Posts tagged refrigerant

Different Components of Your Cooling System

heat exchangerFrom the world of heating and cooling in St Louis near Wentzville, there exist many different components, all of which are designed to serve a purpose and many of which fly under the radar of our complete understanding.  We set out to change that, one element at a time and we are now looking at the refrigerant lines in your St Louis cooling near Wentzville MO. “The refrigerant lines carry a refrigerant substance to the condensing unit vaporized in the form of a gas, and return it to the evaporator coil in liquid form. These ‘lines’ are actually narrow tubes manufactured from a durable heat- and cold-resistant metal such as copper or aluminum.”

Now we arrive at the ductwork. In an HVAC system in St Louis, the ductwork refers to the system of ducts that transports air warmed or cooled by the system to the various areas of your home. These ducts are commonly made of lightweight aluminum. However, they may also be manufactured from steel, flexible plastic, polyurethane, fiberglass, or fabric.  Then we see the vents in your heating and cooling system in St Louis MO.  These are typically rectangular outlets where heat or cool air is transferred from the duct system to the actual rooms and spaces to be heated and cooled.

Elaborating more completely on the vents, we see that the metal is “Made of high- and low-temperature safe metal, similar to the lines we discussed earlier within the HVAC system.  The vents are located on or near the ceiling and are usually fronted with angled slats (“vents”). “These vents direct the treated air downward to where people are using the room. Often they may be manually controlled or even closed, to control the amount of heating or cooling and the area of the room to which it will be directed.”


The Scoop on Cooling Efficiency

energy efficiencyLooking even closer at heating and cooling dynamics in our recent research on behalf of your St Louis Cooling installation near Kirkwood MO, we stumbled upon rather interesting information surrounding the air conditioning and heat pump cycles.  “Air conditioners and heat pumps use the refrigerant cycle to transfer heat between an inside unit and an outside unit.”  The only way in which heat pumps differ from air conditioners is the fact that they can reverse by way of a special valve that does not exist for the AC, but does for the heat pump.

Both must operate within specified parameters that dictate a certain maximum level of energy consumption and new efficiency standards for central air conditioners took effect in 2015.  As was true with furnaces, the newer standards differed by region, having greater stringency in the South and Southwest than in the North. According to our recent research on behalf of your St Louis Cooling Repair near Kirkwood, new central air conditioners sold for installation in the South and Southwest must meet a minimum 14 SEER; for units installed in the North, the 13 SEER minimum remains unchanged. Air-source heat pumps must meet the 14 SEER minimum regardless of where they are installed. In addition, central air conditioners installed in the hot, dry Southwest must meet a minimum 12.2 EER (or 11.7 EER for larger models).  These are all numbers found online in our recent research and collected from reliable internet HVAC sources.

It is true that the cooling performance of ground source heat pumps is measured differently.  “In contrast, cooling performance of ground source heat pumps is measured by the steady state EER instead of a seasonal measure. The ENERGY STAR program’s minimum requirements for ground-source heat pumps are 21.1 EER for open-loop systems, 17.1 EER for closed-loop systems, and 16 EER for direct expansion (DX) units.”  We will pick up here later and dive deeper on your St Louis Heating sales and install’s behalf with room air conditioners.  Stay tuned to learn more about BTUs and how to decide just what your room or rooms need in order to keep cool in the hotter months.

What Kinds of Food are You Cooling? closer at the cold well units in the refrigeration category of sales and service, on behalf of the St Louis Heating and Cooling repair near St Peters MO, we find the drop-in style coolers in the refrigeration category justify more discussion than we have done thus far.  There are iced units at your Heating and Cooling sales in St Louis which cool the wells by maintaining ice inside the unit itself.  There exist refrigerated unis as well.  “Inside the walls of a cold wall unit, there are tubes of refrigerant that cool the well from the inside. These are very efficient for cooling dense products, but might be too intense for more delicate foods like fresh produce.”

If you are cooling more delicate foods and produces like grocery stores will need for keeping produce cold, then you may wish to look at a forced-air systems circulate cold air over products to keep them cool.  These, according to our St Louis Heating and Cooling research recently done, operate more like a traditional refrigerator. These are best for more delicate items like fresh produce, but may have trouble keeping dense products like dressings and cheeses cool, so you can see that much of your decision on style is based on the products for which you need the cooling unit to begin with.

In terms of access of your cooling refrigerator, keep in mind that most are designed to hold food pans. “They sit flush with the counter and are accessed from the top. Others are enclosed in glass, similar to countertop refrigerators. This type of drop-in chiller is great for merchandising refrigerated foods like desserts in the bottom well, and can hold dry goods on the shelves above.”  There are also, according to our research on behalf of your St Louis Heating and Cooling near St Peters MO, pass-thru models which allow customers to reach in and serve themselves.  These will have rear access units as well, when kitchen staff are the only ones with access.  This allows for quality and inventory control.


