Experience

General Duty Clause Requirements

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Source Article: Condenser by IIAR (Fall 2024) https://iiarcondenser.org/wp-content/uploads/2024/11/40354-IIAR-Condenser3_compressed.pdf General Duty Clause Requirements Identify Hazards Using Appropriate Hazard Assessment Techniques The United States EPA National Enforcement and Compliance Assurance Program implemented several national compliance initiatives (NCIs) effective for FY2020-2023. One of these NCIs is titled “Reducing Risks of Accidental Releases at Industrial and Chemical Facilities .”IIAR […]

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Refrigerant Classification

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Refrigerant Classification Source Image: https://www.southernphc.com/articles/what-you-need-to-know-to-handle-a2ls-sately/ At Carlson & Stewart Refrigeration, Inc. we strive to design and install superior commercial and industrial refrigeration systems. One of the key components to delivering on this is selecting the best refrigerant for the desired application as well as keeping up to date on any potential changes or limitations to

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Doors vs No Doors – Refrigerated Supermarket Retail Cases

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Doors vs No Doors – Refrigerated Supermarket Retail Cases If you are reading this, you are probably no stranger to the fact that refrigerated retail case manufacturers sell cases both with and without doors. So you might be wondering which you should choose in your store? Well, like many choices in life, the answer always

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Honeybee’s

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Honeybee’s By Chris Savage You might be thinking, why the heck would there be a blog post on a refrigeration website about honeybee’s?  Up to about a month ago, I would have been thinking the same thing! Recently Carlson & Stewart Refrigeration was contacted by a local, South Dakota, honey producer.  He called with some

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Moisture Control

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Moisture Control By Chris Savage Moisture control…..what does that mean? Relative humidity, dew point, condensation, evaporation, dry bulb, wet bulb, enthalpy, specific volume, humidity ratio, vapor pressure, dehumidification, desiccant, reheat, grains of moisture…..these are all terms that you might come across when you start talking about moisture control. If any of this terminology is unfamiliar

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Ammonia Liquid Migration and Cold Weather Startup

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Those of us in the northern climates are familiar with the cruel outside conditions.  Old Man Winter lets loose his cool breathe and our backyards and driveways become frigid winter lands that make us always think…“why the hell do I live here again?!”  Those of us in the northern climates and familiar with central ammonia

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Preventative Maintenance Basics – Condenser and Evaporator Coils

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With fall fast approaching it is a great time to remind everyone about the importance of commercial refrigeration routine maintenance. Maintaining your systems for optimal energy efficiency is great for the environment and for your pocketbook. Whether you do the maintenance yourself or have a preventative maintenance agreement with Carlson and Stewart Refrigeration, the importance

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Is an Ammonia Refrigeration Evaporative Condenser a Permit- Required Confined Space (PRCS)?

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Source Article: Condenser by IIAR By Bryan Haywood Carlson & Stewart Refrigeration (CSR) has been asked this question many times in the past and we have found that many people have their own interpretations.  In larger systems we have stressed people to follow their PSM guidance. This article will explore the questions so many have

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