15050_en.doc

SECTION 15050

BASIC MECHANICAL MATERIALS AND METHODS

PART 1 - GENERAL

1.1

APPLICABLE PUBLICATIONS

The section applies to Division 15, "Mechanical" of this project except as specified otherwise in each individual section.

1.2

SUBMITTALS

All submittals shall be translated into English. Submit shop drawings, manufacturer's data, publication compliance, certified test reports, and manufacturer's certificates of compliance for equipment, materials and finish, and pertinent details for each system where specified in each individual section, and have them approved before procurement, fabrication or delivery of the items to the job site. Partial submittals will not be acceptable and will be returned without review. Submittals shall include the manufacturer's name, trade name, country of origin, catalog model or number, nameplate data, size, layout dimensions, capacity, project specification and the specific technical paragraph reference which specifies each item, applicable U.S., Italian or European Standard, industry and technical society publication references, and other information necessary to establish contract compliance of each item to be furnished.

1.2.1 Shop Drawings

Drawings shall be a minimum of 210 mm by 275 mm in size. Drawings shall include floor plans, sectional views, wiring diagrams, and installation details of equipment; and equipment spaces identifying and indicating proposed location, layout and arrangement of items of equipment, control panels, accessories, piping, ductwork, and other items that must be shown to assure a coordinated installation. Wiring diagrams shall identify circuit terminals, and indicate the internal wiring for each item of equipment and the interconnection between each item of equipment. Drawings shall indicate adequate clearance for operation, maintenance and replacement of operating equipment devices. If equipment is disapproved, drawings shall be revised to show acceptable equipment and be resubmitted prior to proceeding with the work.

1.2.2 Manufacturer's Data

Submittals for each manufactured item shall be manufacturer's descriptive literature of catalogued products, equipment drawings, diagrams, performance and characteristics curves, and catalog cuts.

1.2.3 Publication Compliance

Where equipment or materials are specified to conform to industry and technical society publications of organizations such as International Standards Organization Publications (ISO) and Italian National Institute for the Unification of Standards Publications (UNI) proof of such compliance shall be submitted. The label or listing by the specified organization will be acceptable evidence of compliance. In lieu of the label or listing, submit a certificate from an independent testing organization adequately equipped and competent to perform such services, and approved by the Contracting Officer, stating that the item has been tested in accordance with the specified organization's publication. Where equipment or materials are specified to conform to publications, the manufacturer of the product shall submit a certificate of compliance stating the equipment or materials meet or exceed the performance, design, and product requirements of the referenced publications.

1.2.4 Certified Test Reports

The testing requirements in referenced publications for materials will be waived provided the manufacturer's original certificates are submitted stating that previously manufactured materials have been tested by approved laboratories, that such materials meet testing requirements specified, and that the materials furnished for this project are of the same type, quality, manufacture and make as those tested; copies of the test reports need not be submitted except as specifically requested by the Contracting Officer.

1.2.5 Manufacturer's Certificates of Compliance

Submit certification from manufacturer attesting that materials and equipment to be furnished for this project comply with the requirements of this specification and of the referenced publications. Pre-printed certifications will not be acceptable; certifications shall be the manufacturer's original; certifications shall be not more than one year old. The certification shall not contain statements that could be interpreted to imply that the product does not meet all requirements specified, such as "as good as;" "achieve the same end use and results as materials formulated in accordance with the referenced publications;" "equal or exceed the service and performance of the specified material." The certification shall simply state that the product conforms to the requirements specified. Certificates shall be signed by the manufacturer's official authorized to sign certificates of compliance.

1.3

POSTED OPERATING INSTRUCTIONS

Furnish approved operating instructions for each principal item of equipment for the use of operation and maintenance personnel. The operating instructions shall include wiring diagrams, control diagrams, and control sequence for each principal item of equipment. Operating instructions shall be printed or engraved, and shall be framed under glass or in approved laminated plastic and posted where directed. Operating instructions shall be attached to or posted adjacent to each principal item of equipment including start up, proper adjustment, operating, lubrication, shut-down, safety-precautions, procedure in the event of equipment failure, and other items of instruction as recommended by the manufacturer of each item of equipment. Operating instructions exposed to the weather shall be made of weather-resisting materials or shall be suitably enclosed to be weather protected. Operating instructions shall not fade when exposed to sunlight and shall be secured to prevent easy removal or peeling. Operating instructions shall be dual language (English and Italian).

