Thoughts and ideas from one of the best area home inspectors in the Bloomington Normal area.
Posts tagged air
Trouble Shooting Air Conditioners
Trouble Shooting Air Conditioners
By Terry Manlick
Before you call a air conditioning service repair man to check your air conditioner that?s not cooling you may want to check some of these possible causes. First and most obvious is to be sure your system air filter is not restricted. In many cases this will cause your evaporator or indoor coil to freeze up. If the system has a fan v-belt make sure it is not cracked broke or slipping. If the evaporator coil is froze up you may notice condensate leaking in and around the furnace, air handler or window type A/C unit. Another more apparent sign would be actually seeing ice build up on the coil or refrigeration lines connecting the evaporator and condenser.
Another cause for your system freezing up could be closed or blocked supply registers. In some cases people will close registers to unoccupied areas of their home for energy savings but closing to many can cause more problems than it?s worth. System freeze ups can also be related to a lose of refrigerant with in your air conditioner. If your system is low on refrigerant you will have to have a qualified air conditioning repair technician locate and repair the leak as well as properly recharge the system. Any time your air conditioner system is froze up you should place the thermostats fan switch to the on position and the cool system switch to off for a long enough time to allow the coils to completely thaw. After checking some or all of the potential problems you can try to run the air conditioner again. If you have air blowing out of your supply registers but it?s not cool you will want to check the condenser or out door unit to be sure it is running. If you do not hear anything running check the breaker or disconnect switch at the condenser. Their may also be bad fuses in the disconnect box. Tripped breakers or blow fused are typically caused by problems that need to be addressed by a technician . It is possible that a power surge or electrical storm could also cause a breaker to trip and once you reset it the system will be fine. Another common cause for the condenser not functioning is a broken or shorted low voltage wire. Mice and other rodents will tend to chew though these wires. The low voltage wire is typically a small two conductor wire that runs along side the refrigerant lines. If the condenser is running but not cooling you may want to clean it. This can be done by turning off power to it, then wet it down with a garden hose. Apply a air conditioning coil cleaning solvent to the coil surface. Convenient aerosol spray cans or mixable powder form can be purchased online at HVAC Maintenance & Supplies.
(www.mainsupplies.com) Allow the coil to soak for 3-5 minutes then flush out with a garden hose. Be sure the water pressure is not so high that it damages the coil fins. A coil fin tool, also available online at HVAC Maintenance & Supplies can be used to straighten the fins. Repeat this process until the water starts to flush out relatively clear. Safety glasses and rubber gloves should be worn when using coil cleaning chemicals. If your air conditioner is a portable window type you can carefully remove the units outer casing, apply coil cleaner to both evaporator and condenser coils then flush with water. Most dirt will build up on the inside of the condenser coil that can not be seen with out removing the units outer casing. These tips may not resolve all your air conditioning problems but I can tell you that as a service technician myself these are some of the most common problems I have encountered.
Information provided by Terry Manlick with HVAC Maintenance & Supplies. Other maintenance articles as well as hvac maintenance products such as filters, v-belts, humidifier filters and coil cleaners can be found online at http://www.mainsupplies.com
Article Source: http://EzineArticles.com/?expert=Terry_Manlick
All About Air Conditioner Coils
All About Air Conditioner Coils
By Clyde Lee Dennis
Since the majority of your energy budget is spent heating and cooling your home for the most efficient operation one should always make sure your air conditioner coils are clean. One of the major problems and hindrances to this is that the heater coil and air conditioner coils are near each other. By maintaining your heating and cooling systems you can save money and enjoy comfort year-round. Doing this in conjunction with selecting an air conditioner with a high Energy Efficiency Rating (EER) will enable you to cut your cooling costs down significantly. You should also definitely check your filter at the beginning of the cooling season.
Briefly, and in one illustrative embodiment, a cooling unit is activated to satisfy the sensible cooling demands of the inside space, and if after the sensible cooling demands have been satisfied, and it is determined that the latent cooling demands have not yet been met, both a cooling unit and a heating unit are activated to help provide additional latent cooling to the inside space.
When an air conditioner is operating at steady state, the air conditioner coils are sufficiently cool to cause water condensation, thus removing water from the air and reducing the humidity of the air and the inside space.
As is conventional in many HVAC systems, the cooling unit and the heating unit are sized to cool and heat the inside space, respectively, under expected worst case conditions, and operate in either a relatively constant ?on? state or an ?off? state, as desired.
