SOL_AMENDMENT_W911N2-17-R-0033-0002.pdf

BOBIE JO BURKETT

717-267-5283

LETTERKENNY CONTRACTING OFFICE - ACC

1 OVERCASH AVENUE CCAM-DPD BLDG 2S

CHAMBERSBURG PA 17201-4150

W25G1Q7072007Z

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

The purpose of this amendment is to revise the Purchase Description due to production requirements.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 12

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

16C. DATE SIGNED

BY 21-Jul-2017

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 W911N2-17-R-0033

X 9B. DATED (SEE ITEM 11)

19-May-2017

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

21-Jul-2017

CODE

LETTERKENNY ARMY DEPOT

LETTERKENNY CONTRACTING OFFICE - ACC

1 OVERCASH AVENUE, ATTN: CCAM-ALK, BLDG 2S

CHAMBERSBURG PA 17201-4150

W911N2 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE W911N2

FACILITY CODECODE

EMAIL:TEL:

W911N2-17-R-0033

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 1449 - CONTINUATION SHEET

SOLICITATION/CONTRACT FORM

The required response date/time has changed from 23-Jun-2017 01:00 PM to 31-Jul-2017 01:00 PM.

The following have been added by full text:

REVISED PURCHASE DESCRIPTON

PRODUCTION ENGINEERING

PURCHASE DESCRIPTION

PATRIOT RADAR ENVIRONMENTAL TEST CHAMBER UPGRADE

1.0 GENERAL

1.1 SCOPE: This purchase description includes multiple system upgrades for the PATRIOT radar environmental test chamber (Asset # S2024) located next to building 403 at Letterkenny Army Depot’s Radar Test Site. The purpose of these upgrades is to add cooling capacity, improve efficiency, lower operating costs, and achieve a thermal test range of +120° to -40° F, maintained for up to 4 hours, regardless of local weather conditions, the climate test chamber shall be able to reach and maintain the above thermal test range. The contractor shall provide and install upgrades to the climate chamber and provide support to ensure optimal operation after all upgrades have been completed. The following upgrades shall be performed by the contractor: (i) provide and install one new Modular cooling Plenum, (MP), with a gross cooling capacity of 94,000 BTUH at -40⁰F, and associated installation requirements (ii) modify six existing cascade MP units to operate in single stage Heating, Ventilation and Air Conditioning (HVAC) mode, (iii) provide four complete compressor replacement kits and install one kit in an existing MP, (iv) Integrate new and modified MP functionality with the existing test chamber automated control system to utilize the additional capacity and modified MP units with minimal operator interaction, (v) provide and install one 150kw portable resistive heat load bank for testing and validation, and (vi) provide and install four wall mounted circulation fans. All changes, upgrades and verifications shall be completed in accordance with the specifications outlined in this document. The climate test chamber shall be fully operational upon completion of work as a complete turnkey operation by the contractor.

1.2 GENERAL INFORMATION

1.2.1 Place and Performance of Installation: The Climate Test Chamber Upgrades will be installed next to building 403 on Letterkenny Army Depot’s Radar Test Site. All work shall be performed between the hours of 6:00 AM and 10:00 PM (1st and 2nd Shift at LEAD), Monday thru Friday, with closing every second Friday per the depot schedule, exclusive of Federal Holidays and special depot closures (typically the Monday before or Thursday after Fed Holidays that fall on either Tues or Thurs). Other hours, weekend, and holiday work will be considered separately as requested by the contractor and approved by the Contracting Officer. At a minimum of 10 business days in advance, the contractor shall provide written requests for work between the hours of 10:00PM and 6:00 AM (3rd shift at LEAD) and weekend work for approval through the Contracting Officer.

1.2.2. Security Requirements: The Contractor shall be responsible to ensure all employees and subcontractor employees that will visit the depot shall with applicable installation, facility and area commander installation/facility access and local security policies and procedures (provided by government representative). The contractor shall also provide all information required for background checks to meet installation access requirements to be accomplished by installation Provost Marshall Office, Director of Emergency Services (formerly Director of Risk Management) or Security Office. Contractor workforce shall comply with all personal identity verification requirements as directed by DOD, HQDA and/or local policy. Should the Force Protection Condition (FPCON) change, the Government may require changes in contractor security matters or processes.

