Atch 03 General Mechanical Provisions.pdf

FXSB 19-4014 - Radiant Bay Heating 10682 9684

SECTION 15010

GENERAL MECHANICAL PROVISIONS

15010-1

SECTION 15010

GENERAL MECHANICAL PROVISIONS

PART 1 GENERAL

1.1 SCOPE

A. Furnish all labor, materials, equipment, supervision of labor, and performance of all operations required to completely install satisfactorily operating mechanical and plumbing systems as defined herein and on Drawings.

B. Major items of work include, but are not limited to, the installation of the following systems:

1. Plumbing.

2. Heat generation.

3. Ventilation and air distribution.

4. Liquid heat transfer.

5. Controls and instrumentation systems.

C. Other divisions of these specifications apply to work generally defined by Division 15 specifications and/or described in the SOW. For additional details, refer to sections detailing work under other divisions.

D. The SOW and specifications are complementary to each other.

What is shown on one is as binding as if called for in both. It is the intent of the contract documents to provide a complete and satisfactorily working installation.

E. Submit in writing to the Contracting Officer for review details of any necessary or proposed departures from these Contract Documents and reasons therefore, as soon as practicable within 30 days after the award of the contract. Make no such departure without prior written approval of the Contracting Officer.

F. Coordination of the Work: Coordinate work under this Division with work of other trades to avoid conflicts, errors and delays.

G. Verify the approximate location of equipment and other mechanical system components listed in the SOW and report any conflicts with openings, structural members and components of other systems and equipment having fixed locations.

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FXSB 19-4014 Radiant Bay Heating 10682 9684 Attachment 03 - General Mechanical Provisions

SECTION 15010

GENERAL MECHANICAL PROVISIONS

15010-2

H. If, during the course of accomplishing the work defined herein and in the SOW, the Contractor discovers major damage, defect or deterioration to existing equipment or systems indicated as existing to remain, and where such damage, defect or deterioration will or might effect the safe and proper operation of such equipment and systems, the Contractor shall immediately notify the Contracting Officer in writing.

1.2 REFERENCES

A. Codes and Standards: All work and materials shall comply with the latest issues of the following:

1. International Building Code (IBC).

2. Air Moving and Conditioning Association (AMCA).

3. American Society of Heating, Refrigeration and Air

Conditioning Engineers (ASHRAE).

4. American Society of Mechanical Engineers (ASME).

5. National Fire Protection Association (NFPA).

6. Uniform Plumbing Code (UPC).

7. American Society for Testing Materials (ASTM).

8. American Water Works Association (AWWA).

9. American Welding Society (AWS).

10. Hydraulic Institute (HI).

11. National Bureau of Standards (NBS).

12. National Electrical Code (NEC).

13. National Electrical Manufacturers Association (NEMA).

14. Underwriters' Laboratories, Inc. (UL).

15. American National Standards Institute (ANSI).

16. Sheet Metal and Air Conditioning Contractors' National

Association (SMACNA).

17. International Mechanical Code (IMC).

18. Air-Conditioning and Refrigeration Institute (ARI).

19. International Fire Code (IFC).

20. All base materials shall comply with standards of ASTM and

ANSI.

21. Occupational Safety and Health Administration (OSHA).

22. Environmental Protection Agency (EPA).

23. National Environmental Balancing Bureau (NEBB).

1.3 QUALITY ASSURANCE

A. All work and materials shall be in accordance with applicable codes, standards and ordinances, rules and regulations of the Fire Marshal and of the utility companies. Nothing in the Drawings and Specifications shall be construed as requiring or permitting work in violation of such codes.

B. Rulings and interpretations of the agencies having jurisdiction shall be considered as part of the codes and regulations if commonly known to the trade prior to bidding.

C. Whenever the Drawings and Specifications require higher standards than the codes and regulations, the Drawings and Specifications shall govern.

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D. Only craftsmen skilled in their trade shall be employed.

E. Fire rated systems: maintain the integrity of fireproofing materials, systems, rated partitions, and floors at all mechanical penetrations.

1.4 SUBMITTALS

A. Submit shop drawings material data sheets, manufacturer’s literature and all other items through Contracting Officer for review and approval.

B. Mechanical Shop Drawings and Product Data:

1. Submit large scale dimensioned shop drawings certified by manufacturer of major equipment and other equipment as may be directed by the Contracting Officer.

2. Submit shop drawings for work in congested areas, boiler rooms, and fan rooms, indicating solutions to space problems and coordination with work in other Divisions.

These drawings, as a requirement of the Division, must indicate work of all Divisions involved in congested areas, including, equipment, ductwork, piping, control panels, electrical work, ceiling work, etc. boiler room and fan room shop drawings shall be at a minimum scale of 1/2"=1'- 0".

