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Types of Refrigerants
SBS-NC, LLC Commercial HVAC • February 23, 2023

All you need to know about refrigerants!

     

     Refrigerants are a vital component of HVAC systems, as they are responsible for cooling and dehumidifying indoor air. There are several different types of refrigerants used in HVAC systems, each with its own set of pros and cons. In this blog post , we will explore the different refrigerants used in HVAC systems, their advantages and disadvantages, and what can be expected in the future.


  • Chlorofluorocarbons (CFCs) - CFCs were once commonly used in HVAC systems, but have been phased out due to their negative impact on the environment. They are known to deplete the ozone layer and contribute to global warming. CFCs are no longer used in HVAC systems, and have been replaced by other refrigerants.


  • Hydrochlorofluorocarbons (HCFCs) - HCFCs were introduced as a replacement for CFCs, but are also being phased out due to their negative impact on the environment. While they are less harmful than CFCs, they still contribute to global warming and ozone depletion. HCFCs are being replaced by more environmentally friendly refrigerants. Some examples of HCFCs include R-22, R-123, and R-124. R-22, also known as chlorodifluoromethane, has been the most commonly used HCFC in HVAC systems. It is used as a refrigerant in air conditioning systems and heat pumps, as well as in industrial and commercial refrigeration systems. R-123, also known as dichlorotrifluoroethane, is used as a refrigerant in large centrifugal chillers. R-124, also known as dichlorofluoroethane, is used as a refrigerant in medium-temperature refrigeration systems. These HCFCs are being phased out in most countries due to their negative impact on the environment.


  • Hydrofluorocarbons (HFCs) - HFCs are the most commonly used refrigerants in HVAC systems today. They are non-toxic, non-flammable, and do not deplete the ozone layer. However, they are known to contribute to global warming and are being phased out in some countries. Some examples of HFCs include R-134a, R-410A, and R-404A. R-134a, also known as tetrafluoroethane, is commonly used as a refrigerant in automotive air conditioning systems and some commercial and residential air conditioning systems. R-410A, also known as azeotropic blend HFC-32/HFC-125, is commonly used as a refrigerant in residential and commercial air conditioning systems. R-404A, also known as azeotropic blend HFC-125/HFC-143a/HFC-134a, is commonly used as a refrigerant in commercial and industrial refrigeration systems. These HFCs are considered more environmentally friendly than CFCs and HCFCs, but they still contribute to global warming and are being phased out in some countries.


  • Natural Refrigerants - Natural refrigerants, such as ammonia, carbon dioxide, and hydrocarbons, are becoming more popular as a more environmentally friendly alternative to traditional refrigerants. They are non-toxic, non-flammable, and have a low global warming potential. However, they may require modifications to existing HVAC systems and may be more expensive.


  • Hydrofluoroolefins (HFOs) - HFOs are a new class of refrigerants that have a low global warming potential and are not flammable. They are being developed as a replacement for HFCs, which are being phased out in some countries. However, they may be more expensive than other refrigerants and may require modifications to existing HVAC systems. Some examples of HFOs include R-1234yf, R-1234ze, and R-1233zd. R-1234yf, also known as 2,3,3,3-tetrafluoropropene, is being developed as a replacement for R-134a in automotive air conditioning systems. R-1234ze, also known as trans-1,3,3,3-tetrafluoropropene, is being developed as a replacement for HFC-134a in commercial refrigeration systems. R-1233zd, also known as trans-1-chloro-3,3,3-trifluoropropene, is being developed as a replacement for HCFC-123 in low-pressure centrifugal chillers. These HFOs have a much lower global warming potential than HFCs and are considered more environmentally friendly. However, they may be more expensive and may require modifications to existing HVAC systems.


     The choice of refrigerant for an HVAC system depends on a variety of factors, including cost, efficiency, environmental impact, and safety. HVAC contractors must consider these factors when designing and installing HVAC systems for their clients.


     SBS-NC, LLC is an experienced commercial HVAC contractor that understands the importance of choosing the right refrigerant for each HVAC system. The company stays up-to-date on the latest trends and technologies in the HVAC industry, and is committed to providing environmentally friendly and cost-effective solutions for their clients.


     In the future, we can expect to see a continued focus on the development of more environmentally friendly refrigerants. This includes the development of new natural refrigerants and the continued improvement of HFOs. In addition, there may be a shift toward more energy-efficient HVAC systems, which can reduce the amount of refrigerant needed in the first place.


     It is important to note that the choice of refrigerant for an HVAC system is not the only factor that affects the environmental impact of the system. Proper maintenance and installation of the system can also have a significant impact on its efficiency and environmental impact. HVAC technicians must be trained to handle refrigerants safely and must follow proper procedures to minimize leaks and reduce the impact of refrigerants on the environment.


     In conclusion, the choice of refrigerant for an HVAC system is an important decision that can have a significant impact on the environment and the efficiency of the system. HVAC contractors must consider a variety of factors when selecting a refrigerant, including cost, efficiency, and environmental factors. Please call SBS today for all of your HVAC and Electrical needs!


