Atch 2_Specifications.pdf

USDA AMS COTTON AND TOBACCO PROGRAM

USDA COTTON CLASSING LABORATORY

MAJOR EQUIPMENT REPLACEMENT

MEMPHIS, TENNESSEE

April 2023

12639523R0014, Attachment 2

04/2023 DESIGN PROFESSIONAL RESPONSIBILITY DPR - 1

DESIGN PROFESSIONAL RESPONSIBILITY

The specification sections authenticated by my seal and signature are limited to the following:

DIVISION 22 - PLUMBING

22 00 00 Piping and Accessories

DIVISION 23 - MECHANICAL

23 00 00 General Provisions for Mechanical and Electrical 23 30 00 Piping and Accessories 23 32 00 Steam and Condensate Return System 23 35 00 Chilled Water Piping 23 38 00 Condensing Water Piping System 23 50 00 Hangers and Supports 23 55 00 Vibration Isolation 23 60 00 Insulation 23 70 00 Equipment 23 75 00 Air Compressor System Installation 23 80 00 Testing, Adjusting and Balancing Mechanical Systems 23 90 00 Temperature Regulation w/Point Charts 23 95 00 Building Automation System

DIVISION 26 - ELECTRICAL

26 01 00 Basic Electrical Requirements 26 05 18 Wires and Cables 26 05 25 Grounding and Bonding 26 05 32 Raceways 26 05 34 Boxes 26 05 52 Electrical Identification 26 24 16 Panelboards 26 27 26 Wiring Devices 26 28 13 Fuses 26 28 15 Safety Switches

Fanning, Fanning & Associates, Inc.

Texas Registered Engineering Firm F-00294

2555 74th Street Lubbock, Texas 79423

Tel 806.745.2533 Fax 806.745.3596 www.fanningfanning.com

04/24/2023

FFA22025 PLUMBING SYSTEMS 22 00 00 - 1

04/2023

SECTION 22 00 00 - PLUMBING SYSTEMS

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes: Plumbing Systems

1.2 SUBMITTALS

A. Submit manufacturer's data on all materials.

1.3 SCOPE

A. This section of the specifications requires the furnishing and installation of all equipment, labor, materials, transportation, tools and appliances and in performing all operations in connection with the installation of the plumbing systems.

PART 2 - PRODUCTS

2.1 MATERIALS: Refer to Section "Piping and Accessories".

A. Interior Sanitary Soil, Waste and Drain Lines: PVC-DWV Plastic pipe and fittings conforming to ASTM D-2665-68, assembled with solvent cement conforming to ASTM D-2564-67.

B. Sanitary Vent Lines: PVC-DWV Plastic pipe and fittings conforming to ASTM D-2665-68, assembled with solvent cement conforming to ASTM D-2564-67.

C. Domestic Water Lines (Hot, Cold and Recirculating): All water lines underground or under slabs on grade shall be of Type K hard drawn copper tubing. All interior water lines shall be Type L hard drawn copper tubing. Where connections are made between copper tubing and cast-iron pipe, use adapters. Copper tubing shall be assembled using solder-joint fittings. No lead solder will be permitted. All flanges shall be 150 psig rated.

D. Domestic Water (Hot, Cold and Recirculating): For above grade lines, at the Contractor’s option, use Press-Connect fittings equal to NIBCO Press or Viega ProPress copper and cast copper alloy. Fittings shall conform to ASME B16.51, NSF 61 and NSF 372. EPDM elastomeric sealing elements. All connections shall bear full insertion marks on the tubing.

Press Connect fitting shall have Leak Detection as standard feature to detect unpressed fittings during the testing process. There shall be no mixing of manufacturers. The manufacturer’s installation instructions shall be strictly adhered to. Special attention shall be given to the required two step pressure test. Initial test for unpressed fitting detection per manufacturer’s installation manual. Then full pressure test to 1.5 times design pressure.

Installers shall be credentialed by manufacturer. Approved manufacturers: NIBCO, Viega

E. Gas Lines: Schedule 40 black steel with 150 lbs. banded malleable iron fittings.

F. Gas Lines: At Contractor’s option NIBCO Bench PressG or Viega MegaPressG steel fittings may be used: Fittings shall conform to ANSI LC-4/CSA 6.32. HNBR elastomeric sealing elements. All connections shall bear full insertion marks on the tubing. Press Connect fitting shall have Leak Detection as standard feature to detect unpressed fittings during the testing process. There shall be no mixing of manufacturers. The manufacturer’s installation instructions shall be strictly adhered to. Special attention shall be given to the

FFA22025 PLUMBING SYSTEMS 22 00 00 - 2

required two step pressure test. Initial test for unpressed fitting detection per manufacturer’s installation manual. Then full pressure test to 1.5 times design pressure. Installers shall be credentialed by manufacturer. Approved manufacturers: NIBCO, Viega

G. Drain Lines: Type L copper with solder joint fittings.

H. Compressed Air Lines: Type L hard copper with solder joint fittings. At Contractor’s option, use Press-Connect fittings equal to NIBCO PressG copper alloy. Fittings shall be certified ANSI LC4/CSA 6.32, ICC-ES PMG 1502, IAPMO/UPC LC-4. HNBR elastomeric sealing elements. All connections shall bear full insertion marks on the tubing.

Press Connect fitting shall have Leak Detection as standard feature to detect unpressed fittings during the testing process. There shall be no mixing of manufacturers. The manufacturer’s installation instructions shall be strictly adhered to. Special attention shall be given to the required two step pressure test. Initial test for unpressed fitting detection per manufacturer’s installation manual. Then full pressure test to 1.5 times design pressure.

