HWQJ_181064_SOW__REV_2.pdf

Project # HWQJ 18-1064 REV#2 Technical Specifications REV#2

Date: AUG 2018

31CES/CENM

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Aug 2018

U.S. AIR FORCE

31ST FIGHTER WING

31ST CES/CENM

AVIANO AIR BASE, ITALY

TECHNICAL SPECIFICATIONS FOR PROJECT

HWQJ 18-1064 SUSTAIN HVAC, MULTI, GHEDI AB

Ghedi AB, (Brescia), Italy

Revision#2

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1 SCOPE OF WORKS.

- Bldg 5294 HQ facility, remove and replace roof top package air conditioning system.

- Bldg 5311 Library, replace chiller with equivalent unit, wall mounting GPL Boiler and associated pipeline.

- Bldg 5315 Laundrette, complete replacement of all boiler room components and 4ea fancoils.

- Bldg 5307 Gym, replacement of 2ea chiller units and 2ea AHU units above suspended ceiling.

Location map.

2 WORK SITE CONDITIONS:

2.a 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.

2.b 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, the 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 Authorized work hours and days. Performance of work hereunder shall be from Monday through Friday excluding holidays from 08.00 to 17.00 hours. Work during weekends or holidays may be requested by the

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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 D.Lgs. 81/08.

2.h At least 5 days prior to the pre-final inspection, the Contractor shall furnish to the Contracting Officer all installed equipment operation and maintenance documentation, certificates concerning installed systems as required by host country laws, test reports, results, and as built drawings where required by host nation laws.

2.i The Contractor shall perform no digging until receipt of a completely coordinated AF form 103 from the

Contracting Officer.

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

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WORK DESCRIPTION:

Each item of the schedule is inclusive of furnishing and installation of materials and equipment, scaffolding, transportation to dump, and 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 not be 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 it not mentioned in the specifications but included in the drawings or manifestly necessary to deliver a complete project based on its overall scope.

3. Bldg 5294.

3.1 Complete removal of existing Roof Top HVAC system including :

Transformer, secondary control panels, metal channel, conduit and boxes.

Disconnect and protect existing hot water pipeline coming from existing GPL gas boiler.

Disconnect and protect Smoke detector on air duct.

Removal air of bleeders, temperature/pressure gauges, 3Way valve and associated controls.

Remove all air ducting system up to membrane roof and existing metal supports.

Remove all abandoned debris, bricks, filters, cleaning the membrane surface.

Repair damaged bituminous membrane around air duct holes and any other area supporting the new equipment.

Contractor shall transport off base at authorized dump according to category of debris/refuse in strict observance of all host country laws, decrees and local regulations in force.

LS

3.2 New Roof-Top Package unit with following characteristics:

Cooling capacity 26 KW.

Heating with hot water coil, sized for the existing gas fired boiler, including 3Way valve and modulating servomotor.

Re-connect hot water pipeline, repair thermal insulation cover with aluminum sheet 6/10mm.

2ea dielectric joints, 2ea ball valves PN25.

2ea stainless steel thermometers, 2ea air bleeders with ball valve;

Add anti-freezing liquid (glycol) to reach 30% of water content.

Type BlueBox Cube HE HP 1.2 or equivalent approved.

4 dampers module with static recovery, including servomotors.

Enthalpy free-cooling.

Filters F7/EU7 with dirty filters alarm.

Connection of condense drain pipe to existing drainage point.

Remote control panel.

Anti-vibrating rubber pads.

Test and First starting made by an authorized technician.

EA 1.

3.3 New Air Ducting system on the roof:

Galvanized sheet metal.

5 cm thick, closed cell insulation.

6/10 mm aluminum cover, weather proof.

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Water tight connection to existing air ducts t, repair damaged bituminous membrane around air duct holes.

Re-connect Smoke detector on air duct and install rain protection.

L.S.

