19R9253 Amendment 0020.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

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.

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

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

See Continuation Sheet.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 16

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

16C. DATE SIGNED

BY 10-Jul-2020

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X N4008519R9253

X 9B. DATED (SEE ITEM 11)

15-Nov-2019

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

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

Offer 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 1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram 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 telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

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

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

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

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, 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)

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

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

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

10-Jul-2020

CODE

NAVFAC MID ATLANTIC

ACQUISITION CORE

9324 VIRGINIA AVENUE

NORFOLK VA 23511-3095

N40085 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

N4008519R9253

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE (SF 30)

The following have been added by full text:

AMENDMENT 0020

Amendment 0020:

The purpose of this amendment is to provide updated specifications, an updated attachment H, an updated Price Proposal Form, and extend the nonprice, price, and small business proposal due date to 24 July 2020 1400 EST in accordance with Evaluation Notice dated 10 July 2020, for only the offerors that have been notified that they have been included in the competitive range.

This amendment hereby incorporates the following:

• Issue a revised Proposed Project Durations, Attachment H, for Factor 5 Management Approach.

• Revise the Specification for the M107 base bid (which is a complete replacement of the roof with modified bitumen). All other bid options for the standing seam metal roofing and modified bitumen repair will be removed from the specification.

• Revise the Price Proposal Form to correct the base bid CLIN and remove the roof option CLIN for M107

• Revise the Specifications for the Daylighting Requirements

• Revise Specification sections D303001 Chilled Water Systems and D304006 Chilled Water Distribution

Systems.

2.4.1. Building Design - Architecture

Add:

Daylighting requirements prescribed in applicable codes and standards must be provided by only vertical fenestration elements that include vertical fenestration (windows) placed in exterior walls, a glazed exterior wall (curtain wall or storefront), vertical fenestration placed in building clerestories, or vertical fenestration elements placed in the steep sloped roofing that include dormers or monitors (raised roof area with clerestory windows above the sloped roof) that are compatible with BEAP prescribed elements and approved by MCBCL during the design process. All fenestration must incorporate shading devices/overhangs or other means to prevent direct sunlight entering occupied spaces and work surfaces per guidelines in applicable UFCs. Skylights and solar tubes are prohibited for this project.

2.5. Workflow Process

Delete this paragraph in its entirety and replace with the following:

The new simulation training center consolidates multiple training missions, supporting a global DoD mission and providing instruction to over 100,000 DoD students annually. A variety of simulation-aided training functions will be incorporated. Therefore, multiple reconfigurable simulation rooms will be provided for maximum flexibility, as well as an auditorium for 100 persons. A single ISMT-E will be provided due to its specific requirements. In addition, administrative, briefing, server, and support spaces will also be housed in this facility.

The facility’s main entrance will be the student entrance to the south. A secondary main entrance on the west will be for administrative personnel.

There will be two separate sets of restrooms and breakrooms in the non-classified areas of the facility, one set dedicated to administrative personnel and the other dedicated to students, whether they are participating in classified or non-classified training. Students will also have access to two outside areas, pervious and impervious, for outdoor simulations. These will be accessible to the student restrooms that will include shower facilities.

PART 3A – CHAPTER 6: B30 ROOFING - P1338F II MEF SIMULATION/TRAINING CENTER

REPLACEMENT

B301090 OTHER ROOFING

Add:

NOT USED – this includes any type of horizontally oriented glazed roof opening that includes skylights and solar tubes that are prohibited for this project.

PART 3A – CHAPTER 6: D30 HVAC – P1338F II MEF SIMULATION/TRAINING CENTER

D303001 CHILLED WATER SYSTEMS: Delete this paragraph in its entirety and replace with the following:

HVAC refrigeration and air conditioning compressors must have full 5-year warranties including all parts and labor from the time of Beneficial Occupancy

Provide 2 chillers sized at 50% each to meet the block cooling load. Provide backup power.

Provide high-efficiency air-cooled chillers. Where space allows, evaporators are preferred to be Shell and Tube type due to water issues local to MCB Camp Lejeune. Evaporators must be provided with factory-installed electric freeze protection.

Provide constant primary/variable secondary pumping systems on single chiller systems greater than 60 tons and on multiple chiller systems. Primary pumping may be used only on single chiller systems less than 60 tons. Keep flow through the chiller constant; do not use variable primary flow. A buffer tank must be provided on all systems to provide thermal inertia. Provide multiple chillers for loads greater than 160 tons with each chiller sized for 50% of the total facility cooling load.

Provide rotary screw or scroll air cooled chillers. Scroll compressors are preferred for chillers smaller than 100 tons.

Screw compressors are preferred for chillers larger than 100 tons.

For unique facilities that exhibit widely variable occupant loading, multiple dissimilar sized chillers must be provided as appropriate for the low occupancy condition and fully occupied condition and must be piped to a common header. For air-cooled scroll compressors, if low load levels are required the chiller is to include hot gas bypass to allow unit operation to 10% of full load to prevent compressors from staging on and off.

