November 1 2020 WHAT YOU NEED TO KNOW

November 1, 2020 WHAT YOU NEED TO KNOW ABOUT TRANSITIONING YOUR REFRIGERANT ACCA WEBINAR

WHY REFRIGERANT TRANSITIONS HAPPEN GWP: Global warming potential is a measure of how much heat a greenhouse gas traps in the atmosphere up to a specific time horizon, relative to carbon dioxide. ODP: The ozone depletion potential (ODP) of a chemical compound is the relative amount of degradation to the ozone layer it can cause, with trichlorofluoromethane (R-11 or CFC-11) being fixed at an ODP of 1. 0 ACCA webinar Honeywell Confidential - © 2019 by Honeywell International Inc. All rights reserved. 1

REGULATION UPDATE SB 1383 reduction goal: 40% below 2013 levels by 2030 • Regulations such as Kigali Amendment (global) and F-Gas (Europe) are driving replacement of higher GWP refrigerants • Environmental Protection Agency (EPA) has proposed ban on higher GWP refrigerants in chillers in 2024 • California has proposed GWP limitation of 750 for chillers and residential HVAC • Climate Coalition of 15+ states is committed to address the issue of high GWP refrigerants • California, Washington and Vermont have passed certain HFC regulations Business as usual scenario: HFC Emission Sources in California (2030) Regulations will drive transition to Lower GWP Refrigerants ACCA webinar Honeywell Confidential - © 2019 by Honeywell International Inc. All rights reserved. 2

REFRIGERANT TRANSITIONS 1987 Montreal Protocol Ozone Depletion Concerns 1996 Kyoto Protocol Global Warming Concerns 2011 EU MAC Vehicle Refrigerant GWP< 150 CFCs HFCs HFOs Chlorofluorocarbons Hydrochlorofluorocarbons Hydrofluoroolefins Ozone Depleting ODP 1. 0 ODP 0. 1 ODP ~0 ODP ~0 Global Warming GWP 8000 GWP 2000 GWP 1000 GWP < 1 Honeywell Products Genetron®/Genesolv® Genetron® Enovate® Solstice® Over time, more environmental friendly refrigerants have been adopted ACCA webinar Honeywell Confidential - © 2019 by Honeywell International Inc. All rights reserved. 3

R 410 A JOURNEY R-12 R-22 R-410 A New GWP <750 ODP ~0 GWP = 10900 ODP = 1 GWP = 1810 ODP = 0. 05 GWP = 2088 ODP ~0 Desired: • Similar pressure • Low pressure • Slightly higher pressure • Higher pressure • POE lubricant • Mineral oil or alkylbenzene • POE lubricant • Nonflammable • Non-flammable • Non- flammable • Similar systems Minimum changes during refrigerant transition are desired ACCA webinar Honeywell Confidential - © 2019 by Honeywell International Inc. All rights reserved. 4

DESIRED NEW REFRIGERANT Needs • • Nonflammable Similar pressure POE lubricant Similar system ACCA webinar Features Benefits • Nonflammable • Similar pressure and capacity to R-410 A • Uses POE lubricant as R-410 A • Matches R-410 A efficiency • Lower GWP • • Increased safety during handling Potentially lower insurance cost Lower risk of incident Familiarity with technology - no new procedures • Avoid cost on re-training • Avoid cost of new tools • Known equipment to handle, install and service • Saves time for each install • Complies with anticipated regulations Honeywell Confidential - © 2019 by Honeywell International Inc. All rights reserved. 5

BUILDING CODE OVERVIEW: FLAMMABILITY IS A CONCERN Huge complexity in new code development and implementation of flammable refrigerant as safety is a concern • US Building Codes do not allow A 2 L with large refrigerant charge sizes in buildings • Work in progress with regulatory and code bodies • Trying to determine how to handle A 2 L safely • Will likely require – risk mitigation sensors, ventilation, retraining • Will require understanding and following the new procedure Honeywell Nonflammable Solution Would Not Require Any Change To Codes ACCA webinar Honeywell Confidential - © 2019 by Honeywell International Inc. All rights reserved. 6