3.4 New Electrical Panels and feeding lines:

Save and re-use existing main feeding line and re-connect the line on the existing 3Ph-400V panel; It includes all the accessory works and new thermal-magnetic breaker on Main Distr.Panel.

Secondary Distr.Panel located on the roof, stainless steel case IP54, complete of lights presence of voltage, main breaker, secondary breaker sized for the new roof top, spare breakers and service outlet

220V Shuko-bipasso. Re-connect existing industrial outlet. Contractor shall submit for approval the detailed skeme.

Feeding line from secondary panel to new roof top, sized as per Manufacture data, with flexible metal conduit and water proof connectors.

LS.

3.5 General maintenance of existing “Immergas” gas boiler on exterior wall:

Repair leaking connection of water line; replace flexible pipes, connectors; install 4ea new ball valves.

Replace flexible Gas pipe and install new gas ball valve.

Restore thermal insulation.

Replace completely the stainless steel container.

Perform annual revision/cleaning as specified by Manufacture. Create new “Libretto di centrale”.

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4. Bldg 5311 Library.

4.1 Removals :

Electrical feeding line from Main Distr. Panel to chiller and pumps.

Existing chiller unit, associated hydronic module and gas boiler.

Save and protect Fire Alarm components.

Save and protect Water Make-Up and pressure regulator.

Remove all existing pipeline (heating & cooling) inside the boiler room, including distribution manifolds, valves, 6ea pressure regulators and associated parts, maintain existing copper lines feeding radiators and fan coils.

Remove the Cillichemie black container that feed chemical product.

Remove existing 4ea fan-coils on suspended ceiling and associated room thermostats, save copper lines.

Remove stainless steel chimney.

Contractor shall transport off base at authorized dump according to category of debris/refuse in strict

4.2 New chiller units Cooling only, Eurovent certified, complete of Hydronic system:

Cooling nominal capacity 16.4 KW.

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Type Carrier Aquasnap 30RB 015 or equivalent approved.

Power supply 3PH 400V +N.

One hermetic scroll compressor.

Integrated Hydronic Module with variable speed pump sized for the new circuit.

2ea ball valve PN25 on in&out connectors, same diameter of chiller.

2ea Dielectric joins to connect copper lines.

HMI graphic service interface for monitoring and operating parameters.

Water frost protection.

Add anti-freezing liquid (glycol) to reach 30% of water content.

Protection grids.

New electrical feeding line 4x4 Sq.mm inside a metal conduit, from existing MDP, including 4P, 25A, 10KA, thermal magnetic breaker

Provide a continuous rubber stripes to support chillers basement;

Test and First starting made by an authorized local technician.

4.3 New chilled water storage tank:

Capacity 100 Lt.

In serial to return chiller pipe.

Stainless steel thermometer on supply and return pipe.

Drain valve on the bottom.

Air bleeder with valve on top.

Insulation material 10 cm thick.

Aluminum cover 6/10 mm all around (no plastic); water-proof sealed.

L.S

4.4 New GPL Gas fired, wall mounting boiler:

Heating Capacity 24 KW.

Only heating, no domestic hot water.

Made by primary Manufacture, type Immergas, Riello, Ferroli, Ecoflam etc.

Air bleeder with valve on top.

Complete of pressure and temperature gauges.

Test and First starting made by an authorized technician.

Create new “Libretto di centrale”.

4.5 New Distribution manifold, pipeline, valves, flow rate regulators:

Note: The new distribution system must be the exact copy of the existing; Do not install the Chillichemie dispenser.

New bronze 2 in. distribution manifold with ¾ inch connections.

Copper pipeline (no steel), to chiller and to boiler and to existing copper tubes feeding fancoils and radiators.

Dielectric joints on chiller and boiler.

All Ball valves PN25.

New 90 micron water filter, manual cleaning with counter-washing, including drain pipeline to be installed after the Water Make-Up.

New expansion vessel, same capacity of existing.

Drain valves as existing.

Temperature gauges and pressure gauges on supply and return manifold.