1.2.3 Security, Safety and Fire Protection: All work shall comply with LEAD Regulation 385-1 and LEAD Pamphlet 385-4.

1.2.4 AT Level I Awareness Training: All contractor employees, to include subcontractor employees, requiring access to Army installations, facilities, and controlled access areas shall complete AT Level I awareness training within 30 calendar days after contract start date or effective date of incorporation of this requirement into the contract, whichever is applicable. The contractor shall submit certificates of completion for each affected contractor employee and subcontractor employee to the COR or to the contracting officer, if a COR is not assigned, within 15 calendar days after completion of training by all employees and subcontractor personnel. AT Level I awareness training is available at the following website: www.lead.army.mil.

1.2.5 iWATCH Training: The contractor and all associated sub-contractors with an area of performance within an Army-controlled installation, facilities or area shall brief all employees on the local iWATCH program. This local developed training will be used to inform employees of the types of behavior to watch for and instruct employees to report suspicious activity to the TPOC or contracting officer. This training shall be completed within 30 calendar days of contract award and within 30 calendar days of new employees commencing performance. The contractor shall report completion for each affected contractor employee and subcontractor employee, to the TPOC and contracting officer within 15 calendar days after completion of training. iWATCH training is available on the Letterkenny Army Depot homepage – www.lead.army.mil.

1.2.6 OPSEC Training: Per AR 530-1, Operations Security. Contractor employees and associated sub-contractor employees shall complete Level I OPSEC training within 30 calendar days of their reporting for duty and annually thereafter. The contractor shall submit certificates of completion for each affected contractor employee and subcontractor employee, to the COR or to the contracting officer if a COR is not assigned, within 15 calendar days after completion of training. Level 1 OPSEC training is available on the Letterkenny Army Depot homepage – www.lead.army.mil

1.2.7 Badges: Identification badges will be issued for admittance of personnel before performing work or service on this contract. The identification badge is the property of the US Government and shall be returned upon termination or demand. The contractor/vendor shall ensure all badges issued to employees are returned to the Badge and Identification Section, Security Division, Letterkenny Army Depot promptly on termination of need or on expiration, which occurs first. The badge room is located in Bldg 2, phone # 717-267-5301. Hours of operation are 7:30 AM to 3:30 PM, Monday thru Thursday, exclusive of Federal Holidays.

1.2.8 Threat Awareness Reporting Program (TARP) Training: For all contractors with security clearances. Per AR 381-12 Threat Awareness and Reporting Program (TARP), contractor employees shall receive annual TARP training by a CI agent or other trainer as specified in 2-4b.

2.0 GOVERNMENT FURNISHED PROPERTY AND MATERIALS: The government will provide the facilities, equipment, materials and/or services listed below:

2.1 Facilities: The Government will provide clear access to all working areas necessary for the contractor to perform the installation outlined, during the specified hours listed in Section 1.2.1 above. LEAD personnel will be permitted access by the contractor at any time for project inspection or work/safety permitting. LEAD will provide contractor access to inside of chamber only during 60 calendar days of installation (reference Section 9.8).

2.2 Equipment: None

2.3 Materials:

2.3.1 LEAD will temporarily provide a dead load mass/actual radar for final validation testing inside the Climate Chamber after the contractor advises the Government TPOC.

2.4 Utilities:

2.4.1 The Government will provide electricity for contractor hand tools.

2.4.2 LEAD will provide electrical power disconnect switch outside within 25 feet of air cooled condensing unit, as needed. Contractor shall field verify all existing conditions and requirements before design, purchase, or installation of related equipment.

3.0 CONTRACTOR RESPONSIBILITIES: The contractor shall be responsible for the following:

3.1 Contractor shall provide LEAD within 60 calendar days (or indicated otherwise), after award of contract, the following:

- (In advance of contractor bid submittal or 60 calendar days after award) Provide LEAD a site survey/performance assessment report of the entire Climate Chamber and systems existing conditions (subject to change) and recommended repair parts list (or spares if parts are not installed by contractor, per Section 4.1.4). With no additional cost to the Government and no Government authorized obligation, this site survey/performance assessment is able to be performed multiple times at the discretion of the awarded contractor to identify required repair parts.

- List of all utility requirements for installation (including power: voltage/amperage requirements),

- Detailed installation schematics

- Equipment placement layouts

- Preliminary Installation schedule, not to exceed 60 calendar days (reference Section 9.8)

- LEAD TPOC shall review these electronic submittals and provide comments to contractor Electronically (email) within 10 business days after all documents have been received

- Within 10 business days after the Notice to Proceed is provided by the Contracting Officer, the contractor shall provide a finalized firm installation schedule for work during 60 calendar days of installation downtime.

