🍒 Can a house run out of oxygen? : HVAC

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r/HVAC: All things related to HVAC - Heating, Ventilation, & Air Conditioning. Do gas furnace rooms use up any Oxygen in the summer (when only the AC is.


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Ever wondered how an HVAC system works? carbon dioxide, and other gases as well as temperature control and oxygen replenishment.


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HVAC) is the process of exchanging or replacing air in any space to provide high indoor air quality which involves temperature control, oxygen replenishment,​.


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r/HVAC: All things related to HVAC - Heating, Ventilation, & Air Conditioning. Do gas furnace rooms use up any Oxygen in the summer (when only the AC is.


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Did you know that optimal CO2 in HVAC is important for energy savings and Heating, ventilation, and air conditioning (HVAC) is typically not considered a Hej how is the relationship, increasing ppm CO2 versus oxygen level in the.


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r/HVAC: All things related to HVAC - Heating, Ventilation, & Air Conditioning. Do gas furnace rooms use up any Oxygen in the summer (when only the AC is.


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In today's blog we are going to look at one particular urban legend that is closely linked to the HVAC industry: Casinos pump oxygen into the air to keep people.


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Oxy Acetylene Brazing Tips and Tricks For HVAC Techs

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1dma.ru › how-to › hvac › the-oxygen-diffusion-debate_o.


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Automating the HVAC System! - Ep. 34 - ONI Occupational Upgrade! - Oxygen Not Included Gameplay

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HVAC) is the process of exchanging or replacing air in any space to provide high indoor air quality which involves temperature control, oxygen replenishment,​.


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Ever wondered how an HVAC system works? carbon dioxide, and other gases as well as temperature control and oxygen replenishment.


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Instead of pressure displacing oxygen, heavier-than-air substances displace oxygen with density. Specifically, these guys entered a room in a refrigeration plant where a centrifugal chiller was leaking R One other fatality occurred at an ice rink in Alaska where a basement refrigeration plant room was leaking R Aside from asphyxiation we also face challenges posed by straight up poison. Risks of Asphyxiation. The air we breathe every day is made up of 78 percent nitrogen, 21 percent oxygen, and one percent argon. Air is the same way in the sense that when a denser gas is introduced, it sits on the bottom half of the room, while the air — including the oxygen we breathe — floats on top. Carbon dioxide is one of many gases that are heavier than air. This example is with nitrogen, but you can replace nitrogen with any pressurized gas that displaces oxygen and you will face the same danger. But if you thought there was no danger you were wrong. The more the oxygen decreases below seven percent the higher your chance is of passing out. Exposure to Poisonous and Noxious Gases Aside from asphyxiation we also face challenges posed by straight up poison. Four of these fatalities happened in a shopping mall when workers entered a basement room where refrigerant had been leaking. Bottom Line — Follow Safety Procedures The good news is that you can avoid most kinds of inhalation accidents by following the proper safety procedures and understanding the risks in your work environment.{/INSERTKEYS}{/PARAGRAPH} An HVAC technician was working on a Genie lift and was supposed to cut an empty pipe that was in the way of a unit he was installing. In HVAC we learn early on that most refrigerants are also heavier than air. What you do is hook up a sniffer tube to a small torch with a copper element in the flame. These are very real and deadly dangers. A common example is chlorine gas, a chemical weapon and also a byproduct of mixing cleaning products that contain ammonia and bleach. It just takes a second to get permanent lung or eye damage, and you can get permanent brain damage in a matter of minutes. This is especially true for those who work in industrial settings with systems that are meant to specifically ventilate noxious gases, but this topic is still relevant for all of us in the industry. The good news is that you can avoid most kinds of inhalation accidents by following the proper safety procedures and understanding the risks in your work environment. Carbon monoxide is perhaps the most common gas that displaces air, and is a byproduct of burning natural gas. All you need to do is take steps to increase air circulation like pumping air from the outside into the basement. He made a mistake and cut a pipe that was filled with peracetic acid, which subsequently sprayed the acid everywhere, effectively turning it into an aerosol. After just a few minutes with no oxygen you will sustain permanent brain damage. Luckily he realized something bad was happening and sounded the alarm before emergency services took him away. A less-common example — but very relevant for anyone working in HVAC — is phosgene gas. When you look at a glass bottle of salad dressing the oil less dense is on the top, and the vinegar more dense is on the bottom. However exposure to chemicals in the air and suffocation are often overlooked. To get a mental image of this, imagine salad dressing. Aside from poisonous byproducts like phosgene, sometimes you might just be confused and get exposed to toxic gases accidentally. In this case everything turned out okay. The US Department of Labor reports that between and , 38 HVAC techs lost their lives on the job due to exposure to harmful substances or environments. To avoid serious contamination, the HVAC tech jumped off the Genie lift and his coworkers immediately got him outside to fresh air. We can draw on a tragic example with the hopes of learning from past mistakes to illustrate the principle of heavier-than-air displacement asphyxiation. The two most obvious hazards we face in HVAC are falls and electric shocks. As the nitrogen gas — colorless and odorless — escapes into the room the oxygen content of the air is going to become lower. Bring the sniffer tube near any place you suspect a refrigerant leak, such as a pipe joint or AC unit, and if there is leaking refrigerant it will get sucked up into the sniffer tube and blown out through the flame. You could also enter a basement area with a self-contained breathing unit. We can illustrate a good example of air displacement with nitrogen. This is akin to shaking up a bottle of salad dressing to mix the oil and water homogeneously. There are easy ways to mitigate this risk. You should always have the appropriate tools for the job, which can include carbon monoxide detectors, gauges that measure oxygen content, and even self-contained breathing apparatuses for the most challenging and enclosed work spaces. The number is pretty low in the big scheme of things, but even one avoidable fatality is one too many. Add to that the fact that we work with a range of gases that are invisible and have no smell and that can seamlessly displace the oxygen in the air and suffocate us. It was only after burning a blue flame for a while — and subsequently sending the phosgene gas through the entire residential ventilation system, not to mention exposing himself to a fair amount — that he started to feel sick and realized something was amiss. The danger from these gases is a variation on air displacement. You have a right to a safe working environment complete with ventilators, respirators, and proper monitoring equipment whenever necessary. It happened at a housing complex and lead to the evacuation of 29 people when the HVAC repairman inadvertently produced phosgene gas as he tried to make repairs. After all, every breath we take is mostly nitrogen gas. Understanding the risks, being properly trained, and erring on the side of caution helps make sure everyone gets to go home at the end of the workday. Responsible for upwards of 85 percent of all deaths caused by chemical warfare in World War One, phosgene gas also happens to be a byproduct generated when brazing certain metals, and can also become present when testing for leaks using an antiquated method on refrigeration systems that run chloromethanes, R12 and R The residents of the small Pennsylvania borough Three Springs learned this the hard way when an HVAC technician was dispatched to repair a leaking AC unit and ended up in the hospital. Every year we lose guys in the field to toxic chemicals and asphyxiation. {PARAGRAPH}{INSERTKEYS}He called into his dispatcher to say he was nearly done and signed off for the evening.