Posts tagged cooling system

Down the Halls of HVAC

hallsLooking at heating in St Louis near Sunset Hills, we realize that is has been some time since we perused the halls of an HVAC explanation, looking for new details to point out surrounding your system in St Louis.  So, today, we stumble upon the heat exchanger. “The heat exchanger is found inside your furnace unit’s housing. This component switches on when the furnace is activated by thermostat to produce warmer temperatures in winter.” The way it operates is to pull in cool air, then heat it and circulate it by way of your ducts and our through your vents.

The heat exchanger pulls in cool air, heats it, and circulates the resulting heated air via your ducts and out through the vents.  The evaporator coil is another important heating component to understand.  It has, basically, the opposite job of the heat exchanger and it acts to cool the air when the thermostat is set lower and cooler during the summer months.  “Located in a metal enclosure on the furnace’s exterior, to the top or side, the evaporator coil works similarly to an automobile radiator to produce cool air, which is then circulated through the ductwork.”

Now, we move onto the condensing unit of your heating and cooling system in St Louis near Sunset Hills.  Connected to the evaporator coil, the condensing unit is installed by HVAC contractors on the outside of your home and filled with refrigerant gas in order to properly operate. “When the refrigerant has been cooled to a liquid by heat exchange with the exterior air, the condensing unit pumps the liquid to the evaporator coil to be evaporated into a gas once more.”  This leads us to your refrigerant lines which carry the refrigerant substance to the condensing unit vaporized in the form of gas and return it to the evaporator coil in liquid form.  In order to be resistant to temperature, these lines are typically made of copper or aluminum.

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.”

 

Heating Elements in HVAC

heat exchangerLooking at heating in St Louis near Sunset Hills, we realize that is has been some time since we perused the halls of an HVAC explanation, looking for new details to point out surrounding your system in St Louis.  So, today, we stumble upon the heat exchanger. “The heat exchanger is found inside your furnace unit’s housing. This component switches on when the furnace is activated by thermostat to produce warmer temperatures in winter.” The way it operates is to pull in cool air, then heat it and circulate it by way of your ducts and our through your vents.

The heat exchanger pulls in cool air, heats it, and circulates the resulting heated air via your ducts and out through the vents.  The evaporator coil is another important heating component to understand.  It has, basically, the opposite job of the heat exchanger and it acts to cool the air when the thermostat is set lower and cooler during the summer months.  “Located in a metal enclosure on the furnace’s exterior, to the top or side, the evaporator coil works similarly to an automobile radiator to produce cool air, which is then circulated through the ductwork.”

Now, we move onto the condensing unit of your heating and cooling system in St Louis near Sunset Hills.  Connected to the evaporator coil, the condensing unit is installed by HVAC contractors on the outside of your home and filled with refrigerant gas in order to properly operate. “When the refrigerant has been cooled to a liquid by heat exchange with the exterior air, the condensing unit pumps the liquid to the evaporator coil to be evaporated into a gas once more.”  This leads us to your refrigerant lines which carry the refrigerant substance to the condensing unit vaporized in the form of gas and return it to the evaporator coil in liquid form.  In order to be resistant to temperature, these lines are typically made of copper or aluminum.

 

The Original Heating Installation Matter Down the Road

install of HVACTo clean or not to clean is the first question we delved into rather deeply in the previous handful of posts here, on behalf of your St Louis Cooling Service near Belleville IL.  We have determined that much of the answer lies in personal preference and mostly in individual heating and cooling system circumstances.  Let us assume that you do plan to pursue professional cleaning of your St Louis HVAC near Belleville IL.  “If you decide to have your heating and cooling system cleaned, it important to make sure the service provider agrees to clean all components of the system and is qualified to do so.”  We have found in our recent research that cleaning only some of the system is a waste of time as is replacing a full system without determining the source of the issue, assuming you are dealing with something bigger than dirt, such as unwanted creatures or mold.

In your heating and cooling system in St Louis, as it pertains to cleaning ducts, we find that this will refer to the cleaning of various heating and cooling system components of forced air systems, including the supply and return air ducts and registers, grilles and diffusers, heat exchangers heating and cooling coils, condensate drain pans (drip pans), fan motor and fan housing, and the air handling unit housing.

Also, sometimes the need for an HVAC clean lies in the inappropriate installation and maintenance of your heating and cooling system in St Louis near Belleville IL.  “If not properly installed, maintained and operated, these components may become contaminated with particles of dust, pollen or other debris. If moisture is present, the potential for microbiological growth (e.g., mold) is increased and spores from such growth may be released into the home’s living space.”  Therefore, often times the aftercare of your system is directly related to the quality of the installation of your HVAC in the first place.  Look for someone recommended and qualified, such as your St Louis Cooling Service and Sales near Belleville IL when it comes time to purchase and install the original system or address a replacement HVAC.

