Tuesday, April 30, 2013

Solar Air Conditioning - What Are the Advantages


Nowadays, solar energy is used for various purposes. The advancement in science has brought changes in the life of a man. There are several impossible things, which have now became possible due to the advancement in science. Among various types of inventions that are run by the solar energy, one of the marvelous things is the solar air conditioners. Although it looks very odd, that how the solar system or energy could make our houses cool, however; this is now a fact that the solar energy has been captured by various means, and it is used for different purposes.

The solar air conditioning can be done easily where there is sunlight in abundance. These are the areas where the room temperature remains higher, and hence air conditioning is necessary to cool down the environment. These air conditioners are ideal for these places since the air conditioners will have abundant sunlight for the generation of energy, and in addition these air conditioners provide the cost-effective solution for lowering down the room temperature.

There are several forms of solar cooling units. These work either actively or passively. The active forms of these cooling systems are further divided into two sub-categories, like solar absorption air conditioner and solar desiccant units. The thermal collectors are present in solar absorption units which absorb the solar heat, and use it for separating the mixture of absorbent fluid and the refrigerant. After separation, the refrigerant is condensed and then evaporated. The whole process generates cool air which brings the room temperature at lower desired level.

This system possesses solar chimneys with a tower on the south of the house. The top end of the tower is made glazed, so that the appropriate amount of heat from the sun could be absorbed and used for running the air conditioner. The warm air inside the room creates a vacuum in this system which takes up the air and sends to the water pipes for cooling. Once the air cools down, it decreases the room temperature.

How To Stop Your Air Conditioner From Freezing Up


Scenario:

My air conditioner is freezing up almost daily. I've tried resetting the temperature and nothing seems to work. What would you suggest I to to stop my air conditioner from freezing?

Solution:

There are several factors that could be the cause. The four main reasons for air conditioner freeze ups:

Refrigerant charge

Outdoor temperature

Insufficient air flow

Defective blower

You may have a low refrigerant charge which can cause the air conditioner to freeze up. The system needs to be charged correctly to enable it to work properly. You may have a leak in the refrigerant lines.

If the lines have been vibrating or rubbing other parts or objects the friction could cause a leak. In addition if there are loose fittings or weak solder joints it could be leaking from those areas. If you've determined the refrigerant lines are not leaking than it may just need to be recharged. If you don't know how to recharge it you may need to contact a service technician.

In temperatures under 60 degrees outdoor air conditioning units tend not to function as well. When the temperature drops the system begins to not function properly and freeze ups can occur. The simplest method is to not use your unit when the temperature cools down and open your windows or doors. If that's not a option you will probably need to have a ambient temperature control installed in your system.

The evaporator coils will become dirty over time. A dirty filter restricts the air flow making it lose air flow and eventually it becomes so slow that it freezes up, or at best, not cooling as well as it should. This results in dirty coils that will need to be cleaned. Depending on your air conditioner you may have to remove the coils to clean them. You should replace the AC filter yearly. For central air conditioning units another problem that occurs is when you have duct work that is undersized causing the unit to freeze up. If you feel that may be the problem you'll need to consult a professional. Try replacing the filter first and it may do the trick.
Air conditioner freeze ups can occur when the blower is not running at the required speed and may need to be replaced.

These are the main reasons why air conditioners freeze up. If you're lucky it may just be a dirty filter which you should be able to replace yourself.

Right Hand Or Left Hand HVAC Coils - How Do I Choose?


HVAC Coil manufacturers can over emphasize the need to designate left or right hand. The different reference points used can be intimidating and confusing. Often times, it just doesn't matter.

Do you need to specify a left or right handed steam HVAC coil?
Not generally. Most steam HVAC coils are universal. Steam coils are normally 1 or 2 rows deep. This allows you to reverse the piping connections. The supply connection must be on top and the return connection must be on the bottom. Return connections on steam coils need to be as low as possible for proper condensation removal. As long as you have the return connection lower than the supply connection, it does not matter if you have a right handed or left handed steam HVAC coil.

Do hot water HVAC coils need to be left or right handed?
Hot water and steam coils are almost identical since both are typically only 1 or 2 rows deep. The major difference is the supply and return feed. If possible, feed the bottom connection and return the top connection. This helps promote the removal of air that can get trapped in the HVAC coil.

Which HVAC coils require a 'hand' designation?
Cooling coils that are larger than 2 rows require a hand designation. All coils except steam coils should be installed in a counter-flow arrangement. This is particularly true for HVAC coils with three rows or more. Counter-flow refers to the direction of the air across the fins relative to the fluid in the tubes. A counter-flow arrangement will produce the most capacity. Using a chilled water cooling coil as an example, the coldest water entering the coil should be cooling the coldest air leaving the coil. See below for a more detailed explanation of counter-flow.

A detailed explanation of counter-flow:
A HVAC coil is an air to fluid heat exchanger. Air is traveling on the outside of the tubes and fluid is traveling on the inside of the tubes. The most important principle in designing any heat exchanger is put the air and the fluid in a counter-flow arrangement. This means that the air and water travel in opposite directions through the heat exchanger. You always want the water, refrigerant or steam entering on the side of the exchanger where the air is leaving. This means that as the air goes from left to right, the fluid is traveling from right to left. All coils are tested in counter-flow arrangements and it provides maximum efficiency. You can lose 15% of the capacity when a HVAC coil is piped backwards. This is the primary reason why deeper HVAC coils are designated as right or left hand. Counter-flow has negligible effect on 1-2 row coils.

How to reference left or right hand?
When you stand in front of a coil, the connections will either be on the right or the left side. This is what they mean by "hand" connections. Most manufacturers determine left and right while facing the entering airside of the HVAC coil. A few manufacturers determine left and right while facing the entering airside of the coil (the air hitting you in the face) When facing the end of the coil with the pipe stubs, the supply connection should always be at the bottom, leaving air side of the coil. The return connections should always be at the top entering air side of the coil.

Is there a proper hand for replacement coils?
When you are replacing a chilled water coil the connections are almost always on the bottom right and top left. Once you determine the supply and return feeds, hand designation is not important. The HVAC coil is either bottom right / top left or bottom left / top right. The most important factor with replacements is to match what was there, unless you realize the original coil was not piped in a counter-flow arrangement. This is a great situation, you can share your expertise with your customer and show them how to save money!

In summary, hand designation isn't a difficult concept, but many HVAC coil manufacturers make it seem more difficult than it needs to be.

What Is A Condenser?


What is a condenser? Many people have air conditioners but are not aware of how or what makes them work. A condenser is simply one component of an air conditioner. Whether you have an outdoor air conditioner or a window unit air conditioner your air conditioner contains a condenser.

Condensers are used in outdoor air conditioning systems as well as heat pump systems. Condensers in an air conditioning unit have very few controls. They will have an on and off switch. Occasionally these air conditioners will also have a brown out option. This option shuts down the compressor when the electrical current is low.

A condenser is simply a heat exchanger. It compresses refrigerants into a hot gas to then condense them into a liquid. A condenser is a major component in a air conditioning or heat pump unit. It moves air across the coils to facilitate the transfer of heat.

In a heat pump unit the condenser has a few more features. It will have a reverse valve that allows the unit to switch back and forth between air conditioning and heating. Even when the unit is heating, it uses the condenser for defrosting the coils. If the coils become layered with frost it will effect the units effectiveness this is defrosted when the reverse valve switches to air conditioning mode to move the hot gases through the coils melting the built up ice. It will automatically switch back to heating mode once the ice is cleared to once again heat the home.

It is very important no matter what type of unit you have to prevent the blockage of the condenser. If the condenser becomes block it can effect the units efficiency or even cause the until to completely fail. For this reason it is one of the most important components of a cooling or heating system. A condenser allows the maximum airflow to the unit.

To keep your unit in good operating condition it is vital to keep the area around the condenser clear of all debris as well as keeping the filter clear of dust and dirt. A clean machine makes a happy machine. A happy machine will keep you cool during the summer months and warm during the cold months. It is suggested to change the units filters when they become dirty, depending on your area and conditions near your home this may be as often as once a month or as seldom as every 3 to 6 months. You will have to pay close attention to your units needs to decide the right time to change or clean your units filters.

Keeping you condenser in good running condition will not only prolong the life of your heat or cooling system but also provide you with the most efficient heat and cooling system saving you money on heat and cooling.

American Standard Air Conditioning Units - The Importance of Proper Installation by a Professional


American Standard air conditioning units are dependable energy savers that can only be put to good use with accurate installation. Installation requires expertise in home design, positioning, and achieving effective air flow. Attempting to install the unit yourself can be a very bad decision. Only a professional knows the complete ins and outs of air conditioner performance requirements and how to get the most out of your unit. Efficiency is not the only reason why professional installation is so important. Improper set up can result in air quality issues, waste well spent money, and shorten the life expectancy of the unit. American Standard air conditioning units are highly rated, but the qualities they offer may not even be noticeable if they are not installed right.

