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You can ask any company to offer proof of general liability specialist insurance coverage. Any business that is not ready to provide evidence of general liability (GL) insurance coverage should be prevented. A minimum basic for GL insurance is $1 million for domestic work and $2 million for light commercial.
There are other approaches for looking into a/c, heating and ventilation companies such as: contact your regional Better Business Bereau (BBB), perform online searches and evaluations and ask the business in concern for recommendations. Nevertheless, all these methods fall brief of extensive openness. The BBB in fact works for the business it represents as they are only rated if the company in concern pays them a repeating fee. Online review websites seldom show all the evaluations got, and post reviews from sources that are not constantly reliable. This provides a platform for business to post their own evaluations and people to hastily post evaluations without the company in question's capability to expertly resolve the problem. Moreover, no company would provide a negative reference; just those that are extremely positive. None of these are perfect characteristics for consumers looking for entirely objective evaluations and recommendations. It is encouraged to use these techniques as an educated customer and consider the details source for exactly what it is worth.
One of the very best ways to discover a new air conditioning, heating and ventilation professional is by means of the "word-of-mouth" approach. If the business suggested was economical, professional and dependable for a good friend or member of the family, there is a good chance that company will do the exact same for you. Great business use the word-of-mouth technique to continually supply a brand-new consumer stream by keeping their clients pleased.
Other standard approaches for discovering a brand-new air conditioning, heating and ventilation contractor consist of carrying out online searches, phone book directory sites or online directory sites and other advertisement mediums. Remember that all of these approaches are bought and paid for by the business in question. None of these methods should function as a testimonial and needs to be used just as finding sources.
3rd party suppliers such as Angie's list, Find Local and other online companies are the latest platforms for sourcing and score cooling, heating and aerating companies. Although these companies do offer a service with some merit, they are, in reality, adding expense to the consumer. Angie's List, in addition to some other online organisation directory sites, charge the consumer directly for their scores and companies' contact details. Other third-party sites offer consumers with a/c, heating and ventilation business and include the cost of being a middle-man to business formula. Bear in mind that none of these are "totally free" and that customers should comprehend the cost and worth of utilizing entities like these.
Several estimates are recommend when working with a cooling and heating contractor. There are no market requirements for prices HVAC related service or products. Similar tasks can vary countless dollars from one business to the next. A minimum of three price quotes is advised prior to the repair or replacement of any significant air conditioning and or heater element and before the style and installation of new systems.
A second viewpoint can be of value if the repair or replacement is pricey. Not all specialists or companies are equal or credible. Fixing cooling and heater is very complex. It is not unusual for a repair work service technician to be unable to separate the issue or for a representative to recommend an unneeded purchases. Calling a completing a/c and heating business can save money and time and remorse.
A simple guide to electronic components.
Frequently Asked Questions:
Who “Need” Air Conditioning?
A. Who “Need” Air Conditioning? Do People In Wealthy Nations Such As The United States “Need” Air Conditioning More Than People In Much Hotter But Also Much Poorer Nations, Such As Bangladesh Or Niger?
B. Construct A Ppc To Illustrate Your Answer Of Whether The People In Bangladesh Or Niger Need Air-Conditioning. Did Anyone “Need” Air Conditioning Before It Had Been Invented?
The states in the southern part of the U.S.
Without modern (electric powered) air conditioning, they would have continued to lose population to the northern states. As it was, with air conditioning, the southern states have seen their population grow by leaps and bounds.
6 of the 10 states with the highest growth rates are in the south and 9 of the 10 states with the lowest growth rate (including the two that are losing population) are in the north
Can you imagine Las Vegas without air conditioning?
Do You Know Anyone Who Uses A Geothermal Heat Pump For Their Home Heating And Air Conditioning?
Also Known As Geoexchange Heat Pump Or Ground Source Heat Pump.
How Much Did It Cost Them, And How Well Does It Work For Them? Do They Ever Have To Supplement It With Ordinary Heating Or Air Conditioning, Or Is It Always Plenty, Even In The Most Extreme Weather?
