Why Do Industrial Air Conditioning Systems Need to Be Cleaned?

Ventilation of fresh air into the working environment of both offices and factories is needed for a number of reasons, for example, to provide a steady flow of oxygen for the occupants to breath. Over time, the air conditioning plant and air ducts will inevitably become contaminated, and it is important that these should be kept clean before they adversely affect the health of the people working within the buildings.

Ventilation is a term that refers to the flow of air into and out of a working area, for example and office space, so that any contaminants are diluted by adding some fresh air. This can be provided by:

a) natural ventilation which relies on wind pressure and temperature differences to move fresh air through a building and is usually not fully controllable. or b) mechanical or forced ventilation that uses mechanical extraction and/or supply to deliver fresh air and which can be controlled.

Fresh air i the working environment is needed in order to; - provide oxygen for breathing in and to remove carbon dioxide from breathing out; remove excess heat or, if conditioned, provide heat (e.g. in winter) and keep a comfortable temperature; - dilute and remove body and other types of odours (e.g. food); and - dilute any contaminants caused by workplace activities (i.e. the use of dilution ventilation following a risk assessment).

Insufficient fresh air may result in headaches, lethargy, tiredness as well as dry or itchy skin and eye irritation in your workforce. These symptoms might also occur when working in buildings and offices that have been poorly designed as well as when the working environment is poor. The symptoms are generally worse in buildings where there is not enough fresh air, or where the fresh air supply may come into contact with contaminants in the air supply system. These are common symptoms of what is generally known as "Sick Building Syndrome".

So, keeping the air ventilation system, including the air ducts, clean is an important element of facilities management.

The Approved Code of Practice to Regulation 6 of the Workplace (Health Safety and Welfare) regulations 1992 requires that any mechanical ventilation systems, including air conditioning systems, which you use to provide fresh air should be regularly and properly cleaned, tested and maintained to make sure they are kept clean and free from anything which may contaminate the air and cause health problems.

As a useful guide, if you can run your fingers along the inside of a duct and you find that it becomes covered with dust then the ducting probably needs cleaning. A good source of information on testing for likely contaminants in ductwork and on cleaning are oganisations such as the Chartered Institution of Building Services Engineers (CIBSE)and the Heating and Ventilation Contractors Association (HVCA).

A reputable air-duct cleaning company will have a wide range of specialist devices, air jets and brushes designed for cleaning air ducts, which will allow them to eradicate contamination and disinfect air ducting where necessary. An air duct system is generally cleaned in the direction of the airflow. Therefore, a supply system is cleaning in its entirety from the fresh air intakes through to the supply diffusers. Conversely, the return extract is cleaned from the extract grills through to the mixing chamber or discharge.

On completion, it is often recommended that the ventilation system is sanitised to provide long term protection. For example, a polymeric emulsion Sanitiser (PDS) is atomised into the ventilation system. After it has been introduced into the ventilation system it leaves an thin layer on the air duct surface that reduces corrosion. PDS also contains an anti-microbial for long term air duct protection.Ventilation of fresh air into the working environment of both offices and factories is needed for a number of reasons, for example, to provide a steady flow of oxygen for the occupants to breath. Over time, the air conditioning plant and air ducts will inevitably become contaminated, and it is important that these should be kept clean before they adversely affect the health of the people working within the buildings.

Ventilation is a term that refers to the flow of air into and out of a working area, for example and office space, so that any contaminants are diluted by adding some fresh air. This can be provided by:

a) natural ventilation which relies on wind pressure and temperature differences to move fresh air through a building and is usually not fully controllable. or b) mechanical or forced ventilation that uses mechanical extraction and/or supply to deliver fresh air and which can be controlled.

Fresh air i the working environment is needed in order to; - provide oxygen for breathing in and to remove carbon dioxide from breathing out; remove excess heat or, if conditioned, provide heat (e.g. in winter) and keep a comfortable temperature; - dilute and remove body and other types of odours (e.g. food); and - dilute any contaminants caused by workplace activities (i.e. the use of dilution ventilation following a risk assessment).

Insufficient fresh air may result in headaches, lethargy, tiredness as well as dry or itchy skin and eye irritation in your workforce. These symptoms might also occur when working in buildings and offices that have been poorly designed as well as when the working environment is poor. The symptoms are generally worse in buildings where there is not enough fresh air, or where the fresh air supply may come into contact with contaminants in the air supply system. These are common symptoms of what is generally known as "Sick Building Syndrome".

So, keeping the air ventilation system, including the air ducts, clean is an important element of facilities management.

The Approved Code of Practice to Regulation 6 of the Workplace (Health Safety and Welfare) regulations 1992 requires that any mechanical ventilation systems, including air conditioning systems, which you use to provide fresh air should be regularly and properly cleaned, tested and maintained to make sure they are kept clean and free from anything which may contaminate the air and cause health problems.

As a useful guide, if you can run your fingers along the inside of a duct and you find that it becomes covered with dust then the ducting probably needs cleaning. A good source of information on testing for likely contaminants in ductwork and on cleaning are oganisations such as the Chartered Institution of Building Services Engineers (CIBSE)and the Heating and Ventilation Contractors Association (HVCA).

A reputable air-duct cleaning company will have a wide range of specialist devices, air jets and brushes designed for cleaning air ducts, which will allow them to eradicate contamination and disinfect air ducting where necessary. An air duct system is generally cleaned in the direction of the airflow. Therefore, a supply system is cleaning in its entirety from the fresh air intakes through to the supply diffusers. Conversely, the return extract is cleaned from the extract grills through to the mixing chamber or discharge.

On completion, it is often recommended that the ventilation system is sanitised to provide long term protection. For example, a polymeric emulsion Sanitiser (PDS) is atomised into the ventilation system. After it has been introduced into the ventilation system it leaves an thin layer on the air duct surface that reduces corrosion. PDS also contains an anti-microbial for long term air duct protection.

Ductless Air Conditioning - The Simplest Easiest Way to Provide Cooling Or Heating in Many Buildings

Ductless air conditioning is an excellent way to cool the entirety of your home efficiency, attractively, and easily. Ductless air conditioning systems are those, which are built without central air systems and are used for heating or cooling your homes or offices. These systems are made up of of two basic components: an indoor unit and an outdoor unit. A ductless a/c system is a cost effective choice to central or window air conditioning system.

For many years ductless these systems have been the quiet solution for cooling and heating problems around the world. Like what it sounds like, ductless a/c simply means an air conditioning system without the ductwork a normal a/c system would have. Here are a few of the advantages ductless air conditioning has over traditional ducted a/c. Unlike traditional a/c, these systems take up very little space, and are not visually unappealing. Unlike many traditional air conditioners, a system like this is very quiet. Using the thermostat, this type of system will be able to keep the room a constant temperature. If you're looking for an easy way to beat the heat, a ductless unit in each room you want to cool might be the right choice.

Cooling systems for apartments or even individual rooms are now easily installed and your individual needs can be satisfied through various options in the ductless air conditioning world. Instead of installing a central unit with ducts, many homeowners choose ductless systems for just one or two rooms. The indoor part of the these units have remote control capabilities and a timer to cycle the system only when needed. A ductless mini split is not only amazingly quiet and effective but also offers a/c with a heat pump version as well. Most manufacturers for these units recommend installing the interior unit near the top of the wall or at the ceiling.

For homes without ducts, air-source heat pumps are also available in a ductless version called a mini-split heat pump. Take the time to ask your qualified HVAC expert if ductless systems are right for your home. Most installers are accustomed to the most conventional heating and cooling systems, and often refuse to recommend ductless systems. If you are planning to install a/c or heat in your home, then you must at least have a look at this type of system.

Today simple, ductless a/c options make it possible to install a quiet, efficient a/c system in your home or business even if it doesn't have ductwork. It hasn't been around that long, but now that it's here, ductless air conditioning is catching on fast.

Articulated Dump Truck - Benefits of an All Terrain Vehicle!

Manufacturers know that their equipment is designed to best compliment the needs of a business whose product or service is most interested in buying that equipment, which is why most machinery is built to increase the productivity of the purchasing company. An articulated dump truck (ADT) is one type of equipment that features this versatility.

There are several ADT models that have loading capacities that range from 25 to 40 tons or more and are very useful for moving material such as rocks, gravel, soil and sand. ADT's are among some of the newest types of equipment being used by the mining and construction industries and are equipped with great technological advancement.

ADT's are built with articulated frames on both the front and back and are separated by an oscillating hitch. This feature distinguishes this dump truck from a standard dump truck. This design also features truck wheels that are all kept on the ground at the same time, resulting in minimal stress on the frame of the vehicle and enabling it to operate on all different types of terrains. The cab is built with various improvements which offer maximum comfort for the operator.

Built with Power

An ADT engine is the reliable source of the vehicle's energy. The engine is commonly known as the power train and is installed beneath the cab. This location provides excellent torque to the entire truck. Maximum fuel efficiency is achieved by the reliable power transmission that features both smooth gear shifting and maximum wheel power.

Improved Productivity

Improved productivity is achieved through superior physical ability and traction that meets any larger load capacity. ADT's are designed for driving stability and wheel power; they work under rough conditions while maintaining a considerably faster driving speed.

Stability

The articulation system of this vehicle offers the best possible tire-to-ground contact on all types of terrain. A lower center of gravity and sideways stability is maintained with the tire width and the rear frame design. Maneuverability is maintained through the equal weight distribution of the front wheels.

