Bldg 5 Specifications.pdf

United States Department of Agriculture Agricultural Research Service

Final Design Submittal

Specifications Task Order No. AG-5114-D-08-0034 Contract No. AG-3K15-53-3K15-4-1500 BED Project No. 0413-07-20

Building 5 – Install Waste Water Pumping & Piping System At Waste Treatment Addition USDA-ARS, Ames, IA

BY: ARCHITECT MECHANICAL / ELECTRICAL ENGINEER

Bailey Edward architecture KJWW Engineering Consultants

35 E Wacker Drive 2882 106th Street Suite 2800 Des Moines, Iowa 50322

Chicago, IL 60601 515-334-9906 312-440-2300

DATE: November 5, 2008

USDA - Task Order No. AG-5114-D-07-0015 November 4, 2008 Waste Water Treatment Building 5 Facility Addition USDA-ARS-NADC, Ames, IA Table of Contents - 1

TABLE OF CONTENTS

DIVISION

SECTION

TITLE

PAGES

THRU

15 MECHANICAL

15010 Basic Mechanical Requirements 15010 – 14 15140 Supports and Anchors 15140 – 10 15162 Sanitary Sewerage Pumps 15162 – 02 15170 Motors 15170 – 03 15190 Mechanical Identification 15190 – 03 15245 Vibration Isolation 15245 – 03 15410 Plumbing Piping 15410 – 13 15430 Plumbing Specialties 15430 – 01 15952 Controls 15952 – 18 15980 Instrumentation 15980 – 03 15990 Testing, Adjusting and Balancing 15990 – 05

16 ELECTRICAL

16010 Basic Electrical Requirements 16010 – 09 16111 Conduit 16111 – 07 16120 Wire And Cable 16120 – 05 16130 Boxes 16130 – 04 16190 Supporting Devices 16190 – 02 16440 Disconnect Switches 16440 – 02

END TABLE OF CONTENTS

USDA-ARS-NADC, Ames, IA 15010 - 1

DIVISION 15 - MECHANICAL

Section 15010 - Basic Mechanical Requirements

PART 1 - GENERAL

1.1 SECTION INCLUDES

A. Requirements applicable to all Division 15 Sections. Also refer to Division 1 - General Requirements.

B. All materials and installation methods shall conform to the applicable standards, guidelines and codes referenced in the specification section.

1.2 SCOPE OF WORK

A. This Specification and the associated drawings govern the furnishing, installing, testing and placing into satisfactory operation the Mechanical Systems.

B. Contractor shall provide all new materials indicated on the drawings and/or in these specifications, and all items required to make his portion of the Mechanical Work a finished and working system.

C. All work will be awarded under a single General Contract. The division of work listed below is for the Contractor's convenience and lists normal breakdown of the work.

D. Scope of Work:

1. Plumbing Work shall include, but is not necessarily limited to:

a. Furnish and install all items listed in the Plumbing Material List.

b. Furnish and install a complete sanitary sewer and vent system.

c. Furnish and install sanitary sewage pumps.

2. Control Work shall include, but is not necessarily limited to:

a. Extend existing control system as specified in Section 15952.

b. Furnish automatic control valves and dampers for installation by others.

3. Testing, Adjusting, and Balancing Work shall include, but is not necessarily limited to:

a. Furnish complete testing, adjusting, and balancing as specified in Section 15990, including, but not limited to plumbing systems and verification of control systems.

1.3 DEFINITIONS

A. “CO” refers to “Contracting Officer.”

B. “COR” refers to “Contracting Officer’s Representative.”

USDA-ARS-NADC, Ames, IA 15010 - 2

1.4 OWNER FURNISHED PRODUCTS

A. The Owner will supply the following items for installation and/or connection by This Contractor:

1. Storage/Mixing Tanks

B. This Contractor shall make all mechanical system connections shown on the drawings or as required for fully functional units.

C. This Contractor is responsible for all damage to Owner furnished equipment caused during installation.

1.5 WORK SEQUENCE

A. All work that will produce excessive noise or interference with normal building operations, as determined by the Owner, shall be scheduled with the Owner. It may be necessary to schedule such work during unoccupied hours. The Owner reserves the right to determine when restricted construction hours will be required.

1.6 DEFINITIONS

A. Definitions:

1. Motor Control Wiring: The wiring associated with the remote operation of the magnetic coils of magnetic motor starters or relays, or the wiring that permits direct cycling of motors by means of devices in series with the motor power wiring. In the latter case the devices are usually single phase and are usually connected to the motor power wiring through a manual motor starter having "Manual-Off-Auto" provisions.

2. Control devices such as start-stop push buttons, thermostats, pressure switches, flow switches, relays, etc., generally represent the types of equipment associated with motor control wiring.

3. Motor control wiring is single phase and usually 120 volts. In some instances, the voltage will be the same as the motor power wiring. Generally, where the motor power wiring exceeds 120 volts, a control transformer is used to give a control voltage of 120 volts.

4. Temperature Control Wiring: The wiring associated with the operation of a motorized damper, solenoid valve or motorized valve, etc., either modulating or two-position, as opposed to wiring which directly powers or controls a motor used to drive equipment such as fans, pumps, etc.

5. This wiring will be from a 120 volt source and may continue as 120 volt, or be reduced in voltage (24 volt) in which case a control transformer shall be furnished as part of the temperature control wiring.

USDA-ARS-NADC, Ames, IA 15010 - 3

6. Control Motor: An electric device used to operate dampers, valves, etc. It may be two-position or modulating. Conventional characteristics of such a motor are 24 volts, 60 cycles, 1 phase, although other voltages may be encountered.

USDA-ARS-NADC, Ames, IA 15010 - 4

1.7 QUALITY ASSURANCE

A. Contractor’s Responsibility Prior to Submitting Pricing Data:

1. The Contractor is responsible for constructing complete and operating systems.

The Contractor acknowledges and understands that the Contract Documents are a two-dimensional representation of a three-dimensional object, subject to human interpretation. This representation may include imperfect data, interpreted codes, utility guidelines, three-dimensional conflicts, and required field coordination items. Such deficiencies can be corrected when identified prior to ordering material and starting installation. The Contractor agrees to carefully study and compare the individual Contract Documents and report at once in writing to the CO/COR/Design Team any deficiencies the Contractor may discover.