Installers shall be credentialed by NIBCO. Approved manufacturer: NIBCO

I. Miscellaneous Lines: Such as pilot lines, bleed lines, control and sampling lines, equalizer lines, drains from air vents and relief vents, etc. shall be fabricated of the materials used in the systems to which they are connected.

PART 3 - EXECUTION

3.1 ISOLATION VALVES

A. The water supplies to each group of fixtures shall have an isolating valve in each line serving the riser. These isolation valves shall be installed at an accessible location. Where these valves are not accessible thru removable ceilings or otherwise, provide access doors in the ceiling or chase.

3.2 INSTALLATION OF PIPING SYSTEMS

A. Refer to PIPING AND ACCESSORIES for requirements for installing pipes. In addition, the following specifications shall apply.

1. Drain Lines and Sanitary Waste: Grade down toward the sewer connection at a uniform slope of ¼-inch per foot to serve individual fixtures or not less than 1/8-inch per foot to serve multiple stacks or outlets. Slope shall be greater where possible and shall never be less than required to produce a flow velocity of 2 feet per second.

2. Vents: Grade up to the vent thru the roof. Terminate not less than 10 inches above the roof.

3. Water Lines:

a. Grade to established low points and provide valved drains to completely drain the system.

b. Secure and anchor piping in plumbing chases such that there is no movement of flush valves, stops, etc. at fixture rough-ins.

4. Gas Lines:

a. All gas piping shall run exposed unless specifically detailed otherwise on the drawings, with special venting provisions.

b. A gas “drip pocket” or “dirt leg” shall consist of a nipple and screwed cap on the bottom of the riser and shall be installed at connections to equipment, at the low point of the system and at the natural gas line entrance to the building (with the “gas cock” shut off valve). Install as required by the International Fuel Gas Code.

FFA22025 PLUMBING SYSTEMS 22 00 00 - 3

c. Provide a gas cock, union and gas pressure regulator at each connection to a gas consuming appliance.

d. All gas piping on the roof shall be supported on Miro Pillow Block pipe stands, Model 02 for 2 inches and below, Model 24-R for piping 2-inch to 4-inch and Model 48-R for 5-inch and above. Pans shall be mopped to roof.

Pipes shall be strapped to supports with galvanized strap.

5. Identification: For other than black steel pipe, exposed gas piping shall be identified by a yellow label marked "Gas" in black letters. The marking shall be spaced at intervals not exceeding 5 feet (1524 mm). The marking shall not be required on pipe located in the same room as the appliances served. All tubing carrying medium-pressure gas shall be marked with a label at the beginning and end of each tubing section.

3.3 EXISTING WASTE AND DRAIN LINE

A. Special care and precaution shall be used where existing waste or drain lines are to be opened. The following procedure shall be adhered to at all times when opening existing waste or drain lines: Before opening, prepare a solution of one part household bleach to nine parts water. At every inlet to the affected piping run, add 2 gallons of the solution to flush out the piping. Any worker who has cuts or open skin breaks shall be prevented from working with the waste or drain piping. Workers shall wear approved face shields, gloves, aprons, boots, etc. for protection. In addition, existing piping shall be thoroughly washed inside and out with bleach solution prior to handling by unprotected persons. The safety director or Owner's representative shall be notified prior to commencing work on any existing waste or drain lines.

3.4 TESTING

A. Test all pipes before they are concealed in furrings or chases, insulated, painted, or otherwise covered up or rendered inaccessible. Accomplish testing by sections of lines or systems, as required by conditions during construction. Clean all piping and equipment before testing.

B. Domestic Water Lines Interior: Test for 6 hours at 150 psig. There shall be no leaks whatsoever.

C. Interior Soil, Waste and Vent Lines: Drainage and venting system piping shall be tested with water before the fixtures are installed. Water test shall be applied to the drainage and venting system either in its entirety or in sections. If the entire system is tested, all openings in the pipes shall be tightly closed except the highest opening and the system shall be filled with water to the point of overflow. If the system is tested in sections, each opening except the highest opening of the section under test shall be tightly plugged, and each section shall be filled with water and tested with at least a 10 foot head of water. The water shall be kept in the system, or in the portion under test, for at least 30 minutes before the inspection starts. The system shall then be tight at all joints. Water shall not drop more than 1 inch in 8 hours.

D. Gas Lines: Test with 50 psig air pressure for 24 hours with no pressure drop (except for temperature correction). If any drop occurs, soap test all joints, correct leaks and retest.

END OF SECTION

FFA22025 GENERAL PROVISIONS FOR MECHANICAL AND ELECTRICAL 23 00 00 - 1

SECTION 23 00 00 - GENERAL PROVISIONS FOR MECHANICAL AND ELECTRICAL

PART 1 - GENERAL

1.1 SPECIAL NOTE

A. The Mechanical and Electrical plans, Existing Structural Plans and Specifications, including the supplements issued thereto, Information to Bidders, and other pertinent documents issued by the Engineer and Government, are a part of these specifications and the accompanying mechanical and electrical plans, and shall be complied with in every respect. All the above is included herewith, will be issued separately or is on file at the Engineer's office, and shall be examined by all bidders. Failure to comply shall not relieve the Contractor of responsibility or be used as a basis for additional compensation due to omission of drawings. Where the Supplementary General Conditions conflict with the General Conditions, the Supplementary General Conditions shall govern.