 

 

HVAC and Mold

HVACWriting today on behalf of your HVAC installation service in St Louis near Jefferson County, we run straight into the in depth subject that begins with a simple question, “Should I have my air ducts cleaned?”  Knowledge about air duct cleaning is actually in its early stages, so a blanket recommendation cannot be offered as to whether you should have your air ducts in your home cleaned, believe it or not. The U.S. Environmental Protection Agency (EPA) urges you to read this document in it’s entirety as it provides important information on the subject and all came from reputable sources online.

According to a recent article found online, “Duct cleaning has never been shown to actually prevent health problems. Neither do studies conclusively demonstrate that particle (e.g., dust) levels in homes increase because of dirty air ducts. This is because much of the dirt in air ducts adheres to duct surfaces and does not necessarily enter the living space. It is important to keep in mind that dirty air ducts are only one of many possible sources of particles that are present in homes. Pollutants that enter the home both from outdoors and indoor activities such as cooking, cleaning, smoking, or just moving around can cause greater exposure to contaminants than dirty air ducts.”  However, there are definitely times when having your St Louis HVAC near Jefferson County cleaned, is highly recommended.  These are specific circumstances that are listed below.

There is substantial visible mold growth inside hard surface (e.g., sheet metal) ducts or on other components of your heating and cooling system. There are several important points to understand concerning mold detection in heating and cooling systems, also, so we have relayed below, on behalf of your St Louis HVAC sales near Jefferson County, what we learned in our research therein.  Many sections of your heating and cooling system may not be accessible for a visible inspection, so ask the service provider to show you any mold they say exists.  It is also recommended that you are aware that although a substance may look like mold, a positive determination of whether it is mold or not can be made only by an expert and may require laboratory analysis for final confirmation.  For about $50, some microbiology laboratories can tell you whether a sample sent to them on a clear strip of sticky household tape is mold or simply a substance that resembles it.

High R-Value in Your Walk In Freezer

walk in freezerIn our adventures today in an effort to continue our discussions on walk-in freezers for your list of necessary restaurant equipment, we come upon the area of composition encircling the prefabricated walk-in cooler as opposed to the custom made version of these pieces of restaurant equipment in St Louis near St Charles MO.  “At their simplest, a prefabricated walk-in cooler is just a large insulated box with a cooling system. The components can be summed up in a very short list: panels, floor, door, and refrigeration system.”  Now it is time to go into further details about the above mentioned components.

Basically sandwiches made of foam insulation and thin metal sheets, panels range in size from 3 1/2″ – 5″ thick and their primary function is to keep the walk-in at the correct temperature for storing your fresh or frozen foods. They are generally made using a 24 to 26 gauge galvanized steel, aluminum or aluminum-coated steel, painted steel, or stainless steel that is called the skin of the freezer itself in the St Louis Restaurant Equipment world. In an effort to maintain a professional and perhaps commercial look, panels also often have embossed patterns in the metal. This pattern can actually add to its strength and reduce the notability of wear and tear.

“Pressed inside the skin is dense insulating foam to ensure energy efficiency. Some options come with extruded polystyrene foam insulation but the most common insulating material is foamed-in polyurethane.”  A high-performing insulator, extruded polystyrene has great moisture resistance. When researching the walk-in freezer options on behalf of your St Louis Restaurant Equipment Sales and Service near St Charles, we found it described as the best material to retain R-value.  “While most materials break down and lose R-value over time, polystyrene retains its insulating ability longer. Polyurethane is also a great insulator; however it may not stand the test of time as well as other materials.”  You are recommended to look for high quality insulation materials with low thermal transference and high R-value when seeking a walk in freezer to add to your list of restaurant equipment in St Louis.

Elaborating Further on Heat Pumps and Central AC

defineMoving onto the second phase of description we are planning on behalf of your St Louis Heating and Cooling installation near Fenton MO, we still have much to explain about your cooling system in your home.  Your air conditioner, to be precise, and though we told you the basics when it comes to the system and how it uses energy to remove actual heat from your space, unfortunately, it isn’t quite that simple.  The process gets quite a bit more complicated with all the controls and valves involved, its effect it rather amazing.  “An air conditioner takes heat from a cooler place and dumps it in a warmer place, seemingly working against the laws of physics. What drives the process, of course, is electricity — quite a lot of it, in fact.”

Our first type of cooling system to discuss, namely because it is the most common, are the central air conditioners and heat pumps designed to cool the entire house. “In each system, a large compressor unit located outside drives the process; an indoor coil filled with refrigerant cools air that is then distributed throughout the house via ducts.”  Heat pumps are then like central air conditioners with the exception of the cycle direction variations.   “Heat pumps are like central air conditioners, except that the cycle can be reversed and used for heating during the winter months.”  We will go into more details on behalf of your St Louis Heating and Cooling sales near Fenton, in regards to heat pumps below.

With a central air conditioner, the same duct system is used with a furnace for forced warm-air heating. In fact, the central air conditioner typically uses the furnace fan to distribute air to the ducts, so there is an overlap and therefore efficiency existent in the system by its simple nature.  Central air conditioners and air source heat pumps in their cooling mode of operation are rated according to their efficiency in the seasons.  We will break down these details in the next couple posts here, on behalf of your Heating sales in St Louis near Fenton MO.