NONFLAMMABLE REFRIGERANT: BENEFITS Benefits A 1 A 2 L Easy and safe to use Comments • Mission is safety and productivity • Safe at every step: Handling, transit, service and use • No building code updates needed Simpler to adopt • No retraining • Quick response to regulatory changes • No variation to transportation routes Lower Cost to Implement • No changes to trucks or tools • No additional insurance No disruption to business model • Requires less time as no additional work for fire risk mitigation inside the building (sensors, recalibration) • Easy and safe for contractors to sell and install • No changes needed by distribution network A 1 is safe, simple and lower cost solution ACCA webinar Honeywell Confidential - © 2019 by Honeywell International Inc. All rights reserved. 7

HONEYWELL SOLSTICE® N 41 R-466 A is provisional ASHRAE number for Solstice® N 41 ACCA webinar

SOLSTICE® N 41 | ASHRAE Nonflammable and low toxicity (A 1) based on preliminary ASHRAE classification • Solstice® N 41 also known as Honeywell Developmental Refrigerant (HDR-146) received preliminary A 1 classification (R-466 A) by ASHRAE committee Solstice® N 41 offers the same safety classification (A 1) as R-410 A ACCA webinar Honeywell Confidential - © 2019 by Honeywell International Inc. All rights reserved. 9

10 SOLSTICE® N 41: R-410 A LIKE AND LOWER GWP SAFETY • ASHRAE A 1 Rating* which implies • Lower Toxicity • Nonflammable PERFORMANCE • Capacity >95% • Energy Efficiency >100% ENVIRONMENT • Global warming Potential (GWP) <750 • Ozone Depleting Potential (ODP) ~0 Nonflammable and Lower GWP R-410 A Replacement *Provisional Similar to R-410 A in performance and efficiency but ~65% lower GWP ACCA webinar Honeywell Confidential - © 2019 by Honeywell International Inc. All rights reserved. 10

PRESSURE TEMPERATURE RELATIONSHIP R-466 A* Evaporator Temperature Condensing Temperature R-410 A Temperature (°F) Average Pressure (PSIG) 30 32 34 36 38 40 42 94 96 98 100 102 104 106 108 92. 9 96. 8 100. 7 104. 8 108. 9 113. 2 117. 6 276. 7 284. 8 293. 1 301. 6 310. 2 319. 0 328. 1 337. 2 30 32 34 36 38 40 42 94 96 98 100 102 104 106 108 97. 2 101. 3 105. 4 109. 7 114. 1 118. 6 123. 2 291. 7 300. 3 309. 1 318. 1 327. 2 336. 6 346. 2 356. 0 *Provisional ASHRAE number Solstice® N 41 and R-410 A have Similar Operating Pressures ACCA webinar Honeywell Confidential - © 2019 by Honeywell International Inc. All rights reserved. 11

SOLSTICE® N 41: PERFORMANCE Capacity Q COP Name ASHRAE GWP (AR 4) (AHRI A) (AHRI B) Flow rate Diff. Tdisch (°C) Pdisch Evap. Glide (°C) R-410 A A 1 2088 100% 0. 1 R-32 A 2 L 675 105% 100% 70% + 17. 2 102% 0. 0 R-466 A* A 1 733 99% 100% 105% + 8. 0 95% 1. 2 *Provisional ASHRAE number • Closest match to R-410 A performance • Can be used with same size/design of compressor and heat exchangers • Small evaporator glide shows no significant impact on heating mode (frost formation) ACCA webinar Honeywell Confidential - © 2019 by Honeywell International Inc. All rights reserved. 12

EXPERIMENTAL PERFORMANCE EVALUATION 3 Ton, 13 SEER R-410 A Heat Pump +5% higher efficiency 105% Solstice N 41 Capacity Solstice N 41 Efficiency HDR 146 Cap. HDR 146 Eff. Cooling 100% Heating % of R 410 A 95% 90% • Solstice® N 41 (R-466 A) matches performance of R 410 A at rating conditions, with up to 5% higher efficiency at high ambient • R-466 A can operate at equal or higher efficiency than R-410 A without requiring substantial changes 85% 80% 3 H 2 H 1 (1 EX TR EM E (1 T O H H ) 31 F ) 26 F ) F 15 (1 C M O (9 R I A H A AH R I B (8 2 5 F) F) 75% Solstice N 41 has higher efficiency than R-410 A at high ambient temperature ACCA webinar Honeywell Confidential - © 2019 by Honeywell International Inc. All rights reserved. 13

