there is existing concrete over the pipe in the area of the manhole as well as closer to the building exterior, but it would be possible to locate and cap the waste line in the area between existing concrete as shown on CD-101 (labeled

‘SW’). The existing gas lines will be rerouted in this area so coordination will be required. This may not be a hand dig area but this will depend upon coordination with the gas line re-route. Please see CD-101 for location of concrete and existing utilities in the area. The gas line re-route sheets are currently being developed.

Drawing MP-502 Note "E" indicates there are seven different Portable venturi test rigs included in the project. The Flow

Tube Detail is for a nominal 8" venturi .

Are there any flow parameters available for the individual temporary flow meters such as: Maximum Flow Rate, Minimum Flow

Rate, operating Pressure, Operating

Temperature and Process Relative

Humidity

The flow parameters for each type of portable flow tube are intended to simultaneously test all 6 east or west header circuits listed on MP-002. The max/min consolidated parameters for each flow tube type are as follows.

1. 8” 60-105lb/min 45-110 F 2.5psig

2. 10” 90-175lb/min 45-100 F 3.75psig

3. 10” 190-250lb/min 45-100 F 2.5psig

4. 12” 90-250lb/min 45-110 F 2.5psig

5. 14” 190-250lb/min 45-110 F 2.5psig

Drawing MP-502 The general "Flow

Tube Detail" in the center of the drawing shows a nominal 8" flow tube

Does each of the non 8" flow tubes in note

"E" have the same general reducer on the inle end as the general drawing?

See attached Amendment No. 002. Per MP-502 Rev. B, only

14" Flow Tube will require reducer for 12" venturi if BIF is selected. Per flag note H, selections other than the basis of design, BIF, may require modification of the venturi sizes which may require additional reducer sections.

Drawing MP-502 The general "Flow

Tube Detail" has a 12" long reducing section on the inlet end

What is the angle of the reducer is so we can determine the ID at the inlet for each of the different line sizes?

The reducer is intended to be the same general shape as the reducer on MP-501, 15deg. The required inlet size of the flow tube should match the flex duct adapter detail dimensions on sheet MP-503 for nominal 14, 12, 10, 8 inch referencing dimension "C" in the table below that detail.

Drawing MP-502

Does the 146 3/4" overall length of the

Flow Tube Detail hold for all different line sizes listed in Note "E" on the MP-502

Drawing?

Note E is intended to identify the inlet size for the flow tube.

The requirement is to provide 10x duct diameters of straight length prior to the venturi. So if the venturi size is increased for any of the max flows listed in the previous response then the length would need to be changed to keep the 10x duct diameter requirement.

Drawing MP-503

The data table in the upper Left hand section of the Drawing titled "Outer

Diameter" seems to reflect data for the

'Venturi Detail' below it but there are no indicated dimensions "A" "B" and "C" on the venturi detail?

The table labeled "Outer Diameter" on MP-503 is for the flex duct adapter/nipple detail above the table and the letter dimensions are shown on that detail. These are the ML interface adapters at the ends of the ECS duct.

Drawing MP-503

The data table in the upper Left hand section of the Drawing titled "Outer

Diameter" The "B" Column on this data table should reflect the same values as the

"Duct ID" value from the Venturi Schedule

The table dimensions are referring to the flex adapter detail above not the venturi spool detail which is a reference detail for the contract required vendor spool piece.

Drawing MP-502

Note "E" shows need for one each 14"

Nominal Venturi Assembly but there are no installed venturis in nominal 14" lines. Is this correct?

The sizes in this note are referring to the ML interface duct diameters listed in the ECS circuit table, not the required venturi size. The reducer shown in the detail will need to match this size on the inlet of the flow tube. One flow tube

(Flag Note E, sub-note d) as an example is required to interface with the 14" diameter flex hose that interfaces with the CS/AFT circuit that has a 14" ML interface transition at the end of that duct.

Spec section 42 65 00, Page 5, Par 1.4-1

Windloads

Cooling Towers Spec section 42 65 00, Page 5, Par 1.4-1 Windloads: This spec section calls for 156 mph wind load compliance. Note # 2 on the cooling tower schedule calls for the tower construction to meet the ultimate wind speed listed on

Plan page S-001 which does match the 156 mph requirement However Spec section 42

65 00, Page 7, 2.5.1.2 Construction: calls for 100psf wind load compliance which greatly exceeds 156 mph. Which is required?

