ASHE_09-1012_SOW_2014_REV_1.doc

DATE: FEB 2014

U.S. AIR FORCE

31ST FIGHTER WING

31ST CES/CEPM

AVIANO AIR BASE, ITALY

TECHNICAL SPECIFICATIONS

PROJECT ASHE 09-1012

RENEWABLE: INSTALL SOLAR HEATING PANELS, 4 DORMS

Fac# 1423, 1424, 1425, 1426

AREA F, AVIANO AIR BASE, ITALY

REVISION #1

1. PROJECT SCOPE

The Contractor shall furnish all personnel, equipment, material, transportation, supervision and any other necessary item and service to design and install a new system of solar heating panels to implement hot sanitary water, in 4 dormitories, fac 1423, 1424, 1425, 1426. System will be drain back system (IMPIANTO A SVUOTAMENTO).

Work items are indicated for each building and include but are not limited to the following:

a. Project design shall be made by a Professional Mechanical Engineer with expertise in the field of “Drain Back” system.

b. Masonry works to enlarge existing mechanical room to house 2ea new “Tank-in-Tank”.

c. Installation of a new “Safety Line” on the dorm roofs.

d. Furnishing and installation of 50 thermal solar panels and associated connection pipelines per each building.

e. Consider the wind load, to be verified according to UNI EN 1991 norms. In the past we had wind speed more than 150 Km/h.

f. Furnishing and installation of 2 each “Tank-in-Tank”, total capacity 4000 Lt . including connections to existing domestic hot water tank.

g. All pipeline must be made of copper or stainless steel and shall have adequate insulation, covered with embossed aluminum sheet. No plastic components allowed.

h. The exisiting boiler room has a water softener that shall be maintained operational and, if necessary, modified based on the new requirements.

i. Work includes on-site training for base maintenance personnel during the start-up and maintenance for system optimization for a two (2) winter cycles period.

Contractor shall submit with his offer a technical schematic proposal / solution / improvement (concept drawing) to obtain the maximum efficiency of the solar system and to limit the use of existing gas fired boiler only for peak demand or in case of inclement weather. Catalog extracts and technical characteristics of the solar panels must also be submitted together with the proposal.

2. WORK SITE CONDITIONS

a. During the execution of the works, Contractor must guarantee the continuity of service of domestic hot water for the showers of the dorm, using temporary equipments and connections. Interruption of maximum 24hrs are permitted and shall be requested in writing by the Contractor at least 10 days in advance.

b. The Contractor is permitted to use reasonable quantities of available electricity and water at the work site. The Contractor shall alter characteristics and shall observe conservation practices at all times. All connections shall be the responsibility of the Contractor, including restorations to initial conditions.

c. Interruption of utilities. Utilities shall not be interrupted until approval is received from the Contracting Officer. Any such need shall be requested in writing by the Contractor at least 10 days in advance of the needed interruption. Requests for utility interruption shall indicate the type of utility to be interrupted, the type of operation requiring the interruption, date and duration. To the maximum extent possible interruption shall be scheduled on week ends or U.S. holidays in order to minimize impact to base activities.

d. Work during week ends or holidays may be requested by the Contractor with a minimum of 10 days advance notice, however the Contracting Officer has the right to deny such request if reasons requiring week end and holiday work are not valid or for security or other necessities.

e. Toilet facilities in the vicinity of the work site shall be available for Contractor use. The Contractor shall use facilities in a manner to maintain their state of cleanliness and hygiene.

f. If welding is to be performed the Contractor shall ensure a welding permit is obtained from the Aviano Air Base Fire Department prior to performing welding operations.

g. The Contractor shall not use base refuse containers to discard debris. All construction debris shall be discarded by the Contractor off base at authorized sites according to category of debris/refuse in strict observance of all host country laws, decrees and local regulations in force.

h. The Contractor shall be responsible for ensuring all personnel engaged in the performance of this contract observe all host country laws concerning safety and in particular Italian laws 626 and 528.

i. The Contractor shall perform no digging until receipt of a completely coordinated AF form 103 from the Contracting Officer. Digging permit will not be issued for the entire contract at one time. Contractor shall submit request for digging permit 15 days prior to excavating in each area segment. Contractor shall clearly mark proposed digging and excavation route with white paint or chalk prior to Government marking.

3. DESIGN REQIREMENTS

a. PERFORMANCE SCHEDULE

Performance schedule authorized is 210 (TWO- HUNDRED and TEN) calendar days after Notice to Proceed (NTP) of which the first 60 (SIXTY) calendar days shall be exclusively for design and site survey and the following 150 (ONE-HUNDRED and FIFTY) calendar days shall be for construction as described in Table 1.