Elastomeric Insulation black foam, 19mm thick outside, 13mm inside.

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Aluminum cover 6/10 mm all around (no plastic); water-proof sealed.

Air bleeders on top with valve.

Install a service faucet with ball valve.

Flow direction labeling on surface of pipelines.

4.6 New Fan-coils, box type, design for cooling, 2ea per room:

Total cooling capacity 4.33 KW.

Two pipe system.

Type Sabiana SkyStar SK 22 or equivalent approved.

Suitable for suspended ceiling cm 60x60.

With 3way control valve.

2ea intercepting ball valves.

1ea Remote controls on each room controlling 2ea fan-coils (winter/summer, 3speed fan, 3Way valve).

Connection of existing flexible fresh air duct (primary air), including repair where necessary.

Condense pump to be connected to existing drain pipe.

Air bleeder on top.

Restore Elastomeric pipe insulation where necessary.

Replace existing damaged tiles on suspended ceiling.

EA 4.

4.7 New Stainless steel chimney:

Diameters as existing.

With mineral wool insulation on the attic as existing.

With condense drain as existing.

4.8 Civil works for boiler room restoration:

Work must be done before to start mechanical installation.

Removal of all deteriorated plaster, walls and ceiling.

Restoration of missing plaster with specific compound for restoration.

Primer and two coats of washable white paint, walls and ceiling.

Touch-up after mechanical installation.

Deep cleaning of the ceramic floor with appropriate detergent.

Increase outside concrete slab to support new chiller.

Assistance to Mechanical Contractor to perform demolitions, drill holes, general concrete restoration, to have a job performed in work man like manner.

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5. Bldg 5315 Laundrette

5.1 Removals :

All Electrical feeding line from Main Distr.Panel to boiler, pumps controls and accessories.

Existing gas boiler unit, associated gas ramp, safety devices, gas line and 2ea outdoor electric shut-off valves.

Hot water storage tank, associated circulating pumps, controls, expansion vessel and pipeline.

Remove Water Make-Up and pressure regulator.

Remove all steel pipeline, associated valves, bleeders and any other component.

Save and protect 2ea existing Back-flow Preventers and associated copper lines and valves.

Save and protect existing drainage pipeline.

Remove, Save, protect and re-install Fire Alarm and gas detection components.

Remove 4ea existing fan coil units inside Laundrette, associated pipeline and electrical controls.

Save existing stainless steel chimney.

The removed insulating materials (mineral or glass fiber, polyurethane, elastomeric foam, etc.) must be separate and threated as prescribed by norms in force).

Contractor shall transport off base at authorized dump according to category of debris/refuse in strict

5.2 New gas fired boiler:

Heating Capacity 34 KW.

Floor mounting.

Only heating, no domestic hot water.

Made by primary Manufacture, type Immergas, Riello, Ferroli, Ecoflam etc.

Air bleeder with valve on top.

Complete of pressure and temperature gauges.

Complete of Gas ramp and any other safety component required by norms in force.

Work includes any modification to connect existing stainless steel chimney.

Test and First starting made by an authorized technician.

Create new “Libretto di centrale”.

5.3 New Hot water storage tank:

Capacity 500 Lt.

Internal wall vitrified for potable water.

Complete of sacrificial anode plus one for spare.

10 cm insulation and PVC cover.

25 KW copper tubes exchanger, flanged and easy to remove.

Stainless steel thermometers on supply and return pipe of exchanger.

Stainless steel thermometer on tank.

Water temperature sensor associated with electric intercepting 3WAY valve on exchanger pipe.

Expansion vessel, capacity as existing.

Drain valve on the bottom.

Air bleeder with valve on top.

L.S.

5.4 New Gas lines:

Contractor must use materials certified for gas purpose.

Re-direct the existing gas pipeline feeding the laundry dryers directly outside without passing in boiler room; the new gas line will terminate to the new electric gas valve feeding laundry dryers. .

