To identify the best central air conditioning systems, you have to do more than rely on the word of the seller. A heating and cooling company is like any other company: it's in business to make money and will present you with the best case scenario for all of its products, even when some of those products represent a "good" choice and not the very best choice for your situation. In general, the best central air conditioning systems are those that operate on minimal electricity to keep your electric bills as low, offer dependable performance for their projected lifespan when properly maintained, operate quietly and require minimal servicing throughout their life span. To evaluate particular air conditioning systems by these criteria, researching professional and customer reviews is an excellent resource. But before you decide to buy an air-conditioner, you'll need to answer two questions concerning your particular needs and wants.
What Unit is the Right Size?
While an air conditioner that's too small won't be able to keep your home as cool as it should be, buying an air conditioner that's too large will turn on and off more frequently without providing a higher level of cooling. In addition to amounting to wasted money in term of equipment cost, a system that's too large can also saddle you with significantly higher electric bills, as well as decrease the lifespan of the air conditioner due to the extra strain that results form its turning on and off so frequently. To determine the right size air-conditioner for your home, it's best to have an HVAC contractor conduct a thorough study of your cooling requirements, which will depend on such factors as window dimensions and exposure, square footage, your house's landscape orientation, the presence of direct shade, local climate and insulation. When the technician finishes his investigation, he'll identify what size air-conditioner you need in terms of Btu/h or tons. Btu/h stands for British thermal units of heat removed per hour and one ton is equal to 12,000 Btu/h.
Is Energy efficiency an Option?
Air conditioner manufacturers are required by law to rate their air conditioning equipment in terms of energy efficiency, which is known as a Seasonal Energy Efficiency Rating (SEER). The higher an air conditioner's SEER rating the greater its energy efficiency. In most cases, new homes are built according to a standard builder's model. But when it comes time to replace your air conditioner, moving to a more energy efficient model is always a plus. Energy efficiency air conditioning is an option for every home, and while air conditioners with the highest SEER ratings can cost more than lower rated air conditioners upfront, they typically more than make up for your initial investment by offering you significantly reduced electric bills over the course of their lifespan.
To identify the [http://www.bardi.com]best central air conditioning systems for your home, you need to find out the right size of air conditioner for your home and how much you care about reducing your electric bill by implementing an energy efficient air conditioner. At my [http://www.bardi.com]HVAC company, we typically advise customers to implement energy efficient units due to the significant savings that they offer over the course of their lifespan.
Article Source: [http://EzineArticles.com/?How-to-Identify-the-Best-Central-Air-Conditioning-Systems&id=3892526] How to Identify the Best Central Air Conditioning Systems
Wednesday, May 5, 2010
Wednesday, April 14, 2010
Residential Heating & Air Service & Repair
If your heating and air conditioning have been neglected in the past, now is the time to fix it. There are wide varieties of residential air conditioning and heating services for which to choose. Here are some options you have when calling the professionals out for a visit to your property.Everyone is looking to save money when possible. A great solution to that is getting an energy saving central cooling system in your home. Now not only can you save money by using less energy, but you can rest assured that your unit is working properly when you get your unit serviced. Without having your system checked out, you may have never known about that duct leak that caused your electric bill to be more than it is.
Some services you might be interested in are expert troubleshooting and diagnosis on your HVAC unit. It is recommended to have an EPA registered and certified technician over to do the job. They are equipped with the knowledge and tools to provide preventative maintenance, service and replacement for all cooling and heating systems.
For residential air conditioning and heating services and repair you can do all sorts of things from violation corrections to carbon monoxide detection. A professional can provide expert troubleshooting and diagnosis for both warm air and hydronic (hot water and stream) systems.
It is recommended that everyone has their residential air conditioning and heating system serviced and repaired. Not only do they keep your system working properly, but they save you money on your monthly electricity bill.
Article Source: [http://EzineArticles.com/?Residential-Heating-and-Air-Service-and-Repair&id=3905455] Residential Heating and Air Service and Repair
Friday, February 26, 2010
Essential Guide To Air Conditioning - Understanding Control Systems (HVAC)
People often talk about getting some form of temperature control included with their reverse cycle ducted air conditioning system. So what are the different forms of air conditioning temperature control and how do they work? We will look at the common types of air conditioning temperature control systems and how they work below.
