1. 1 Air Conditioning EPA Type 1

2. 2 Type One Certification

3. 3 Definitions Manufactured, Charged, & Hermetically sealed with less than five pounds of refrigerant

4. 4 Examples RAC Refrigerators/freezers De-humidifiers Water coolers PTAC RAC Refrigerators/freezers De-humidifiers Water coolers PTAC

5. 5 Recovery Standards Before Nov 15, 1993 –Remove 80% or 4” Vacuum After Nov 15, 1993 –Remove 90% with compressor operating –Remove 80% if compressor not operating Before Nov 15, 1993 –Remove 80% or 4” Vacuum After Nov 15, 1993 –Remove 90% with compressor operating –Remove 80% if compressor not operating

6. 6 Leak Repair It is not mandatory to repair small appliance leaks but to do so whenever possible Vent Nitrogen is Ok It is not mandatory to repair small appliance leaks but to do so whenever possible Vent Nitrogen is Ok

7. 7 Recovery Techniques Active- Using a recovery machine Passive- Using either a non pressurized container with the unit compressor –Only units containing 15 LBS or less –Recover from both sides with an inoperative compressor Active- Using a recovery machine Passive- Using either a non pressurized container with the unit compressor –Only units containing 15 LBS or less –Recover from both sides with an inoperative compressor

8. 8 Piercing Valves Temporary Always leak test after installation and before using If pressure is 0 PSIG do not begin recovery The valves tend to leak over time Install a permanent service valve Temporary Always leak test after installation and before using If pressure is 0 PSIG do not begin recovery The valves tend to leak over time Install a permanent service valve

9. 9 Do not mix refrigerants Recovery process –Speed Up Cool the tank Heat up unit Recovery Problems –Tank closed –Excessive air or nitrogen in tank –Tank is too hot Do not mix refrigerants Recovery process –Speed Up Cool the tank Heat up unit Recovery Problems –Tank closed –Excessive air or nitrogen in tank –Tank is too hot

10. 10 Service aperture –A straight piece of tubing that is entered using a piercing valve –Process stub Graduated cylinder –Dial a charge –Recover the refrigerant from the top Service aperture –A straight piece of tubing that is entered using a piercing valve –Process stub Graduated cylinder –Dial a charge –Recover the refrigerant from the top

11. 11 Disposable Cylinder –When disposing you must recover any refrigerant, render the cylinder useless and recycle the metal Nitrogen cylinder –Must be equipped with a regulator Disposable Cylinder –When disposing you must recover any refrigerant, render the cylinder useless and recycle the metal Nitrogen cylinder –Must be equipped with a regulator

12. 12 Color Codes –R12 – WHITE –R22 – GREEN –R500 – YELOW –R502 – PURPLE –R134A – LIGHT SKY BLUE Color Codes –R12 – WHITE –R22 – GREEN –R500 – YELOW –R502 – PURPLE –R134A – LIGHT SKY BLUE

13. 13 Small campers –Ammonia –Hydrogen –Water SCBA –Self contained breathing apparatus Small campers –Ammonia –Hydrogen –Water SCBA –Self contained breathing apparatus

14. 14 Portable tanks used for shipping must be DOT approved Refrigerant decomposition –R12 & R22 decomposes to form hydrochloric and hydrofluoric acid Portable tanks used for shipping must be DOT approved Refrigerant decomposition –R12 & R22 decomposes to form hydrochloric and hydrofluoric acid