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Air Conditioners Air Conditioners 1
| Air Conditioning 1 |
| Written by Richard |
High Performance HVAC Air Conditioning PageHVAC Air Conditioner Quickpage jump links:Maintenance, Service, and Repairs Preventive Maintenance & Repair Air Conditioning and Refrigeration Related Articles Air Conditioner Maintenance, Service, and RepairsGet 3 FREE air conditioning quotes from qualified contractors in 1 call. No matter what name brand (York, Trane, Carrier, Rheem) of air conditioning and/or heating unit you purchase some time or the other you will need to have that air conditioning and heating equipment checked for a problem and repaired. Even if you have regular air conditioning maintenance done. While there are air conditioning and heating manufacturers that engineer quality into their air conditioning and heating equipment, that equipment is prone to breakdown simply because it is a mechanical/electrical device and will need repair sometime throughout its useful life. Most of the time diagnosing problems is simple and other times it can be a complicated process where the HVAC technician calls in another HVAC technician or even an HVAC manufacturer representative. Residential and commercial heating and cooling is important and you want the best possible HVAC air conditioning and heating service. It does not matter whether you have a Carrier Air Conditioner, Trane Air Conditioners, or need a replacement whatever the manufactuer, it is best to get a qualified technician to look at your system before a decision is made to repair or replace the air conditioner or heat pump systems. Once a diagnosis is made to your air conditioning and/or heating system, the unit can be repaired, in most situations, with stock HVAC parts off the truck. Sometimes the HVAC part has to be ordered because it is a specialty part that only the HVAC manufacturer of your equipment can provide. If the part can be picked up locally then you can expect to pay for travel time to and from the HVAC parts dealer. It is practically impossible to carry every single HVACpart for every single HVAC breakdown that occurs. Finally, air conditioning and heating maintenance, provided on a regular schedule, can prevent many air conditioner or heater breakdowns thereby preventing the need for you to call an air conditioning and heating repair person for air conditioning and heating troubleshooting. Maintenance can save you lots of money in the long run but even so, problems can still occur. The cost of service varies widely from one region to the next so it is next to impossible to give you prices for air conditioning service. The best way to check prices is to shop around. Be aware though that sometimes the cheapest price for HVAC air conditioning and heating service and repair is not always the best way to go. Your main concern should be getting knowledgeable HVAC service technians, reliability, punctually, honesty, integrity, and guaranteed work.
Air Conditioning and heater service prices may seem high but if you consider the overhead involved in maintaining a service such as a heating and air conditioner company you will be surprised. Look at some of the things involved here and you will understand why service companies must charge a premium to stay in business. It costs approximately $35,000.00 to properly stock an HVAC air conditioning and heating service van (not mentioning the cost of the van itself), office overhead including marketing, phone, fax, business licenses, professional licenses, insurance, advertising, marketing, and did I mention advertising and marketing, Employee costs including payroll, insurance (out of control), benefits, etc............, and ongoing training and HVAC educational requirements to remain knowledgeable, competitive, and to retain HVAC professional licenses. You want a sharp (smart), licensed HVAC technician to troubleshoot the problem.(HVAC troubleshooting can be simple in some cases and complex in others). After all that is paid, the boss hopes he has enough left over to give him/herself a decent paycheck. Per hour service charges are not the only way companies charge their customers. There are also service companies that flat rate their services. Either way you pay, you want the service and troubleshooting done in a quick and efficient manner with a guarantee. Do your research before selecting a company to provide reliable, honest service to your home. Additionally, new technology and government requirements are pushing manufacturers to build more energy efficient HVAC equipment. January 2006 we observed the end of 10 SEER units with 13 SEER air conditioning units mandated by the government. This only makes sense; however, with the higher efficiency there comes complexity in the technology engineered into the equipment. A problem can be difficult to troubleshoot and diagnose and may require more time than the lower efficiency, less complex units. While it should be rare to have problems occur with new equipment, it does happen. When it does, you want a good troubleshooter who is knowledgeable and can make the diagnosis and repair in a timely and efficient manner. That means you want that HVAC contractor who sends their technicians to HVAC technical seminars and factory sponsored training classes. That can make the difference between solving the problem quickly and efficiently in hours or being frustrated waiting days or weeks to have the problem solved. Take the time to choose your contractor wisely and it will save you a lot of heartache and frustration. Common Air Conditioning Preventive Maintenance & RepairsRefrigerant ChargeLabor (troubleshooting and repair) Time: 1 hour approximate This is a very common air conditioning problem. The unit will cool for a few hours and then it stops cooling all together. The next day or several hours later the air conditioning is cooling again but for only a few hours and then the air conditioning stops again. The reason this is happening is because the air conditioning unit is low on refrigerant (the unit could freeze because of a few other air conditioning problems but this is the most common reason). Believe it or not the evaporator coils inside the AHU (Air Handling Unit) are freezing. You may notice the refrigerant lines on the condenser or at the AHU are frozen