The chillers must be located in an exterior equipment yard area and properly spaced from each other and other equipment away from building perimeter. The air-cooled chiller(s) must be located outside on a 6-inch thick reinforced concrete housekeeping pad. Provide heat tape to ensure freeze protection as low as 10°F on chilled water piping and any other associated appurtenances. Refer to the MCB Camp Lejeune mechanical policy for the requirements for phase and voltage protection requirements for chillers.

Provide emergency chiller connections consisting of isolation valves and blind flanges. Provide blind flanges with butterfly isolation valves at the chiller location for emergency portable chiller connection. Coordinate site plan design to accommodate access needed for an 18- wheeler flat bed to park near the flange location.

Low ambient capability must be provided to allow chillers to operate in temperatures as low as 15°F.

All coils must have the approved coatings that pass a salt-spray test conducted per ASTM B117 for duration of at least 6,000 hours and provide a minimum of loss of heat transfer due to the thickness of the coating.

Coil coating must be a flexible epoxy polymer e-coating uniformly covering the coil. Coating must meet 5B rating for Cross Hatch Adhesion according to ASTM D3359-97. Coils must include a top coat to prevent UV degradation of the e-coating film. Top coating must have a dry film thickness from 120 to 170µm. Field coated coils will not be accepted.

All coils must be constructed of compatible metals such that galvanic corrosion does not occur.

Chillers must utilize thermal dispersion type flow switches. Paddle type flow switches will not be accepted.

Chillers must include phase loss with under/over voltage protection with LED indication of the fault type.

Chillers must have a centrally located weatherproof control panel to include a DDC microprocessor controller. The control box must be designed in accordance with NEMA 3R SS rating. Controllers and screens must be located within the panel and not exposed to sunlight. Provide chiller controls with BACnet communication protocol.

Chillers must be equipped with louvered coil guards, top and bottom. Condenser fans must have sound attenuating boxes or columns as needed to reduce sound pressure levels to 85 dBA or less with a reference pressure of 20 micropascals in accordance with AHRI 575.

Provide the approved quantity, size, spacing, material, and height of bollards around all yard equipment.

Provide insulation and vapor barriers on all chilled water equipment. Use polyisocyanurate with Aluminum cover.

Provide complete system flushing and start-up for the entire chilled water system including piping.

Provide air vents at all terminal equipment and system high points, drains at terminal equipment and system low points, and provide chemical treatment equipment for chilled water piping system.

Chillers must include “Y” type strainers.

Startup must include operational testing of chiller equipment and full commissioning.

D304006 CHILLED WATER DISTRIBUTION SYSTEMS: Delete this paragraph in its entirety and replace with the following:

For buildings with less than 60 tons of cooling load, provide a constant primary pumping system to serve the HVAC chilled water equipment throughout the facility. For buildings with more than 60 tons of cooling load, provide a constant primary/variable secondary pumping arrangement with a single primary pump per chiller. For buildings with more than 160 tons of cooling load, provide a constant primary/variable secondary pumping arrangement with two primary pumps per chiller. Secondary variable pumps must be dual arm or lead/lag. In all cases, keep flow through the chiller constant.

For buildings less than 160 tons, provide two primary pumps and two secondary pumps, when secondary pumps are required, with each pump sized for 100% flow. For buildings with more than 160 tons, provide three secondary pumps, each sized for 50% of maximum building flow. Two pumps must operate as duty pumps and the third must act as standby. Provide a control sequence to rotate pump duty/standby assignments monthly and equalize running hours.

Provide valves and related chilled water system appurtenances. Provide an expansion tank and air/solids separator in chilled water system. “Triple duty” or “multi-purpose” valves that combine a check valve, throttling valve, and shut-off valve must not be used for the chilled water system. Provide air vents at all terminal equipment and system high points for air control. Provide factory installed flanged strainer package.

Provide steel and copper chilled water supply and return piping to serve the HVAC equipment throughout the facility. Insulate piping with cellular glass insulation on all above ground chilled water distribution piping.

Provide air vents at all terminal equipment and system high points for air control. Provide a shot type feeder for manual chemical feed for the chilled water piping system.

Provide flanged connections with flexible braided stainless-steel connectors at all equipment connections.

Provide thermal mass capability in the chilled water system to insure proper control and longevity of chillers by using inertia tanks. Provide inertia tanks, sized per chiller manufacturer recommendation to ensure stability of operation and temperature set point control. Total chilled water system volume must be a minimum of 7 gallons per ton of cooling. Provide an insulated storage tank within the mechanical room in order to meet this requirement.

Provide insulation, vapor barrier, and aluminum jacketing on piping exposed to outdoors. Install heat tracing on piping to ensure freeze protection to 10°F.

Provide insulation for piping exposed to outdoor ambient temperatures; provide heat tracing to ensure freeze protection down to 10°F. Heat trace must be UL listed and self-regulating cable construction consisting of two 16 AWG, stranded, nickel plated copper bus wires, between which a positive temperature coefficient conductive polymer heating element is placed. Cable must be provided with tinned copper metal braid for additional protection and path for ground fault currents, and a thermoplastic over jacket.

