Airon and Heil – Going the extra mile for YOU

1. 2008 ACA Conference Airon and Heil – Going the extra mile for YOU

2. 2008 ACA Conference Are You Ready For Tomorrow? R410A Seminar Airon and Heil – Going the extra mile for YOU

3. 2008 ACA Conference Always Remember, Safety is #1 and Everyone’s Business! Airon and Heil – Going the extra mile for YOU

4. Use Safety Equipment Airon and Heil – Going the extra mile for YOU

5. Remove Jewelry Airon and Heil – Going the extra mile for YOU

6. Lift and Move Correctly Airon and Heil – Going the extra mile for YOU

7. Electric Shock BE CAREFUL! High voltage is always dangerous. Even 40 volts can be lethal if skin is wet or damaged. Airon and Heil – Going the extra mile for YOU

8. Refrigerant Safety • Most of the safety precautions are the same for R-410AasR-22 • For example, never expose cylinders of either refrigerant to temperatures above 125° F • Use the same storage rules for both Airon and Heil – Going the extra mile for YOU

9. Refrigerant Safety • R-410Ahas been confirmed to be in the low toxicity range • ASHRAE Safety Group: A1/A1 • UL Class: Practically Non-flammable. (Can form a combustible mixture with air at pressures above atmospheric pressure) • DOT Green Label: Non-flammable Airon and Heil – Going the extra mile for YOU

10. Refrigerant Safety Airon and Heil – Going the extra mile for YOU

11. Refrigerant Safety • Skin or Eye Contact: • Same as other refrigerants; causes frostbite • Flush with lukewarm water • Seek immediate medical attention Airon and Heil – Going the extra mile for YOU

12. Refrigerant Safety • Avoid exposing it to high temperatures • Watch your torch! • Exposure to flame can produce toxic compounds • Contact with red hot metals can result in explosive reactions Airon and Heil – Going the extra mile for YOU

13. Codes Follow all Local Codes. In the absence of local codes, consult the current edition of the National Fuel Gas Code. Airon and Heil – Going the extra mile for YOU

14. Why Choose R-410A For Air Conditioning? • 4-15% more efficient than alternative HFC • refrigerants for air conditioning applications • The chosen refrigerant for newer, more efficient • and reliable HVAC systems • Enhanced heat-pump performance • Cost-effective design • No ozone-depleting chemicals • Lowest global warming (TEWI) Airon and Heil – Going the extra mile for YOU

15. What Is TEWI? Total Equivalent Warming Impact

16. R-410A Benefits to Contractors • Offer your customers the most efficient systems, to improve comfort and control costs • Save on projected service costs as R-22 is phased out • Meet tough new energy and environmental restrictions today • Avoid the potential losses in capacity and energy efficiency of retrofit refrigerant replacements • Enhance your reputation by positioning yourself as a refrigerant transition expert Airon and Heil – Going the extra mile for YOU

17. The 2010 R-22 Phase Out • Phase out all ozone-depleting hydrochlorofluorocarbon (HCFC) refrigerants like R-22 in new equipment by January 1, 2010 • Phase out R-22 for service by 2020 Airon and Heil – Going the extra mile for YOU

18. The 2010 R-22 Phase Out Airon and Heil – Going the extra mile for YOU

19. Getting ready for 2010 Airon and Heil – Going the extra mile for YOU

20. What’s In A Name? • Carrier calls it Puron • Dupont calls it Suva 9100 • Rheem calls it ProZone • Lennox calls it Environ • Sanyo calls it Cooleron Airon and Heil – Going the extra mile for YOU

21. Why Is R-410A So Desirable? • Operates in the same temperature ranges as R-22. • The cooling equipment can share the same basic design as traditional equipment. • For example . . . Airon and Heil – Going the extra mile for YOU

22. Typical Pressures & Temperatures At 95 Degrees OAT SST=41Degrees/SCT=117 Degrees SST=49Degrees/SCT=118 Degrees Airon and Heil – Going the extra mile for YOU

23. Terms • When two blended refrigerants separate easily, they are called Zeotropic • When blended refrigerants don’t segregate in the system, but form a stable chemical composition they are called Azeotropic Airon and Heil – Going the extra mile for YOU

24. Terms • Fractionation • Temperature Glide Airon and Heil – Going the extra mile for YOU

25. Terms Fractionation • The tendency of one or more components of a blend to leak at a faster rate than other components • Changes the composition of the remaining blend still in system • Loss of performance results • Occurs in zeotropic blends like R-407C Airon and Heil – Going the extra mile for YOU

26. Terms What is Temperature Glide? • Difference in two temperatures at a given constant pressure • For example . . . Airon and Heil – Going the extra mile for YOU

