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Retrofit HFCs

Retrofit Alternatives to R22 and other HCFCs following Phase Out

BOC is the largest supplier of packaged refrigerants in the UK and Ireland, and for those impacted by the R22 and HCFC phase out, provides the widest product range of HFC retrofit refrigerant gases available including the leading ISCEON™ products such as R422D.

Below are case studies that show how their performance compares with the HCFC refrigerants they have replaced.

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Retrofit Products and Case Study Information

DuPont™ ISCEON® Products

Easy-to-use, non-ozone-depleting HFC retrofit refrigerants for CFC and HCFC equipment, including the leading retrofit gas R422D.

  • Provides easy, quick, cost-effective retrofits
  • Non-ozone-depleting HFCs
  • In most cases, no change of lubricant type during retrofit is required
  • Can be topped off during service without removing the entire charge
  • Provides required performance after retrofit
  • Lower operating temperatures and/or pressures versus R22

Benefits:

  • Enables continued use of existing equipment with minimal downtime for retrofit
  • Avoids costly equipment replacement for equipment owner
  • Provides potential for improved compressor reliability and life
  • Enables accelerated transition away from ozone-depleting refrigerants
  • Facilitates compliance with environmental regulations
  • Provides opportunity to promote environmental leadership

Easy-to-use retrofit refrigerants for every application

ISCEON® Pressure Temperature Guide 73kb
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ISCEON® MO29 (R422D)

R422D has emerged as the leading retrofit alternative to R22, and is being successfully used in numerous applications across a wide temperature range.

ISCEON® MO29 or R422D is an easy-to-use, non-ozone-depleting HFC refrigerant for replacing R22 in low- and medium-temperature direct expansion (DX) refrigeration applications, including commercial supermarket systems, and in stationary DX air-conditioning applications, including DX water chillers.

ISCEON® MO29 / R422D Product Factsheet 17kb
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ISCEON® MO29 / R422D Safety Datasheet 27kb
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ISCEON® MO29 / R422D Pressure Enthalpy Chart 1.8MB
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Case Studies

ISCEON® MO29 - Building Air Conditioning Case Study 86kb
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ISCEON® MO29 - Stellar Group Case Study 1.3MB
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ISCEON® MO29 - Banana Storage Case Study 177kb
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ISCEON® MO29 - Milk Processing Case Study 73kb
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ISCEON® MO29 - Restaurant Case Study 603kb
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ISCEON® MO29 - REWE Supermarket Case Study 233kb
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ISCEON® MO29 - Pathmark Supermarket Case Study 233kb
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ISCEON® MO29 - ABCO Refrigerant Case Study 96kb
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ISCEON® MO29 / R422D Retrofitting Guidelines 219kb
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ISCEON® MO59 (R417A)

ISCEON MO59 or R417A is an easy-to-use, non-ozone-depleting HFC retrofit refrigerant for R22 in direct expansion stationary air-conditioning (AC) and medium-temperature commercial refrigeration systems.

ISCEON® MO59 Product Information Sheet 16kb
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ISCEON® MO59 / R417A Safety Data Sheet 28kb
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ISCEON® MO59 / R417A Pressure Enthalpy Chart 1.8MB
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Case Studies

ISCEON® MO59 - Refrigeracion STARR Case Study 102kb
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ISCEON® MO59 - Air Four Case Study 1.0MB
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ISCEON® MO79 (R422A)

ISCEON® MO79 or R422A is an easy-to-use, non-ozone-depleting HFC refrigerant for replacing R22, R502 and HCFC-containing refrigerant blends in low-temperature commercial and industrial direct expansion refrigeration systems. (Can also be used for medium temperature systems)

ISCEON® MO79 Product Information Sheet 17kb
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ISCEON® MO79 / R422A Safety Data Sheet 23kb
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ISCEON® MO79 / R422A Pressure Enthalpy Chart 1.8MB
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Case Studies

ISCEON® MO79 - IBL Cold Stores Case Study 123kb
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ISCEON® MO79 / R422A Retrofit Guidelines 207kb
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ISCEON® MO99 (R438A)

ISCEON® MO99 (R438A) is a new retrofit refrigerant for R22 replacement, designed specifically for DX water chillers with capacity critical Thermostatic Expansion Valves. MO29 (R422D) remains the multipurpose refrigerant and gives a satisfactory performance in the majority of DX water chillers.