Reasons Why American Standard Air Conditioners Should Be Put In By a Professional

Homeowners that have their American Standard air conditioners professionally set up are more able to make use of all the features and qualities expressed by the manufacturer. Energy consumption will be correct and much less. Cooling systems can vibrate and be very noisy. Experts use devices that reduce these issues. Bad airflow can contribute to asthma and other conditions. Ductwork accumulates condensation and under the right conditions can be subjected to mold growth. This growth is very harmful to individuals and has been known to contribute to many severe health conditions. A professional takes all of these things into account. Their experience ensures that these things do not happen and that your investment is not compromised. American Standard air conditioners, just as any other brand, have specifications for installation, and an expert will already have a thorough understanding of what needs to be done.

The Commercial HVAC Installation Process

Commercial HVAC installation is more detailed than most people would expect. An enormous amount of things must be considered before putting the unit in place. This is not a do-it-yourself job unless you already have experience in commercial HVAC installation. Ductwork and piping must be laid out and designed correctly to prevent extremely high energy bills. The components that complete the entire system must be understood and match for good operation. This includes the outside unit, inside unit, and ductwork. All work together and making a mistake in one area can reduce efficiency. Electrical work is required. The inside and outside units must be connected to the homes main power supply. Some systems only use an outside unit and if a heat pump will be used, piping is also part of the installation. Planning takes a lot of time and without the right knowledge it is easy to overlook or underestimate specifics in the process. The main power source has to be able to support the cooling system. Ductwork design will have to be contemplated. Unit size must be correct for the cooling load. Installation comes next and requires various expertises as well. With all these factors and considerations, it can be easy for an inexperienced homeowner to make mistakes. Relying on a professional for assistance saves money and guarantees a well installed, functional central air unit.

6 Common AC Problems and Costs


In the hot months you love your air conditioner, and if it breaks things can get a little unbearable. It is also expensive to repair your ac, so here is a list of common problems to help you out a bit.

This is a short list of six common AC repair problems. I will state the issue, then suggest the different possibilities for fixing it, and approximately how much it should cost.

1. The first problem is when the outside AC unit doesn't turn on. If there is no power to the unit then maybe there is a defective breaker or wires got burned/broken/etc. These problems should cost about $75-150 to fix. Perhaps the issue may also be a defective thermostat ($150) or transformer ($100).

2. Problem number two is when the circuit breaker trips when turned on. There are four possibilities here. First there might be a weak breaker ($100) or the condenser fan shorted to ground ($200-$300). A grounded compressor will put you back close to $1000 so that is the worst possible outcome.

3. The unit hums but the fan doesn't work. This could be due to a defective fan motor ($250) or defective capacitor ($140). Burned wires could also lead to this problem and will cost around $75 to fix.

4. The fan works but the compressor does not. This could be because of burned wires again ($75) or capacitor ($140). You may also need to add more refrigerant (freon, etc) which can cost $25-$50 per pound of refrigerant. Worst case scenario is when you need to replace the whole compressor which is around $1000.

5. The outdoor unit runs but the fan won't work. A defective blower motor will cost around $300 to fix, a defective evaporator coil will cost around $100 to fix, and broken wires or filters cost $50-$90 to fix. A defective capacitor will put you back about $100 and a new fan center will be around $200.

6. The AC is leaking water inside of your house. This can be because the drain stopped, which will cost around $100 to fix. Or it could be because the unit froze up which is an easy fix. Hopefully the problem is not because the evaporator coil pan rusted out because that will be around $1000 to fix.

I know this is not a super-detailed guide on how to fix your AC. But you can use it as a sort of troubleshooting guide to test out different problems when your AC starts acting up.

Monday, April 29, 2013

Six Indispensable AC Vacuum Pump Parts And Accessories


Whether you are embarking on a professional air conditioning service career or whether you want to be a home, DIY-type air conditioning mechanic, you will find out just how important a good AC vacuum pump can be for the success of your enterprise.

A vacuum pump is just like a vacuum cleaner for the inside of an air conditioning system. By creating a high vacuum inside, the AC vacuum pump will "boil off" impurities and residues of refrigerant that are stuck on the internal walls. A high vacuum will pump out water molecules, thus preventing moisture condensation, freeze-on effects in the expander/evaporator, where the temperature is far below the water freezing temperature, and preventing oil-water buildup, or "sludge".

Another function of an AC pump is to detect leaks by measuring gradual decrease of the level of vacuum over time.

Air conditioning vacuum pumps are quite expensive so, in order to maximize their use, you need to equip yourself with the accessories and spare parts that will make the operation of an AC pump go smooth, and effective. In this short article we'll look into six indispensable AC vacuum pump parts and AC vacuum pump accessories: Pump hoses, Pump adapter, Inlet fittings, Refrigerant identifier, Can tap valve-screw-on, and Vacuum gauges.

Vacuum pump hoses

You best get the pump hoses that are UL (Underwriters Lab) certified for safety, and that have quick seal fittings. 1/2 inch and 1/4 inch as well as medium size 3/8 inch are standard.

Vacuum pump adapter

The adapter will connect unequal size pump hoses, for example a 1/2 inch hose with a 1/4 inch hose or service part on the pump.

Inlet fittings

The typically T-shaped inlet fittings on an AC pump will allow you to keep two hoses connected simultaneously to the AC pump, making the setup one phase rather than two phase. Just switch from one inlet to another when needed.

Refrigerant identifier

Refrigerant identifier is an important device that will let you know in an unfamiliar system, what type of refrigerant substance you are dealing with before you embark on the service or repair. These days, in search of a ozone-friendly, non-flammable, non-toxic, and actually useful refrigerant, many different substances are used that require much different handling and even much different equipment. So be sure to get a refrigerant identifier rather than working in the dark.

Can tap valve-screw-on

These are always useful to cut off the vacuum pump-hose connection when needed.

Vacuum gauges

Nothing is more important than a good set of vacuum gauges in order to know when your job has been successfully completed. Be it for measuring the ultimate quality of the vacuum, or for finding out the presence of leaks in the system, vacuum gauges are indispensable.

Choosing the Right Air Conditioning System


For many us trying to find the right type of air conditioning for the home can prove somewhat difficult, especially if you are not sure what you are looking for. There are a number of different factors that you need to be taking into consideration when it comes to buying air conditioning for the home. Below we look at what these are and which you should try to keep in mind when looking for the right units for your home.

Factor 1 - Size of Room
This is one of the most important factors you need to keep in mind when looking for air conditioning for the home. The size of unit you go for is dependent upon the size of the room that it is going to be used in. For large areas such as living rooms then you need large units with high BTUs. However for the smaller rooms in the home say a bedroom or bathroom then a wall unit or a portable room one should suffice.

Factor 2 - How Effective and Efficient Are They?
As well as finding air conditioning units which are energy efficient you want ones that are going to save you money also. This may result in you having to spend more on the system than you originally planned to but will make sure that you save money on them in the future. Good quality efficient air conditioning units for the home should not use too much energy in order to cool a room down when turned on in the summer.

Factor 3 - What Kind of System of Air Conditioning for the Home?
When it comes to air conditioning for the home there are three systems one can use. There is the one that affixes to the window, the ductless split or the central ducted one. As part of their refrigeration units most of these systems use HCFC (hydrochloroflurocarbon) in them which adversely affects the ozone layer. If you can avoid such units but instead goes for those that now use Hydroflurocarbon 410A as it is not only more energy efficient, but it reduces the amount of carbon dioxide gas it emits.

Factor 4 - System Cost
You can expect to pay on average between $500 (£300) and $1,000 (£650) for air conditioning for the home these days. However, how much you spend depends on the size, model and make of you unit that you choose. Also it will depend on just how energy efficient the units are in relation to the amount of cool air they expel and how much power they need in order to produce it.

In this article we have taken a look at a number of factors that you need to be taking into consideration and keeping in mind when thinking of getting air conditioning for the home. By keeping these in mind not only will you get yourself a system that is efficient but will end up saving you money and ensuring that this planet lasts a few more years.

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.

Buying An Air Conditioner? The ARI Reference Number Is Your Best Friend


You already know about the importance of energy star and seer ratings of an air conditioner. Add to them the ari reference number - it's a very important piece of information about an air conditioner. The ari reference number is what guarantees you that your new and shiny air conditioner is an energy star unit with the right seer rating and the right amount cooling. Every air conditioner must have the ari reference number. The next paragraph will make you an ARI reference number expert.

A residential central air conditioner has two main parts the condensing unit installed outside of the house and the evaporator installed inside the ductwork. For an air conditioner to work up to specs or to work at all, these two components must be properly matched. Each condenser works properly with only a limited number of evaporator models. Each of the matches has a unique identifier -- the ARI reference number. Think of the ARI reference number as the marriage certificate for the components of your heat pump. It's that simple.

Even if you don't check anything else, you need to verify the ARI reference number before the air conditioner is installed. On the invoice, among other information, you contractor must show three crucial pieces of data - the model number for the condenser, the model number for the evaporator, and the ARI reference number. Before the evaporator gets concealed inside the ductwork for good, check that the model number on the evaporator matches the number on the invoice. Do the same for the condenser.