Provide pre-manufactured dual containment system consisting of carrier pipe, cellular glass carrier insulation, air space, steel conduit, polyurethane outer insulation, and seamless extruded HDPE casing for direct buried piping. The carrier pipe must be ASTM A53 steel schedule 40 or 80 as scheduled. The product must be rated for corrosion resistance without the need for cathodic protection. Provide with leak detection system.

Chilled water piping 4 inches and smaller must be ASTM B 88 Type K (below ground) or L (above ground) copper.

Electric resistance welded or seamless Schedule 40 black steel pipe conforming to ASTM A 53/A 53M must be used for piping greater than 4 inches.

Provide system flushing and startup for the chilled water piping system.

Provide complete startup and operational testing of all chilled water systems.

PART 3B.1 - CHAPTER 2: PROJECT OBJECTIVES – P1512F LOG OPS SCHOOL

2.4.1. Building Design - Architecture

Add:

Daylighting requirements prescribed in applicable codes and standards must be provided by only vertical fenestration elements that include vertical fenestration (windows) placed in exterior walls, a glazed exterior wall (curtain wall or storefront), vertical fenestration placed in building clerestories, or vertical fenestration elements placed in the steep sloped roofing that include dormers or monitors (raised roof area with clerestory windows above the sloped roof) that are compatible with BEAP prescribed elements and approved by MCBCL during the design process. All fenestration must incorporate shading devices/overhangs or other means to prevent direct sunlight entering occupied spaces and work surfaces per guidelines in applicable UFCs. Skylights and solar tubes are prohibited for this project.

PART 3B.1 – CHAPTER 6: B30 ROOFING – P1512F LOG OPS SCHOOL

B301006 ROOF OPENINGS AND SUPPORTS

Add:

NOT USED – this includes any type of horizontally oriented glazed roof opening that includes skylights and solar

PART 3B.1 – CHAPTER 6: D30 HVAC – P1512F LOG OPS SCHOOL

D303001 CHILLED WATER SYSTEMS: Delete this paragraph in its entirety and replace with the following:

HVAC refrigeration and air conditioning compressors must have full 5-year warranties including all parts and labor from the time of Beneficial Occupancy Provide high-efficiency air-cooled chillers. Where space allows, evaporators are preferred to be Shell and Tube type due to water issues local to MCB Camp Lejeune. Evaporators must be provided with factory-installed electric freeze protection.

Provide constant primary/variable secondary pumping systems on single chiller systems greater than 60 tons and on multiple chiller systems. Primary pumping may be used only on single chiller systems less than 60 tons. Keep flow through the chiller constant; do not use variable primary flow. A buffer tank must be provided on all systems to provide thermal inertia. Provide multiple chillers for loads greater than 160 tons with each chiller sized for 50% of the total facility cooling load.

Provide rotary screw or scroll air cooled chillers. Scroll compressors are preferred for chillers smaller than 100 tons.

Screw compressors are preferred for chillers larger than 100 tons.

For unique facilities that exhibit widely variable occupant loading, multiple dissimilar sized chillers must be provided as appropriate for the low occupancy condition and fully occupied condition and must be piped to a common header. For air-cooled scroll compressors, if low load levels are required the chiller is to include hot gas bypass to allow unit operation to 10% of full load to prevent compressors from staging on and off.

The chillers must be located in an exterior equipment yard area and properly spaced from each other and other equipment away from building perimeter. The air-cooled chiller(s) must be located outside on a 6-inch thick reinforced concrete housekeeping pad. Provide heat tape to ensure freeze protection as low as 10°F on chilled water piping and any other associated appurtenances. Refer to the MCB Camp Lejeune mechanical policy for the requirements for phase and voltage protection requirements for chillers.

Provide emergency chiller connections consisting of isolation valves and blind flanges. Provide blind flanges with butterfly isolation valves at the chiller location for emergency portable chiller connection. Coordinate site plan design to accommodate access needed for an 18- wheeler flat bed to park near the flange location.

Low ambient capability must be provided to allow chillers to operate in temperatures as low as 15°F.

All coils must have the approved coatings that pass a salt-spray test conducted per ASTM B117 for duration of at least 6,000 hours and provide a minimum of loss of heat transfer due to the thickness of the coating.

Coil coating must be a flexible epoxy polymer e-coating uniformly covering the coil. Coating must meet 5B rating for Cross Hatch Adhesion according to ASTM D3359-97. Coils must include a top coat to prevent UV degradation of the e-coating film. Top coating must have a dry film thickness from 120 to 170µm. Field coated coils will not be accepted.

All coils must be constructed of compatible metals such that galvanic corrosion does not occur.

Chillers must utilize thermal dispersion type flow switches. Paddle type flow switches will not be accepted.

Chillers must include phase loss with under/over voltage protection with LED indication of the fault type.

Chillers must have a centrally located weatherproof control panel to include a DDC microprocessor controller. The control box must be designed in accordance with NEMA 3R SS rating. Controllers and screens must be located within the panel and not exposed to sunlight. Provide chiller controls with BACnet communication protocol.