When so provided, the cooling unit and the heating unit may not be precisely matched in output capacity, and thus when both are activated, the sensible cooling/heating of the inside space may be effected at least to some degree.
In an HVAC system having a heating unit sized to heat an inside space under an expected heating load and a cooling unit sized to cool the inside space under an expected cooling load, the improvement comprising: a controller adapted to determine whether the space is above a predetermined humidity threshold; and if so, operating both the heating unit and the cooling unit.
Here’s how to troubleshoot a frozen air conditioner or evaporator coil. The following reference material can save you time and money. Conduct the following steps, before you contact a service technician – http://www.hvacpartsoutlet.com
Article Source: http://EzineArticles.com/?expert=Clyde_Lee_Dennis
HVAC – Heating, Ventilating and Air Conditioning
HVAC – Heating, Ventilating and Air Conditioning
By Sam Greyhawk
While it is a term commonly used by contractors and home improvement hobbyist, not everyone knows what HVAC means. HVAC is actually an acronym that stands for “heating, ventilating, and air conditioning.” (Yes – it is also an acronym for “high-voltage alternating current” but thats another article.)
Sometimes referred to as “climate control,” an HVAC system is integral in office buildings and commercial buildings. HVAC systems are extremely common in US homes and that trend is only rising. Depending upon where you live in the US you may “not be able to live without” your AC.
So what does an HVAC system do? An HVAC system is designed with the two following major goals:
- Providing and maintaining “thermal comfort”
- Maintaining acceptable indoor air quality
These goals are often compromised relative to the underlying manufacturer goal of maintaining reasonable installation, operation, and maintenance costs.
Many people don’t realize that depending where they live either their cooling system or their heating system (both parts of their HVAC) will be the biggest energy guzzler in their homes. To reduce to energy use and thus operational expense of either device energy efficiency is the key. Many recent technological advances have allowed to improve the efficiency of HVAC systems.
Energy Efficiency and Heating
Thanks to technologies like water heating, geothermal heating and zoned heating – heating systems are in general becoming much more energy efficient. In some cases today’s forced air systems can even double for air conditioning systems.
Energy Efficiency and Cooling
Thanks to SEER it’s now becoming easier and easier to purchase efficient cooling systems as well. In the USA it’s rare to see systems rated below SEER 9 because of the benefits of energy efficiency. Major energy savings can be obtained from more energy efficient systems. Here is an example:
- Upgrading from SEER 9 to SEER 13, the power consumption is reduced by 30% (equal to 1 – 9/13). It is claimed that this can result in an energy savings valued at up to US $300 per year depending on the usage rate and the cost of electricity.
Replacing an existing HVAC system can be a very costly proposition. So many companies are now working on technologies to improve the efficiency of existing HVAC systems.
An example of this type of add-on technology is: Cool-N-Save(tm). The Cool-N-Save(tm) is an “Air Conditioner Pre-Cooling System” that works in concert with your existing HVAC system. The Cool-N-Save(tm) system uses purified water vapor to create a “chill zone” surrounding your AC unit. This “chill zone” can reduce the ambient temperature by as much as 30 degrees. By reducing the ambient temperature around your air conditioner, the Cool-N-Save(tm) device reduces the power your AC unit draws. This in turn reduces your monthly electric bill.
The Cool-N-Save(tm) gives consumers a simple and cost effective alternative to replacing your entire HVAC or AC system. According to an independent study performed by Tulane University the Cool-N-Save(tm) system can improve the efficiency of your AC by up to 30%.
As more and more companies focus on ways to improve efficiency in existing technologies more and more devices like Cool-N-Save(tm) will become available and affordable for the average consumer.
Sam Greyhawk is an energy efficiency evangelist who works for Cool-N-Save(tm) in Huntington Beach, California. If you want to reduce your monthly electric bill remember Cool-N-Save(tm)
Article Source: http://EzineArticles.com/?expert=Sam_Greyhawk
Home Inspection – Heating and Air Conditioning
Home Inspection – Heating and Air Conditioning
By M Siddique?
M Siddique
Level: Platinum
Siddique, President of Butterfly Lister, effectively helps Home Sellers: We can buy your home at full price Home Buyers: No Credit, No Problem, we can help …
When are examining the issues of home inspection, we can’t think of anything more compelling than the fire hazards. However, the area that brings the most dread is that of the home inspection and the HVAC. This is an abbreviation for: Heating Ventilation and Air-Conditioning. The acronym may be strange to you if you are new to home inspections. You can trust us, the home inspector knows these systems are capital intensive (read: very expensive).