Operator's Comfort

The cab of an ADT is equipped to provide operators with excellent comfort through air-conditioning and the inclusion of an air suspension seat. The cab is designed for lower noise and vibration levels, good visibility, and precise steering.

Chassis Design

The chassis of an ADT is designed to balance the weight ratio of the load and a hydraulic system which is located on the rear of the chassis. This hydraulic system enables the dump truck to be raised, lowered and released, with control levers and switches inside the cab. Both the brakes and the suspension are located in the rear of the chassis.

Other than the dumping body, the chassis can be easily mounted with other mechanisms such as: log and pipe carrier; water tanks; hydraulic booms; drill rigs; and special trailers.

ADT vs. Dump Trucks

The ADT is equipped with higher horsepower engines; diagnostics and electronic controls; and smoother gears. There are also optional features available such as auto lube, rear view camera, ejector, tailgate and a cab air-conditioning system.

All ADT truck cabs can be moved separately from the body of the vehicle through the oscillation joint, which is located between the body and the cab. The articulated steering technique allows the truck to make tighter turns and has better movement capabilities. ADT's have a more advanced design which cannot be found on most dump trucks, making this equipment capable of achieving maximum productivity and efficiency in any hauling and transporting circumstance.

Considering all the benefits that a company can gain by investing in an articulated dump truck, this makes this all-terrain dump truck one of the most valuable investments for any company!

Main Features of Central Air Conditioner

Summers have become unbearably hot today that an air conditioner has become inevitable in every home. One of the best options is to invest in an Central Air Conditioner as they are capable of cooling your home completely as opposed to just one or two rooms. These air conditioners function by filtering, cooling and dehumidifying the air in your home.

If you are planning to purchase a central air conditioner, there are some aspects that you need to look into before buying one.

Remember that quality central conditioners will have a high level of seasonal efficiency ratio. Even though, they may be a bit more expensive, they may prove more economical in the long run as they consume only a lower amount of energy and provide excellent cooling. So settle for a central ac that has a rating between eighteen and twenty three.

Another main aspect to keep in mind is the kind of compressor that the device makes use of. So make sure that the compressor is extremely reliable and long lasting. There are two kinds of compressors available today namely the scroll and reciprocating compressor. It is better to choose an AC with the scroll compressor as they are more long lasting and are less noisy and more competent.

Most brands of these AC's come with excellent guarantee and this is extremely important. Ascertain that the central air-conditioner that you finally settle for has at least a ten year warranty for the compressor and five year guarantee for the other parts.

Do not forget to make sure that these devices come with a thermostatic expansion valve which can manage the movement of refrigerant through the air cooler. Good quality central air conditioners will have automatically controllable TEV or TXV which can manage the flow of refrigerant according to the requirements of the device.

There are many reputed brands of such central-air-conditioners available today including Sears which is supposed to be one of the best in the market.
Just keeping in mind the above mentioned aspects will help you to purchase a good quality central air conditioner.

Best Mini Split System Size For Cooling Your Room

Are you interested in purchasing a mini split system air conditioner? Regardless whether you are just supplementing your central air conditioner to reduce the utility bill, or if you are buying a mini split unit as a main air conditioner, you are looking to save money in the long run with a split AC system. But you must first determine the size of your unit so you will not be disappointed. You will save even more money when purchasing the mini split when picking the size right.

The principal elements that determine the size of your split type air conditioner are: Square footage of the room, Number of people inhabiting the space, Sunny windows, Shaded windows, Doors, and any major heat producers in the room such as kitchen appliances. Let's see how the formula works.

The basic formula

If you do nothing else, keep in mind that "one ton" or 12,000 BTU/h of air conditioning output will cool a 400 square feet room of normal height. BTU is the cooling capacity of the mini split system that will be given in the brochure, online, and in the box. BTU stands for British Thermal Unit.

The advanced formula

When you want to be more precise in your estimation use this formula: BTU = 35 x square footage. So the larger the floor plan, the bigger the split AC system capacity.

Additions to the advanced formula

1. When your room that you are cooling includes appliances that produce heat, add 4000 BTU to the total. This assumes a standard size kitchen with a refrigerator, a stove, and an oven.


2. When you have windows that are sunny, add 1000 BTU to the total estimate for each 10 square feet of sunny windows.


3. When you have windows that are in shade, add 500 BTU for each 10 square feet of shaded windows.


4. Add 1000 BTU for each door leading to an unconditioned space as well.


5. Finally, for each person over two that occupies the space on a regular basis, add 1000 BTU to the formula.

When you add all the components together, you will get an estimate of how powerful a mini split unit you need to be able to cool your room down properly, yet keep it small and less expensive to purchase at the same time.

What's This About Energy Star and Your Heating and Air Conditioning?

You have surely seen the Energy Star logo on appliance stickers. It's a familiar logo now, but if you asked what it means the common answer is, "The unit will use less energy." But this appliance rating really applies to much more than just the amount of energy produced.

The Energy Star rating was created through a cooperative effort between the U.S. Environmental Protection Agency and the U.S. Department of energy. The goals of the program include:

>> Designing products that use energy efficiently

>> Lowering the cost of consumer utility bills

>> Improving the comfort of homes through more efficient heating and cooling units

>> Protecting the environment by lowering green house emissions

That's a lot of end goals represented by a little label. Heating and cooling systems that earn this rating will be cheaper to operate and kinder to the environment. Did you know that statistics show that approximately half of all the energy used in a house is the result of running a furnace or air conditioner?When you heat and cool more efficiently you are actually lowering a major household expense.

Proper Installation is Half the Energy Battle

Of course, when you buy an HVAC system or home heating and air conditioning unit,you will need to make sure it is properly installed. The Energy Star folks not only developed an energy rating. They also created the Quality Installation guidelines. You need a professional installer who is familiar with and can follow the Quality Installation guidelines to insure your unit works as intended.

But even those who have an older system can benefit. The professional heating and air conditioning technician can often apply many of the Energy Star maintenance and performance improving techniques to older systems too. Your home will feel more comfortable because your unit is working more efficiently. This is true for HVAC systems installed in businesses too.

Not Comfortable?

The government guidelines recommend that systems older than 10 years old should be replaced if possible with an Energy Star unit. One way to tell if you need a new system is when you notice your house is no longer comfortable whether it's summer or winter. Inadequate air flow, air not properly cooled or heated,and humid air are all signs of a system needing repairs or replacement.

By the way,just installing a new heating, air conditioning or HVAC unit is not the end all. You want to make sure your system operates efficiently and also have your contractor:

>> Install a programmable thermostat

>> Seal all ductwork leaks including around grills or registers

>> Insulate ducts with R-6 insulation or higher in areas that are not heated or cooled

>> Periodically diagnose the operating efficiency of your unit

>> Have combustion safety tests performed after duct sealing

>> Close off air leaks in the house to get improve unit performance

The Energy Star rating has a big message behind a small label. Whether you replace your heating and cooling system now or in the future, it's important to do everything you can to make sure your system is operating as efficiently as possible.

Make Sure Your Home Heating System Is Working Properly

Myth: Turning the thermostat way down will cool the home faster.

On standard air conditioning systems turning the thermostat far below the current temperature will not affect the rate of cooling at all. They are single speed cooling so when they are on they are on at full blast 100% of time. On multiple stage air conditioning systems setting the thermostat more than a few degrees below the current temperature will ensure that your air conditioning turns on to its highest stage. Chances are very good though, that if your air conditioner is running for more than 10 minutes that it is already in its primarily and largest cooling stage. For optimum efficiency and cooling you should set and forget the thermostat when you are home. Fiddling with the thermostat just won't do the trick.

Myth: To save energy you should have the thermostat off when you are not home such as at work during the day.

Yes, this will save you energy, but you defeat the purpose of the air conditioning system when you do this. The first purpose of the air conditioning system is to remove moisture from the air. Once the moisture from the air is being decreased the comfort level and temperature of the air will be increased. It is far more efficient and comfortable to have a secondary set point on your thermostat for your "away" periods. So if you are comfortable at 75 degrees you should turn your thermostat to 80 degrees (about) when you are at work and not at home. This will enable your air conditioner to not cycle on and off as often and still remove moisture from the air when you are away at work. This allows your home to reach a comfortable temperature and moisture level once you arrive at home more quickly. Having a setback thermostat is very helpful here as you can set the air conditioner to come on 30 minutes or more before you arrive home to get you home to an optimum temperature. If your home gains as little as 24,000 BTUs an hour (2 Tons) and you are gone for 8 hours this means you could have a total heat gain of 192,000 BTUs (16 Tons). This would take a 4 Ton air conditioner approximately 4 hours of continuous operation to remove. Allowing your home to heat up during the day to well past your comfortable point will only mean that you will be uncomfortable for hours as the air conditioner removes the excessive heat buildup.

Myth: Purchasing an energy efficient air conditioner will save on electricity bills.

This is a long standing myth perpetuated by the manufacturers and then in turn by the utilities and the EPA. The secret is out and has been for several years. Installing high efficiency equipment by itself does not automatically reduce your electric bills and may actually increase them. Installing new equipment can significantly reduce your heating and air conditioning bills provided that the systems are installed correctly, correctly matched, correctly sized and sealed. Most air conditioning duct systems leak profusely. Sealing these ducts will enable your bills to see dramatic reductions that new equipment just cannot match. Most heating and air conditioning contractors oversize new air conditioning systems to avoid having the "not enough" cooling complaints. A properly sized and installed air conditioning system, not just the box outside, will increase comfort and savings.