SOLSTICE® N 41: DISCHARGE TEMPERATURE Discharge Temperature [Deg. F] 280 R 410 A Cooling R 32 N-41 Heating Compressor Maximum Discharge Temperature 131 o. F Ambient Temperature 120 o. F Ambient Temperature 210 140 70 0 C (Dry) B (Eff) A (Cap) MOC (115) Hot (126) Extreme (131) H 1 (Rating) H 2 (Frost) H 3 (Low Temp) Discharge temperature of R-466 A is close to R-410 A (significant advantage over R 32) Discharge temperature of Solstice N 41 is close to R-410 A ACCA webinar Honeywell Confidential - © 2019 by Honeywell International Inc. All rights reserved. 14

A 1 BENEFITS: ACROSS VALUE CHAIN No. of players OEM Plant Wholesaler Contractors Homeowner/ Building Owner Tens Hundreds ~Thousands Millions • Lower cost for storage and handling • Lower cost to transport • Lower risk of incident at all touch points • Familiarity with technology • Potentially lower total cost of new installation – No new sensors and associated calibration issues or solenoids • Potentially lower maintenance • Potentially lower insurance cost • Lowers the risk of fire • Offers peace of mind Rationale for • Reduce cost to retrofit continuing to use assembly plant A 1 as compared to • Lowers risk of incident A 2 L refrigerants in HVAC application - no new procedures • Avoid cost on re-training • Avoid cost of new tools • Increased safety during handling • Less time to install new system • Known equipment to handle, install and service • Potentially lower insurance cost • Lower risk of incident Reduce Cost of Implementation and Risk Across the Value Chain ACCA webinar Honeywell Confidential - © 2019 by Honeywell International Inc. All rights reserved. 15

SOLSTICE® N 41 | RESIDENTIAL / COMMERCIAL / LIGHT COMMERCIAL APPLICATIONS Honeywell Application Guide Positive Feedback for N 41, the Newest Addition to Honeywell Product Portfolio ACCA webinar Honeywell Confidential - © 2019 by Honeywell International Inc. All rights reserved. 16

AS A RESULT OF PERCEIVED BENEFITS… 15+ OEMs Engaged Globally 5+ Compressor Manufacturers 5 Applications 5+ Other Equipment Great Enthusiasm Globally to Test and Approve Solstice® N 41 ACCA webinar Honeywell Confidential - © 2019 by Honeywell International Inc. All rights reserved. 17

SOLSTICE® N 41: SUMMARY Maintains safety levels Lower conversion costs, across the value chain and offers environmental benefits due to lower GWP of 733 as it is nonflammable and offers performance similar to R-410 A Operates at equal or higher efficiency (at higher ambient) Tested at Honeywell labs and than R-410 A with minimal changes to system design ACCA webinar working with compressor, system and component manufacturers to qualify the product Honeywell Confidential - © 2019 by Honeywell International Inc. All rights reserved. 18

QUESTIONS WE HAVE HEARD 1. Will the same tools and service procedures be used to service/start up R-466 A airconditioning systems? 2. R-466 A has glide, is this a concern? 3. Will current leak detectors work with R-466 A? 4. Can R-410 A systems be retrofitted to R-466 A? 5. Will line sizing of R-466 A be the same as R-410 A? 6. Is R-466 A flammable? ACCA webinar Honeywell Confidential - © 2019 by Honeywell International Inc. All rights reserved. 19

DISCLAIMER Although Honeywell International Inc. believes that the information contained herein is accurate and reliable, it is presented without guarantee or responsibility of any kind and does not constitute any representation or warranty of Honeywell International Inc. , either expressed or implied. A number of factors may affect the performance of any products used in conjunction with user’s materials, such as other raw materials, application, formulation, environmental factors and manufacturing conditions among others, all of which must be taken into account by the user in producing or using the products. The user should not assume that all necessary data for the proper evaluation of these products are contained herein. Information provided herein does not relieve the user from the responsibility of carrying out its own tests and experiments, and the user assumes all risks and liabilities (including, but not limited to, risks relating to results, patent infringement, regulatory compliance and health, safety and environment) related to the use of the products and/or information contained herein. ACCA webinar Honeywell Confidential - © 2019 by Honeywell International Inc. All rights reserved. 20

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