     SBS-NC, LLC is a Commercial HVAC and Electrical contractor operating in High Point NC, Winston Salem NC, Greensboro NC, Charlotte, NC and most of the Southeastern US. Call us today!





Commercial HVAC in Winston-Salem
By SBS-NC, LLC Commercial HVAC March 12, 2025
As winter fades and temperatures rise in Winston-Salem , commercial buildings must transition their Commercial HVAC systems from heating mode to cooling mode. This change is essential to maintain indoor comfort, energy efficiency, and prevent unexpected AC repairs that could disrupt business operations. Why the Seasonal Transition Matters Switching from heating to cooling isn’t as simple as flipping a thermostat . Over the winter months, your Commercial HVAC system accumulates dust, experiences wear and tear, and may have developed hidden issues. Without proper maintenance, your system could struggle to keep up with the summer heat, leading to inefficiency and costly AC repairs . Steps to Prepare Your Commercial HVAC for Cooling Season To ensure a smooth transition, follow these essential steps: 1. Schedule a Professional HVAC Inspection A licensed Commercial HVAC technician in Winston-Salem can inspect your system for wear and tear, refrigerant levels, and airflow issues. Catching minor problems early can help avoid expensive AC repairs later in the season. 2. Clean or Replace Air Filters Dirty filters restrict airflow, forcing your system to work harder and increasing energy costs. Changing filters regularly improves efficiency and indoor air quality, ensuring optimal performance for your cooling system. 3. Check Thermostat Settings Adjust your thermostat from heating to cooling and ensure it’s programmed for peak efficiency. Smart thermostats can help businesses in Winston-Salem reduce energy costs by automatically adjusting temperatures based on occupancy. 4. Inspect Ductwork and Vents Leaks or blockages in ductwork can reduce cooling efficiency and lead to uneven temperature distribution. Ensuring vents are clean and unblocked helps maintain consistent airflow throughout your commercial space. 5. Test Your AC System Before peak summer temperatures hit Winston-Salem, turn on your air conditioning system to check for unusual noises, weak airflow, or inconsistent cooling. If you notice any issues, schedule AC repairs immediately to prevent a breakdown during the hottest months. 6. Schedule Preventative Maintenance Routine maintenance is key to prolonging the life of your Commercial HVAC system. An HVAC professional can perform coil cleaning, check refrigerant levels, and ensure all components are functioning properly before heavy summer usage. Benefits of a Well-Maintained Cooling System Lower Energy Bills – A properly maintained Commercial HVAC system operates more efficiently, reducing energy consumption. Fewer Emergency AC Repairs – Preventative maintenance helps avoid sudden breakdowns and costly repairs. Improved Indoor Air Quality – Clean filters and ductwork help reduce allergens and pollutants, creating a healthier environment for employees and customers. Extended Equipment Lifespan – Regular maintenance reduces strain on your system, helping it last longer and perform better. Need Commercial HVAC Service in Winston-Salem ? If your business is preparing for the cooling season, our team at SBS-NC, LLC is here to help. We provide expert AC repairs and Commercial HVAC maintenance services to keep your system running smoothly all summer long. Contact us today to schedule your seasonal tune-up!
Finding the right Commercial HVAC contractor in Greensboro, NC
By SBS-NC, LLC Commercial HVAC February 21, 2025
When it comes to keeping your business comfortable year-round, choosing the right commercial HVAC contractor is crucial. Whether you need AC repairs, preventative maintenance, or a full system replacement, working with a trusted and experienced HVAC provider ensures efficiency, reliability, and cost savings. At SBS-NC, LLC , we’ve been serving businesses in Greensboro, NC and across the Southeastern U.S. since 1991. Unlike many HVAC companies, we self-perform all HVAC work—no subcontractors, no delays—just expert service you can trust. Here’s how to find the right commercial HVAC partner for your business and why SBS-NC, LLC is the best choice. 1. Look for Experience and Expertise Commercial HVAC systems are complex and require a specialized skill set that differs from residential HVAC work. When selecting a contractor, consider: Years in business – SBS-NC, LLC has over 30 years of experience handling all aspects of commercial HVAC systems. Certifications and training – Our technicians are fully certified and continuously trained in the latest HVAC technologies. Industry specialization – We work with businesses of all sizes, from small offices to large corporate facilities, ensuring tailored solutions for your needs. 2. Prioritize a Contractor Who Self-Performs All Work Many HVAC companies subcontract their work, which can lead to delays, inconsistent quality, and hidden costs. At SBS-NC, LLC, we take pride in handling all HVAC projects in-house. This means: ✔ No middlemen—just direct service from trained professionals. ✔ Faster response times and seamless project management. ✔ Greater accountability for quality and customer satisfaction. 3. Ensure They Offer Comprehensive Services A good commercial HVAC contractor should be able to handle all of your business’s HVAC needs, including: Preventative maintenance to keep your system running efficiently and reduce unexpected breakdowns. AC repairs to quickly restore cooling and comfort in your building. RTU (rooftop unit) replacements for improved energy efficiency and performance. Emergency services for urgent HVAC issues that can’t wait. At SBS-NC, LLC, we specialize in all of the above, helping businesses in Greensboro, NC stay ahead of HVAC issues before they impact operations. 