At the very top of the page, type in the ARI reference number from the invoice. Click "Search The Database". This is the moment of truth. The site will give you the model numbers for the condenser and for the evaporator, as well as the SEER rating for the air conditioner and its cooling capacity. Do they match the numbers on the invoice? They'd better to. If they don't, do not allow the contractor to proceed with the installation. Do not accept ANY excuses. That would be my best advice to you.

Similar information is supplied in the Product Specifications or other documentation provided by the manufacturer for checking 13 SEER units.

About ARI. It stands for Air-Conditioning and Refrigeration Institute. ARI is a trade association that represents the manufacturers of more than 90 percent of the air conditioning and commercial refrigeration equipment installed in North America. An internationally recognized leader in developing standards for these products, as well as certifying their performance, ARI is also a major advocate for the heating, ventilation, air conditioning, and refrigeration (HVACR) industry both domestically and abroad.

How to Buy and Maintain Your Air Conditioner


Unlike other household appliances, air conditioning is perhaps the most expensive and no doubt an absolute essentiality. Proper maintenance and timely repair of the air conditioning system in your house must therefore be of utmost concern to keep you and your family feeling cool in the midst of a scorching summer! When purchasing an air conditioner some important tips one needs to bear in mind are:

  1. Energy efficiency of the air conditioner must be tested first because today's environment conscious individuals will opt for more energy saving units that means less consumption of power. Less power also means you can cut down on costs.

  2. The model that you are planning to get should be one that uses eco-friendly refrigerants.

  3. The area selected for installation that has a major impact on the functioning of the unit.

  4. In case the air conditioning unit has not been correctly installed, the cooling will not be as expected and customers are bound to feel let down by the company.

  5. Always get an expert to install the air conditioner for you since they have the necessary expertise.

  6. It is better to buy your unit from reputed makers after researching reviews and customer feedbacks placed on websites about it.

Air conditioning maintenance is vital to ensure that the unit continues to function smoothly and efficiently for at least a minimum of 15 years and electricity bills are kept under a control. Some valuable tips that you can follow to keep your AC running smoothly are as follows:

  1. Clean and replace if needed the furnace filter on a monthly basis particularly in the summer. This is to be done according to instructions given in the manual. The thermostat should be kept at a constant temperature so that the unit does not have to consume more power for cooling.

  2. Drainage in the condensation tube must be smooth and hoses are to be leak proof.

  3. Registers should be placed at a distance from curtains and furniture items.

  4. The duct has to be cleaned every couple of years. Cooling coils must be cleaned and checked annually by applying water using pressure and keeping the machine's power off.

  5. The compressor must be placed away from dirt and a water hose may be used to get rid of it. In winter when the machine is not required, the compressor is to be covered with a cloth to protect it from dust.

  6. For window ACs panels may be removed when the machines are not needed like during winter months.

  7. For those ACs that are placed in windows directly exposed to the sun, plants may be placed to provide shade but not in a way so as to obstruct the air passage.

  8. Hire the services of a professional technician to examine the machine from time to time.

Home Improvement - Heating and Air Conditioning - A Look at Ceramic Coatings to Save Energy


Perhaps you are aware that ceramics are very good at deflecting heat, but did you know they also can be used to help keep things cooler for much longer than other materials, it is true? This new information may assist you in maintaining a very efficient air conditioning unit in your home or at your office. How so you ask?

Well first you let's consider the guts of your current air conditioning unit. The condenser, the flanges, or fins used for cooling and the piping inside the unit. These are often made out of steel, copper, aluminum, and other alloys. Next, let's look at the box or housing of the air-conditioning unit itself. Often these are made of galvanized steel or stainless steel. This means they can heat up on the outside and that raises the temperature inside.

To combat this problem there are now coatings that harden to ceramic or glass coatings. The chemicals must be applied at room temperature and go on at a few mils to 10-mils thick. This seals the surface with a glass-like coating. By coating both the inside and outside housing of the unit, it will keep it cool inside.

And when you coat the flanges, condenser, and piping as well, this will keep the mechanism cooler and that means your airconditioning system will run less time, as it does not need to kick in as often to keep the air inside the system cool. This is one very simple thing you can do to promote efficiency in your energy usage. It's smart, saves money, and clearly it's the right thing to do. Think on this.

Sunday, April 28, 2013

Professionals Ensure Reliable Heating and Air Conditioning


Many towns across the US subjects its residents to varying temperature extremities. These conditions require high quality systems. These units must be well kept for reliable heating and air conditioning. A unit under repair leaves the building unbearable. Fans are not effective in areas where temperatures increase above one hundred degrees. Neither are blankets when the temperature gets below freezing. Central air systems have three very important functions. They keep the temperature in a room or building at a comfortable level. Filtering provides better air quality. A reliable unit protects residents from conditions such as heat stroke or frost bite. Air temperature regulation is more than just a convenience. A unit can be a life saver under extreme conditions.

Romans are credited with the development of ventilation systems. They originally used this type of design throughout private homes and public bathing facilities. During this time period, steam was filtered under a pillar raised floor. Air quality was not hindered by using this method. Today the equipment used for heating, cooling, and air ventilation is far more advanced. Air units are placed outside of a home or business. A heating system in most cases is placed within the building. Both connect to air ducts which span throughout the structure. Hot or cold air is circulated through the air ducts until the set thermostat temperature is reached. The unit then kicks off. When the temperate deviates from the desired setting, the system once again begins circulating air. This is continual process only stops when the unit breaks down or is turned off.

Air Conditioning Contractor: What Can They Do to Help?

Frequent use of these systems causes dirt buildup inside the ductwork. If filters are not high enough in quality, this buildup can also reside on internal parts. Cleaning is an essential process for all types of air systems. An air conditioning contractor can perform tasks needed to keep the unit clean. Servicing prevents parts from being bogged down. Ventilation ducts which suffer from this issue can grow mold. Air quality is reduced and becomes a health concern for all inhabitants. Services are available to clean this portion of heating and cooling systems. Contracting professionals check the ductwork as well as the unit for this problem. They clean parts during routine maintenance. Depending on the extent of their services, they may also have the capability of cleaning these other components.

Many individuals are reluctant to employ the services of a contractor. The fear of high repair costs is the most common reason for delaying the inevitable. In reality, a contractor can be the best friend of a homeowner. Most individuals know nothing about their air systems. They are capable of turning them on, changing the filters, and enjoying the provided comfort. Apart from simple operation, a heating or air unit is like a foreign object. This creates problems because a system has to be properly serviced to retain performance. You can benefit from contractor knowledge. Problem identification during servicing, purchasing advice, installation assistance, and dependable maintenance are just a few advantages received through a reliable expert. Homeowners save more when employing their services than by avoiding them.

The Importance of Heating and Air Conditioning Services


The home is one of the places where you are supposed to experience total comfort at all times. However, there are times when environmental conditions threaten to compromise this comfort. These environmental conditions include:


  • Extreme temperatures; when it is either too hot or too cold

  • Humidity

  • Dust particles and other allergens in the environment.

Good heating and air conditioning services do their best to regulate these conditions to make sure you are comfortable in the home. Here, are a few of the benefits that you will get when you invest in quality HVAC services.

To start with, installing heating systems in the house helps keep the house warm during the colder months. There is nothing that is more disorienting than going to bed in a cold house on a winter night. The most uncomfortable part is taking a bath with cold water in the colder months. Water and house heating systems help you keep warm and avoid infections that might result from the cold weather.

Secondly, AC is very beneficial when it comes to cooling down the temperatures during the summer months. Temperatures get quite high especially outside during summer. It feels good to step in the house and get refreshing cooler temperatures. A good air conditioning system in the house regulates the temperatures to what is suitable for all seasons.

Air conditioning systems have the ability to remove dust particles and all other types of allergens from the environment. There are people who are allergic to pollen, dust and other particles from the environment. Air conditioning services help purify the air and protect you from allergic reactions and illnesses such as asthma.

There are many more benefits that come with having heating and air conditioning systems in the home.

Tips in selecting the best HVAC systems

If you want to have a comfortable time in the house, you need to select quality heating and air conditioning system. The choices can be quite tricky especially with the many service providers and products in the market. However, the following tips should help you get top quality products and services.

1. When purchasing heaters and ac unit, always go for the brands that have been tested and proven to be leaders when it comes to air conditioning. The top brands usually cost more than the others. But by the end of the day, the service and durability you get is all worth the cost.

2. If for some reason your systems have stopped working, take time and select the most skilled heating and air conditioning services providers to repair the systems for you. DIYs are a good idea, but if it is an issue you are not sure about, avoid attempting to do it.

Those are some tips to have in mind when going for HVAC goods and services. Lastly, remember that the comfort of your home largely depends on the environmental conditions that surround it. Make your house a heaven by adding quality heating and air conditioning services. After all, if you are not comfortable in the home, where else will you be?