3.2 Supply all equipment, parts, labor and materials necessary for the off-loading, positioning, installation and proper operation of the systems.

3.3 Design and install all necessary ductwork and ductwork transition parts.

3.4 Provide and install one (1) electrical power disconnect switch and one (1) appropriate rated receptacle inside the Environmental Test Chamber (to connect wiring for load bank, reference Section 4.6). Ensure electrical installation is performed in accordance with the National Electrical Code, the National Electrical Manufacturers Association, and NFPA 70.

3.4.1 The electric power feed for the disconnect switch/receptacle shall be installed in metal conduit from the electrical panel in the Environmental Test Chamber equipment room. The installation shall include an interlocked disconnect and receptacle (200 amp / 600 volt rating), and both shall be rated for 200 amp continuous use.

Equipment shall be rated to operate from -35 degrees to 120 degrees Fahrenheit. The cord and plug for the load bank shall be rated for operation in the extreme temperatures of the chamber also. All wall penetrations, sealing, and equipment shall not degrade the integrity of performance of the climate chamber.

3.4.2 The mechanically interlocked disconnect and receptacle provides a necessary added safety measure for this installation. The interlock mechanism will require the disconnect switch to remain open ("OFF" position), prohibiting the plug from being inserted or removed while energized (under load). The interlock mechanism prevents the switch from being closed ("ON" position) until the plug is fully engaged into the receptacle. This interlock feature will prevent any chance of contact with energized 480 volt facilities.

3.5 (OPTIONAL) All excess equipment, shipping crates, scrap and materials used by the contractor shall be removed by the contractor. The contractor shall provide LEAD any unused spare parts purchased (i.e. from the site survey/performance assessment for repair parts per section 3.1) in crated containers and preserved for long term storage. The contractor shall identify, provide LEAD a list, and purchase any repair parts required (per Sections 4.1.4, 4.4.6). For example, long-lead items, high risk items, high wear parts, repair parts for degenerative performance conditions, etc. shall be provided for installation by the contractor, if required to meet criteria in Sections 4.1.4, and 4.4.6 to meet project 60 calendar day downtime installation schedule (per Section 9.8) As required, repair parts shall be documented and tracked and reported to Contracting Officer and Government TPOC for any extension/deviation to 60 calendar day downtime schedule (Section 9.8).

3.6 The contractor shall be responsible for obtaining site/equipment measurements and dimensions. Any dimensions provided by government personnel shall be considered approximate and shall not be used for design purposes. Failure of the contractor to acquaint himself with conditions attending the work site will not be considered sufficient reason for changing the cost or performance schedule of this project.

3.7 The contractor shall be responsible for providing onsite training for LEAD personnel in the operation of all newly installed equipment, upgrades, logic controls and any other changes or updates made to the climate test chamber under specifications listed in this contract. All instructions, oral and written, shall be in the English language. The TPOC will coordinate and provide a list of individuals to be trained. Onsite training shall be performed after successful completion of all installation and test specifications.

3.8 The contractor shall make all connections to existing utilities to ensure that the equipment is completely operational.

3.9 The contractor shall make all connections in accordance with all codes covering the various trades and NFPA requirements.

4.0 SPECIFICATIONS: The following specifications apply to the climate chamber’s system components including an additional MP, modified MPs, replacement compressor equipment, compressor replacement kits, upgraded logic controls, and heat load bank.

4.1 General:

4.1.1 The climate test chamber (CSZ Model WM-33750-(6) MP4-30-30-S/RAC, SN 06-WM14506) is located next to building 403 at Letterkenny Army Depot Radar Test Site.

4.1.2 Upgrades to the system are required to ensure the climate test chamber can achieve a range of +120° to -40⁰ F and maintain 70 degree F ambient temperature regardless of weather conditions, and maintain any temperature set point between +120⁰ and -35⁰ F for a period of four (4) hours. Two modes of chamber operation are described below.

4.1.2.1 NORMAL MODE shall utilize the full cooling capacity of the existing and new cascade MP over the chamber operating temperature range of +120⁰F to -35⁰F, automatically selecting the most efficient MP configuration, single stage or cascade, to maintain the set point temperature or ramp profile with a maximum live load of 110 kW and a thermal mass of 46,000 lbs. of steel. CASCADE shall be activated when temperature sensor in chamber indicates it has reached a contractor determined set point (i.e. 40⁰F) for most efficient system cooling operation (reference Section 4.5.4.1).