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Replace 2ea Shut-off gas valves mounted outside including electrical connection to existing

Gas_detection control panel, work includes any accessory work to have a job performed in work man like manner.

New gas line from new electric gas valve to the new gas burner in accordance with current norms.

Restore insulation and 6/10 mm aluminum cover on existing outside gas and water lines.

5.5 New Distribution manifold, pipeline, valves:

Note: Contractor shall submit for approval a detailed scheme of the new system in accordance with current norms.

New bronze 2 in. distribution manifold with ¾ inch connections.

Copper pipeline (no steel), to boiler, storage tank, pumps and to new 4ea fan coils.

Dielectric joints on chiller and boiler.

All Ball valves PN25.

New Water Make-up with pressure regulator and manometer.

New 90 micron water filter, manual cleaning with counter-washing, including by-pass with ball valves and drain pipeline to be installed after the Water Make-Up; Flow Capacity sized for the demand of

3ea contemporary washing machine.

New expansion vessel, same capacity of existing.

Modify existing drainage pipeline for the new drain valves and to collect the fumes condense.

Temperature gauges and pressure gauges on supply and return manifold.

Elastomeric Insulation black foam, 15mmthick.

Aluminum cover 6/10 mm all around (no plastic).

Air bleeders as necessary on top with valve.

Install a service faucet with ball valve.

Flow direction labeling on surface of pipelines.

5.6 New pumps:

1ea circulating twin pump dedicated for the new fan-coils circuit, variable speed; pump must stop when heating demand from 3Way valve has been satisfied.

1ea circulating twin pump dedicated for the new hot water storage tank, variable speed; pump must stop when the heating demand from 3Way valve has been satisfied.

1ea re-circulating pump as existing.

Work includes new electric circuit with 1/0/2 selector, thermal-magnetic breaker protection for each pump.

5.7 New Fan-coils on laundry area, heating only:

Horizontal, ceiling mounting.

Heating Capacity 4.30 KW.

Type Sabiana Futura FST33 or equivalent approved.

With 3way valve.

2ea intercepting ball valves.

New thermal-magnetic breaker for 2ea fan-coils.

1ea Room temperature control for 2ea fan-coils, 3speed fan, 3Way valve control (2ea total).

Air bleeder on top.

Copper lines from new manifold, elastomeric insulation 15 mm thick covered with gray plastic.

EA 4.

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5.8 Civil works for boiler room restoration:

Work must be done before to start mechanical installation.

Removal of all deteriorated plaster, on walls and ceiling.

Restoration of missing plaster with specific compound for restoration..

Primer and two coats of washable white paint, walls and ceiling.

Touch-up after mechanical installation.

Deep cleaning of the floor with appropriate detergent.

Assistance to Mechanical Contractor to perform demolitions, drill holes, general concrete restoration, to have a job performed in work man like manner.

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6. Bldg 5307 GYM.

6.1 Removals :

Removal of a Rhoss heat-pump 24KW chiller unit.

Removal of a Carrier chiller unit, cooling only, 33 KW.

Removal of 2ea existing AHUs above suspended ceiling;

Work includes where necessary, to remove, protect and re-install lighting system, diffusers, pipeline, fire alarm components and any other obstacle.

Note: The AHUs are anchored on the roof structure at 7.4 Mt from the floor. Contractor shall use a proper equipment to remove and re-install the existing ceiling tiles, AHUs, and eventually replace damaged ceiling tiles. See attached “As-Built” drawings.

6.2 New Ciller unit, Heat Pump for Gym Annex.

New chiller unit, heat pump, 24KW, type Carrier Aquasnap or equivalent approved, same characteristics of existing, feeding the new Gym Annex and Racquet ball area.

Integrated Hydronic Module with variable speed pump sized for the existing circuit.

2ea ball valve PN25 on in&out connectors, same diameter of chillers.

2ea Dielectric joins to connect copper lines.

HMI graphic service interface for monitoring and operating parameters.