2. The Contractor shall resolve all reported deficiencies with the CO/COR/Architect/Engineer prior to awarding any subcontracts, ordering material, or starting any work with the Contractor’s own employees.

B. Compliance with Codes, Laws, Ordinances:

1. Conform to all requirements of the City of Ames, Iowa’s Codes, Laws, Ordinances and other regulations having jurisdiction.

2. Conform to all published standards of the USDA.

3. Conform to all State Codes.

4. If there is a discrepancy between the codes and regulations and these specifications, the CO/COR/Engineer shall determine the method or equipment used.

5. If the Contractor notes, at the time of bidding, any parts of the drawings or specifications that do not comply with the codes or regulations, he shall inform the CO/COR/Architect/Engineer in writing, requesting a clarification.

6. If there is a discrepancy between manufacturer's recommendations and these specifications, the manufacturer's recommendations shall govern.

7. All rotating shafts and/or equipment shall be completely guarded from all contact.

Partial guards and/or guards that do not meet all applicable OSHA standards are not acceptable. Contractor is responsible for providing this guarding if it is not provided with the equipment supplied.

C. Permits, Fees, Taxes, Inspections:

1. Procure all applicable permits and licenses.

2. Abide by all laws, regulations, ordinances, and other rules of the State or Political Subdivision where the work is done, or as required by any duly constituted public authority.

USDA-ARS-NADC, Ames, IA 15010 - 5

3. Pay all charges for permits or licenses.

4. Where applicable, all fixtures, equipment and materials shall be approved or listed by Underwriter’s Laboratories, Inc.

D. Examination of Drawings:

1. Where used in mechanical documents, the word "furnish" shall mean supply for use, the word "install" shall mean connect complete and ready for operation, and the word "provide" shall mean to supply for use and connect complete and ready for operation.

a. Any item listed as furnished shall also be installed, unless otherwise noted.

b. Any item listed as installed shall also be furnished, unless otherwise noted.

E. Field Measurements:

1. Verify all pertinent dimensions at the job site before ordering any materials or fabricating any supports, pipes or ducts.

1.8 SUBMITTALS

A. Submittals shall be required for the following items, and for additional items where required elsewhere in the specifications or on the drawings.

1. Submittals list:

Submittal Item Referenced

Specification Section

a. Owner Training Agenda 15010

b. Plumbing Piping Systems and Valves 15410

c. Plumbing Material List Items Refer to drawings

d. Controls 15952

e. Testing, Adjusting, and Balancing 15990

B. In addition to the provisions of Division 1, the following provisions are required:

1. Submittals shall include all fabrication, erection, layout, and setting drawings;

manufacturers' standard drawings; schedules; descriptive literature, catalogs and brochures; performance and test data; wiring and control diagrams; and all other drawings and descriptive data of materials of construction as may be required to show that the materials, equipment or systems and the location thereof conform to the requirements of the contract documents.

2. The Contractor shall submit ten (10) copies of each shop drawing for review by the CO/COR/Architect/Engineer BEFORE releasing any equipment for manufacture or shipment.

USDA-ARS-NADC, Ames, IA 15010 - 6

3. Shop drawings which are larger than 11"x 17" or are plan size layout or erection drawings such as ductwork layout or sprinkler system drawings shall be submitted on reproducible media. Submit one reproducible and one print of each drawing or plan. All Contractor approval stamps shall be made on the reproducible.

4. The Contractor shall thoroughly review and approve all shop drawings before submitting them to the Architect/Engineer. CONTRACTOR’S APPROVAL

STAMP IS REQUIRED ON ALL SUBMITTALS. APPROVAL WILL INDICATE

THE CONTRACTOR'S REVIEW of all material and a COMPLETE UNDERSTANDING OF EXACTLY WHAT IS TO BE FURNISHED. Contractor shall clearly mark all deviations from the contract documents on all submittals. IF

DEVIATIONS ARE NOT MARKED BY THE CONTRACTOR, THEN THE ITEM

SHALL BE REQUIRED TO MEET ALL DRAWING AND SPECIFICATION

REQUIREMENTS.

5. The Contractor shall clearly mark each item with the same nomenclature applied on the drawings or in the specifications.

6. The Contractor shall clearly indicate the size, finish, material, etc.

7. Assemble and submit by specification section numbers for all submittals. All sets shall be identical and contain an index of the items enclosed with a general topic description on the cover.

8. Each set shall be bound in a manufacturer's folder or inside of a manila file folder.

9. Where more than one model is shown on a manufacturer's sheet, the Contractor shall clearly indicate exactly which item and which data is relevant to the work.

10. Failure to comply with the above shall be reason to resubmit all shop drawing submittals.

1.9 EQUIPMENT SUPPLIERS' INSPECTION

A. The following equipment shall not be placed in operation until a competent installation and service representative of the manufacturer has inspected the installation and certified that the equipment is properly installed, adjusted and lubricated; that preliminary operating instructions have been given; and that the equipment is ready for operation:

1. Pumps

B. Contractor shall arrange for and obtain supplier's on-site inspection(s) at proper time(s) to assure each phase of equipment installation and/or connection is in accordance with the manufacturer's instructions.

C. Submit copies of start-up reports to the CO/COR/Architect/Engineer and include copies of Owner’s Operation and Maintenance Manuals.

USDA-ARS-NADC, Ames, IA 15010 - 7

1.10 PRODUCT DELIVERY, STORAGE, HANDLING & MAINTENANCE

A. Exercise care in transporting and handling to avoid damage to materials. Store materials on the site to prevent damage. Keep materials clean, dry and free from harmful conditions. Immediately remove any materials that become wet or that are suspected of becoming contaminated with mold or other organisms.

