Applicable_Master_Specs.pdf

Section 01100 1

SECTION 01100

GENERAL CONDITIONS

PART 1 – APPLICABLE NORMS

1.1 The Italian norms for building works and the instructions of materials suppliers shall be strictly observed for the execution of the works. In addition the general safety regulations for construction and the Base regulation for traffic, accidents and fire fighting shall be observed as follows:

a. UNI Norms – Demolition works; masonry works, pavement works, concrete reinforcement bars, structural steels, pipes, painting, plumbing, heating system and electrical system.

b. C.N.R.; ASTM; AASHTO norms – Aggregates, bitumen, bituminous mixtures and road works in general.

c. Legislative Decree No. 494 dated 14 August 1996.

d. Legislative Decree No. 528 dated 19 November 1999.

e. CEI norms in force at tender date.

f. UNEL norms in force at tender date.

g. ENPI norms in force at tender date.

h. NEC norms in force at tender date.

i. AFPM 91-210 Contract Safety.

j. AFI 91-202 Safety Program Management.

The manuals and regulations relative to paragraphs i and j, will be available for review at the Engineering Office, Bldg 407 of Aviano Air Base, during normal working hours, from Monday to Friday, from 0800 to 1700 hrs. Further clarifications regarding the type of materials and the work specified in the Schedule to Work items or indicated in the drawings, will be provided during the site survey scheduled prior to the submittal of proposal.

1.2 CERTIFICATION OF COMPLIANCE WITH ITALIAN LAWS

1.2.1 Static Load Testing

The Contractor shall comply with the pertinent articles of Italian Law

1086 dated 5 November 1971, and all subsequent revisions. The Contractor shall be fully responsible for construction, supervision, static load tests, final testing, and for all costs associated with this procedure.

Article 2 of Law 1086, as amended, requires the static load tests to be performed under the supervision of an engineer or architect registered on the National Professional Rolls of Italy for at least ten years (10).

Prior to performing the tests, submit to the Contracting Officer the names and certified credentials of proposed testing personnel, engineer(s) or architect(s) they propose to perform the static load testing.

2 Section 01100

1.2.2 Mechanical and Electrical Work Certifications

As a condition of final acceptance of the work, the Contractor shall submit to the Contracting Officer a certificate of compliance for all contract work certifying that all electrical and mechanical work complies with Law No. 46 dated 5 March 1990, and that the provided work is adequate and safe for the designated use.

1.2.3 Other Certifications

In addition to the certifications listed above, the Contractor shall provide all other certifications and testing required by Italian Law.

Such certifications may include but are not limited to the following:

a. Certificate of compliance for electrical systems in accordance with CEI regulations and with D.P.R. No.547 dated 27 April 1955 on accident prevention.

b. Certificate of compliance for heating systems above 100,000 kcal/hr in accordance with Italian Law No. 373 dated 30 April 1976.

c. Certificate of compliance for fire prevention systems in accordance with Ministerial Decrees dated 16 February 1982 and 8 March 1985.

d. Certificate for elevator systems test in accordance with Italian Law No. 1415 dated 24 October 1942.

PART 2 – MATERIALS

2.1 All materials shown on drawings and listed in the Schedule of Work

Item or anyhow necessary for the accomplishment of project will be furnished and installed by the Contractor except those shown on drawings which will be furnished and installed by the U.S.A. Government and installed by the Contractor.

2.2 DEMOLITION AND INTERVENTION WORK ON EXISTING STRUCTURES

During possible partial demolition or intervention operation of bearing structures the Contractor shall provide for the shoring of existing structures, for the safety of personnel and building, being responsible for any accident and/or damage. Shoring will be performed in a way to assure the integral conservation of structures not to be demolished or modified. Shoring shall be inspected by Contracting Officer’s Technical Representative prior to proceeding with any demolition work of structural elements.

2.3 REMOVED MATERIALS

The materials to be removed, (specified on drawings and/or on the Schedule of Work Items) shall be handled as follows:

2.3.1 Unsalvageable materials

Shall be transported to public dump in accordance with Italian communal norms in force. The Contracting Officer’s Technical Representative shall determine which materials are unusable. Under no circumstances will the Contractor attempt to sell or otherwise use such material unless and until he first obtains, the necessary permits, licenses etc. from the

Section 01100 3

Italian Government Officials and will hold the U.S. Government free and harmless from his failure to do so.

