ASHE_15_1063_SOW_Revision_2.pdf

Project # ASHE 15-1063 Technical Specifications Revision 2 Date: September 2016

31CES/CEMN 1

U.S. AIR FORCE

31ST FIGHTER WING

31ST CES/CENM

AVIANO AIR BASE, ITALY

TECHNICAL SPECIFICATIONS FOR

ASHE 15-1063

SUSTAIN HVAC SYSTEM, BLDG 1173

AREA F , AVIANO AB, ITALY

REVISION 2

31CES/CEMN 2

1. SCOPE OF WORK

The Contractor shall furnish all manpower, equipment, materials and transportation to:

- Replace the main chiller unit.

- Installation of secondary Chiller unit (furnished by US Gov).

- New distribution pipeline for the chilled water.

- Furnishing and installation of 18ea fan coil units and associated pipelines.

- General maintenance of 2ea existing Air Treatment Units (ATU).

2. WORK SITE CONDITIONS

2.a. Works must be performed inside a restricted area.

Can be required to work on Saturday.

Construction will be divided in two phases; as first phase is completed, Contractor can start 2nd phase.

During the execution, the Contractor must guarantee the continuity of service of Government personnel working inside the building.

2.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. 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 weekends or U.S. holidays in order to minimize impact to base activities.

2.c. 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.

2.d. 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.

2.e. 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.

2.f. 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.

2.g. 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 D.M. 81/08.

2.h. Before works start, contractor will submit a detail works schedule to C.O. for coordination and approval.

3. WORK DESCRIPTION

EACH ITEM OF THE SCHEDULE IS INCLUSIVE OF FURNISHING AND INSTALLATION OF MATERIALS AND EQUIPMENT, SCAFFOLDING, TRANSPORTATION TO DUMP OR STORAGE OF DEMOLISHED AND/OR REMOVED MATERIALS, IN ACCORDANCE WITH CONTRACTING OFFICER'S INSTRUCTIONS AND ALL FINISHING WORK

REQUIRED TO MAKE EACH ITEM COMPLETE IN A WORKMANLIKE MANNER.

ALL THE QUANTITIES THAT ARE INDICATED OR SUCCESSIVELY ADDED, ARE ESTIMATES. THEREFORE THE GOVERNMENT SHALL BE NOT HELD RESPONSIBLE FOR THE ACCURACY OF THE ESTIMATED QUANTITIES.

THE CONTRACT REQUIRES A COMPLETED PROJECT ON A LUMP SUM BASIS. IT IS THEREFORE THE RESPONSIBILITY OF THE CONTRACTOR TO CALCULATE, FORESEE AND PERFORM ALL QUANTITIES AND WORK NECESSARY EVEN IF NOT MENTIONED IN THE SPECIFICATIONS BUT INCLUDED IN THE DRAWINGS OR

MANIFESTLY NECESSARY TO DELIVER A COMPLETE PROJECT BASED ON ITS OVERALL SCOPE.

31CES/CEMN 3

3.1 New Main Chiller unit

a. Complete removal of existing chiller unit and associated pipeline. Disposal as per Italian law. Save existing twin pumps, existing valves and filters.

L.S.

b. Furnishing and installation of 1ea new Chiller unit with the following characteristics:

- Eurovent certified

- Cooling only.

- Screw type compressors with inverters.

- Type Carrier 30XAV 500 or similar approved.

- Cooling capacity 509 Kw.

- Max ESEER 4.9, EER 3.4.

- Tumble exchanger (scambiatore a fascio tubiero) Evaporator protected with aluminum cover.

- Thermal insulation on intake tube.

- “Victaulic” connections

- Interface control “Touch Pilot” or equivalent.

- Communication card for existing DDC system, including any update of existing software.

- For winter use with condensation control at -20 deg.

- Anti-freezing protection on the evaporator side with electrical resistance.

- Anti-vibrating supports.

- Installation of 2ea drainage valves.

- Installation of 2ea main valves on supply and return pipes.

- First starting made by Manufacture authorized technician.

1 EA.

c. Electrical works consisting of:

- Replacement of existing 400A main thermal magnetic switch sized as per new Manufacture electrical data and any other works necessary to complete the works.

d. Hydronic group.

- Hydronic group must be designed in accordance with Chiller technical specification; the system must work at -15 deg.

- Galvanized storage tank capacity 2000 Lt.

- Anti-corrosion protection.

- Aluminum cover for outdoor installation.

- Thermal insulation 10 cm thick.

- Threaded connections with Diameter > or = of the Chiller outlets.

- Re-use existing main Twin pumps.

- Pumps must have aluminum top roof to protect from rain.

- Complete of electronic controls and electrical feeding lines and associated breaker protection.

- Plastic piping system.

31CES/CEMN 4

3.2 New secondary Ciller unit (Government furnish)

a. Installation of 1ea new Ciller unit furnished by U.S. Air Force with the following characteristics:

- Carrier Aqua snap.

- Model 30RBS-100B0018-PE.

- Serial no. M2014052729.

- Construction year 2014.

- Cooling capacity 100 Kw.

- Contractor shall modify the unit for winter use at -20 deg.

- Anti-freezing protection on the evaporator side with electrical resistance.

- Anti-vibrating supports.

- Contractor shall furnish and install 2ea new “Victaulic” connectors.

- New pipeline must have insulation 20 mm thick with aluminum cover for outdoor installation.

- Installation of 1ea drainage valves.