3. Submit shop drawings for work deviating from that indicated on Drawings.

4. Submit shop drawings for all ductwork. Do not proceed without obtaining prior approval of shop drawings from Contracting Officer. Ductwork shop drawings shall be at a minimum scale of 1/2"=1'-0", shall be completely dimensioned, and shall clearly show the following:

a. Fittings

b. Offsets and transitions

c. Mounting heights

d. Turning vanes and air extractors

e. Volume dampers

f. Duct lining and insulation

g. Access doors

h. Building access panels

i. Flexible connections

j. Duct sizes

k. Duct gage and construction

l. Duct hangers and supports

m. Duct sealing methods and requirements

n. Exterior wall or roof penetration details

o. Sleeve details

p. Seismic restraint

5. Furnish physical and performance data, including materials, manufacturers' names, model numbers, sizes, capacities, finishes, colors, accessories and other data required to completely describe equipment and to indicate compliance with Drawings and Specifications.

6. Submit shop drawings of all equipment bases and supports, and all pipe and duct hangers and supports.

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7. Submit shop drawings of any product, which is not the standard catalog product of an established manufacturer and is fabricated for by the contractor.

8. Submit shop drawings and other items as herein specified in the individual Sections.

9. Include with shop drawings of fabricated items the basis of design and design calculations.

10. Samples: Submit samples of materials as requested by the Contracting Officer. Shop Drawings and Manufacturer's Literature:

1.5 CLOSEOUT SUBMITTALS

A. Submit all required certifications and testing reports as specified in Division 1 and the individual sections of Division 15000.

1.6 PROJECT CONDITIONS

A. Site Visit: It is advised that the Contractor visit the site and verify the exact conditions relating to his work and obtain such information as may be necessary to provide an intelligent and conclusive bid. No allowance will be made on behalf of the Contractor for any extra expense due to failure on his part to make such a visit.

B. Protection: Protect surrounding areas and surfaces to preclude damage due to the installation of any material or equipment.

Unfinished work shall be temporarily protected from unsafe conditions and damage.

C. Sequencing and Scheduling: Coordinate the scheduling of equipment and material installations with all other affected trades to avoid conflicts. If, during the course of construction, conditions are discovered which adversely affect the mechanical work, immediately notify the Contracting Officer before proceeding. Advise other trades of openings required in their work for the subsequent installation of mechanical work or equipment.

1.7 INSPECTION

A. All work and materials shall be subject at all times to inspection by the Contracting Officer and by the agencies having jurisdiction.

B. Any work or materials found to be damaged or defective or not conforming to the requirements of the Drawings or Specifications, or to the approved finish aesthetic appearance of the job, shall be removed and replaced as directed by the Contracting Officer.

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1.8 ELECTRICAL REQUIREMENTS

A. All electrical work, equipment, wiring, devices and components shall comply with the requirements of local and national electrical codes.

B. All electrical equipment, devices and components, which are tested by Underwriters Laboratories, Inc., shall be UL listed and shall bear a UL label.

C. Unless otherwise indicated on the electrical drawings, all mechanical equipment motors and controls shall be furnished, set in place, and wired in accordance with the following schedule:

(Carefully coordinate all work with Division 16.) Refer to Division 16 for motor characteristics and motor controls.

FURNISHED

UNDER

DIVISION

SET IN

PLACE BY

DIVISION

LINE

VOLTAGE

POWER

UNDER

DIVISION

MECH

CONTROL

Equipment Motors 15 15 16 15

Magnetic Motor Starters:

a. Automatically controlled 16 16 16 15

b. Manually controlled 16 16 16 15

c. In packaged equipment 15 15 16 15

d. Disconnect switches, manual motor starters, thermal overload switches, VFDs

e. Control relays, transformers, time clocks, thermostats, motor valves, float controls, damper motors, EP and PE switches and other miscellaneous Division 15 Controls

16 16 16 --

15 15 16 15

D. Where Drawings clearly and explicitly differ from preceding paragraphs, Drawings have precedence.

E. Factory wired assemblies and panels shall be pre-wired to numbered terminal strips for connection to field wiring.

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1.9 USE OF HEATING SYSTEMS DURING CONSTRUCTION

A. The Contractor is free to use or operate the heating system, provided the Contracting Officer approves the operation in writing. Operation of the air delivery system during construction shall only be done with specified filters properly installed.

B. When construction is complete, the Contractor shall install new filters at no additional expense to the Government. The Contractor shall pay for all energy used until acceptance of the building.

1.10 GUARANTEE

A. Neither the final certificate of payment, nor any provision in the Contract Documents, nor partial or entire occupancy of the premises by the Government shall constitute an acceptance of work not done in accordance with the Contract Documents or relieve the Contractor of liability in respect to any express warranties or responsibilities for faulty materials or workmanship.

B. The Contractor shall remedy any defects in the work and pay for any damage to other work resulting there from which shall appear within a period one year form the date of final acceptance of work, unless a longer period is specified. The Contracting Officer will give notice of observed defects with reasonable promptness.

1.11 OPERATING AND MAINTENANCE DATA

A. The Contractor shall prepare operating and maintenance instructions containing information to operate, prolong service life or replace parts of the work. Operating and maintenance data shall specifically include:

1. List of all contractors and subcontractors names, addresses and telephone numbers.

2. List of all equipment and material manufacturers' local representatives and suppliers and their addresses and telephone numbers.

3. Pipe and duct identification schedules.

4. Nameplate directory with a list of all equipment indicating designation, location of equipment, manufacturers' name, model number, serial number, electrical characteristics, primary control switch location and normal position of switch.

