2. Refrigeration

4. What's Refrigerated?

7. What makes up a system?

8. Simple Refrigeration System Condenser Compressor Expansion Device Work In Evaporator Heat In Heat Out High Pressure Liquid Low Pressure Liquid & Vapour Low Pressure Vapour High Pressure Vapour

9. The Evaporator It blows cold air It blows cold air It removes heat It removes heat It can collect frost It can collect frost The refrigerant goes in as a liquid and comes off as a gas The refrigerant goes in as a liquid and comes off as a gas Various sizes depending on freezer size Various sizes depending on freezer size Various types Various types

10. Evaporators

14. The Condenser Heat is rejected Heat is rejected The heat can be reclaimed The heat can be reclaimed Various types-air cooled, water cooled,evaporative Various types-air cooled, water cooled,evaporative Various sizes Various sizes

15. Condensers

18. The Compressor The Engine The Engine The Pump The Pump Sucks and blows Sucks and blows Driven by a motor Driven by a motor Various types Various types It generates heat It generates heat It compresses the gas It compresses the gas Various sizes Various sizes

20. Compressors

24. Coldstore

25. The Electric drive motor Used to drive the compressor Used to drive the compressor Generates heat Generates heat Various types Various types Different speeds Different speeds Various sizes Various sizes

28. The Expansion Device Changes the refrigerant from high temperature high pressure to low pressure low temperature Changes the refrigerant from high temperature high pressure to low pressure low temperature Different types Different types Different sizes Different sizes

29. Providing “A total refrigeration service” www.star-ref.co.uk