36C24419Q0080-001.docx

STATEMENT OF WORK

HOT GLYCOL COILS, VALVES and CONVERTERS REPLACEMENT

DEPARTMENT OF VETERANS AFFAIRS MEDICAL CENTER

3900 WOODLAND AVE.

PHILADELPHIA, PA 19104-4551

1. Project Scope:

The Philadelphia VA Medical Center is in need of a contractor to replace four coils for air handling units, four hot glycol converters, three manual valves with electrical valves for three cooling towers. The VA will supply the required coils, convertors, and electrical control valves.

2. Coil Replacement

2.1 A/C 7 South

2.1.1 Remove chilled water coil from A/C 7 south located on 10th floor roof Building 1.

2.1.2 Install new coil supplied by the VA.

2.1.3 Connect new coil to existing chilled water supply and return piping.

2.1.4 Existing A/C unit model is XT1-07581-Jenk0464.

2.1.5 Replace 100 linear feet of 48’x48’ rusted duct located above unit from double doors to the end of A/C 7 South. Replace duct with same size galvanized/insulated duct.

2.1.6 Repair insulation for duct and pipe as required.

2.2 A/C 8 and 9 West

2.2.1 Remove hot water heating coil from AC 8/9 West located inside 10th floor Penthouse Mechanical Room, Building 1.

2.2.2 Install new coil supplied by the VA.

2.2.3 Connect new coil to existing hot water heating supply and return.

2.2.4 Repair insulation as required.

2.3 A/C 2 Research Building 21

2.3.1 Remove hot heating glycol coil from A/C -2 located on Penthouse Roof, Building 21.

2.3.2 Install new coil supplied by the VA.

2.3.3 Existing unit is Wise custom air.

2.3.4 Connect new coil to existing hot glycol pipe supply and return.

2.3.5 Repair insulation as required.

2.4 A/C 3 Research Building 21

2.4.1 Remove faulty steam coil from A/C 3 located on pent house roof building 21.

2.4.2 Install new hot water glycol coil supplied by the VA.

2.4.3 Connect new coil to hot glycol coil Convertors 3-4 located below in Penthouse, 20 linear feet 2” type L copper of supply and return pipe. Coil installation shall be in accordance of the attached detail.

2.4.4 Provide coil installation per attached coil detail, Interface coil control valves with existing building management system CM3

2.4.5 Insulate pipe to new coil.

3. Building 21--Four Convertors Replacements:

3.1 AHUs Convertors / Pumps 3 and 4

3.1.1 Install two new convertors supplied by the VA against Mechanical Room East wall as shown on penthouse layout drawings.

3.1.2 Complete all installation of convertors 3 and 4 and pumps in accordance of attached drawings.

3.1.3 Connect the new convertors to existing hot heating glycol supply and return piping for Air handling units. Approximately 20 linear feet of 2” L type copper.

3.1.4 The contractor shall complete the installation of Convertors 3 and 4 and put them in operation before the removal of the existing leaking convertors.

3.1.5 Insulate convertors and piping.

3.2 Building 21 Reheat Convertors 1 and 2

3.2.1 Remove existing building reheat convertors 1 and 2.

3.2.2 Install two new convertors supplied by the VA.

3.2.3 Connect convertors to existing hot heating glycol.

3.2.4 Insulate convertors and pipe.

4. Chiller Plant Building 31-- Three Electrical Valves Replacements:

4.1 Remove existing faulty three 12” manual valves. Valves are frozen in “open” position.

4.2 The valves are located on the Cooling Towers 1, 2, and 3 Main Header.

4.3 The VA will supply the contractor with three hi performance butterfly valves James-bury part # 815L-11-2236XZ, lug style, extreme seat with 120 volt on/off electrical actuators fails in last position, part # EIM HQ-060, self-locking worm gear, limit switches and manual over ride.

4.4 The contractor shall install three 12” valves and three electrical operators in place of the manual valves.

4.5 Provide power 120 Volt from panel located in the chiller plant per NEC

4.6 Connect new valves to existing building management system CM 3

5. Other Specifics:

5.1 Prime Contractor to plan all phasing of work in coordination with Hospital staff to minimize down-time to areas affected by the project.

5.2 Waste Management, Specification 01 74 19 is to be included.

5.3 Prime Contractor to maintain all infection control/ dust prevention measures required.

5.4 Construction Contractor will get all Permits Necessary to complete the project.

5.5 Consolidate all necessary submittals by specification section on an excel spreadsheet.

Checklist to be utilized to track/ monitor submittal process.

5.6 Contractor will submit picture of affected area before, during, and after construction.

5.7 The contractor shall remove and properly dispose unused material and equipment.

5.8 The contractor shall clean the work area after job completion.

5.9 All crane work for lifting equipment shall be performed during weekend hours of 7:00 AM to 4:00 pm.