5. Valve directory indicating valve number, size, location, function, service, type and normal position.

6. Boiler start-up testing report.

7. Air and hydronic test and balance report.

B. Equipment Literature: For all equipment, fixtures, devices, valves and specialties, provide the following:

1. Manufacturer's data sheets and cut sheets.

2. Model and serial numbers.

3. Capacity curves, charts and calculations.

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4. Electrical characteristics.

5. Replacement parts list.

6. As-built equipment piping diagrams.

7. As-built equipment wiring diagrams.

8. Manufacturer's instructions for operation and maintenance.

9. Completely mark out on all literature sheets all non-applicable items.

10. Where piping and wiring diagrams are not available from the manufacturer, the Contractor shall produce them.

11. Literature shall be grouped together by system, i.e., plumbing, heat generation, etc. For each system section, the Contractor shall produce and include a basic system written narrative description. Each narrative shall be comprised of the following:

a. Brief system description, including sequence of operation.

b. Basic system function discussion, including any interaction with other systems or components.

c. Primary system preventive maintenance procedures.

d. How to isolate all major components.

e. How to drain, fill and vent liquid system.

f. How to drain, clean and refill all tanks, pumps and tube bundles.

g. How to clean coils and change air filters for air systems.

h. Emergency shutdown procedures.

C. System Schematic Drawings:

1. System Schematic Drawings: The Contractor shall produce and include in the maintenance manuals, simplified schematic drawings of the mechanical systems, specifically including, but not necessarily restricted to, the following systems:

a. Hydronic heating and cooling systems.

b. Ventilation and exhaust systems.

c. Domestic water systems.

d. HVAC DCC systems.

2. Schematic drawings shall: Show in simplified form, major equipment and equipment components, control dampers, control valves and valves or devices used during normal system operation, maintenance work or emergency functions.

a. Show the primary flow paths for air and hydronic systems.

b. Reference all shown equipment, devices, ducts, zones, controls devises, piping and valves by the designations and identification tags listed in the valve directory nameplate directory, duct schedule and pipe coding schedules.

D. Master Maintenance Schedule: List each item of equipment requiring inspection and maintenance, showing component maintenance required and the intervals when such inspection and maintenance shall be performed (daily, weekly, monthly, semi-annually, etc.). For each item, reference the page within the maintenance manual where detailed manufacturer's maintenance instructions can be found.

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PART 2 PRODUCTS

2.1 MATERIALS AND EQUIPMENT

A. Materials and equipment shall be those of major and reputable manufacturers with ability to render competent and thorough service through local organizations and expeditiously to provide spare parts.

B. In addition to material and equipment specified, also provide incidental materials required to effect complete installation.

Such incidental materials include solders, tapes, caulking, mastics, gaskets, etc.

C. Mixes, Compounds, Dopes, Tapes and Fluxes: All mixes, compounds, dopes, tapes and fluxes shall be fresh, highest quality, free of contaminants, of the type and grade suitable for the intended use in each case. Where more than one type of mix, etc. is specified for the same service, select one type; however, state which type is proposed for use in the submittal material and in no case more than one type is to be used in a specific mechanical system.

Where two or more units of the same mix, etc., are required, provide products of a single manufacturer. Provide mixes, etc., bearing approval stamps wherever standards have been established.

Comply with governing regulations and industry standards for selections, and with manufacturers' recommendations where applicable.

D. Valves, piping specialties, and escutcheons and access panels to be of same manufacturer throughout installation even though they may be specified in different Divisions of these specifications.

E. All materials and equipment shall be free of asbestos. Mixes, fluxes, and solders shall be free of lead. Submit certification no asbestos or lead based materials have been used or installed.

2.2 PRODUCT DELIVERY, STORAGE, AND HANDLING

A. All materials shall be new, unused and delivered to the job site packed in their original containers.

B. All materials shall be delivered free of damage or defects.

C. Provide adequate storage facilities at the job site to protect materials from damage or corrosion.

D. Protect material, equipment and apparatus provided under this Division from damage, water, dust, etc., both in storage and installed until final completion has been filed. Materials, equipment or apparatus damaged because of improper storage or protection will be rejected and must be removed from site.

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PART 3 EXECUTION

3.1 PREPARATION

A. The Contractor shall lay out all work in advance of construction and shall determine the correct location and placement of all material and equipment.

B. Schedule all work in coordination with that of other trades in order to avoid delays in construction and unnecessary cutting and patching.

3.2 INSTALLATION

A. All work shall be installed neatly and in accordance with the best practices in the trade.

B. Workmanship must be of highest quality, done by persons especially skilled at assigned tasks, resulting in neat, clean and well-done installations consistent with best practices of trades.

C. Repair or replace materials and parts of premises which become damaged as a result of installation of work of this Division.

Remove replaced parts from the premises.

3.3 OPERATING AND MAINTENANCE INSTRUCTION

A. Mechanical Instruction: The Contractor shall provide a minimum of 8 hours of instruction on the operation and maintenance of all mechanical systems to maintenance personnel.