Of course each situation is a bit different, and there are things you can do to help an older system get along a little bit longer. Tcat has spent many a decade in generally milder climates than Gudrun. Given that, he is a big fan of the attic fan. (No pun intended).
An attic fan can give the HVAC system considerably less work to do on a warm summer day. And yes an attic fan can be of great help even in the wintertime. Consider the wet winters of the Pacific Northwest. The infamous dampness can contribute to wood rot. Even much of California can have a mold problem in the winter. An attic fan can reduce the trapped moisture just by moving some air through. And since the fan has no compressor or heating element, actual operational costs are very low.
This is not to say that a simple attic fan is a panacea. Yes it can lower operational costs for the air-conditioning and reduce the possibility of mold or rot issues. However, if the installation in the attic is sub par or deteriorated, a home inspector will be able to tell quickly by simply turning the attic fan on and looking for drafts around wall outlets and light switches.
So let’s say, the home inspector report says the HVAC system is toast. No matter how you slice it, this is going to hurt. Gudrun has some suggestions on how to reduce the pain: First, she would like to point out an Energy Star furnace over 10 years can save approximately $2000 USD in fuel costs, with an energy conversion rate of 90% or higher. And an Energy Star HVAC system is good for the air you breathe too. So the EPA is happy because your system is creating less pollution, while using less energy. It was important enough to the feds to create a federal tax credit for energy efficiency.
If you recently did an HVAC upgrade, you may want to look up IRS Notice 2006-26. Neither of us is quite sure what new plans are in place for tax credits and energy efficiency. Were both very clear both the federal and state level a variety of proposals to promote energy efficiency are being crafted by the lawmakers.
Yeah, we get it. Being told by the home inspector big bucks got to get plunked down to replace an ancient HVAC system is going to hurt. And between the savings on the ever rising cost of energy, combined with possible tax credits, well it could lead to that situation known as, a blessing in disguise.
Come on! It’s dark, stuffy and hot inside this little box of electronics. Not only that, we cannot hear you when you talk to us. Send us an e-mail to tell us what topics you would like to hear about. Feedback@ButterflyLister.com
Siddique is real estate investor for over 22 years and President of ButterFlyLister. This article first appeared on http://www.butterflylister.com – a leading real estate website with a comprehensive property listings with owner financing and lease to purchase options. Now Sellers can sell their homes at full price in any market. Launched in 2007, ButterFlyLister now offers Home Listing service throughout the united States for buyers and sellers. ButterFlyLister attracts thousands of buyers, sellers and real estate investors a month. Download Free How to sell your Home for Full Price in any market.
Article Source: http://EzineArticles.com/?expert=M_Siddique
Home Central Air Conditioning
Home Central Air Conditioning
By Steve Knowles?
So you have decided to buy central air conditioning.
Almost eighty percent of the new U.S. houses are installing central air conditioning units while construction. While it may not have been necessary to have air conditioning several decades ago, it is quite uncomfortable not to have it now. But those having existing homes do not need to worry, as the central air conditioning units can even be set up in houses that have already been constructed!
If you are looking for the best central air conditioning unit, you need to keep certain points in mind.
The best way and most important thing when buying central air conditioning equipment is to have it installed by a qualified contractor.
When one talks about saving money through efficient air conditioning systems the topic of SEER usually comes up. SEER or seasonal energy efficiency ratio, rates the central air conditioning unit. You can actually save quite a lot in your electricity bills if you substitute your old and ineffective air conditioner with a new SEER rated central air conditioning set up. Heating, ventilation and air-conditioning (HVAC) manufacturers are responding to the challenges of increased energy costs by offering homeowners air-conditioning units that deliver new energy efficiency standards and reduce your energy usage.
Always consult a specialist engineering company, who will specify, design and install the correct air conditioning system for your needs. There are many reputable contractors specializing in the installation of air conditioning systems for both small and large homes. Large houses usually require a centralized air conditioning system and its installation is more complicated and labor intensive. There are various kinds of air conditioning systems depending on your needs, your home size and your budget.
Choosing Your Air Conditioner And Installer
There are a number of reasons why you should go for central air conditioning.