2.3.2 Salvageable materials

Shall be loaded, unloaded and stacked at a warehouse of Aviano Air Base.

The Contracting Officer’s Technical Representative shall determine which material is salvageable and the storage location. Maximum distance will be 15 km.

2.3.3 Materials to be reused in the project

Shall be removed with care and stored by the Contractor on site, after inspection of operating state of such fixtures which will be done jointly with the Contracting Officer’s Technical Representative. The Contractor shall be fully responsible for preservation of such fixtures and before their installation, in the location he shall provide for cleaning and rehabilitation work.

2.4 SELECTION OF EQUIPMENT, MATERIALS AND COLORS

The Contracting Officer’s Technical Representative will select equipment, materials and colors from among the charts and factory samples which will be submitted by the Contractor and approved by the Government in accordance with the indications of the project documents. It will be the Contracting Officer’s Technical Representative’s option to request all samples and catalogues of materials to be incorporated in the project to ensure the satisfactory and proper completion of the work. All samples shall be returned to Contractor.

2.5 SUBMITTALS

This paragraph applies only to those items not subject to the “brand name or equal” provision of the contract and listed in AF Form 3052. Within 15 days from the date of notice to proceed, or in accordance with the prescriptions given by the Contracting Officer, the Contractor shall submit Contracting Officer’s Technical Representative’s approval the data requested by the project documents and listed in the paragraph entitled “Material Approval” in order to ascertain that the material corresponds to the technical characteristics of the project. The submittals consisting of AF Form 3000, and catalog contracts (4 copies), beside the samples, will be in English or Italian with the English translation attached. The list preparation shall be coordinated with the work schedule keeping in mind that the Government needs at least 15 days for the approval. Every disapproved item shall be resubmitted following the same procedure. A copy of the AF Form 3000 and relative attachments will be returned to the Contractor. No work will be started prior to obtaining the approval for the proposed material and equipment. The approval of submittals does not relieve the Contractor of responsibility for proper application and installation of the items, of other evident or hidden defects. Shop drawings, for electric equipment shall include construction drawings, diagrams and schematics for power circuits and control circuits, and component reference list.

2.6 USE OF BRAND NAMES IN SPECIFICATIONS

Unless otherwise specifically provided on this contract, reference to any equipment, material article or patented process by trade name, make or cat number shall be regarded as establishing a standard of quality and

4 Section 01100 shall not be construed as limiting competition, and the Contractor may, at his option use any equipment, material, article, or process which, in the judgment of the Contracting Officer’s Technical Representative, is equal to that named. The Contractor shall furnish to the Contracting Officer’s Technical Representative all required data and samples as may be called for the these technical provisions or which the Contracting Officer’s Technical Representative determines necessary for approval prior to use of the items during work performance.

2.7 “EQUIVALENT” ITEMS PROPOSED BY CONTRACTOR

If the Contractor intends to propose “brand names” different than the ones specified by U.S. Government, he will clearly indicate the “equivalent” proposed item, the manufacturer, type, catalog No., etc. in the List of Equivalent Proposed Items attached to AF Form 3052 which shall be returned to the Government together with the proposal. Each equivalent item listed shall be supported by the relative technical documentation (catalog cuts, certificates, technical descriptions, calculations, etc.) in order to prove the equivalency of the technical characteristics of the product listed in the project document. Such documentation shall also be attached to the proposal.

2.8 INFORMATION DATA

Prior to work completion date and if expressly requested by project documents will submit the following information data in English and Italian:

2.8.1 Manufacturer’s literature

Catalog extracts for all items (materials and equipment) furnished, in accordance with project documents.

2.8.2 Parts List

List of furnished items, in accordance with project documents:

a. Item description

b. Current unit price

c. Reference to manufacturing Firm

2.8.3 Manufacturer’s Address

List of materials and equipment suppliers, in accordance with project documents.

a. Firm Name

b. Complete address and telephone number

c. Reference to parts list

2.8.4 Operation and Maintenance Manuals

At work completion date, the Contractor shall submit three (3) copies of operation and maintenance manuals of all equipment installed.

