Refrigerant Conversions

Replacements of HCFC and HFC with Co2 LPA Liquid Refrigerant Pumps

There is renewed interest in the use of natural refrigerants to replace existing HCFC and HFC compounds and also
in the use of cascade systems.

How to Convert R22 to MO99 Refrigerant Retrofit Guide

Summary – Steps to Retrofit
The following provides a summary of the basic retrofit steps for ISCEON® MO99.
(Detailed discussion of each step is provided in this bulletin.)

1. Establish baseline performance with existing refrigerant. (See retrofit checklist (attached))
2. Remove all the old (R22 or other) refrigerant from the system into a recovery cylinder. Weigh the amount removed.
3. Replace the filter drier and critical elastomeric seals/gaskets.

R22 Phase Out Guide – Advise on Alternatives and Guidelines for Users

This Guide provides details of how the new EC Regulation 2037/2000 on ozone depleting substances (ODS) will affect manufacture and use of refrigeration and air-conditioning equipment. The Guide is aimed at all key parties in the refrigeration and air-conditioning market including users, designers, equipment manufacturers, installation contractors and maintenance contractors.

Propane as R22 Replacement in Commercial Applications

Propane (R290) can be introduced in many of today’s R22 applications. No other single component refrigerant has such similar thermodynamic behaviour to R22…

Case Study Food Process Refrigeration Milk Chilling

A milk storage tank has been successfully converted from R22 to R407C, an HFC with expected long term availability into the future.The system comprised of two bulk storage tanks fitted with two refrigeration units running in parallel. The units used Prestcold compressors with air cooled condensers. One system was converted to R407C while the other was left running on R22 for reference.The retrofit was carried out using the now well documented procedure for converting to R134a.

Refrigerants for R22 Retrofits – Refrigerant Replacement Guide

Now that we are in the midst of the R22 phaseout, overtime the need to retrofit R22 systems is sure to rise. Exactly as to when that will happen remains the subject of debate and speculation…