B. A qualified technician shall perform instruction.

C. A factory certified representative shall give instruction of major pieces of equipment.

D. The instruction shall consist of both a "classroom" period and a "field" period.

E. The classroom portion shall consist of a brief discussion of each piece of equipment, using the maintenance manual as a guide, and a general preventive maintenance discussion of system as a whole;

e.g., discuss procedure for maintaining proper glycol heat transfer solution mixture, etc.

F. The field portion shall consist of a building walk-through to physically locate and examine each piece of equipment previously discussed. At that time, the main points discussed during the classroom portion shall be recovered while pointing out the specific grease fitting or valve, etc.

G. Certification: The Contractor shall submit, prior to or at the time of Substantial Completion and before the Government will accept responsibility for maintenance and operation of the

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15010-10 facility, certification that instructions of maintenance and operation procedures have been given to representatives of the Government responsible for the maintenance and operation of the facility.

1. The certification shall indicate the name and be affixed with the signature(s) of the person(s) receiving the instructions, the dates of instruction, the names of the Contractor or subcontractor giving the instructions, and shall list the appropriate areas of instruction. Until these requirements are met, the Contractor shall provide at least one maintenance mechanic, acceptable to the Government, to operate and maintain the facility's system(s).

3.4 START-UP / DEMONSTRATION: As specified in Division 1

A. Provide the services of a factory trained technician for the start-up and testing of the following equipment:

1. Boilers.

2. Circulation Pumps.

B. Prepare and submit complete start-up testing and demonstration plans 30 days prior to schedule test, start-up or demonstration date. All mechanical systems shall be demonstrated for proper operation. The demonstration plan shall clearly identify each system and piece of equipment and the proposed demonstration.

C. Following successful testing and start-up, submit certifications that the equipment and/or systems are operating properly.

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SECTION 15050

BASIC MECHANICAL

MATERIALS AND METHODS

15050-1

SECTION 15050

BASIC MECHANICAL MATERIALS AND METHODS

PART 1 GENERAL

1.1 SCOPE

A. The work of this section describes the materials and methods common to all sections of Division 15. Mechanical materials specified under other sections of Division 15 shall meet the requirements of this section, unless part of larger factory-assembled equipment.

B. As specified and as shown, furnish, install, test, and place in satisfactory and successful operation all equipment, materials, devices, and necessary appurtenances to provide a complete and operable mechanical system.

1.2 RELATED SECTIONS

A. Section 15010 - General Mechanical Provisions.

1.3 QUALITY ASSURANCE

A. Mechanical Welding: Perform welding of pressure piping systems in accordance with provisions of all applicable codes, including ASME Boiler and Pressure Vessel Code, and ANSI/ASME B31 Series, Code for Pressure Piping. Qualify welding procedures, welders, and operators in accordance with ANSI/ASME B31.1, Paragraph 127.5, for shop and project site welding of piping work. The performance qualifications of a welder or welding operator shall be affected under the following conditions:

1. When he has not welded with a process during a period of three months or more, his qualifications for that process shall be expired; except when he is welding with another process, the period may be extended to six months.

2. When he has not welded with any process during a period of three months, all his qualifications shall be expired including any which may extend beyond three months by virtue of the above.

3. Welders whose qualifications have lapsed shall be re-qualified.

1.4 SUBMITTALS

A. Submit under provisions of Division 1 and 15010. Submittal shall list the proposed manufacturer and shall include the following data:

1. Product data: Provide manufacturers data on expansion joints, piping supports, piping hangers, piping labels equipment tags, and valve tags.

2. Cleaning and flushing certification: Provide certification that piping systems are cleaned, flushed and disinfected as specified.

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1.5 CLOSEOUT SUBMITTALS

A. Submit operation and maintenance data as specified in the individual sections of this division and Section 15010 and Division 1.

1.6 COORDINATION OF ELECTRICAL AND MECHANICAL WORK

A. Electrical Requirements:

1. Provide mechanical system controls, controllers, control transformers, disconnects, starters, control wiring, power wiring, and all other electrical work necessary for complete and operable mechanical systems. Motors, motor circuits, and controllers shall meet requirements of NEC 430. All electrical work including materials provided under Division 15 shall meet the requirements of Division 16. Unless otherwise specified, electrical materials and equipment, included as part of larger factory-assembled equipment, shall be the standard equipment normally furnished as part of that equipment by the manufacturers.

2. HVAC Control Wiring: See Section 15910.

3. Wiring Diagrams: Provide complete and approved wiring diagrams for all electrical power and control work relating to mechanical systems.

4. Install wiring for all mechanical work in conduit. See Division 16.

5. Motors and Starters Not Furnished Integrally with Mechanical Equipment: Starters and Motors - See Division 16.

1.7 CUTTING AND PATCHING

A. All work shall be carefully laid out in advance. Where cutting, channeling, chasing or drilling of existing surfaces is required, such work shall be carefully done. Every effort shall be made to limit damage to the existing surfaces and building subsystems.

Where damage is incurred, surfaces and subsystems shall be patched and repaired to their original condition or better. Skilled craftsman of the proper trades involved shall do all patching and repairing. All vapor barrier penetrations shall be sealed airtight. Cutting, patching, and refinishing shall comply with all other applicable Divisions of these Specifications. Do not cut or modify structural elements unless specifically detailed on the Drawings or approved in writing by the Contract Administrator.