Myth: The air conditioning system should cool the home in about 20 minutes.

This is a common misconception. A properly sized air conditioning system should be able to keep up with the heating load during the average summer day. The internal temperature in the home should increase during hotter than normal days and the air conditioning system should run continuously. On cooler than normal days the air conditioner should cycle on and off more quickly. While running your air conditioner for 20 minutes will make you feel cooler, especially if you are sitting below a supply register, but the furniture, the walls and the every solid object in the home will not be cool. Once the oversized air conditioner shuts off, the air temperature quickly exceeds the set point on the thermostat and the air conditioner turns back on. This constant on-off cycling is detrimental to the life of the air conditioner and will increase utility bills.

Myth: Home air conditioners last only 10 to 12 years.

While it is common for air conditioning systems in homes to fail somewhere in or near to the 10 - 12 year mark, it should not happen. Nearly all failures related to heating and air conditioning system are the result of a lack of maintenance and improper installation. Lack of maintenance is paramount in extending the life and usability of your air conditioner as well as keeping your utility bills as low as possible. When the filter is dirty, the blower wheel is dirty and the evaporator coil is dirty the airflow through an air conditioning system is reduced. This opens up the chance for the Freon to return to the outdoor unit in a liquid form. If this happens the compressor will fail. The compressors simply cannot compress a liquid. The Freon pressures indicating low on Freon and lack of airflow are virtually the same. The temperatures are different, but many service technicians charge Freon by pressure rather than by pressure and temperature. This situation leads to overcharging the air conditioner with Freon which makes it work harder and eventually causes it to prematurely fail. When checking the Freon charge in any residential air conditioner it is critical to measure the airflow and verify that at least 350 cubic feet of air is being moved per Ton of air conditioning.

The Pros and Cons Of Using Ground Source Heat Pumps

The Ground Source Heat Pumps is a geothermal system that harnesses the geothermal energy of the ground water to produce heat and thus, the heat is to be used to raise the temperature of the interior environment of a house or a building during winter season. Pipes are to be laid around the house to use these types of systems. These pipes collect the heat from the ground water and then supply it to fridge type equipment installed in the house or the building which ultimately supplies the heat to the interior air of the house. Below are the pros and cons for using this kind of heating mechanism.

The pros of using these systems include:

1. The Ground Source Heat Pumps are eco friendly in their use as ground water are referred to as a clean source of energy. This method doesn't require combustion of fossil fuels or other conventional sources of energy to provide heat that are harmful to the environment. Thus, this feature makes it an excellent green method for use in house warming and heating needs.

2. The energy harnessed from the ground water is free, which makes this system really economical in its use. This system is more economical to use instead of using the electricity driven systems that consume electricity and are costlier as compared to these systems.

3. The higher life of these Ground Source Heat Pumps and usage of the renewable or non-conventional source of energy makes this system to be preferred over the other conventional systems.

4. It requires low maintenance and thus protects you from the maintenance overheads and also guarantees a clean operation.

5. The process of operation is not noisy and there are no noisy outdoor units.

The cons of using these systems include:

1. The Ground Source Heat Pumps are a little costly to install and requires a high cost in laying the wires around the house and to drill the boreholes.

2. These systems require good insulation for their operation. This is the vital requirement in using these systems. If the insulation is not good (normally in the case of old houses) these systems cannot be used efficiently.

3. Apart from the installation charges that are huge in comparison to the other heating systems, Ground Source Heat Pumps require a lot of space for its installation and for drilling the boreholes of the right depth that act as a disadvantage with respect to its other counterparts. Adequate space is a necessity for the installation of these systems and if you live in a dense neighborhood, it will be tough and can be practically impossible for you to use this system.

4. These systems, however, require a little or no maintenance, however, sometimes; there can be a leakage in some of the pipes. Thus, tracing the leakage and to repair it may sometimes prove to be a costly issue in its operation.

5. These systems are also not that efficient and lack in the efficiency as compared to their competitor systems like combination boilers and central heating system. The renewable source of energy is not as efficient as non-renewable source of energy which is produced by these systems in their operation.

The cons of these systems are however based on situations. The real time performance analysis of these systems shows that they have been successful in deployment and usage as compared to the other types. The installation and maintenance may be a little higher but the efficiency of the system is also greater. So, that neutralizes the expenses to be in level with the normal capital and operational expenses as would be incurred in setting up some other system.

Troubleshooting Air Conditioning Compressor Problems

Air conditioners are mechanical devices that are used to cool a room, entire house, or office building. The process of cooling involves utilizing chemicals that are converted from a gas to a liquid and then back to a gas again. One of the main parts of an air conditioner that is essential for cooling is the compressor. The compressor will squeeze the fluid and press the molecules tightly together in order to increase the temperature and energy. When the fluid travels out of the compressor and into the condenser, it has changed and is in the form of a high pressure gas. Because the compressor is an essential component of the air conditioner, it is important to make sure it functions properly.

Below are a number of tips to troubleshooting air conditioning compressor problems:

1. The first thing you should do is turn the air conditioner off and check for any wires and connections that look damaged. This can include wires that look worn, loose, or burned. You should also check the wire connections in the compressor terminal box for any signs of damage that will require professional repair.

2. If you find that the air conditioner is not providing enough of a cooling effect, you should check the temperature. The temperature should be set lower than the room temperature. You should take the temperature about 15 minutes after the air conditioner has been running. If the condenser fan and the compressor are both running and the cooling is weak, check the temperature drop. You do this by subtracting the air temperature entering the unit from the temperature of the air leaving the unit. If the temperature drop is extremely low, the unit's refrigerant may need to be charged.

3. If the condenser fan starts and works properly, but the compressor is not starting, the air conditioner may either be low on refrigerant, the compressor may be broken, or the compressor may be too hot.

4. It is important to check the fan motor which can affect the compressor. For instance, a fan motor may have poor windings or locks when it is running. There may also be bad components such as a worn thrust bearing, the motor may need to be replaced, and the rotor bars may be damaged. All of these problems can affect the compressor and affect the proper functioning of the air conditioner. If you find the compressor starts but the fan is not starting, the condenser fan motor may be causing the problem.

5. There are a number of reasons why a compressor may not start. They can include: problem with the capacitator, a blown fuse, motor overload protector is broken, compressor is locked up, burnt wiring, compressor trips the breaker and blows a fuse, internal damage within the compressor, compressor has non functioning valves, compressor has fallen off its mounts, unequal pressure flowing through valves, and the motor is grounded.

Without a properly running compressor, an air conditioner will not be able to function properly. It is important to be aware that the components of an air conditioner are very delicate and complex; therefore, if you are unsure why your air conditioner is not working, it is best to let a professional determine the cause and make the correct and accurate repair.

Air Conditioning Systems - Beware of Defective Units

A lot of people believe that an air conditioning unit can be a life saver, especially during those hot summer months. However, buying an A/C is not an easy task. A lot of companies sell defective or low quality products. You should be aware of this, to avoid spending lots of money on a unit that does not work correctly.

The first thing that should be taken into account is the warranty. All well-known brands offer a five year warranty with the purchase of your air conditioning system. Be suspicious if you are not offered this warranty; that is a hint of lack of quality. Most probably the A/C will malfunction after a few months of regular use, and you will not have coverage for it.

Also, you should be aware of old air conditioning units that are sold as new. A/C units used a coolant that has been forbidden by the Montreal Protocol. Even though they will not be able to manufacture air conditioning systems with this coolant as from next year, some companies are still selling them.

The problem about A/C units that use this coolant is not only that they are detrimental for the ozone layer, but also that they are becoming obsolete. Thus you will be paying as much money, or more, as you would pay for a modern unit but you will get an older one.

You also need to look out for uncertified air conditioning systems. If the company that sold you the A/C does not take care of the installment of the unit, then you are probably dealing with an uncertified air conditioning unit. Also, most people do not know that if they try to install the A/C themselves, they will void the warranty.

If you think that you can save a lot of money by installing the air conditioning unit yourself, think again. It may be cheaper at first, but if the unit malfunctions in the future, you will have to spend a lot of money to repair it, since the warranty is void. Always work with certified contractors and certified units.

In addition, most people do not know that air conditioning units need cleaning and maintenance twice a year. If you fail to maintain your A/C system correctly, it will probably malfunction, and the warranty will not apply, because it was your responsibility to hire someone to clean the unit.

Do not try to save money when it comes to A/C units. It is always better to work with well-known brands and with certified professionals to ensure the quality of the product you are purchasing. If you go for the cheaper air conditioning units, you will save some money at first, but you will end up paying a lot more later.

What Constitutes a Commercial Air Conditioning Unit?

A comfortable working environment is vital for everyone working. Because of that, commercial air conditioning units are commonly found in commercial establishments. They offer a cool environment for everyone in restaurants, outlets, hotels, hospitals, offices and other public locations. The design behind these air conditioning kinds is similar with the residential units. However, the size of the air conditioner is what separated home air conditioning units from the commercial ones. The fundamental elements are the interior unit, exterior unit as well as drainage system.

The interior unit has blowers, evaporator coil, air filters as well as control unit which is actually the thermostat. Apparently, commercial air conditioning units have multifaceted thermostats attached to a computer utilized for regulating temperatures based upon zones. The air filters are stored with blowers for the cleaning of air as the blowers pump cooled air through the vents and ducts. Meanwhile, the evaporator coil is the one that cools the air. Refrigerant is impelled into the system from the external unit. The coil dissipates the liquid which attracts the moisture and heat out of the air. The warmed vapor is drawn back out to the external systems.