Reducing Greenhouse Emissions in Cooling Changes

climate changeWe can talk more, if you will, about the movement in the St Louis heating and cooling sales world, about GWP.  “GWP is a basic measure of a compound’s potential to trap heat in the atmosphere, also known as the greenhouse effect, when compared to carbon dioxide. R-410A, a widely used HFC refrigerant, has a GWP that is 2,088 greater than carbon dioxide. R-407C, another popular HFC, has a GWP of 1,774.”  In order to accommodate the atmosphere and do less damage to our ozone, it is important to find chemicals that do the least amount of destruction. According to our St Louis Heating and Cooling near Fenton, and the research and writing we do on their behalf, it is possible to continue to find refrigerants that cool with less and less damage to our atmosphere.

In global news on this subject, from your heating and cooling company in St Louis we found the following:  Later this year policy makers from 197 nations will be meeting in Dubai to finalize an agreement on how to phase down the use of HFCs in developed and developing countries and promote the use of low-GWP alternatives.

A little more than two years ago there was a release in the White House of the President’s Climate Action Plan, which is also very pertinent to this discussion.  In it was a regulatory blueprint for the production of cleaner energy, a more efficient transportation system, the promotion of energy efficient appliances and buildings, and the reduction of non-emissive greenhouse gases. The broad scope, or goal of this plan was to reduce (and still is) to reduce the greenhouse gas emissions, bringing them down to 17% less than they were in 2005, all by the year 2020.  Stay tuned for further details on how the St Louis Heating and Cooling industry near Fenton can play a role in helping this cause.

The Chemistry of Cooling

hot coldWhen looking at the cooling components of an HVAC system, we spent the last two posts diving into the actual breakdown of parts and what they do in their functioning to contribute to the cooling cause, on behalf of your St Louis Cooling Sales and Service near Hazelwood MO.  We covered the evaporator and the fan and coils therein, we also talked about the condenser and the fan it has to distribute cooling air into your space.  There is more to it and we will wrap up the other parts and functions here in the next two paragraphs on behalf of your St Louis Cooling Maintenance near Hazelwood MO.

All processes must have a starting point.  Here is how the cooling of your space will begin, “In between the evaporator and the condenser, is an expansion valve. The expansion valve has a crucial but simple job. It simply regulates the flow of the compressed refrigerant to the evaporator, for the cooling process to begin.”

Liquid changes over to gas.  Not sure if you realized there was chemistry involved in the process of heating and cooling your home, but where there is temperature change, there is typically chemistry and in this case, it comes in the form of phase change.  “Once the refrigerant is in the evaporator, the liquid changes states of matter. It changes into a gas. That’s where the next part of the cycle comes into play. The compressor is a pump that does just that. It compresses the refrigerant back into a liquid to start the process all over again.”  And, there you have it. That is the second part in a series regarding cooling your commercial, business and personal space and how it happens from start to finish, on behalf of your St Louis Cooling Installation near Hazelwood MO.

Cooling Components

cooling componentsWhen it comes to cooling your space, there is some basic knowledge that will prove helpful to you in the quest of efficiency and weighing of all the options.  We set out, on behalf of your St Louis Heating and Cooling service near Bridgeton in order to answer some of the most common questions with mostly knowledge gap filling.

Let’s start with Air Conditioning and the cooling of your commercial, business or personal space.  This is best understood by looking first at the individual components involved in the cooling process to begin with.  There are four main components in any air conditioning unit. Each plays a significant role in cooling and maintaining the temperature in your home or office space.

The first component in your cooling system from St Louis is the evaporator.  The evaporator is fed liquid refrigerant.  The evaporator and the refrigeration coils, or cooling coils are synonymous.  The refrigerant is the liquid substance that is found in the evaporator and is typically the key ingredient for cooling the unit.  The evaporator has coils and also a fan for cooling your space.  This distributes the cool air away from the evaporator and out into the space.  The condenser is next in the cooling process according to our research done on behalf of your St Louis Cooling Repair near Bridgeton MO.  “The condenser is also referred to as the hot coils. The condenser is in charge of facilitating the heat transfer, from inside the home to the outside. There is a fan associated with this part also, similar to the evaporator’s job.”  We will move on to more parts in the next post here regarding cooling your space in St Louis.

Portable Cooling Solution

Business strategy businessman planning and finding a solution thLooking at the cooling side of things from your American Services Cooling Installation Service in St Louis near Fenton, we find that all air conditioners work in basically the same way, unlike heating units.  “All air conditioners work basically in the same way: A cycle of evaporating and condensing refrigerant cools the air on the inside of the room and releases heat to the outside. As an added benefit, cooler air holds less moisture, so an air conditioner removes humidity naturally: great for your comfort and your cast iron.”

So, then, what if any differences exist amongst the large number of St Louis Cooling sales options?  BTU capacity and shape will be the main two things that vary from one cooling unit to the next.  There are different types of cooling systems that are named and retain differences based on shape which also pertains directly to their style and function.  Portable units for example, where the name speaks for itself, may be a preferred choice depending on your heating and cooling situation in St Louis near Fenton MO.  These are usually smallish and are rollaway, portable AC units that are often times on the lower end of the price range scale also.  “But don’t expect one to counter triple-digit heat, or cool large or uninsulated spaces. It’s more useful in mild climates requiring only occasional cooling. And it needs only a 110-volt outlet and a door, window, or cut-out to accommodate its vent hose, which exhausts the hot air and humidity to the outside.”