Air Conditioning Systems Design


A central air system cools the air in your home by using supply and return ducts to circulate the air. Cool air is carried through the supply ducts to the registers to cool your home. Registers are the vents located in the ceilings, floors, and walls that are enclosed by grill covers. As the air is dispersed into your home, it begins to become warmer. The unit will kick on and pull this warm air back into the unit for cooling through the return ducts. As your air conditioner goes through this process, it dehumidifies the air. When you live in an area where humidity is extremely high or your system is not the right size, not all the necessary humidity will be removed and problems can occur. Speak with a professional to find out what you can do in these types of situations.

Air conditioning systems design includes two types. These are split-system air conditioners or a package unit. With a split-system design, the compressor and condenser are located outside in a medal cabinet. The evaporator is inside your home and is protected by an indoor cabinet. Another component that may be located in the indoor cabinet is the heat pump or a furnace. The evaporator coil is positioned either in the furnace or heat pumps main supply duct or the indoor cabinet itself. This type of system is the better choice if your home already has a furnace. It is more economical to install as well.

A packaged unit contains all components in one cabinet. The evaporator, compressor, and condenser are all in the same location. This cabinet is often placed on a concrete slab next to the home. Many small commercial businesses use this type of unit as well. They are often installed on the roof or outside of the building. The air ducts run through the interior of the home and go through the exterior wall to connect to the outside unit. A package unit often comes with heating coils or a furnace that runs on natural gas. With this setup, a separate furnace is not necessary. Air conditioning systems design is pretty straightforward as far as types and setup. Models vary by type, size, and capacity.

It is important to know which type of system is in your home so it can be properly maintained and you can give the appropriate information when air conditioning repair is needed. Even the most efficient system may need HVAC repair from time to time. Remember to have your system serviced every year to prevent a major air conditioning repair from arising. When you notice that your unit is not functioning as well or is low on refrigerant, it is time to call a professional who specializes in HVAC repair. They can find any minor problem and get it resolved so that more expensive repairs are less likely to occur. If you are trying to decide what type of system to install in your home, consider how your home is designed and talk with a contractor to determine which setup will work best and be the most economical for your situation.

How the New Central Air Conditioning Units Save Energy


As many as eighty percent of the new homes being built in the U.S. are built with central air conditioning units installed. Central air just makes sense, as it keeps the indoor temperatures comfortable while filtering and dehumidifying the air. This is particularly nice for people who suffer from allergies or asthma. Fortunately, central air conditioning units can be installed in preexisting homes, too.

When shopping around for central air conditioning units, there are several things to consider. One is the size of the home you will be cooling. Air conditioning units come in different sizes, so it is important to choose the most efficient size for the cooling job you have in mind. If the unit is too large, it won't dehumidify properly. To determine the right size, consult a contractor. They should have access to a calculation method called "Manual J" that can help you choose a size.

Another important consideration in central air conditioning units is a rating called the SEER rating. These letters stand for Seasonal Energy Efficiency Ratio. New air conditioners are required to have a rating of 13. A unit that was installed over twenty years ago probably has a rating of only 7 or 8. This is because technology has improved the energy efficiency.

By replacing old inefficient air conditioners with new central air conditioning units, you can save a lot of money in cooling costs. It is estimated that increasing the SEER rating from 11.5 to 13 could save you over $500 each year in cooling costs. Also, look for "Scroll(tm) technology" when choosing a compressor for the latest in efficiency.

Another thing to look for in central air conditioning units is the "Energy Star." This is a certification given to new appliances that use less energy than other new models. Of course, they use a lot less than equivalent units that are a number of years old.

When installing central air conditioning units, the location of the outdoor unit can make a big difference. If it is surrounded by vegetation or is under a deck, the air will not be able to flow freely in and out of it. Not only that, the units can be noisy. Don't install it near an area where you like to enjoy eating or visiting outdoors, such as a patio or deck.

Wall Mount Air Conditioner


For most residential and all commercial air conditioning installation - it is not just placing conditioner suitable surface, but also quite complicated procedure mounting blocks, connecting pipes and electrical wiring. Completing the installation of conditioning commissioning and test running the conditioner. After installing air-conditioning should be fully ready for use.

To install the conditioner requires specialized equipment and expertise. Therefore requests the installation of conditioning professional installation teams, preferably from the company where you bought the conditioner. Save for installing conditioner can not in any case - better buy a cheaper model, with a smaller number of additional functions. Note: If air conditioning is not installed properly or poorly, it's good work he will not.

Good vendor is engaged not only selling, but also the installation and commissioning of air conditioners, air conditioning, ventilation and heating. This company pays great attention to the quality of preparation and assembly teams. Installers must be certified before each new season.

How to install different types of conditioners

1. Monoblocks - no need to install. Just put in the right place and turn.

2. Window conditioners - they install special complexity does not represent, but we suggest you contact those who have already installed window air conditioners before.

3. Wall-mounted conditioners - They are mounting calls for specific skills and knowledge of technology. When you install a professional service and lifetime of air conditioner will be more, and the external unit operates quieter, and wall space will not be damaged. "Jobber" can set the air conditioner so that the condensate will be poured upon the heads of passers-by, or cracked wall and you will have to re-do repairs.

4. Cassette, floor / ceiling and duct air conditioners - their installation can be done only to professionals. Are the Semi-conditioning is expensive, their installation is complex and is only available to teams of skilled professionals.

Standard installation

Installing the indoor unit air conditioner in a standard setup wall air conditioner outdoor unit it is placed directly under the window of the room, is located in the inner block. The upper edge of the outdoor unit is not above the sill. The indoor unit is installed on the wall adjacent to the window. The distance between the internal and external air conditioner unit (length of freon route) does not exceed five meters. To condensate easily removed from the indoor unit, the line is carried out with a slope of 3-5 degrees (towards the outside down). Indoor unit air conditioner must be installed exactly, otherwise it may leak water. Pipeline, which will circulate freon, electrical power cable and the drainage tube (to remove the condensation water) are constructed as follows:

1. Indoors all communications are in a white plastic box.
2. Opening in the outer wall through which the communication is also closed plastic conduit.
3. The thickness of the outer wall does not exceed 60 inches.
4. Outside the building pipes and cables run along the wall, and they are not attached to the wall and protected by a basket.
5. Drainage pipe from the inner block is extracted by 10 - 20 cm through the nearest exterior wall.
6. Electric power cable is laid in decorative boxes white

See more vertical air conditioners

The Importance of Servicing Your HVAC System


It is easy to take for granted that your HVAC system is running properly. You may think that since you don't notice any immediate issue with your furnace or air conditioner that your HVAC system is operating correctly. This, however, may not be the case. Don't put off your annual HVAC inspection and service. Without the routine visit by an HVAC service technician, your furnace or air conditioner could lose efficiency and begin to operate inefficiently. Problems that could've otherwise been caught will be allowed to grow and cause damage to your HVAC unit, shortening its lifespan.

The most important reason why you should take measures to have your furnace and air conditioner serviced is for safety. Natural gas and oil HVAC systems burn fossil fuel, which can produce harmful byproducts like carbon monoxide. You certainly won't want to risk the health of yourself or your family by breathing in the poisonous gas, so be sure to have a professional HVAC service technician perform the yearly maintenance on your unit. Furthermore, without an annual inspection, your furnace may have a greater risk of sparking a fire. Having your furnace undergo routine service will significantly decrease the likelihood of having a catastrophic accident occur. In most cases, an annual service inspection will allow the HVAC contractor to catch potential problems before they happen. They will be able to either remedy the problem, or advise you on the best course of action to ensure the safety of your family.

Another advantage to having a licensed technician perform annual service on your HVAC system is to maintain proper efficiency. When your furnace and air conditioning units are properly tuned, they run at maximum efficiency. This means less energy consumption and lower utility bills. The cost of annual HVAC service is far less that the amount of savings you'll receive on energy bills when your unit is optimized to run at maximum efficiency.

It is important for the HVAC technician to check for build up of dirt and debris inside the furnace and air conditioner, as well as inspect the unit to ensure the parts are in good working condition and are installed correctly. Cleaning the HVAC unit will allow it to continue to run smoothly without being hindered by soot and dirt that eventually builds up. The HVAC contractor will also ensure the vents are clear and all gases are able to escape through the vents or chimney.

Taking the measure of having your HVAC system inspected annually will not only save you money on your energy bills, but you'll have peace of mind knowing that your family and household are safe from toxic gases. Furthermore, the small expense of having a professional service your unit will save a lot of money when compared to the cost of purchasing a brand new unit.

Saturday, April 27, 2013

Commercial Air Conditioning To Suit Your Needs


You might think the quality of your products or the services you provide might be the USP of your company and although is truth to that, there are many other factors that help you stand out in the crowd of competitors. It's not only about how you package your products but your office premises as well because that's where your clients will be coming for meetings and often signing lucrative deals with you. Your office space says a lot about your company and your clients need to feel valued. Commercial Air Conditioning is what you need to be looking at to make a cool impression with them.

If you already have Air Conditioning installed in your office but it is not working to its optimum level it might cost you a fortune in maintenance not to forget your electricity bills. You might be better off getting a new system installed and save long term costs.