Chillers must be equipped with louvered coil guards, top and bottom. Condenser fans must have sound attenuating boxes or columns as needed to reduce sound pressure levels to 85 dBA or less with a reference pressure of 20 micropascals in accordance with AHRI 575.

Provide the approved quantity, size, spacing, material, and height of bollards around all yard equipment.

Provide insulation and vapor barriers on all chilled water equipment. Use polyisocyanurate with Aluminum cover.

Provide complete system flushing and start-up for the entire chilled water system including piping.

Provide air vents at all terminal equipment and system high points, drains at terminal equipment and system low points, and provide chemical treatment equipment for chilled water piping system.

D304006 CHILLED WATER DISTRIBUTION SYSTEMS: Delete this paragraph in its entirety and replace with the following:

For buildings with less than 60 tons of cooling load, provide a constant primary pumping system to serve the HVAC chilled water equipment throughout the facility. For buildings with more than 60 tons of cooling load, provide a constant primary/variable secondary pumping arrangement with a single primary pump per chiller. For buildings with more than 160 tons of cooling load, provide a constant primary/variable secondary pumping arrangement with two primary pumps per chiller. Secondary variable pumps must be dual arm or lead/lag. In all cases, keep flow through the chiller constant.

For buildings less than 160 tons, provide two primary pumps and two secondary pumps, when secondary pumps are required, with each pump sized for 100% flow. For buildings with more than 160 tons, provide three secondary pumps, each sized for 50% of maximum building flow. Two pumps must operate as duty pumps and the third must act as standby. Provide a control sequence to rotate pump duty/standby assignments monthly and equalize running hours.

Provide valves and related chilled water system appurtenances. Provide an expansion tank and air/solids separator in chilled water system. “Triple duty” or “multi-purpose” valves that combine a check valve, throttling valve, and shut-off valve must not be used for the chilled water system. Provide air vents at all terminal equipment and system high points for air control. Provide factory installed flanged strainer package.

Provide steel and copper chilled water supply and return piping to serve the HVAC equipment throughout the facility. Insulate piping with cellular glass insulation on all above ground chilled water distribution piping.

Provide air vents at all terminal equipment and system high points for air control. Provide a shot type feeder for manual chemical feed for the chilled water piping system.

Provide flanged connections with flexible braided stainless-steel connectors at all equipment connections.

Provide thermal mass capability in the chilled water system to insure proper control and longevity of chillers by using inertia tanks. Provide inertia tanks, sized per chiller manufacturer recommendation to ensure stability of operation and temperature set point control. Total chilled water system volume must be a minimum of 7 gallons per ton of cooling. Provide an insulated storage tank within the mechanical room in order to meet this requirement.

Provide insulation, vapor barrier, and aluminum jacketing on piping exposed to outdoors. Install heat tracing on piping to ensure freeze protection to 10°F.

Provide insulation for piping exposed to outdoor ambient temperatures; provide heat tracing to ensure freeze protection down to 10°F. Heat trace must be UL listed and self-regulating cable construction consisting of two 16 AWG, stranded, nickel plated copper bus wires, between which a positive temperature coefficient conductive polymer heating element is placed. Cable must be provided with tinned copper metal braid for additional protection and path for ground fault currents, and a thermoplastic over jacket.

Provide pre-manufactured dual containment system consisting of carrier pipe, cellular glass carrier insulation, air space, steel conduit, polyurethane outer insulation, and seamless extruded HDPE casing for direct buried piping. The carrier pipe must be ASTM A53 steel schedule 40 or 80 as scheduled. The product must be rated for corrosion resistance without the need for cathodic protection. Provide with leak detection system.

Chilled water piping 4 inches and smaller must be ASTM B 88 Type K (below ground) or L (above ground) copper.

Electric resistance welded or seamless Schedule 40 black steel pipe conforming to ASTM A 53/A 53M must be used for piping greater than 4 inches.

Provide complete startup and operational testing of all chilled water systems

PART 3B.2 - CHAPTER 2: PROJECT OBJECTIVES – P1512F JOINT RECEPTION CENTER

Add:

Daylighting requirements prescribed in applicable codes and standards must be provided by only vertical fenestration elements that include vertical fenestration (windows) placed in exterior walls, a glazed exterior wall (curtain wall or storefront), vertical fenestration placed in building clerestories, or vertical fenestration elements placed in the steep sloped roofing that include dormers or monitors (raised roof area with clerestory windows above the sloped roof) that are compatible with BEAP prescribed elements and approved by MCBCL during the design process. All fenestration must incorporate shading devices/overhangs or other means to prevent direct sunlight entering occupied spaces and work surfaces per guidelines in applicable UFCs. Skylights and solar tubes are prohibited for this project.

