Monthly Archives: May 2017

HVAC CONTRACTORS

HVAC Contractors for Commercial Buildings – 5 Things To Look For

By Jed C. Jones Ph.D.

11.-hvac-contractors-300x296 HVAC CONTRACTORS

HVAC Contractors

HVAC (Heating, Ventilation, and Air Conditioning) systems are used for the heating and cooling of residential and commercial buildings. They also have an extra benefit that most people are unaware of. Many HVAC systems are able to purify the air inside a building while maintaining a constant temperature.

Such systems are able to remove contaminants that include chemicals, organic compounds, and odors.

Companies all over the country are installing them in increasing numbers, and there are many reasons why you should have a system installed as well. There are, however, some things to be aware of when installing your own HVAC system.

5 Things To Look For HVAC Contractors

Be sure to look for these 5 things to ensure your search for an installer is hassle-free :

  1. First, be sure to find a company that is certified. On occasion there may be uncertified companies advertising their services, but in truth may be unqualified to do so.
  2. Always give close attention to the experience of the company. It is never good to hire an inexperienced company. Before hiring, ask the company’s representatives to show you their recent projects; this will help you know which company is your best selection.
  3. Once you have selected a certified company, then obtain a written contract. This way you will be able to see what services they will be performing for you and will allow you to avoid any financial issues in the future.
  4. See whether the company provides post-installation services or not. There are companies that claim that they will offer post-installation services, but they do not do so in an effective way. Therefore, this service should be in written in the contract as well. These maintenance and repair services will be essential for the upkeep of your HVAC system, and will be more effective and efficient if preformed by the same company that installed the system in the first place.
  5. Finally, make sure that the company has safety and health policy for its employees. Accidents are, unfortunately, always possible, so in order to protect yourself from footing the bill in the case of an accident, be sure that the company has insurance for your own protection.

With these five things, you should have no problem determining which company to use to install a new HVAC system. Remembering these five tips will save you money, time, and effort.

HVAC Contractors

check out my other guide on : HVAC Contractor | Furnace Repair | Air Conditioning Company

FURNACE REPAIR

Emergency Furnace Repair

By Keith Burke

10.-furnace-repair FURNACE REPAIR

Furnace Repair

A furnace emergency can be difficult to resolve, but an emergency technician can quickly address any mechanical failure. Common emergency furnace repair problems can occur at any time regardless of the age of the system.

Getting to know the furnace

If the motor is damaged, the system can stop working altogether. Usually before the furnace motor stops working altogether, there will be a humming noise. This is one of the most common furnace failure problems.

The tasteless, odorless gases can be potentially fatal when inhaled at high levels. Homeowners can look for symptoms like dizziness and flu-like symptoms. This can often mean that the furnace is on the brink of failure and may need emergency repairsWhen the emergency switch shuts off on accident, a fuse or circuit breaker could become damaged.

Knowledgeable technicians available around the clock

Knowledgeable technicians available around the clock are able to address any emergency furnace problems. Trained technicians have the required training and the necessary expertise to ensure that the repairs are done right the first time. Technicians experienced in working with different models of furnaces can have the system up and running quickly, restoring safety immediately to the home.

Common furnace repair problems can be potentially dangerous for households. Calling a technician to quickly handle any repairs can quickly make the home safe for the residents. Trained technicians available around the clock make it possible to have the furnace quickly repaired to get it back up and running in no time.

Furnace Repair

check out my other guide on : What is HVAC | Air Conditioning Company | AC Service

AIR CONDITIONING COMPANY

Tips to Choosing Air Conditioning Company

 By Stan Schneider

09.-AIR-CONDITIONING-COMPANY AIR CONDITIONING COMPANY

AIR CONDITIONING COMPANY

Homes throughout the world use an air conditioner during the warmer summer months to keep the home cool. These units usually use a compressor and release cool air, at a desired temperature, into a room. There are various different air conditioners available on the market, customers can choose from single room units to entire home or building units. You will want to find an Air Conditioning company that can supply and install the unit for you.