Those who have massive office spaces do not have to fret either because it doesn't necessarily mean your costs go that much higher. With well thought out planning during installation you can effectively get Air Conditioning for your entire office without burning a hole in your pocket.

Whatever your needs might be or any doubts you might have, it's probably time to put them to rest and speak to a Commercial Air Conditioning company near you. These professional companies are experts in the field and will make sure they provide you best of their services at reasonable costs. After all they are relying on customers like you to beat competition as well.

What do genuine Commercial Air Conditioning companies offer you?


  • They will be earnest in trying to understand needs of your company. They will take into account your office space, its layout and also the number of employees working for you before coming up with the best installation plan for you.

  • They will ask you for your budget at the onset rather than throwing random, astronomical figures at you. They will try and work within your budget constraints and keep things in check.

  • These companies not only have professionals skilled in their field but also talented designers working with them. If they face any layout issues during the installation a designer working with their team will fix those issues for you for no extra costs.

  • They will do their jobs usually over the weekend or on public holidays if it suits you. However they are also able to work during the week and their trained staff will make sure no inconvenience is caused to your staff.

  • These companies will be happy to work out long term contracts with you. It builds a healthy working rapport with them and you can get handsome discounts in the future. Their willingness to be tied into contracts shows you that they are confident of the services they provide and you won't encounter regular maintenance problems.

  • You don't have to run after them for periodic maintenance as well. They will keep a log and do their job on time.

Keeping your cool was never so easy.

When Do Convention Centers Need Portable Air Conditioners?


Convention centers act as large gathering places for businesses and other organizations. Some even double as civic centers and host political rallies, high school graduations and community meetings. The space is usually large and open so that everyone and all of the necessary tools for an event can be gathered in a single area. Convention centers often require the placement of portable air conditioning units in order to keep the inside of the building cool. There are several aspects to the events that are commonly held in the building that result in the need for portable air conditioners.

Delicate Equipment

Convention centers are often used as the primary venue for trade shows, annual business meetings and even new product introductions by companies. All of these events usually require that large amounts of multimedia equipment, like projectors, computers and audio systems to be used for hours or days at a time in order to show guests presentations or to create interesting environments at a trade show. This equipment consumes a fair amount of power and tends to generate larger amounts of heat than other types of devices. Portable air conditioning units help to keep the area cool so that equipment does not overheat and stop working.

Crowds

Many events that are held at a convention center involve large groups of people who can potentially fill the auditorium. The human body generates heat even when not performing any strenuous activity. The size of the crowds that gather inside of the center during a rally or a graduation ceremony can dramatically increase the temperature of the room. This heat can cause drowsiness, irritation or general discomfort if it is not handled correctly. Portable air conditioners give the building management staff the option to increase the amount of cooling in a convenient way that can be adjusted depending on the expect size of the crowds that will gather.

Catered Events

Any gathering or event at a convention center that lasts for more than an hour or two generally includes some type of catering in order to ensure that participants remain hydrated and to prevent situations where large groups leave during presentations to buy food elsewhere. Even the best catering set-up requires that the temperature inside of the building remain at a reasonable level in order to keep food in a buffet or on a serving line safe to eat for a long period of time. Portable air conditioning units can help to keep catered events cool so that food remains available to the participants for as long as necessary.

5 Tips for Choosing Air Conditioner Service Providers


Before the hot summer months sneak up on you, it is a wise idea to choose an air conditioner service provider for all of your HVAC needs. This may seem like a simple thing to do, but it takes some time and research to find a service provider that is worth your time and money. The following 5 tips will help you find the best match for you, no matter what your individual needs may be.

Certification/Licenses

In your search for top-notch service provider, you will want someone who has all of the necessary and state required certifications and licenses. When speaking with a provider in person, ask to see if they follow the National Air Duct Cleaning Association's (NADCA) specific standards, as this is a sign of higher quality. Depending on which state you live in, there may be different requirements for certification, so be sure to compare and contrast several companies.

Experience

The second thing to look for in a provider is experience in the field of air conditioning. When you hire a technician to work on your unit, you want to be certain that they have specific training to deal with your equipment. Not all air conditioning units are the same and as such, not all technicians will be skilled to handle certain models. Be sure to ask this question of a service provider before they send a technician to your home, which can potentially waste your time and money. In general, the more years a person has spent working with AC units, the more knowledge they will have for troubleshooting and repairs.

Reputation

Perhaps an obvious tip, a company's reputation cannot be overlooked. Be weary of reviews provided by the company itself, as these can often be exaggerations. The best way to learn about a company's reputation is to ask for reviews from current customers. You can also do searches online to read reviews and ask friends and family for help or recommendations.

Quotes

Before you sign any contracts with a service provider you should ask for clear and detailed quotes for all standard air conditioning maintenance. You can get estimates and quotes from several companies to find the best deal and to see who may be trying to take advantage of you. You should always get these quotes in writing and with signatures so that when the time comes for repairs or replacements, you can refer back to the original quotes.

Customer service

The final tip for selecting the best service provider is to gauge the level of customer service. This includes every aspect of the business, from the person answering your phone calls to the technician who comes to your home. Everyone should be professional in demeanor and treat you with courtesy and respect. Any questions you ask should be met with informed and comprehensible answers.

By following these tips you will soon be on your way to choosing the best AC service provider possible.

Fixing Your Office Air Conditioning System


If you work in an office environment, you have no doubt had struggles with the air conditioning. In offices you often find that half the building is too hot, whilst the other half of the building is too cold. So what can you do to fix the air conditioning in an office? Below is a guide as to why the air conditioner in an office causes so many problems and a guide to how you can fix it or prevent problems from occurring.

Why It Occurs - So why do air conditioning problems occur in the office? The main reason is that different sides of an office have different heat loads. What you will usually find is that the sun will shine on one half of the building making this area hot. The people on this side run the air conditioner to cool themselves down. The office space on the other side of the building has no sun shining on it, and this area may already be cold. When the air conditioner goes on, the unlucky people on the cold side of the office get very cold whilst the other side sits in comfort. At the end of the day, the reverse often happens where the sun is now warming the other side of the office, so the other side encounters problems.

Another common office air conditioning problem is that different people have different requirements. Some people like it warm whilst others prefer the cool. It is hard to find a group of people who all want the same temperature setting in a room.

Fixing With Temperature Control - Temperature control systems can fix the common air conditioning office problem. A temperature control system will allow each side of the office to choose their own individual temperature settings. This will keep both sides of the office comfortable. These systems can be quoted with a system, or added to an existing system.

Install Separate Units - The installation of separate air conditioning units can really help in an office setting. Multiple units will give the users more temperature control, rather than simply using one large air conditioner to service a whole floor or level.

So hopefully these tips will help you win the war of the office air conditioner.

10 Tips for Renting Long-Term Apartments in Kiev


10. Know Your Budget - Understanding your budget for rent should include utilities. Expenses such as internet service, electricity, gas; and in some cases water and parking will dramatically increase your overall monthly living expense.

Many apartments for rent include internet, electricity, gas, water and parking in the monthly rent cost. Therefore, it would be wise to ask your agent for specific details. Figure out exactly which utilities you require, see if these utilities are or are not included with the monthly rent; and then calculate the total cost.

Note: Many property descriptions will lead you into thinking various utilities are included in the rent - but often times require additional payment.

9. Heating /Cooling - The winters in Kiev are harsh. Actually, it is VERY harsh/COLD! Regardless if a property description states heating is available, make sure you get clear details. Most buildings have 'Central Heating.' This heating system utilizes water and/or air and heats the entire building. Central Heating works from October 15 to April 15. Sometimes it can be still cold before October 15 or after April 15, so if you plan to stay before or after these dates, check to see if other forms of heating is available - e.g. electric, fire place etc.

Most apartments do not have individual air conditioning units as the warm months in Kiev are quite moderate. However, Western influences in renovation and construction have instilled the value of having units fixed with individual air conditioning units. Make sure you ask your agent or the home owner (in detail) if the apartment has proper heating and cooling systems.

8. Transportation - Unless you plan on purchasing a car in Kiev or having one shipped over, you will most likely get around using public transportation. The public transportation infrastructure in Kiev and throughout Ukraine is well structured. Metros (underground subway), trains, trolley-buses, buses, shuttle-buses, taxis are all forms of Kiev's public transportation. When deciding on an apartment to rent, find out where the closest Metro station is located as this will be your main means for transportation (especially for those who commute to work daily). Remember, the winters are harsh in Kiev and the last thing you want to do is walk long distances to and from Metro stations.

7. Parking - If you plan to own a car while residing in Kiev, having your own private parking spot would be convenient. Having a parking spot located underground is even more convenient (especially during winter months). Therefore, ask your agent or the home owner to give you information on parking for the apartment. If a private spot is not available, make sure adequate street parking is available. Having to spend time looking for a spot to park after a long day at work can be frustrating, time consuming, often times require long walks and may pose a security threat.

6. Furniture - Most apartments come furnished. Get a complete detail of the type of furniture, appliances and see if anything you may specifically need is furnished. If you are looking for an unfurnished apartment, most agents will be able to negotiate with the home owner to remove some if not all the furniture.