I had a geothermal unit (water to air heat pump)installed in October, 2007. I paid approx $8,000. There has not been any extreme weather here in North Carolina, but I don't have a supplement system (except for a fireplace (winter) and fan (summer).. This unit was a replacement for water to air heat pump installed when the home was built in 1977. So I have used water to air heat pump system for 30 years and am pleased with the results. You should take advantage of the tax credit incentive! My system is GT048HZN STandard low temp Florida Heat Pump, 19EER/ 4.5 c.o.p., 4.0 ton nominal which was connected to EXISTING ductwork and water supply.
Chillers In Air Conditioning?
I Have To Do A Project On Modern Air Conditioning. I Want To Know What Kind Of Air Conditioning Is Used In Most Modern Buildings These Days. I Heard They Use Water Cooled Chillers And Pump The Water Into The Building. If This Is True, Could Someone Please Explain How This Works Or Give Me Some Useful Links To Some Information. Thanks In Advance....
The process of removing heat from a building can be done several ways: 1) a water cooled chiller, 2) an air cooled chiller, 3) heat pump loop with cooling towers (heat rejection towers). The main difference between them all is where the heat is transfered. The first two systems use water to cool air that contains the heat of the space(rooms), with the main driving thermodynamic process occuring at the chiller. The heat pump system uses boxes that the refrigeration process occurs within the space, and uses a water loop to take the heat outside.
The thermodynamic process that allows heat to be transfered requires a fluid that has a low boiling point (ie converts from a liquid to a gas called a phase change). When the fluid goes through the phase change, energy is required to make the fluid/refrigerant convert it's state. That energy is called the "Latent Heat of Vaporization". All modern air conditioning works on this principle. As warm room air flows over a coil with the refrigerant (liquid state), the heat from the air is absorbed converting the refrigerant to a gas thus cooling the air. The refrigerant than needs to be "cooled" thus converting it back to a liquid. That is the purpose of the chillers and/or heat pumps. With chillers, all the heat of the building comes back to the central point via a water loop(the chiller) where the thermodynamic process occurs. With the heat pump, the thermodynamic process occurs at the point of heat generation (ie room).
With the water cooled chiller, heat is removed from the rooms of the building, then taken back to a chiller located within the building. There that heat is then transfered to another water loop (condenser loop) within the chiller device. The condenser water is than run up to a cooling tower located outside the building where the heat is rejected to the atmosphere.
An air cooled chiller is simpler than a water cooled chiller in that there is no cooling tower, and no condenser water loop. The heat is removed from the rooms of the building and taken directly to the chiller located up on the roof. From there, the thermodynamic process removes the heat from that water loop directly to atmosphere.
A heat pump system uses the thermodynamic process of refrigerant cooling directly within the room, transfering the heat to a common water loop that takes the heat out to a cooling tower on the roof.
Each system has it's benefits for many factors including first cost, efficiency(operating costs), and building space required. The water cooled system is the most expensive first cost, but the most efficient and therefore operationally cheapest to run. The heat pump system is the cheapest to install, but depending upon several factors can be cheaper to operate than the air cooled chiller. The air cooled chiller is typically installed in systems where low temperatures need to be achieved, and heat pumps can't to it, but system first costs can't be as high as the water cooled chiller.
Who, Where, When And Why Did They Invent The Air Condtioner?
An earlier form of air conditioning was invented in Persia (Iran) thousands of years ago in the form of wind shafts on the roof, which caught the wind and passed it through water and blew the cooled air into the building .
The 19th century British scientist and inventor, Michael Faraday discovered that compressing and liquefying a certain gas could chill air when the liquified ammonia was allowed to evaporate. His idea remained largely theoretical.
In 1842, Florida physician Dr. John Gorrie used compressor technology to create ice, which he would use to cool air blown over malaria and yellow fever patients.  He eventually had a vision of using his ice-making machine to regulate environment in buildings. He even envisioned centralized air conditioning that could cool entire cities.  Gorrie was granted a patent in 1851 (Patent #8080, USPTO) for his ice-making machine. The technology was attacked by Northern businessmen with the help of religious leaders they got to call the technology blasphemous, in order to protect its business of exporting natural ice to Southern states. When both his partner and he died in 1855, the idea of air conditioning died with him for the time being.
