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  • Common HVAC Problems to Look For

    HVAC System HVAC System

    When homeowners experience problems with their air conditioning unit and heating systems, it calls for finances to make the repairs. It also involves the time it takes to fix the problem. However, when there is experienced and knowledgeable assistance, the result is improved efficiency. It is very critical to seek the help of a reputable HVAC contractor with the expertise necessary to resolve the issue in a fast, affordable and effective manner. When your HVAC system needs to be repaired, it can truly create havoc in the home. Below are some common problems that you may encounter, which will need professional help.

    Air Conditioning Unit

    A central air conditioning unit is the ideal option to keep the entire house much cooler and more comfortable. The common problem associated with an AC unit is the compressor’s failure to turn on. In addition, you may not feel cool air coming from the AC, which may be caused by insufficient air flow. If your AC unit is leaking water, it is also time to call a HVAC contractor.

    Furnaces

    All homeowners should be aware that a furnace should be serviced on an annual basis, if you want to have it properly functioning. If not, you may encounter problems. If parts need to be replaced, it is best to obtain the assistance of a qualified HVAC technician to install a new one, maintaining efficient operation of your furnace.

    Heat Pumps

    For your heat pumps, you should have a regular maintenance system, which can be provided by a HVAC contractor or HVAC company. In doing so, the heat pump will function at a higher comfort level.

    Air Handler

    The air handler is an important component of the HVAC system where it moves air efficiently and easily around the home. When this part is not working, your system will malfunction.

    Boiler System

    To keep your water heater operating at its peak, the boiler system also has to be properly and frequently maintained.

    Thermostat Control

    Your thermostat is essential to circulating heat and cool air within the home. You must know how to set the temperature to get the most energy efficiency. If your thermostat malfunctions, this objective won’t be met. So, make sure that it is good working condition. If flawed, you may need to call a HVAC contracting company.

    Conclusion

    Other problems that you may encounter are the leaking of your refrigerant, dirty air filters or clogging of your drain pipe clogged. Many of the common problems with your heating system and air conditioning unit are as a result of faulty installation, and poor or no maintenance. You can easily have your HVAC system working throughout the year by having regular maintenance from an HVAC service professional.

     

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  • What is a Pre-Charged Cooling System?

    Pre-Charged Cooling System

    A pre-charged cooling system is charged with refrigerant and doesn't require additional services for adding refrigerant. The cooling system is used to cool air that’s circulated throughout a home. The systems are usually installed by licensed professionals, such as HVAC technicians. The pre-charged units eliminate the need for removing the air from the system by creating a vacuum, brazing the metal parts together and then charging the system by adding refrigerant. The refrigerant is inside the units, which have no leaks. However, any connected parts could be a source for leaks and must also be sealed.

    Components
    Air conditioner units have three very important components. The AC condenser, evaporator and compressor must function in unison because the refrigerant repeatedly changes from liquid into a gas and from gas into a liquid. Warm air transfers heat to the coils and causes the liquid refrigerant to change into a gas. The compressor is used to pressurize the gas, which forces the gas to change into a liquid. A pre-charged unit is sealed to prevent leaks and usually connected to the system with quick connect fittings.

    Metal Tubing
    The cooling system has metal tubing that also holds the refrigerant, which moves through the system. The tubing is sealed and usually quite fragile. Therefore, the HVAC technicians must carefully handle the units and ensure that the refrigerant is not accidentally released through a crack in the tubing. There are quick connect fittings installed on the metal tubing, which are used to connect to the pre-charged unit that supplies refrigerant to the entire system. The metal tubing may also be connected by brazing, which is similar to soldering. However, brazing requires a much higher temperature because the filler metal has a higher melting point than solder.

    HVAC Technicians
    The HVAC technicians must have special licenses for handling refrigerant, which is consider to be a source of problems for the environment. There are refrigerant recovery machines that’re used to collect refrigerant from units. The refrigerant shouldn't be released into the environment and should ONLY be handled by licensed professionals. Therefore, leaks should also ONLY be repaired by technicians who are licensed to handle refrigerant.

    Benefits of the Pre-Charged Units
    The pre-charged units offer the additional feature that the components will probably not need to be checked for leaks, which is another service that is eliminated. Leaks are serious problems with cooling systems because the refrigerant can leak from the quick connect fittings, from a crack in the tubing or from a component, such as from a condenser. The HVAC technicians usually charge a system with refrigerant and then quickly search for the source of a leak. Therefore, the pre-charged units can save time during an installation and help to eliminate inspections for leaks.

  • Need to Know: Air Conditioning Freon and Refrigerant Leaks

    Freon Leak

    There are many tools that help air conditioning units function properly. One of those tools is a substance called Freon. It was created as a replacement for the dangerous coolant that use to accompany old cooling systems, such as refrigerators, freezers and air conditioners.

    Freon is a nonflammable, odorless and colorless liquid that has to be produced since it doesn’t occur naturally. It’s composed up of various amounts of chlorine and a host of many other different atoms that include fluorine, carbon and hydrogen.

    It’s a chemical that proves to be dangerous because of the potential impacts it ultimately causes to the environment, mostly with being a major factor in depleting the ozone levels. Such impacts have landed it to be banned in the U.S. with it only being manufactured through regulated material use. Before any item is disposed of, the Freon must be removed.

    More importantly, the process of handling Freon should only be attempted by licensed technicians who’ve been certified by the EPA. As far as the effects on humans are concerned, Freon isn’t dangerous unless it’s inhaled directly. Generally, a typical Freon leak isn’t enough to be harmful, but the presence can cause irregular heartbeats. This makes people with heart problems more susceptible to the fumes if they’re inhaled.

    Some of the common causes of Freon leakage include:
    • Physical damage
    • Condenser unit vibration
    • Stress points

    An outdoor unit that’s placed improperly outside can create strong vibrations that can weaken or fracture the lines that contain refrigerant. Physical damage that can cause leaks can be from other objects such as lawnmowers, which can cast rocks and sticks that can certainly cause damage to outside units. Stress points can also lead to Freon leaks which will be located near the units service valves.

    Identifying a leak can be quite easy if a homeowner knows what to look for such as:
    • The AC unit running at a specific temperature but not blowing any cool air.
    • The home is taking too long to cool.
    • Accumulated water near the furnace due to condensation.
    • The build-up of ice on copper lines from the AC unit to its outside coil.
    • An extremely high electric bill is also a very big indicator of a Freon leak. An AC unit with a Freon leak means that the unit has to work much harder to keep things cool, thus raising your electric bill. A Freon leak with only 10% leakage can raise the electric bill usage by double that amount.

    Small problems with Freon leaks can be attended to and fixed quite quickly once they’re identified and certified technicians are alerted not too long after they’re discovered. If problems aren’t handled and conditions are allowed to worsen, the repairs will take more time and money to take care of.

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