See attached Amendment No. 002.

Spec section 42 65 00, page 9, 2.5.1.9

Paragraph 2 and 3

Cooling Tower Spec section 42 65 00, page

9, 2.5.1.9 Paragraph 2 and 3: This section allows for either belt or geardrive to drive the cooling tower fan. The basis of design tower utilizes geardrive as standard. Is belt drive acceptable or is geardrive required?

Geardrive is required.

spec section 42 65 00, Page 10, 2.5.1.9/8

Cooling Tower spec section 42 65 00, Page

10, 2.5.1.9/8: If in fact it is determined that geardirve is required are “2 oil level switched per cell” meaning 2 switches per each gearbox actually required? Is this for redundancy as this is not recommended by the specified cooling tower manufacturer !?

2 oil level switches are required for redundancy.

Specification Section 26 23 00 Low

Voltage Switchgear / Paragraph 1.5.1 a.

calls for switchgear to be suitable for 50 deg C ambient

Per IEEE standards this gear will be rated for 40 deg C and must be derated for higher ambient temperature. Please confirm the new LV switchgear is to be 40 deg C rated or if 50 deg C ambient is applicable.

Rating gear at 40 degrees C is acceptable.

Drawing E-001 & Specification Section 2

6 13 16 Switchgear (5KV) Drawing E-001 general note 11 indicates GE is basis of design. Specification section 26 13 16

Paragraph 2.1.7.3 calls for Schneider

Electric Ion meter (Square D) to be installed for metering quipment. Please confirm this requirement

Square D ION meter is required for communication with the

Kennedy Complex Control System (KCCS).

Drawing E-001 & Specification Section

26 23 00 Low Voltage Switchgear

Drawing E-001 general note 11 indicates

GE is bases of design. Specification section

26 23 00 Paragraph 2.1.10.3 calls for

Schneider Electric Ion meter (Square D) to be installed for metering equipment. GE uses Entellisys as its integrated monitoring, protection and control platform and cannot provide the specified meter. Please advise

Square D ION meter is required for communication with the

Kennedy Complex Control System (KCCS).

Specification Section 26 23 00 Low

Voltage e Switchgear Paragraph 2.1.2.1 d. calls for bases, frames and channels of the switchgear enclosure to be 304 SS.

Manufacturers have informed us this spec section cannot be met. Furthermore, the switchgear is being installed in a custom weather-tight corrosion resistant enclosure. Please confirm this requirement.

Galvanized bases, channels, and frames may be galvanized steel.

Yes this requirement is for custom exterior enclosure.

Specifications 26 13 16 & 26 23 00

On previous NASA projects of this type, the services of an independent control specialists/integrator has been required.

This scope included integration of KCCS, SCADA, SIT plan, etc. along with review of documents, field testing, verification, etc. We have located several area of the specs that mention “specialist” but have found no requirement for the services of an independent control specialist/integrator.

Please advise if this is a requirement for this project and if so, please provide the required spec section.

Contractor is to provide services of independent Citect

SCADA Systems Integrator. Systems Integrator qualifications are a required submittal under SD-07 – Certifications and

Paragraph 1.8 of each specification section “Citect SCADA

SYSTEMS INTEGRATOR QUALIFICATIONS” provides specific qualifications and submittal requirements. Services required are included in each specification section.

Specification 42 65 00 - Section 2.1.1.

Specification 42 65 00 - Section 2.1.1.

Calls for CTI Standard 201 Certification, which will not be possible as currently designed and scheduled. The Cooling tower ambient WB is scheduled as 85. As a result of the 85WB as scheduled, the

Cooling Tower Approach Temperature is less than 5 degrees, and thus will not be

CTI certified. Approach Temperature =

WB -LWT. In this case design approach =

3.3 degrees. Is CTI certification on the towers required? The ASHRAE 0.4%

Evaporation day for Kennedy Space Center is 80.7WB.

See attached Amendment No. 002. CTI certification is required. The associated cooling tower data will be adjusted to accommodate the CTI certifiation according to the revised

SPX report.

