Attachment 1 - PWS B500 JWing - g heat restoration - .pdf

Performance Work Statement

Project Title: B500 Jwing heat restoration

NexGen Work Task #: 17900416

1. Objectives:

The Contractor shall procure, replace, and repair various equipment as specified below in order to restore heating capability to the JWing system at B500.

2. Conditions:

The existing equipment is broken due to age and previous flooding incidents. As a result, heating capability for JWing – multiple floors – is not currently available. The existing condensate station is a 25 gal duplex station with 2” vent, mounted on a ~2’x4’concrete pad. The existing heat exchanger is asteam-to-medium temperature water U-tube HX, Taco S/N P4146, cat# B10206-SWA4 rated at 150 psi at 375F.

3. Project Requirements

• The Contractor shall visit site before starting any work to verify existing conditions space requirements in work areas.

• The Contractor shall remove and dispose of the existing 25 gal condensate return station located on the east side of the Jwing 1st floor mech room.

• The Contractor shall install in the same location a new 25 gal condensate tank with duplex pumps, of like capacity and fit. The new tank shall be stainless steel with all industry standard trim.

• The Contractor shall remove the existing U-tube steam HX and associated piping located in the

Jwing 1st floor mech room with a new unit of like configuration and capacity.

• The Contractor shall replace the steam traps on the steam HX and flash tank located in the Jwing

1st floor mech room (1ea ¾” F&T trap and 1ea ¾” Inv bucket trap).

• The Contractor shall replace the following associated with the HX and condensate station as well: gate valves for isolation (2ea 1” A105 800THR and 2ea ¾” A105 8900THR), check valves

(1ea NPT 800 A105 Piston check & 2ea ¾” NPT 800 A105 Piston Check), relief valve (1”x1” at

75 psi), pressure gauge (2ea 0-100 psg, 4” face), and strainer (1ea ¾” wye).

• The contractor shall provide all electrical connections required for the new equipment.

• The Contractor shall provide all required piping and coupling connections for the new equipment, including sch 80 pipe on the condensate side.

• The Contractor shall provide all required consumables for the new equipment, such as but not limited to o-rings, gaskets, and seals.

• The Contractor shall provide start up testing to prove satisfactory installation and capability of the new equipment and piping.

• The Contractor shall be responsible for all Lock-Out-Tag-Out (LOTO) requirements. The

Government shall provide assistance with system operation to allow the work and testing.

• The Contractor shall provide at least a 1-year warranty on all labor and new materials.

• The Contractor shall clean up and dispose of all removed equipment and project waste from the replacements, as well as any trash generated from the work. Refuse shall be disposed of off-Base in accordance with Offutt AFB Environmental Special Conditions section 01 57 19.

4. Other General Requirements:

The contractor shall furnish all material, labor, transportation, equipment, tools, services, expertise, supervision, and incidentals required to fulfill the requirements of this contract. No alterations, additions, or deletions shall be made unless by prior approval of the government Project Manager and the government Procuring Contract Officer (PCO). The work shall conform to the most current applicable State, AFI, ETL, NFPA, and Unified Facility Criteria Standards. Work shall be completed in a neat, substantial, and competent manner. All personnel shall abide by all industry safety standards, such as OSHA, and the Contractor shall provide all required PPE. The contractor shall perform quality assurance activities that conform to the quality assurance processes outlined in International organization of Standards (ISO) 9001, Quality Management Systems. The Contractor shall use PWS requirements.

The Contractor shall coordinate with the Government for needed system operation to allow the work and subsequent testing on the pump. The Contractor shall provide their own lock-out-tag-outs as needed.

During construction the Government will occupy the existing facilities. The contractor shall not restrict nearby pedestrian or vehicular traffic and shall coordinate with the Contracting Officer’s

Representatives to facilitate usage. The Contracting Officer’s Representatives shall be notified not less than 15 calendar days in advance of any interruptions in building utilities / services, which will be described in writing.