Air conditioner installations are not a DIY job, even for a skilled enthusiast. It’s always advisable to find a reputable and reliable company that can provide you with the best unit for your property and install it in a professional and reliable manner. The first step is to research online and find companies that provide this service in your area. You may find quite a few companies. It’s always advisable to get at least three estimates, this way you can compare them against each other and once you’ve done some research on the company, you can make your final decision.

When you’ve chosen three companies, ask them to come in and give you an estimate. It’s always a good idea to listen to their suggestions and see what units they recommend for your home. Always get your estimates in writing. Having your estimates in black and white make it easier when you want to compare the quotes against each other. Before comparing, it’s worthwhile doing a little background research on each of the companies.

Choosing Air Conditioning Company

The best place to do any research is online. Type the company’s name into your search engine and see what comes up. Remember you are trying to determine their reputation and reliability. Most people will write their experiences on various forums online; this is where you will find the honest customer reviews, which can assist you in your decision. Armed with the information you have found online, you can now review the quotes.

You may find one company has a stellar reputation and good reliability, but they may come in slightly higher than the other two. It’s always important to not go for the cheaper quote, just because it’s more affordable. While price will play an important role in your decision. It’s also important to ensure the air conditioner company you choose has the reputability and reliability to back up their quote. If you find one of the quotes is dramatically more expensive or cheaper than the others, it’s worthwhile throwing this one away.

Once you’ve worked your way through the quotes and made a decision on one of them, it’s time to contact the company to discuss time frames and payment information. A company shouldn’t ask for complete payment upfront, you may be required to pay a deposit with the balance on completion. Also determine what type of warranties they offer on their air conditioner units. You don’t want any unexpected surprises. A company that believes in their product will offer a good warranty on both the product and the labor.

Air Conditioning Company

check out my other guide on : What is HVAC | AC Service | Air Conditioner Service

AC SERVICE

Air Conditioner Repair: What You Need to Know

By Margaret Winfrey

cropped-sampul1-220x300 AC SERVICE

AC Service

Before trying to carry out air conditioner repair in your home or office, there are certain aspects of air conditioning systems you should know about. When their air conditioning system breaks down or develops a fault, many people try to fix it themselves without fully understanding the concepts involved. However, it is possible for you to carry out a basic air conditioner service once you understand the principles, although AC Service is best left to the professionals. The normal home or office air conditioner works by simple physics, and consists of two discrete units: the condenser and the evaporator.

Both the evaporator and condenser are sealed units and you cannot carry out any AC Service to these yourself: you will have to call a trained professional. What you can do is to keep everything clean and all the mesh guards and so on clear of debris. You can carry out simple air conditioner service yourself, but not HVAC repair. Here are some basic air conditioner repair, troubleshooting and service tips.

  1. System fails to run.

Check the fuses or circuit breakers. Try lowering it by 5 degrees, and if that fails you need a professional HVAC repair engineer.

  1. No Cooling.

Again, check the thermostat and try lowering it. If that doesn’t work check the condenser air intake. It might be blocked, especially in fall if there lots of leaves flying about. Check the fins of the fan are straight, and if not then straighten them. If nothing works, then call a professional engineer.

  1. Erratic Cooling

For this and all other faults, all you can really do is to clean the condenser it as far as you can, and if that fails call an engineer. It is not uncommon for units to be blocked by vegetation of one form or another. The condenser will likely be sitting on a concrete pad: make sure that is level, because concrete can sometimes break down and put the condenser and the motor out of the level. That can affect its operation.

The condenser and evaporator are sealed units, which it is why it is so difficult for amateurs to carry out their own air conditioner repair. A blocked or dirty evaporator is the most common problem that you can fix yourself.

It is advisable to use a professional air conditioner repair service, but one that first offers you a free estimate. Some charge for the estimate, so you are obliged to pay them whether you accept the estimate or not. You often find that firms that offer a free estimate are both relatively expensive and do a good job.

Also, make sure they give you a guarantee – for time and any parts that they install. They can use the parts in your old equipment, so don’t give it to them free. You will also be advised to take a 24/7 service deal. Because you don’t want to be sweating when your HVAC unit breaks down, ask for a discount. You never know your luck!

