EXISTING:  Atlas Copco GA18+Oil Injected Rotary Screw   112 CFM @ 125 PSIG Each

Provide and Install - (N) Powerex Laboratory Compressed Air System

BASE MODEL NUMBER:                      SEO4007HP-2-AES-SPL-DD

SYSTEM CAPACITY:                              100 SCFM @ 145 PSIG Each

HORSEPOWER:                                     80 HP Total (40HP each)

SOUND LEVEL:                                       60 dB(A)

ELECTRICAL:                                          460V, 3PH, 60Hz. – 53.9 FLA

GENERAL DESCRIPTION

Scroll Enclosure 40 HP system, complete with eight 5-HP oil-less scroll compressors, mounted inside of a rigid steel enclosure.  Enclosure to have a powder coat finish and shall include sound deadening insulation.  Noise levels shall not exceed 60 dBA with all compressor units in operation.  Each compressor pump has a 1750 RPM, TEFC motor, V-belt drive, and air-cooled aftercooler.

DETAILED PRODUCT DESCRIPTION:

OIL-LESS SCROLL COMPRESSOR PUMP

The compressors shall be belt driven oil-less rotary scroll single stage, air-cooled oil-less construction with absolutely no oil needed for operation. The rotary design shall not require any inlet or exhaust valves and shall be rated for 100% continuous duty.  Direct drive compressors shall not be used. Tip seals shall be of a composite PTFE material and be rated for 5,000 hours operation.  Compressor bearings shall be external to the air compression chamber and shall all be serviceable for extended compressor life.  Bearing maintenance shall not be required until 5,000 hours.  Compressors with bearings that are not accessible for service have a limited life span and shall not be accepted.  Compressors shall have an integral radial flow fan for cooling and are rated for 145 PSIG maximum pressure at sea level.

MOTOR SLIDE BASE FOR EACH MOTOR

Includes an adjustable slide base under each motor for ease of belt replacement and tensioning.

AIR-COOLED AFTERCOOLER

Aftercoolers are provided for each compressor pump.  Each unit is constructed of copper tubing with metal headers and is to be mounted integral to the compressor enclosure.

CONTROLS – NEMA 4

The controls shall be integrated with the compressor cabinet from the factory.  A lighted on/off switch is provided along with a user friendly, touch screen, HMI type display panel.  The controls will operate and continuously monitor the system and provide information and alarms to the user through the HMI display.  Features include display of system pressure, pump run status, pump fault conditions (high temperature shutdown, motor overload fault), maintenance counters and warnings, system trends, and pump HOA control.  System setup mode allows user to adjust system pressure setpoints, enable auto restart function, reset alarms, and reset maintenance counters.

Compressor operation shall include the Powerex Variable-Pump-Drive control logic.  Each compressor pump is automatically staged on or off individually based on actual system demand.  Energy efficiency is maximized at all usage levels.  Lead compressor status will rotate every 10 minutes to maintain equal run hours.  Dry contacts are provided for remote monitoring of compressor fault conditions.

WATER SEPARATOR (Shipped Loose)

Liquid separator for the discharge of the scroll enclosure with automatic float drain included.

REMOTE INLET

(2) (N) POWEREX-TRIDENT DESICCANT DRYER - Model PD210A

• 125 SCFM @ 100 PSIG
• Pre-Post Filtration
• Voltage/Phase/Hertz: 115V, 1 Phase, 60 Hertz
• Inlet / Outlet Size: 1” NPTF / 1 ½” NPTF

• Construction-Installation Including:
  • Pre-Construction
    • Confirm Equipment Layout
    • Equipment Submittals and Procurement
    • Scheduling
  • Construction-Installation Schedule
    • Structural Strut Direct Weather Protection
    • Demo and Removal of (E) Air Compressor – AC-1
      • Safe of (E) 460V Power at (E) 100A Disconnect Fed from Panel MCCP-3 Coordination with Stanford SOM Engineering
      • Disconnect (E) Plumbing POCs – Discharge - Drain
      • Disconnect (E) Electrical POC
    • Demo and Removal of (E) Air Compressor – AC-2
      • Safe of (E) 460V Power at (E) 100A Disconnect Fed from Panel MCCP-4 Coordination with Stanford SOM Engineering
      • Disconnect (E) Plumbing POCs – Discharge - Drain
      • Disconnect (E) Electrical POC
    • Rig, Set, and Anchor (N) Powerex Laboratory Compressed Air System Model SEO4007HP – In Temporary Position
      • Complete Electrical Modification- POC – SO Cord
      • Complete Plumbing POCs- Compressed Air Hose
    • Rig, Set, and Anchor (N) Powerex Laboratory Compressed Air System Model SEO4007HP – (N) AC-2
      • Complete Electrical Modification- POC
        • (N) Conduit and Wire as Required
      • Complete Plumbing POCs- Discharge and ½” Condensate Drain
        • Pro Press Copper Fittings
        • Complete Startup and Testing of (N) AC-2 Compressor
    • Rig, Set, and Anchor (N) Powerex Laboratory Compressed Air System Model SEO4007HP – (N) AC-1
      • • Complete Electrical Modification- POC
          • (N) Conduit and Wire as Required
        • Complete Plumbing POCs- Discharge and ½” Condensate Drain
          • Pro Press Copper Fittings
          • Complete Startup and Testing of (N) AC-1 Compressor
    • Complete System Startup Documentation