1. Kaeser Direct Drive CSD Rotary Screw Compressors

2. 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 /

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

4. 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 /

5. 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 /

6. 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 /

7. 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 /

8. 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 /

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

10. 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 /

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

12. 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 /

13. 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 /

14. 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 /

15. 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 /

16. 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 /

17. 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 /

18. 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 /

19. 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 /

20. 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 /

21. 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 /

22. *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 /

23. 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 /