Water frost protection.

Add anti-freezing liquid (glycol) to reach 30% of water content.

Protection grids.

Provide a continuous rubber stripes to support chillers basement;

Work includes any electrical line and protection breaker.

6.3 New Ciller unit, cooling only, for Main Gym.

New chiller unit, cooling only, 33KW, type Carrier Aquasnap or equivalent approved, same characteristics of existing feeding the main Gym area.

Integrated Hydronic Module with variable speed pump sized for the existing circuit.

2ea ball valve PN25 on in&out connectors, same diameter of chillers.

2ea Dielectric joins to connect copper lines.

HMI graphic service interface for monitoring and operating parameters.

Water frost protection.

Add anti-freezing liquid (glycol) to reach 30% of water content.

Protection grids.

Provide a continuous rubber stripes to support chillers basement;

Work includes any electrical line and protection breaker.

6.4 New chilled water storage tanks (1ea per chiller):

Capacity 100 Lt.

In serial to return chiller pipe.

Stainless steel thermometer on supply and return pipe.

Drain valve on the bottom.

Air bleeder with valve on top.

Insulation material 5 cm thick including exterior pipeline.

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Aluminum cover 6/10 mm all around (no plastic); water-proof sealed, including exterior pipeline.

EA 2

6.5 New AHU1 Fitness area above suspended ceiling:

Note: The new AHUs will be anchored on the roof structure at 7.4 Mt from the floor. Contractor shall use a proper equipment to remove and re-install the existing ceiling tiles, AHUs, and eventually replace damaged ceiling tiles.

See attached “As-Built” drawing M-602.pdf for the main physical characteristics.

“Eurovent” certified.

New Brackets and anchoring system to suspend the new AHU1, work includes masonry assistance.

Insulated panels, 4cm thick.

No de-humidification section.

With cross plate Recovery system, 50% efficiency.

Air Filters G4.

Coil equipped with 3Way valve.

Remote control, wall mounting as existing, with display showing all parameters and the status of the

3Way valve and filters.

Work includes any electrical works, as feeding line and protection breaker.

Modification / adaptation of existing air ducts, including anti-vibrating rubber joints.

6.6 New AHU2 Racquetball area above suspended ceiling.

Note: The new AHUs will be anchored on the roof structure at 7.4 Mt from the floor. Contractor shall use a proper equipment to remove and re-install the existing ceiling tiles, AHUs, and eventually replace damaged ceiling tiles.

See attached “As-Built” drawing M-602.pdf for the main physical characteristics.

“Eurovent” certified.

New Brackets and anchoring system to suspend the new AHU1, work includes masonry assistance.

Insulated panels, 4cm thick.

No de-humidification section.

Air Filters G4.

Coil equipped with 3Way valve.

Remote control, wall mounting as existing, with display showing all parameters and the status of the

3Way valve and filters.

Work includes any electrical works, as feeding line and protection breaker.

Modification / adaptation of existing air ducts, including anti-vibrating rubber joints.

7. GENERAL NOTES:

7.1 Works in the project must fully comply with the following:

- Italian Ministerial Decree No 37/08 dated 22 January 2008;

- Other applicable Italian national and regional laws.

7.2 Once issued NTP, Contractor is required to contact CEAOR (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 31CES/CENM office during duty hours). Contractor is required to provide final Form DD1354 for 31CES/CD signature before contract close out;

7.3 Before contract closes the contractor must provide manuals and training on all mechanical, electrical and other equipment about use and maintenance, training must be filmed for future reference;

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7.4 For warranty call purpose, Contractor will be required to provide 2 copies of 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;

7.5 Before contract close out, Contractor will be required to provide 2 copies of certificate of conformity for systems installed in accordance with DM 37/08, with pdf electronic version of same documentation;

8. LIST OF ATTACHMENTS:

- Mechanical as built Gym annex, 7 written pages

- Schedule of material submittals Rev #2, 3 written pages