AC Service

check out my other guide on : What is HVAC | Air Conditioner Service | HVAC Systems

AIR CONDITIONER SERVICE

3 Types Of Air Conditioner Service Which You Need To Know!

07.-Air-Conditioning-Service AIR CONDITIONER SERVICE

Air Conditioner Service

Air conditioner service is needed during summer. It is always required for every country. Whether they have four seasons or two seasons. Air conditioner service helps you to get fresh and cool air inside your house, while hot air outside the house.

Nowadays, many companies offer air conditioner companies with various costs. It seems that customers should be smart to choose one of them. Many of them put big advertisements in media to catch your attention. Some of them give cheaper cost with standard service. Some of them offer many advantages and look different from another.

Every air conditioner service you use, you have to remember one important thing. Before you are hiring air conditioning company, you have to know the track record and how experience is your air conditioning company has. Make sure the company doesn’t have many complaints from customers even many compliments from customers. Don’t be tricky, if it offers lowest cost, yet using uncertified technicians.

Ask the suggestion from people surround you is always good. Word to mouth, you will know what company which suites on your project. You do not need to hire big company to do small or simple projects. Do not over look the small company. As long as a company has licensed, also it hires certified technicians, it is more than enough. It will save your money.

Several Types Of Air Conditioner Service

However the main purpose of using air conditioner service is on three types of service only. First is air conditioner installation. Second is air conditioner repair. Third is air conditioner maintenance. Here are the explanations of them!

  1. What is air conditioner installation in air conditioner service?

Air conditioner installation is adding air conditioner equipment in your house. You have to understand your home size before install the air conditioner in your house. Consult to your air conditioning company, what type of air conditioner which suits for your house. Air conditioner has several systems such as window units, split systems, central system and portable units.

  1. What is air conditioner repair in air conditioner service?

There are several signs you need air conditioner repair in air conditioner service. First, your air conditioner cannot deliver cool air. Even though you have set the lowest temperature. Second, the air conditioner flows strange smell and sounds very noisy than before. Third, if you find any leakage with air conditioner units.

Last, if you notice that air conditioner switch automatically into on and off many times more than before. It called short cycle. Those problems seem that you need to repair your air conditioner. Make sure you know which air conditioner company who can handle your problem. As long as you hire expert technicians, it means you can get comfortable air soon during summer.

  1. What is air conditioner maintenance in air conditioner service?

Lack of maintenance leads to repairment and affects machine. If your machine always breaks down, sooner or later will break totally. The general maintenance can be changing the filters, cleaning the evaporator and condenser, removing debris from surrounding, lubricating the parts checking whether any clogged in drainage and many more. Call the technicians if you cannot do those jobs.

Air Conditioner Service

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HVAC SYSTEMS

Obstacles to Air Balancing Residential HVAC Systems

By David Richardson

Consider using a residential pre-balancing checklist

Air balancing is becoming more common across the country and being enforced on many new residential HVAC installations due to code and utility program changes.

06.-HVAC-System-300x251 HVAC SYSTEMS

HVAC System

Being accountable for proper airflow delivery causes a tech to examine every portion of an installation differently. Do the systems your company services meet the tough standards needed to achieve proper air balance? Let’s look at some of the most common obstacles to achieving a successful air balance on a residential HVAC system.

NO BALANCING DAMPERS

The No. 1 obstacle to balancing any forced-air system is dampers missing from branch ducts. A tech will have a hard time adjusting airflow to individual registers when these valuable accessories are absent. On many older duct systems, balancing dampers came standard on every installation. Installations never recovered from this mentality with dampers viewed as obsolete. This should be a last resort, not a first option due to noise and added complications while balancing.

One trick many balancers have tried when dampers are missing is to use registers to balance airflow. Noise is also an issue with this method. To prevent this from being an issue, everyone from the general contractor to the installation crew must be on the same page when air balancing is part of the project. It can’t be an afterthought once everything else is in place.

RESTRICTIVE DUCTS

Our industry has a major problem with restrictive duct systems based on rule of thumb sizing. If techs are still using the 0.10 rule of thumb to size duct systems, chances are very high the air balance will fail.

Additional restrictions occur in the installation of the duct system. Properly sized duct systems will fail an air balance when poor installation conditions exist. Be aware that both design and installation are crucial to a successful balance. One of these poorly carried out characteristics can cancel out the other done correctly.

