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JOHN TOMCZYK

Retrofitting R-22 with R-438A Requires Minimal System Changes

Versatile blend suitable for medium- and low-temp refrigeration systems
December 4, 2017
For many years, R-22 was the refrigerant of choice for commercial and residential air conditioning and heat pump systems. Supermarket refrigeration systems, industrial centrifugal chillers, and industrial cooling applications also used R-22.
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Agas

A-Gas Acquires Diversified Pure Chem

Acquisition is eighth worldwide since 2012 for A-Gas Group Intl.
October 4, 2017
A-Gas, Bowling Green, Ohio, has acquired Diversified Pure Chem (DPC) LLC, Rhome, Texas. DPC, a reclaimer and supplier of refrigerant gases, operates 13 refrigerant collection and distribution hubs nationwide and has a 40,000 sq. ft. separation and blending facility in Texas. DPC offers a full line of refrigerants including HCFC and HFC replacements.
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Emerson Calc

Emerson Launches GWP Phase Down Calculator

Tool is designed to help retailers transition to lower-GWP refrigerant alternatives
October 4, 2017
Emerson has launched a refrigerant calculator designed to help retailers forecast the impacts of phasing down higher-global-warming potential (GWP) systems and phasing in new refrigerant architectures.
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electrical and mechanical hookup

Inside Refrigerant and Oil Relationships

The two must be soluble in one another
John Tomczyk
October 2, 2017
Under normal conditions, there will always be a small amount of oil that escapes a compressor’s crankcase and is circulated with the refrigerant throughout the system. It is for this reason that refrigerant oil and the refrigerant itself must be soluble in one another. It is the velocity of the circulated refrigerant that carries the oil back to the compressor’s crankcase. If the two were not soluble in one another, this phenomenon could not happen.
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REFRIGERANT RECOVERY

EPA 608 Recordkeeping Impacts Technicians

App helps alleviate refrigerant burden placed on contractors
Kostora
Nick Kostora
July 31, 2017
The EPA estimates the annual emissions reductions from this rule will be approximately 7.3 million metric tons of carbon dioxide equivalent (MMTCO2eq) and 114 ozone-depletion weighted metric tons (ODP tons).
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NIST

New Research from NIST Identifies Research Needs for Alternative Refrigerants

Researchers must look beyond nonflammable chemicals
April 3, 2017

NIST’s study, entitled “Limited options for low-global warming potential [GWP] refrigerants,” focused on residential and small-commercial single-package and split air conditioning systems, but the authors said their conclusions also generally apply to room air conditioning units and other refrigeration and heat-pump systems currently using common, ozone-depleting refrigerants such as R-410A or R-22, which are still used in some developing countries today. “The takeaway is there is no perfect, easy replacement for current refrigerants,” NIST chemical engineer Mark McLinden said.


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R-410A

Is R-410A Here to Stay?

In a world of phaseouts and phasedowns, R-410A seems safe – for now
Ron Rajecki
March 13, 2017
The U.S. Environmental Protection Agency (EPA) has not given any indication that it will target R-410A in residential applications, and under the Trump administration, the agency may perhaps be less aggressive than it was under the Obama administration and, therefore, less likely to push for additional refrigerant phasedowns.
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ultra

Errecom S.r.l: Gas Leak Sealant

March 6, 2017

Extreme Ultra is a solution designed to repair refrigerant gas leaks by guaranteeing a complete, permanent, and elastic endurance of the system. It’s a mix of components, which are gas- and lubricant-friendly.


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