ISCEON® MO99 (R438A) Product Information Sheet 17kb
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ISCEON® MO99 (R438A) Retrofit Guidelines 207kb
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ISCEON® MO99 / R438A Safety Data Sheet 32kb
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ISCEON® MO99 / R438A Pressure Temperature Table 145kb
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ISCEON® MO99 / R438A Pressure Enthalpy Diagram 142kb
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Case Studies

ISCEON® MO99 vs ISCEON® MO29 Water Chiller Case Study 220kb
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RS Series Products

The RS refrigerants are non-ozone-depleting and can be used with both traditional lubricants and the new synthetic lubricants. They provide a simple and low-cost method for switching away from HCFCs.

RS Series R22 Applications Summary 29kb
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RS Series Application and PT Tables 50kb
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RS Series in Water Chillers Summary 37kb
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RS-44 (R424A)

Suitable for replacing R22 in air-conditioning applications across the range of equipment, and can be used in systems with a capillary as well as an expansion device. Also replaces R411B, R415A and R418A.

RS-44 (R424A) Product Information Sheet 17kb
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RS-44 (R424A) Safety Data Sheet 23kb
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RS-44 (R424A) Pressure Temperature Table 23kb
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RS-44 (R424A) Pressure Enthalpy Chart 155kb
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Case Studies

RS-44 Air Conditioning - Cable & Wireless Case Study 119kb
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RS-44 Air Conditioning - Kincore Holdings Case Study 135kb
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RS-44 Heat Pump Trial 32kb
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RS-44 Walk-In Cooler Trial 34kb
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RS-44 Window Air Conditioner Trial 29kb
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RS-44 Walk-In Cooler, Canada Trial 135kb
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RS-45 (R434A)

Potential option for OEMs and can also be used to replace R22 across the range of applications and temperatures including air-conditioning and low-temperature refrigeration. RS-45 is a capacity match for R22 but should not be used in systems with a capillary.

RS-45 (R434A) Product Information Sheet 17kb
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RS-45 (R434A) Safety Data Sheet 27kb
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RS-45 (R434) Pressure Temperature Table 19kb
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RS-45 (R434) Pressure Enthalphy Chart 36kb
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Case Studies

RS-45 Flooded Chiller, British Energy, UK 80kb
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RS-45 Huike Trial Results 7kb
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RS-52 (R428A)

Essentially, RS-52 is similar to R507 in its performance, has similar pressures and is near azeotropic with a glide of <1 degree centrigrade. RS-52 has been designed as a replacement for R502 and the interim ozone-depleting blends (e.g. R402A, R408A, R403B etc.), but it is also an excellent replacement for R22 at low temperatures where the system is designed to withstand R502 pressures.

RS-52 (R428A) Product Information Sheet 17kb
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RS-52 (R428A) Safety Data Sheet 27kb
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RS-52 (R428A) Pressure Temperature Table 27kb
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RS-52 (R428A) Pressure Enthalpy Chart 52kb
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Case Studies

RS-52 Trial 42kb
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Arkema Products

Forane® R427A is a non-toxic, non-flammable zero-ODP refrigerant

Features and Benefits

Forane® R427A is a 100% HFC blend. It is consequently compatible with polyol ester (POE) oil. However one characteristic of Forane® 427A is to tolerate a high residual amount of original oil in the POE lubricant (good oil return up to 10-15% residual AB or mineral oil), which allows the simplified retrofit procedure.

Forane® R427A only requires one oil draining and its replacement by a POE lubricant.

Optimal performance close to R22 can be achieved without long and costly rinsing process of the circuit thanks to a high tolerance toward residual original oil (mineral or alkylbenzene).

No modification of the installation is required.

Applications and Uses

Forane® R427A is a simplified retrofit solution for R22 existing direct expansion installations in a large range of applications. It can be used to retrofit low-temperature refrigeration equipment as well as air-conditioning installations.

Arkema's Forane® 427A Presentation 3.0MB
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Forane® 427A Pressure Temperature Chart 194kb
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Case Studies

Forane® R427A Liquid Chiller Case Study 455kb
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Forane® R427A Supermarket Case Study 642kb
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Forane® R427A Water Chiller Case Study 560kb
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Forane® R427A Biscuit Factory Case Study 261kb
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Disclaimer

The information on this website is furnished free of charge and is based on the technical data provided by BOC's suppliers which is believed to be reliable at the time it was provided. It is intended for use by persons having the appropriate technical skill, at their own discretion and risk. Because conditions of product use are outside our control, we make no warranties, expressed or implied, and assume no liability in connection with any use of this information. For technical support please refer to BOC or HRP prior to use.