Section 01100 5

2.8.5 Operation Test Reports

In accordance with project documents, prior to work completion date, the

Contractor shall perform balancing and testing of each system installed and will submit three (3) copies of testing report containing recorded data of readings performed during tests.

PART 3 – SITE CONDITIONS

3.1 WORKING HOURS

Normal working hours authorized on base, are from 0800 to 1700 hrs., Monday through Friday. Any working hours different from the authorized hours must be previously approved by the Contracting Officer.

3.2 UTILITY CUT-OFF

When interruption of existing utilities is deemed necessary for the installation of the lines or equipment, the Contractor shall submit a written request, to the Contracting Officer of his authorized representative for approval ten (10) days prior to his scheduled starting of work. For the electrical cut-off the request shall be submitted (10) ten days prior the scheduled starting of work. Such interruption shall not be started before receipt of the approved request, nor shall interruptions request be submitted at the end of the week (from Friday through Sunday). The request shall state the duration of interruptions and the description of work to be done.

3.3 STORAGE SHED

It will be Contractor’s option to provide one or more storage sheds to store materials and work tools. The available area, for the assembly of such shed, shall be indicated by the designated representative of the Contracting Officer’s Technical Representative. At work completion the shed shall be disassembled and the area shall be restored to its original condition.

3.4 AIRFIELD SAFETY TRAINING

The Contractor shall contact Airfield Management to receive flightline driver and airfield safety training prior to start of any work beginning on the flightline.

3.5 TRANSPORTATION OF PERSONNEL AND MATERIALS

It will be the Contractor’s responsibility to transport the personnel to and from the job site and to load, transport, unload and place all supplies, materials and equipment involved in this contract.

3.6 UTILITIES

Electric power, existing grounding system and water available in the area, will be made available to the Contractor by the U.S. Government.

Connections and disconnections will be at Contractor’s expense and utilities are to be restored to their original condition at no extra cost to the Government. All damages caused, if any, to the existing utilities will be repaired immediately at Contractor’s expenses, also in case that such repairs are made by Government’s personnel and as directed by the

6 Section 01100

Contracting Officer’s Technical Representative. Before starting the works, the Contracting Officer will indicate the point wherefrom water and electric power will be taken. The Contractor will be entitled to provide for himself, if desired, a generating set, and his own expense.

The electrical characteristics of available power will be indicated in project documents.

3.7 TOILET FACILITY

The toilet facilities available in the vicinity of site of work may be used by Contractor’s personnel provided there are no instructions to the contrary in the project documents.

3.8 EXCAVATIONS

The Contractor shall initiate no excavation work prior to receiving an approved AF Form 103. This form will be prepared by U.S. Government personnel.

PART 4 - LABOR

All installation and construction operations, calibrations and tests during service, etc, shall be performed in a workmanlike manner by skilled tradesmen being qualified to perform the most difficult operations pertaining to their respective craft. The use of common labor for operations normally assigned to skilled tradesmen will not be accepted.

PART 5 – DEFINITIONS

As used throughout this master specification set the terminologies used such as: project, drawings, project documents and documents mean the additional specifications. Schedule of Work Items, Drawings and other documents which compose the specific individual project to be performed and for which a proposal is solicited separately.

PART 6 - ORDER OF PRECEDENCE

In case of conflict between this master specification set and the individual project documents, the difference shall be resolved by giving precedence to the individual project documents.

-- End of Section --

Section 01101 1

SECTION 01101

PROJECT SIGN

PART 1 - PROJECT SIGN

1.1 Scope

Furnish labor and material required for the construction and painting of a sign as shown on the attached sketch.

