1. E VERY L IFE H AS A P URPOSE… Chillgard ® L Series Refrigerant Monitors

2. Chillgard L Series  The refrigerant monitoring industry leader  Home of proven, reliable Photoacoustic Infrared Technology

3. Chillgard L Series  Photoacoustic sensor is stable and sensitive  Improved PIR sensing  Sample system minimizes moving parts, no solenoid valves or mechanical flow switch  RS-485 & Digital Signal Processing  New advances in micro-machined technology  Water and Corrosion resistant plastic enclosure

4. Chillgard L Series  Features a new optical bench  Micro-machined optics  Significant technological advancement  Used on all Chillgard LS and LE Gas Monitors  Improved reliability  2-year warranty  Backwards-compatible with existing units

5. Chillgard L Series - Flexibility  Flexibility to meet:  Refrigerant Monitoring needs  Remote Signaling and Control  Power Requirements  Budget

6. Chillgard L Series  Chillgard LS Refrigerant Monitor  Economical low level monitoring of refrigerant gases  Sensor unit with analog and digital output  Chillgard LC Control Module  Controls up to 8 Chillgard LS Sensors  Multiple outputs and relays  Chillgard LE Refrigerant Monitor  Combined features of Chillgard LS and LC Gas Monitors within one enclosure  Combined multi-point sensing and controlling

7. Chillgard LS Monitor  Photoacoustic IR sensor  Standard gases – R123, R134a, R11, R12, R22  Minimum detection level - 20ppm  Single-point diffusion or 4- point pumped models

8. Chillgard LS Compliant with ANSI/ASHRAE 15  Compliant with ANSI/ASHRAE 15  UL approval  Water- and corrosion-resistant plastic enclosure  Easy operation, installation and maintenance  2-year warranty

9. Chillgard LS  24 VAC/DC or 110/220 VAC power  5 LEDs indicate power, fault and 3 levels of alarm  4-20 mA and RS-485 outputs (to Chillgard LC Controller)

10. Chillgard L Series – Sensor Board

11. Chillgard LS Optional Gases  R400 and R500 series of refrigerants  Blends of multiple refrigerants to obtain good thermodynamic properties in the chiller, with reduced corrosion and ozone depletion potential.  Includes R404a, R410a, R407c, R507  Order with custom calibration  Other refrigerants possible

12. Chillgard LS Accessories  Accessories  Unit-mounted strobe  Calibration box  Remote light towers  Calibration kits  Chillgard LC Controller

13. Maintenance and Repair No moving parts in diffusion-mode Chillgard LS MonitorNo moving parts in diffusion-mode Chillgard LS Monitor Optical bench is field-replaceable for convenient repair and for detection of a different refrigerantOptical bench is field-replaceable for convenient repair and for detection of a different refrigerant

14. Chillgard LS Optical Bench pumped bench diffusion bench

15. Chillgard LS Summary  Low cost refrigerant sensor  Improved PIR technology  Easy to install, operate and maintain  Can be stand-alone or used with Chillgard LC Controller

16. Chillgard LC Control Module  Capable of controlling up to 8 Chillgard LS Sensors  Easy-to-use digital display with 4-button keypad  Provides gas reading, alarm status, calibration and fault diagnostics  Water- and corrosion-resistant enclosure

17. Chillgard LC Features  4-20mA and RS-232 output  0-10 V point identifier output  4 relays - 3 levels of alarm + fault  85 dB horn, 100 dB horn option

18. Chillgard LC Control Board

19. Chillgard LS & LC Twisted pair RS-485, 18 GA wire up to 1000 ftTwisted pair RS-485, 18 GA wire up to 1000 ft Modbus protocolModbus protocol LC can communicate with up to 8 single-point LS monitors, two 4-point LS monitors, or any combinationLC can communicate with up to 8 single-point LS monitors, two 4-point LS monitors, or any combination

20. Chillgard LC Wiring  Home-run communication wiring  Bus communication wiring

21. Powering the Chillgard LS  Power locally via 24 VAC or DC  Power locally via 110/220 VAC optional supply  Power via Chillgard LC Control Module

22. Powering the Chillgard LC  24 VAC or DC  110/220 VAC optional supply  Can be used to power one Chillgard LS Monitor

23. Powering the Chillgard LC  Transformer version  Powers Chillgard LC Monitor and up to 5 Chillgard LS Sensors

24. Powering Chillgard L Series 24 VAC/DC available 24 VAC/DC RS 485

25. Chillgard L Series Power Options 110/220 VAC Available 110/220 V input input With internal 110/220 VAC power supply RS 485

26. Chillgard L Series Power Options 110/220 VAC Available 110/220 V input 4-conductor cable 24 VDC from LC With internal 110/220 VAC power supply For 1 sensor module, up to 100’ using 18 AWG wire

27. Chillgard L Series Power Options 110/220 VAC AVAILABLE LC transformer version 110/220 V Input RS 485 24 VAC RS 485 24 VAC RS 485 w/internal transformer Transformer version powers up to 5 diffusion Chillgard LS Monitors or two 4-point pumped Chillgard LS Monitors

28. Chillgard LC  Accessories  Unit mounted strobe  Remote light towers  Calibration kits

29. Chillgard LC Summary  Low cost controller  Controls up to 8 Chillgard LS sensors  Multiple outputs  Configurable to meet your needs  Easy to install, operate and maintain

30. Chillgard LE Features Combined features of Chillgard LS and LC products in one enclosure  Combined features of Chillgard LS and LC products in one enclosure  Combined multi-point sensing and controlling

31. Chillgard LE Features  Photoacoustic IR sensor  Standard gases – R123, R134a, R11, R12, R22  Minimum detection level - 20ppm  Single-point diffusion, single- point pumped or 4-point pumped models

32. Chillgard LE Features  Complies with ANSI/ASHRAE 15  UL approval  Water- and corrosion- resistant plastic enclosure  Easy to operate, install and maintain  2-year warranty

33. Chillgard LE Features 24 VAC/DC or 110/220 VAC power  24 VAC/DC or 110/220 VAC power  Easy-to-use digital display with 4-button keypad  Provides gas reading, alarm status, calibration and fault diagnostics  Water- and corrosion-resistant enclosure

34. Chillgard LE Features 4-20mA and RS-232 output  4-20mA and RS-232 output  0-10 V point identifier output  4 relays - 3 levels of alarm + fault  85 dB horn, 100 dB horn option

35. Chillgard LE Gases  R400 and R500 series of refrigerants  Blends of multiple refrigerants to obtain good thermodynamic properties in the chiller, with reduced corrosion and ozone depletion potential.  Includes R404a, R410a, R407c, R507  Order with custom calibration  Other refrigerants possible

36. Chillgard LE Summary  Low cost refrigerant sensor  Improved PIR technology  Multiple outputs  Configurable to meet your needs  Easy to install, operate and maintain

37. Chillgard L Series Summary  Effective: Meets ASHRAE standards for refrigerant monitoring  Flexible: Configurable to meet application needs  Advanced: Photoacoustic infrared bench design  Efficient: Detects low levels of refrigerant gas with low cost of ownership

38. Chillgard L Series Thank you!