PART 3B.2 – CHAPTER 6: B30 ROOFING – P1512F JOINT RECEPTION CENTER

B301006 ROOF OPENING AND SUPPORTS

Add:

NOT USED – this includes any type of horizontally oriented glazed roof opening that includes skylights and solar

PART 3B.2 – CHAPTER 6: D30 HVAC – P1512F JOINT RECEPTION CENTER

D303001 CHILLED WATER SYSTEMS: Delete this paragraph in its entirety and replace with the following:

HVAC refrigeration and air conditioning compressors must have full 5-year warranties including all parts and labor from the time of Beneficial Occupancy

Provide high-efficiency air-cooled chillers. Where space allows, evaporators are preferred to be Shell and Tube type due to water issues local to MCB Camp Lejeune. Evaporators must be provided with factory-installed electric freeze protection.

Provide constant primary/variable secondary pumping systems on single chiller systems greater than 60 tons and on multiple chiller systems. Primary pumping may be used only on single chiller systems less than 60 tons. Keep flow through the chiller constant; do not use variable primary flow. A buffer tank must be provided on all systems to provide thermal inertia. Provide multiple chillers for loads greater than 160 tons with each chiller sized for 50% of the total facility cooling load.

Provide rotary screw or scroll air cooled chillers. Scroll compressors are preferred for chillers smaller than 100 tons.

Screw compressors are preferred for chillers larger than 100 tons.

For unique facilities that exhibit widely variable occupant loading, multiple dissimilar sized chillers must be provided as appropriate for the low occupancy condition and fully occupied condition and must be piped to a common header. For air-cooled scroll compressors, if low load levels are required the chiller is to include hot gas bypass to allow unit operation to 10% of full load to prevent compressors from staging on and off.

The chillers must be located in an exterior equipment yard area and properly spaced from each other and other equipment away from building perimeter. The air-cooled chiller(s) must be located outside on a 6-inch thick reinforced concrete housekeeping pad. Provide heat tape to ensure freeze protection as low as 10°F on chilled water piping and any other associated appurtenances. Refer to the MCB Camp Lejeune mechanical policy for the requirements for phase and voltage protection requirements for chillers.

Provide emergency chiller connections consisting of isolation valves and blind flanges. Provide blind flanges with butterfly isolation valves at the chiller location for emergency portable chiller connection. Coordinate site plan design to accommodate access needed for an 18- wheeler flat bed to park near the flange location.

Low ambient capability must be provided to allow chillers to operate in temperatures as low as 15°F.

All coils must have the approved coatings that pass a salt-spray test conducted per ASTM B117 for duration of at least 6,000 hours and provide a minimum of loss of heat transfer due to the thickness of the coating.

Coil coating must be a flexible epoxy polymer e-coating uniformly covering the coil. Coating must meet 5B rating for Cross Hatch Adhesion according to ASTM D3359-97. Coils must include a top coat to prevent UV degradation of the e-coating film. Top coating must have a dry film thickness from 120 to 170µm. Field coated coils will not be accepted.

All coils must be constructed of compatible metals such that galvanic corrosion does not occur.

Chillers must utilize thermal dispersion type flow switches. Paddle type flow switches will not be accepted.

Chillers must include phase loss with under/over voltage protection with LED indication of the fault type.

Chillers must have a centrally located weatherproof control panel to include a DDC microprocessor controller. The control box must be designed in accordance with NEMA 3R SS rating. Controllers and screens must be located within the panel and not exposed to sunlight. Provide chiller controls with BACnet communication protocol.

Chillers must be equipped with louvered coil guards, top and bottom. Condenser fans must have sound attenuating boxes or columns as needed to reduce sound pressure levels to 85 dBA or less with a reference pressure of 20 micropascals in accordance with AHRI 575.

Provide the approved quantity, size, spacing, material, and height of bollards around all yard equipment.

Provide insulation and vapor barriers on all chilled water equipment. Use polyisocyanurate with Aluminum cover.

Provide complete system flushing and start-up for the entire chilled water system including piping.

Provide air vents at all terminal equipment and system high points, drains at terminal equipment and system low points, and provide chemical treatment equipment for chilled water piping system.

Chillers must include “Y” type strainers.

Startup must include operational testing of chiller equipment and full commissioning.

For buildings with less than 60 tons of cooling load, provide a constant primary pumping system to serve the HVAC chilled water equipment throughout the facility. For buildings with more than 60 tons of cooling load, provide a constant primary/variable secondary pumping arrangement with a single primary pump per chiller. For buildings with more than 160 tons of cooling load, provide a constant primary/variable secondary pumping arrangement with two primary pumps per chiller. Secondary variable pumps must be dual arm or lead/lag. In all cases, keep flow through the chiller constant.

For buildings less than 160 tons, provide two primary pumps and two secondary pumps , when secondary pumps are required, with each pump sized for 100% flow. For buildings with more than 160 tons, provide three secondary pumps, each sized for 50% of maximum building flow. Two pumps must operate as duty pumps and the third must act as standby. Provide a control sequence to rotate pump duty/standby assignments monthly and equalize running hours.

Provide valves and related chilled water system appurtenances. Provide an expansion tank and air/solids separator in chilled water system. “Triple duty” or “multi-purpose” valves that combine a check valve, throttling valve, and shut-off valve must not be used for the chilled water system. Provide air vents at all terminal equipment and system high points for air control. Provide factory installed flanged strainer package.