PART 2 - GENERAL

The Contractor shall identify the project by means of an appropriate sign mounted in a conspicuous area of the work site, as indicated by the Contracting Officer or his designated representative. The sign shall be erected within 10 days of initiation of work at the job site. The sign shall be 120 cm wide x 80 cm high and shall be constructed of a material suitable to withstand exposure to inclement weather for the duration of the contract, and must not show evidence of warping, cracking, or other defects. The sign shall have a blue background with white lettering, and shall contain the following information in English:

a. Project No.

b. Project description

c. Constructed under Supervision of Base Civil Engineering

d. Contracted by 31st Contracting Squadron

e. Contractor

f. Design Engineer

g. Inspector

h. Contract Management: 31 CONS Construction Flight

i. ERP Coord

Lettering of the sign will be as shown on the following sketch, and may be painted or stenciled directly on sign. The sign will remain the property of the Contractor, and shall be promptly removed upon completion of the project.

2 Section 01101

Section 15050 1

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

2 Section 15050 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

Section 15050 3 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

4 Section 15050 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

Section 15050 5 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.

Section 15080 1

SECTION 15080

INSULATION FOR MECHANICAL SYSTEMS

The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by the basic designation only.

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA) CODE:

No. 255-1984 Surface Burning Characteristics of Building

Materials

ITALIAN LAW 30 APRIL 1976 - NO. 373:

"Standards for Energy Consumption in Buildings for Thermal Use." As modified by Law 10/91 and by DPR 4/2/93.

ITALIAN NATIONAL INSTITUTE FOR THE UNIFICATION OF STANDARDS (UNI)

PUBLICATIONS:

UNI 6823 (1998) Mineral Wool Products for Thermal and Acoustical Insulation - Determination of Non-Fibrous Material Content - Floatation Method.

1.2 RELATED REQUIREMENTS

The provisions of Section 15050, “Basic Mechanical Materials and Methods”, apply to this section.

1.3 MECHANICAL SYSTEMS INSULATION

Provide insulation for mechanical systems. Mechanical systems shall include plumbing, HVAC (heating, ventilating, and cooling) ductwork, equipment, and piping which is located within buildings, on buildings, and adjacent to buildings. Clean, inspect and test mechanical system and obtain written approvals (of test and inspections) from the Contracting Officer’s Technical Representative prior to the application of insulation. Section 15050, "Basic Mechanical Materials and Methods," applies to this section, with the additions and modifications specified herein.

1.4 SUBMITTALS

1.4.1 Manufacturer's Data

a. Pipes insulation

b. Ducts insulation

c. Equipment insulation

d. Jackets

e. Aluminum jackets

PART 2 - PRODUCTS

2.1 INSULATION MATERIALS

Products containing asbestos will not be permitted.

2 Section 15080

2.2 DUCT INSULATION

Provide insulation with fire-retardant vapor barrier jacket (laminate kraft paper and aluminum foil reinforced with fibrous glass yarn).

2.2.1 Blanket Type Duct Insulation

Fibrous glass insulation, minimum density of 16 kg/m3, minimum of 50 mm thick. Average thermal conductivity shall be 0.040 W/moC at 24oC.

2.2.2 Rigid Type Duct Insulation

Fibrous glass insulation, minimum density of 48 kg/m3, minimum of 50 mm thick. Average thermal conductivity shall be 0.033 W/moC at 24oC.

2.3 PUMP INSULATION

2.3.1 Cellular Glass Insulation

Minimum of 50 mm thick. Average thermal conductivity shall be 0.06 W/moC at 94oC.

2.3.2 Fibrous Glass Insulation

Minimum density of 96 kg/m3, minimum of 50 mm thick. Average thermal conductivity shall be 0.036 W/moC at 50oC.

2.3.3 Polyurethane or Polyisocyanate Insulation

Minimum density of 27 kg/m3, minimum of 50 mm thick. Average thermal conductivity shall be 0.023 W/moC at 24oC .

2.4 INSULATION FOR EXPANSION TANKS, AIR SEPARATOR, DOMESTIC HOT WATER

STORAGE TANKS

2.4.1 Cellular Glass Insulation

Minimum of 100 mm thick. Average thermal conductivity shall be 0.06 W/moC at 94oC .

2.4.2 Fibrous Glass Insulation

Minimum density of 96 kg/m3, minimum of 50 mm thick. Average thermal conductivity shall be 0.033 W/moC at 24oC .

2.4.3 Calcium Silicate Insulation

Minimum of 100 mm thick. Average thermal conductivity shall be 0.06 W/moC at 94oC.