4.1.2.3 HVAC MODE shall be a Heating, Ventilation, Air Conditioning function utilizing the (1) new and (6) modified MPs to maintain the chamber temperature between 65⁰F and 75⁰F with a live load of zero (0) kW to 110 kW for a minimum of six hours utilizing only the modified R-404A refrigeration loops.

4.1.3 Installation shall include all electrical power and electronic control connections.

4.1.4 The new upgraded components of the climate chamber (i.e. HVAC, refrigeration, humidification, hardware, software, control systems, etc.) shall be fully operational upon government acceptance. The contractor shall verify functionality of and make corrections as necessary for all aspects of the control system new upgraded components to include the heating and cooling system controller, chart recorder, temperature safety sensor, humidity sensor, and oxygen sensor. All testing and fine adjustments shall be completed before onsite training of Letterkenny personnel.

4.1.5 Complete turnkey installation, to include all necessary parts, modifications and labor shall be provided by the contractor.

4.2 New Modular Cooling Plenum (MP):

4.2.1 The purpose of the one new MP is to provide supplemental and redundant cooling capacity. The new MP shall operate in conjunction with the existing MP units in both NORMAL and HVAC mode to supplement cooling capacity during heavy thermal load and to provide backup capacity if one of the six existing MPs is offline.

4.2.2 Cooling Capacity: The new MP shall operate over the chamber temperature range from +120⁰ to -40⁰ F with a gross cooling capacity of approximately 94,000 BTUH at -40⁰ F and 125,000 BTUH at 70⁰ F chamber set point temperature at an outdoor temperature of 90⁰ F. The contractor shall provide one Model MP4S-30-30-S/RAC Custom Configured Modular Conditioning Plenum, supporting air-cooled condenser, and concrete mounting pad will be provided. This one (1) new MP unit is very similar to the six (6) modular plenum systems already installed.

This unit shall be configured to provide the same auxiliary (HVAC) cooling mode. The control logic to manage this new MP shall be provided as needed.

4.2.3 The new MP shall be integrated with and under the control of the existing chamber automated control system, including emergency stop, in the same manner as the existing MP units.

4.2.4 The new MP shall utilize 460 VAC, 60 HZ, 3 Phase power supplied from the chamber power panel. The contractor shall identify and provide power requirements (reference Section 3.1)

4.2.5 The new MP shall be physically located on the north east chamber wall and adjacent to the left side of main chamber entry doors (when viewed from the outside). The new MP and associated condenser shall not interfere with the normal range of motion of the main doors nor present a personnel hazard during operation of the doors. The new equipment shall not block the personnel door located on the north east wall of the chamber.

4.2.6 MP ductwork installed inside the chamber shall not inhibit the existing overhead crane loading and unloading operation, restrict asset placement inside, or block the existing personnel door.

4.2.7 The new MP enclosure and electrical/mechanical interface with the chamber wall shall be weather proof. The new MP shall be designed to operate in year-round weather conditions for this geographical site without any supplemental protection from the elements.

4.2.8 A concrete pad shall be installed by the contractor for placement of the new MP and air cooled condensing unit. The concrete pad shall meet the following specifications:

- The pad shall be a thickened-edge slab

- The minimum depth of concrete shall be 6 inches.

- The concrete shall be reinforced using 6 x 6 welded wire fabric.

- The concrete shall have a minimum compressive strength of 4,000 psi. After placement of the concrete, curing/sealing compound (Krystal OTC 25 or approved equal) shall be applied in accordance with the manufacturer’s specifications.

- The concrete shall have minimal slope for water runoff.

- The guard posts or bollards shall be installed around the pad perimeter adjacent to vehicle access routes or parking areas.

- The guard posts shall be spaced 5 feet apart from each other to restrict vehicle traffic

- The guard posts shall be 6-inch diameter concrete-filled schedule 40 steel pipe bollards.

- The bollards shall be painted with one coat of metal primer and two finish coats of exterior enamel. The color shall be safety yellow.

4.3 Modular Plenum Modifications:

4.3.1 The six existing MPs shall be modified to operate in single stage HVAC mode utilizing only the R-404A refrigerant cooling loop while retaining the existing cascade mode of operation and cooling capacity utilizing the R- 508B and R-404A refrigerant loops.