DUCT LEAKAGE

Air must make it from the air-handling equipment to the register. Airflow lost through duct leakage is unavailable at the register and will result in an airflow shortage. When a duct system leaks, there is no controlling air’s final destination. If conditions exist in a duct system that allow air to bypass its intended delivery point, it will take the path of least resistance all day long.

BLOWER PROBLEMS

Unfortunately, this may be incorrect for the airflow needs of the installation. Many balancing residential systems are created by companies that work outside the HVAC industry and do not have the training to set up a blower for the required amount of airflow. The typical piece of equipment can’t move the necessary airflow when static pressure is over this nameplate rating.

There are some fans out there that can’t move the required airflow even when it registers below the 0.50 rating. The only way to discover these is to do the research. In many cases, weaker fans can barely handle the addition of a coil and filter. To prevent this from being an issue, the installing contractor has the responsibility to assure the equipment has a fan capable of moving the right amount of airflow. It’s a tough discussion when a brand new piece of equipment can’t perform as intended.

RESTRICTIVE COILS AND FILTERS

Newer coils are an obstacle air balancers often deal with. Coils made in recent years have more fins per inch and thicker slabs than previous models. Be sure the installing contractor refers to manufacturer coil pressure drop data before they randomly choose a coil. By using the coil’s wet/dry condition and desired fan airflow, they can determine if the pressure drop of the coil is within an acceptable range before installation occurs.

Incorrectly sized filters and lack of surface area are another challenge. Any balancer who has attempted to balance a furnace with a 5-ton blower with a single return drop and a 16-by-25-inch filter mounted on the cabinet knows the frustration of trying to overcome obstacles such as this. When it comes to filter sizing, it’s always safe to keep the filter face velocity below the manufacturer’s recommendations.

MAINTAINING PROPER BALANCE

To assure a successful air balance, the methods a tech uses to install systems will probably have to be adjusted. Begin by evaluating the top obstacles mentioned above and see if they are present.

HVAC SYSTEMS

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WHAT IS A HVAC CONTRACTOR

What Do I Need to Know Before Choosing an HVAC Contractor?

By Mike Kellman

05.-what-is-a-hvac-contractor-300x225 WHAT IS A HVAC CONTRACTOR

what is a hvac contractor

When choosing a contractor, beware of those who only work in single services like air conditioner repair service, as they will not be able to provide for everything you need. Sometimes these contractors will have a sign board outside their offices, advertising HVAC contractors and services; in that case, you should avoid them. While they may provide you with standard air conditioning, when you want hot water fittings in your home, or heat elements in your room, they will not do it themselves. Instead, they will pass their work on to other service centers, thereby earning commission money but costing you more.

Another thing to take note of is the machine itself and its working limit. At any time, a problem may arise and when you need it the most it may not work. Because of this, the company you choose should have an on call service and provide home visits whenever necessary. As a client, you shouldn’t have to go to an office to ask for help, especially since you already pay for a service charge and a spare change. If the contractor is efficient, they will remake the old spare and adjust it until it works for you. However, if you have a less experienced contractor, they may not be aware of or capable of adjusting the old component. In that case, he/she will simply install a new spare, wasting resources and costing you money.

experienced HVAC contractor

For these reasons and more, it is paramount that you choose an experienced HVAC contractor who will complete their service and provide a guarantee for some months. Whether you have a unit in your home or office. A skilled HVAC contractor is a wonderful resource to have on hand. If any problems arise with your unit. All you have to do is call and your contractor will come and correct the issue immediately. Because of the warranty plan, if a contractor is needed a second time. They will not charge anything and they will work hard for all from your device. Pre-scheduled maintenance appointments can be set up to avoid problems. So stop suffering during the hot and cold months and call a skilled HVAC contractor to make your life enjoyable.

what Is A HVAC Contractor

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HVAC CONTRACTOR

Maintain Your Comfort With an HVAC Contractor

By Antoinette Ayana

04.-hvac-contractor-300x201 HVAC CONTRACTOR

HVAC Contractor

 If you find yourself in need of someone to repair your air conditioner, heater, or ventilation system, then you are contacting what is known as an HVAC contractor.