Cooling Conjugations Begin

definitionIn the world of heating and cooling, we like to stay abreast of the latest news and information, but sometimes we need to remember to take a step back and offer some basics for those following on behalf of your Cooling Sales in St Louis near Maryland Heights MO.  After all, revisiting some of the basics can earn people’s interest for future discussions on the higher level technology and latest news.  If we don’t take the time, for example, to educate you on the different types of cooling on today’s market, then discussing the nitty gritty will likely go right over your head.  So, let us begin, today, with the different types of air conditioning.

We will begin with a basic, yet essential definition of cooling.  “Air conditioning, or cooling, is more complicated than heating. Instead of using energy to create heat, air conditioners use energy to take heat away. The most common air conditioning system uses a compressor cycle (similar to the one used by your refrigerator) to transfer heat from your house to the outdoors.”

If you imagine that your house is a refrigerator, then you can get a good idea for starters.  “Picture your house as a refrigerator. There is a compressor on the outside filled with a special fluid called a refrigerant. This fluid can change back and forth between liquid and gas. As it changes, it absorbs or releases heat, so it is used to ‘carry’ heat from one place to another, such as from the inside of the refrigerator to the outside.”  This is a rather simple way to begin in your line of thinking, but it is a bit more complex that that really.  If you follow this and the next several posts, we will attempt to dive into much more detail in an effort to explain the different St Louis Cooling systems near Maryland Heights MO.

Cooling Costs and Routine Maintenance Effects

hvac maintenanceIn sticking with our recent subject of HVAC upkeep as it relates to efficiency and overall heating and cooling system health, we are going to push forward, citing a handful of additional studies, and explaining in more detail all that it means to have a healthy HVAC system.  One particular study that we found on behalf of your St Louis Cooling Sales near Wentzville MO, had the following to offer, “The study included HVAC systems setpoints and schedules, economizer operation, ventilation controls and settings, and HVAC system efficiency and fan power (these last two variables were included as surrogates for adequate maintenance and balancing of the HVAC system).”

As a result of the above analysis, Portland Energy Conservation Inc. found that building operation and maintenance programs specifically designed to enhance the operating efficiency of HVAC and lighting systems decreased energy bills 5 to 20 percent in commercial buildings, without significant capital investment.  These findings are undeniable as energy efficiency and cost involved in heating and cooling are totally measurable, and therefore easy to study the effects had by maintenance on such results and numbers.

On behalf of your St Louis Cooling service near Wentzville MO, we bring you the conclusion that these results are real and the facts are of relative importance to anyone responsible for an HVAC system in St Louis or anywhere around the globe.  Another piece of supporting evidence is as follows:  The National Center for Energy Management and Building Technologies conducted 45 interviews with industry experts, and concluded that effective scheduled maintenance decreases energy bills 15 to 20 percent in commercial buildings.”  Found on behalf of your Heating and Cooling Maintenance near Wentzville, this tidbit reinforces that the facts are coming, not only from those in the energy realm, but also from the people in the trenches.  Take heart, if you want to fully optimize your savings and the effectiveness of your heating and cooling system in St Louis, call for routine maintenance and get on a regular schedule today.

Heating and Cooling Efficiency and Provable Facts

factsIn your St Louis Heating and Cooling systems near Belleville IL, whether they involve your office and industrial environments, or your everyday home unit and system, the importance of routine maintenance to these heating and cooling units cannot be denied.  Plenty of studies have been conducted and research proves that the neglected system is the inefficient system.  Also true is that the neglected system is the one more prone to breakdown and future need for repairs.

The above references heating and cooling studies have been cconducted and fall into two main categories:

– Analysis of failures in individual HVAC components and the energy savings possible by correcting those failures.

– Whole-system estimates based on interviews with HVAC maintenance experts. Energy Performance and HVAC Component Maintenance

One conclusion written by a testing group goes like this, “HVAC systems have over 100 components, and many common component performance issues degrade energy performance.” They provide results in the form of information that summarizes studies of the potential energy savings from good maintenance on chiller components with the greatest energy impacts.

There exists, also, a few studies in which the whole-building energy savings from HVAC system maintenance has been analyzed.   In each instance, the validity and importance of routine Heating and Cooling maintenance in St Louis near Belleville IL, has been confirmed.  Bigger buildings are covered in the work as well.  “The New Buildings Institute found that best practices in building maintenance and operations reduce energy use 10 to 20 percent across all climate zones in the United States. In contrast, poor maintenance practices can increase energy use by 30 to 60 percent.”  The list of citations and proof is rather in depth, but we will take pause there and just let the facts be known.  If optimum efficiency in an HVAC system is the desire, then routine maintenance is a must, not really an option, but a definite requirement.  To what extent it will save you money is not precisely known, but the fact that it will create a heating and cooling environment that runs at optimal efficiency is a provable fact.