1.2 CHECKING DOCUMENTS

A. The drawings and the specifications are numbered consecutively. The Contractor shall check the drawings and specifications thoroughly and shall notify the Engineer of any discrepancies or omissions of sheets or pages. Upon notification, the Engineer will promptly provide the Contractor with any missing portions of the drawings or specifications. No discrepancies or omissions of sheets or pages of the contract documents will relieve the Contractor of his duty to provide all work required by the complete contract documents.

1.3 GENERAL

A. In general, the lines and ducts to be installed by the various trades under these specifications shall be run as indicated, as specified herein, as required by particular conditions at the site, and as required to conform to the generally accepted standards as to complete the work in a neat and satisfactorily workable manner. The following is a general outline concerning the running of various lines and ducts and is to be excepted where the drawings or conditions at the building necessitate deviating from these standards.

B. All piping, conduit and ductwork for the mechanical and electrical trades shall be concealed in chases in finished areas, except as indicated on the drawings. Horizontal lines run in areas that have ceilings shall be run concealed in those ceilings, unless otherwise specifically indicated or directed.

C. Piping, ductwork, conduits and raceways may be run exposed in machinery and equipment spaces, where serving as connections to motors and equipment items in finished rooms where exposed connections are required, and elsewhere as indicated on the drawings or required.

D. All conduits in any space where they are exposed shall run parallel with the building walls.

They shall enter the concealed areas perpendicular with the walls, ceilings or floors.

Fittings shall be used where necessary to comply with this requirement.

E. The Contractor shall thoroughly acquaint himself with the details of the construction and finishes before submitting his bid as no allowances will be made because of the Contractor's unfamiliarity with these details. Place all inserts in masonry walls while they

FFA22025 GENERAL PROVISIONS FOR MECHANICAL AND ELECTRICAL 23 00 00 - 2

are under construction. All concealed lines shall be installed as required by the pace of the general construction to precede that general construction.

F. The mechanical and electrical plans do not give exact details as to elevations of lines and ducts, exact locations, etc., and do not show all the offsets, control lines, pilot lines and other installation details. The Contractor shall carefully lay out his work at the site to conform to the architectural and structural conditions, to provide proper grading of lines, to avoid all obstruction, to conform to details of installation supplied by the manufacturers of the equipment to be installed, and thereby to provide an integrated, satisfactorily operating installation.

G. The electrical plans show diagrammatically the locations of the various electrical outlets and apparatus and the method of circuiting and controlling them. Exact locations of these outlets and apparatus shall be determined by reference to the general plans and to all detail drawings, equipment drawings, roughing-in drawings, etc., by measurements at the building, and in cooperation with other sections, and in all cases shall be subject to the approval of the Engineer. The Engineer reserves the right to make any reasonable change in location of any outlet or apparatus before installation (within 10 feet of location shown on drawings) or after installation if an obvious conflict exists, without additional cost to the Owner.

H. The mechanical plans do not give exact locations of outlets, fixtures, equipment items, etc.

The exact location of each item shall be determined by reference to the general plans and to all detail drawings, equipment drawings, roughing-in drawings, etc., by measurements at the building, and in cooperation with other sections. Minor relocations necessitated by the conditions at the site or as directed by the Engineer shall be made without any additional cost accruing to the Owner.

I. The Contractor shall be responsible for the proper fitting of his material and apparatus into the space. Should the particular equipment which any bidder proposes to install require other space conditions than those indicated on the drawings, he shall arrange for such space with the Engineer before submitting his bid. Should changes become necessary on account of failure to comply with this clause, the Contractor shall make such necessary changes at his (the Contractor's) own expense.

J. The Contractor shall submit working scale drawings of all his apparatus and equipment which in any way varies from these specifications and plans, which shall be checked by the Engineer before the work is started, and interferences with the structural conditions shall be corrected by the Contractor before the work proceeds.

K. Order of precedence shall be observed in laying out the pipe, ductwork, material, and conduit in order to fit the material into the space above the ceiling and in the chases and walls. The following order shall govern:

1. Items affecting the visual appearance of the inside of the building such as lighting fixtures, diffusers, grilles, outlets, panelboards, etc. Coordinate all items to avoid conflicts at the site.

2. Lines requiring grade to function such as sewers.

3. Large ducts and pipes with critical clearances.

4. Conduit, water lines, and other lines whose routing is not critical and whose function would not be impaired by bends and offsets.

L. Piping, ducts, and conduits serving outlets on items of equipment shall be run in the most appropriate manner. Where the equipment has built-in chases, the lines shall be contained therein. Where the equipment is of the open type, the lines shall be run as close as possible to the underside of the top and in a neat and inconspicuous manner.

FFA22025 GENERAL PROVISIONS FOR MECHANICAL AND ELECTRICAL 23 00 00 - 3

M. Exceptions and inconsistencies in plans and specifications shall be brought to the Engineer's attention before the contract is signed. Otherwise, the Contractor shall be responsible for any and all changes and additions that may be necessary to accommodate his particular apparatus, material, or equipment.

N. The Contractor shall distinctly understand that the work described herein and shown on the accompanying drawings shall result in a finished and working job, and any item required to accomplish this intent shall be included whether specifically mentioned or not.

O. Each bidder shall examine the plans and specifications for the General Construction. If these documents show any item requiring work under Divisions 22, 23, or 26 and that work is not indicated on the respective "M", "P" and "E" drawings, he shall notify the Engineer in sufficient time to clarify before bidding. If no notification is received, the Contractor is assumed to require no clarification, and shall install the work as indicated on the General Plans in accordance with the specifications.