Basic Air Conditioning Controller
The basic controller that comes with your reverse cycle air conditioning system comes with a thermostat that reads the air conditioners temperature. Usually this temperature is read either from the controller itself or more commonly inside the return air box of the unit that sits inside the roof space.If the temperature is read inside the return air box, it is sometimes not an accurate representation of the temperature in the room. The room itself may be quite cold but by the time the air is recirculated to the return air box it may have warmed up significantly which means the air conditioner will keep running (e.g. the controller in the living room is set to 22 degrees but once the air reaches the return air box it has heated back up to 30 degrees, which in turn causes the air conditioner to keep running).In this situation, the unit will keep running even though people are becoming cold. There are however two options to counteract this. Firstly, increasing the temperature of the controls will cause the unit to cycle off quicker. It needs to be remembered that the temperature set on the controller is usually not accurate, instead it works as a scale (i.e. if you set to 22 degrees, it does not necessarily mean the room will cool to 22 degrees).Secondly, some people put a ducted fixed constant in their hallway near the return air grille. This constant as it name suggests is always on. This allows the conditioned air to return easily back up to the return air box of the unit, which helps the unit cycle off. In this instance if you were running just your bedrooms that were all a long way from the return air, the air from the rooms would heat up too much before getting back to the return air. The fixed constant however would bleed air directly back into the grille which will make the unit cycle off and ultimately save you money in running costs.
VAV Air Conditioning Controller
VAV stands for Variable Air Volume system. This is where the zone motors for your reverse cycle ducted air conditioning system allow some temperature control to the rooms you are in.A zone is basically a series of blades that close the ductwork if you want to stop the air to a room. For instance, if you turn off your bedroom, the blades close restricting the air flow from proceeding down the ductwork and into your bedroom. Likewise, when you want air, the blades fully open and air starts to flow out the diffuser and into your room.VAV systems work differently however. Instead of the blades simply opening or closing, they can constantly adjust what percentage they are open. This constant adjustment lets you control the amount of airflow you get into a room which ultimately controls the temperature of the room.For example, if your room is around 30 degrees and you set your VAV controller (located in the actual room) to 22 degrees, the air would rush in trying to cool the room. Once the temperature in the room got to around 22 degrees, the blades will start to close to restrict the airflow to maintain that temperature. As soon as the room temperature starts to increase above 22 degrees, the blades will open again to let more airflow in to bring it back to the 22 degrees. By doing this the VAV system can maintain the temperature in a room.The VAV system is one of the most basic forms of air conditioning temperature control. It is a cheap way to add temperature control to just a few rooms (say your master bedroom, office and living room for instance).This system is not to be confused with VRV. VRV air conditioning systems use multiple wall splits (head units) running of a single large outdoor compressor.
Full Air Conditioning Temperature Control
Fully ducted temperature control works the same way as the VAV system outlined above. A controller is located in each room and the temperature is read, whereby the blades open or close to allow the correct airflow to heat or cool the room.The difference between full temperature control is obviously that the whole house is run by temperature control instead of just a few rooms. Because of this, the full temperature controlled air conditioning system will give you the most comfort as individuals would be able to set their own desired temperatures in their own living areas.These temperature controlled air conditioning systems are also more economical and cheaper to run than standard systems due to the energy savings they have. This is because once the rooms reach temperature, they can easily switch off which allows the unit to cycle off which ultimately saves the owner in running costs.Why Choose A Temperature Control Air Conditioning System?Air conditioning temperature control basically allows each user to set their desired temperature. People are all different and often want different temperatures in their living environment. There our other factors also help determine the temperature a room needs to be such as heat load from devices and people, what clothes the individual is wearing and what side of the house the sun is on. Temperature control systems however overcome these problems by giving each individual control over their own environment.One thing however these systems can't do is perform separate cooling/heating operations. If the air conditioning unit is set to cooling, it can only cool rooms. If someone wants heating in one room and someone else wants cooling in another room the air conditioner will not be able to produce this.I hope this answers some of your questions in regards to temperature control systems in reverse cycle (refrigerative) air conditioning systems. For more advice, speak to the manufacturer and ask as many questions as you can.
Article Source: http://www.articlesbase.com/home-improvement-articles/essential-guide-to-air-conditioning-understanding-control-systems-hvac-949894.html
About the AuthorMore great air conditioning tips and advice is available at our site. Please visit us for more information on hvac, air conditioning brands and much more.