4.3.2 The HVAC mode modification includes the installation of an additional R-404A refrigerant loop evaporator, valves, and components to allow the MP to function in the cascade mode or the single stage HVAC mode under control of the existing chamber automatic control system.

4.3.3 The cooling capacity of a modified MP operating in single stage HVAC mode will be equivalent to the capacity of an unmodified cascade MP from 5⁰F to 120⁰F. The cooling capacity of a modified MP operating in cascade mode will be equivalent to the capacity of an unmodified MP from 5⁰F to -35⁰F. (approx. 94,000 BTUH at - 40⁰F and 125,000 BTUH at 70⁰F chamber temperature set point)

4.3.4 The modified MPs shall automatically switch between single stage HVAC mode and cascade NORMAL mode to provide the most efficient operation at any temperature set point in the operational range.

4.3.5 (OPTIONAL) The halogen light fixtures on the existing MPs, twelve (12) total, shall be replaced with (6) new 70W LED flood lamp style fixtures. There shall be one new fixture at each MP, and mounted approximately 12 feet high above the floor. The spare lighting conduits from the removed fixtures shall be left in place and wiring terminated in a weatherproof box.

4.3.6 (OPTIONAL) The contractor shall provide and install a completely new circuit breaker/lighting circuit with 20 amp 120 volt power from the gear room low voltage panel. This general lighting circuit will provide power to (4) new 200W (20,000 lumens) LED flood fixtures mounted on the four corners of the booth walls approximately 10- 12 feet in from each end of the building at a height of approximately 21 feet. No modification to crane support system shall be made by contractor. This dedicated circuit will have a surface mounted light switch in the control room at the chamber entrance. All new lights, at a minimum, shall be rated temperature range of -40⁰F through 130F and have IP65 rated housings.

4.3.7 Contractor shall verify proper working conditions and make modifications as needed to the condensate evaporation pan assembly located in the bottom of each of the (6) MPs. Contractor shall repair, replace, install new parts as required, and verify heat strip operation that evaporates condensate to prevent condensate water overflow from the pans. The new MP shall be provided with an equal condensate heater operation to prevent condensate overflow from the pan. The final condition of the condensate heater operation shall be adequate to prevent overflow from the MP cabinet.

4.4 Refrigerant Compressor and Component Replacement:

4.4.1 Four (4) refrigerant compressor replacement kits shall be provided. Each kit shall consist of one compressor matching the existing 6DT3-300E-TSK Copeland 30hp units or equivalent, one drier filter, one oil separator, and one compressor power contactor.

4.4.2 One (1) of the four kits, including required refrigerant, shall be installed in the R-508B loop of modular plenum of government choice (subject to change, location: MP-A). The remaining kits shall be packaged and nitrogen purged for long term storage at LEAD.

4.4.3 The compressor crankcase oil shall be replaced on all (12) MP units. The return line oil filters with isolation valves shall be installed on all twelve (12) MP unit compressor systems.

4.4.4 These modifications shall ensure that the climate test chamber is capable of achieving a thermal test range of +120° to -35° F as well as fluctuate (ramp) ambient temperature in either direction across the 70° baseline without operational interruption or MP fault.

4.4.5 All six (6) MPs shall be tested for performance to ensure thermal test range is met and upgrades operate with existing equipment.

4.4.6 All six (6) MPs shall be verified for full functionality within OEM specifications. To meet specifications described throughout section 4.2, the contractor shall provide and install new OEM parts as required. The contractor shall provide the Depot Technical Point of Contact (TPOC) with a complete listing of OEM part numbers installed prior to contract closeout (LEAD input in Plant Maintenance Module of CAMS). Upon contract closeout and acceptance by LEAD, no other action shall be required by the contractor. The climate chamber and related systems components as part of this upgrade (i.e. HVAC, refrigeration, humidification, hardware, software, control systems, etc.) shall be fully operational upon completion of upgrades. The new upgraded components of the climate chamber shall be fully operational upon government acceptance.

4.5 Logic Control Specifications:

4.5.1 Logic control functions currently operate for all six cascade conditioning systems. After upgrades and verification of each cascade conditioning system, logic control functions shall be updated to maintain operability and control of the climate test chamber including the new MP.

4.5.2 Logic controls shall be updated to operate all seven (7) cascade conditioning systems independently. Logic controls per conditioning system shall enable control of ambient temperatures within the climate test chamber by one (1) degree increments, with an accuracy of plus or minus (+/-) 2.5° F. Each MP shall have the ability to have a different temperature set point to change from NORMAL to CASCADE mode.