One more note to make for those of you cooling your smaller home or office space in a not-so-extreme climate situation, is that if you end up deciding on a portable AC unit of some sort, you will want to strongly consider a more efficient dual-vented unit.  These will be able to effectively isolate the hot outside air without venting the room you are trying to cool and losing the already cooled air.  They end up being, what experts online consider, the best option for people in the portable cooling solution market.

Recycling HVAC Refrigerant

recycleWhen it comes to the world of HVAC, it is the same as many other industries as of late.  They all want to do their part to help reduce energy usage, both for the consumer and their pocketbooks, along with the environmental benefits that go with it.  “The Air-Conditioning, Heating, and Refrigeration Institute (AHRI) has published updates to AHRI Guideline Q, Content Recovery and Proper Recycling of Refrigerant Cylinders, which now includes best practices for end-of-life recycling of flammable refrigerant containers.”  So, as mentioned above and discovered in our recent research on behalf of your Earth City HVAC repair near Sunset Hills, there are definitely guidelines to follow when it comes to energy and disposal.

“This guideline and the new additions are a critical part of the industry’s plan for the future of refrigerants,” said Stephen Yurek, AHRI president and CEO. “  There are flammable refrigerants that are being introduced in the world of HVAC as low global warming potential alternatives to the refrigerants that are widely used today.  As this takes place, it becomes a huge topic of discussion, just how these refrigerants are being handled.  They must be recycled and handled properly, not only the substance itself, but the container in which they are being held.

The practices that are being suggested, according to your HVAC Sales and Service near Sunset Hills MO, are totally different one container to the next and depend upon whether or not the refrigerant in question is flammable.  “Recommended practices for recycling containers for flammable refrigerants are different from those for non-flammable refrigerants, in that it involves using a non-sparking pick to prepare the container for recycling. As with all AHRI standards and guidelines, Guideline Q is free to download from AHRI’s website.”

Remote Condenser Ice Machines

iceThere really is so much to consider when discussing commercial ice machines.  For this reason, we have taken out time to discuss every detail surrounding the configuration choices, ice shape and style choices and condenser types up to this point, on behalf of your St Louis Heating Installation Company near Fenton MO.  The one style condenser we didn’t discuss in the previous post, because we ran short on space and time, was the remote condenser.  Here are some of the facts that we uncovered on these types of ice machine condensers, “With remote condenser ice machines, the condenser is air cooled, and mounted outdoors, usually on a roof.  Refrigerant lines run between the condenser and the machine. As a result, a remote condensing ice machine will be much quieter than its air or water-cooled counterparts.”

You may be asking yourself now, why wouldn’t you go for the remote variety when shopping with your Heating Repair in St Louis near Fenton?  Well, the install and maintenance of a remote condenser style commercial ice machine can be a lot more expensive given the complexity versus one that is not remote.  “However, installation and maintenance of a remote setup can be much more costly, and a remote condenser ice machine is usually only chosen if conditions prohibit the use of an air cooled or water cooled unit.”

So, the quiet part is really just a side benefit to a system that is not preferred, but rather sometimes required, as we found in our research on behalf of your Commercial Heating and Cooling in St Louis near Fenton.  There is also ice machine sizing to continue before purchasing your next commercial ice maker or ice machine.  We talked about how the three configuration choices come in mostly standard width sizes, but they do vary and you will need to possible pick your configuration based on your space as well.  Please check out our next post here to find out more about the sizing aspect of your commercial ice machine purchase.

Moving Air from a Cooler Area to a Warmer One

fan blowing hairHere at your American Services St Louis we wish to educate you about the world of heating and cooling, as well as things in the industry that seem just plain interesting.  Today we highlight the heat pump and how it can indeed work to warm your home or office.  Many people are confused as to how something that moves heat can actually work to heat a space.

It works in the same was refrigeration works.  It moves heat from a cooler area to a warmer area.  So the cool air that is outside is able to warm something up and that is the part that many folks get stumped by when talking about heating and cooling via a heat pump.  In my research done for Bridgeton Heating Installation, I found one writer who makes sense of the subject when he says the following, “My guess is that we have blinders here because of our personal experience with cold outdoor temperatures. When we go outside in winter, our bodies have a much higher temperature, being at about 98.6°F, and we experience cooling. We personally always are cooled off by cold outdoor air, so it’s hard to imagine that that same air could ever heat anything else up.”

The refrigerant in a heat pump will put the air that is cold, in contact with air that is colder, this will create the temperature difference you need to get the heat flowing.  The refrigeration cycle, which you much understand in order to get the heat pump operation, has four basic steps.  The expansion valve is the most important really, it accomplishes the most important thing whether you are dealing in refrigeration, heat pump, or AC, it helps you to achieve a low temperature. Stay tuned to more information on how exactly the expansion valve works and more details to be shared regarding the heat pump and how it works in my next several heating and cooling articles from American Services.