4. Check Customer Reviews and Reputation A company’s reputation speaks volumes. Before hiring an HVAC contractor, check online reviews and ask for customer references. We take pride in our long-standing relationships with businesses across Greensboro and beyond. Our clients appreciate our reliability, professionalism, and ability to deliver top-notch HVAC services without outsourcing the work. 5. Look for Energy-Efficient Solutions Energy-efficient HVAC solutions can significantly reduce your operating costs. A reputable contractor will offer energy-saving options such as: High-efficiency HVAC systems Smart thermostats and zoning systems Regular maintenance to optimize performance At SBS-NC, LLC, we help businesses upgrade their systems for maximum efficiency and cost savings, ensuring long-term benefits. 6. Choose a Contractor That Understands Local Needs Greensboro’s climate presents unique challenges for HVAC systems, from hot, humid summers to chilly winters. A local contractor like SBS-NC, LLC understands these regional factors and can recommend solutions tailored to your business’s needs. SBS-NC, LLC is Your Trusted Commercial HVAC Partner When searching for a commercial HVAC contractor in Greensboro, NC, don’t settle for anything less than a trusted, experienced, and self-performing team. At SBS-NC, LLC, we are committed to delivering high-quality AC repairs, preventative maintenance, and system replacements to keep your business running smoothly. If you’re looking for reliable commercial HVAC services in Greensboro , contact SBS-NC, LLC today. Our team is ready to provide expert solutions tailored to your business’s unique HVAC needs. 📞 Call us today to schedule a consultation!
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How Does Snow Affect Commercial HVAC Units? As winter sweeps through Winston-Salem, NC , business owners must consider how snow and ice impact their commercial HVAC systems . Whether you run a retail store, office space, or industrial facility, the performance of your heating and cooling systems can make or break your comfort, productivity, and energy efficiency . Snow poses unique challenges for commercial heating and HVAC systems, and addressing these issues promptly can save you from costly heating repairs . In this blog, we’ll explore how snow affects commercial HVAC units and offer practical tips to protect your investment. The Impact of Snow on Commercial HVAC Systems 1. Blocked Airflow Snow accumulation around rooftop or outdoor HVAC units can block airflow, causing the system to overheat or malfunction. Restricted airflow reduces efficiency, leading to higher energy bills and unnecessary strain on the equipment. 2. Frozen Components Ice buildup on heat pumps, coils, and condenser units can damage essential components. Frozen parts may crack, leading to costly repairs or replacements. Prolonged exposure to freezing conditions without proper maintenance could also shorten the lifespan of your commercial HVAC system. 3. Excess Moisture Melting snow introduces excess moisture into your system. If not drained properly, this moisture can lead to rust, corrosion, and electrical issues, all of which can compromise the performance of your heating equipment. 4. System Overload During colder months, commercial heating systems often work overtime to maintain a comfortable indoor temperature. Snow and ice further increase the workload, putting your HVAC unit at risk of overheating or breaking down. 5. Roof Damage For rooftop HVAC systems, the weight of heavy snow can damage structural supports, potentially misaligning or damaging your unit. This not only impacts performance but also increases repair costs. Preventing Snow-Related HVAC Problems Protecting your commercial HVAC system from snow in Winston-Salem’s unpredictable winter weather doesn’t have to be complicated. Here are some preventative measures: -Clear Snow Regularly: Ensure snow is removed from around outdoor units to prevent airflow blockage. Be cautious to avoid damaging the equipment during snow removal. -Schedule Regular Maintenance: Professional HVAC inspections before winter can help identify vulnerabilities in your system, ensuring it’s ready for colder weather. -Install a Protective Cover: Consider using a cover designed specifically for commercial HVAC systems to shield the unit from snow and ice without obstructing airflow. -Inspect Drainage Systems: Ensure proper drainage to prevent water from pooling and freezing in or around your HVAC unit. -Monitor Roof Conditions: If you have a rooftop HVAC system, inspect your roof regularly to ensure it’s structurally sound and free from excess snow buildup. When to Call for Professional Heating Repairs in Winston-Salem, NC Even with preventative measures, winter weather can sometimes lead to unexpected HVAC problems. If you notice inconsistent heating, unusual noises, or spikes in energy bills, it’s time to call a commercial HVAC professional in Winston-Salem. Prompt attention to these issues can prevent minor problems from becoming costly emergencies. Why Choose Us for Your Commercial HVAC Needs in Winston-Salem, NC? As trusted experts in commercial HVAC systems, we understand the unique challenges winter brings to Winston-Salem businesses. Our services include: - Comprehensive commercial heating maintenance - Quick and reliable heating repairs - Energy-efficient HVAC upgrades tailored to your business Don’t let snow and ice take a toll on your commercial HVAC system. Contact us today to schedule an inspection or repair and keep your business running smoothly all winter long. Contact Us Looking for dependable commercial HVAC services in Winston-Salem, NC? Call us today or schedule an appointment online. Let us help you stay warm and efficient this winter.
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