1.4 DIMENSIONS

A. Before ordering any material or doing any work, the Contractor shall verify all dimensions, including elevations, and shall be responsible for the correctness of the same. No extra charge or compensation will be allowed on account of differences between actual dimensions and measurements indicated on the drawings. Any difference which may be found shall be submitted to the Engineer for consideration before proceeding with the work.

1.5 INSPECTION OF SITE

A. The accompanying plans do not indicate completely the existing mechanical and electrical installations. The bidders for the work under these sections of the specifications shall inspect the existing installations and thoroughly acquaint themselves with conditions to be met and the work to be accomplished in removing and modifying the existing work, and in installing the new work in the present building and underground serving to and from that structure. Failure to comply with this shall not constitute grounds for any additional payments in connection with removing or modifying any part of the existing installations and/or installing any new work.

1.6 ELECTRICAL WIRING

A. All electric wiring of every character, for power supply, for communications, etc. will be done under Division 26 of these specifications. The Contractor for each section shall erect all his motors in place ready for connections. The Contractor, under Division 26, shall mount all the starters and controls, furnishing the supporting structures and any required outlet boxes. The Temperature Control Contractor shall include in his bid and shall furnish all wiring required for control, including line (120v/1phase/60hz) voltage wiring and low voltage control wiring. All wiring shall be in conduit. Include extending line voltage electrical to a space in the nearest electrical panel (or as shown on the drawings) and providing breakers as required to terminate all power required to make temperature controls functional.

B. Every electrical current consuming device furnished as a part of this project or furnished by the Owner and installed in this project, shall be completely wired up under Division 26, and is a part of this contract. Verification of exact location, method of connection, number and size of wires required, voltage requirements, and phase requirements is the responsibility of

FFA22025 GENERAL PROVISIONS FOR MECHANICAL AND ELECTRICAL 23 00 00 - 4

the Contractor under Division 26. If conflicts occur between the drawings and the actual requirements, actual requirements shall govern. The contractor shall coordinate the voltage of all motors and any associated variable frequency drives with the Division 26 contractor prior to ordering the devices.

C. Where no temperature control scope is shown in the documents, it shall be the responsibility of the Division 26 contractor to provide wiring, conduit and switches for the manual control of equipment, unless specifically noted to the contrary on the drawings and specifications.

1.7 MOTORS AND CONTROLS

A. All motors furnished under any of the several sections of these specifications shall be of recognized manufacture, of adequate capacity for the loads involved and wound for the current characteristics shown on the electrical drawings. All motors shall conform to the standards of manufacture and performance of the National Electrical Manufacturers' Association as shown in their latest publications. They shall further be listed by Underwriters Laboratories.

B. Unless otherwise noted, the Contractor under Divisions 22 and 23 shall furnish each motor with a starter and all controls of the types specified or required. These starters shall be of the totally enclosed type, of capacity rating within the required limits of the motors which they are to serve, shall be suitable for the motor current characteristics and shall provide solid state overload protection, providing protection against single-phase events. All starters shall be standard of manufacture and performance of the National Electrical Manufacturers' Association. They further shall be listed by Underwriters Laboratories.

Provide overload protection in each phase wire.

1.8 PROGRESS OF WORK

A. The Contractor shall keep himself fully informed as to the progress of the work and do his work at the proper time without waiting for notification from the Engineer or Owner.

1.9 FACTORY STARTUP OF EQUIPMENT

A. The Contractor shall provide factory startup or factory authorized startup for certain equipment furnished for this project. Equipment requiring factory startup shall include the following: Chillers, Boilers, Cooling Tower, and Air Compressors. Contractor shall submit the manufacturer’s startup checklist substantiating that the equipment has been started and is operating in accordance with the manufacturer’s instructions. The startup shall be performed by a person in the direct employ of the manufacturer or by an authorized agent.

If the startup is performed by an authorized agent, the startup report shall be accompanied by a letter from the manufacturer identifying the agent as one who is certified to perform factory startup on the equipment furnished. As a minimum, submit the startup checklist with any comments or deficiencies noted during startup. Submit the report with certification letter (as required) to the Commissioning Agent for inclusion in the commissioning documentation. If there is no Commissioning Agent for the project, submit the startup reports as a submittal package to the Engineer.

FFA22025 GENERAL PROVISIONS FOR MECHANICAL AND ELECTRICAL 23 00 00 - 5

1.10 MANUFACTURER'S DIRECTIONS

A. All manufactured articles shall be applied, installed and handled as recommended by the manufacturer. All items of equipment provided shall be piped in strict accordance with its manufacturer’s written installation instructions. Note that details on the drawings may be for equipment that is ultimately not furnished for the project and is for bidding purposes.

Exact configuration shall match manufacturer’s installation instructions.

1.11 MATERIALS AND WORKMANSHIP

A. All materials shall be new unless otherwise specified and of the quality specified. Materials shall be free from defects. All materials of a type for which the Underwriters Laboratories, Inc. have established a standard shall be listed by the Underwriters Laboratories, Inc. and shall bear their label.

B. Wherever the make of material or apparatus required is not definitely specified, the Contractor shall submit a sample to the Engineer before proceeding.

C. The Engineer reserves the right to call for samples of any item of material offered in substitution, together with a sample of the specified material, when, in the Engineer's opinion, the quality of the material and/or the appearance is involved and it is deemed that an evaluation of the two materials may be better made by visual inspection. This shall be limited to lighting fixtures, wiring devices, plumbing brass, grilles, registers, ceiling outlets and similar items and shall not be applicable to major manufacturers' items of equipment.