4.5.3.1 Contractor shall update MP control system functionality to provide energy-saving features and improve longevity of the cascade conditioning systems. All MPs shall be capable of transitioning between CASCADE and HVAC mode automatically and without operator intervention.

4.5.3.2 Contractor shall modify all MP cooling loops to utilize a passively controlled hot gas bypass system. This functionality will enable the MPs to operate in the most efficient mode, cascade or single stage HVAC, while controlling the rate of temperature change (ramp rate) within the climate test chamber in accordance with maximum temperature change rate of 20° F per 30 minutes, ranging between +120° and -35° F.

4.5.4.1 The contractor shall determine which temperature set points each MP or combination of MPs should change modes (normal or HVAC to cascade mode). MPs changeover from HVAC mode to CASCADE shall have a default temperature setpoint determined/tested and programmed by the contractor. MP operation in staging shall be utilized to make full use of the HVAC mode and only utilize cascade when necessary during any ramp or manually input temperature to maximize cooling efficiency of temperature chamber.

4.5.4.2 The contractor shall add additional provisions and controls for the one (1) new MP unit to operate identical to and in unison with the six (6) existing units. This addition will also require contractor to create updates to the existing "temperature profiles" to incorporate operation of the one (1) new MP unit (7 MPs able to be controlled total).

4.5.5 The contractor shall test, verify updates are complete, and current Logic controls are compatible and fully functional. In the event new logic setting do not meet government need, the ability to revert must be available. All current user events will remain available on the logic controller. All events will be available to the chamber operator for selection at their discretion.

4.6 (OPTIONAL) Portable Resistive Load Bank

4.6.1 The contractor shall provide a Portable Resistive Load Bank similar to the type used to provide an electrical load for power generation equipment. The load shall be adjustable, in steps, from 0 kW to the maximum rated full load capacity range. The load shall be air cooled via internal fans. The load is portable via equipment mounted casters for indoor use. The load bank shall have the following minimum characteristics:

-Maximum Rated Full Load Capacity Range: 110 kW to 150 kW -Input Voltage: 460 to 480 VAC, 3 Phase, 60 Hz -Amperes per Phase: 180 A (max) -Power Factor: 1.0 -Load Type: Resistive -Duty: Continuous -Load Step Resolution: 10 kW (max) -Load Bank Cooling: Air cooled, horizontal flow -Ambient Operating Air Temperature: -35 F to 120 F (thermal chamber test range) -Controls: Emergency Stop, Load ON/OFF, Load Step Controls, Load Fault Protection -Load Monitors: Phase Current, Voltage, and Power Metering.

4.6.2 Power Disconnect to Load Bank Cable Assembly: The load bank shall be supplied with one power cable with mating connectors for the load bank and a receptacle plug for connection on the power supply end. The cable assembly shall be a minimum length of 25 feet. The power cable assembly shall be rated to match the load bank current, voltage, and chamber test temperature range. Contractor shall field verify all connections, sizes and appropriate ratings before purchase, fabrication, installation, connections, and performance testing.

4.7 (OPTIONAL) Wall Mounted Circulation Fans

4.7.1 The contractor shall provide and install a completely new circuit breaker, conduit, wiring circuit with power from the gear room low voltage panel to four (4) new wall mounted circulation fans. The contractor shall provide and install four (4) wall mounted oscillating fans providing one air volume change per minute (circulation) to enhance overall air distribution and minimize hot spots due to localized live loads. These fans shall operate independently of condition systems blowers and can be used instead of conditioning systems in certain conditions to conserve energy.

The fans shall be mounted to the wall (not crane columns, unless mounting does not compromise integrity of columns) in the four corners of the chamber, rated to -40° F, and not obstruct crane movement.

4.8 If the contractor, while carrying out the work described in this purchase description, discovers that they require additional support or expertise to meet the above listed requirements for either hardware or software systems, then the contractor is responsible for attaining that additional support or expertise. The contractor shall continue to complete, on schedule, all upgrades and updates until the climate chamber is tested and validated by LEAD personnel, meeting OEM specifications. The contractor shall do so at no additional cost to the government.

5.0 STANDARD PRODUCTS:

5.1 The equipment shall be new and regularly advertised products in order to provide a constant source of replacement parts and technical assistance. For example, the one (1) new MP from section 4.2 shall have identical major replacement parts (i.e. compressor, etc.) as the six (6) existing MP units for part commonality.

