Kaeser Direct Drive ESD Rotary Screw Compressor

Overview of Features Optimized specific power Redesigned air inlet duct Sigma Control 2™ featuring web browser connectivity and energy control strategies for improved part load efficiency Kaeser designed, high efficiency moisture separator Enhanced package layout supports easier connectivity, service, and system integration SFC includes Siemens’ latest variable frequency drive technology Variable speed fan motor for cooling fluid fan Remote grease fittings for drive motor and fan motor bearings © 2012 Kaeser Compressors, Inc., USA / V2.0 / www.kaeser.com

Energy Saving Features Sigma Profile airend design 1:1 direct drive - no losses Excellent motor efficiencies Minimal pressure drop across separator, piping, valves, and cooler Heat recovery ready © 2012 Kaeser Compressors, Inc., USA / V2.0 / www.kaeser.com

Sigma Profile and Specific Power Advantage Optimized Sigma Profile 5:6 design provides enhanced specific power Larger displacement Greater flexibility in pressure selection © 2012 Kaeser Compressors, Inc., USA / V2.0 / www.kaeser.com

Sigma Profile and Specific Power Advantage Precision ground finish on rotors creates less fluid friction and shear Closer tolerances and unequal diameter rotors significantly reduce back-flow © 2012 Kaeser Compressors, Inc., USA / V2.0 / www.kaeser.com

Standard Drive Motor Features Premium efficiency for lower input kW TEFC design protects windings from dirt, dust, moisture, etc. Class F insulation EISA compliant Anti-vibration motor mounts Wye-delta soft start © 2012 Kaeser Compressors, Inc., USA / V2.0 / www.kaeser.com

Direct Drive Coupling Most efficient drive system 1:1 direct drive Minimizes radial loads on motor and airend No gears means no gear noise or loss of efficiency Cast iron spool piece assures perfect alignment Requires no maintenance © 2012 Kaeser Compressors, Inc., USA / V2.0 / www.kaeser.com

Air Inlet Duct and Air Filter Air filter (easy access from above or below, no tools required) Air inlet Sigma Control 2™ (with percent air filter contamination) © 2012 Kaeser Compressors, Inc., USA / V2.0 / www.kaeser.com

Fluid Separator Tank New tangential air inlet improves air/fluid separation Separator tank cover pivots for easy element access © 2012 Kaeser Compressors, Inc., USA / V2.0 / www.kaeser.com

Sigma Control 2™ Large display Advanced communication features RFID key ensures authorized access © 2012 Kaeser Compressors, Inc., USA / V2.0 / www.kaeser.com

Sigma Control 2™ Communications Access Standard: Ethernet (web browser access) RS 485 I/O Bus RS 485 USS Interface Optional: Profibus (shown) Modbus Device net Profinet* * Available early 2012 © 2012 Kaeser Compressors, Inc., USA / V2.0 / www.kaeser.com

Sigma Control 2™ with SD Card PC updates Back-up user settings Performance data storage © 2012 Kaeser Compressors, Inc., USA / V2.0 / www.kaeser.com

Sigma Control 2™ Energy Saving Options 3 x PT100 Dynamic control – Monitors motor winding temperature to minimize idle time Vario control Quadro control Dual control Continuous © 2012 Kaeser Compressors, Inc., USA / V2.0 / www.kaeser.com

New High Efficiency Moisture Separator with Eco-Drain Efficient condensate removal with low pressure drop No air loss Eco-Drain with alarm feedback to Sigma Control 2™ Stainless steel construction © 2012 Kaeser Compressors, Inc., USA / V2.0 / www.kaeser.com

Service Accessibility Single latch e-z access removable panels (left-side) Wide-opening doors No central pillar on main service access External grease fittings for all motors Easy motor access via removable pillar © 2012 Kaeser Compressors, Inc., USA / V2.0 / www.kaeser.com

Air-Cooled Unit: Front View Fluid cooler fan Aftercooler fan Variable speed fluid cooler motor: Saves energy Improved temperature control Separate fixed-speed aftercooler motor Individual fan shrouds © 2012 Kaeser Compressors, Inc., USA / V2.0 / www.kaeser.com

Air-Cooled Unit: Back View Aftercooler Fluid cooler Fluid separator tank Moisture separator with Eco-Drain © 2012 Kaeser Compressors, Inc., USA / V2.0 / www.kaeser.com

Water-Cooled Unit: Back View Standard: Stainless steel, plate-type heat exchangers Optional: Shell and tube heat exchangers Special materials available Disassembles for cleaning Shown with optional shell and tube heat exchangers © 2012 Kaeser Compressors, Inc., USA / V2.0 / www.kaeser.com

SFC Units Package Layout Variable speed drive motor: No add-on cabinet Short drive motor cables Clean wire runs Variable speed fan motor: Speed determined by fluid temperature Allows further power reduction at lower inlet temperatures Sinamics drive – Latest Siemens drive © 2012 Kaeser Compressors, Inc., USA / V2.0 / www.kaeser.com