This acronym stands for heating, ventilating (or ventilation), and air conditioning.  These systems are a subdiscipline of mechanical engineering, based on the principles of heat transfer, thermodynamics, and fluid mechanics. This industry is a global endeavor, with many avenues including education and research, equipment design, manufacturing, and sales. It also includes operations and maintenance.

HVAC Contractor Certification

Types of Certifications

  • This certification gives the technician the right to work on larger systems using high-pressure refrigerants such as residential air conditioning and heat pumps, as well as supermarket and passenger ship refrigeration.
  • That specialist works on low-pressure refrigeration systems such as chillers used in the food industry.
  • Universal : This type of certification allows a contractor to work on all systems.

When to Call an HVAC Contractor

Nothing in your home affects you and your family’s comfort more than your heating and cooling system. However, unless your heater goes out in a blizzard or your A/C goes out in a heat wave, we rarely pay much attention to these units. When not properly maintained, these systems can use more energy than they should. Dirty cooling and heating systems can all contribute to higher energy costs. Some of these tasks you can handle yourself while others require a professional.

Regular Scheduled Maintenance

A heat pump requires one annual checkup by a technician. A gas-fired furnace filter should be changed every month or two during the heating season, and a yearly checkup should be performed. An oil-fired boiler requires annual maintenance, and an A/C unit requires regular checkups, but some manufacturers are different, so check your owner’s manual. Your cooling and heating system is by far the most multifaceted system in your business or home.

HVAC Contractor

check out my other guide on : Air Conditioning Repair | What’s HVAC | What Is HVAC

What is HVAC Tips to Make You AC Performs Efficiently

What is HVAC Tips to Make You Air Conditioner Performs Efficiently

03.-what-is-hvac-300x225 What is HVAC Tips to Make You AC Performs Efficiently

what is hvac

You may wonder what is HVAC? Many homes in our country used HVAC (Heating, Ventilating, and Air Conditioning System) to increase or decrease the temperature to adjust the situation.

This such as device can be unaffordable for middle income and needs a lot of energy to spend. So it’s better to know further about what is HVAC. Since a smart people who own this will get a better experience throughout the usage of this device and save your money, and of course get your home healthy.

What is HVAC system component?

So, what is HVAC? In the central system of HVAC is a unique, since some elements usually got to be installed outside your home. And some elements got to be installed inside your home. The places that normally get installed inside your home are in the attic, in the basement or even closet. You will find the fireplace (gas, oil, electric) and the portion of evaporator air conditioner. You will also notice the blower that could perform both air conditioner and fireplace? Now you got a glance at what is HVAC system.

Ducts are being attached to the blower, and then the tubes serve as a channel to pass all heated air and cooled air to the entire room of the house. What are HVAC special cases that need to know?

Well, a furnace won’t be necessary if your HVAC system works in pumping heat. An expert explains what is HVAC ‘’ so actually the system is regularly working in the mechanism, it pumps heats and makes the room cooler, and reversely work in the winter to increase the temperature.

Indoor And Outdoor Components

What is HVAC elements to pay attention? Indoor and outdoor components will still be needed in a heat pump system. Compressor and condenser components of the air conditioner are placed outside the house (heat pump) that are installed in a metal with a big fan stick to it.

The packaged system is one of the alternatives to use in a split system, so what is HVAC packaged? Outside the house, all of the components will be installed into one single unit. With ducts passing through the wall of the house.

Now, you know what is HVAC package and how it works, you may see that it could be a better choice for you who want to keep your space open for the new interior and still have the cool and heating equipment. ‘’V’’ installation could be the option for your HVAC. What is HVAC ‘’V’’, usually a household rely on infiltration, or maybe an air which seeps through cracks and gaps in the shell of the home for a little fresh air.

Experts moody says, ‘’ when indoor air quality is having a great impact in human health problem, so, the systems of mechanical ventilation become more used by the household.  Do you want to know more about ‘’ventilation”? here’s the info.