D. The Contractor shall be responsible for transportation of his materials to and on the job and shall be responsible for the storage and protection of these materials and work until the final acceptance of the job.

E. The Contractor shall furnish all necessary scaffolding, tackle, tools and appurtenances of all kinds, and all labor required for the safe and expeditious execution of his contract.

F. The workmanship shall in all respects be of the highest grade and all construction shall be done according to the best practice of the trade.

1.12 SUBSTITUTION OF MATERIALS

A. Where a definite material or only one manufacturer's name is mentioned in these specifications, it has been done in order to establish a standard. The product of the particular manufacturer mentioned is of satisfactory construction and any substitution must be of quality as good as or better than the named article. No substitution shall be made without review by the Engineer, who will be the sole judge of equality.

B. Within 30 days of being awarded the Contract for any section or sections of the work under this heading, the Contractor shall submit for approval a complete list of the materials he proposes to use. This list shall give manufacturers' names and designations corresponding to each and every item and the submission shall be accompanied by complete descriptive literature and/or any supplementary data, drawings, etc., necessary to give full and complete details. If the material is not submitted within 30 days of the contract signing, the Contractor shall furnish the specified materials.

C. Should a substitution be accepted under the provisions of the conditions of these specifications, and should this substitute prove to be defective or otherwise unsatisfactory for the service for which it is intended within the guarantee period, the Contractor who originally requested the substitution shall replace the substitute material with the specified material.

FFA22025 GENERAL PROVISIONS FOR MECHANICAL AND ELECTRICAL 23 00 00 - 6

1.13 BID FORMS AND BID PACKAGES

A. The USDA AMS Cotton and Tobacco Division wishes to enter into a contract with a single contractor to strategically replace major items of equipment, including chiller(s), plate frame heat exchanger, boiler(s) and cooling towers under the scope of this project. The decision on which items of equipment, if any, will be replaced will be based on several factors, including availability of funding. Accordingly, the project has been configured into bid packages that describe the potential equipment replacements. The decision on which items of equipment will be replaced also will depend on life cycle cost analysis, including total installed first cost, efficiency (life cycle utility cost), and project delivery schedule.

USDA Cotton Classing laboratories operate on a strict season schedule, and down-time and interruptions in the operation of the Classing Labs is highly undesirable. Therefore, the decision of which equipment manufacturer is selected, and which model is selected is dependent on project delivery schedule. In Memphis, TN, the classing season begins October 1st, generally.

B. The intent of the Bid Package configuration is to allow one, two or three chillers to be replaced, a single heat exchanger to be replaced, one, two or three steam boilers to be replaced, one, two, or three cooling towers to be replaced, and one or two compressed air systems to be replaced. Furthermore, the intent of the bid packages is to collect information relative to the equipment replacements that will allow decisions to be made based on delivery schedule, installation costs and life cycle costs.

C. Bid forms are attached on the pages that follow. Each bid form is for the complete installation of a single item of equipment, including (in some cases) structural analysis and a rigging plan, piping, valve and insulation installation, electrical work, temperature controls work, and any and all items required to completely install, test, and commission the equipment. All bid packages shall provide equipment that complies with the capacity requirements on the drawings, piping configurations, and control sequences shown on the drawings. Generally, all items of equipment shall be furnished with BACnet compliant microprocessor controls that will connect directly into the Seimens control system existing in the building, originally installed by EK Automation of Hernando, MS.

D. The current situation is that only one chiller is currently functional, Chiller 3. The highest priority of the USDA is to replace Chiller 1 with a functional chiller prior to the beginning of the 2023 cotton classing season. The selection of the first replacement chiller will primarily depend on the delivery schedule. Additional chillers may be replaced during the classing season. For the chillers, Bid Package 1 describes the chiller replacement(s).

Options for equipment that meets the capacity schedule are sought on the bid forms. It is expected that major equipment manufacturers will submit multiple selections optimizing the installation of their brand of equipment. Lead times will be critical for the first chiller to be replaced, since it would be advantageous for a replacement chiller prior to classing season. Lead time is therefore the primary selection factor for Bid Package 1-A,B,C,D-1.

Subsequent chiller replacement(s) will be determined based on life cycle cost. Equipment considered will include water cooled models from Carrer, Daikin, Trane, and York. Each bidder is encouraged to obtain multiple selections from each of these manufacturers, and fill out the bid form indicating total installed cost, efficiency, and lead time. Attached with the bid documents include a Microsoft Excel file that shows how the life cycle cost analysis will be performed, along with electronic copies of each and every bid package form. There should be one unique bid package form for each manufacturer and model number and chiller to be replaced. It is therefore possible that a single bidder might submit sixteen possible alternatives for each of three chillers to be replaced.

FFA22025 GENERAL PROVISIONS FOR MECHANICAL AND ELECTRICAL 23 00 00 - 7

E. Bid Package 1 Description and Requirements – Chillers:

1. The chiller shall meet the capacity requirements shown on the drawings.

2. Piping configuration shall be as shown on the piping diagrams, and will depend on the pass arrangement of each proposed chiller. New isolation valves are required.

3. Total First Cost (Bid Amount) shall include the total installed cost including all equipment, materials, tools, labor, controls, structural engineering, one-year warranty, electrical and all other costs to the government for that chiller. This Bid Amount will be the basis of the “first cost” in the life cycle cost analysis.