2.1 MOTORS AND MOTOR STARTERS FURNISHED INTEGRALLY WITH EQUIPMENT

A. Specified in the individual Sections of this division.

2.2 DRIVES

A. V-belt with cast iron sheaves rated not less than 1-1/2 times motor horsepower.

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B. Motor Sheaves: Motors 5 horsepower and less for belt-driven equipment shall have adjustable pulleys. Contractor shall replace motor sheaves with the correct pitch diameter for motors over 5 horsepower to match the nameplate rating of the motor.

C. Multiple V-belts shall be matched sets.

2.3 DRIVE GUARDS

A. Meet requirements of OSHA.

B. All drive guards shall be removable.

C. Belt Drives: Enclosed in a 16 gage expanded metal or wire screen drive guard with 70 percent free area, with steel frame covering both sides of belt drive. Provide holes in belt guards for tachometer readings. Provide access door in guard to permit checking of belt tension.

D. Rotating Shafts and Couplings: Provide a solid 16 gage sheet metal inverted U-cover over entire length of exposed shaft. Extend cover to below bottom of shaft and couplings.

3.1 GENERAL INSTALLATION

A. Follow manufacturer's recommendations.

3.2 PIPING INSTALLATION

A. Piping Installations: The following items are typical for all piping installations.

B. Close all openings in pipes with appropriate caps, plugs or covers during progress of the work to prevent introduction of undesirable materials or contaminants.

C. Slope all pipelines and provide low point drains, using hose end gate valves and high point vents, using specified automatic air vents.

D. Provide valves and unions adjacent to all tanks and equipment for isolation and removal purposes. All valves shall be installed with stems vertical whenever possible, and in no case shall stems be oriented below horizontal.

E. Ream ends of all pipes to full diameter free of burrs, nicks and sharp edges.

F. Cut pipe accurately from measurements taken on the site.

Springing or bending to fit or make up pipe will not be permitted.

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G. Expansion Joints, Loops, Guides and Anchors: Provide joints, loops, anchors and guides as indicated on the Drawings.

H. Bushings will not be permitted except on tanks and similar equipment. Close nipples will not be permitted.

I. Reduction of pipe sizes shall be made with reducing tees or reducing fittings.

J. All pipelines except piping under slab on grade shall be installed parallel with building lines and as high as possible. Piping shall clear all doors, windows and other openings. Avoid all ducts, light fixtures and similar equipment and conceal in finished areas whenever possible and as indicated on the Drawings.

K. Piping shall be supported in a manner to prevent binding, undue swing and vibration transmission to the structure.

L. Where multiple pipes are clustered and routed in parallel, use trapeze hangers.

3.3 EQUIPMENT INSTALLATION

A. Belt Driven Equipment: Mount with motors on common steel base with adjustable motor mount. Align all drives.

B. Pumps: Align pump and motor. After steel and cast iron pump bases are set, fill bases with concrete grout.

C. Install equipment so nameplates are visible.

D. Fan static pressures and rpm shown are approximate. Adjust or change drives as required to achieve air quantities shown.

E. Protect installed fixtures and equipment from damage.

3.4 CLEANING

A. During progress of the work, keep premises reasonably free of debris, cuttings and waste material. Upon completion of work and at other times as the Contract Administrator may direct, remove debris from premises.

B. Remove foreign materials including dirt, grease, and splashed paint. Restore damaged finishes of equipment to original condition.

C. Equipment, Fixtures and Devices: All components of the mechanical installation, including equipment, fixtures and devices shall be thoroughly cleaned before final completion.

D. Mechanical Equipment: Prior to final inspection, replace filters if heating or air conditioning units were operated during construction. If operated without filters, clean ducts, blowers, and coils.

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E. Duct Systems: Clean the interior of all new duct systems prior to system operation.

F. Water Systems: Flush all piping systems, except petroleum products piping, with clear water. Operate valves and other system components; drain and sterilize domestic water systems in accordance with requirements of the public health agency having jurisdiction. Otherwise, use procedure specified below.

1. Chlorination of Completed Lines: In general, the methods outlined in AWWA C601 entitled, "Disinfection of Mains", should be used as guide in performing this operation.

Before being placed in service, the entire line shall be chlorinated. Chlorine shall be applied by the following methods; liquefied chlorine, gas-water mixture, fed-chlorine gas, or calcium hypochlorite water mixture, unless the Contract Administrator approves another method. The chlorinating agent shall be applied at the beginning of each section adjacent to the feeder connection and shall be injected through a corporation cock, hydrant or other connection ensuring treatment of the entire line. Water shall be fed slowly into the line with chlorine applied in amount to produce a dosage of 40 to 50 parts per million.

Portions of the existing mains, which have been connected to a new line or otherwise contaminated by construction, shall be included in the system being sterilized. A residual of not less than 10 parts per million shall be produced in all parts of the line at the end of a 24 hour retention period.

During the chlorination process, all valve operations shall be performed.

2. Final Flushing: After chlorination the water shall be flushed from the lines at the extremities until the replacement water tests are equal, chemically and bacteriologically, to those of the permanent water supply.

Upon completion of sterilization, certify to the Contract Administrator in writing the specified sterilization has been performed.