One of the first uses of air conditioning for personal comfort was in 1902 when the New York Stock Exchange's new building was equipped with a central cooling as well as heating system. Alfred Wolff, an engineer from Hoboken, New Jersey who is considered the forerunner in the quest to cool a working environment, helped design the new system, transferring this budding technology from textile mills to commercial buildings.
Later in 1902, the first modern, electrical air conditioning was invented by Willis Haviland Carrier (1876–1950). His invention differed from Wolff's in that it controlled not only temperature, but also humidity for improved manufacturing process control for a printing plant in Brooklyn, New York. This specifically helped to provide low heat and humidity for consistent paper dimensions and ink alignment. Later, Carrier's technology was applied to increase productivity in the workplace, and the Carrier Engineering Company, now called Carrier (a division of United Technologies Corporation), was formed in 1915 to meet the new demand. Later still, air conditioning use was expanded to improve comfort in homes and automobiles. Residential sales didn't take off until the 1950's. The Royal Victoria Hospital, Belfast, Northern Ireland, is a Landmark Building in building engineering services (built in 1906) and lays claim to being the first “Air conditioned Building in the World”.
In 1906, Stuart Cramer first used the term "air conditioning" as he explored ways to add moisture to the air in his southern textile mill. He combined moisture with ventilation to actually "condition" and change the air in the factories, controlling the humidity so necessary in textile plants.
The first air conditioners and refrigerators employed toxic gases like ammonia and methyl chloride, which resulted in fatal accidents when they leaked. Thomas Midgley, Jr. created the first chlorofluorocarbon gas, dubbed Freon in 1928. The refrigerant proved much safer for humans but is harmful to the atmosphere's ozone layer. "Freon" is a trade name of Dupont for any CFC, HCFC, or HFC refrigerant, the name of each including a number indicating molecular composition (R-11, R-12, R-22, R-134). The blend most used in direct-expansion comfort cooling is an HCFC known as R-22, and is slated to be phased out for use in new equipment by 2010 and completely discontinued by 2020. R-11 and R-12 are no longer manufactured in the US, the only source for purchase being the cleaned and purified gas recovered from other air conditioner systems. Several ozone-friendly refrigerants have been developed as alternatives, including R-410A, known by the brand name "Puron".
Please Pick my answer as Best Answer! All the best for your project!!
What Would Cause My Air Conditioner Coils To Freeze?
I Have A Nordyne Furnace E3eb-010H With The Indoor Coil And On The Side I Noticed That There Was A Frost Forming Over The Coper Coils On The Side. So I Cleaned The Air Filters And I Do That On A Regular Basis Anyway But Today I Noticed That The Coils Where Iced Over And The Coil Air Filters Where Iced To The Coil , So I Turned The Thermostat On The On Position To Thaw It Out. But It Is Still Frosting Over. I Called A Technician And Asked What He Thought And He Said It May Be Low On Freon, He Wants To Charge Me $55 Just To Come Look.The House Isnt Even 2 Years Old So Is That Normal To Be Low On Freon That Soon? I Am Pretty Good About Fixing Things So If Anyone Has Any Advice I Would Greatly Appreciate It. Thank You =)
If your using a washable type filter. I suspect that the evaporator coil itself maybe plugged up.
The washable filters are the worst filter you can use. They allow too many particulates to pass though and in turn plug up the evaporator coil. Which restricts air flow and hence you have the condition your in.
Always use a pleated filter and change every 30 days.
The conditions that cause the problem that you may have (in no order)
Air Flow problem
- Dirty Filter
- Pluged evaporator coil
-Blower not working
Failed TXV valve (meters refrigerant)
With the system only being 2 years old if any parts have failed, then the part itself would be under warranty NOT the labor. You have to pay labor.
So, I would recommend leaving the system OFF untill you can have someone come out and trouble shoot the problem.