B. Keep all bearings properly lubricated and all belts properly tensioned and aligned.

1.11 WARRANTY

A. Provide one-year warranty, unless otherwise noted, to the Owner for all fixtures, equipment, materials, and workmanship.

B. The warranty period for all work in this Division of the specifications shall commence on the date of final acceptance, unless a whole or partial system or any separate piece of equipment or component is put into use for the benefit of any party other than the installing contractor with prior written authorization. In this instance, the warranty period shall commence on the date when such whole system, partial system or separate piece of equipment or component is placed in operation and accepted in writing by the Owner.

C. Warranty requirements shall extend to correction, without cost to the Owner, of all Work found to be defective or nonconforming to the contract documents. The Contractor shall bear the cost of correcting all damage resulting from defects or nonconformance with contract documents.

1.12 MATERIAL SUBSTITUTION

A. Where several manufacturers’ names are given, the manufacturer for which a catalog number is given is the basis for job design and establishes the quality required.

B. Equivalent equipment manufactured by the other named manufacturers may be used.

Contractor shall ensure that all items submitted by these other manufacturers meet all requirements of the drawings and specifications, and fits in the allocated space.

C. Any material, article or equipment of other unnamed manufacturers which will adequately perform the services and duties imposed by the design and is of a quality equal to or better than the material, article or equipment identified by the drawings and specifications may be used if approval is secured in during review of shop drawings by A-E/COR/CO.

D. Contractor assumes all costs incurred as a result of using the offered material, article or equipment, on his part or on the part of other Contractors whose work is affected.

PART 2 - PRODUCTS

NOT APPLICABLE

USDA-ARS-NADC, Ames, IA 15010 - 8

PART 3 - EXECUTION

3.1 JOBSITE SAFETY

A. Neither the professional activities of the Engineer, nor the presence of the Engineer or his or her employee and subconsultants at a construction site, shall relieve the Contractor and other entity of their obligations, duties and responsibilities including, but not limited to, construction means, methods, sequence, techniques or procedures necessary for performing, superintending or coordinating all portions of the work of construction in accordance with the contract documents and any health or safety precautions required by any regulatory agencies. The Engineer and his or her personnel have no authority to exercise any control over any construction contractor or other entity or their employees in connection with their work or any health or safety precautions. The Contractor is solely responsible for jobsite safety. The Engineer and the Engineer’s consultants shall be indemnified and shall be made additional insureds under the Contractor’s general liability insurance policy.

3.2 EXCAVATION, FILL, BACKFILL, COMPACTION

A. General:

1. Prior to the commencement of any excavation or digging, the Contractor shall verify all underground utilities with the regional utility locator.

In Iowa, call Iowa One Call (800) 292-8989

Provide notice to the locator in the required time before excavations required by law.

2. The Contractor shall do all excavating, filling, backfilling and compacting associated with his work.

B. Excavation:

1. Make all excavations to accurate, solid, undisturbed earth, and to proper dimensions.

2. Where excavations are made in error below foundations, concrete of same strength as specified for the foundations or thoroughly compacted sand-gravel fill, as determined by the Architect/Engineer, shall be placed in such excess excavations. Place thoroughly compacted, clean, stable fill in excess excavations under slabs on grade, at the Contractor's expense.

3. Trim bottom and sides of excavations to grades required for foundations.

4. Protect excavations against frost and freezing.

5. Take care in excavating not to damage surrounding structures, equipment or buried pipe. Do not undermine footing or foundation.

6. Perform all trenching in a manner to prevent cave-ins and risk to workmen.

7. Where original surface is pavement or concrete, the surface shall be saw cut to provide clean edges and assist in the surface restoration.

USDA-ARS-NADC, Ames, IA 15010 - 9

8. Where satisfactory bearing soil for foundations is not found at the indicated levels, the Architect/Engineer or their representative shall be notified immediately, and no further work shall be done until further instructions are given by the Architect/Engineer or their representative.

C. Dewatering:

1. Contractor shall furnish, install, operate and remove all dewatering pumps and pipes needed to keep trenches and pits free of water.

D. Underground Obstructions:

1. Known underground piping, foundations, and other obstructions in the vicinity of construction are shown on the drawings. Use great care in making installations near underground obstruction.

2. If objects not shown on the drawings are encountered, remove, relocate, or perform extra work as directed by the Architect/Engineer.

E. Fill and Backfilling:

1. No rubbish or waste material is permitted for fill or backfill.

2. Provide all necessary sand for backfilling.

3. Dispose of the excess excavated earth as directed.

4. Backfill materials shall be suitable for required compaction, clean and free of perishable materials and stones greater than 4 inches in diameter. Water shall not be permitted to rise in unbackfilled trenches. No material shall be used for backfilling that contains frozen earth, debris or earth with a high void content.

5. Backfill all trenches and excavations immediately after installing pipes, or removal of forms, unless other protection is provided.

6. Around piers and isolated foundations and structures, backfill and fill shall be placed and consolidated simultaneously on all sides to prevent wedge action and displacement. Fill and backfill materials shall be spread in 6 inch uniform horizontal layers with each layer compacted separately to required density.

7. Lay all piping on a compacted bed of sand at least 3 inches deep. Backfill around pipes with sand, 6 inch layers, and compact each layer.

8. Use sand for backfill up to grade for all piping under slabs or paved areas. All other piping shall have sand backfill to 6 inches above the top of the pipe.

9. Place all backfill above the sand in uniform layers not exceeding 6 inches deep.

Each layer shall be placed, then carefully and uniformly tamped, to eliminate lateral or vertical displacement.

10. Where the fill and backfill will ultimately be under a building, floor or paving, each layer of fill shall be compacted to 95% of the maximum density determined by AASHTO Designation T-99 or ASTM Designation D-698. Moisture content of soil at time of compaction shall not exceed plus or minus 2% of optimum moisture content determined by AASHTO T-99 or ASTM D-698 test.