The external unit has condenser coil, compressor and fan. The condenser coil obtains the heated refrigerant from the compressor, discharges the heat into the air and compresses the refrigerant into a liquid state to be impelled back in the course of the unit. The compressor works similarly to a pump for the system. The refrigerant is impelled back through the indoor units to draw heat and moisture out of the air by the evaporation of the refrigerant. The compressor disseminates the dissipated liquid from the interior constituents out to the condenser coil.

Lastly, drainage is one of the most essential features of an air conditioning unit. The procedure of cooling air, drawing moisture out of the air and the immediate extension and of the vapor makes significant quantities of concentration. While window air conditioners make use of a pan to gather and seize plenty of condensation, commercial air conditioning units utilize a multifaceted pipe systems originating from the interior units to the exterior of the structure. Strolling around a structure, you generally spot an inch pipes thrusting out of the wall dripping water. The pipe is the final outcome of the drainage system which requires to be cleaned sporadically to deter an upsurge of slush inside the pipe.

It is very important the workers feel comfortable while working even in a limited but crowded space. With the said air conditioners, workers will be able to work effectively and cater to clients agreeably. Moreover, potential clients would be discouraged to transact with a commercial establishment which is poorly ventilated. With a cool environment provided by these units, productivity of the company will be positively affected and clients properly attended. Clients who are waiting to be serviced will not feel like going out of the building soon because they feel comfortably seated in an area because of the cool and relaxing atmosphere they experience.

History of Air Conditioning

It is a wonderful thing to be able to flip a switch, and have an entire room cooled off through air conditioning. Portable room air conditioners make sense when you wish to cool certain parts of your home, office, or covered outdoor living spaces. Air conditioning is commonly found in buildings today, but it was not always the case throughout history.

Wealthy ancient Egyptian families could enjoy the cooling benefits brought from aqueduct water that traversed the insides of walls in buildings. Water was an expensive commodity in that hot region of the world, so only the rich could afford this luxury. Medieval Persians made use of wind towers and cisterns to cool their buildings. Wind would be captured in the wind tower, and it was then directed over the water in the open cistern, which would evaporate and cool the ambient temperature inside the dwelling.

Later on, the idea that liquefied ammonia, when it evaporated, could cool the air was thought up by British scientist Michael Faraday in 1820. In America in 1842, Dr. John Gorrie created a machine to make ice, and he used the ice to cool the air in his hospital in Florida.

Industry was the primary reason that air conditioners were created around the turn of the last century in the United States. Willis Haviland Carrier created the first electrical air conditioner in 1902, which was used to cool and dehumidify the air in a printing plant. The term "air conditioning" was coined by American Stuart W. Cramer in 1906, who came up with a way to add moisture to the air, which was crucial in his textile manufacturing mill.

Toxic gases were used to run the early air conditioners, but Thomas Midgley, Jr. created Freon refrigerant in 1928. Unfortunately, he did not know that Freon is bad for the ozone, and recently newer refrigerants have been developed that are safer for the environment.

Air conditioning is not only used today to make our homes and other buildings more comfortable. You will find air conditioning used in land, water and space vehicles. Air conditioning is used to also filter out bad particles in the air, such as in hospital operating rooms. If you have allergies or asthma, air conditioning can help remove the pollen, dander and dust that causes these conditions to flare up. The elderly can also be at risk if they are in a too-hot building, so air conditioning can be crucial for their well being. Some air conditioners are also dehumidifiers, which take the excess moisture out of the air to make you more comfortable in terms of your temperature. Today we are lucky that a great air conditioner is your answer for cooling comfort.

Air Conditioner Servicing

You need to understand that just as a car needs a wash and maintenance routine is similar to the air-conditioner. An air conditioner is also a machine that needs to be look after and services.

One of the best ways to make the air conditioner works like a new machine is by servicing the air conditioning. Why pay money for the electricity bills when your air con is not cool enough. All you need is to service and repair your air conditioner to solve the problem.

The unit coils should be cleaned, lubricating the fan motors, adjustments of belts, scrutinizing the compressor. These are the basic parts that should be cleaned and repaired so that the air conditioner will work well.

Start finding a company with professional service that you would need. Firstly, you need to consider and compare the price before hiring an air conditioning service company. Usually a new service company might lack of experience compare to older companies.

The way to achieve this is to service your air conditioning unit on a regularly with the assistance of a qualified and trained professional. There are different types of air conditioning units that you may consider and each has its own requirements for maintenance and servicing on a regular basis. Normal cleaning servicing should be done 3 months a time and chemical cleaning should be done at least 1 year a time. Whether you are using a wall mounted air conditioning unit or a ceiling unit, you can get help with the maintenance and servicing of your unit so that it will run properly and safely throughout.

Before your air con units problem get worst your should service it. You should maintain and service your air con unit regularly over time to prevent break downs and other problems over time. You are usually concerned regarding the warranty period after servicing the air conditioner.

Start finding a company with professional service that you would need. Firstly, you need to consider and compare the price before engaging an air conditioning company. Most of the time a new service company might lack of experience compare to those companies that has been around for some time.

It is important to find a qualified and professional air conditioning servicing company. Find a company who will take the time to listen to your wants and needs and help you find a solution to solve your air con problem.

Higher SEER Replacement Air Conditioning and Heat Pump Systems

It is not unusual to find package and split system air conditioning units in the Phoenix market that have been in use since the 1970's or 1980's. Because the average life expectancy of this type of HVAC equipment is around twelve to fifteen years, it is high time to retire some of these tired old workhorses.

An added bonus when you replace older air conditioning systems can be a significant increase in energy efficiency with an accompanying decrease in energy costs. With the amount of discussion we have been hearing in the news lately urging all of us to be green and save energy that is probably not going to be an unwelcome consequence.

Along with the good news of energy savings there are also some considerations that the competent air conditioning contractor will make you aware of when it is time to replace older equipment. I would like to share a few of them with you. First let's discuss split system heat pumps and then briefly cover things that are common to both package units and split systems.

As SEER (Seasonal Energy Efficiency Ratio) ratings for new air conditioning equipment have increased, HVAC industry practices that have been marginal in the past will no longer be acceptable. One of those unacceptable practices occurred whenever split system heat pump condensing units were replaced. The common practice in the past was to replace the heat pump condensing unit without first verifying that the new condensing unit was compatible with the old air handler. Several problems may arise whenever there is a mismatch between the condenser and the indoor air handler.

The first problem is the reduced efficiency that will result from replacing an older condensing unit without replacing the air handler at the same time. The reason for this is that air conditioning manufacturers do not rate current model heat pump condensing units with "antique" air handlers that are twenty years old. To achieve the published SEER, a heat pump condensing unit must be matched with an indoor air handler or fan coil unit that it has been rated with. In other words, if you install a new 13 SEER condensing unit with an old 8 or 9 SEER air handler, the actual efficiency achieved will be less than 13 SEER.

A second concern is there can be a mismatch of the internal coil volumes between an older air handler and a newer condensing unit. As minimum SEER mandates have required increased efficiencies over the years, manufacturers have made enhancements to both the indoor and outdoor coils in order to increase heat transfer efficiencies. Newer condensing units may have a different internal coil volume than some of their antique counterparts. If a new heat pump condensing unit is installed on an old air handler it may result in improper operation in either the heating or the cooling mode that will require seasonal refrigerant charge adjustments and unnecessarily increase service costs. It can also contribute to system reliability issues.

A third issue we are all facing is the difference in the characteristics of the refrigerants and compressor lubricants that are being used in the new systems. Since new air conditioning equipment using R22 refrigerant cannot be manufactured after 2010, the leading manufacturers have already started making newer high efficiency models utilizing R410a refrigerant and polyolester (POE) oils. The new refrigerant has properties that are very different than the R22 that has been the primary refrigerant for split system and package air conditioning systems for decades. In short, R410a is not compatible with the refrigerant flow control devices in the older air handlers that were designed for R22. Even if the flow control device could be changed, there may also be issues that could develop over time if the original mineral oils are not adequately cleaned from the system.

A fourth consideration is the refrigerant line size. The new high efficiency R22 condensing units often require larger diameter vapor lines than those that were originally installed with the old system. It may not be economically feasible to replace the vapor lines, so there will be losses in efficiency as a result of the increased refrigerant pressure drop in the smaller than recommended vapor line. One possible solution to resolve this issue would be to install a new R410a split system condensing unit and a new R410a air handler. Since R410a generally requires smaller vapor lines than R22, it would allow the use of the existing smaller vapor lines. Recommended procedures for removing residual mineral oil from the existing lines would have to be observed if the conversion to R410a was implemented.

When all of the above factors are taken into consideration, it becomes clearer that the very best course of action is to replace the indoor unit along with the heat pump condensing unit. While this is more expensive up front, it can help avoid significant downstream issues later.

Now that we have discussed issues unique to split system replacements, let's consider some factors that are common to both package units and split systems.

