Category Archives for "Air Conditioning"

Jul 26

The Evolution of Air Conditioning System

By Robert Perez | Air Conditioning

As summer approaches with unbearable humidity and soaring temperatures, many homeowners turn to that marvel of inventions and discovery, which is the air conditioner. Homeowners activate these units with the simplicity of flipping a switch to complex electromechanical systems, the products of close to a century of engineering development in thermodynamics, cooling, controls, and energy efficiency. Air conditioning has origins in the second century China, where Ding Huang, an inventor, developed a manually powered rotary fan. The idea of air-cooling intrigued the American inventor Benjamin Franklin, who conducted experiments with alcohol evaporation in 1978 to attain freezing temperatures.

The Evolution of Air Conditioning SystemWillis Carrier: The Brains behind the Air Conditioner

Willis Haviland Carrier invented the first contemporary air conditioner in 1902. He is an expert engineer who started experimenting with humidity regulator to solve an application issue at a printing plant in Brooklyn. Deriving from the concepts of mechanical developed in the earlier years, his system transferred air through coils full of cold water, cooling the air and removing moisture to control the humidity in the room. In 1933, the Carrier Air Conditioning institution of America made an air conditioner utilizing a belt-driven condensing system and associated blower, mechanical controls, as well as an evaporator coil, which grew to became the model in the developing U.S. air-cooling systems’ market.

Willis Haviland Carrier was an American inventor, engineer, and is known to be the man who invented the modern day air conditioning. Whereas contemporary air conditioners operate on the same basic science as Carrier’s 1933 units, they incorporate developments in the compression of vapor, electronic sensors, diagnostics and controls, materials as well as energy efficiency. Carrier’s new premium central air conditioner is very different from the founder’s early models, featuring progressive parts, including two-stage scroll compressors for quieter and more energy-efficient performance.

Energy Efficiency Principles Set By The U.S.

The Department of Energy is spearheading improvements in air-conditioning systems. In further efforts to minimize the amount of energy used, some air-conditioning unit manufacturers have started stretching the capabilities of the standard wall thermostat, creating sophisticated microprocessor-based control and diagnostic kits that automate the functioning of the compressor and airflow system. The ComfortLink II remote thermostat by Trane offers the homeowner the ability to adjust settings and functions on the air conditioner from web-enabled cell phones and off-site computers; ComfortLink would additionally send emails and text alerts on when you need to replace the filter or schedule for routine service inspections.

Currently, nearly 80% of households in America have the central air conditioners, according to the Energy Information Administration. Progressively growing from being a form luxury to a necessity and significantly contributed to the quality of life in the country and the industrialized world. On top of the obvious enjoyments and benefits of comfort cooling, the air conditioner transformed architectural design, allowing houses without porches and windowless office buildings. Air conditioning has also played a significant role in the migration patterns and the economic development of the United States, allowing many homeowners to live and work in areas known for their hot climates.

Jun 12

Top Reasons behind those Air Conditioning Odors

By Robert Perez | Air Conditioning

Air conditioning systems are commonly used in homes to enjoy nice, steady cool temperature throughout the home. However, if a nauseating odor is laced with the cool air, it’s likely to ruin the refreshing sensation. Of course, you want to eliminate the cause of nasty smell immediately. Read on to learn more about the reasons behind various air conditioner (A/C) smells and how to resolve them.

Air Conditioning OdorsMildew-like Odor

As the most widely recognized odor accompanying cold air from an air conditioning unit, a moldy odor without a doubt implies fungus or mold growth is developing in or around the A/C. Though, this doesn’t really come as a surprise. In any case, A/C’s also remove extra moisture other than cooling the air in your home. If it’s not dried up as it should be, mold may start to develop on parts with lingering moisture. Call a professional A/C to deal with this issue and thoroughly remove the mildew smell.

Sewage-like Odor

This smell may be coming from a ruptured sewer vent pipe or backed up sewer line near the duct system. All it takes is a little methane gas from the sewage leak to get into the ductwork, and your whole house will smell like a sewer. Methane gas is unsafe, so contact an HVAC technician immediately once you smell a sewage odor.