Table 1

[CD]

PROGRESSION

[CD]

NTP = Notice to Proceed

CD = Calendar Days

b. SUBMITTALS

· All submittals shall be in dual language: Italian and English.

· A transmittal sheet must accompany the media containing the information included on the external labels, total number of volumes being delivered, and a list of file names and file descriptions on each volume. The transmittal sheet must also include instructions for reading, restoring, or transferring the files from the media, and certification that all delivery media is free of known computer viruses.

· Prepare typed documents on compact disk (CD) read only memory (ROM) media in “Microsoft© Office 2007” and “Adobe Acrobat 7.0” or latest editions. Prepare A4 (210 x 297 mm) size documents.

· Prepare computer aided design (CAD) drawings on compact disk (CD) read only memory (ROM) media in an AutoCAD Release 2007 "DWG" file format and “Adobe Acrobat 7.0”. Prepare drawings in A2 size.

· Unless otherwise specified in the Statement of Work, each delivery of documents is subject to review and approval by the Contracting Officer.

· Submittal include copies of the minutes of all review comments, items discussed, Contractor answers to Government review comments, discussions, conclusions, agreements, etc.

· A copy of the preferred title sheet and title can be provided in both digital and hard copy upon request.

· When available, the Government will furnish “as built” or construction drawings pertinent to the facilities involved. Such drawings, however, are not warranted to show presently existing conditions at the site. Contractor therefore, shall verify in the field all data shown on such drawings as necessary for accomplishment of this work and shall obtain all other data as required to insure the complete and proper design of the project.

· The Contractor shall prepare and submit with the design documents appropriate connection, fabrication, layout, and product specific drawings.

· The Contractor shall produce design submittals that are more like shop drawing submittals so that after final design approval, submittals are minimized.

Submittal requirements are as follows:

b.1 Site Survey and Pre-Final Design (60% DESIGN). Include Site Survey report, half-size drawings, specifications and manufacturer's data sheets.

b.2 Final Design (100% DESIGN). Incorporate comments on 60% design, design analysis and calculations and submit original design documents.

b.3 Format of Design Documents Prepare, organize, and present design drawings in accordance with ISO-UNI Standards in a manner considered standard industry practice, except as modified herein. Design drawings shall be complete, accurate, and explicit enough to show compliance with requirements and to permit construction. Prepare computer aided design (CAD) drawings on compact disk (CD) read only memory (ROM) media in an AutoCAD Release 2007 "DWG" file format. Prepare A1size drawings. Each drawing shall bear the seal and signature of the registered architect or professional engineer who prepared the design for the specific technical field. Drawings shall be geospatially referenced using real world coordinates WGS-1984 UTM 33N. The Technical Support Section will provide an AutoCAD drawing that is geospatially referenced for the contractor to use as a background.

b.4 Drawings required As a minimum, prepare design drawings to incorporate the types of drawings needed by each design discipline and in the detail required by the specification sections furnished with the SOW.

b.5 Copies of Design Documents

For each design phase (60% and 100%) Provide copies of the design documents for review as follows:

· 3 hard copies of drawings;

· 3 hard copies of specifications and manufacturer's data sheets;

· 3 hard copies of design analysis;

· 3 hard copies of calculations;

· 3 CDs with the entire submittal.

4. DESIGN STANDARDS

(1) UNI Norms;

(2) CEI Norms;

(3) UNEL Norms;

(4) Italian Law No. 64 dated 2 February 1974 and related decrees;

(5) Italian Law No.10 dated 9 January 1991;

(6) Italian Ministerial Decree No 37/08 dated 22 January 2008;

(7) Italian Law No. 46 dated 05 March 1990 and associated technical enforcement decree No.

447 dated 06 December 1991;

(8) Italian Ministerial Decree dated 14 January 2008 Technical Norms for Constructions in

Seismic Areas

(9) Other applicable Italian national and regional laws.

The project shall be also in compliance with Aviano Air Base Master Specifications, dated November 2005 available at the Engineering Office (31CES/CEPM) during normal duty hours.

5. SITE SURVEY REPORT

The Contractor shall perform site surveys and all other investigations needed to clearly determine the existing site conditions and to perform drawings to be used for the survey report and project design. Contractor shall make all needed contacts and coordination with the Base Agencies to clearly determine all work requirements to be included in the project design, to develop the facility floor plan and to identify and size all equipment and materials to be installed in order to fulfill the project scope and the related defined work requirements. The Contractor shall prepare a “Survey Report” containing the project scope and requirements; list of all applicable US Air Force and Italian laws, norms and local regulations; descriptions of survey’s findings including lists of contacted Persons and Base Agencies; discussions, evaluations and evaluations results; recommendations including descriptive lists of works to be performed and preliminarily sized equipment/materials to be installed in order to fulfill the project scope and requirements; problems to be solved.