One issue that is common to both package units and split systems in higher SEER products is reduced cooling capacity at higher outdoor temperatures. This can be verified by checking manufacturer's ratings for the old air conditioning system and the new air conditioning system at outdoor temperatures above 100 degrees. The newer high efficiency systems generally tend to lose sensible cooling capacity more quickly than the lower efficiency units that were manufactured in the past. This is an important factor when evaluating an existing system that is doing only a marginal job of cooling the space it serves. A new system may have to be larger in capacity to produce the desired cooling effect at the higher outdoor temperatures we see in Arizona. There is a caveat with this also. You don't want the replacement system to be grossly oversized either or it will not perform as intended.

Another thing you will notice is that many of the newer systems have larger cabinets than the older style units. The larger cabinet size can become an issue in confined areas. Since minimum clearances must be maintained, a new system may not fit where the old system was installed. This consideration will be unique to each specific application, but you should be aware of it so you don't get an unpleasant surprise.

One last item to be aware of regarding both package or split system replacements is the significant difference in equipment costs. Higher efficiency comes with a higher price tag. Based on one leading manufacturer's pricing for a 5 ton package heat pump, the jump from 10 SEER to 13 SEER comes with more than a 30% differential in price. If it has been a while since you have replaced an air conditioning system, you may have "sticker shock". Material price increases along with the use of advanced technologies like variable speed compressors, dual compressors or unloading scroll compressors along with variable speed fan motors and enhanced control systems all contribute to higher equipment costs. Keeping this in mind when you are projecting future costs for HVAC equipment replacement can help you develop more accurate replacement budgets.

Energy Efficient Furnaces: Need of the Day

Our planet is full of places that experience extreme climatic conditions. There are regions that are extremely hot and there are some places that experience extreme cold particularly during winter. Surviving in such conditions is not easy and those who live in these areas have to go through a lot in order to survive there. Furnaces are one of the most popular ways of keeping a house warm during harsh winters. A wide variety of these is available in the market to choose from but there are some important factors that must be kept in mind while selecting one.

Among all the factors, the most important one perhaps is the energy consumption of the furnace. Earlier, this factor was not thought about seriously as the fuel and electricity prices were less. Times have changed and today everyone wishes to buy a furnace that is energy efficient so that heating costs can be kept under control. Most of the furnace manufacturers are offering energy efficient products that are also extremely affordable. These modern heating equipment save up to 30% more energy when compared to the conventional ones.

Other than having very low running cost, energy efficient heating systems are also good for the environment. A conventional type of furnace releases green house gases that are dangerous for the environment. Our environment has already suffered a lot during the last century and it is the responsibility of all of us to protect it. Purchasing an energy efficient heating furnace can surely be one good step that one can take towards a greener and safer world.

While looking for an effective and energy saving furnace, it would be better to go for a two stage furnace as it runs at 65% of its total capacity in the initial stage and goes to the second stage only when needed, thereby saving a lot of energy. This type of furnace is ideal for keeping a home comfortable and warm. Modulating furnaces are another good example of energy efficient home heating equipment. This type of a furnace provides heat output of 65 stages by the use of highly efficient motor that is electronically com mutated.

Modulating furnace is much quieter in comparison and also reduces the energy consumption by up to 80%. Another important benefit of a modulating furnace is that they offer superior humidity control when compared to other types of heating systems. It would be highly advisable that you go for an energy efficient home furnace as it will help in protecting the environment and in saving a lot of money for you in the long run.

How Hired Air Conditioning Can Help Create the Right Office Temperature

Anyone who has ever worked in an unbearably hot and stuffy office environment will know that tempers can often soar. According to a uSwtichForBUSINESS survey, three quarters of workers admit to arguing with colleagues over office temperature control. And when people are arguing, they are not working, being productive.

With the recession already placing huge pressure on UK businesses, the last thing office managers across the country need is for the fixed air con system at their workplace to develop a fault or breakdown during a hot spell.

Unfortunately, so many air conditioning systems at UK offices are old, prone to breaking down, or they simply do not have the capacity to provide the required amounts of cool air (or extra boosts of it) when needed. Hired air conditioning is the answer. The good news for office managers is that renting mobile air con units from an air con specialist is easy, surprisingly affordable, and units can be delivered quickly.

Influences on Office Temperature

When it comes to office temperature, two main influences are at work:

1. An external (climatic) influence - the weather outside, and the heat (or cold) generated by equipment, lighting and from the office staff themselves

And an:

2. Internal (metabolic) influence - the human body's core temperature level. This varies from day to day, and at different times throughout the day, but only a small fluctuation tends to occur (usually no more than 1.0繙C).

Note: Humans are homeothermic (warm-blooded). Our body temperature is regulated at about 37繙C +/- 1繙C. The thermoregulatory centre in the hypothalamus plays an active role in keeping body temperature in the normal range.

Gender, fat content, clothing, metabolism... all these factors can play a part in getting office workers all hot and bothered, in making them lethargic, tired and short tempered. The obvious solution is to turn up the air con. But this can prove counter-productive, as, if it is not a modern system, workers can then find themselves shivering at their workstations - unable to perform as efficiently in an environment that is simply too cold, reports Smart Planet.

The solution is to turn to an air con rental specialist: a company experienced in renting air con units to offices of all sizes and layouts. They will know which units are most suitable, and the ones they supply will be state-of-the-art, with modern controls. Conditions for staff at workplaces across the UK have come a long way since the Industrial Revolution (1750 to 1850), when working conditions were unregulated and people were expected to work 12+ hour days, sometimes six days per week, often in sweltering heat. Now workplace temperatures must meet legal requirements - specific guidelines are in place.

The regulatory requirements for workplace temperatures are set by the Workplace (Health, Safety and Welfare) Regulations 1992. Under the regulations it states that the temperature of indoor workplaces should be "reasonable". The Approved Code of Practice defines a reasonable

temperature indoors as being normally at least 16簞C unless the work involves severe physical effort in which case the temperature should be at least 13簞C, states the Health & Safety Executive website.

In reality, the 'ideal' temperature is almost impossible to provide in most offices: one person's too hot often being another's too cold. Most office managers therefore try to meet the needs of the majority of their office staff, during the working day. A happy workforce is a productive workforce, as the saying goes. And so a comfortable working atmosphere for employees is something employers should always strive to create.

UK office managers who are best placed to do this will have wisely taken the precaution of formulating a contingency plan with the help of a specialist in air conditioning hire (a site survey will be part of the plan). The office manager can enjoy peace of mind knowing, should they ever require air con units in a hurry, their chosen air con specialist (who offers a 24/7, year-round, emergency call-out service) will respond immediately to their urgent call.

Go Green With Eco Friendly Central Air Conditioning

All of us should understand our social responsibilities. Earlier, we have not bestowed enough attention on our environment and that is why our planet faces the threats of pollution and ecological imbalances. We should therefore take steps to protect our environment and also our planet. One of the best ways is to go green with eco friendly central air conditioning.

We should keep the following few points in mind if we decide to move in this direction.

• Nowadays, we get environment-friendly air conditioners. So, we should stop using normal units and switch to these environment-friendly central air conditioning units. We should choose air conditioners with good SEER ratings. The governments have also fixed specific Seasonal Energy Efficiency Ratio standards or SEER standards for ensuring environmental protection. So, we should go in for Energy Star certified air conditioners with the SEER standards fixed by the government. If we switch to these air conditioning units, the emissions from them will be much less.


• Another advantage from choosing such eco-friendly central air conditioning units is that our energy bills will also come down by more than 30 per cent. In other words, we will be protecting the environment by using less energy also.


• We should get our central air conditionier unit installed by a competent contractor. The point that is being emphasized here is that wrong installation may also lead to excessive energy consumption. Wrong installation may not only increase our energy bills but may lead to wastage of this precious resource called 'energy'.


• We should not ignore the importance of proper insulation of our home because if the insulation is defective, our air conditioners will have to over-work and this may also result in energy wastage.


• If we take steps to have more plants and trees around our home, our central air conditioner unit will cool the building more quickly. So, we will be saving a lot on energy usage.


• If we set the thermostat of our unit one or two degrees higher, we will be using less energy. This may also help us in saving power. Likewise, when we go out, we should not turn off the central air conditioning unit. We should set the thermostat a few degrees above the normal temperature. So, when we return and re-set the thermostat, the unit will not take much time to cool our home.


• We should clean the filters of our central air conditioning unit periodically. Otherwise, they will gather dust and the air that comes out of the unit may not be clean and pure. So, to keep the environment clean, we should change the filters of our unit once a month.


• The place where your air conditioner plant is installed at your home should be neat and tidy so that dust and debris do not enter the system. The place should be cool also. These small steps will go a long way in using less energy.

If we follow these steps, we can proudly say that we have gone green with our eco friendly air conditioning system.

Make Your Air Conditioner Work Again With Air Con Regas

For a whole lot of people, nothing is much worse than traveling in a hot car amidst the summer. However, what will happen when car's air conditioning is not working at all? You may not only feel miserable, you would wonder as to how this thing could be again fixed to work with perfection. There could be numerous reasons due to which air conditioning of vehicle will not work with perfection.

When the levels of refrigerants in your vehicle's air conditioning mechanism become low, it makes the unit incapable to generate cool air. There could be few reasons of this level being low, like breaking of the O ring or leakage in the compressor. There can be a leak in the evaporator or the condenser lines. The air conditioner in such situations usually shuts down to prevent compressor from getting damaged due to lack of the refrigerant.