5.2 The equipment shall be the manufacturer’s standard product that is marketed, sold, and used for applications that are similar in all essential ways to how LEAD will be using it. Equipment shall be designed to suit location, application requirements, and related modifications of otherwise standard replacement parts.

5.3 The unit shall include the manufacturer’s best standard commercial warranty on all parts and equipment. Any standard manufacturer warranties for the unit’s sub-components that exceed the terms of the overall system warranty shall be included.

6.0 DRAWINGS AND MANUALS: The manufacturer’s design drawings shall be submitted electronically to the TPOC for approval within 60 calendar days of contract award. Approval shall be provided within 10 business days after receipt by LEAD engineering personnel. One electronic and two hard-copy sets of operator instruction manuals, maintenance service manuals and parts listing manuals shall be provided for the new MP unit. One electronic copy and two hard-copy sets of manufacturer’s electrical schematics shall also be provided. One electronic and two hard-copy sets of suggested spare parts or high wear items shall be provided by contractor.

These manuals and schematics shall be written in the English language.

7.0 WARRANTY: A standard commercial warranty or a one year commercial warranty, whichever is larger, shall be furnished with the new upgraded components/systems in its entirety. The warranty period begins when the LEAD Contracting Officer provides official confirmation that the system has satisfied all operational provisions of the contract.

8.0 PRESERVATION, PACKAGING AND DELIVERY: The contractor shall utilize standard commercial methods for preservation and packaging appropriate for the return conditioning systems components and acceptable to commercial carriers. As a minimum, all areas susceptible to damage from exposure to the elements shall be preserved and/or packed to prevent damage.

9.0 INSPECTION AND ACCEPTANCE:

9.1 The climate test chamber and associated equipment shall be examined for design, construction, materials, components, and workmanship to determine compliance with the contract and this specification. Any deviation from LEAD’s production requirements or those listed in this specification shall be cause for rejection.

9.1.2 The unit shall be safe to use without extensive training or secondary safety measures.

9.1.3 The unit shall operate effectively and be maintained in accordance with the written requirements. If the contractor is unable to meet any requirement without additional support or expertise, then the contractor shall provide any and all additional support or expertise and shall do so at no additional cost to the government.

9.2 The contractor shall be responsible for developing test procedures to demonstrate compliance with the requirements of this specification. All test procedures shall be submitted to and approved by Depot Technical Point of Contact (TPOC) prior to the start of testing. To support the testing procedures, LEAD will provide material for use during the performance tests with the exception of load banks which shall be provided by contractor (reference Section 4.6).

9.2.1 The contractor shall demonstrate that all user events function and meet all design parameters. Any operational or test specification errors/failures shall be corrected and documented in writing before acceptance.

9.3 Once all upgrades and updates, to include any replacements for functional verification, are completed, the climate test chamber shall cycle through three (3) test iterations with actual or simulated loads, with zero correctional interruptions prior to acceptance. These three cycles will include a normal soak, or validation cycle, at hot and cold extremes. The new load bank will be utilized during all testing to simulate live load. To provide the full 110 Kw live load, it will be shared with a dead load mass/actual radar (Government provided) and 150 Kw supplemental load bank, and the contractor shall be monitor and adjust load bank output accordingly during validation testing. All test iterations shall consist of the chamber following the test parameter and successfully cycling between HVAC and cascade mode without operator intervention as temperatures dictate. During one of three low temperature profiles, the chamber shall function with one legacy MP de-energized to simulate a degraded capacity and show capability of the new additional MP unit energized. Another separate test shall be conducted with no heat load or asset inside, the chamber shall achieve and hold -40°F for one hour.

9.4 (OPTIONAL) At the discretion of the government, and within 60 calendar days of downtime installation, if simulated loads are used to cycle the climate chamber through three test iterations, an actual radar asset may be provided to cycle through a fourth validation test with zero correctional interruptions prior to acceptance in order to fully demonstrate fault-free system capabilities.

9.5 The thresholds for acceptance of all changes to the climate test chamber are the internal temperature extremes of +120°F and -35°F, maintained for up to 4 hours regardless of external dry/wet bulb temperature or humidity. The internal temperature of the chamber shall be verified to track the programmed profiles in Appendix A.

9.6 See Appendix A for Thermal Stress Test profile.

9.7 LEAD remains responsible for all untouched-by-the-contractor, legacy components of the climate test chamber unless reasonable proof can be presented that the contractor’s changes to the climate test chamber have damaged existing components and equipment. If legacy equipment fails, the contractor shall continue supporting LEAD until upgrades are completed the climate test chamber is brought to full operational capabilities.