It is the most effective way of heating and cooling the entire home because it can supply the conditioned air directly to the rooms whether the internal doors are open or closed. Having said that, which brand or manufacturer should you consider? Good question, but in reality it depends on your budget and your expectations. It would be recommended that you retrieve at least 3 quotes from reputable businesses (not outlets like Home Depot) which specialize in air conditioning supply and installation.
These companies will have ties to certain manufacturers and as a result will push a brand they will make more money from. But if you are aware beforehand which brands you are interested in you will be more assured of getting a good deal on a system you have chosen not what they want you to have.
The back yard is the most common place to find a central air conditioning unit condenser unit (outdoor section). This information is important because a house’s structure, window area, sun exposure, and climate will affect your central air conditioning needs. Again this is where you need specialist guidance from experienced installers. Make sure they look all over your home checking each room you want diffusers (ceiling outlets) in and note whether they check out the ceiling space, this small check is important as seasoned quoters / installers with experience will tell you that some ceiling spaces do not accommodate the ducting very well and can cause all sorts of difficulties during installation, you do not want the installer cutting corners (so to speak) trying to fit ductwork.
The electrical load on your home will be increased dramatically as a central A/C system is a large electrical user, some homes cannot accommodate this requirement and therefore need to have their mains upgraded. This can significantly increase the installation cost.
Maintenance Of Your Air Conditioning System
For your home central air conditioning system to last as long as possible, proper maintenance is a must. You probably recognize – as most homeowners do – that keeping your heating and air conditioning units running well is important. We tend to take our air conditioning for granted, and wonder how we ever got along without it, but we rarely check the system until it begins to blow out hot air.
Proper care of your air conditioning system like scheduled cleaning will also make it more efficient for a long time. If you have central air conditioning, it is important to keep the outside compressor compartment (condenser) as clean as possible. And of course the indoor return air filter must be kept clean also to improve the air flow throughout the home. There are not really many things the homeowner must do to keep their A/C happy other than cleaning and keeping the outdoor condenser free from debris and plant foliage.
If you do these you should receive many years of faithful service from your new central air conditioning system.
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You are invited to review further information about central air conditioning at our web site. There you will find other sources that delve much deeper into home air conditioning and the things to watch out for and avoid. Article Source: http://EzineArticles.com/?expert=Steve_Knowles |
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Why Did My Air Conditioner Break Down?
Why Did My Air Conditioner Break Down?
By Christopher Whiteside
If your air conditioner has stopped working the two most likely culprits are usually a single defective part or lack of routine maintenance. Similar to your car, your air conditioner is a mechanical system and requires regular maintenance and service. How long would you expect your car to last if you never changed the oil? How long could it go if you never rotated the tires or checked the brakes? The same thing can be said about one of the most important pieces of equipment in your life, your air conditioner. Without a routine maintenance program, our automobiles break down and so do our air conditioners.
Unfortunately, most of us get complacent when it comes to conditioning our living space. We do not want to think about air unless there is something wrong with it. We fall into the classic trap of out of site, out of mind. We may not even notice that our energy bills are climbing higher and higher every year. That is when the “hot summer” hits us the most. The utility bill doubles and we end up writing multiple large checks.
If your air conditioning system is over 10 years old, excessive energy consumption and frequent repairs are the trademarks of worn out system. Although many systems can function for many more years, a new high-efficiency system can save you time, money, and headaches. They may even pay for themselves by dramatically lowering your utility costs.
If your air conditioning system is under 10 years old a routine maintenance service is almost always the preferred choice. Many homeowners don’t know that they can significantly increase their air conditioning performance with annual or biennial check ups.
The most expensive option is the “if it ain’t broke don’t fix it” sentiment. Chances are that an old air conditioning system will fail when it’s working the hardest and you need it most. Contractors know this and adjust their prices accordingly. Not only are you waiting one to two weeks for an “emergency” install, prices increase 15-20% during peak months. The pressure on your wallet may be the least of your concerns. A damaged or defective air conditioning system can put you and your family at risk from a fire, biological, asbestos or other hazard.
Take a few moments and think about your air conditioning system. If it’s over 10 years old it’s probably time to start budgeting for a new high efficiency model. If it’s less than 10 years old, make sure your system is professionally maintained so you can keep your cool and your utility bills low.
Mr. Whiteside is a comfort advisor with http://www.ServiceExperts.com For more information about air filters, indoor air quality, air conditioning, heat pumps, or furnaces please visit http://www.FilterUpdates.com
Article Source: http://EzineArticles.com/?expert=Christopher_Whiteside
How To Stop Your Air Conditioner From Freezing Up
How To Stop Your Air Conditioner From Freezing Up
By Jerry Holt?
