Z2DA--693-19-122 | Replace Utility Air Compressors

Q&A Replace Utility Compressors 36C24423B0002

Answers:

#1- Revised scope will be sent out

#2- Yes 3" air line can be soldered

#3- This would be up to contractor. We have to keep facility equipment in operation. So either replace one) tank at a time; or get temporary compressor to replace more than one at a time.

#4- Controls will be stand alone. Facility will connect to BMS system.

#5- Depends on what contractor is installing. If there are legs off bottom of tank and they are bolted down, then no pad is needed.

REVISED STATEMENT OF WORK

REPLACE UTILITY AIR COMPRESSORS

PROJECT# 693-19-122

General:

The scope of work shall generally consist of, but not necessarily be limited to, providing all labor, materials, tools, equipment, permits, testing, and reports required to replace utility air compressors and associated storage tanks in pump room Building 11 of the Wilkes-Barre VA Medical Facility. Any work determined by the Contracting Officer s Representative (COR) as having a significant impact on the daily operations of the facility shall be conducted on an after-hours schedule. All work shall be performed in accordance with all federal, state, and local code/regulations/standards.

Contractor shall be responsible for removal and disposal of all old equipment, including electrical wiring back to panel.

Contractor shall provide and install two (2) 30 HP utility air compressors for pneumatic control air, three (3) 250-gallon steel storage tanks and one (1) 400- gallon steel storage tank it shall including all new piping, isolation valves, and pressure regulating valves.

Contractor shall provide new electrical connection from existing panel.

Prior to beginning work, contractor shall meet with COR and VA maintenance staff to plan out schedule of work to coordinate shutdowns. Plan replacement of compressors and receivers to minimally disrupt

The above scope of work is intended to describe the project in general. The contractor shall abide by all Infection Control Risk Assessment (ICRA) guidelines when performing this project.

The contractor shall follow all federal, state, and local codes, regulations, and standards. Normal working hours shall be 7:00AM to 4:30PM Monday to Friday excluding national holidays. Work outside normal working hours shall be coordinated through the designated COR.

Oil-less Scroll package System:

Oil-less, air cooled, tankless Scroll Compressor System

Triplex 30 HP TEFC motor (3x10 HP motors per each package unit)

Self-lubricating tip seals

Main bearings shall be housed in cast iron

System shall be packaged in a rigid steel frame with powder coated panels and lined with sound-deadening insulation

Shall not exceed 66 dBa with all compressor units in operation

Controller for energy efficiency, which starts one 10 hp motor at a time-based on-air demand

Each package system shall have lead/ lag capability

Front mounted control panel shall include:

On/Off switch

Power on light

High temperature shutdown with indication on the display

Run time hour meter for each pump

Maintenance counter with alarm warning display

System pressure display

Full voltage starter with overload protection

Air-cooled aftercooler for each compressor unit mounted in cabinet package

Line voltage: 208 Volt, 3PH, 60 HZ

RPM: 1750

93.6 SCFM @ 100 PSIG

Operating Pressure 90-116 PSIG

Dry contacts furnished for remote monitoring of compressor fault conditions

System shall be fully NFPA 99 compliant

Supply Factory start up and commissioning, all reports will be turned over to COR

Provide training for each of the following 3 shifts.

1st shift- 7 am-3 pm

2nd shift 3 pm-11 pm

3rd shift 11 pm-7 am

Receiver tanks:

(3) 250-gallon Vertical receiver tanks

(1) 400-gallon Vertical receiver tank

Steel tank constructed according to ASME BPVC section VIII

Rated for minimum 150 psig design pressure and bearing appropriate code symbols

Interior finish shall be corrosion-resistant coating

Include sight glass, drain, safety relief valve, pressure gauge with range 2 times operating pressure, and pressure reducing valves matching existing pressures on supply

Shall have timed automatic solenoid drain valve, connected electrically, and piped to nearest drain.

Concrete Equipment Pad:

Compressive strength at 28 days: minimum 3,000Â psi

Provide #3 bars 12 O.C each way in base and dowel base to floor

Length and Width dimensions shall be 6 greater than the equipment base plate

Height of equipment base shall be Minimum of 5 off finished floor

Chamfer all edges 1

Anchor equipment to base per manufactures instructions

Anchor insertion shall be 5X diameter of specified anchor

End of Document

Replace Utility Compressors