9.8 COMMENCEMENT OF INSTALLATION: The contractor shall begin procurement/fabrication of materials after approval of design drawings upon contract award. However, no Climate Chamber downtime installation work (exceptions: site survey/concrete pad construction/ staging/delivery/ preparation work) shall begin until approximately 26-52 calendar weeks after contract award. The tentative downtime installation schedule, subject to change, are the following dates: May 1, 2018 - June 30, 2018.

- NO DOWNTIME INSTALLATION WORK SHALL OCCUR AT THE SITE UNITL NOTICE TO

PROCEED IS PROVIDED BY THE GOVERNMENT, THROUGH THE CONTRACTING OFFICER.

- THE CONTRACTOR SHALL COMMENCE DOWNTIME INSTALLATION WORK EXACTLY 60

CALENDAR DAYS AFTER THE NOTICE TO PROCEED HAS BEEN GRANTED BY THE

GOVERNMENT.

- THE COMPLETION OF THE DOWNTIME INSTALLATION AND ACCEPTANCE BY THE

GOVERNMENT SHALL NOT EXCEED 60 CALENDAR DAYS FROM THE START OF DOWNTIME

INSTALLATION WORK (REFERENCE SECTION 3.1).

- THE CONTRACTOR SHALL NOT CREATE OTHER CONDITIONS FOR PATRIOT RADAR

ENVIRONMENTAL TEST CHAMBER SITE DOWNTIME (PREVENTING AREA

ACCESS/REGULAR CLIMATE CHAMBER OPERATION) LONGER THAN THE 60 CALENDAR

DAYS ALLOTTED FOR DOWNTIME INSTALLATION.

- WITHIN 10 BUSINESS DAYS AFTER NOTICE TO PROCEED, THE CONTRACTOR SHALL

PROVIDE A FIRM SCHEDULE FOR 60 CALENDAR DAYS OF DOWNTIME INSTALLATION.

- THROUGH THE CONTRACTING OFFICER, THE GOVERNMENT RESERVES THE RIGHT TO

TERMINATE THE NOTICE TO PROCEED 14 CALENDAR DAYS PRIOR TO COMMENCEMENT

BY THE CONTRACTOR DUE TO UNKNOWN GOVERNMENT DELAYS.

Where necessary, the contractor shall make provisions for secure and weather protected storage of materials/equipment at the site (outside of the climate chamber and not impacting production) with location coordinated through LEAD TPOC. Only through approval from contracting officer (Reference Section 1.2.1), the contractor shall allow for flexibility for delivery/staging work, phased work, intermittent/preparation work, multiple crews, 2nd/3rd shift work, 24 hours, weekend work, or other plans.

10.0 APPLICABLE DOCUMENTS: The following documents form a part of this specification and may be obtained from the sources listed:

AMERICAN CONFERENCE OF GOVERNMENTAL INDUSTRIAL HYGIENISTS (ACGIH) –

Industrial Ventilation Guide Copies may be obtained at www.acgih.org

DOD TEST METHOD STANDARD

MIL-STD-202 Electric and Electrical Component Parts Obtainable at www.landandmaritime.dla.mil/programs/milspec

DOD/US Army Test and Evaluation Command Publication MIL-STD-810 Environmental Engineering Considerations and Laboratory Tests Obtainable at www.atec.army.mil/standardization.html

INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO)

ISO 17025:2005 – General requirements for competence testing and calibration laboratories Copies may be obtained at www.ihs.com

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 70 – National Electrical Code Copies may be obtained at http://www.nfpa.org

OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA)

29 CFR 1910.132 Personal Protective Equipment 29 CFR 1910.103 Flammable Liquids Copies may be obtained at http://www.osha.gov

SHEET METAL AND AIR CONDITIONING CONTRACTOR’S NATIONAL ASSOCIATION

(SMACNA)

– Industrial Duct Construction Standards Copies may be obtained at www.smacna.org

LETTERKENNY ARMY DEPOT (LEAD)

Reg. LEAD 385-1 Safety and Occupational Health Program Reg. LEAD 385-4 Security, Maintenance of Order Copies may be obtained from LEAD Directorate of Contracting

The following have been deleted:

QUESTIONS AND ANSWERS

REVISED PURCHASE DESCRIPTION

(End of Summary of Changes)