USDA-ARS-NADC, Ames, IA 15010 - 10

F. Surface Restoration:

1. Where trenches are cut through graded, planted or landscaped areas, the areas shall be restored to the original condition. Replace all planting removed or damaged to its original condition. A minimum of 6 inches of topsoil shall be applied where disturbed areas are to be seeded or sodded.

2. Concrete or asphalt type pavement, seal coat, rock, gravel or earth surfaces removed or damaged shall be replaced with comparable materials and restored to original condition.

3.3 PROJECT CLOSEOUT

A. The following paragraphs supplement the requirements of Division 1.

B. Final Jobsite Observation:

1. In order to prevent the Final Jobsite Observation from occurring too early, the Contractor is required to review the completion status of the project and certify that the job is ready for the final jobsite observation.

2. Attached to the end of this section is a typical list of items that represent the degree of job completeness expected prior to requesting a review.

3. Upon Contractor certification that the project is complete and ready for a final punch, the Contractor shall sign the attached certification and return it to the Architect/Engineer so that the final observation can be scheduled.

C. Before final payment is authorized, This Contractor must submit the following:

1. Operation and maintenance manuals with copies of approved shop drawings.

2. Record documents including marked-up drawings and specifications.

3. A report documenting the instructions given to the Owner's representatives complete with the number of hours spent in the instruction. The report shall bear the signature of an authorized agent of Contractor and shall be signed by the Owner's representatives.

3.4 OPERATION AND MAINTENANCE INSTRUCTIONS

A. Submit three properly indexed and bound copies, in ‘D’ Ring style notebooks, of the Operations and Maintenance Instructions to the Architect/Engineer. Make all corrections or additions required.

B. Manuals shall be completed and in the Owner's possession prior to Owner's acceptance and at least 10 days prior to instruction of operating personnel.

USDA-ARS-NADC, Ames, IA 15010 - 11

C. Operation and maintenance data shall consist of written instructions for the care, maintenance, and operation of all equipment and systems. Include all instruction books, cards, and manuals furnished with the equipment.

3.5 INSTRUCTING THE OWNER'S REPRESENTATIVES

A. Adequately instruct the Owner's designated representatives in the maintenance, care, and operation of all systems installed under this contract.

B. Provide verbal and written instructions to the Owner's representatives by FACTORY PERSONNEL in the care, maintenance, and operation of the equipment and systems.

C. The Owner has the option to video tape all instructions. Coordinate schedule of instructions to facilitate this recording.

D. The instructions shall include:

1. Explanation of all system flow diagrams.

2. Control system operation including calibration, adjustment and proper operating conditions of all sensors.

3. Maintenance of equipment.

4. Start-up procedures for all major equipment.

E. The Architect/Engineer shall be notified of the time and place instructions will be given to the Owner's representatives so he or his representative can attend if desired.

F. Minimum hours of instruction for each item shall be:

1. Temperature Controls - As defined in Specification Section 15952.

G. The Contractor shall prepare a detailed, written training agenda and submit it to the Architect/Engineer a minimum of two weeks prior to the formal training for approval. The written agenda shall include specific training points within the items described above. For example: how to adjust setpoints, troubleshooting, proper start-up, proper shut-down, seasonal changes, draining, venting, changing filters, changing belts, etc. Failure to provide and follow an approved training agenda may result in additional training required at the expense of the Contractor.

H. Operating Instructions:

1. Contractor is responsible for all instructions to the Owner's representatives for the mechanical and control systems.

3.6 SYSTEM COMMISSIONING

A. The mechanical systems shall be complete and operating. System start-up, testing, balancing, and satisfactory system performance is the responsibility of the Contractor.

This includes calibration and adjustments of all controls, noise level adjustments and final comfort adjustments as required.

B. All operating conditions and control sequences shall be tested during the start-up period.

Test all interlocks, safety shutdowns, controls, and alarms.

USDA-ARS-NADC, Ames, IA 15010 - 12

C. The Contractor, subcontractors, and equipment suppliers shall have skilled technicians to ensure that all systems perform properly.

3.7 RECORD DOCUMENTS

A.

Contractor shall maintain at the job site a separate and complete set of mechanical drawings and specifications on which he shall clearly and permanently mark in complete detail all changes made to the mechanical systems.

B. Mark drawings to indicate revisions to piping and ductwork, size and location, both exterior and interior; including locations of coils, dampers, other control devices, filters, and other units requiring periodic maintenance or repair; actual equipment locations, dimensioned from column lines; actual inverts and locations of underground piping;

concealed equipment, dimensioned from column lines; mains and branches of piping systems, with valves and control devices located and numbered, concealed unions located, and with items requiring maintenance located (e.g., traps, strainers, expansion compensators, tanks, etc.); Change Orders; concealed control system devices.

C. Refer to Specification Section 15952 for additional requirements for Temperature Control documents.

3.8 PAINTING

A. Paint all equipment that is marred or damaged prior to the Owner's acceptance. Paint and color shall match original equipment paint and shall be obtained from the equipment supplier if available.

B. Equipment in finished areas that will be painted to match the room decor will be painted by others. Should this Contractor install equipment in a finished area after the area has been painted, he shall have the equipment and all its supports, hangers, etc., painted to match the room decor.

C. Equipment cabinets, casings, covers, metal jackets, etc., in equipment rooms or concealed spaces, shall be furnished in standard or prime finish, free from scratches, abrasions, chips, etc.

D. Equipment in occupied spaces, or if standard to the unit, shall have a baked primer with baked enamel finish coat free from scratches, abrasions, chips, etc. If color option is specified or is standard to the unit, this Contractor shall, before ordering, verify with the Architect/Engineer his color preference and furnish this color.

E. Paint all equipment in unfinished areas such as boiler room, mechanical spaces, storage room, etc., furnished by this Contractor. Equipment furnished with a factory coat of paint and enamel need not be painted, provided the factory applied finish is not marred or

USDA-ARS-NADC, Ames, IA 15010 - 13 spattered. If so, equipment shall be refinished with the same paint as was factory applied.