2.5 INSULATION FOR CHILLERS

Provide insulation for cold surfaces which are not factory insulated.

2.5.1 Polyurethane or Polyisocyanate Insulation

Density of 27 kg/cm3, minimum of 50 mm thick. Average thermal conductivity shall be 0.038 W/moC at 24oC .

2.5.2 Plastic Foam Insulation

Minimum of 50 mm thick. Average thermal conductivity shall be 0.038 W/moC

Section 15080 3 at 24oC

2.6 PIPING INSULATION

Provide insulation with fire-retardant vapor barrier jacket.

2.6.1 Fibrous Glass Insulation

Minimum density of 48 kg/m3. Average thermal conductivity shall be 0.033 W/moC at 24oC.

2.7 ALUMINUM JACKET

Minimum thickness of 0.4 mm, with factory-applied polyethylene and kraft paper moisture barrier on inside surface. Provide smooth surface jackets for jacket outside diameters less than 200 mm. Provide corrugated surface jackets for jacket outside diameters 200 mm and larger. Provide stainless steel bands, minimum width of 13 mm. Provide aluminum covers for fittings.

2.8 INSULATION

Insulation for fire pump is specified in Section 13930 “Wet Pipe Fire Suppression Sprinklers”.

PART 3 - EXECUTION

3.1 INSTALLATION

Clean and test mechanical systems prior to the application of insulation.

Products containing asbestos will not be permitted. Insulation materials including the completed installation shall have a fire hazard rating in accordance with NFPA 255; flame-spread rating shall not exceed 25 and smoke developed ratings shall not exceed 50 except as specified herein; smoke developed rating shall not exceed 150 for polyurethane and polyisocyanate insulations. Surfaces to be covered with insulation shall be tested for leaks, cleaned of foreign material including rust, scale, and dirt; and dried prior to application of insulation. Insulation shall be clean and dry when installed and prior to the application of jackets and coatings. Do not use short pieces of insulation materials where an entire length section will fit. Provide insulation materials and jackets with smooth and even surfaces, with jackets drawn tight, and smoothly secured on longitudinal laps and end laps. Insulate fittings and piping accessories with premolded, precut, or field fabricated pipe insulation of the same pipe insulation and thickness as the adjoining pipe insulation. Provide unions, flanges, and piping accessories with readily removable sections of insulation. Provide insulation continuous through pipe hangers, pipe supports, pipe sleeves, wall openings, and ceiling opening, except at fire dampers in duct systems.

Provide a complete moisture and vapor seal wherever insulation terminates against hangers, anchors, and other projections through insulation on cold surfaces; fill joints, breaks, punctures, and voids with vapor barrier compound and cover with vapor-sealed material. Do not conceal equipment nameplates. Cover ends of exposed insulation with waterproof mastic.

3.2 DUCT INSULATION

Clean and test ductwork prior to the application of insulation. Provide insulation on exterior side of supply ductwork, return ductwork, outside air intake ductwork, plenums, and casings of HVAC units which are not internally insulated. Return air ductwork located within a return air plenum (i.e., space above a ceiling and used for return air) does not require insulation.

Provide insulation with a vapor barrier laminate of flame-resistant kraft paper and aluminum foil reinforced with fibrous glass yarn. Apply

4 Section 15080 insulation with joints tightly butted. Pins or anchors shall be spaced at maximum 300 mm centers; secure insulation with washers and clips. Pins or anchors shall be metal electrically welded to duct surface or shall be metal attached to duct surface with waterproof adhesive especially designed for attachment to metal surfaces. Sagging of duct insulation will not be permitted. Insulation shall be tightly and smoothly applied to the duct.

Secure insulation to metal ducts with a fire-resistant, waterproof bonding adhesive applied in 100 mm wide strips on 300 mm centers. Provide rigid type duct insulation in mechanical equipment rooms, where ductwork is exposed to view and where indicated; provide blanket type duct insulation in other locations.

3.2.1 Blanket Type Duct Insulation

Blanket type flexible fibrous glass insulation, minimum density of 16 kg/m3, minimum of 50 mm thick. Secure blanket type insulation to bottom of rectangular horizontal and sloping ducts more than 600 mm wide, in addition to adhesive, by impaling over pins or anchors; secure insulation with washers and clips.