The recharging of the refrigerant (also called air con regas) is usually undertaken only after the leak is detected and repaired. If you possess an old vehicle, then you may be required to perform air con regas as the refrigerant has become incapable to generate as much cool air as it earlier use to

The problem with the compressor is most common in the air conditioning systems of the vehicles. The compressor is central hub of all the cooling mechanism in your vehicle. In many cases the clutch of the compressor can not engage, which simply means that unit would not be able to perform any cooling. This is usually signified by some loud noises when air is turned on. This would simply mean that replacement needs to be done and no repair is possible.

Lack of any lubrication could also result in the failure of the compressor. Low oil or coolant could be the reason. Sometimes using wrong type of oil or failure to add any oil could lead to the failure of the compressor.

There are two kinds of compressor units for the air conditioners. The R-134a which needs POE oil and R-12 which makes use of mineral oil. If you someway add wrong oil in the unit, it will not work properly and would need to be replaced.

These are just some reasons for the failure of air conditioning unit. Never ever try to repair the unit yourself and always rely on a qualified technician. If you require just air con regas, then you can hit the road back in shortest time with a comfortable and cooler car!

5 Tips for Hiring a Heating and Cooling Contractor

The sizzling temperatures of summer and the harsh chill of winter can seem even worse if your air conditioning and heating system suddenly need repair or replacement. Who wants the added stress of searching for a reliable heating and air conditioning contractor when you need to solve the problem fast? Here are 5 tips for hiring an air conditioning repair contractor that will make the job a little easier.

1. Do some research
2. Explore references and reviews
3. Look for ENERGY STAR
4. Expect a home evaluation
5. Get written estimates, in ink

Step one involves and little research. Before you even call the contractor, know the model of your current system and its maintenance history. Also, to help the contractors better understand your needs, make note of any uncomfortable rooms. When you are ready to make the call understand that in most states, air conditioning repair contractors are required to obtain a certification or license to practice. The technicians that work for these contractors also need to complete specialized training in order to repair or replace the advanced systems in today's homes. So before securing potential contractors in your home, be sure to ask them to verify their credentials.

Next you will need to explore references and reviews. Ask contractors for customer references and actually call them. Ask about the contractors installation, or service performance and if the job was completed on time and within budget. Researching the company's reviews online is also another great way to confirm reliable reference information. These reviews can be found on websites like Google Places and Angie's List.

Now that you have narrowed down the list of qualified contractors, it is time to look for ENERGY STAR qualified products. These products, which have to meet strict energy efficiency guidelines set by the U.S. Environmental Protection Agency, deliver significant long term energy savings. The contractor that you choose should be able to show you what you could save with ENERGY STAR heating and cooling equipment.

It is now time for your home evaluation. Do not let a contractor give you an estimate over the phone. Once the contractor is in your home, they should spend a good amount of time inspecting your current system and home. Bigger is not always better so if you need a new heating a cooling system, the contractor should size the heating system based on the size of your house, windows, and level of insulation.

Once the evaluation is complete, the contractors should be giving you an estimate that should outline the equipment to be installed and the cost, including labor. Be sure to compare cost, energy efficiency, and warranties. Remember that the lowest price may not always be the best deal if it's not the most efficient because your energy costs could be higher. When you finally choose the contractor, sign the estimate before the work gets started. Specifying costs, model numbers and warranty information prior to the work will protect you from any unforeseen problems.

Now that you understand how to find a reliable heating and air conditioning contractor, you are on your way to hiring the contractor that can create a cooling and heating system that works for you, and your budget.

How to Choose an Air Conditioning System - HVAC Guide

If you go air conditioning shopping, you will realize there are quite a few different systems out there. So how do you know which air conditioning system to choose? It can be a little daunting to say the least. Below is the main types of air conditioners available, with a description of the advantages and disadvantages of each type.

1. Box Or Window Units - Box or window units are the cheaper air conditioning units sometimes found in motels and apartments. They are good at air conditioning one room only. They are a cheap and easily available option. Sometimes these box units come in cooling only, whilst others come in both cooling and heating forms. The main problems with these units are that they can be a little noisy and they are a little ugly looking. They will also only air condition the room they are located in.

2. Ductless Or Wall Splits - Wall split units look like a long thin box that sits on your wall. Some models are available as cooling only devices, but the majority of models now days come in both cooling and heating options. Like window units, they can only be relied upon to air condition the room they are located in. They are however are good cheap option although they are a little more expensive than a window unit. They do come in brand names as well as stylish modern options that are available.

3. Ducted Evaporative - Ducted evaporative systems are a good cheap way to cool your entire home. They are often also used in factories as they are robust and good at cooling large areas. Evaporative coolers are also relatively cheap to install and to run. The main disadvantages with evaporative coolers is that they do not offer any heating, they bring moisture into your home and they will not work in humid weather.

4. Central/Ducted Reverse Cycle Air Conditioning -Central air conditioning or reverse cycle ducted is by far the best option available. It will offer both cooling and heating, and can be set to a certain temperature. These systems will also work year round to provide comfort. The disadvantages of these systems are that they can usually only heat/cool about half your home at any one time. They are generally not designed to run a whole house at once. They are also quite expensive to both install and to run.

5. Portable Air Conditioner/Heater - Portable air conditioners are the type you see sold in stores. The advantage of these systems are that they are cheap and portable. The disadvantages are that these systems are costly to run and will do little to actually heat and cool your home, and therefore are best avoided.

If you work out your needs you should be able to then pick an appropriate air conditioner from the list above. This list will ensure you are getting the best system to suit your lifestyle.

Casement Air Conditioner Guide

A casement air conditioner is a window unit designed for narrow windows that swing outwards or slide across rather than those others that slide up and down. It is usually good for a small room to large one that measures up to 500 square feet. This kind of air conditioner is a contained unit and all the mechanism is housed in one large compartment.

The slider or casement style has the capacity of 8,000 and 12,000-BTU cooling a room. Recent units have the energy-efficiency ratings of nine or higher that make you save more energy and sleep modes than the old units, saving a big bunk over your electric bill.

It promises you low cost and doesn't oblige you much fuss over wiring. It is also easy to install. But the downside on this kind of unit is that the unit must be removed from time to time especially during winter season as it makes the machine a little bit drafty.

A lot of casement air conditioner nowadays comes with electric control over the older units. It allows you much accuracy over the temperature setting, also, new mass of features are also installed not offered from previous analog units. It can also be efficient to those who are lazy enough to stand and change the temperature with its remote control capabilities.

Aside from the full function remote control, another feature is the fully variable speed fan that allows a better temperature control than the old 2-4 speed fans. Another thing to be look upon is the four-way air direction that cools up the room evenly and not just the area adjacent to the unit.

Casement units are best utilize on one rooms but be sure to check that the size of the rooms meet up with the capacity of the unit. If the unit is too big, it will cool the room quickly and will switch on and off constantly, using more energy than necessary. 

Not that it can only lead a damaged unit in the end but it will also make the air in the room damp and clammy because the air conditioner will not be able to remove the excess humidity in the room. But if the room is too small, the unit will continually run without really cooling the room. That is why it is very important to measure the room that will suit the casement air conditioner of your choice.

There is also some casement air conditioner cooling that can heat up the room, which of course, requires a much expensive price. If you have a one large room to cool up, better have this unit since it is cheaper than getting a central air conditioner unit in terms of price and electric billing. There are wide variety manufacturing company that does this kind of unit such as FrigidAire, Freidrich, Kenmore, Haeir, LG and GE. Look for units with anti microbial technology that uses mesh filters. These filters keep the air in your room free from particles and microbes, which is the main concern for those people who have high allergy tendencies.

13 Not So Well Know Inventors and Their Inventions

To become an inventor you do not necessarily need to be an expert in your field or even be scientifically trained. In fact most inventors are just regular people that had an idea about how to make something better or easier to use. What every single inventor does have in common are two basic qualities, an inquisitive nature and the ability to be a logical thinker.

To this day no one knows the exact origins of arguably the most important invention in all of human civilization, the wheel, but it is easy to imagine that the person responsible for inventing the wheel was a very inquisitive and logically thinking individual.

One of the most well known inventors of modern history is Thomas Edison, whose name is linked to more than 1,000 different patents. The following list contains some of the not so well known inventors and their inventions:

1) Alfred J. Gross (1918-2000) - Gross invented the first walkie-talkie, CB radio, the telephone pager and the cordless telephone. Sadly he didn't make any money from his inventions.

2) Benjamin Banneker (1731-1806) - Banneker was an African American astronomer, mathematician, surveyor, and farmer who published the first Farmers' Almanac from 1792 through 1797.

3) Dr. Jacques Edwin Brandenberger (1872-1954) - In 1908, Dr. Brandenberger, a Swiss textile engineer, invented Cellophane.

4) Ern?' Rubik (1944- ) - It may come as no surprise that in 1974 Rubik invented the 3-D mechanical puzzle called the Rubik's Cube and has been frustrating generations of people every since.

5) Harry Wasylyk (1925- ) - A Canadian inventor from Winnipeg, Wasylyk invented the disposable green garbage bag in 1950.

6) Josephine Cochran (1839-1913) - Cochran invented the first practical mechanical dishwasher in 1886.

7) Mary Anderson (1866-1953) - At the age of 37 Mary Anderson was granted her first patent for an automatic car window-cleaning device called the windshield wiper.

8) Percy LeBaron Spencer (1894-1970) - In 1945, while standing in front of an operating magnetron, a chocolate bar in Spencer's pocket melted, which resulted in him coming up with the idea to invent the microwave oven. He never did gain any super powers like the Incredible Hulk or Spider Man did.