with ice build-up. The frost or ice builds up on the coils and blocks air flow (low air flow and no cooling are a sign of a low charge). A low refrigerant charge will cause the evaporator coil to operate at or below freezing. Since the coil typically operates below the dew point, it draws condensation out of the air. When the evaporator coil begins operating below freezing all this condensation freezes to the evaporator coil and the unit stops cooling. Refrigerant MythThe myth that most people believe is that if you add more refrigerant to the unit it will cool better. This is only true if the evaporator coil is operating below freezing. The unit must have a balanced charge and usually only an HVAC professional can charge your unit properly. Another misconception about refrigerant is that the unit burns it up and it must be replaced from time to time. This is not true. The refrigerant loop is a closed system and barring any leaks the air conditioning system should never need any refrigerant. Click here to see a simple representation of the refrigeration cycle. Refrigerant LeaksRefrigerant leaks should be repaired for the following reasons:
The Refrigeration Loop is a closed system and refrigerant should never have to be added to the unit unless there is a leak. Most residential units use R-22 refrigerant. Prices of R-22 are rising every year as we get closer to the date when refrigerant manufacturers will no longer be able make R-22. Phase-out of R-22, an HCFC, begins in 2010 and expected to be complete by 2020.). Make sure you ask what the service company charges for R-22 when you are calling an HVAC contractor. If your unit needs more than two pounds or charged more than once a year it is recommended you have a refrigerant leak check done to your system. You most likely have a serious refrigerant leak and it needs to be repaired. Leaking units do not operate efficiently; take their toll on the environment, and can cause serious HVAC mechanical problems in the future. A good HVAC service tech will attempt to find the refrigerant leak within the hour's air conditioning service you are paying for in addition to the refrigerant charge. Finally, after the air conditioning unit has been properly charged, the unit should have a temperature difference between the return and supply of 12° to 20° Fahrenheit (delta T). The range is generally an acceptable practice to determine if your air conditioning system is operating efficiently. If you do not have this range of temperature differential with your air conditioning system then there are problems which need to be addressed whether it is bad duct or a mechanical or electrical issue causing the problem the unit is simply not providing the cooling it needs to provide to make you comfortable. Get 3 FREE air conditioning quotes from qualified contractors in 1 call. Related Articles Refrigeration Refrigeration System Evacuation | Frozen Air Conditioner Troubleshooting | Air Conditioner Troubleshooting | How Air Conditioners Work | Air Handlers | Condensing Units Additional Related Links Air Handlers | Condensing Units | Filters | Thermostats | High Performance HVAC Home
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Comments (9)
  written by Steven Gail, March 26, 2010
I agree with your article 100% very well said.
 written by famousacandheat, May 23, 2010
We really need to send up our air conditioning unit for maintenance and repairs as this can help your unit set in good condition which will produce benefits, and comfort that a user needed.
 written by yousef alshahari, May 24, 2010 Dear Sir, would please quote up the following item urgently along with the delivery time and shipping cost to Yemen, Sana'a airport Item Qty Unit Description 1.00 5.00 PCS COMPRESSOR, AIR CONDITIONER, Brand: CARRIER, MODEL: CK20K3-PFV-601 2.00 5.00 PCS COMPRESSOR, AIR CONDITIONER, Brand: CARRIER, MODEL: 2KS282H5AA04, COOL & HEAT, 220-240 v, 60 hz 3.00 5.00 PCS COMPRESSOR FOR AIR CONDITIONER, Brand: CARRIER, MODEL 2JS340D3AA07 - 208-230 V, 60 HZ 4.00 5.00 PCS COMPRESSOR, AIR CONDITIONER, Brand: ZAMIL, MODEL: SANYO-C-R140HGB, P/N 800.678.00 5.00 20.00 PCS BLOWER FAN FOR AIR CONDITIONER, 7 3/4" DIAMETER WITH 1/2" CENTER HOLE, ROTATING COUNTER CLOCK WISE - Brand: CARRIER BEST KIND REGARDS YOUSEF ALSHAHARI YEMEN, SANA'A HADDA STREET , BUILDING 8 MOBILE: 967 714858608 TEL: 967 1 205348 FAX:967 1 209671
 written by Mr. Melody Li, May 27, 2010
Thanks!
My name is Melody Li, and I am with the ICEAGE refrigeration industry company. We are a leading supplier from China provide copper pipes, refrigerant, compressor, condensing unit, thermometer and all kinds of refrigeration equipments and accessories, and we are so proud of being offered as the exclusive agency like the YORK, CPS, WAPCO and FRIGO companies. We are looking for mutual rewarding and long-term business. We are looking forward to hearing you. PS: my MSN ( This e-mail address is being protected from spambots. You need JavaScript enabled to view it ) on-line 13.7 hours per day.
 written by fadeala, June 17, 2010
dear sir
we are oil company nead windo air condtion type carrier 51gvd-324-7a 220v - 60hz
 written by Kathy Sierra, July 01, 2010
Hello, i do agree with you undoubtedly.
This article is really very useful and nicely written by you. Anyone looking for air conditioning services will be definitely delighted to get such a short and informative content. Hoping more articles related with air conditioning. Happy writing,reading and, of course sharing. All the best !
 written by bill , July 06, 2010
air conditioning services in florida provide the best solution in all aspects of air condition maintenance and repair
written by Kathy Sierra, July 08, 2010
I am feeling good after landing in this forum again.
We provide air conditioning services, air conditioning maintenance ,and ac repair in Florida at really affordable price.
 written by stephen snyder, August 30, 2010
Hello, I know what a crankcase heater does, but what I don't understand is why do you need to keep the refrigerant vaporized in the compressor if you are not using the a/c system in cool or cold weather & the other side of this situation, that the refrigerant wouldn't be in a saturated state during the warmer months while the compressor is not operating,true?
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