Feet-like Smell

A clogged, dirty A/C may give off a stinky feet smell. This is triggered by stagnant water that accumulates in the system and isn’t drained away properly. A full cleaning by an expert should be enough to resolve the problem.

Gun Powder Smell

A shorted out fan motor or circuit board may emit a gunpowder smell out of the supply registers when the A/C initially cycles on. An expert A/C technician can take a look at the cooling system and recommend replacing aging parts if needed.

Smelling Like Exhaust Fumes

Your A/C is powered by electricity, not gas, but the engine and a few other components have fluids inside that can leak out. When this occurs, the odor of exhaust fumes may fill your home. To stop a damaging circumstance from emerging, have the A/C fixed immediately.

Rotten Eggs Smell

A dead animal is the most common cause of a spoiled or rotten egg smell coming from the air vents. A sick or injured bird or rodent may have clambered inside an air duct during the winter where it perished and started decomposing. Now, when you turn on your A/C for the first time in the summer, a strong odor ruins the effect of cool air permeating your home. You should have your ducts professionally cleaned as soon as possible to get rid of any rodent remains.

Skunk-like Odor

This odor could be caused by a dead skunk in or around the ductwork, but that’s not very likely. What’s much more probable is that gas is leaking from somewhere. Methyl mercaptan from the gas leak, which smells so much like skunk spray, may be permeating the ductwork and flowing around your home. In this case, get out of the house immediately and call your gas company and an HVAC expert immediately.

Nov 11

The Benefits of a Window Air Conditioning Unit

By Robert Perez | Air Conditioning

4474291634_97dcab302e_o

Room air conditioners or window-mounted ACs are the most standard ACs you’d find in homes, but you typical won’t have one installed by a heating and air conditioning company. They fit in most windows, and they’re very efficient. The measurements that involve ACs are called Energy Efficiency Ratio or EER and Seasonal Energy Efficiency Ratio or SEER, and they both have something to do with how efficient and energy-saving the AC is. The higher the EER or SEER, the less energy it consumes. Window-mounted ACs have an average of 10 to 11 EER, which is less compared to split-type AC or central AC, but it doesn’t make window-mounted air conditioning less efficient. In fact, if you’re after energy efficiency, a window-mounted AC would be the best choice for you despite its lower EER.

 

Although efficient, a central AC is designed to cool a whole floor – even empty rooms, which will take a longer time to cool the entire floor completely since it has to go through empty rooms. Window-mounted AC, on the other hand, adopts a short period of cooling a room since it’s only turned on when there are people in the area.

 

On the contrary, the window-mounted AC simply gets air from the other side of the window, the process of conversion and cooling the air happens in the same system in a matter of seconds. Meanwhile, central AC gets the air from outdoors, as well, but makes the air go through the ducts in the house’s attic and the conversion takes place in another part of the system. The trouble with central ACs is that the ducts are very vulnerable to holes and tear, and at the same time, they’re located in an almost inaccessible area of the house. When ducts get holes, they decrease the AC’s efficiency by 20%, also reducing the cooling output.

 

The downside of window-mounted ACs is that they’re not so quiet. Nonetheless, this same noise reminds homeowners to turn them off before they leave the room. On the other hand, central ACs are stealthily quiet and cold at the same time which makes them forgotten and working even in empty rooms all day.

 

In conclusion, although very efficient, central AC encourages unnecessary and excessive usage, unlike window-mounted AC that has a noise that can serve as a reminder for homeowners to turn them off.

Another helpful fact is that when sleeping, we only need 6,000 BTU/hr to keep us cozy, and using a central AC is too much and is more than what we need. If this is too much, it could be too cold and uncomfortable.

The secret to saving power while enjoying the cold air is to get a window-mounted AC that has a lot of features, which can help conserve energy or save money because of its functions, instead of getting another appliance. If you are not satisfied with the cold air that the AC produces, it’s best to insulate the walls in your house, so the coldness stays in the room much longer even after turning the AC off.