F. Paint all outdoor uninsulated steel piping the color selected by Owner or Architect/Engineer.

G. After surfaces have been thoroughly cleaned and are free of oil, dirt, and other foreign matter; paint all pipes and equipment with the following:

1. Bare Metal Surfaces - Apply one coat of primer suitable for the metal being painted. Finish with two coats of Alkyd base enamel paint.

2. Insulated Surfaces - Paint insulation jackets with two coats of semi-gloss acrylic latex paint.

3. Color of paint shall be as directed by Owner.

3.9 ADJUST AND CLEAN

A. Thoroughly clean all equipment and systems prior to the Owner's final acceptance of the project. Clean all foreign paint, grease, oil, dirt, labels, stickers, and other foreign material from all equipment.

B. Clean all drain pans and areas where moisture is present. Immediately report any mold, biological growth, or water damage.

C. Remove all rubbish, debris, etc., accumulated during construction from the premises.

END OF SECTION 15010

USDA-ARS-NADC, Ames, IA 15010 - 14

READINESS CERTIFICATION PRIOR TO FINAL JOBSITE OBSERVATION

In order to prevent the final job observation from occurring too early, we require that the Contractor review the completion status of the project and, by copy of this document, certify that the job is indeed ready for the final job observation. The following is a typical list of items that represent the degree of job completeness expected prior to your requesting a final job observation.

1. All pumps operating and balanced.

2. All temperature control systems operating, programmed and calibrated.

3. Pipes labeled and valves tagged.

Accepted by:

Contractor _______________________________________________

By ___________________________________ Date ___________________

Upon Contractor certification that the project is complete and ready for a final job observation, we require the Contractor to sign this agreement and return it to the Engineer so that the final observation can be scheduled.

USDA-ARS-NADC, Ames, IA 15140 - 1

DIVISION 15 - MECHANICAL

Section 15140 - Supports and Anchors

PART 1 - GENERAL

1.1 SECTION INCLUDES

A. Hangers, Supports, and Associated Anchors.

B. Equipment Bases and Supports.

C. Sleeves and Seals.

D. Flashing and Sealing of Equipment and Pipe Stacks.

E. Cutting of Openings.

F. Escutcheon Plates and Trim.

1.2 WORK FURNISHED BUT INSTALLED UNDER OTHER SECTIONS

A. Furnish sleeves and hanger inserts to General Contractor for placement into formwork.

1.3 REFERENCES

A. ANSI/ASME B31.1 - Power Piping.

B. MSS SP-58 - Pipe Hangers and Supports - Materials, Design, and Manufacture.

C. MSS SP-69 - Pipe Hangers and Supports - Selection and Application.

D. MSS SP-89 - Pipe Hangers and Supports - Fabrication and Installation Practices.

E. NFPA 13 - Standard for the Installation of Sprinkler Systems.

F. NFPA 14 - Standard for the Installation of Standpipe and Hose Systems.

1.4 SUBMITTALS

A. Submit shop drawings and product data under provisions of Section 15010.

PART 2 - PRODUCTS

2.1 HANGER RODS

A. Hanger rods for single rod hangers shall conform to the following:

Pipe Size Hanger Rod Diameter Column #1 Column #2

2" and smaller 3/8" 3/8" 2-1/2"through 3-1/2" 1/2" 1/2" 4" and 5" 5/8" 1/2" 6" 3/4" 5/8" 8" through 12" 7/8" 3/4" 14" 1" 7/8" 16" and 18" 1" N/A 20" and 24" 1-1/4" N/A

Column #1: Cast iron, steel and glass pipe.

Column #2: Copper, plastic and fiberglass reinforced pipe.

B. Rods for double rod hangers may be reduced one size. Minimum rod diameter is 3/8 inches.

USDA-ARS-NADC, Ames, IA 15140 - 2

C. Hanger rods and accessories shall be black steel. Prime rusted areas after installation.

D. All hanger rods, nuts, washers, clevises, etc., in damp areas shall be electro-galvanized.

This applies to all areas.

2.2 PIPE HANGERS AND SUPPORTS

A. All pipe hangers, clamps, and supports shall conform to Manufacturers Standardization Society MSS-SP-69.

B. Oversize all hangers, clamps, and supports on insulated piping to allow insulation and jacket to pass through unbroken. This applies to both hot and cold pipes.

C. Ferrous hot piping 2-1/2 inches and larger shall have steel saddles tack welded to the pipe at each support at a depth not less than the specified insulation. Factory fabricated inserts may be used.

Acceptable Products:

Anvil - Fig. 160, 161, 162, 163, 164, 165

Cooper/B-Line - Fig. 3160, 3161, 3162, 3163, 3164, 3165 Erico - Model 630, 631, 632, 633, 634, 635 Nibco/Tolco - Fig. 260-1, 261-1 1/2, 262-2, 263-2 1/2, 264-3, 265-4

D. On all insulated piping, provide a semi-cylindrical metallic shield and fire resistant vapor barrier jacket.

E. As an alternative to separate pipe insulation insert and saddle, properly sized integral rigid insulation sections may be used for this application.

Acceptable Products:

Cooper/B-Line - Fig. B3380 through B3384

Pipe Shields - A1000, A2000 Erico - Model 124, 127

F. Support and laterally brace vertical pipes at every floor level in multi-story structures, but never at intervals over 15 feet. Support vertical pipes with riser clamps installed below hubs, couplings or lugs welded to the pipe.

Acceptable Products:

Anvil - Fig. CT121

Cooper/B-Line - Fig. B3373CT Erico - Model 510

Nibco/Tolco - Fig. 82

G. Place restrained neoprene mounts beneath vertical pipe riser clamps to prevent sweating of cold pipes. Insulate over mounts.

Acceptable Products: Mason RBA, RCA, or BR.

H. Hangers in direct contact with copper pipe shall be coated with plastic with appropriate temperature range. HYDRA-ZORB clamps are permitted for this application for bare pipes within their temperature limits of - 65°F to + 275°F.