6. SPECIFICATIONS AND MANUFACTURER'S DATA SHEETS

The Contractor shall make final product and material selections during the design phase. Submit manufacturer's data sheets for materials, equipment, fixtures, devices, and systems that will be provided, clearly marked to indicate the exact item(s) to be included in the construction.

The Contractor is encouraged to prepare construction specifications only for materials, products, or installation instructions that cannot be adequately described with manufacturer's data sheets.

7. DESIGN ANALYSIS

Prepare design analyses consisting of a basis of design and calculations for each design discipline. The design analyses shall be a presentation of facts to demonstrate the concept of the project is fully understood and the design is based on sound engineering principles. The design analyses for each discipline shall include:

a. A basis of design consisting of:

1. An introductory description of the project concept which addresses the salient points of the design;

2. An orderly and comprehensive documentation of criteria and rationale for system selection; and

3. The identification of any necessary licenses and permits that are anticipated to be required as a part of the design and/or construction process.

b. Calculations as needed to support the design and their format:

The design analyses for each design discipline shall include a cover page indicating the project title and location, contract number, table of contents, and tabbed separations for quick reference. Each design analyses shall be prepared on A4 size (210 x 297 mm) or Letter (8.5 x 11 inch) size white paper and be bound in separate volumes for each design discipline. Multiple volumes for individual disciplines, appropriately numbered, may be provided when needed. Organize as follows:

a. Civil;

b. Structural;

c. Mechanical – Plumbing.

Total person per dorm is about 100 people.

8. CALCULATIONS

a. Calculations for each design discipline shall include a cover page, a table of contents, a summary of criteria, the project title and location, and contract number. Calculation pages shall be legible. Cite criteria from which calculations, rationale, and formulas are extracted by publication number, title, edition and page number. The cover page of calculations shall also include the names of the persons originating and checking the calculations. The person checking the calculations shall be a registered professional engineer other than the originator. In addition, the signature and seal of the designer responsible for the work shall be placed on the cover page of the calculations for the respective design discipline.

b. In the specific, calculation of the solar panel shall be supported by a software as “TSOL Pro” for large plants or equivalent.

c.

Computer printouts, if used, shall be identified similar to the calculations and may be referenced as an appendix or attachment to the design analyses. Identify the computer program name, source, and version. Schematic models used for computer input shall also be provided.

9. MATERIAL SUBMITTAL

Materials and other items shall be submitted for the approval by the Contracting Officer in accordance with clause entitled “Materials and Workmanship”.

The Government will review, approve and/or disapprove material submittals within 10 working days.

10. CLOSEOUT DOCUMENTATION

· Once issued NTP, Contractor is required to contact CEAOR (Ms. Cristina Rossetto 0434-305691) and schedule a meeting to fill Form DD1354 with appropriate project data for real property capitalization (blank DD1354 and category codes list CATCODE_LIST_2010 are available at the Engineering Office (31CES/CEPM) during normal duty hours). Contractor is required to provide final Form DD1354 for 31CES/CD signature before contract close out;

· For main item/works included in the project (roofing, electrical systems, mechanical systems and equipment, etc) warranty period will be indicated in accordance with CE norms (2 years) unless otherwise indicated (Based on single project, Special warranty periods more compatible with modern construction technologies may be indicated in the technical specifications and included in the contract E.g., roofing 10 years, etc);

· Before contract close out, for main items/works included in the project (roofing, electrical systems, mechanical systems and equipment, etc), for warranty call purpose, Contractor will be required to provide 3 copies of a letter identifying project number, item, company address, phone number, point of contact, item warranty expiration date, etc. One copy of the letter will be installed next the item for immediate consultation;

· Before contract close out, Contractor will be responsible to provide 3 sets of AS BUILT drawings signed and stamped by qualified engineer and cd with autocad and pdf electronic version of same drawings (AUTOCAD Release 2007 for drawings. Drawings shall be geospatially referenced using real world coordinates WGS-1984 UTM 33N. 31CEP/CEPT section (0434-305488) will provide an AutoCAD drawing that is geospatially referenced for the contractor to use as a background).

11. DECLARATION OF COMPLIANCE

Contractor shall provide declaration of compliance for all mechanical and electrical systems in accordance with D.M. No.37 22/01/2008.

12. TESTING CERTIFICATES AND REPORTS

Provide Three (3) copies of Testing Certificates and Reports of all structural, mechanical, electrical and telecommunication systems. All related certificates shall be done, stamped and signed by Official Testers registered in their own Boards. The Contractor shall submit a three-name list of official testers in which the Government will choose one.