27. Terms In the evaporator . . . • The 1st temperature at which liquid refrigerant first begins to boil is known as the saturated liquid temperature Airon and Heil – Going the extra mile for YOU

28. Terms The 2nd Temperature… • Saturated vapor temperature: The 2nd temperature at which the last drop of liquid refrigerant has boiled off Airon and Heil – Going the extra mile for YOU

29. Terms Temperature Glide • At a constant pressure, the difference between the saturated vapor temperature and the saturated liquid temperature is referred to as the temperature glide of the refrigerant • The temperature glide of a single compound refrigerant like R-22is zero Airon and Heil – Going the extra mile for YOU

30. Terms R-410ATemperature Glide • The temperature glide of R-410Ais 0.3°F or essentially zero as well Airon and Heil – Going the extra mile for YOU

31. Terms Key Attribute of R-410A • Near-Azeotropicproperties means it acts like a single compound with minimal temperature glide or fractionation potential Airon and Heil – Going the extra mile for YOU

32. SERVICING CONSIDERATIONS • R410A is a 50/50 (wt. %) mixture of • HFC-32/125 • R410A exhibits azeotropic behavior • with temperature glides that are less • than 0.3°F over the operating range Airon and Heil – Going the extra mile for YOU

33. SERVICING CONSIDERATIONS • When compared with a zeotrope, an • azeotropic mixture such as R410A will • not suffer significant segregation in a • system and will not materially • change its composition due to a leak Airon and Heil – Going the extra mile for YOU

34. SERVICING CONSIDERATIONS • As a result, servicing a system that • uses an azeotropic mixture is similar • to servicing a system that uses a pure • fluid Airon and Heil – Going the extra mile for YOU

35. R410A HEAT TRANSFER AND PRESSURE DROP CHARACTERISTICS A number or researchers from tubing, system, and refrigerant manufacturers and universities have conducted studies on the heat transfer and pressure drop characteristics of R-410A. Airon and Heil – Going the extra mile for YOU

36. R410A HEAT TRANSFER AND PRESSURE DROP CHARACTERISTICS • The results indicate a consistent increase • in the evaporation heat transfer averaging • 40% higher that R-22 • Condensation values are similar to R-22 • The pressure drop is significantly less than • R-22 in both evaporation and condensation, • averaging close to 40% lower in both • cases Airon and Heil – Going the extra mile for YOU

37. R410A Heat Pumps – Compressor • Consumer Benefit • Reliable Performance • Lowest failure rate • Durability • Quiet Airon and Heil – Going the extra mile for YOU

38. R410A Heat Pumps – Compressor Airon and Heil – Going the extra mile for YOU

39. R410A Heat Pumps – Reversing Valve • 600 Lb burst pressure • Heavy duty reversing valve Airon and Heil – Going the extra mile for YOU

40. R410A Heat Pumps – Muffler Designed Specially for R410A Systems Airon and Heil – Going the extra mile for YOU

41. Accumulators • New accumulators have been designed. Use exact replacement accumulators - can not be mis-matched • Do not use any other accumulators as a replacement Airon and Heil – Going the extra mile for YOU

42. Accumulators Mixing tube mixes the oil and refrigerant to maximize oil return R-22 R-410A Airon and Heil – Going the extra mile for YOU

43. Filter Drier • Factory supplied, Field installed at Indoor Evaporator Coil • Use ONLY factory approved filter drier • One of the methods to remove moisture from POE oil is with filter drier Airon and Heil – Going the extra mile for YOU

44. Now Located At The Indoor Coil Airon and Heil – Going the extra mile for YOU

45. Factory Shipped Filter Drier Feature & Benefits • Feature • Filter drier shipped with each unit (field installed) • Consumer Benefit • Compressor Protection • Reliable Performance Airon and Heil – Going the extra mile for YOU

46. Pressure Control Settings • Because of the higher operating pressures, the high & low-pressure control settings must be higher than those encountered on R-22 systems • The recommended high-pressure control settings are a cut-out pressure of 610 psig and a cut-in pressure of approximately 500 psig • The recommended low-pressure control setting is a cut-out pressure of 50 psig • Make sure the pressure control you are using on a 410A system has the correct pressure range allowing it to be adjusted for the correct pressures Airon and Heil – Going the extra mile for YOU

47. POE Oil • R-22uses alkylbenzene oil • R-410Auses polyolester (POE) oil • Oils must be miscible with refrigerant. • miscible = able to mix together • Oils must be matched with the proper refrigerant Airon and Heil – Going the extra mile for YOU

48. POE Oil • Great lubricant • But ! • It’s “hygroscopic”: strong attraction to moisture • Will absorb water vapor right into the oil Airon and Heil – Going the extra mile for YOU

49. POE Oil Airon and Heil – Going the extra mile for YOU

50. POE Oil Airon and Heil – Going the extra mile for YOU