### 1



### MEMORANDUM **: Recovere**  **d HCFC**  **- 22 Available to Meet Servicing Needs**  This memorandum provides the estimated quantities of HCFC - 22 ( R - 22 ) that can be recovered between 2012 and 2020 under the current assumptions in the Vintaging Model (VM) , a s well as the estimated quantities if the model is adjusted to reflect the assumption that 100 percent of refrigerant is recovered at disposal (i.e., a 0 % loss rate at the end - of- life ) . The assumptions used for these estimates are also provided. * * * * * Table 1 provides projected R - 22 servicing nee d, estimated R - 22 recovery ba sed on the current Vintaging Model recovery rates , and estimated R - 22 recovery assuming a 10 0% recovery rate. **Table 1**  **: Projected R -**  **22 Servicing Nee**  **d and Estimated R**  **- 22 Recovery**  **Under Two Scenarios, 2012 -**  **2020 (in MT)**  **2012 2013**  **2014 2015**  **2016 2017**  **2018 2019**  **2020** R - 22 Servicing Need 56,257 51,190 45,912 40,767 36,256 31,697 27,285 22,798 18,061 Estimated R - 22 Recovery a 19,329 20,596 21,396 21,644 20,733 21,101 21,075 21,475 22,042 Estimated R - 22 Recovery (0% Loss Rate at end - of- life ) b 35,344 38,652 40,510 41,833 40,097 42,009 41,016 42,781 46,264 Source: EPA’s Vintaging Model ( VM IO file_v4.4_3.23.12 ). a The amount of R - 22 that is recovered is based on the current VM’ s end - of- life assumptions , as shown in Table 2. b The amount of R - 22 recovered at end - of- life is based on a zero percent loss rate at disposal . 

### Table 2 lists the assumptions used to develop the projection s provided in Table 1 . This table is similar in structure to Table A - 1 of the Servicing Tail Report (STR) . To that end, red font denotes assumptions that have changed in the model since completion of that report in December 2009 (see http://go.usa.gov/rn4W ) . Additionally, since completion of the STR, “ R - 22 Medium Retail Food” has been reconfigured into two smaller end - use categories, “ R - 22 Large Condensing Units ” and “ R - 22 Small Condensing Units ” . The table shows the historical end - use category in gray font , for reference purposes only. **Table 2 .**  **Input Assumptions, Years 2005 to 2020 Current**  **Refriger a**  **nt E**  **qui p**  **m en**  **t T y**  **p e**  **a nd** 

**Orig i**  **nal ODS Refrigerant Charge**  **Size a**  **Loss**

**Rate b**  **Gr o**  **w t**  **h**

**Rate c**  **Recovery**

**Rate d**  **Lif e**  **time**

**(Years) AC Equipment**  R- 22 R- 22 Resi d ential Unitary A / C (2005 - 2006) 3 1 3.6 % 0.8 % 3 5 % 15 R- 22 R- 22 Resi d ential Unitary A / C (2006 - 2020) 5 1 3.6 % 0.8 % 3 5 % 15 R- 22 R- 22 Small Co m mercial Unitary AC 8 1 1 % 2. 5 % 4 0 % 15 R- 22 R- 22 Large Co m mercial Unitary AC 15 1 0 % 2. 5 % 4 0 % 15 R- 22 R- 22 Water & Ground Source Heat Pumps 4 5 % 0.8 % 5 7 % 20 R- 22 R- 22 Dehumidifiers 0 1 % 0. 2 % 5 0 % 11 R- 22 R- 22 Packaged Terminal Units 1 5 % 0.8 % 3 5 % 12 R- 22 R- 22 Window Units 1 1 % 5. 0 % 5 0 % 12 R- 22 R- 12 School & Tour Buses 5 1 0 % 2. 6 % 5 0 % 12 R- 22 R- 22 Transit Buses 8 4 4 % 2. 6 % 5 0 % 12 R- 22 R- 22 Trains 22 4 4 % 2. 6 % 5 0 % 5