USDA-ARS-NADC, Ames, IA 15140 - 3

I. Unless otherwise indicated, hangers shall be as follows:

1. Clevis Type:

Service: Bare Metal Pipe Rigid Plastic Pipe Insulated Cold Pipe Insulated Hot Pipe - 3 inches & Smaller

Acceptable Products: Bare Steel, Plastic or Insulated Pipe

Bare Copper Pipe

Anvil Fig. 260 Fig. CT65 Cooper/B-Line Fig. 3100 Fig. B3104CT Erico Model 400 Model 402 Nibco/Tolco Fig. 1 Fig. 81

2. Roller Type:

Service: Insulated Hot Pipe - 4 inches and Larger

Acceptable Products: 4" through 6" 8" and Above Anvil Fig. 181, 271 Fig. 171, 271 Cooper/B-Line Fig. 3110, 3117 Fig. 3114, 3117 Erico Model 610 Model 605 Nibco/Tolco Fig. 324, 327 Fig. 322, 327

3. Padded Clevis Type:

Service: Glass Pipe

Acceptable Products: Hangers Pads Anvil Fig. 260 Fig. 3195 Cooper/B-Line Fig. 3100 Erico Model 400 Nibco/Tolco Fig. 1

4. Continuous Channel with Clevis Type:

Service: Plastic Tubing Flexible Hose Soft Copper Tubing

Acceptable Products:

Cooper/B-Line - Fig. B3106, with Fig. B3106V

Erico - Model 104, with Model 104V Nibco/Tolco - Fig. 1V

USDA-ARS-NADC, Ames, IA 15140 - 4

5. Adjustable Swivel Ring Type:

Service: Bare Metal Pipe - 4 inches and Smaller

Acceptable Products: Bare Steel Pipe Bare Copper Pipe Anvil Fig. 69 Fig. CT69 Cooper/B-Line Fig. B3170NF Fig. B170CT Erico Model FCN Nibco/Tolco Fig. 200 Fig. 202

J. Support may be fabricated from U-Channel strut or similar shapes. Piping less than 4” in diameter shall be secured to strut with clamps of proper design and capacity as required to maintain spacing and alignment. Strut shall be independently supported from hanger drops or building structure. Size and support shall be per manufacturer’s installation requirements for structural support of piping. Clamps shall not interrupt piping insulation.

1. Strut used in mechanical spaces or otherwise dry areas shall have ASTM B633 electro-plated zinc finish.

2. Strut used in damp areas listed in hanger rods shall have ASTM A123 hot-dip galvanized finish applied after fabrication.

K. Unless otherwise indicated, pipe supports for use with struts shall be as follows:

1. Clamp Type:

Service: Bare Metal Pipe Rigid Plastic Pipe Insulated Cold Pipe Insulated Hot Pipe - 3 inches and smaller

a. Clamps in direct contact with copper pipe shall be plastic coated.

b. Pipes subject to expansion and contraction shall have clamps slightly oversized to allow limited pipe movement.

Acceptable Products: Bare Steel, Plastic or Insulated Pipe

Bare Copper Pipe

Unistrut Fig. P1100 or P2500 Cooper/B-Line Fig. B2000 or B2400 Fig. BVT Nibco/Tolco Fig. A-14 or 2STR

2. Roller Type:

Service: Insulated Hot Pipe - 4 inches and larger.

Acceptable Products: 4" through 6" 8" and Above Unistrut Fig. P2474 Fig. P2474-1 Cooper/B-Line Fig. B218 Fig. B219 Nibco/Tolco Fig. ROL-12 Fig. ROL-13

USDA-ARS-NADC, Ames, IA 15140 - 5

L. Unless otherwise shown, upper attachments for hanger rods or support struts shall be as follows:

1. Beam Clamps:

Acceptable Products:

Anvil Fig. 228, 292 Cooper/B-Line Fig. B3054 Erico Model 360 Nibco/Tolco Fig. 329

2. Concrete Inserts, Single Rod Galvanized:

Acceptable Products:

Anvil Fig. 282 Cooper/B-Line Fig. B3014 Erico Model 355 Nibco/Tolco Fig. 310

3. Concrete Inserts, Continuous Strip Galvanized:

Acceptable Products:

Unistrut Corp P3200 Series Cooper/B-Line Fig. B22-J Erico CONCT

4. Concrete Anchors: Fasten to concrete or masonry with inserts, expansion shields or self-tapping masonry screws. Toggle bolts may be used in concrete block. Do not fasten in masonry joints. Do not use explosive devices, wooden plugs or plastic inserts. Do not install fasteners to carry the load in tension unless absolutely necessary.

M. Wall supports shall be used where vertical height of structure exceeds minimum spacing requirements. Install wall supports at same spacing as hangers or strut supports along vertical length of pipe runs.

N. Welding:

1. Unless otherwise noted, hangers, clips, and auxiliary support steel may be welded in lieu of bolting, clamping, or riveting to the building structural frame.

Take adequate precautions during all welding operations for fire prevention and for protecting walls and ceilings from being damaged by smoke.

2.3 FOUNDATIONS, BASES, AND SUPPORTS

A. Basic Requirements:

1. Furnish and install foundations, bases, and supports (not specifically indicated on the Drawings or in the Specifications of either the General Construction or Mechanical work as provided by another Contractor) for mechanical equipment.

2. All concrete foundations, bases and supports, shall be reinforced. All steel bases and supports shall receive a prime coat of zinc chromate or red metal primer.

After completion of work, give steel supports a final coat of gray enamel.

USDA-ARS-NADC, Ames, IA 15140 - 6

B. Concrete Bases (Housekeeping Pads):

1. Unless shown otherwise on the drawings, concrete bases shall be nominal 4 inches thick and shall extend 3 inches on all sides of the equipment (6 inches larger than factory base).

2. Where a base is less than 12 inches from a wall, extend the base to the wall to prevent a “dirt-trap”.

3. Concrete materials and workmanship required for the Contractor's work shall be provided by him. Materials and workmanship shall conform to the applicable standards of the Portland Cement Association. Reinforce with 6” x 6”, W1.4- W1.4 welded wire fabric. Concrete shall withstand 3,000 pounds compression per square inch at twenty-eight days.