Provide steel and copper chilled water supply and return piping to serve the HVAC equipment throughout the facility. Insulate piping with cellular glass insulation on all above ground chilled water distribution piping.

Provide air vents at all terminal equipment and system high points for air control. Provide a shot type feeder for manual chemical feed for the chilled water piping system.

Provide flanged connections with flexible braided stainless-steel connectors at all equipment connections.

Provide thermal mass capability in the chilled water system to insure proper control and longevity of chillers by using inertia tanks. Provide inertia tanks, sized per chiller manufacturer recommendation to ensure stability of operation and temperature set point control. Total chilled water system volume must be a minimum of 7 gallons per ton of cooling. Provide an insulated storage tank within the mechanical room in order to meet this requirement.

Provide insulation, vapor barrier, and aluminum jacketing on piping exposed to outdoors. Install heat tracing on piping to ensure freeze protection to 10°F.

Provide insulation for piping exposed to outdoor ambient temperatures; provide heat tracing to ensure freeze protection down to 10°F. Heat trace must be UL listed and self-regulating cable construction consisting of two 16 AWG, stranded, nickel plated copper bus wires, between which a positive temperature coefficient conductive polymer heating element is placed. Cable must be provided with tinned copper metal braid for additional protection and path for ground fault currents, and a thermoplastic over jacket.

Provide pre-manufactured dual containment system consisting of carrier pipe, cellular glass carrier insulation, air space, steel conduit, polyurethane outer insulation, and seamless extruded HDPE casing for direct buried piping. The carrier pipe must be ASTM A53 steel schedule 40 or 80 as scheduled. The product must be rated for corrosion resistance without the need for cathodic protection. Provide with leak detection system.

Chilled water piping 4 inches and smaller must be ASTM B 88 Type K (below ground) or L (above ground) copper.

Electric resistance welded or seamless Schedule 40 black steel pipe conforming to ASTM A 53/A 53M must be used for piping greater than 4 inches.

PART 3B.3 - CHAPTER 2: PROJECT OBJECTIVE - P1512F RENOVATE M107

2.4.1.1.d: Delete this paragraph in its entirety and replace with the following:

Aluminum Standing Seam Metal Roofing (Option 2 for roofing) – NOT USED. This roofing option for providing a new steep sloped standing seam roofing overbuild over the existing low sloped roof is being deleted from the project.

Add:

e) Roof Openings – For all roofing replacement or repair options described in this section solar tubes and skylights are prohibited from being introduced into roof areas for this project.

PART 3B.3 – CHAPTER 6: B30 ROOFING – P1512F RENOVATE M107

Roof openings are not allowed. This includes openings required for solar tubes and skylights that are prohibited for this project.

PART 3B.3 – CHAPTER 6: D30 HVAC – P1512F RENOVATE M107

D303001 CHILLED WATER SYSTEMS: Delete this paragraph in its entirety and replace with the following:

HVAC refrigeration and air conditioning compressors must have full 5-year warranties including all parts and labor from the time of Beneficial Occupancy Provide high-efficiency air-cooled chillers. Where space allows, evaporators are preferred to be Shell and Tube type due to water issues local to MCB Camp Lejeune. Evaporators must be provided with factory-installed electric freeze protection.

Provide constant primary/variable secondary pumping systems on single chiller systems greater than 60 tons and on multiple chiller systems. Primary pumping may be used only on single chiller systems less than 60 tons. Keep flow through the chiller constant; do not use variable primary flow. A buffer tank must be provided on all systems to provide thermal inertia. Provide multiple chillers for loads greater than 160 tons with each chiller sized for 50% of the total facility cooling load.

Provide rotary screw or scroll air cooled chillers. Scroll compressors are preferred for chillers smaller than 100 tons.

Screw compressors are preferred for chillers larger than 100 tons.

For unique facilities that exhibit widely variable occupant loading, multiple dissimilar sized chillers must be provided as appropriate for the low occupancy condition and fully occupied condition and must be piped to a common header. For air-cooled scroll compressors, if low load levels are required the chiller is to include hot gas bypass to allow unit operation to 10% of full load to prevent compressors from staging on and off.

The chillers must be located in an exterior equipment yard area and properly spaced from each other and other equipment away from building perimeter. The air-cooled chiller(s) must be located outside on a 6-inch thick reinforced concrete housekeeping pad. Provide heat tape to ensure freeze protection as low as 10°F on chilled water piping and any other associated appurtenances. Refer to the MCB Camp Lejeune mechanical policy for the requirements for phase and voltage protection requirements for chillers.

Provide emergency chiller connections consisting of isolation valves and blind flanges. Provide blind flanges with butterfly isolation valves at the chiller location for emergency portable chiller connection. Coordinate site plan design to accommodate access needed for an 18- wheeler flat bed to park near the flange location.

Low ambient capability must be provided to allow chillers to operate in temperatures as low as 15°F.