4. Note that line items are included for discounts or adds if more than one chiller is replaced. It is anticipated that the cost to replace two chillers at the same time may cost less than twice the cost of replacing one machine, thus the modification. If all three chillers are replaced together, similar line items are included for discounts or adds – modification of the cost and time for the first replacement. These lines should be completed on all bid forms. Costs shall be presented in a written, and numeric form on the bid form.

5. For each discrete chiller proposed, fill in the bid form for actual capacity provided, refrigerant proposed, Integrated Part Load Value (IPLV) in KW/ton, and the minimum condenser water temperature that the chiller will continuously accept for safe operation. Note that some refrigerants that are currently available are slated for phase-out due to global warming potential. Refrigerants selected shall include those that are not currently scheduled for phaseout prior to 2032 (R454B, 513A, etc.)

Multiple options from the same manufacturer are encouraged. For example, selections for centrifugal, centrifugal with magnetic bearing, helirotor screw, scroll and other technologies are encouraged to be submitted. It is acknowledged that each manufacturer may not have all possible options in their product offering, so various manufacturers are expected to have multiple options. Manufacturers are encouraged to submit short lead time alternatives, and ones that may result in lowest life-cycle cost.

6. A checklist of what should be included in the bid package submission, and what should be included in the bid cost is included on each bid form. Carefully review requirements and comply with the checklists, as bids that do not comply will be rejected as non-responsive. Full submittal showing capacity, performance, efficiency (IPLV), weights, dimensions, refrigerant, electrical requirements, and sound power levels shall be included for each chiller offered.

F. Bid Package 2 Description and Requirements – Plate Frame Heat Exchanger (PHX):

1. The PHX shall meet the capacity requirements shown on the drawings. Piping configuration shall be as shown on the piping diagrams and will include new isolation valves.

2. Total First Cost (Bid Amount) shall include the total installed cost including all equipment, materials, tools, labor, controls, one-year warranty, and all other costs to the government for that PHX. This Bid Amount will be the basis of the “first cost” in the life cycle cost analysis.

3. For each discrete PHX proposed, fill in the bid form for actual capacity provided, and weights and dimensions. Include certified approach and hot side leaving temperatures at the entering condition, cold side criteria, etc. scheduled on the drawings.

4. A checklist of what should be included in the bid package submission, and what should be included in the bid cost is included on each bid form. Carefully review requirements and comply with the checklists, as bids that do not comply will be

FFA22025 GENERAL PROVISIONS FOR MECHANICAL AND ELECTRICAL 23 00 00 - 8

rejected as non-responsive. Full submittal showing capacity, performance, approach temperature, weights, dimensions, shall be included for each PHX offered.

G. Bid Package 3 Description and Requirements – Boilers:

1. The boiler shall meet the capacity requirements shown on the drawings.

2. Piping configuration shall be as shown on the piping diagrams and will include new isolation valves.

3. Total First Cost (Bid Amount) shall include the total installed cost including all equipment, materials, tools, labor, controls, structural engineering, one-year warranty, electrical and all other costs to the government for that boiler. This Bid Amount will be the basis of the “first cost” in the life cycle cost analysis.

4. Note that line items are included for discounts or adds if more than one boiler is replaced. It is anticipated that the cost to replace two boilers at the same time may cost less than twice the cost of replacing one boiler, thus the modification. If all three boilers are replaced together, similar line items are included for discounts or adds – modification of the cost and time for the first and second replacements. These lines should be completed on all bid forms. Costs shall be presented in a written, and numeric form on the bid form.

5. For each discrete boiler proposed, fill in the bid form for actual capacity provided, and AFUE Efficiency percentage. Multiple options from the same manufacturer are encouraged. For example, selections for water tube, fire tube, bent tube, flex tube and other technologies are encouraged to be submitted. It is acknowledged that each manufacturer may not have all possible options in their product offering, so various manufacturers are expected to have multiple options. Manufacturers are encouraged to submit short lead time alternatives, and ones that may result in lowest life-cycle cost.

6. A checklist of what should be included in the bid package submission, and what should be included in the bid cost is included on each bid form. Carefully review requirements and comply with the checklists, as bids that do not comply will be rejected as non-responsive. Full submittal showing capacity, performance, efficiency (AFUE) weights, dimensions, and electrical requirements shall be included for each boiler offered.

H. Bid Package 4 Description and Requirements – Cooling Towers:

1. The cooling tower shall meet the capacity requirements shown on the drawings.

2. Piping configuration shall be as shown on the piping diagrams and will include new isolation valves. In addition, all existing valves serving the cooling tower in question shall be moved inside the building so that the valves and actuators are not exposed to the weather.

3. Total First Cost (Bid Amount) shall include the total installed cost including all equipment, materials, tools, labor, controls, structural engineering, one-year warranty, electrical and all other costs to the government for that cooling tower. This Bid Amount will be the basis of the “first cost” in the selection criteria.

4. Note that line items are included for discounts or adds if more than one cooling tower is replaced. It is anticipated that the cost to replace two cooling towers at the same time may cost less than twice the cost of replacing one tower, thus the modification.

If all three cooling are replaced together, similar line items are included for discounts or adds – modification of the cost and time for the first and second replacements.

These lines should be completed on all bid forms. Costs shall be presented in a written, and numeric form on the bid form.

FFA22025 GENERAL PROVISIONS FOR MECHANICAL AND ELECTRICAL 23 00 00 - 9

5. A checklist of what should be included in the bid package submission, and what should be included in the bid cost is included on each bid form. Carefully review requirements and comply with the checklists, as bids that do not comply will be rejected as non-responsive. Full submittal showing capacity, performance, efficiency CWS temperature, dimensions, and electrical requirements shall be included for each boiler offered.