4. Equipment requiring bases is as follows:

a. Pump

C. Supports:

1. Provide sufficient clips, inserts, hangers, racks, rods, and auxiliary steel to securely support all suspended material, equipment and conduit without sag.

2. Hang heavy equipment from concrete floors or ceilings with Architect-approved concrete inserts, furnished and installed by the Contractor whose work requires them, except where indicated otherwise.

D. Grout:

1. Grout shall be non-shrinking premixed (Master Builders Company "Embecco"), unless otherwise indicated on the drawings or approved by the Architect/Engineer.

2. Use Mix No. 1 for clearances of 1" or less, and Mix No. 2 for all larger clearances.

3. Grout under equipment bases, around pipes, at pipe sleeves, etc., and where shown on the drawings.

2.4 OPENINGS IN FLOORS, WALLS AND CEILINGS

A. Exact locations of all openings for the installation of materials shall be determined by the Contractor for installation or construction as the structure is built.

B. Coordinate all openings.

C. Hire the proper tradesman and furnish all labor, material and equipment to cut openings in or through existing structures, or openings in new structures that were not installed, or additional openings. Repair all spalling and damage to the satisfaction of the Architect/Engineer. Make saw cuts before breaking out concrete to ensure even and uniform opening edges.

USDA-ARS-NADC, Ames, IA 15140 - 7

D. Said cutting shall be at the complete expense of Contractor. Failure to coordinate openings shall not exempt the Contractor from providing openings at his expense.

E. Do not cut structural members without written approval of the Architect or Structural Engineer.

2.5 ROOF PENETRATIONS

A. Seal pipes with surface temperature below 150ºF penetrating single-ply roofs with conical stepped pipe flashings and stainless steel clamps equal to Portals Plus Pipe Boots.

Material shall match roofing membrane.

B. Break insulation only at the clamp for pipes between 60ºF and 150ºF. Seal outdoor insulation edges watertight.

2.6 PIPE SLEEVES AND LINTELS

A. Contractor shall provide pipe sleeves and lintels for all openings required for the Contractor’s work in masonry walls and floors.

B. Fabricate all sleeves from standard weight black steel pipe or as indicated on the drawings. Provide continuous sleeve. Cut or split sleeves are not acceptable.

C. Fabricate all lintels from structural steel shapes or as indicated on the drawings. Have all lintels approved by the Architect or Structural Engineer.

D. Sleeves through the floors on exposed risers shall be flush with the ceiling, with planed squared ends extending 1" above the floor in unfinished areas, and flush with the floor in finished areas, to accept spring closing floor plates.

E. Sleeves shall not penetrate structural members without approval from the Structural Engineer. Sleeves shall then comply with the Engineer’s design.

F. Openings through unexcavated floors and/or foundation walls below the floor shall have a smooth finish with sufficient annular space around material passing through opening so slight settling will not place stress on the material or building structure.

G. Install all sleeves concentric with pipes. Secure sleeves in concrete to wood forms.

Contractor is responsible for sleeves dislodged or moved when pouring concrete.

H. Where pipes rise through concrete floors that are on earthen grade, provide 3/4" resilient expansion joint material (asphalt and cork) wrapped around the pipe, the full depth of concrete, at the point of penetration. Secure to prevent shifting during concrete placement and finishing.

I. Size sleeves large enough to allow expansion and contraction movement. Provide continuous insulation wrapping.

J. Wall Seals ("Link-Seals"):

1. Where shown on the drawings, pipes passing through walls, ceilings, or floors shall have their annular space (sleeve or drilled hole - not tapered hole made with knockout plug) sealed by properly sized sealing elements consisting of a

USDA-ARS-NADC, Ames, IA 15140 - 8 synthetic rubber material compounded to resist aging, ozone, sunlight, water and chemical action.

2. Sleeves, if used, shall be standard weight steel with primed finish and waterstop/anchor continuously welded to sleeve. If piping carries only fluids below 120ºF, sleeves may be thermoplastic with integral water seal and textured surface.

3. Sleeves shall be at least 2 pipe sizes larger than the pipes.

4. Pressure shall be maintained by stainless steel bolts and other parts. Pressure plates may be of composite material for Models S and OS.

5. Sealing element shall be as follows:

Model Service Element Material

Temperature Range

S Standard (Stainless) EPDM -40ºF to 250ºF T Fire Seals (1 hour) Silicone -67ºF to 400ºF

FS Fire Seals (3 hours) Silicone -67ºF to 400ºF OS Oil Resistant/Stainless Nitrile -40°F to 210°F

6. Acceptable Manufacturers: Thunderline Corporation "Link-Seals", O-Z/Gedney Company, Calpico, Inc., Innerlynx, or approved equal (cold service only).

2.7 ESCUTCHEON PLATES AND TRIM

A. Fit escutcheons to all insulated or uninsulated exposed pipes passing through walls, floors, or ceilings of finished rooms.

B. Escutcheons shall be heavy gauge, cold rolled steel, copper coated under a chromium plated finish, heavy spring clip, rigid hinge and latch.

C. Install galvanized steel (unless otherwise indicated) trim strip to cover vacant space and raw construction edges of all rectangular openings in finished rooms. This includes duct and pipe openings.

2.8 PIPE PENETRATIONS

A. Seal all pipe penetrations. Seal non-rated walls and floor penetrations with grout or caulk. Backing material may be used.

B. Seal fire rated wall and floor penetrations with fire seal system as specified.

2.9 PIPE ANCHORS

A. Provide all items needed to allow adequate expansion and contraction of all piping. All piping shall be supported, guided, aligned, and anchored as required.

B. Repair all piping leaks and associated damage. Pipes shall not rub on any part of the building.

2.10 FINISH

A. Prime coat exposed steel hangers and supports. Hangers and supports in crawl spaces, pipe shafts, and suspended ceiling spaces are not considered exposed.