All coils must have the approved coatings that pass a salt-spray test conducted per ASTM B117 for duration of at least 6,000 hours and provide a minimum of loss of heat transfer due to the thickness of the coating.

Coil coating must be a flexible epoxy polymer e-coating uniformly covering the coil. Coating must meet 5B rating for Cross Hatch Adhesion according to ASTM D3359-97. Coils must include a top coat to prevent UV degradation of the e-coating film. Top coating must have a dry film thickness from 120 to 170µm. Field coated coils will not be accepted.

All coils must be constructed of compatible metals such that galvanic corrosion does not occur.

Chillers must utilize thermal dispersion type flow switches. Paddle type flow switches will not be accepted.

Chillers must include phase loss with under/over voltage protection with LED indication of the fault type.

Chillers must have a centrally located weatherproof control panel to include a DDC microprocessor controller. The control box must be designed in accordance with NEMA 3R SS rating. Controllers and screens must be located within the panel and not exposed to sunlight. Provide chiller controls with BACnet communication protocol.

Chillers must be equipped with louvered coil guards, top and bottom. Condenser fans must have sound attenuating boxes or columns as needed to reduce sound pressure levels to 85 dBA or less with a reference pressure of 20 micropascals in accordance with AHRI 575.

Provide the approved quantity, size, spacing, material, and height of bollards around all yard equipment.

Provide insulation and vapor barriers on all chilled water equipment. Use polyisocyanurate with Aluminum cover.

Provide complete system flushing and start-up for the entire chilled water system including piping.

Provide air vents at all terminal equipment and system high points, drains at terminal equipment and system low points, and provide chemical treatment equipment for chilled water piping system.

Chillers must include “Y” type strainers.

Startup must include operational testing of chiller equipment and full commissioning.

D304006 CHILLED WATER DISTRIBUTION SYSTEMS: Delete this paragraph in its entirety and replace with the following:

For buildings with less than 60 tons of cooling load, provide a constant primary pumping system to serve the HVAC chilled water equipment throughout the facility. For buildings with more than 60 tons of cooling load, provide a constant primary/variable secondary pumping arrangement with a single primary pump per chiller. For buildings with more than 160 tons of cooling load, provide a constant primary/variable secondary pumping arrangement with two primary pumps per chiller. Secondary variable pumps must be dual arm or lead/lag. In all cases, keep flow through the chiller constant.

For buildings less than 160 tons, provide two primary pumps and two secondary pumps, when secondary pumps are required, with each pump sized for 100% flow. For buildings with more than 160 tons, provide three secondary pumps, each sized for 50% of maximum building flow. Two pumps must operate as duty pumps and the third must act as standby. Provide a control sequence to rotate pump duty/standby assignments monthly and equalize running hours.

Provide valves and related chilled water system appurtenances. Provide an expansion tank and air/solids separator in chilled water system. “Triple duty” or “multi-purpose” valves that combine a check valve, throttling valve, and shut-off valve must not be used for the chilled water system. Provide air vents at all terminal equipment and system high points for air control. Provide factory installed flanged strainer package.

Provide steel and copper chilled water supply and return piping to serve the HVAC equipment throughout the facility. Insulate piping with cellular glass insulation on all above ground chilled water distribution piping.

Provide air vents at all terminal equipment and system high points for air control. Provide a shot type feeder for manual chemical feed for the chilled water piping system.

Provide flanged connections with flexible braided stainless-steel connectors at all equipment connections.

Provide thermal mass capability in the chilled water system to insure proper control and longevity of chillers by using inertia tanks. Provide inertia tanks, sized per chiller manufacturer recommendation to ensure stability of operation and temperature set point control. Total chilled water system volume must be a minimum of 7 gallons per ton of cooling. Provide an insulated storage tank within the mechanical room in order to meet this requirement.

Provide insulation, vapor barrier, and aluminum jacketing on piping exposed to outdoors. Install heat tracing on piping to ensure freeze protection to 10°F.

Provide insulation for piping exposed to outdoor ambient temperatures; provide heat tracing to ensure freeze protection down to 10°F. Heat trace must be UL listed and self-regulating cable construction consisting of two 16 AWG, stranded, nickel plated copper bus wires, between which a positive temperature coefficient conductive polymer heating element is placed. Cable must be provided with tinned copper metal braid for additional protection and path for ground fault currents, and a thermoplastic over jacket.

Provide pre-manufactured dual containment system consisting of carrier pipe, cellular glass carrier insulation, air space, steel conduit, polyurethane outer insulation, and seamless extruded HDPE casing for direct buried piping. The carrier pipe must be ASTM A53 steel schedule 40 or 80 as scheduled. The product must be rated for corrosion resistance without the need for cathodic protection. Provide with leak detection system.

Chilled water piping 4 inches and smaller must be ASTM B 88 Type K (below ground) or L (above ground) copper.

Electric resistance welded or seamless Schedule 40 black steel pipe conforming to ASTM A 53/A 53M must be used for piping greater than 4 inches.

