Scenario 2_SOW_CoolingTowerRebuild.pdf

P.O. Box 5000

Upton, NY 11973-5000 managed by Brookhaven Science Associates for the U.S. Department of Energy

STATEMENT OF WORK

I. TITLE – STATEMENT OF WORK FOR THE REBUILD OF BUILDING 488’S 275 TON

COOLING TOWER

II. SCOPE

Under this contract BNL expects the selected vendor to provide service to complete full demolition and replacement of the following components already for a 275 ton Marley TQ8304E-1GM cooling tower; S/N 805496X. The cooling tower is located outside of the facility at ground level, with ample access for maintenance, photos below.

Actual cooling tower and parts storage location

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Ground view of tower, noting ground obstruction (red)

The vendor shall provide all safety barriers, scaffolding, a rigging detailed rigging plan, demolition, and installation work to complete the cooling tower maintenance, while conforming to the requirements of BNL safety work package that is develop with the selected vendor upon award of the contract.

Work is expected to be performed during normal BNL working hours 8:00am to 4:30pm.

Work will not be permitted, nights, weekends, or holidays unless vendor receives written permission from BNL Energy and Utilities division. The work is expected to be completed during the tower’s off season between November 2024 and February of 2025.

III. Background

B488, the Berkner Hall facility is a staff support facility supporting BNL’s cafeteria, and several large meeting rooms. The water cooled chillers are located in the basement of B488, heat is rejected at a single cell Trane-branded, Marley model induced draft cooling tower located on the west side of the building.

The cooling tower was installed in 2005, since installation there have been no major overhauls or fill replacements. After almost 20 years this critical service is necessary for the continued operation of the chiller. The cooling tower is assessed as a predetermined 2A confined space, with a LOTO in place and no hazards introduced (Chemicals, sprays, solvents, torch work, grinding) no atmospheric testing is required.

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IV. TASKS AND REQUIREMENTS

The scope includes the execution of the following tasks:

1) All vendors are required to attend a pre-bid walkthrough, date and time to be determined.

2) Vendor Access/Training Required

a) All team members requiring site access shall register with the GUV center, and attend, at minimum a remote 2-hr Contractor/Vendor Orientation training.

3) Perform Site Safety Walkthrough with BNL Safety and complete a Job Hazard Analysis

a) Any training requirements identified during the safety walk through, and job hazard analysis are required to be completed prior to any worker performing work. Trainings are likely to include:

i) Fall Protection

ii) LOTO

iii) Confined Space

iv) Ladder Safety

v) Scaffold User Safety

4) Set up safety barriers around sky lights and building edge

5) Install scaffolding around tower work areas to facilitate all required work

6) Perform all demolition work required to execute the cooling tower rehabilitation, including the removal of construction debris.

7) Install the cooling tower rebuild kits purchased by BNL directly from the manufacturer per manufacturer assembly instructions, and industry best practices, including all necessary rigging of equipment. All expected subtask descriptions, including parts procured by BSA are shown in the following table, any materials ancillary to the parts list below shall be the responsibility of the contractor to procure.

Subtask Description Marley Part Qty Description 1 75 Ton 15 HP Fan

Motor Removal Replacement, Balancing and Start-up

041574 1 AC Electric Motor, Horsepower: 15, Phase: 3, Cycle: 60, Voltage: 230/460, Speed: 1800, Service factor: 1.15, Enclosure: TEFC, Frame size: 254T Horizontal foot mounted, Premium efficiency

2 275 Ton Cooling Tower Gear Reducer Assembly Removal Replacement, Balancing and Start-up

C68400 1 Geareducer assembly, 2000 Series, 4.80 ratio, CC2 fan shaft, Marley gray epoxy paint

C24687 1 Series 22.1T, 22.2, 22.3, 2200, 2250 and 2400, hardware and shims for securing gear box to mounting base. This kit also works for the series 20, 20T, 20.1, 20.2, 1800 and 2000.

A76772 3 Oil Synthetic, ISO 150, 1 Gallon container 3 275 Ton Cooling Tower

Fill/Drift Eliminator Overhaul (removal and replacement of fill partitions, fill, splice tubes, telescopic rods / fill hanging assembly, and all hardware)

FAPBRANDED1 1 Tower Model:NC8304 Replacement galv fill partition, pricing includes find#B13, B15, and all attaching hardware to install, per cell.

FAPBRANDED1 1 Tower Model NC8304, MX75 20mil fill replacement includes 20mil fill sheets, splice tubes(to splice cut tubes back together) and all hardware to install, per cell.

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Subtask Description Marley Part Qty Description 4 275 Ton Cooling Tower

Hot Water Basin Removal and Replacement (including covers)

D45479 1 Tower Model (box size) NC8304, Galvanized Hot Water Basin replacement includes 2 unassembled basins, sealer, and hardware to install, per cell. Nozzles, gaskets and basin covers are not included, but nozzles are required.

D45725 1 Tower Model (box size) NC8304, Galvanized Hot Water Basin Covers with hardware to install, per cell.

5 275 Ton Cooling Tower Nozzle Removal and Replacement

D44542 152 Spiral Target Crossflow Nozzle 68-3738-45

6 275 Ton Cooling Tower Horizontal Control Valve Removal and Replacement

778738 2 Gasket for 6-inch Diameter HC Valves (1 req'd per valve). Located between valve and pipe. Note:

8600 through 210 towers, 2 Gaskets are required.

221481 2 Full-Face Gasket for 6-inch Diameter HC Valves (1 req'd per valve). Located between valve and top of basin.

03834 2 Hardware to attach 6" flanged HC valve to inlet piping. Each quantity includes hardware for 1 HC valve.

7 275 Ton Cooling Tower Hanging Probe and Fill Valve Removal and Replacement

378554 1 VALVE 1"DIA VALVE

2088585 1 VALVE 16" STEM - Replaces 378752 Bronze version that was used previously.

045302 1 VALVE 8"DIA COPPER FLOAT

2065269 1 CONTROL LLC+c HANGING PROBE SET 30

FEET, MU 14 15 REF 13

8 275 Ton Cooling Tower

Fan Removal, Replacement, Balancing and Start-up

N/A 1 Tower Fan

8) Return surrounding area to original condition at start of project.

V. SIGNATURE AND DATE

____________________________ October 29, 2024