Drawing MP-503 "Venturi Detail"

This drawing does not indicate the type of material to be used for the pipe/duct sections that house the various venturis. In past projects, BIF has supplied stainless steel spool sections to house the venturis since the stainless steel spools will be better suited for welding the indicated pressure taps on and to hold a propoer diameter after the welding process have been completed. Please confirm materials to be used for the spool sections housing the venturi in the detail. I am attaching an example of a simular spool section BIF provided in the past to this request drawing number D248315.

The intent is that the vendor spool will incorporate taps and has wall thickness sufficient to support the two static pressure taps indicated on the controls schematic upstream of the venturi. Basis of design is to match aluminum adjacent 5052 /

6061 duct construction, but the contractor may elect to provide stainless steel spool sections as suggested from BIF.

Drawing MP-503 "Venturi Detail"

Should the spool sections housing the venturi have flanges on the upstream end and downstream end that match the flanges on the typical "Single Wall ECS Duct and

Flange" detail drawing MP-501?

The venturi spool flanges that mate to the duct do not need to match the exact ECS duct flange pattern/size as shown on the referenced duct table, but can match the duct to valve transition detail (grid C7-B7) on the same sheet if class 150# flanges are used on both sides of the spool piece. The ECS duct at that interface will have to have flanges matching the spool piece.

Drawing MP-503 "Venturi Detail"

Its typical for BIF to utilize flanges dimensionally equivelent to class 150# steel flanges for the center holding flanges that hold the venturi in the spools. Is this acceptable for this application?

Yes, this is acceptable for this application.

Drawing MP--502

Change the drawing of the portable flow meter to reference the attached table for venturi and spool configuration

See attached Amendment No. 002.

Drawing MP-502 The general "Flow

Tube Detail" in the center of the drawing shows a nominal 8" flow tube.

Table attached uses data from Nelson engineers for the individual circuits that will be tested with each of the follosing portable assembly tag numbers form addendum 1 & 2 A211264, A211265, A211266, A211267, A211268, A211269 &

A211270 Change the drawing of the portable venturi to show the tube size and configuration as per attached table

See attached Amendment No. 002. Ensure that the length of the upstream section from the venturi meets 10x duct diameter requirement.

Drawing MP-602 table for tags in question 2 aove does not include proper venturi sizes

Table attached uses data from Nelson engineers for the individual circuits that will be tested with each of the follosing portable assembly tag numbers form addendum 1 & 2 A211264, A211265, A211266, A211267, A211268, A211269 &

A211270 Change the schedule to show the venturi size and configuration as per attached table

See Amendment No. #002.

Section 01 11 00 "SUMMARY OF

WORK", page 4 states: "The piping of the fluid system will be designed, fabricated, and tested in accordance with

ASME B31.3 for Normal Fluid Service at the respective design pressure for each line." And, page 6 states: "The ECS control system will perform automated control of chillers, blowers, cooling chambers, heater chambers, boilers and humidifiers, actuated valves, and dampers to provide conditioned air to the launch vehicle.

Please confirm all valves must conform to

ASME B31.3

All valves must conform to B31.3. Where a valve is not listed in Table 326.1, it shall be considered compliant if the valve burst pressure exceeds the maximum system pressure by 4:1 or greater for bodies other than cast iron or ductile iron.

Ductile iron shall have a 5:1 ratio.

Section 23 05 15 "COMMON PIPING

FOR HVAC", PART 3 EXECUTION,

paragraph 3.2, states: "Submit certificates for pipes, valves and specialties showing conformance with test requirements as contained in the reference standards contained in this section. Certificates shall verify Surface Resistance, Shear and

Tensile Strengths, Temperature Ratings, Bending Tests, Flattening Tests and

Transverse Guided Weld Bend

Tests...Fabricate and install piping systems in accordance with ASME

B31.3, MSS SP-69, and AWS WHB-

2.9."

Please confirm all valves must conform to

ASME B31.3

All valves must conform to B31.3. Where a valve is not listed in Table 326.1, it shall be considered compliant if the valve burst pressure exceeds the maximum system pressure by 4:1 or greater for bodies other than cast iron or ductile iron.

Ductile iron shall have a 5:1 ratio.