G. Closed Hydronic Circulating Systems: After above specified flushing, draining and refilling, boil out heating system, for a period of six hours, with water containing 1 lb Trisodium Phosphate for each 60 gallons of system capacity. Conduct boil out procedure at a temperature not less than 90 degrees C. Upon completion of boiling out, completely drain systems at low points;

remove, clean and replace strainer baskets. Flush and refill with chemically treated, corrosion inhibited hydronic solution.

3.5 PAINTING AND FINISHING

A. Ductwork and Piping: Remove all scale, dirt, oil and rust from surfaces to be painted. Prime coat all angle braces, supports, hangers, rods or straps, damper rods and quadrants with one coat of aluminum paint or rust-inhibiting primer.

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B. Ductwork, piping, mechanical equipment and accessories exposed in finished rooms shall be painted to match room finish, unless otherwise noted. Coordinate painting and color with painting requirements and as specified in Section 09900.

C. Ductwork and piping exposed in unfinished rooms shall receive two coats of flat white paint if insulated. Uninsulated piping and fittings shall be given coats of flat black heat-resistant enamel paint over suitable rust-inhibiting primer as specified in Section 09900.

D. Mechanical equipment and accessories exposed in unfinished rooms shall be factory prime coated and finished with manufacturers' standard colors.

E. Do not paint bronze body valves.

F. Mechanical Rooms, Fan Rooms, and Equipment Rooms: All exposed piping in the mechanical rooms, fan rooms, and equipment rooms shall be entirely finish painted and color coded as specified.

Where piping is finish painted, fluid identification and flow direction arrows shall be applied.

G. Exposed Mechanical Equipment: All mechanical equipment exposed in finished rooms or visible on the building exterior shall be factory prime coated and field finished in accordance with color scheme requirements, unless of stainless steel construction or aluminum construction.

H. Exterior items of aluminum construction shall be anodized or factory finished in color as selected by the Contracting Officer.

The selection of anodized versus colored finish shall be the option of the Contracting Officer.

3.6 PRELIMINARY OPERATION

A. Operate any portion of installation if requested. Such operation does not constitute acceptance of the work as complete.

3.7 START-UP / DEMONSTRATION: As specified in Division 1

A. See Section 15010.

B. Provide at least 20 hours of operating and maintenance instructions for maintenance personnel responsible for operating the equipment.

C. The Contractor shall demonstrate to the satisfaction of the

Contracting Officer, the complete and proper operation of all systems. The demonstration shall include, but not be limited to the following:

1. Proper operation of all mechanical systems.

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FXSB 19-4014 Radiant Bay Heating 10682 9684

SECTION 15910

DIRECT DIGITAL CONTROLS

15910-1

SECTION 15910

PART 1 GENERAL

1.1 SUMMARY

A. DDC control system shall consist of a master control panel to receive all signals from system equipment components accessible by a laptop PC for monitoring and control. Each control point shall complete with all equipment, wiring, control devices, hardware and software necessary for a complete and operable system point. Control panel and installed equipment shall be connected to and fully functional with all aspects of monitoring and control by the existing Automated Logic system hardware and software installed on base. Graphics and presentation scheme shall match existing layout. Approved Control submittals shall be submitted in electronic format (PDF).

B. The HVAC DDC system manufacturer shall furnish and install components to ensure a fully integrated building automation system, incorporating direct digital control (DDC) for energy management, equipment monitoring and control, and subsystems as herein specified. The contractor shall provide a complete temperature control system as specified herein. The installation of the control system shall be performed under the direct supervision of the controls manufacturer with the shop drawings, bill of materials, component designation or identification number, and sequence of operation all bearing the name of the manufacturer. This shall include but not be limited to all relays, alarm contacts, and sensors required for interface with other HVAC equipment specified in other sections of Division 15.

C. All materials and equipment used shall be standard components, regularly manufactured for this and/or other systems and not custom designed specially for this project. All systems and components shall have been thoroughly tested and proven in actual use for at least two years.

D. HVAC DDC system manufacturer shall be responsible for all HVAC

DDC system and Temperature Control wiring for a complete and operable system. All wiring shall be done in accordance with Division 16 of the specification and all local and national codes.

E. The Controls Subcontractor shall be a member of the Contractor’s commissioning team shall be responsible for providing all labor, materials, equipment etc., required within the scope of the this specification to facilitate the commissioning process. The commissioning members of the commissioning team shall perform all test and verification procedures required by the commissioning process when requested by the HVAC Commissioning Authority and as directed by the General Contractor. Section includes control equipment and software. Contractor shall provide and install all

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15910-2 controls equipment, sensors, panels, actuators, control dampers, control valves, controllers, hardware and software for a complete HVAC DDC system.

1.2 REFERENCES

A. ASME MC85.1 (American Society of Mechanical Engineers) - Terminology for Automatic Control.

B. NEMA EMC1 (National Electrical Mechanical Association) - Energy

Management Systems Definitions.

1.3 SYSTEM DESCRIPTION

A. Automatic temperature controls field monitoring and control system using field programmable microprocessor based units.