### 2

**Current Refriger** **a nt**  **E qui**  **p m**  **en t T** **y p**  **e a**  **nd**

**Orig i**  **nal ODS Refrigerant Charge**  **Size a**  **Loss**

**Rate b**  **Gr o**  **w t**  **h**

**Rate c**  **Recovery**

**Rate d**  **Lif e**  **time**

**(Years)** R- 22 R- 11 Centrifugal Chillers 700 5 % 0. 5 % 8 0 % 25 R- 22 R- 12 Centrifugal Chillers 721 5 % 0. 5 % 8 0 % 27 R- 22 Reciprocating Chillers 230 1 % 0. 2 % 8 0 % 20 R- 22 Screw Chillers 300 1 % 0. 5 % 8 0 % 20 R- 22 Scroll Chillers 240 1 % 0. 5 % 8 0 % 20 R- 22 R- 500 Chillers 926 5 % 0. 5 % 8 0 % 27 **Refriger a**  **t i**  **o n Equ**  **i pm**  **e nt**  R- 22 R - 12 Cold Stora ge <0.01 2 0 % 2. 5 % 8 0 % 20 R- 22 R - 22 Cold Stora ge <0.01 2 0 % 2. 5 % 8 0 % 20 R- 22 R - 502 Cold Storage <0.01 2 0 % 2. 5 % 8 0 % 20 R - 502 R - 502 Cold Storage <0.01 2 5 % 2. 5 % 8 0 % 20 R- 22 R - 12 Large Retail Food 1,800 e 30% 0.8 % 8 0 % 18 R - 502 R - 12 Large Retail Food 1,800 33% 0.8 % 8 0 % 18 R - 502 R - 502 Large Re tail Food 1,800 33% 0.8 % 8 0 % 18 R- 22 R - 502 Large Re tail Food 1,800 30% 0.8 % 8 0 % 18 R- 22 R - 22 Medi u m Retail Food 3 8 % 1. 7 % 8 0 % 18 R- 22 R- 22 Large Condensing Units (Medium

Retail Food) 20 15% 0.8 % 80% 20 R- 22 R- 22 Small Condensing Units (Medium

Retail Food) 3 8% 0.8 % 80% 20 R- 22 R - 12 Small Reta il Food 1 1 % 0.8 % 3 5 % 20 R- 22 R - 12 Transport 8 2 8 % 2. 5 % 3 5 % 12 R- 402A R - 12 Transport 8 2 8 % 2. 5 % 3 5 % 12 R- 401A R - 502 Transport 8 2 8 % 2. 5 % 1 0 % 12 R - 502 R - 502 Transport 8 3 3 % 2. 5 % 1 0 % 12 R- 22 R - 11 Industrial Process Refrigeration 952 1 0 % 2. 5 % 8 0 % 25 R- 22 R - 12 Industrial Process Refrigeration 992 1 0 % 2. 5 % 8 0 % 25 R- 401A R - 12 Industrial Process Refrigeration 850 5 % 2. 5 % 9 0 % 25 R- 22 R - 22 Industrial Process Refrigeration 9,100 1 2 % 2. 5 % 8 0 % 25 Source: EPA’s Vintaging Model ( VM IO file_v4.4_3.23.12 ). a Charge size presented in kilograms. Cold storage charge size presented in kilograms/cubic foot . b The loss rates represent the percent of the total charge that leaks in a given year plus the amount, on an annual basis, emitted at service. This is expressed as a percentage of total chemical charge. c The growth rate applies to new consumption/virgin manufacture for products entering the market. The growth rate refer s to the growth of the equipment market for each end - use as a whole and is not specific to the refrigerant. For example, t he growth rate for unitary AC units from 2006 to 2020 includes both R - 22 and R - 410A from 2006 to 2009 and applies to 410A units only (due to the R - 22 new equipment manufacturing ban) between 2010 and 2020. d To adjust the model to assume a scenario in which 100% of refrigerant in equipment is recovered at disposal, all inputs in this column were changed to 100%. All other inputs remained the same to ru n this model scenario. e For CFC - 12 Large retail food, a new vintage of R - 22 has been added to the model that begins in 2000. This vintage has a charge size of 1,360, but all other values are the same as the original R - 22 vintage (with a 1,800 charge size).