I. Bid Package 5 Description and Requirements – Air Compressors with Refrigerated Air Dryers, separators, and filters specified on the drawings.

1. The air compressor package shall meet the capacity requirements shown on the drawings.

2. Piping configuration shall be as shown on the piping diagrams and will include new isolation valves.

3. Total First Cost (Bid Amount) shall include the total installed cost including all equipment, materials, tools, labor, controls, one-year warranty, electrical and all other costs to the government for that air compressor. This Bid Amount will be the basis of the “first cost” in the selection criteria.

4. Note that line items are included for discounts or adds if more than one air compressor is replaced. It is anticipated that the cost to replace two air compressor systems at the same time may cost less than twice the cost of replacing one air compressor system, thus the modification. If both compressed air systems are replaced together, similar line items are included for discounts or adds – modification of the cost and time for the first and second replacements. These lines should be completed on all bid forms. Costs shall be presented in a written, and numeric form on the bid form.

5. For each discrete air compressor proposed, fill in the bid form for actual capacity provided. Multiple options from the same manufacturer are encouraged. For example, selections for variable speed and constant speed air compressors are encouraged to be submitted. It is acknowledged that each manufacturer may not have all possible options in their product offering, so various manufacturers are expected to have multiple options. Manufacturers are encouraged to submit short lead time alternatives, and ones that may result in lowest life-cycle cost. Most of the USDA AMS Cotton and Tobacco air compressor systems are of Quincy manufacturer, so one option from each bidder should include Quincy.

6. A checklist of what should be included in the bid package submission, and what should be included in the bid cost is included on each bid form. Carefully review requirements and comply with the checklists, as bids that do not comply will be rejected as non-responsive. Full submittal showing capacity, performance, efficiency CWS temperature, dimensions, and electrical requirements shall be included for each boiler offered.

1.14 MEMPHIS USDA COTTON CLASSING LAB MAINTENANCE CHECKLIST FOR

MONTHLY REPORT

A. Compressors: Strictly as recommended by the compressor provided.

1.15 BID FORMS: Utilize the attached bid forms and submit for each bid package. Multiple submissions corresponding to various equipment manufacturers are encouraged. Refer to instructions in paragraphs above.

FFA22025 GENERAL PROVISIONS FOR MECHANICAL AND ELECTRICAL 23 00 00 - 10

USDA Memphis Major Equipment Replacement - Bid Package 1 Bid Form Chiller Replacement - Chiller 1 Duplicate this form as many times as necessary (one per each manufacturer's chiller option) and submit.

Note: Bidders shall complete each and every blank affirmatively on this form in order for the bid to be responsive.

Bid of (Contractor Name)

Contractor Address

Contractor Contact Person (Name)

Contractor Contact Person (Telephone )

Contractor Contact Person (Email)

Bid Amount - US Dollars, Written Dollars

Bid Amount - US Dollars Numerical Dollars

Project Duration - Consecutive Calendar Days Days

Option Designation (1A-1, 1B-1, 1C-1, 1D-1, etc.)

Chiller Manufacturer for this Option:

Chiller Model Number for this Option:

Chiller Capacity, net tons at scheduled conditions: tons

Refrigerant Proposed:

ARI 550 IPLV, KW/ton KW/ton

Minimum Continuous Condenser Water Temperature for this chiller, Deg. F. Deg. F.

Attached Certifications Check List - Y/N if provided - Attached to this Bid Form Chiller submittal - ARI Certified Capacity and IPLV Performance at scheduled conditions (Y/N) Chiller submittal - Weight, Dimensions (Y/N) Chiller submittal - Sound Profile dbA in 8 octave bands (Y/N)

Chiller submittal - Electrical Data - MCA, MOP, FLA etc. (Y/N)

Bid Amount Includes the following (Y/N):

Structural Analysis and Rigging Plan (Y/N)

Labor, materials, overhead, profit for complete scope of installation of Chiller 1, including controls integration (Y/N)

Factory Startup of Chiller 1 (Y/N) TAB report for Chilled and condenser water flows (Y/N)

All Contract Requirements met (Y/N)

Seal of the Contractor

Signature of the Contractor's Representative, Date

FFA22025 GENERAL PROVISIONS FOR MECHANICAL AND ELECTRICAL 23 00 00 - 11

USDA Memphis Major Equipment Replacement - Bid Package 1 Bid Form

Chiller Replacement - Chiller 2 Duplicate this form as many times as necessary (one per each manufacturer's chiller option) and submit.

Note: Bidders shall complete each and every blank affirmatively on this form in order for the bid to be responsive.

Bid of (Contractor Name)

Contractor Address

Contractor Contact Person (Name)

Contractor Contact Person (Telephone )

Contractor Contact Person (Email)

Bid Amount - US Dollars, Written Dollars

Bid Amount - US Dollars Numerical Dollars

Bid Amount - Add or Deduct for simultaneous award of Bid Package 1-A,B,C,D-1, Written Add/Deduct Dollars Bid Amount - Add or Deduct for simultaneous award of Bid Package 1-A,B,C,D-1, Numerical Add/Deduct Dollars

Additional Project Duration - Additional Consecutive Calendar Days if awarded simutaneous to Chiller 1 Replacement (Additive) Days

Option Designation (1A-2, 1B-2, 1C-2, 1D-2, etc.)