Basic Air Conditioning Controller
The basic controller that comes with your reverse cycle air conditioning system comes with a thermostat that reads the air conditioners temperature. Usually this temperature is read either from the controller itself or more commonly inside the return air box of the unit that sits inside the roof space.If the temperature is read inside the return air box, it is sometimes not an accurate representation of the temperature in the room. The room itself may be quite cold but by the time the air is recirculated to the return air box it may have warmed up significantly which means the air conditioner will keep running (e.g. the controller in the living room is set to 22 degrees but once the air reaches the return air box it has heated back up to 30 degrees, which in turn causes the air conditioner to keep running).In this situation, the unit will keep running even though people are becoming cold. There are however two options to counteract this. Firstly, increasing the temperature of the controls will cause the unit to cycle off quicker. It needs to be remembered that the temperature set on the controller is usually not accurate, instead it works as a scale (i.e. if you set to 22 degrees, it does not necessarily mean the room will cool to 22 degrees).Secondly, some people put a ducted fixed constant in their hallway near the return air grille. This constant as it name suggests is always on. This allows the conditioned air to return easily back up to the return air box of the unit, which helps the unit cycle off. In this instance if you were running just your bedrooms that were all a long way from the return air, the air from the rooms would heat up too much before getting back to the return air. The fixed constant however would bleed air directly back into the grille which will make the unit cycle off and ultimately save you money in running costs.
VAV Air Conditioning Controller
VAV stands for Variable Air Volume system. This is where the zone motors for your reverse cycle ducted air conditioning system allow some temperature control to the rooms you are in.A zone is basically a series of blades that close the ductwork if you want to stop the air to a room. For instance, if you turn off your bedroom, the blades close restricting the air flow from proceeding down the ductwork and into your bedroom. Likewise, when you want air, the blades fully open and air starts to flow out the diffuser and into your room.VAV systems work differently however. Instead of the blades simply opening or closing, they can constantly adjust what percentage they are open. This constant adjustment lets you control the amount of airflow you get into a room which ultimately controls the temperature of the room.For example, if your room is around 30 degrees and you set your VAV controller (located in the actual room) to 22 degrees, the air would rush in trying to cool the room. Once the temperature in the room got to around 22 degrees, the blades will start to close to restrict the airflow to maintain that temperature. As soon as the room temperature starts to increase above 22 degrees, the blades will open again to let more airflow in to bring it back to the 22 degrees. By doing this the VAV system can maintain the temperature in a room.The VAV system is one of the most basic forms of air conditioning temperature control. It is a cheap way to add temperature control to just a few rooms (say your master bedroom, office and living room for instance).This system is not to be confused with VRV. VRV air conditioning systems use multiple wall splits (head units) running of a single large outdoor compressor.
Full Air Conditioning Temperature Control
Fully ducted temperature control works the same way as the VAV system outlined above. A controller is located in each room and the temperature is read, whereby the blades open or close to allow the correct airflow to heat or cool the room.The difference between full temperature control is obviously that the whole house is run by temperature control instead of just a few rooms. Because of this, the full temperature controlled air conditioning system will give you the most comfort as individuals would be able to set their own desired temperatures in their own living areas.These temperature controlled air conditioning systems are also more economical and cheaper to run than standard systems due to the energy savings they have. This is because once the rooms reach temperature, they can easily switch off which allows the unit to cycle off which ultimately saves the owner in running costs.Why Choose A Temperature Control Air Conditioning System?Air conditioning temperature control basically allows each user to set their desired temperature. People are all different and often want different temperatures in their living environment. There our other factors also help determine the temperature a room needs to be such as heat load from devices and people, what clothes the individual is wearing and what side of the house the sun is on. Temperature control systems however overcome these problems by giving each individual control over their own environment.One thing however these systems can't do is perform separate cooling/heating operations. If the air conditioning unit is set to cooling, it can only cool rooms. If someone wants heating in one room and someone else wants cooling in another room the air conditioner will not be able to produce this.I hope this answers some of your questions in regards to temperature control systems in reverse cycle (refrigerative) air conditioning systems. For more advice, speak to the manufacturer and ask as many questions as you can.
Article Source: http://www.articlesbase.com/home-improvement-articles/essential-guide-to-air-conditioning-understanding-control-systems-hvac-949894.html
About the AuthorMore great air conditioning tips and advice is available at our site. Please visit us for more information on hvac, air conditioning brands and much more.
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