13. O&M MANUALS, CONTRACTOR RESPONSIBILITY

Provide Three (3) copies of use, maintenance, repair and safety manuals of the equipment in accordance with the norms in force. A separate volume, in English and Italian, in two copies, shall be furnished containing the details of the controls, adjustments, maintenance and interventions by the Contractor for a two (2) winter cycles period. Everything foreseen in this volume is an integral part of the Contractor’s responsibility without any further compensation by the U.S. Government.

14. CIVIL WORKS , NEW ROOF SAFETY LINE

Provide any necessary architectural, structural and civil work for the enlargement of existing mechanical room. Item includes masonry works, curtain walls, restoration to original conditions, etc.

Layout dimensions as per attached drawings.

a. New concrete platform and paved area as per attached sketch.

b. New Facility. Item includes:

Structure made of galvanized steel frame and insulated sandwich metal panel 10 cm thick, color as existing external walls.

Front access double door, 2m-wide.

Flashings and downspouts like the exisiting.

External painting like the existing.

External Perimeter concrete sidewalk.

Excavation works (trenches and backfill) to relocate the gas pipeline and associated Gas cabinet.

c. Install new safety line on the part of the roof with the solar panels, including all the certifications.

N.4

15. HYDRANT AND GAS LINE MODIFICATION.

a. Relocate existing hydrant connection.

b. Relocate existing gas pipeline and the stainless steel box with the pressure reducer.

c. Installation of gas meter on the gasline feeding the boiler dedicated to the domestic hot water.

d. During the execution of the works, Contractor must guarantee the continuity of service of domestic hot water for the showers of the dorm, using temporary equipments and connections. Interruption of maximum 24hrs are permitted and shall be requested in writing by the Contractor at least 10 days in advance.

N.4

16. THERMAL SOLAR PANELS.

The solar panel absorber shall be designed for a “Drain Back” system. Item includes:

Structure made of aluminum frame with rock wool insulation minimum 4 cm thick.

Non glare glass, hail resistant, minimum thickness 3.2 mm. in compliance with SPF, class1.

High selectivity copper absorber, laser welded circuit, titanium treatment finishing.

Typical technical data of a single panel:

· “Solar Key Mark” , UNI EN 12975 certified;

· net absorber surface approximated 2.0 SqMt;

· Water content minimum 1.7 Lt.

· weight approximated 40 Kg;

· absorbtion efficiency 95%;

· heat emission 5%;

· max pressure 10 Bar;

· Stagnation temperature 204 Cels deg;

· Five years warranty;

Piping, fittings and all accessories must be suitable for high temperatures, installation of thermal expansion joints is required.

The roof panel supports must be verified according to UNI EN 1991 norms. In the past we had wind speed more than 150 Km/h.

N.200

17. MAIN MANIFOLD, DROP PIPELINES, RECEIVING TANKS.

a. The system must be “drain back” (a svuotamento).

b. All the circuit pipeline must be installed for a fast drain back, avoid siphons and water stagnation on primary circuit.

c. Main pipeline and manifold can be either in stainless steel or copper; pipe joints must be made with a heavy brazing or certified high temperature clamp joint 120 Cels. Deg.

d. The main manifold can run on the attic. All pipelines must be stainless steel or copper.

e. Each group of solar panel must have intercepting ball valves on the attic suitable for high temperature.

f. All the pipelines must have insulation thickness equal to the pipe diameter and covered with aluminum sheet 6/10 mm.

g. The exposed drop pipeline must be protected with galvanized flashing, same color of the building walls.

h. Size properly the receiving drain back tanks to contain all the fluid circulating in the solar panel.

i. Installation of thermometers and manometers on primary and secondary circuits for immediate reading and visual control.

N.4

18. HOT WATER TANK-IN-TANK STORAGE.

a. Hot water storage tanks, total capacity 4000 Lt.

b. Steel structure S235JR EN1025.

c. Ceramic or vetrified anti-corrosion threatment for potable water.

d. Resistant to high temperature and thermal shock for anti-legionella threatment if necessary.

e. Polyurethane insulation 10 cm thick.

f. External PVC cover with zip.

i. The tanks must be equipped with the magnesium sacrificial anode.

N.8

19. CIRCULATING GROUP AND SOFTWARE.

a. New circulating hydraulic group, complete of variable speed pump, thermometers, pressure gauge and electronic controller with large display and friendly interface.

N.4

b. Furnishing and installation of software “TSOL Pro” for large plants and multiple storage tanks. The US Gov will furnish the computer.

N.1 Contract includes 4 hours of training for Base maintenance personnel performed by a specialized technician able to communicate in English and maintenance for a two (2) winter cycles period.

Project # ASHE 09-1012

Statement of Work – Rev #1

DATE: FEB 2014

31CES/CEPM

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