Scenario:
My air conditioner is freezing up almost daily. I’ve tried resetting the temperature and nothing seems to work. What would you suggest I to to stop my air conditioner from freezing?
Solution:
There are several factors that could be the cause. The four main reasons for air conditioner freeze ups:
Refrigerant charge
Outdoor temperature
Insufficient air flow
Defective blower
You may have a low refrigerant charge which can cause the air conditioner to freeze up. The system needs to be charged correctly to enable it to work properly. You may have a leak in the refrigerant lines.
If the lines have been vibrating or rubbing other parts or objects the friction could cause a leak. In addition if there are loose fittings or weak solder joints it could be leaking from those areas. If you’ve determined the refrigerant lines are not leaking than it may just need to be recharged. If you don’t know how to recharge it you may need to contact a service technician.
In temperatures under 60 degrees outdoor air conditioning units tend not to function as well. When the temperature drops the system begins to not function properly and freeze ups can occur. The simplest method is to not use your unit when the temperature cools down and open your windows or doors. If that’s not a option you will probably need to have a ambient temperature control installed in your system.
The evaporator coils will become dirty over time. A dirty filter restricts the air flow making it lose air flow and eventually it becomes so slow that it freezes up, or at best, not cooling as well as it should. This results in dirty coils that will need to be cleaned. Depending on your air conditioner you may have to remove the coils to clean them. You should replace the AC filter yearly. For central air conditioning units another problem that occurs is when you have duct work that is undersized causing the unit to freeze up. If you feel that may be the problem you’ll need to consult a professional. Try replacing the filter first and it may do the trick.
Air conditioner freeze ups can occur when the blower is not running at the required speed and may need to be replaced.
These are the main reasons why air conditioners freeze up. If you’re lucky it may just be a dirty filter which you should be able to replace yourself.
Jerry Holt is a freelance writer for the do it yourself home improvement website DIY Today where you can find tips and advice on air conditioning.
Article Source: http://EzineArticles.com/?expert=Jerry_Holt
Air Conditioning Testing
Air Conditioning Testing
By Michael Del Greco?
Many a home buyer bought a home without turning on the air conditioning and found out soon after buying the home there were problems with the system. While home inspectors do not perform complex calculations to determine if the size of an air conditioning is adequate you should ask the home inspector anyway. Even if your inspector does not do the math they can give you a rough idea of the size of the system and if it is big enough.
The simple way to test an air conditioning system to determine if it is functional is to wait for a 24 hour period when the exterior temperature is above 65 F degrees. Testing air conditioning units when it is much cooler out can either burn out the compressor as it tries to compress liquid refrigerant or yield a false result. If it cool out you can either require the owner to place money in escrow in case the unit does not work when you try it in the summer or you can hire an air conditioning service company to come out and test the equipment. They can connect pressure gauges to the equipment to determine if it is operational or not.
If the system is not producing a 15 to 20 degree difference between the air coming out the registers and that going back into the return the system is not functioning properly.
Contrary to what you may hear adding refrigerant to a system is not normal, it is a sign of a potentially serious leak that can be very expensive to cure
Michael Del Greco is President of Accurate Inspections, Inc., a home inspection business.
He has been a home inspector since 1993 and prior to that spent seven years as a construction project manager.
Article Source: http://EzineArticles.com/?expert=Michael_Del_Greco
Air Conditioner Tips – How To Reduce Air Conditioner Bills
Air Conditioner Tips – How To Reduce Air Conditioner Bills
By Cheow Yu Yuan?
Are you experiencing high air conditioner bills that are burning a deep hole in your household budget? Do you know that with a well-maintained air conditioning unit, you will be able to save 15% to 40% of the energy which will directly affect your bills?
To reduce your air conditioner bills, the best way is to have a well-maintained air conditioner unit. Although tasks like cleaning can be easily done by you, for more complicated technical tasks, it is best to leave the hard work to an air conditioner professional to have you fulfil it.
An air conditioning unit is more complex than what you think it might be. Any adjustments or repairs should always be done by professionals. In a unit, there are refrigerant gases, compressors, fans, fins, coils, electrical starters, thermostats, and so many more. It is just to overwhelming for you to do the task by yourself.