Chiller Manufacturer for this Option:

Chiller Model Number for this Option:

Chiller Capacity, net tons at scheduled conditions: tons

Refrigerant Proposed:

ARI 550 IPLV, KW/ton KW/ton

Minimum Continuous Condenser Water Temperature for this chiller, Deg. F. Deg. F.

Attached Certifications Check List - Y/N if provided

- Attached to this Bid Form Chiller submittal - ARI Certified Capacity and IPLV Performance at scheduled conditions (Y/N) Chiller submittal - Weight, Dimensions (Y/N)

Chiller submittal - Sound Profile dbA in 8 octave bands (Y/N) Chiller submittal - Electrical Data - MCA, MOP, FLA etc. (Y/N)

Bid Amount Includes the following (Y/N):

Structural Analysis and Rigging Plan (Y/N)

Labor, materials, overhead, profit for complete scope of installation of Chiller 2, including controls integration (Y/N) Factory Startup of Chiller 2 (Y/N) TAB report for Chilled and condenser water flows (Y/N) All Contract Requirements met (Y/N)

FFA22025 GENERAL PROVISIONS FOR MECHANICAL AND ELECTRICAL 23 00 00 - 12

USDA Memphis Major Equipment Replacement - Bid Package 1 Bid Form

Chiller Replacement - Chiller 3 Duplicate this form as many times as necessary (one per each manufacturer's chiller option) and submit.

Note: Bidders shall complete each and every blank affirmatively on this form in order for the bid to be responsive.

Bid of (Contractor Name)

Contractor Address

Contractor Contact Person (Name)

Contractor Contact Person (Telephone )

Contractor Contact Person (Email)

Bid Amount - US Dollars, Written Dollars

Bid Amount - US Dollars Numerical Dollars

Bid Amount - Add or Deduct for simultaneous award of Bid Package 1-A,B,C,D-1&2, Written Dollars Bid Amount - Add or Deduct for simultaneous award of Bid Package 1-A,B,C,D-1&2, Numerical Dollars Additional Project Duration - Additional Consecutive Calendar Days if awarded simutaneous Days

Option Designation (1A-3, 1B-3, 1C-3, 1D-3, etc.)

Chiller Manufacturer for this Option:

Chiller Model Number for this Option:

Chiller Capacity, net tons at scheduled conditions: tons

Refrigerant Proposed:

ARI 550 IPLV, KW/ton KW/ton

Minimum Continuous Condenser Water Temperature for this chiller, Deg. F. Deg. F.

Attached Certifications Check List - Y/N if provided

- Attached to this Bid Form Chiller submittal - ARI Certified Capacity and IPLV Performance at scheduled conditions (Y/N) Chiller submittal - Weight, Dimensions (Y/N)

Chiller submittal - Sound Profile dbA in 8 octave bands (Y/N) Chiller submittal - Electrical Data - MCA, MOP, FLA etc. (Y/N)

Bid Amount Includes the following (Y/N):

Structural Analysis and Rigging Plan (Y/N) Labor, materials, overhead, profit for complete scope of installation of Chiller 2, including controls integration (Y/N) Factory Startup of Chiller 3 (Y/N) TAB report for Chilled and condenser water flows (Y/N) All Contract Requirements met (Y/N)

FFA22025 GENERAL PROVISIONS FOR MECHANICAL AND ELECTRICAL 23 00 00 - 13

USDA Memphis Major Equipment Replacement - Bid Package 2 Bid Form Plate Heat Exchanger Replacement (PHX) Duplicate this form as many times as necessary (one per each manufacturer's PHX option) and submit.

Note: Bidders shall complete each and every blank affirmatively on this form in order for the bid to be responsive.

Bid of (Contractor Name)

Contractor Address

Contractor Contact Person (Name)

Contractor Contact Person (Telephone )

Contractor Contact Person (Email)

Bid Amount - US Dollars, Written Dollars

Bid Amount - US Dollars Numerical Dollars

Project Duration - Consecutive Calendar Days Days

Option Designation (Bid Package 2)

PHX Manufacturer for this Option:

PHX Model Number for this Option:

PHX Capacity, net tons at scheduled conditions: tons

Attached Certifications Check List - Y/N if provided - Attached to this Bid Form PHX submittal - ARI Certified Capacity at scheduled conditions (Y/N) PHX submittal - Weight, Dimensions (Y/N)

Bid Amount Includes the following (Y/N):

Structural Analysis and Rigging Plan (Y/N)

Labor, materials, overhead, profit for complete scope of installation of PHX, including controls integration (Y/N)

Factory Startup of PHX (Y/N) TAB report for Chilled and condenser water flows (Y/N)

All Contract Requirements met (Y/N)

FFA22025 GENERAL PROVISIONS FOR MECHANICAL AND ELECTRICAL 23 00 00 - 14

USDA Memphis Major Equipment Replacement - Bid Package 3 Bid Form Steam Boiler Replacement - Boiler 1 Duplicate this form as many times as necessary (one per each manufacturer's Boiler option) and submit.

Note: Bidders shall complete each and every blank affirmatively on this form in order for the bid to be responsive.

Bid of (Contractor Name)

Contractor Address

Contractor Contact Person (Name)

Contractor Contact Person (Telephone )

Contractor Contact Person (Email)

Bid Amount - US Dollars, Written Dollars

Bid Amount - US Dollars Numerical Dollars

Project Duration - Consecutive Calendar Days Days

Option Designation (3A-1, 3B-1, 3C-1, 3D-1, etc.)

Boiler Manufacturer for this Option:

Boiler Model Number for this Option:

Boiler Capacity, net MBH at scheduled conditions: MBH

AFUE…