3.2.2 Rigid Type Duct Insulation

Fibrous glass insulation, minimum density of 48 kg/m3, minimum of 50 mm thick. Secure rigid type insulation to duct by impaling over pins and anchors located not more than 80 mm from edge of insulation and spaced at maximum 300 mm centers; secure insulation with washers and clips. Around ductwork, internal insulation edges shall be beveled to suite curvature of ducts.

3.2.3 Vapor Barrier

Fill joints, breaks, punctures, and voids with vapor barrier coating compound and cover with vapor barrier jacket. At joints, the vapor barrier jacket for insulation shall be covered with a 100 mm wide pressure-sensitive vapor seal tape of material identical to jackets, or shall have 50 mm wide laps drawn tight and secured with vapor seal adhesive. The joints and openings where the facing is pierced or punctured by pins, staples, or other means shall be brush-coated with 50 mm wide strips of vapor barrier coating compound.

3.3 EQUIPMENT INSULATION

Clean and test equipment prior to the application of insulation.

3.3.1 Pump Insulation

Cellular glass insulation, minimum of 50 mm thick: fibrous glass insulation, minimum density of 96 kg/m3, minimum of 50 mm thick; or polyurethane or polyisocyanate insulation, minimum density of 27 kg/m3, minimum of 50 mm thick. Provide chilled water and hot water pumps with insulated metal casings properly shaped for a correct fit and designed for easy removal and replacement. Joints shall coincide with joints in each pump casing. Apply insulation with fibrous glass fabric. Apply fabric in waterproof adhesive. Coat fabric with waterproof aluminum-pigmented mastic to a minimum total thickness of 3 mm.

3.3.2 Insulation for Expansion Tanks, Air Separators, Domestic Water Heater, Exposed Equipment for Heating, Chilled and Domestic Water Systems

Cellular glass insulation, minimum of 100 mm thick; fibrous glass insulation, minimum density of 96 kg/m3, minimum of 50 mm thick; or calcium silicate insulation, minimum of 100 mm thick; or polyurethane or polyisocyanate insulation, minimum of 50 mm thick. Secure insulation with

Section 15080 5

No. 1.6 mm galvanized steel or copper-clad wire or 20 mm wide, 0.4 mm thick galvanized bands, each spaced on 300 mm centers. Miter or score block to ensure tight joints. Seal joints with insulating mastic. Provide insulation with 13 mm thick hard-finish cement applied over zinc-coated wire netting; finish with fibrous glass fabric, smoothly adhered with waterproof adhesive. Coat fabric with waterproof aluminum-pigmented mastic to a minimum total thickness of 3 mm.

3.4 PIPING INSULATION

Clean and test aboveground piping systems prior to the application of insulation. Insulate fittings with the same material and thickness as adjacent runs of pipe. Pipe insulation shall be continuous through wall and floor openings, and pipe sleeves except where otherwise detailed. Sleeves shall be sized accordingly. For hot water piping inside building that is located more than 1.8 m above the floor, terminate the insulation immediately adjacent to each end of unions, flanges, pressure-regulating valve assemblies, trap assemblies, strainers, and valves. Pipe insulation shall be continuous through hangers. For insulation protection shields provide rigid pipe insulation of the same thickness as adjacent pipe insulation and having a minimum compressive strength of 240 kPa or provide hardwood plugs having a minimum of 6.5 cm2 bearing surface with the wood grain perpendicular to the pipe, between the insulation protection shield and the pipe; except insulation having a minimum density of 112 kg/m3 may be provided between the insulation protector and the pipe for piping 50 mm and smaller. Install pipe insulation with joints tightly butted. Overlap longitudinal jacket laps not less than 40 mm. Wrap butt joints with butt strips not less than 80 mm wide of identical material to jacket. Cement jacket laps and butt strips on both surfaces with fire-resistant, waterproof bonding adhesive or with factory-applied self-sealing system. Staples shall be stainless steel, outside clinched without complete penetration of insulation. If vapor barrier jacket is pierced or punctured, brush coat with vapor barrier coating to provide a vapor-tight covering. For concealed hot water piping, adhesive is not required when jacket is secured with flared staples on 100 mm centers. If molded or mitered fitting covers are used, join with fire-resistant, waterproof bonding adhesive or wire in place and provide with a smooth coat of finishing cement. For copper tubing sizes 25 mm and less, pipe insulation for elbows, tees, and valves may be mitered.

