Kaeser Direct Drive CSD Rotary Screw Compressors

CSD Compressors: Front View Sigma Control 2TM Parallel flow-paths for optimal ventilation / cooling Optional integral dryer (not shown) Environmentally-friendly fluid filter element Easy maintenance access Optional VFD drive (SFC models) Intake silencer Remote grease fittings Optimized specific power Enhanced package layout © 2012 Kaeser Compressors, Inc., USA / V1.0 / www.kaeser.com

CSD Compressors: Back View Easy maintenance access Moisture separator Controls air inlet Eco-Drain Motor air inlet © 2012 Kaeser Compressors, Inc., USA / V1.0 / www.kaeser.com

Energy Savings 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 / V1.0 / 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 / V1.0 / www.kaeser.com

Sigma Profile and Specific Performance 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 / V1.0 / www.kaeser.com

Standard Drive Motor Features Premium efficiency for lower input kW TEFC design protects from dirt, dust, moisture, etc. Class F insulation 100% copper windings EISA compliant Anti-vibration motor mounts Wye-delta start © 2012 Kaeser Compressors, Inc., USA / V1.0 / www.kaeser.com

Direct Drive Coupling Most efficient drive system 1:1 direct drive Minimizes radial loads on motor and airend No gears mean no gear noise or loss of efficiency Cast iron spool piece assures perfect alignment Kaeser coupling requires no maintenance © 2012 Kaeser Compressors, Inc., USA / V1.0 / www.kaeser.com

Sigma Control 2™ Large display Advanced communication features RFID key ensures authorized access © 2012 Kaeser Compressors, Inc., USA / V1.0 / www.kaeser.com

Sigma Control 2™ Standard connectivity including: Ethernet (web browser access) RS 485 I/O Bus RS 485 USS Interface Optional connectivity including: Profibus (shown) Modbus Devicenet Profinet* * Available in early 2012 © 2012 Kaeser Compressors, Inc., USA / V1.0 / www.kaeser.com

Sigma Control 2™ SD card slot: PC updates Back-up user settings Performance data storage © 2012 Kaeser Compressors, Inc., USA / V1.0 / www.kaeser.com

Sigma Control 2™ Energy saving control strategies: Dynamic control – Monitors motor winding temperature to minimize idle time Vario control Quadro control Dual control Continuous PT 100 © 2012 Kaeser Compressors, Inc., USA / V1.0 / www.kaeser.com

Intake Silencer Passive device (no power required) No moving parts Entire inlet system optimized for lowest possible pressure drop Intake silencer © 2012 Kaeser Compressors, Inc., USA / V1.0 / www.kaeser.com

New High Efficiency Moisture Separator with Eco-Drain Efficient removal of liquid condensate and low pressure drop No air loss Eco-Drain sends alarm to Sigma Control 2™ Stainless steel construction © 2012 Kaeser Compressors, Inc., USA / V1.0 / www.kaeser.com

New Environmentally-Friendly Fluid Filter Element Long-life aluminum filter housing No need to replace housing Filter element Metal-free eco-friendly filter element Thermal disposal after use © 2012 Kaeser Compressors, Inc., USA / V1.0 / www.kaeser.com

Package Layout - Ventilation / Cooling: T Unit Compressor Exhaust Parallel paths for ventilation improve efficiency: Exhaust Dryer Lower air temperature means lower average cooler temperature Lower air temperature improves heat transfer Lower air velocities reduce noise Controls Exhaust View from back of T unit © 2012 Kaeser Compressors, Inc., USA / V1.0 / www.kaeser.com

View from back of standard CSD unit Package Layout - Ventilation / Cooling: CSD Compressor Exhaust Controls Exhaust View from back of standard CSD unit © 2012 Kaeser Compressors, Inc., USA / V1.0 / www.kaeser.com

Package Layout – Easy Maintenance Access Control cabinet filters Air filter Maintenance monitor (Sigma Control 2™) Fluid filter Oil fill and drain from front of unit Drive and fan motor grease fittings © 2012 Kaeser Compressors, Inc., USA / V1.0 / www.kaeser.com

Package Layout – Easy Maintenance Access Minimum pressure check valve Fluid cooler Fluid separator cartridge Aftercooler Fluid cooler drain Separator tank Moisture separator Eco-Drain © 2012 Kaeser Compressors, Inc., USA / V1.0 / www.kaeser.com

Package Layout – Optional Dryer Scroll refrigerant compressor for reduced power consumption Slimline profile due to new air-to-air heat exchanger design with integrated condensate separation Short piping runs between cooler outlet and dryer for minimized pressure drop Air discharge © 2012 Kaeser Compressors, Inc., USA / V1.0 / www.kaeser.com

Package Layout – Optional SFC Variable speed drive motor: No add-on cabinet Short cable run between frequency converter and motor terminals Clean wire runs Variable speed fan motor: CSD 100(T), 125(T) and SFC 90S(T) and 110S(T) models Speed determined by fluid temperature Allows further power reduction at lower inlet temperatures Sinamics drive – Latest Siemens drive © 2012 Kaeser Compressors, Inc., USA / V1.0 / www.kaeser.com

*Variable speed fan also comes standard with Package Layout – Optional SFC Main motor frequency convertor Cabinet exhaust fans Fan motor frequency convertor* (SFC 90S and 110S only) Control cabinet inlet air Motor cooling air inlet *Variable speed fan also comes standard with CSD 100 / 125 models © 2012 Kaeser Compressors, Inc., USA / V1.0 / www.kaeser.com

Summary of Features Optimized specific power Latest Sigma Control 2™ featuring web browser connectivity and energy control strategies for improved part load efficiency Kaeser designed intake silencer Kaeser designed, high efficiency moisture separator High efficiency, environmentally-friendly fluid filter element Enhanced package layout with easy connectivity, service and integration for T and SFC (T) options SFC with Siemens’ latest variable frequency drive technology and CSD 100/125 with variable speed fan motor Remote grease fittings for drive motor and fan motor bearings © 2012 Kaeser Compressors, Inc., USA / V1.0 / www.kaeser.com