B08_Att_No__1_SOW_Repair_and_Replace_Boiler.pdf

SCOPE OF WORK

SAN FRANCISCO MARITIME NATIONAL HISTORICAL PARK

Repair Steam Boilers at the Sala Burton Building, San Francisco, CA

PART 1: GENERAL

1.1 DESCRIPTION

This project is required to repair the boilers at the Sala Burton Building.

1.2 GENERAL CONDITIONS AND INFORMATION

Work includes purchase, delivery, installation, replacement, repair, adjustment, and tuning of various components to ensure the boilers and the boiler system (consisting of two boilers, plumbing system, controls, and all appurtenances) are functional, operational, and mechanically sound. One of the two boilers has cracked sections resulting from failure both mechanical and controls issues. For this work, both boilers and boiler system will be made functional, operational, and mechanically sound.

The Sala Burton Building (aka Maritime Museum) is located within Aquatic Park. Aquatic Park is part of the San Francisco Maritime National Historical Park (SAFR), National Park Service. The building is a historic structure and care must be taken to protect historic fabric that is outside the scope of this contract. Damage to its historic fabric will be repaired or replaced in-kind at Contractors expense.

The day-to-day operations within Museum Building will continue during the repair work. All debris shall be minimized and contained as work progresses, and egress to the building for the Senior Center and park staff shall be maintained. All work for this contract shall be performed through a qualified contractor.

Any particulars described for the work involved is given for guidance to the Contractor, however, the Contractor is to take his own measurements, dimensions, and counts, and is responsible for the same.

All work described in this specification is for the preparation and repair work to the boiler system.

Additional work that will result in additional cost shall be carried out only when authorized in writing by the Contracting Officer.

The Contractor shall be responsible for removing and disposing of any debris from the work areas of Park that is generated by the Contractor during the workday.

All disturbed surfaces shall be cleaned and restored to the original appearance by the Contractor.

The Contractor shall immediately notify the Contracting Officer of any ambiguities, inconsistencies and errors discovered in this specification or between contracting documents and existing conditions.

PART 2: SCOPE OF WORK/SERVICES

Boiler #1 Work:

After shutting down the system, and isolating and securing the relative utilities, the 4” angle stop/check valves need to be removed. The Hartford loop must be replaced with a 2.5” equalizer line. This work includes all related piping, fittings, sealants, gaskets, bolt kits, & insulation. Boiler feed pumps and solenoid valves moving water slow to boiler due to Hartford loop restrictions.

The annual startup service shall be performed, and the pilot assembly replaced (burners shall be cleaned for safety and tuned for proper combustion. This work includes service and replacement of screen, safety switch, probe and pilot assembly. Tune for proper operation.

Start and test for normal operation. Provide permit and associated fees at cost. After boiler is filled, it will be tested in accordance with industry standards for operation and functionality. The burners will be adjusted to operate correctly, and boiler pressure adjusted to the boilers pressure controls.

Boiler #2 Work:

After shutting down the system, and isolating and securing the relative utilities, the 4” angle stop/check valves need to be removed. The Hartford loop must be replaced with a 2.5” equalizer line. This work includes all related piping, fittings, sealants, gaskets, bolt kits, & insulation. Boiler feed pumps and solenoid valves moving water slow to boiler due to Hartford loop restrictions.

Removal and replacement one boiler: Provide and install one Burnham cast iron sectional steam knock-down boiler model #FV908SNP to match existing serial #65467580 to be assembled in place on existing housekeeping pad, complete with steam trim, L91B modulation controller, CSD- 1 (L4079B reset, 150S-MD, and 63M low water cut off safety controllers. Provide and install one new Power Flame burner model #NPMR50-15-120 with full modulation, CSD- 1, SUB 20 PPM NOx emission burner, gas train is 1.5: gas pressure is 6.4”wc minimum 14” wc maximum, Fireye model #MEP562/FR flame safeguard, 120-1-60. Reconnect flue venting, electrical wiring and conduit, gas piping, make up water piping, relief piping, drain piping, with related sealants, gaskets, bolt kits, and insulation as required.

Tune for proper operation. Start and test for normal operation. Provide permit and associated fees at cost. After boiler is filled, it will be tested in accordance with industry standards for operation and functionality. The burners will be adjusted to operate correctly, and boiler pressure adjusted to the boilers pressure controls.

Boiler System Work:

Provide engineered mechanical and structural drawings for project detail, and as required for permit.

Contractor shall provide all labor, materials, and equipment to ensure the the boiler system (consisting of two boilers, plumbing system, controls and all appurtenances) are functional, operational, and mechanically sound.

Contractor shall contact COR to schedule the work. All work will be performed during regular working days and hours (Monday – Friday, from 7:00am to 3:30pm).

PART 3: INSPECTION/ACCEPTANCE

Schedule the final inspection with park point-of-contact. At time of final inspection, project site shall be thoroughly cleaned and ready for use.

PART 4: POINTS OF CONTACT

Micah Wright Supervisory Facility Operations Specialist San Francisco Maritime National Historical Park Fort Mason Center, Bldg. E, Room 265, San Francisco, California, 94123

(415) 859-0898

END OF SCOPE OF WORK

SAN FRANCISCO MARITIME NATIONAL HISTORICAL PARK

Repair Steam Boilers at the Sala Burton Building, San Francisco, CA