B. Base system on distributed system of fully intelligent, stand-alone controllers, operating in a multi-tasking, multi-user environment on token passing network, with central and remote hardware, software, and interconnecting wire and conduit.

C. Provide computer software and hardware, operator input/output devices, control units, sensors, control devices, actuators.

D. Provide controls for variable air volume terminals, radiation, reheat coils, unit heaters, fan coils, etc. when directly connected to control units.

E. Provide control systems consisting of thermostats, control valves, dampers and operators, indicating devices, interface equipment and other apparatus and accessories to operate mechanical systems, and to perform functions specified.

F. Provide installation and calibration, supervision, adjustments, and fine tuning necessary for complete and fully operational system.

1.4 WORK BY OTHERS

A. Mechanical contractor installs all wells, valves, taps, dampers, flow stations, etc.

B. Electrical Contractor provides:

1. 120V dedicated power circuit for DDC panels.

2. Wiring of all power feeds through disconnect starters to electrical motors.

3. Wiring of any remote start/stop switches and manual or automatic motor speed control devices not furnished by DDC manufacturer.

4. Installation and wiring of duct smoke detectors.

5. Power wiring of all smoke/fire dampers.

C. Products furnished but not installed under this section:

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1. Control Valves.

2. Temperature Sensor Wells and Sockets.

3. Control Dampers (excludes factory mounted mixing box dampers).

D. Products integrated to under this section:

1. Fire Alarm/Life Safety System: The DDC system shall monitor the fire alarm/life safety system for alarm conditions.

1.5 SUBMITTALS

A. Submit under the provisions of Division 1 and Section 15010.

Prior to installing the DDC systems, submit the following for review and approval.

B. Shop Drawings: Indicate the following:

1. Control system installation drawings showing the equipment controlled, the locations of field devices, field wiring, sequence of operation, and bill of materials.

2. Schematic control diagrams. Clearly indicate set-points, reset schedules, switch over points, signal ranges, and other points required to completely describe the system.

3. Complete controls wiring diagrams, architecture diagrams, and all penetration graphic screens (in color) for review and approval.

4. Trunk cable schematic showing programmable control-unit locations and trunk data conductors.

5. Connected data points, including connected control unit and input device.

6. System graphics showing monitored systems, data (connected and calculated) point addresses, and operator notations.

Submit demonstration diskette containing graphics.

7. System configuration with peripheral devices, batteries, power supplies, diagrams, modems, and interconnections.

C. Product Data: Submit data for each system component and software module.

1. Description and sequence of operation for operating, user, and application software.

2. Control valve and control damper schedules.

3. Product data/specification sheets for control system components and field devices.

D. Performance testing and commissioning plans: Provide a detailed system DDC system start-up plan and checklist that verifies each point, sensor, device, and panel connection. System start-up plan shall include a final performance test plan that verifies the execution of all Sequences of Operation.

E. Test reports: Submit Start-up, testing, commissioning and demonstration certification reports.

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1.6 CLOSEOUT SUBMITTALS

A. Submit operations and maintenance data under provisions of Division 1 - Closeout procedures and Section 15010.

B. Project Record Documents: Record actual locations of control components, including control units, thermostats, and sensors.

1. Revise shop drawings to reflect actual installation and operating sequences.

2. Submit data specified in "Submittals" in final "Record

Documents" form.

3. Provide a complete database backup CD ROM for the building management system and each direct digital controller to the Contracting Officer at final inspection. If software modifications are required during the warranty period update backup CD ROM. Backup CD ROM shall also contain a complete set of system color graphic of the graphic floor penetration, system graphic displays, and wiring diagrams.

C. Operation and Maintenance Data:

1. Index sheet, listing contents in alphabetical order.

2. Manufacturer's equipment parts list of all functional components of the system.

3. Description of sequence of operations.

4. As-built interconnection wiring diagrams.

5. Operator's Manual.

6. Hardware and software manuals.

7. Trunk cable schematic showing panel locations and all trunk data.

8. List of connected data points, including panels and input device (ionization detector, sensors, etc.) to which they are connected. Submit interconnection wiring diagrams complete field installed systems with identified and numbered system components and devices.

9. Submit keyboard illustrations and step-by-step procedures indexed for each operator function.

10. Submit inspection period, cleaning methods, cleaning materials recommended, and calibration tolerances.

D. Certified copy of the final DDC performance testing stating the hardware and software performs as specified and system functions according to the Sequence of Operation.

1.7 QUALIFICATIONS

A. Manufacturer and Installer: Special Requirement. All equipment communicating with the basewide EMCS system must use Automated Logic Controls components. The new installation shall comply with JBER EMCS system requirement for remote programming, emergency system shutdowns and reset to include but not limited to global Volcano, FPCON, Seasonal equipment, MOA gas reduction shut down; generator, electrical feeder, boiler, tank monitoring and alarming . The new system shall be programmed and the changes shall be incorporated on the graphical representation in the current JBER EMCS system.

Contractor shall provide all the necessary shop drawings, wiring diagrams and submittals, select the proper controls and deliver them to the job site, perform all adjustments and

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15910-5 perform a function check of equipment, and instruct the operating personnel and guarantee the equipment and its operation for a 1 year period.