If an apartment comes unfurnished but looking for one that is furnished, ask your agent if the owner will accommodate furniture for the apartment.

5. District (location) - As with most large cities in the world, Kiev is broken into various neighborhoods ("districts"). Spend some time and research the various districts of Kiev and look for an apartment that is within your budget as well as its distance to your work place/school, shopping locations, and places you may want to frequently visit during your downtime - parks, museums, churches etc.

4. Bedrooms / Bathrooms - Most agents will describe a property's bedroom/bathrooms with a simple 'rooms.' If a property states it has 4 rooms, this may be 2 bedrooms and 2 bathroom; 3 bedrooms and 1 bathroom; or any other combination. With that said, ask your agent to give you specific detail of the property's number of bedrooms and bathrooms.

3. Timing - Plan ahead. A minimum of one month notice should be given to your agent; so that he or she will find exactly what you are looking for (often times saving you money as well). Also, there are major festivities such as UEFA Euro Soccer and long holiday seasons that often times will limit you and your agent to find what you are looking for - poor planning/timing may also result paying premium prices for an apartment as many apartment owners will increase the price during specific festivities when apartments for rent are in high demand.

2. Contract/Lease Agreement - Most agreements are drafted in Russian and English (together) and notarized. Expect to sign a 12 month agreement as this is the norm. If there is a possibility that you may not need to reside in the apartment for a full term/agreement, ensure you ask the agent to put a clause in the contract/lease agreement that states the tenant(s) have the right to break the lease with no penalties should an agreed amount of time/notice is given.

1. Use a Real Estate Agency - Although the least inexpensive way to find an apartment for rent is dealing strictly with the owner, finding this information is close to impossible for foreigners and property owners in most cases do not like dealing with possible tenants. Therefore, property owners will list their properties with local real estate agencies. A private real estate agent will give you invaluable advice, make all necessary negotiations with the landlord, draft contracts tailored to your needs, and most importantly, an agent will find exactly what you are looking.

Stop Losing Your Hair Now!


Are you tired of finding strands of your hair in the sink, on the counter, or in the shower? No matter what age you are, no one likes to lose hair; everyone would rather keep it implanted on their scalps, where it belongs. Of course, if you have plenty to spare, you may not mind losing a few down the drain. But for those who are concerned about the exodus of their locks, here are some preventative measures to take before resorting to hair transplants or chemical processes.

1. Wash your hair every other day. Some people wash it daily, but as long as your hair remains manageable and not greasy, you can probably switch to alternative days. This will protect weak new hair follicles, giving them a chance to develop more fully. It also means you will be brushing or combing your hair less often, which means less stress on your scalp and strands.

2. Forget the 100 strokes a day. A generation or two ago, women taught their daughters to brush their hair 100 strokes daily. But professionals have come to realize that lengthy brushing may loosen hair strands and pull out excess hair. A dozen strokes or so ought to be enough for most heads of hair, but consult with your hair care stylist if you have questions or feel your hair needs more attention.

3. Use a detangle product. If your hair is long or thick, or for any reason is prone to tangles or split ends, apply a conditioner that defuses tangles or a detangling cream that smoothes them before combing. When you do comb or brush your hair, it will be easier to manage and result in less breakage.

4. Don't overuse hair care products. Too much spray, gel, or mousse, along with too much heat treatment can cause damage over time. Use products like these sensibly. Keep an eye on their effect. If your hair starts looking dry or greasy, or if the ends look dull or split, make an appointment with your hair stylist or try a deep conditioning product at home.

5. Protect your hair from the elements. Avoid too much sun on a hot day. Keep your head covered in pelting rain, cold, snow, or sleet. Humidify your home when the air gets dry. Steps like these will help to keep your hair strong and safe from potentially damaging elements.

6. Comb wet hair gently. Begin with the lower layers and gently comb in the direction the hair takes naturally. Work your way up to the scalp, carefully working through tangles or snarls. Don't use a brush on wet hair, as it can cause breakage.

7. Give your hair extra care after swimming in a chemically treated pool. You may have to wear a swimming cap or give your hair a conditioning treatment afterward.

Taking a few precautions like these can help to reduce the amount of lost hair and broken strands that you will find in the sink from now on.

Friday, April 26, 2013

Airflow (CFM) Determination of an Air-Source Heat Pump (ASHP)


If you are a HVAC/R technician, you should always check any air-source heat pump (ASHP) for proper airflow across the coils when troubleshooting or during preventive maintenance.

Correct airflow is of crucial importance to the operation of any ASHP. Part of the heat transfer rate is determined by the airflow across the indoor and outdoor coils. If the airflow is incorrect, then the heat transfer rate is incorrect and can drastically affect the equipment's performance.

Accurate airflow measurement is essential in troubleshooting any heat pump system. In fact, no refrigeration test is valid if the air flow volume is not correct!

ASHP manufacturers follow the tenants of the Air Conditioning, Heating, and Refrigeration Institute (AHRI) which has a "Test Stand Value" requiring the measured air volume rate, when divided by the measured indoor air-side total capacity, must not exceed 37.5 SCFM per 1,000 Btu/h [this is a maximum of 450 cubic feet per minute (CFM) of airflow across an indoor coil per 12,000 Btu/h of capacity]. Most manufacturers use an acceptable range of 350 to 450 CFM per 12,000 Btu/h of capacity, and over 750 CFM per 12,000 Btu/h of capacity across outdoor coils (most outdoor fans move approximately 1,000 CFM, up to 1,500 CFM, per 12,000 Btu/h of capacity). In the HVAC/R industry, 12,000 Btu/h of capacity is referred to as a "Ton" of refrigeration. Typically, most manufacturers focus on around 400 CFM per "Ton" when rating their equipment.

Before performing any airflow determination, always make sure that all registers and grilles are open filters and coils are clean, and that blowers and fans are running properly delivering airflow across the indoor coil and the outdoor coil.

There are various methods that help determine the airflow amount across an indoor coil. The indoor coil is typically checked as the airflow must cross this coil to allow the refrigerant to either absorb (ASHP cooling) or reject (ASHP heating) the heat to the appropriate "sink." In summer, the "sink" is the outdoors, and during winter, the "sink" is indoors.

One of the most widely utilized methods when checking ASHP airflow has been the "temperature rise" method across the auxiliary or emergency (back up) heater(s). This method can be performed regardless of outdoor ambient temperature.

When performing this test, you should remember that typically, most air source heat pumps operate with the same airflow regardless of mode of operation. In cooling or heating, or during emergency heat or defrost, the heat pump simply delivers the "same" airflow per ton across the indoor coil. The only change is possible during the cooling mode, as water condensing on the indoor coil increases resistance slightly, lowering airflow amounts somewhat. Of course, you can also change blower speeds and CFM amounts for either cooling or heating on some ASHPs.

To check airflow (CFM) of an ASHP, you have to perform several measurements and use some math. The common formula for calculating CFM is:

Emergency Heat Output(Btu/h)

CFM= -----------------------------

Temperature Rise x 1.08

You must find the CFM per Ton traveling through the indoor coil during cooling or heating modes. To accomplish this, you should place the system in the emergency heat mode and place thermometers in the supply air and return air paths as close to the air handler as possible without being affected by the radiant effect of the heaters.

In the previous formula, CFM equals the emergency heat output in Btu/h. Since you will be checking heaters, you will be calculating electrical data. When finding Btu/h output of the heater, you will simply measure the voltage and the amperage at the disconnect for the heater(s) and record the values. This will require use of a voltmeter and an ammeter.

Supply voltage multiplied by amperage equals wattage. Wattage multiplied by 3.413 (Btus per Watt) equals Btu/h and you will then have the value for the CFM formula numerator.

In the CFM formula denominator, temperature rise comes from the difference in the return air and supply air temperature after the heater(s) has/have stabilized and a difference has occurred. This difference (sometimes called TR or ΔT) is then multiplied by a constant of 1.08 to find the adjusted temperature difference. Always pay close attention to temperature change when finding the difference in temperature.

This adjusted temperature difference is the denominator for the CFM formula.

When the formula is completed with the necessary inputs, the answer is the total delivered airflow (CFM) traveling across the heater in emergency heat mode. You then simply divide this value by the tonnage of the installed outdoor coil to find the CFM per ton. The cooling airflow (CFM) will be near to this value or slightly lower due to increased pressure drop from water condensing on the indoor coil during cooling. The ASHP compressor heating airflow (CFM) per ton will be a similar value to that found from emergency heat. The CFM per ton should be in the AHRI range to be acceptable.

If inaccurate air flow (CFM volume) across the indoor coil (evaporator in cooling, condenser in heating) is determined, this situation must be corrected prior to further analysis of the refrigeration cycle.