1.4

OPERATION AND MAINTENANCE MANUAL

Furnish an operation and maintenance manual in both the Italian and English language for each item of equipment. Furnish three copies of the manual bound in hardback binders or an approved equivalent. Furnish one complete manual prior to the time that equipment tests are performed, and furnish the remaining manuals before the contract is completed. Inscribe the following identification on the cover: the words OPERATION AND MAINTENANCE MANUAL, in both the Italian and the English languages, the name and location of the equipment or the building, the name of the Contractor and the contract number. The manual shall include the names, addresses and telephone numbers of each subcontractor installing equipment, and of the local representatives for each item of equipment. The manual shall have a table of contents and be assembled to conform to the table of contents with the tab sheets placed before instructions covering the subject. The instructions shall be legible and easily read, with large sheets of drawings folded in. The manual shall include: wiring and control diagrams with data to explain detailed operation and control of each item of equipment; a control sequence describing start-up, operation and shut-down; description of the function of each principal item of equipment; the procedure for starting; the procedure for operating; shut-down instructions; installation instructions; maintenance instructions; lubrication schedule including type, grade, temperature range and frequency; safety precautions, diagrams and illustrations; test procedures; performance data; and parts lists. The parts list for equipment shall indicate the sources of the supply, recommended spare parts and the service organization which is reasonably convenient to the project site. The manual shall be complete in all respects for equipment, controls, accessories and associated appurtenances provided.

1.5

INSTRUCTIONS TO GOVERNMENT PERSONNEL

Furnish the services of competent instructors to give full instruction to the Government personnel in the adjustment, operation and maintenance, including pertinent safety requirements of each item of equipment and each system. Each instructor shall be thoroughly familiar with all parts of the installation and shall be trained in operating theory as well as practical operation and maintenance work. Instruction shall be given during the first regular work week after the equipment or system has been accepted and turned over to the Government for regular operation. Provide 4 workdays (8-hours) of instruction to cover all operation and maintenance of equipment and control systems. Instructor shall use the Division 15 “Operation and Maintenance Manual” as a basis for the training. Provide two complete manuals to the Owner for the training.

1.6

DELIVERY AND STORAGE

Properly store, adequately protect and carefully handle equipment and materials to prevent damage before and during installation. Handle, store, and protect equipment and materials in accordance with the manufacturer's recommendations. Replace damaged or defective items.

1.7

CATALOGED PRODUCTS

Materials and equipment shall be cataloged products of manufacturers regularly engaged in production of such materials or equipment and shall be manufacturer's latest design that complies with the specification requirements. Materials and equipment shall duplicate items that have been in satisfactory commercial or industrial use. Where two or more items of the same class of equipment are required, these items shall be products of a single manufacturer; however, the component parts of the items need not be the products of the same manufacturer. Each item of equipment shall have the manufacturer's name, address, model number and serial number of the nameplate securely affixed in a conspicuous place; the nameplate of the distributing agent will not be acceptable.

1.8

VERIFICATION OF DIMENSIONS

Coordinate the proper relation of the work to the building structure and to the work of all trades. Visit the premises and become familiar with the dimensions in the field, and advise the Contracting Officer’s Technical Representative of any discrepancy before performing any work.

1.9

MANUFACTURER'S RECOMMENDATIONS

Where installation procedures or any part thereof are required to be in accordance with the recommendations of the manufacturer of the material being installed, printed copies of these recommendations shall be furnished to the Contracting Officer prior to installation. Installation of the item will not be allowed to proceed until the recommendations are received. Failure to furnish these recommendations can be cause for rejection of the material.