9) Richard Gurley Drew (1899-1980) - Drew was an American inventor who worked for 3M where he invented Scotch Tape. The Scotch part of name was originally used as a derogative as the first prototype only had adhesive along its edges and not in the middle, but the name stuck. Pun totally intended.

10) Scott Elliott Fahlman (1948- ) - Fahlman is credited with inventing the first smiley emoticon in 1982, which he thought would help people distinguish serious posts from jokes.

11) Walter Hunt (1796-1859) - Hunt was a New York mechanic that invented the sewing machine in 1833 and the safety pin in 1849. I take it Hunt was pretty rough on his clothes.

12) Ruth Handler (1916-2002) - Handler originally invented the Barbie Doll in 1959 for her daughter Barbara.

13) Willis Carrier (1876-1950) - Carrier is known as the man who invented modern air conditioning.

As you can see, inventors come in all shapes, sizes and ages. There are times when an individual or even a company will come up with a brilliant idea for a product or a service but they lack the understanding or knowledge on how to take the idea to the next level. It is at these moments when the ability to find an inventor for your idea is crucial. Thankfully there are numerous resources available on the Internet to help connect you with inventors.

4 Tips About Cat's Ringworm and Your Children

Did you know that your cat's ringworm is not a real honest to goodness worm? That's right cat lovers. Your cat isn't infected with a worm, but a fungus. If you're into big names the medical term is dermatophytosis. Let's keep it simple and use ringworm throughout this article. This article will give you 4 tips about your feline's ringworm.

1, Your Cats Ringworm And Your Children.

Ringworm is extremely contagious. Your cat can pass it on to your children, you and other animals. You or the kids can infect someone else or another pet. Not only can it be passed on to others, it can be spread to other parts of your body or the bodies of your child or pet.

It is imperative that you have your animal treated as soon as possible. In addition, if your child or you, are infected you should consult with your family physician. In most cases if the fungus is treated properly you will start to see improvement within the first few days.

Within 7 to 10 days there should be a complete recovery from the fungus. However, the doctor or your vet may recommend continued treatment for up to 2 or 3 weeks to make sure there is no recurrence of the infection.

2. How Can I Tell If My Cat Has Ringworm?

You should understand that in some cases there will be no outer signs of the fungus infection on some cats. However, your cat can still be a carrier and infect you, your children and your other pets. If you suspect your animal is a carrier call your vet.

If this is the case how can your cat or you be a carrier? Actually that is pretty simple to explain. The fungus can be anywhere. It can be in the grass, on the sidewalk, flowerbeds and can even be in the air ducts of your home.

During the incubation period of the fungus it develops spores, which can be picked up by your pet or you. When your animal or you move about the spores will drop off into the carpet, furniture, clothing, and bedding. Therefore the spores then can be picked up by your heating and air conditioning unit to be circulated through out your home.

3. How You Can Identify The Cats Ringworm.

First let's talk about how ringworm can be spotted on your favorite feline. In most cases you will spot the fungus on the head, around the ears or eyes or on the paws and nails of your cat.

Generally this is demonstrated by the circles of hair loss or flaky red skin in a circular form. You may notice your kitty scratching and licking the wounded area. Furthermore you may well see an increase in broken hairs and patches of flakey skin on the pets bedding, the carpeting, your clothing or your furniture.

One area you need to think about checking closely is the cat's paws. There is a variety of the fungus, which seems to concentrate in the pads of the paws or under the nail beds of your pet.

Second let's talk about how to spot it on your child's body or on your self. Very likely you will have an itchy sensation, in the area, where the fungus has penetrated the skin. As it continues to fester you will see a red circular pattern on the infected area. You may also observe dead looking skin flakes. Again you should contact your doctor in the event you see an outbreak on you or your child.

4. What Are The Treatments For Your Cats Ringworm?

At last there is some good news. Ringworm is easily treated by your vet and you. In the majority of the cases the vet may prescribe an antifungal cream and shampoo. It's usually a matter of shampooing your favorite pet every other day and applying the cream as directed by the vet.

Surprisingly enough your personal physician will recommend a very similar treatment for you or your child. It's possible they may prescribe and antifungal soap and cream. However, the doctor may just tell you to pick up the soap and cream across the counter at your local discount store or drugstore.

In conclusion you, your children and your wonderful pet can be infected by cats ringworm. But it is easily treated and cured with the proper medication.

Disclaimer: This article is not intended for any type of medical advice for you or your pet. It is intended for information purposes only. Always consult your personal doctor and your pet's vet in case of a medical problem.

A Few Simple Tips To Remember To Make A Bath More Relaxing

This article will hopefully help you to make a guests visit to your home feel more welcoming. We will look at ways in which we can provide your guests with a relaxing bath whilst visiting or one that they can take home with them when they leave. Also in this article we will provide advice on how to make a guest bathroom more welcoming and to ensure that they feel right at home when visiting you.

Firstly let us look at ways of pampering your guests and how to ensure that they can have a relaxing bath which is made for ingredients that you have in your kitchen. First of all why not start with plain rock salt you can either leave it in the size it is (cleanses a person's skin more effectively) or else you can grind it down.

Then to make the salt that little more special there are any number of herbs that can be added to it such as lavender, lemongrass or chamomile or your could add some dried flowers instead (roses, daisies). What you need to do is mix 1 cup of rock salt (or choose Epsom Salts instead) and to this add the ingredients that you have decided upon (remember the more of the ingredient you add to the salt the more fragrant the bath mixture will be. In fact why not make a visit to your local health food store and see what organic herbs or flowers they have that can be used in order to make the bath even more relaxing.

Another tip in order to make a bath more relaxing for your guests it to add a small amount of your favourite perfume or essential oil (mix this with carrier oil). Not only will this add more depth to the smell that the dried flowers you have used and will be released when added to the hot bath water. Once mixed put into either a pretty jar or bottle which can be used as a decoration in the guest bathroom.

Another way of creating a relaxing bath for any guests you have is to place the fragrant herbs or flowers into a muslin or dye free cloth bag and can then be placed into the bath like a tea bag or if you want just place it in the drawers of the guests room. Remember do not use a bag that has been dyed or else this will leak out into the bath and may well stain the bath as well.

Another method is to use unfragranced oils (however you will need more time to produce this). Place the oil in to a pretty jar or bottle then add dried herbs or flowers (don't forget to pick those that not only look pretty but smell good as well). Place a cork in bottle or a top on the jar and allow them to stand in a cool area for a few weeks. As time goes by the fragrance of the herbs or flowers will pervade into oil thus providing another way of giving your guests a relaxing bath.

When decorating the guest's bathroom prior to their visits it's important to remember that the little things will matter the most to them. Think about things that any guest may need such as a rich moisturizing cream or lotion, a mirror, shampoo and conditioner, comb, toothbrush and toothpaste. It might also be worthwhile getting a lint brush as well for their clothes.

Also when looking to decorate a guest bathroom it is important to consider that you want to make your guest feel special. By placing a nice basket with all the items you have collected along with any instructions on how to make a relaxing bath will make your guests feeling extra special (almost like royalty).

Why not place plenty of towels along with a bathrobe if you can in the bathroom and try and spend time each day keeping the guest bathroom clean (even if it just giving a wipe down each day).

So hopefully now that you have learned how to not only produce a relaxing bath but how to decorate a bathroom to make your guests feeling more special then you should be prepared for any visitors that you have (even your in-laws).

HVAC Water Leak - Unit Icing, a Common Cause

This time of year in Southern California brings that fantastically mild weather which gets everyone out of their houses and into the cool sunshine. These are the days which make Los Angeles the place everyone wants to be. On such days I like to go hiking in the San Gabriel Mountains outside Pasadena, or drive down to Orange County to do a little shopping, or perhaps enjoy a day at the Getty Museum in Santa Monica, gazing out over West LA and Hollywood.

I would enjoy these days more if it weren't for those pesky emergency weekend calls from commercial clients. That is because, within the HVACR industry, this is also the time of year for the dreaded water leak call. Water leaks in air conditioning equipment typically take two forms: the first form is usually due to an overflowing drain pan which is typically caused by a plugged drain line. But it's the second form which we see the most this time of year. The call typically comes in as follows, "My air conditioner was working great yesterday now it is blowing hot air and dripping water on the sales floor". This description is the telltale sign of a unit "icing over".

Air conditioners have a condenser coil and an evaporator coil. The purpose of the evaporator coil is to extract heat from a space. The purpose of the condenser coil is to expel that heat to the atmosphere. Between the two coils a refrigerant transports that heat. Air conditioner systems are designed to exacting specifications and are delicately balanced between evaporator and condenser; the coils have to be the right size, the air flow has to be in the right amounts, the refrigerant has to be charged to specific amounts. If any part of the system gets off balance the unit operates inefficiently, or sometimes, too efficiently.

This can be the case in a fall season problem like I mentioned above. Most units these days have digital programmable thermostats. Digital programmable thermostats are meant to save energy by turning units off during times when it is expected that a building would not be occupied. They also protect units from operating outside their ideal parameters. But there are times when you want to override the program, say perhaps because you are staying late at work one night and you want one or more units to run while you are still there. This typically isn't a problem but it can become one if you override the thermostat to run the unit continuously 24/7. It's not unusual for this to happen in commercial air conditioning applications such as big box retail stores. The manager or an employee overrides the program and then forgets that they have done so. The unit is left to run continuously.