Determining ASHP indoor coil airflow (CFM) during emergency heat example:

Two (2) Ton Unit

240 Volts at disconnect

20 Amps at disconnect

Return air = 70ºF

Supply air = 88ºF
CFM = (240 x 20 x 3.413) ÷ (1.08 x 18ºF) = 843
843 CFM ÷ 2 Tons = 421.5 CFM per Ton

(This amount is acceptable per AHRI)

You should also check the outdoor coil for minimal clearance per manufacturer around the unit from shrubs, trees, and decks to allow for proper heat rejection in the summer and absorption in the winter. You can also determine the airflow across the outdoor coil by using the product specifications from the manufacturer as shown below. Most ASHP outdoor coils will typically deliver close to this amount if the coil is installed correctly and unobstructed.

Phillip A. Rains

Do's and Do Not's For Selection and Installation of Central Air Conditioning


If you make up your mind to have a central air conditioning system for your home or office, it is better you keep a few points in mind. These points can be considered as the "dos and don'ts" for choosing and installing your air conditioning unit.

Dos:

  • Firstly, you should be ready to spend some of your time for doing your research before choosing an air conditioning unit for your home or office. You are going to invest your hard-earned money for buying the unit and so, it is better to consult a good air conditioning professional for making an informed choice. Likewise, the unit should be installed by an experienced professional only. In general, installing central air conditioning systems for large buildings involves a lot of labor and so, only an efficient and experienced contractor will be able to carry out this work competently.

  • You should educate yourself about Seasonal Energy Efficiency Ratio or SEER because the old systems may cost you heavily in the long run. Energy bills of the old systems will be quite high and that is the reason manufacturers of new air conditioners take into account the latest standards of energy efficiency while producing their units. So, you should choose a unit that comes with excellent SEER ratings.

  • You should specify your budget and needs to the air conditioning professional who will inspect your home or office to determine the capacity of the air conditioning unit needed. It depends not only upon your budget but the size of the building, its orientation, the general weather conditions that prevail in the place you live and so on.

  • It is better you compare the features and costs of at least three brands of air conditioners before choosing the most appropriate one in consultation with your contractor.

Don'ts:

  • The fundamental rule for buying a good air conditioning unit is that you should never be hasty in buying and installing it. You may end up acquiring a unit of larger capacity than needed or an air conditioner of lower capacity that may not fulfill your requirements properly at all. This means that you should do a thorough research before making your choice. If you are not confident of handling the research, you can seek the services of an experienced air conditioning professional.

  • Buying and installing an air conditioner is certainly a big investment. You can not be doing it every now and then. So, you should not fail to anticipate your future requirements and have a central air conditioner accordingly. This does not mean that you should foresee what the size of your family will be after 10 years. It is impossible to make such predictions also. But, you can certainly look ahead and ideally plan for a couple of years or a maximum of three years and get a central air conditioning system appropriately. This rule applies even if you are planning to install a system for your office also.

  • You should not forget the fact that your contractor may have tie-ups with certain manufacturers and hence, he may try to push those products. You need not necessarily buy those products just because you have chosen this contractor. You should do your research meticulously and get the most suitable product installed for your home or office.

  • Nowadays, you get air conditioners with good SEER ratings. You can not afford to ignore this aspect because units with good SEER ratings will get you excellent savings on your energy bills.

  • Similarly, you should not ignore the aspect of providing high quality air to your family members or office staff. So, you should make it a point to choose only highly efficient air conditioners. Otherwise, the health of your family members or your employees will be put to great risks.

If you keep the above points in mind, you can certainly get a good central air conditioning system installed for your home or office.

Air Conditioning Service Is Essential for Extending the Life of Your Unit


When you are looking to extend the life of your unit, you are going to find that regular air conditioning service is going to be key. Elements inside of the unit can break down over time and this can cause your system to begin to lose the level of efficiency that it once had. Because of this, you will want to meet with a reputable air conditioning repair service and begin working on having someone look at your system, so they can provide you with the best overall assistance in lengthening the life of this unit.

It is important that you understand that regular service is going to be required to keep your service operating smoothly. What most people will do is schedule a spring and fall checkup to ensure that everything remains safe and effective with your system. You might find that minor problems do come up at this time, but by focusing on these issues, you can avoid bigger problems by keeping on top of the service requirements that you have.

One of the things the air conditioning service company will do for you is clean your unit. This is going to be things like removing debris and other items that can add to the problems the air conditioner can face. Along with that, you are going to find that you will need to look beyond just the interior pads. It will be important that the ducts and vents are all reviewed so you are able to ensure that your system is going to be protected from issues that could arise in this process. What you are going to find is that before the service technician comes out, it can be helpful for you t go over the vents in your home with vinegar and water as that can reduce the amount of work they will need to do considerably. With the newly cleaned vents, you might also notice a rise in the efficiency of this unit as well.

Keep in mind that during this process other elements are going to come into play. For example, if you have a ground unit, you will want to ensure that there are no leaves and debris that are surrounding it as that can cause some potential problems for you.

Ultimately, you will want to take your time to find the best company to provide you with exceptional service. There are going to be a number of different options that you are going to have when it comes to finding the best source for your air conditioning service. It will be up to you to decide between several different options and ensure that the one you end up going with meets all of your basic needs in the process. That will be the best way to know your system is setup to work effectively and remain free from any minor problems that could have caused them to come out and spend a considerable amount of money fixing your unit.

What Does a Heating Contractor Do - 3 Things They Can Help With


Many people might have problems with certain aspects of their home and don't even know who to call to assist. You don't always get the best results by simply calling a handyman to come fix certain machines in your home, which is why it's important to look into special options when the time comes for difficult tasks. For instance, if you're asking yourself what does a heating contractor do, you need to examine several things they can assist you with and call them when you're in need. Consider the following 3 things that they do on a regular basis and get professional help when the time is right.

First and foremost they fix, install and regulate heating systems in a home. Whether you have central heating or you have another type of heating unit, they can make sure that you're getting heat when the temperature drops. Whether it's the middle of winter or you're looking at a preventative measure, they can assist with figuring out what needs to be installed, what needs repair and how to do it without risk to you or your family. They can also help inspect and fix air conditioning units as they are often times tied together.

Another thing that a good heating contractor can help with is insulating a home. If you're losing heat in your home and you're wondering what's wrong, they can look and see if there's an escape due to insulation that has either eroded or been poorly distributed in your home. By fixing certain areas that require insulation, you can expect to remain warm in the winter and cool in the summer with relative ease. Alongside looking for leaks in the heat structure of your home they also check ducts for leaks and cleans any areas that could cause fire or much worse.

Lastly a good heating contractor can step in during any given time of the construction process. Whether it's from the first initial parts of the building, or it's after the fact. They can come in and assist or completely change the heating as well as cooling in the home or office. They can assess what will be needed, the capacity of what the power grid can hold, and create a long lasting solution for homeowners. Without proper instruction, DIY methods can often times fail when dealing with complex heating issues. Always seek professional help when dealing with this trade.

Daikin Air Conditioners


In some countries, the weather is always hot and the air is ever humid. And there are days in these places that the outside temperature is unbearable and the degrees (Celsius/Fahrenheit) are whopping high. A cold glass of lemonade and a swim at the beach are tempting. But of course, one always can have cool temperature inside the house, thanks to a method called air conditioning. Air conditioners are usually found in homes nowadays because they provide clean air, normalize the humidity level and lower the degrees (Celsius/Fahrenheit). No more worries now about the onset of hot weather.

There are many brands of air conditioners out there in the market. One of them, Daikin, is a Japan-based multinational corporation that is originally a chemical firm but has long since expanded to electronics specialization and industrial technologies development. Daikin has eight industrial and management divisions: Air Conditioning, Chemicals, Semiconductors, Transportation & Refrigeration Systems, Electronics, Hydraulic Fluids, Defense and After Sales. The company is one of leaders in the air conditioning industry, beginning with the fully-assembled Mifujirator in 1951. Together with industrial giants Fujitsu, Mitsubishi and others, Daikin is an active competitor in the market. It produces air conditioners for all purposes: home, commercial and industrial uses. The following is an overview of one of Daikin air conditioners, the FTXG series.

The Daikin FTXG series is wall-mounted type of air con for residential use. When it comes to visuals, its front panel look is very simple and stylish, and can fit in with any type of room without breaking the interior design. It is very 'easy-on-the-eye'. Its Mat Crystal Panel is a clear plastic with a frosted surface, giving it an elegant appearance. The Daikin FTXG series is also noticeably thin, about 15 cm for the indoor unit, which adds more to the visual appeal.

Through the use of titanium apatite photo-catalytic air purifying filter, the Daikin FTXG eliminates bad odor, bacteria, virus and allergens in the air. It supplies clean, cool air. This air con also has a draft-prevention operation, delivering horizontally-positioned cool air during cooling; and vertically-positioned hot air during heating. Also called the comfortable mode, it delivers warmth directly to the feet. The Daikin FTXG, unlike most air cons, is also designed for a peaceful and quiet operation. The outdoor unit operates at 43 dB, almost like the sound of a quiet library, while the indoor unit operates at 27 dB, comparable to midnight in the suburbs.

What Determines Heat Pump Prices?