Section 40 05 15 "COMMON PIPING

FOR ECS", PART 3 EXECUTION,

paragraph 3.1, states: "Test reports for

Hydrostatic Tests, and, Valve-Operating

Tests shall be provided by the Contractor, in compliance with referenced standards contained within this section. Hydrostatic testing shall be to 150 percent of the design pressure. Test duration shall be long enough to inspect every joint for leaks, but not less than one hour.

Fabricate and install piping systems in accordance with ASME B31.3, MSS SP-

69, and AWS WHB-2.9."

Please confirm all valves must conform to

ASME B31.3

All valves must conform to B31.3. Where a valve is not listed in Table 326.1, it shall be considered compliant if the valve burst pressure exceeds the maximum system pressure by 4:1 or greater for bodies other than cast iron or ductile iron.

Ductile iron shall have a 5:1 ratio.

Section 22 00 00 "PLUMBING

GENERAL PURPOSE", SECTION 1.1

REFERENCES (page 5), "ASME B31.3 and ASME B16.34 are referenced

Please confirm all valves must conform to

ASME B31.3

Division 22 plumbing system is not required to be ASME

B31.3 compliant. Valves in this system are not required to be

B16.34 compliant. 002

79K40474, MP-503, Specification

Section 43 00 00

MP-503 Single Wall Duct Expansion Joint

Detail (Vendor Supplied) detail shows inner expansion joints for the following duct sizes 8”, 10”, and 12”. The only vendor supplied expansion joints are for the blowers as shown in the schedules on MP-

602 and the schematics on MP-701. Please provide quantities and locations where the

8”. 10”, & 12” apply. Note: On similar installations a inner expansion joint and a outer expansion joint was required

The ECS duct layout as shown in the contract drawings does not require duct expansion joints based on the flexure analysis of the system as designed. If the contractor deviates from the general layout as shown or proposes support changes or additional fixed supports, a deviation/waiver shall be submitted and an updated flexure analysis will be required which may drive the addition of expansion joints to the installation at the contractor’s expense.

SUBCONTRACTOR ATTACHMENTS -

KSC-J-I,_JOFOC-Allen-Bradley-PLC-

VFD

In the request for proposal package there is a “Justification For Other Than Full Open

Competition” (JOFOC) for VFD’s supplied for this project to be manufactured by

Rockwell Automation/Allen-Bradley. The chillers are scheduled to be manufactured by Dunham Bush which are supplied with integral variable frequency drives that are not manufactured by Rockwell

Automation/Allen-Bradley. Does this

JOFOC requirement apply to the Dunham

Bush chillers?

No. The JOFOC is for the standalone VFDs (blowers, pumps, cooling tower fans, etc.) and is not intended for the Dunham

Bush chillers which have their own communication requirement to the control system.

PAGE 74, PARA (b)(1) What is the page limit for Technical

Experience Summary to be performed by major subcontractor(s)

As per Section L19.b(2) of the solicitation, the technical experience summary is limited to two pages including any summaries of any major subcontractors.

23 09 15, 2.9.2 & 2.9.3 Would Like to request Promation Electric

Actuators be considered as acceptable alternate to the Emerson F777.

Specification requires spring return for fail positions other than last, neither the 777 nor the Promation have spring units capable of operating the valves specified. Upon loss of control signal valve will fail open.

Literatiure attached.

At this time, the government cannot evaluate whether a component meets the technical requirements for equivalency of design. The contractor shall make their own assessment on feasibility of equivalency for the purpose of bidding the project. The selected contractor may submit the information at a later date for assessment.

23 05 15, 2.3.1 Would like to request Pratt Industrial Series

BF Butterfly valve be considered as acceptable alternate to the Emerson GR

Series listed in the valve schedule.

Literature attached.

At this time, the government cannot evaluate whether a component meets the technical requirements for equivalency of design. The contractor shall make their own assessment on feasibility of equivalency for the purpose of bidding the project. The selected contractor may submit the information at a later date for assessment.

Vanessa Valves referenced in the Valve

Schedule

Would like to request Solent & Pratt Triple

Offset Valves, Division of Curtiss Wright be considered as acceptable alternate to the

Emerson Vanessa listed in the valve schedule. Literature attached.

At this time, the government cannot evaluate whether a component meets the technical requirements for equivalency of design. The contractor shall make their own assessment on feasibility of equivalency for the purpose of bidding the project. The selected contractor may submit the information at a later date for assessment.