As mentioned above, to run properly, an air conditioner needs to have all its loads in balance. When a unit runs at night there are very few loads. The space inside is relatively cool because the lights are off, the people are gone, and the computers are off. So the evaporator doesn't have to work very hard to remove heat because there is less heat to remove. Outside it is very cool so the condenser is also finding it very easy to expel heat to the atmosphere. So the unit is running very efficiently, in fact too efficiently. With so little load, the evaporator coil gets colder, so cold that it can often drop below freezing. Cold air cannot hold as much moisture as warm air so it is typical for evaporator coils to condense water out of the air and when an evaporator coil drops below freezing that evaporated water starts to freeze. Essentially the evaporator coil becomes an ice machine! Ice will continue to build as long as the thermostat is on. Eventually the ice block becomes so large that air can no longer pass through the evaporator coil properly. With no air blowing across the evaporator coil the unit can only blow outside air into the space. Morning comes and it warms up outside, now the unit is blowing warm outside air, the ice starts the melt, and presto! You have a water leak and a unit blowing warm air.

The point of the story is to explain to users that HVACR equipment, unfortunately, are still not fool proof. That can be made more reliable at an added expense, for example with a fan cycling switch, but most units do not come with these devices standard. Better for a user to understand the proper use of their thermostat. The two rules to follow are:

1. Never leave your equipment running all night long if no one will be occupying the space. (The one exception would be computer rooms because the heat load is generated all night long.)

2. Never turn your thermostat below 68 degrees (even during the day). This will not produce colder supply air it will only insure that the unit runs for a longer period of time. If you turn the set point too low, the room may never reach that temperature and so the unit will run 24/7.

Follow these two rules and you will avoid icing you unit up in most cases. The only other situation where HVACR units ice up involve proper maintenance. That I will save for another article.

The Many Benefits of Air Conditioning

There are some of us that cannot get a good night's sleep unless the room is quite cool. Even if we are on a beautiful vacation next to the beach the summer heat and humidity can make even such a peaceful experience annoying and painful. This is a bit different in the mountains as the higher elevation makes the temperatures cooler but sometimes even that is not enough.

As summer comes along, especially in the southern states we start off around June being productive and doing a lot of activities outside. This does not last very long though, and by around the middle of July we have had enough and just want to stay inside and cool of in front of the air conditioner. This might be a reason why some countries such as Spain have an all day fiesta as they know from experience that working during a hot day is simply not the brightest of ideas.

This actually is very important in the workplace. Some people say that being in cooler air makes the skin fairer and I think there were a few experiments which have proven this to be true. I mean, we all know what olden folks that love tanning too much look like. The productivity definitely takes a hit if the central cooling system breaks and the employees tend to start working much slower and taking frequent breaks to get something cold from the vending machine. At least the vendor is happy since their business picked up, but I do not think that the employer cares much about that. It is very important to have the right type of air conditioner as they are not all created equal and some companies provide much better customer service support than others. This could make a difference between having no cool air for a day and not having it for a week or more. I have heard of instances where the service repairmen took so long that the manager actually had to find a local repair service to fix the problem.

Imagine if cars did not have an air conditioning system and how that would change the way that we move around in the heat. Even with the current technology sometimes there are problems, and it still takes a while to get the car to a comfortable temperature on a very sunny day.

Some of the companies take it too far and have the workspace ending up being too cold. This is also bad as the employees start feeling numb and getting sick. When this happens in a house the electric bill tends to get very high. Also not everyone in the same house likes having the same temperature. In Japan they use a split system air conditioning device which is really smart and energy efficient. It allows for each room to be dialed in differently and the ones that are not used do not have to be cooled at all. Think about the night, as it is the one time where we usually want the bedroom cooler but are not occupying the rest of the home. The ability of having such a tremendous saving of energy for eight hours every single day really adds up. It is not yet very popular in the states but some of the smarter distributors do offer it as well.

Overall, air conditioning is very important to our culture but the type that we buy really depends on our needs. After all we are the only species on earth who love having a warm drink in a cold room on a hot summer day.

Facts You Should Know About a Split Air Conditioner Before You Go Out to Buy One

Though air conditioning was considered a luxury many decades ago, they are basic requirement in all homes these days.

The AC functions in a same way as the refrigerator. Its main function is to sucks out the room heat by making use of a refrigeration process to make the room cooler.

The split ACs are being most commonly used by the people nowadays. In this setup the compressor unit is installed outside the residence and is further connected to the blower units in the house through the refrigerant pipes. There is negligible noise generation in these type of units.

You should be aware about the following facts about the split AC:

The cooling capacity of an air conditioner is calculated by its tonnage. Split ACs are available in capacities of 0.5 tons, 0.75 tons, 1.5 tons and 2 tons. Cooling power of an air con is calculated in terms of BTU (British thermal unit) and one ton air conditioner has a cooling capacity of 12000 BTU an hour.

Some facts about the split air con which buyers should be aware of are:

Tonnage of split air conditioner - The split air conditioners size depends upon the area which it has to cool. Larger split air conditioner are required for a big area.

Dual zone or triple zone split conditioners - If your residence has many rooms then you should go for dual zone or triple zone split ACs. It means total number of air handlers required to cool different rooms.

Tubing - The tubing is bought separately from the market and is essential for the proper operation of the split AC. This tube is used to transport the cool air from the external unit to the indoor unit.

You must purchase a split air conditioner from a reputed company as it would be more durable and cost you less for its maintenance. It would also consume less electricity for giving an efficient cooling for years to come.

You must purchase a split AC from a reputed company as it would be more durable and cost you less for its maintenance. It would also consume less electricity for giving an efficient cooling for years to come.

Trane Air Conditioning

If you are looking for a quality air conditioner, then Trane air conditioning units are one of the leaders in their field. They manufacture units for residential and commercial use. James Trane is the founder of the company. He came to the United States from Norway in 1864. A plumber by trade, he opened his own store in 1885 in Wisconsin. From the very beginning, he was known for providing good service and quality.

At the beginning, the company was not involved in Trane air conditioning units. They kept the plumbing aspect of the business open until around 1915 when they concentrated on heating products such as low-pressure steam heating units. James' son Reuben who was a mechanical engineer was heavily involved in the progress of the company. During World War II, the company was involved with the US Navy in providing the technology to keep pace with the German war ships. The main component they assisted with was providing the navy ships with a heat exchanger, which proved to be a very important advancement in naval engineering.

During the late fifty's, Trane air conditioning units hit the residential market. This was a major addition to their product line. During the sixties, the company expanded their operation around the world. The majority of their business focused on the large commercial and industrial units.

Every Trane air conditioning unit is manufactured with high quality parts just as its founder James Trane would have expected. Window air conditioners are almost a necessity in some parts of the world now. Many people could not live without them. This increased usage and dependence on these machines is very taxing to the electrical grid. Many of the larger cities have rolling blackouts during the hot summer months to conserve power. Air conditioners have a huge impact on the system.

Most major department stores and big box home centers sell Trane air conditioning units along with many other brands. When searching for a good unit, make sure you gather as much information as possible on the machines within your budget. A good warranty is a necessity.

The Importance Of Regular Commercial Air Conditioning Maintenance

Heating, ventilation and air conditioning (HVAC) systems are an essential part of any industrial, commercial or retail space. Commercial systems often use components and custom installations that fit the needs of a particular building. One of the most important parts of keeping these systems running is regular maintenance from professionals who have experience providing commercial air conditioning service. There are several clear reasons why this type of service is needed at least once every year.

Energy Efficiency

Commercial air conditioning systems are designed to work for long periods of time every day of the year. They are durable and resilient. Despite the commercial quality of the system, however, many problems such as vibrations, unexpected debris in the intake and power surges can still damage the equipment. This causes small inefficiencies that multiply into increased energy consumption over the course of a single season or year. Regular maintenance will ensure that the air conditioning system is working efficiently at all times.

Dirt And Debris

Commercial spaces are regularly home to more individuals than private spaces like a home. The constant opening of doors and foot traffic causes a large amount of dust and debris to fly into the air. The filter in the system will remove a significant percentage of this debris. Unfortunately, they do not remove everything. They can also become clogged forcing dust into the system and across the components. This forms a layer of dirt that will insulate key wires and parts causing the air conditioner to malfunction over time. Some buildings could even develop problems with harmful mold or low air quality because of the buildup of contaminants. A commercial air conditioning service will be able to clean the entire system increasing air quality and extending the life of the parts.

Customer And Employee Satisfaction

Spaces that use commercial air conditioners are home to customers and employees. The temperature in any room or building rises quickly when occupied by many people. Retail storefronts need good air conditioning in order to keep customers happy and shopping. Offices or other spaces require air conditioning to keep employees productive. Regular maintenance from a professional repair service will ensure that the system does not breakdown or work so inefficiently that the area becomes uncomfortable. This is very important since many systems are working for more than half the day counteracting the heat generated by human bodies and essential equipment.

Avoid Future Repairs

Commercial air conditioning service is essential because it helps to prevent costly future repairs. Emergencies could occur at any time because of an unforeseen event. An air conditioner that is in poor condition could become damaged beyond repair. Similarly, problems that are easily repaired during a normal inspection could grow into dangerous and irreparable issues if left unaddressed. Problems with compressors, evaporator coils and fans might even expand outside of the system and could cause severe damage to the surrounding room or building. The cost of replacing an entire commercial air conditioning system is far more than the cost of maintaining a maintenance contract with trained professionals.