Stay cool! Keep it running.

Carlson and Stewart wants to ensure that your equipment continues to run at optimal performance. On this blog, we offer important tips for maintaining your refrigeration equipment.

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Ammonia Liquid Migration and Cold Weather Startup Author: Erik Hansen                 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...
Remote Temperature Monitoring & Alarming   Here at Carlson & Stewart Refrigeration we hear something like this all too often:  “My cooler/freezer quit working last night….now all of my product is lost.” What do you do if your cooler or freezer stops working when you are away?  More than likely you have something inside of that cooler or...
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...
July Blog Entry Author: Jarod Hansen Source Article: Condenser by IIAR Is an Ammonia Refrigeration Evaporative Condenser a Permit- Required Confined Space (PRCS)? 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...
As summer approaches I thought it would be a good idea to revisit one of our previous blog postings from a few years back… How many of you have “scale” on your evaporative condenser? [I am guessing your hand might be in the air]. How many of you feel that this is “normal” and something that should be treated as a “side effect” from running an...
COVID-19 and Carlson & Stewart Refrigeration, Inc. Wow, the last month (more for others!) has been a whirlwind for every individual and every business around the world!  Carlson & Stewart Refrigeration, Inc. has not been an exception! However, we are proud to say that our team members have stepped up to the plate and are working hard to...
Secondary Refrigerants Are Worth A Second Look All refrigeration systems, at their very core, convert electrical energy into heat removal potential. Primary refrigerants typically do this via the refrigeration cycle of compressing, condensing, expanding and evaporating. Secondary refrigerants typically transfer heat from place to place without...
January Blog   (source website https://www.heatcraftrpd.com/regulatory/)   While we welcome the new year and all the challenges that come with it, the commercial refrigeration industry will see some energy efficiency changes. The Department of Energy (DOE) has implemented changes on new energy use standards that have become law across the country...
CO2 As A Refrigerant – IIAR Standard (source article:  “IIAR Moves Forward on CO2 Standard”, November 2019 Condenser Magazine)   Is CO2 as a refrigerant an option for you?  Carlson & Stewart Refrigeration, Inc. can help point you in the right direction.  CO2 is certainly gaining in popularity in the United States and more and more experience...
Source: http://r744.com/articles/9222/eevs_should_be_standard_equipment_says_u_s_energy_consultant EEVs Should be Standard Equipment, Says U.S. Energy Consultant Electronic expansion valves (EEVs), which are used in commercial display cases to automatically control the flow of liquid refrigerant into a direct expansion evaporator, should be a “...

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