Before you look at heat pump prices, you should have an idea of exactly what these devices can do. It is a machine, which moves heat from one location to another. These devices have the ability to either heat or cool an area. Most use the air as their source of heat. Some types use the ground for their source of heat.

If you have purchased a pump, then you must have a professional do the installation. It is not recommended that you install it yourself. Heat pump prices vary between manufacturers such as Trane, Carrier and Goodman. Stick with a name you can trust. You do not want to purchase a knock off heat pump that does not provide the service and reliability of the quality name brand products.

You may find heat pump prices that are quite low for second hand units. However, it may not be a good idea to purchase a used device because you just do not know if it is in good condition or not. In addition, there most likely will not be a warranty left on the machine. It is recommended that you buy a unit that comes with a warranty.

Another aspect that affects heat pump prices is the actual capacity of the heat pump. A large capacity pump will obviously demand a higher price than a smaller unit will. Determine what your needs are concerning the size of the unit. If you need to heat or cool a large area, then you will most likely require a larger unit.

In regards to heat pump prices, keep in mind that there will be installation charges as well. Some companies may include the cost of installation in the price of the pump while others will add it on afterwards. Gather as much information as possible before making the actual purchase. When it comes to your research, treat it as you would any other appliance. The actual cost to operate the unit is a good measure of its true cost.

If you are looking for a break in heat pump prices there could be some situations where you will be able to find a dealer or manufacturer offering a seasonal promotion or discount. This may often happen if a store has a surplus of older models and they want to sell them quickly to make room for the new models coming in. If you happen to know a good furnace installer, contractor then speak to them regarding any possible deals their company may be having on pumps, or perhaps they can make a good recommendation on a deal you have not heard of yet. Speaking to industry professionals is always a good practice regardless of the specific industry or item concerned. They will have first hand knowledge and valuable experience that you would not get anywhere else.

There are some states and federal agencies that provide information on heat pumps that allow the average consumer to calculate their cost savings such as the popular Energy star system. This allows the consumer to effectively compare heat pump prices.

Thursday, April 25, 2013

Heating Choices For Your Home - Learn About The Pros And Cons Of Each System


In the prehistoric days of the caveman home heating was a fairly simple affair. You merely gathered wood, formed it into a pile, and ignited it. Then to keep warm you sat as close to the fire as possible, as no system of ductwork had been invented yet to propel the warmth to other parts of your cave. Thankfully, home heating has come a long way since then, and now there are several choices to keep you and your family warm and toasty at night.

Considerations Regarding Your Ultimate Choice Of Heating

I have lived in several different homes over the years, and each possessed its own unique form of heating. Currently, my East York home is heated throughout by a new high-efficiency furnace; one fuelled by natural gas. Whether buying a property resale or having your dream-home built from scratch, there are several considerations you should keep in mind when making or modifying your heating choice.

1) Hardware cost factor. How much will your choice be to initially install, and are any home modifications necessary to accommodate your decision? (example: gas furnaces need ductwork; electric baseboard heating does not).

2) Fuel cost. Furnaces run on fuel (oil, gas, electricity) and each has a distinctive cost. Can you afford to pay the monthly bill using your chosen fuel?

3) Maintenance and durability. What will be the cost that your selection for home heating requires, in order to keep the chosen unit running smoothly year after year? (example: furnace reliability)

4) Basement apartments. Heat rises, so if your entire home is heated by just one furnace, the upstairs will be much warmer than the basement - resulting in a cold tenant or irate in-law. Consider employing a different delivery system so that both units are adequately kept warm (or air-conditioned for that matter).

5) Indoor air quality. Most furnaces burn fossil fuels. This creates the potential - if proper combustion does not occur or there is inadequate venting - for the build-up of carbon monoxide in your home. Naturally, these types of systems should be cleaned and serviced yearly to detect any problems, but if this is a concern for you then another system should be used in your home such as electric baseboard heating, which does not emit life-threatening carbon monoxide.

Types Of Heating

There are three main types of heating that currently dominate the marketplace, and each comes with its own strengths as well as a few weaknesses.

Electric Baseboard: This type of heating is relatively inexpensive to initially install yet can be prohibitively expensive to run. My family and I once lived in a home with electric baseboard heating, and much to my chagrin my hydro bills were astronomical. Basically, this form of heating is like having a space heater in each and every room of your house. They are individually controlled so each room in your home can be set at a different temperature. This is a positive should different members of your family react to the cold differently.

Also, as there is no ductwork involved, air and dust which can cause allergies to flare, are not blown throughout the home. The units themselves rarely need maintenance, and can last for years. Other than its operating cost, this systems one major drawback is that because no ductwork runs throughout the home, one cannot easily put in central air conditioning. A ductless system must be employed; one that can typically cost about 30% more to install and operate. A less expensive way to cool select rooms (generally bedrooms) would be to install simple window cooling units. Also, this form of heating can oftentimes dry out a home leading to headaches, dry throats and skin. A separate humidifier would need to be bought to bring much-needed moisture into your home.

Forced Air: This common central heating system is one which utilizes heat that is generated at a single location (typically a furnace), then distributes the warmth throughout your home via a series of ducts. It can be initially expensive to install depending on the type of furnace you purchase. High efficiency furnaces are becoming the norm throughout the building industry. These units generally draw their combustible air from outside the home. They also require no chimney as they vent directly outside. Typically, a furnace can last upwards of 20 years with regular servicing and maintenance. Furnaces can run on gas, oil or electricity, and each fuel comes with its own market price.

It would be prudent to do a cost breakdown to see which fuel best suits your situation. Remember, if you choose oil you will need to purchase a storage tank for it, and this will add to your initial cost. A positive to having a forced air heating system in your home is that air conditioning can be easily installed, as you already have the ductwork in place to circulate the cool air. But, having that same ductwork brings a negative. Dust, pet dander and pollen are drawn into the furnace via the cold air return and then are blown back out into every room of your home, wreaking havoc for those with allergies or asthma. This is why it is imperative to clean or replace the furnace's filter on a regular basis. An added bonus to this form of home heating is that a humidifier can be easily installed directly to the furnace, adding much-needed moisture to the home on extremely cold, winter days.

Radiators: This form of heating is probably the most noticeable in one's home simply because radiators are generally large, accordion-shaped, heavy units that protrude out from the wall thereby eating up precious floor space. Many older apartment buildings employ this form of heating. Basically, there is a boiler in the basement which heats up water, which in turn travels about the home through a series of pipes to each room's radiator. As with baseboard heating no ducts are used therefore dust and pollen are not blown about the home. But oftentimes these pipes are wrapped in asbestos to aid in keeping the water warm during its travels. If you suspect your pipes are wrapped by this material then it would be wise to call in a professional to discuss your options. Do not tamper with or remove any of the suspected material yourself.

As with electric baseboard heating, you would need to put in ductless air conditioning or window units as no ductwork lines the home, which will add to overall cost. As well, you will need a separate humidifier as the air will become dry. The current generation of boilers are extremely efficient though, and take up very little floor space themselves. Again, with this type of system you still need to utilize a source of fuel to heat the water, and this makes for an ongoing monthly cost; one that needs to be factored into your budget.

Typically, here in Canada, our homes need to be heated for several months of the year. Therefore, it is prudent to always maintain whatever system you have, and keep it up-to-date. By doing so, means you won't find yourself inadvertently left out in the cold.

How Air Conditioner Works - What Are the Components?


When the hot climate becomes intolerable, one would think of the air conditioner as a way to cool off and stay away from the sweltering heat. Air conditioning helps in maintaining the temperature of the indoor air at a cool temperature.

Basically it modifies the condition of the air. In other words, it is an appliance used to stabilize the temperature and the humidity of the air. An air conditioner works similarly to the refrigeration cycle. A refrigerator cools the smaller area to preserve the food but an air conditioner cools the entire area (one or more room) at the same time.

The mechanism includes the compressor, condenser and an evaporator. It is also designed in two forms such as split system and package system. In a split system compressor, the condenser is placed outside where as the evaporator is placed inside the room.

In the package system, all the components are placed outside the room. The evaporator used helps in circulating the air. Air conditioners also use a chemical which has the tendency to convert liquid to gas and gas to liquid.

Air conditioners that are used in controlling the temperature are of many types and it varies in sizes too. Most commonly a smaller unit is used in the residential areas and a larger unit is used in the commercial and industrial sectors. An air conditioner can be distinguished with the use of the air systems such as conventional air system and high velocity air system.

Many people consider the high velocity air system as comfortable as it maintains the temperature in the room and at the same time less in price.

A point of difference

A home air conditioning system can make a vast difference in the day to day activities of a person. Instead of starting a day restless, it helps the person to start the day in peace. For instance, in a Houston theatre, after the installation of air conditioner, it has seen major increase in the number of people visiting the theater. I'm sure, you wouldn't want to catch a movie or theatre show without air conditioning.

Obviously, it proved to be a beneficial one in the modern world. When a machine has a tendency to change a person mood, who would want to miss it? An air conditioner is also designed in an eco friendly environment. It is designed in a way that it wont harm the ozone layer.