3.4.1 Insulation for Chilled Water, Heating Hot Water, Domestic Water, and

Cold Drain Piping from Drain Pans

Fibrous glass insulation, minimum density of 48 kg/m3 with a factory-applied vapor barrier jacket; or polyurethane or polyisocyanate insulation with a vapor barrier jacket. For chilled water piping and hot water piping, the ends of pipe insulation and the space between the ends of pipe insulation and the piping shall be sealed off with waterproof vapor-barrier coating at and around valves, fittings, flanges, unions, and in pipe runs at intervals not to exceed 4.5 meters.

3.4.1.1 Chilled Water, Hot Water and Domestic Hot Water Piping

Fibrous glass insulation thickness for the various pipe sizes shall be in accordance with Law No. 373, 30 April 1976 as modified by Law 10/91 and DPR 4/2/93, as listed below for a fluid temperature less than (85oC):

Pipe Size Fibrous Glass Insulation Thickness Millimeters Average Thermal Conductivity

0.041 W/moC at 50oC

Indoors Outdoors

6 Section 15080

15 mm 25 mm 30 mm 20 mm - 40 mm 30 mm 40 mm 50 mm - 80 mm 40 mm 50 mm 100 mm 50 mm 60 mm 150 mm 50 mm 60 mm 200 mm 60 mm 75 mm

3.4.1.2 Cold Drain Piping

Pipe shall have minimum of 25 mm thick fibrous glass insulation. Do not insulate cold drain piping exposed to the weather.

3.4.1.3 Cold Domestic Water Piping

Pipe sizes less than 80 mm shall have minimum of 25 mm thick fibrous glass insulation. Pipes sizes of 80 mm and 100 mm shall have minimum of 40 mm thick fibrous glass insulation. Pipe sizes 125 mm and larger shall have minimum of 50 mm thick fibrous glass insulation. Waste and (hot) water supply pipes for handicapped lavatories shall be insulated with 40 mm thick insulation.

3.4.2 Insulation Covering Not Exposed to the Weather

Provide piping insulation, except for plastic foam insulation, with manufacturer's standard fire-retardant vapor barrier jacket. Contractor may use one-piece pre-mold polyvinylchloride fitting covers with fibrous glass insulation inserts of same thickness as pipe insulation.

3.4.3 Insulation Covering Exposed to the Weather

Provide piping insulation with aluminum jacket, except for plastic foam insulation. Install electric heat tape on piping, where indicated, prior to installing insulation. Machine cut the jacket to produce a straight, smooth edge. Lap longitudinal seams and circumferential seams not less than 50 mm.

Install jackets on horizontal piping with the longitudinal seam approximately midway between horizontal centerline and the bottom side of pipe. Install with the top edge of jacket overlapping the bottom edge of jacket with the seam of each jacket slightly offset from the seam of the adjacent jacket. Install jackets on vertical piping and on piping pitched from the horizontal from low point to high point so the lower circumferential edge of each jacket overlaps the jacket below it. Provide special fabricated jackets for fittings, valves, and flanges. Finish jackets neatly at pipe hangers and pipe supports. Terminate jackets neatly at the ends of unions, valves, traps, and strainers. Secure jacket with stainless steel bands spaced not more than 200 mm on centers.

3.5 PAINTING AND IDENTIFICATION

Painting shall be in accordance with Section 09900, "Paints and Coatings."

Piping identification shall be in accordance with Section 15050, "Basic Mechanical Materials and Methods."

3.6 FIELD INSPECTIONS

Visually inspect the insulation installation of all mechanical systems to ensure that materials conform to requirements specified herein.

Section 15720 1

SECTION 15720

AIR HANDLING AND DISTRIBUTION EQUIPMENT

The publications listed below form a part of this specification to the extend referenced. The publications are referred to in the text by a basic designation only.

