How Does Central Air Conditioning Work?
Posted by Tony in How Air Conditioner Units Work on July 30th, 2011
No doubt you are know that air conditioner units come in many forms, including portable air conditioners, dual hosed and single hosed units, heat and cool units, window and through the wall units, evaporative coolers and absorptive chillers. What we are looking at here is just another method, but how does central air conditioning work?
All primary home air conditioning systems tend to work on similar principals and central air conditioners are purpose built to cool the entire home. They use ducts to disperse and recycle cooled air throughout rooms on a continuous basis. Some models may also move chilled water via pipes and heat exchangers.
Frequently, you will find a split system where the condenser and compressor are located outdoors and connected by refrigerant lines to a coil (or evaporator) in the in the air handler unit. Such a unit basically resembles a metal box that may comprise of a blower, filters, heating/cooling elements, humidifier, mixing chamber, controls and vibration isolators. With a singular ‘packaged’ system, everything is normally located in a single outdoor unit.
In a split system, heat from the home is transferred to the outside using a compressor cycle that works similarly to a refrigerator. A refrigerant fluid is passed through an expansion device which changes from liquid to gas when it absorbs heat and is then released outdoors at high pressure as vapour before changing back from gas to liquid. The fluid will then return to the expansion device and the process repeated. The air in the home is cooled as it travels over the evaporator; the moisture removed from the air and disposed by the unit via the normal household drainage system.
Central air conditioning has a few benefits over other systems as the air is drawn through a filter. This filter extracts any dust and lint particles cleaning the air as well as cooling it. Additionally, specialist filters can also remove microscopic pollutants which can affect health. A further benefit is that noise is reduced as the unit is external to the building.
Central air conditioning is an efficient system but you do need to try and get the highest SEER rating you can afford (the range is 10 to 17). (SEER refers to the Seasonal Energy Efficiency Ratio.) If the unit carries the Energy Star label, it will have a SEER of at least 13 for a split system and 12 for a single unit.
Hope the above helps!
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An Introduction To Ductless Air Conditioners
Posted by tony in Other related posts on May 21st, 2010
An air conditioner, which is often called AC (in the United States and Canada), or an air-con (in Britain and Australia), is basically a device that uses a refrigeration system to drain out heat from a particular area. The HVAC is the complete unit, which has an all round mechanism for heating, ventilating and air conditioning. This type of air conditioning indeed comes with many benefits, but the problem is that it can stretch your utility bills, compel you to keep yourself indoors, cause a lot of noise and can even make you ill. Some troubles can also crop up if your air conditioner is not properly installed, or is not sufficiently maintained. The worst mistake that people make is to keep their doors and windows open while their air conditioner is on. Well, discarding your machine is no solution to these problems. Why don’t you try the latest cooling technology instead?
The Ductless Split Air Conditioners are just what you need to meet your cooling and heating problems.This unit has an evaporator, which can be put up indoors in an attractive space-economic cabinet. This evaporator has to be joined through refrigerant or coolant pipes, to an outdoor unit, technically called a condenser. The operation is as simple as the installation! No hazardous ductwork comes into the scene, and you can even save quite a lot of money on your electricity bills. This air conditioner is really space saving and so does not interfere with your interior designs. The indoor unit is particularly constructed to ensure a complete noise free cooling that does not compromise the energy efficiency. The rotary compressors produce the lowest amount of noise and guarantee a superb cooling at the same time!
Ductless air conditioners are the best option for those cases where ductwork becomes too costly, or is too problematic. The efficient indoor air handler and the outdoor condenser are matched perfectly to make installation really easy.
The Klimaire 12000 btuh 13 SEER mini split ductless a/c air conditioner & heat pump 115V / 60Hz with free installation kit
Quiet Dehumidifiers Do Exist!
Posted by Tony in Other related posts on September 18th, 2011
If you need the dehumidifier in your basement then how loud it runs will not bother you too much. But, if you need to run the dehumidifier in the rooms of your home where you spend family time you might want to shop around for quiet dehumidifiers.
If possible, choose a dehumidifier with multiple fan settings. This way you can run the dehumidifier on it’s lowest setting and it will be a little quieter than on the higher fan settings. They will use less electricity on these lower settings, too.
Make sure the quiet dehumidifiers you research, and ultimately buy, can be programmed by you to set the level of humidity you want in the rooms of your home. Some even will reset themselves to your pre-programmed settings even after the power goes out. This is an awesome feature. No muss, no fuss.
Portable dehumidifiers can easily be moved from room to room. Just do not try to move them with a full bucket or you will risk spilling the collected moisture.
Rule of thumb is that you want about a 50% humidity level in your home to be comfortable. You can set the dehumidifier to this level and in a couple of days that level should be achieved. Then the dehumidifier should cycle on and off to maintain that level.
Most dehumidifiers made today are equipped with an automatic shut off feature. This is essential if you are going to place your dehumidifier in a room with carpet or another type of flooring that should not get wet. When the collection chamber is full the unit will shut down until it is emptied.
Quiet dehumidifiers
If you have “gone green” you could probably use the water that is collected to water house plants or even your outside garden instead of pouring it down the drain. Use it to help fill up your rain barrel, or wash your car. Use your imagination, I am sure you could think of something to use the “free” water you get from your dehumidifier.
Keep your budget in mind. Dehumidifiers can cost from less than one hundred dollars to several thousand dollars, depending on the brand, model and size of the unit you want or need.
Just make sure that the dehumidifier you choose will handle the correct amount of square footage you need, too. If you move it from room to room the rooms need to be relatively the same amount of square footage to ensure proper dehumidification.
Anyone can get used to some noise in their homes, but if you don’t have to then why do it. Constant noise can be annoying to some people and cause an undo amount of stress on them. Buying quiet dehumidifiers will not only decrease the humidity of your home but your stress level as well.