1.11

ELECTRICAL REQUIREMENTS

Where motors are indicated to be served electrically from a motor control center, the motor starters shall be provided as part of the motor control center as specified in Section 16402, "Interior Distribution Systems." Furnish controllers, contactors and disconnect switches where they are part of packaged equipment. Motors, controllers, contactors, and disconnect shall conform to and shall have electrical connections provided under Section 16402, "Interior Distribution Systems." Furnish internal wiring for components of packaged equipment as an integral part of the equipment. Extended voltage range motors will not be permitted. Controllers and contactors shall have a maximum of 220v control circuits, and auxiliary contacts for use with the controls furnished. When motors and equipment furnished are larger than sizes indicated, the cost of additional electrical service and related work shall be at the expense of the Contractor included under the section that specified that motor or equipment. Power wiring and conduit for field installed equipment shall be provided under and conform to the requirements of Section 16402, "Interior Distribution Systems."

1.11

ACCESS PANELS, WALL AND CEILING

Specified in Section 05500, "Metal Fabrications".

PART 2 - PRODUCTS (Not Applicable)

PART 3 - EXECUTION

3.1

PAINTING OF NEW EQUIPMENT

Equipment painting, factory applied or shop applied, shall be as specified herein, and provided under each individual section of this specification.

3.1.1 Factory Painting Systems

Manufacturer's standard factory painting systems may be provided. If manufacturer's standard factory painting system is being proposed for use in lieu of the shop painting systems, certifications that the manufacturer's standard factory painting system conforms to the heat resistance requirement shall be submitted.

3.1.2 Shop Painting Systems

Clean, pretreat, prime and paint metal surfaces except aluminum surfaces that shall not be painted. Apply coatings to clean dry surfaces. Clean the surfaces to remove dust, rust, oil and grease by wire brushing and solvent degreasing prior to application of paint, except metal surfaces subject to temperatures exceeding 50oC shall be cleaned to bare metal. Where more than one coat of paint is specified, apply the second coat after the preceding coat is thoroughly dry. Lightly sand damaged painting and retouch before applying the succeeding coat. Finished coat color shall be aluminum or light gray.

3.1.2.1 Metal Surfaces Subject to Temperature Less than 50oC

Immediately after cleaning, the metal surfaces shall receive one coat of pretreatment primer applied to a minimum dry film thickness of 0.008 mm, one coat of primer applied to a minimum dry film thickness of one mil 0.025 mm per coat; and two coats of enamel applied to a minimum dry film thickness of 0.025 mm per coat.

3.1.2.2 Metal Surfaces Subject to Temperatures Between 50oC and 204oC

Surfaces shall receive two coats of heat-resisting enamel applied to a total minimum thickness of 0.05 mm.

3.1.2.3 Metal Surfaces Subject to Temperatures Greater than 204oC

Surfaces shall receive two coats of 315oC heat-resisting paint applied to a total minimum dry film thickness of 0.05 mm.

3.2

IDENTIFICATION OF PIPING

All piping except sanitary waste and vent shall have color-coded identification. Identification may be by painting and stenciling or by the use of plastic pressure-sensitive adhesive tape installed at maximum 3-meter intervals, and at all horizontal/vertical changes in direction, and at all taps (tees). Piping, except sprinkler systems, shall be identified by black lettering (fluid identification and service i.e. supply or return, and direction of flow) stenciled or lettered on a color-coded background. Color coding shall be in accordance with UNI 5634. Background colors shall be a minimum of 300 mm by 50 mm with minimum 50 mm letters. Identification shall be provided in English and Italian and placed on piping so that it is easily visible. For sprinkler piping see Section 13930, “Wet Pipe Fire Suppression Sprinklers." Provide piping identification code framed under glass and installed where directed.

3.3

VALVE IDENTIFICATION

Provide for each manually operated valve, except exposed sanitary fixture shut-off valves, a brass or approved non-ferrous material tag securely mounted or attached to the valve. Provide valve schedules indicating number, service or function, area or devices served and position (normally open "NO" or normally closed "NC"). Frame schedules under glass and mount where directed.

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Section 15050

Section 15050