AIR-CONDITIONING AND REFRIGERATION INSTITUTE (ARI)

ARI 440 (1993) Room Fan-Coil and Unit Ventilator

ARI 430 (1989) Central Station Air Handling Units

ARI 880 (1989) Air Terminals

ITALIAN NATIONAL INSTITUTE FOR THE UNIFICATION OF STANDARDS (UNI)

PUBLICATIONS

UNI 10339 (1995) Air-Conditioning Systems for Thermal Comfort in Buildings. General, Classification and Requirements. Offer, Order and Supply specifications

UNI 10531 (1995) Industrial Fans. Performance Testing Using Standardized Airways.

UNI EN 1822-1/5 (2002) Cleaning Equipment for Air or Other Gases. Vocabulary

ITALIAN UNION OF MANUFACTURERS OF VENTILATING EQUIPMENT (CO.AER)

NV 101 to 112 Fans, Types, Tests

INTERNATIONAL ELECTROTECHNICAL COMMITTEE (IEC) PUBLICATIONS

IEC 72, 72A Dimensions and Output Ratings for Rotating

Electrical Machines.

EUROPEAN COMMISSION FOR ELECTRICAL STANDARDIZATION (CENELEC) PUBLICATIONS

Document 11.74 European Norms for Motors.

ITALIAN SUPERIOR INSTITUTE FOR ACCIDENT PREVENTION AND SAFETY AT WORK

(ISPESC)

D.P.R. 27 April 1955 No. 547 apply to this section.

1.3 SUBMITTALS

1.3.1 Manufacturer's Data

2 Section 15720

a. Fans

b. AHU, Air Handling Units

c. Variable Air Volume (VVB) Box (Not applicable)

d. Adjustable Frequency Inverters (Not applicable)

e. Series Fan Powered Variable Air Volume (VAV) Terminals (Not applicable)

f. Computer Room Air Conditioner Units (CRAHU) (Not applicable)

g. UH, Unit Heaters (Not applicable)

h. CUH, Cabinet Unit Heaters (Not applicable)

1.3.1.1 Submit to the Contracting Officer’s Technical Representative scale

1:100 for the Building and 1:50 for the mechanical rooms, fully dimensioned, showing locations, conduit studs, floor drains, and equipment pads and foundations. For all equipment, also provide sections showing all components. At the completion of the job, one set of mylar sepias shall be submitted to the Contracting Officer as an as-built record.

1.3.2 Operation and Maintenance Manuals

c. Series Fan Powered Variable Air Volume (VAV) Terminals (Not applicable)

d. Variable Air Volume (VVB) Box (Not applicable)

e. Adjustable Frequency Inverters (Not applicable)

f. Computer Room Air Conditioner Units (CRAHU) (Not applicable)

1.3.3 Posted Operating Instructions

a. Instruction Manual

1.3.3.1 Installation Manual

Provide for each piece of equipment.

1.4 CORROSION PROTECTION

All equipment shall have a zinc-coating or a duplex coating of zinc and paint.

1.5 CONTROLS

Controls are specified in Section 15901" Space Temperature Control System".

2.1 EQUIPMENT

Equipment using refrigerants R-11, R-12, R-113, R-114, R-115, R-500, or refrigerants with Ozone Depletion Factor (ODF) greater than 0.05 shall not be permitted.

2.2 REFRIGERANTS

Equipment using refrigerants R-11, R-12, R-113, R-114, R-115, R-500, or

2.3 FANS

Section 15720 3

Statically and dynamically balanced, with air capacities, brake horsepowers, fan types, fan arrangement, noise level (sound power level), and pressure ratings. Fan bearing life shall be minimum 200,000 hours at maximum operating conditions. Equipment shall have automatic backdraft dampers.

2.3.1 Centrifugal In-Line Fan

Belt driven fans with single inlet and airfoil backward inclined blades.

Construct casings of steel, galvanized steel, or aluminum. Provide removable panels or access doors for inspection and access to internal parts. Reinforce points of support for mounting of units. Make air-tight joints.

2.4 FACTORY FABRICATED AIR HANDLERS (AHU)

2.4.1 Central Station Air-Handling Units (Constant Volume)

Provi…