When you find that the bills are shooting really high for the past few months, it is time to ask for a servicing so as to make your unit more efficient and save energy. You can engage a professional service technician and he should be able to clean the evaporator and condenser coils, check refrigerant pressures, and adjust and lubricate moving parts. Sometime, there will not be enough refrigerant gas. In this case, the technician will also help you to top up the unit. A professional technician will be able to detect symptoms that can lead to energy wastage or inefficiencies, and rectify them.
One major culprit for tremendous energy wastage is that your unit does not have a damper or have a malfunctioning one. A damper is place in the duct of an air conditioner unit so as to prevent cool air from entering the furnace cabinet in summer, and warm air from escaping to the air conditioner unit in winter. If the technician finds that you have a damaged damper, he will help you to repair or replace it.
You might ask how often do you need to call a professional technician to check on your air conditioner unit. Actually, it really depends on how your unit cooling system operates. Different model of air conditioners unit will have different cooling operations. However, as a rule of thumb, the followings are a general interval guideline that you can take for reference:
1. Hot regions. If your unit operates for 8 or more months per year, you need to engage a professional once a year.
2. Warm regions. If your unit operates for 5 to 8 months per year, you need to engage a professional every 2 to 3 years.
3. Cold regions. If operating for less than 5 months every year, engage a professional every 3 to 5 years.
With a well-maintained and energy saving air conditioning unit, you will get to see a slide in your air conditioner bill.
To seek professional air conditioning services, visit the website below now:
Click Here: More air conditioning services and advices at http://www.EricoolAircon.com
Feel free to publish this article on your website, or send it to your friends, as long as you keep the resource box and the content of the article intact.
Article Source: http://EzineArticles.com/?expert=Cheow_Yu_Yuan
How A Room Air Conditioner Works
How A Room Air Conditioner Works
By Michael Russell?
The most common and cost efficient cooling device is the room air conditioner. This consists of indoor and outdoor portions. An air filter, a fan and a cooling coil are parts of the indoor portion. The warm, humid air is drawn through the filter and into the fan then blown over the cooling coil. The cooling coil then cools and humidifies the air before it is blown into the room. The cooling coil contains a refrigerant fluid, which changes its physical property from liquid to gas because heat from the warm air passing over the coil causes its evaporation. Heat from the warm and humid room air is taken through this process. The outdoor portion of the unit consists of a compressor, a fan and a condenser. The cooling coil gives off low-temperature and low-pressure refrigerant gas to the compressor. The compressor on the other hand delivers high-temperature and high-pressure refrigerant gas to the condenser. The fan blows outdoor air over the condenser. Inside the condenser the high temperature, high pressure refrigerant gas is converted to refrigerant liquid. Heat from the hotter refrigerant gas is taken by the cooler outdoor air passing over the condenser.
This process causes the refrigerant gas to change to the liquid state. The refrigerant fluid circulates through the closed path leading through the cooling coil, the compressor and the condenser in a constant motion. The relatively cool outdoor air is sucked by the fan for cooling the condenser and then blows the hotter air back outdoors. In a room air conditioner, electric motors drive the compressor and the two fans. 110-volt lines are used for smaller room air conditioning units while for larger units 220 volt line supplies are used. An entire small residence can be cooled by some room air conditioners with sufficient capacity.
Although a room air conditioner is the lowest-cost cooling device, it has its own disadvantages which include the following:
1. Most room units can provide only widely irregular room air temperature.
2. Most room air conditioners operate with noise.
3. It is difficult to obtain an even distribution of cool air.
Because of the known disadvantages of a room air conditioner many people prefer to use the more expensive central cooling system.
A central cooling system is commonly divided into two units: An indoor and an outdoor unit. A filter, a fan and a cooling coil constitute the indoor unit. The outdoor unit on the other hand consists of a compressor that is motor-driven, a fan for the condenser and a condenser. A cabinet mounted outdoors houses these components. Most home cooling systems provide humidity reduction but offer only very limited humidity control. The length of the compressor operation determines the moisture content reduction. For example, a low indoor humidity value of 40 percent is reached when the compressor operates continuously for several hours during a hot summer day, but as night time approaches and the compressor stops operating, the water drops on the cooling coil tend to evaporate and a jump in the indoor humidity occurs. This variable humidity and its limited control however, are acceptable to home owners who are using the central cooling system.
Michael Russell
Your Independent guide to Air Conditioning
Article Source: http://EzineArticles.com/?expert=Michael_Russell
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