Texas is offering new rebate incentives for purchasing a new home central air conditioning system, Shelton’s Pride will be providing information and discounts on all a/c system that qualify. http://www.seco.cpa.state.tx.us/arra/rebate/
Most people think if they leave there air conditioning on long enough it will cool down to any temperature like a freezer. That is no true. The average air conditioning system is designed to cool the structure 20 t0 25 degrees from the out side temperature. So if it is 100 degrees you will be lucky to get the inside temperature to 80 to 75 degrees. This also depends on the house envelope and the house insulation value. So if your house is old and has little insulation the hot weather is going to effect you most. See later for more information on this subject or respond via comment and I would be happy to answer any question you might have.
Air Conditioning repair problems are very common. The less a home owner has there a/c system checked and maintained, the more problems they will have. This speaks true if your system was installed incorrectly by a unqualifiedair conditioning contractor. The proper contractor should be equipped with tools to the job right. You would not believe on how many air conditioning contractors do not have the correct tools. They just sale you a magic box and install it and do not test it. The air conditioning contractor should be equipped with air balance tools (flow hoods, magnehelic gauge, hygrometer, velocity measuring tool, etc), they also should be performing some type of heat load calculation on your home. Other tools and procedures they should have and do are: micron gauge to evacuate the system properly, gauges to read pressures, clamp on temperature probes, air temperature probes, amp meter, rpm meter, etc.
When you decide to use a contractor it is good to ask them if they have these tools before letting them touch your air conditioning system. When installing your air conditioning system you need to make sure the air conditioning contractor test your system before and after the job so they can prove the system is operating correctly and efficiently. Air balance test and super heat subcool test are the main ones. This is just a little information to arm you with when choosing the right contractor. Go to www.sheltonspride.com to see more use full information.
Most likely you have not had an air conditioning duct system test by the right a/c contractor. This is very important, because the duct system is just as important as the air conditioning system. The two work together as a team if one is not designed or operating correctly. It can cause high energy bills, premature failure of your equipment, high humidity in home, dust or mold problems, and improper cooling capacities. For example: If your duct system is designed incorrectly, it can cause a 5 ton system to only operate at a 3 ton system due to the lack of delivery of the air, or if you have a 15 SEER system, it can cause your 15 SEER system to only operate at 10 SEER causing your energy bill to be sky high.
What is a proper duct system test?
The technician testing the duct system should be certified in air balance testing and static pressure testing preferably through National Comfort Institute. The technician should be equipped with a T.S.I. Flow hood, Static pressure gauge, and an anemometer. The tools will insure you that the technician is performing the test correctly. After test is complete you should receive a report stating the the measurements and recommendations to correct any problems. The average system installation is only performing at 60 % of its rated capacity. Study by N.C.I.