- Installation of 2ea main valves on supply and return pipes.

- First starting made by Manufacture authorized technician.

1 EA.

b. Electrical works consisting of:

- New electrical feeding line and new thermal-magnetic breaker sized as per Manufacture electrical data. To be installed near the new breaker for the main chiller.

c. Hydronic group.

- Hydronic group must be designed in accordance with Carrier Chiller technical specification; The system must work at -20 deg.

- Galvanized storage tank capacity 500 Lt.

- Anti-corrosion protection.

- Aluminum cover for outdoor installation.

- Thermal insulation 10 cm thick.

- Threaded connections with Diameter > or = of the Chiller outlets; No reductions.

- Twin pumps as required by Chiller Manufacture technician suitable for outdoor.

- Pumps must have galvanized metal roof

- Complete of associated electronic controls.

- Plastic piping system.

3.3 Plastic Pipeline, pumps, valves, filters.

a. Removal of existing pipeline and disposal; save pumps, valves, filters and controls.

b. Before re-installation, subject components must be cleaned, inspected, removal of rust and anti-rust treatment.

31CES/CEMN 5

c. Contractor shall furnish and install all new missing components to complete the installation in workmanlike.

d. Contractor shall furnish and install 2ea new twin pumps complete of blank flanges, to be installed on primary circuits of the two chillers as suggested by chiller Manufacture data. Create an aluminum roof above the new pumps.

e. Contractor shall provide a shop drawing (scheme) for approval before to start works.

f. Paper copy of subject scheme must be attached on the room for future reference.

g. Installation of new plastic pipeline starting from both chillers to the existing UTAs and new fan coils:

- Type “ Aquatecnic- Fusio-technic Blu Pipe” or equivalent approved suitable for chilled and heating water.

- Certified UNI EN ISO 15874-2, 15874-5 e DIN 8077 e 8078

- All accessory component of the same Manufacture.

- 100% Final design approved by Manufacture technician.

- Accurate Thermal insulation to avoid condense leaking, Black foam, closed cells, 19 and 25 mm thick.

- Covered with aluminum for outdoor and gray PVC for indoor

- No rubber elastic joints, only stainless steel.

- Piping support system calculated as per Manufacture data.

- Welding/assembly method as per manufacture data.

h. Flanged connections starting from 75mm Dia. For ball valves, pumps, gate valves etc. with adequate supports.

i. New manifolds (collettori) same material of piping.

j. Re-installation of existing electronic controls including new wiring where necessary.

k. New Temperature and pressure gauges IP65.

l. Flow direction labeling on surface of pipeline.

m. Including any electrical work necessary for a workmanlike.

n. Re-use existing twin-pumps as shown on attached scheme.

3.4 Restoration of 2ea Air Treatment units consisting of :

- Replacement of belts.

- Repair any damaged part of the metal structure.

- Verify dampers mechanism, cleaning and lubrification, replacement if needed.

- Deep cleaning/washing of internal walls, including coils and fan blades.

- Combing (pettinatura meccanica) of heating and cooling coils.

- Replacement of all filters.

- Cleaning of all supply/exhaust grids in Ventilation room.

- Cleaning of all supply/return grids on Conference Room

L.S..

3.5 Anti-freezing compound.

- The entire cooling circuit must have 25% of anti-freezing liquid (glycol).

- Estimated quantity Liters 500. The remaining unused glycol must be delivered to our maintenance team.

31CES/CEMN 6

3.6 New 4tubes Fan coils (18ea).

Note: this is a restricted area.

a. Removal of existing Fan-coils, associated cooling and heating pipeline and disposal; Save existing drainage pipeline to be re-connected to the new fan-coils.

b. New cooling and heating plastic pipeline, same materials as described in Para 3.3.c.

c. New heating pipeline starting from inside Ventilation room, connected to existing metal pipes.

d. Contractor shall provide a shop drawing (scheme) for approval before to start works.

e. Installation of new Fan-coils on suspended ceiling cm 60x60:

- Type Sabiana Sky Star SK 36, Box type, for suspended ceiling cm 60x60.

- 4tubes, double coil.

- Capacity: Heat 3.53 KW with 0.5 Lt; , cool 4.53KW with 1.7 Lt.

- Increase cooling coil.

- Accessorized with fresh air intake.

- Without thermostatic 2WAY valve, direct connection.

- 4ea ball valves.

- Condense drain pump.

- Modification of existing electrical feeding line.

- Accessorized to connect existing Fresh-air duct.

- Work includes adequate supports on the ceiling.

18EA.

3.7 New Room Thermostats, wall mounting (10ea).

a. The new Room thermostat shall control 3-Speed fan on one or multiple fan-coils.

b. Work includes electrical wiring in plastic conduit, digital control cables.

10EA.

3.8 CIVIL WORKS

a. Modification / construction of concrete platforms to house the 2 chillers.

b. Replacement of 20% of existing ceiling tiles in the restricted area.

c. During works in the restricted area, protect desks and any other equipment with plastic sheet. General cleaning in the Restricted area of floor and any other surface after completion of works.

d. Cleaning in Ventilation room of floor with appropriate detergent, general cleaning of existing pipeline and any other surface after completion of works.

L.S

3.9 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/CENM) during normal duty hours). Contractor is required to provide final Form DD1354 for 31CES/CD signature before contract close out;

- Before contract close out, for main items/works included in the project (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;

31CES/CEMN 7

- 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).

3.10 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.

31CES/CEMN 8

31CES/CEMN 9