PART 3C - CHAPTER 2: PROJECT OBJECTIVES – P1527F LOGCOM CSP WAREHOUSE

Daylighting requirements prescribed in applicable codes and standards must be provided by only vertical fenestration elements that include vertical fenestration (windows) placed in exterior walls, a glazed exterior wall (curtain wall or storefront), vertical fenestration placed in building clerestories, or vertical fenestration elements placed on the flat roofing that include monitors (raised roof area with clerestory windows above the flat roof) that are compatible with BEAP prescribed elements and approved by MCBCL during the design process. All fenestration must incorporate shading devices/overhangs or other means to prevent direct sunlight entering occupied spaces and work surfaces per guidelines in applicable UFCs. Skylights and solar tubes are prohibited for this project.

PART 3C – CHAPTER 6: B30 ROOFING – P1512F JOINT RECEPTION CENTER

Add:

NOT USED – this includes any type of horizontally oriented glazed roof opening that includes skylights and solar

PART 3C – CHAPTER 6: D30 HVAC – P1527F LOGCOM CSP WAREHOUSE REPLACEMENT

D303001 CHILLED WATER SYSTEMS: Delete this paragraph in its entirety and replace with the following:

HVAC refrigeration and air conditioning compressors must have full 5-year warranties including all parts and labor from the time of Beneficial Occupancy

Provide high-efficiency air-cooled chillers. Where space allows, evaporators are preferred to be Shell and Tube type due to water issues local to MCB Camp Lejeune. Evaporators must be provided with factory-installed electric freeze protection.

Provide constant primary/variable secondary pumping systems on single chiller systems greater than 60 tons and on multiple chiller systems. Primary pumping may be used only on single chiller systems less than 60 tons. Keep flow through the chiller constant; do not use variable primary flow. A buffer tank must be provided on all systems to provide thermal inertia. Provide multiple chillers for loads greater than 160 tons with each chiller sized for 50% of the total facility cooling load.

Provide rotary screw or scroll air cooled chillers. Scroll compressors are preferred for chillers smaller than 100 tons.

Screw compressors are preferred for chillers larger than 100 tons.

For unique facilities that exhibit widely variable occupant loading, multiple dissimilar sized chillers must be provided as appropriate for the low occupancy condition and fully occupied condition and must be piped to a common header. For air-cooled scroll compressors, if low load levels are required the chiller is to include hot gas bypass to allow unit operation to 10% of full load to prevent compressors from staging on and off.

The chillers must be located in an exterior equipment yard area and properly spaced from each other and other equipment away from building perimeter. The air-cooled chiller(s) must be located outside on a 6-inch thick reinforced concrete housekeeping pad. Provide heat tape to ensure freeze protection as low as 10°F on chilled water piping and any other associated appurtenances. Refer to the MCB Camp Lejeune mechanical policy for the requirements for phase and voltage protection requirements for chillers.

Provide emergency chiller connections consisting of isolation valves and blind flanges. Provide blind flanges with butterfly isolation valves at the chiller location for emergency portable chiller connection. Coordinate site plan design to accommodate access needed for an 18- wheeler flat bed to park near the flange location.

Low ambient capability must be provided to allow chillers to operate in temperatures as low as 15°F.

All coils must have the approved coatings that pass a salt-spray test conducted per ASTM B117 for duration of at least 6,000 hours and provide a minimum of loss of heat transfer due to the thickness of the coating.

Coil coating must be a flexible epoxy polymer e-coating uniformly covering the coil. Coating must meet 5B rating for Cross Hatch Adhesion according to ASTM D3359-97. Coils must include a top coat to prevent UV degradation of the e-coating film. Top coating must have a dry film thickness from 120 to 170µm. Field coated coils will not be accepted.

All coils must be constructed of compatible metals such that galvanic corrosion does not occur.

Chillers must utilize thermal dispersion type flow switches. Paddle type flow switches will not be accepted.

Chillers must include phase loss with under/over voltage protection with LED indication of the fault type.

Chillers must have a centrally located weatherproof control panel to include a DDC microprocessor controller. The control box must be designed in accordance with NEMA 3R SS rating. Controllers and screens must be located within the panel and not exposed to sunlight. Provide chiller controls with BACnet communication protocol.

Chillers must be equipped with louvered coil guards, top and bottom. Condenser fans must have sound attenuating boxes or columns as needed to reduce sound pressure levels to 85 dBA or less with a reference pressure of 20 micropascals in accordance with AHRI 575.

Provide the approved quantity, size, spacing, material, and height of bollards around all yard equipment.

Provide insulation and vapor barriers on all chilled water equipment. Use polyisocyanurate with Aluminum cover.

Provide complete system flushing and start-up for the entire chilled water system including piping.

Provide air vents at all terminal equipment and system high points, drains at terminal equipment and system low points, and provide chemical treatment equipment for chilled water piping system.

For buildings with less than 60 tons of cooling load, provide a constant primary pumping system to serve the HVAC chilled water equipment throughout the facility. For buildings with more than 60 tons of cooling load, provide a constant primary/variable secondary pumping arrangement with a single primary pump per chiller.