  1. Heating

    Burning gas and oil in a chamber is the way to put on the fireplace, air is circulated by blower throughout the chamber, and then heat will be absorbed first by air before it flows throughout the house. In term of by products Combustion gases are employed for burning oil and gas, some are lethal. A metal vent the gases to the outdoor, combustion chamber got the air for the fire from a pipe. Conditioned air is pulled from inside the home.
    When the combustion uses air, cold air seeps shell’s building, that makes the building cooler, and better efficiency.

  2. Cooling

    What is HVAC cooling system to achieve efficiency? Cooling is attained via the electric air conditioner, the compressor compresses the refrigerant gas to yield high-pressure gas. This high-pressure gas is pumped by a compressor via radiator similar to a condenser coil of copper, fins, and tubing where the heat is transferred by a large fan to the outdoors. This is all done on the AC equipment. Next, the cooled air gets compressed, it pumps refrigerant liquid into the house through the copper tubing.

    Arriving at evaporator coil. And it will vaporize from a liquid to a gas again. A natural device of this shifts from liquid to gas is that heat is absorbed by refrigerant quickly from the air and blown through evaporators. Cooled air’s circulated throughout the home via the ducts. So what is HVAC cooling mechanism actually generates? The refrigerant head back outside to the compressor, then the cycle starts over and again and again.

  1. Ventilation

    What is HVAC to increase air quality? Based on the EPA, the risk of contamination at indoor air is five times higher than outdoor. As a citizen, we spend 90% of our times indoor. That’s why an indoor air quality has a big impact on our health. More and more mechanical ventilation’s become famous and often be put together along with HVAC system to ride of unhealthy air inside the room and bring a healthy air inside. It’s so simple like a set of ducts with a fan that can that clean the air up indoor and brings fresh from outside. However, it consumes a lot of energy. The newest method to overcome this problem is that use the Heat Energy Ventilator and Energy Recovery Ventilator.

This kind appliances planted to the ducts and make an additional muffler ducts and a supply to the outdoor. And then the unit get ride of dirty air from the room. And bring a healthy air from the outside to the inside. Now you have all explanations of what is HVAC.

What Is HVAC

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WHAT’S HVAC

What’s HVAC And How Does It Impact The Environment

 By Jon D Aguilar

 

HVAC-logo1 WHAT'S HVAC

WHAT’S HVAC

“Green” is the latest buzzword in the HVAC industry. These systems were designed to heat, cool and ventilate air, but this added comfort came with a cost. When chemicals used were found to be harmful to us and the environment, steps were taken to phase them out and use more eco-friendly materials.

What’s HVAC ?

Do you know what’s HVAC ? HVAC is an acronym for Heating, Ventilation, and Air Conditioning. Ventilation may control the flow of air for both heating and air conditioning. However, ventilation also includes many more tasks.

Ventilation

Aside from distributing air that has been heated or cooled, ventilation can encompass all processes for exchanging air inside a given space. It may be necessary to ventilate in order to :

  • Refresh Oxygen Supply.
  • Remove Carbon Dioxide.
  • Eliminate Bacteria.
  • Reduce Moisture.
  • Prevent Odors.
  • Clear Dust.
  • Circulate Natural Heat.

That means it happens in one place and is distributed throughout the vents. Modern skyscrapers work by letting hotter air escape through the top of the building while simultaneously drawing in cooler and fresher air from the bottom. This type of natural ventilation is seen as reducing the burden on the environment.

HVAC Systems And The Environment

Speaking of the environmental impact, you may have heard a buzzword associated with HVAC called CFCs (chlorofluorocarbons). There is actually a long history about this issue because of the impact on the ozone layer and ultraviolet rays. Before CFCs, the chemicals used for cooling were often flammable or harmful to breathe. In 1928, Thomas Midgley, Jr. introduced CFCs. This was an improvement at the time.

The agreement to phase out CFCs began as the Montreal Protocol. As of today, all the members of the United Nations have signed it. In total, there have been 196 countries participating. What does all of this mean for you? When you hire an HVAC company to install, repair or upgrade your home’s system, you can choose “green” options. Most companies are now offering lots of ways consumers can help protect their health and the environment. There are also things you can do to keep your system in good shape so that it works more effectively, which saves you money and helps to save the environment.

What’s HVAC

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