1.8 FIELD MEASUREMENTS

A. Verify field measurements prior to fabrication.

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2.1 DIRECT DIGITAL CONTROLS

A. Manufacturers: Automated Logic.

2.2 OPERATOR MONITORING AND CONTROL

A. Computer:

1. Configuration: Laptop/notebook computer, IBM compatible

Pentium 2.0 GHz dual processor or faster.

2. Minimum memory: 4 GB RAM.

3. Display: 15 inch XGA active matrix display

4. Memory clock speed: 500 MHZ.

5. Network Card: 10/100 NIC card.

6. Keyboard: Standard “qwerty” layout plus a 10 key numeric keypad, dedicated function keys.

7. Hard disk drive: 100 GB.

8. Any special cards or internal boards required for connection of local DDC network.

9. Operating System: Windows XP, Windows Vista, or Windows 7.

2.3 CONTROL UNITS

A. Units: Modular in design and consisting of processor board with programmable RAM memory, local operator access and display panel, and integral interface equipment.

B. Battery Backup: For minimum of 48 hours for complete system including RAM without interruption, with automatic battery charger.

C. Control Units Functions:

1. Monitor or control each input/output point.

2. Completely independent with hardware clock/calendar and software to maintain control independently.

3. Acquire, process, and transfer information to operator station or other control units on network.

4. Accept, process, and execute commands from other control unit's or devices or operator stations.

5. Access both database and control functions simultaneously.

6. Record, evaluate, and report changes of state or value occurring among associated points. Continue to perform associated control functions regardless of status of network.

7. Perform in stand-alone mode:

a. Start/stop.

b. Duty cycling.

c. Automatic Temperature Control.

d. Demand control via a sliding window, predictive algorithm.

e. Event initiated control.

f. Calculated point.

g. Scanning and alarm processing.

h. Full direct digital control.

i. Trend logging.

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j. Global communications.

k. Maintenance scheduling.

D. Input/output Capability:

1. Discrete/digital input (contact status).

2. Discrete/digital output.

3. Analog input.

4. Analog output.

5. Pulse input (5 pulses/second).

6. Pulse output (0-655 seconds in duration with 0.01-second resolution).

E. Monitor, control, or address data points. Include analog inputs, analog outputs, pulse inputs, pulse outputs and discrete inputs/outputs. Furnish control units with minimum 30 percent spare capacity.

F. Point Scanning: Set scan or execution speed of each point to operator selected time from 1 to 250 seconds.

G. Upload/Download Capability: Download from or upload to operator station.

H. Test Mode Operation: Place input/output points in test mode to allow testing and developing of control algorithms on line without disrupting field hardware and controlled environment. In test mode:

1. Inhibit scanning and calculation of input points. Issue manual control to input points (set analog or digital input point to operator determined test value) from workstation.

2. Control output points but change only database state or value; leave external field hardware unchanged.

3. Enable control-actions on output points but change only data base state or value.

I. Local display and adjustment panel: Integral to control-unit containing digital display, and numerical keyboard. Display and adjust:

1. Input/output point information and status.

2. Controller set points.

3. Controller tuning constants.

4. Program execution times.

5. High and low limit values.

6. Limit differential.

7. Set/display date and time.

8. Control outputs connected to the network.

9. Automatic control outputs.

10. Perform control unit diagnostic testing.

J. Points in "Test" mode.

2.4 DELETED

2.5 CONTROL PANELS

A. All controllers, relays, switches, etc., shall be mounted in enclosed control panels with hinged and locking doors. All operating and indicating devices shall be flush mounted on the

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B. All control devices located in exposed areas subject to outside weather conditions shall be mounted inside weatherproof enclosures. Location of each panel shall be convenient for adjustment service.

C. Nameplates shall be provided beneath each panel face mounted control device describing the function of each device. Nameplates shall have white letters engraved on blue Lamicoid, or approved equal.

D. All control panels shall bear a UL label compatible with the application.

E. All electrical devices within the panel shall prewired to terminal strips with all inter-device wiring within the panel completed prior to installation of the system.

2.6 ELECTRIC DAMPER AND VALVE OPERATORS

A. All damper and valve operators shall be gear driven with oil-immersed gear trains and shall be fully proportioning with feedback potentiometers. Operators shall have metal bodies. The operators shall have ample power to overcome friction of damper linkage, air pressure acting on the damper blades and differential fluid pressures, as applicable.

B. Air damper operator mounting arrangement shall be outside the airstream wherever possible. The operators shall have external adjustable stops to limit the stroke.

C. The operator arrangement shall be such as to permit normally open or normally closed positions of dampers and valves as indicated on Drawings.

2.7 ELECTRIC CONTROLLERS

A. Each electronic controller shall provide a proportional output signal.

B. Electronic controllers shall include a separate output proportional to setpoint deviation, to provide input to sequence controllers and other auxiliary functions. A calibrated setpoint adjustment shall be provided.

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C. Each controller shall be provided with a permanent diagram of calibration and termination details. All adjustments must be accessible. The output of all controllers shall be short-circuit proof. All system components shall be capable of working in ambient temperatures of 32 deg. F to 140 deg. F.

D. Auxiliary Controllers:

1. Auxiliary controllers…