USDA-ARS-NADC, Ames, IA 15140 - 9

PART 3 - EXECUTION

3.1 PIPE HANGERS AND SUPPORTS

A. Install all items per manufacturer's instructions.

B. Support all piping and equipment, including valves, strainers, traps and other specialties and accessories to avoid objectionable or excessive stress, deflection, swaying, sagging or vibration in the piping or building structure during erection, cleaning, testing and normal operation of the systems.

C. Do not, however, restrain piping to cause it to snake or buckle between supports or to prevent proper movement due to expansion and contraction.

D. Support piping at equipment and valves so they can be disconnected and removed without further supporting the piping.

E. Piping shall not introduce strains or distortion to connected equipment.

F. Where building structural steel is fireproofed, all hangers, clamps, auxiliary steel, etc., which attach to it shall be installed prior to application of fireproofing. Repair all fireproofing damaged during pipe installation.

G. Set all concrete inserts in place before pouring concrete.

H. Furnish, install and prime all auxiliary structural steel for support of piping systems that are not shown on the Drawings as being by others.

I. Install hangers and supports complete with lock nuts, clamps, rods, bolts, couplings, swivels, inserts and required accessories.

J. Hangers for horizontal piping shall have adequate means of vertical adjustment for alignment.

K. Parallel horizontal pipes may be supported on trapeze hangers made of structural shapes and hanger rods; otherwise, pipes shall be supported with individual hangers.

L. Trapeze hangers may be used where ducts interfere with normal pipe hanging.

M. Coordinate the location and method of support of piping systems with all installations under other Divisions and Sections of the Specifications.

N. Avoid eccentric loading of structural members. Load trusses and bar joists from top chord at panel points only.

O. Do not exceed the manufacturer's recommended maximum load for any hanger or support.

P. Provide additional supports where pipe changes direction, adjacent to flanged valves and strainers, at equipment connections and heavy fittings.

Q. Provide at least one hanger adjacent to each joint in cast iron soil pipe, grooved end steel pipe with mechanical couplings, and glass pipe.

R. Where pipe support members are welded to structural building framing, scrape, brush clean, and apply one coat of zinc rich primer to welding.

USDA-ARS-NADC, Ames, IA 15140 - 10

S. Spacing of Hangers shall not exceed the compressive strength of the insulation inserts, and in no case shall exceed the following:

1. Flexible Plastic Pipe, Flexible Hose, and Soft Copper Tubing:

a. Continuous channel with hangers maximum 8’-0” O.C.

2. Rigid Plastic Pipe:

a. Space hangers at 4’-0” maximum centers.

3. Installation of hangers shall conform to MSS SP-69, MSS SP-89 and the applicable Plumbing Code.

END OF SECTION 15140

USDA-ARS-NADC, Ames, IA 15162 - 1

DIVISION 15 - MECHANICAL

Section 15162 - Sanitary Sewerage Pumps

PART 1 - GENERAL

1.1 SECTION INCLUDES

A. Sewage Pumps.

1.2 SUBMITTALS

A. Submit shop drawings under provisions of Section 15010.

B. Submit certified pump performance curves with pump and system operating point plotted.

Include NPSH curve when applicable.

C. Pumps with motors operating above the RPM the pump curves are based on shall have impellers trimmed to deliver GPM and head scheduled.

PART 2 - PRODUCTS

2.1 GENERAL

A. Statically and dynamically balance rotating parts.

B. Construction shall permit complete servicing without breaking piping or motor connections.

C. Pumps shall operate at 1750 rpm unless specified otherwise.

D. Pump connections shall be flanged, whenever available.

E. Motors shall comply with Section 15170.

F. The discharge pipe sizes shall meet or exceed the scheduled pump.

2.2 SEWAGE PUMPS

A. Provide pumps as specified on the drawings.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Install all products per manufacturer's recommendations.

B. Install pumps and arrange to provide access for maintenance including removal of motors, impellers, couplings, and accessories.

C. Ensure pumps operate at specified fluid temperatures without vapor binding or cavitation, are non-overloading in parallel or individual operation, and operate within 25% of midpoint of published maximum efficiency curve.

USDA-ARS-NADC, Ames, IA 15162 - 2

D. Pumps shall be factory aligned. If alignment is not satisfactory, as determined by the Engineer, manufacturer shall provide a factory trained representative to field align the shafts.

E. Set submersible sewage pumps on basin/pit floors. Make direct connections to sanitary drainage piping.

F. Support piping so weight of piping is not supported by pumps.

G. Mount control panel on adjacent wall within required distance for cables and wiring.

Provide unistrut mounting frame for the control panel if wall space is not available.

Properly anchor frame to floor.

END OF SECTION 15162

USDA-ARS-NADC, Ames, IA 15170 - 1

DIVISION 15 - MECHANICAL

Section 15170 - Motors

PART 1 - GENERAL

1.1 SECTION INCLUDES

A. Single Phase and Three Phase Electric Motors.

1.2 REFERENCES

A. AFBMA 9 - Load Ratings and Fatigue Life for Ball Bearings.

B. AFBMA 11 - Load Ratings and Fatigue Life for Roller Bearings.

C. ANSI/IEEE 112 - Test Procedure for Polyphase Induction Motors and Generators.

D. ANSI/NEMA MG 1 - Motors and Generators.

E. ANSI/NFPA 70 - National Electrical Code.

1.3 OPERATION AND MAINTENANCE DATA

A. Submit operation and maintenance data including assembly drawings, bearing data including replacement sizes, and lubrication instructions.

1.4 DELIVERY, STORAGE, AND HANDLING

A. Protect motors stored on site from weather and moisture by maintaining factory covers and suitable weatherproof coverings.

PART 2 - PRODUCTS

2.1 GENERAL CONSTRUCTION AND REQUIREMENTS

A. Refer to the drawings for required electrical characteristics.

B. Design motors for continuous operation in 40ºC environment, and for temperature rise in accordance with ANSI/NEMA MG 1 limits for insulation class, service factor, and…