What are some of the more simple problems that affect the operation of my system?

Dirt! yes, dirt.  It is the most common problem affecting the operation and efficiency of any mechanical system.  Did you know that dirt can build up on you air conditioner’s evaporator coil and condenser coil? This is a problem because dirt reduces airflow and can keep your coils from absorbing heat, which makes your air conditioner much less efficient and causing high electric bills. Changing your filters regularly will cut down on this problem, as will annual maintenance. An experienced HVAC technician can examine your coils during your tune-up to see if they need to be cleaned.

How often does air conditioning need to be replaced?

You’ll hear a lot of variation on this question, however most modern air conditioning units will last between 10-15 years if they are properly maintained. That maintenance is the real key to reducing the costly expense of replacement. Keep in mind as well that newer systems designed to minimize work load and provide energy efficient cooling can last even longer if properly maintained. If you have your cooling unit serviced annually and checked periodically, anywhere from 15-20 years is possible.

What are some indicators that it is time to replace a unit?

If you notice that your unit is starting to wear down, it doesn’t always mean replacement is necessary.  However, some issues are more severe than others. One indicator will be an increase in electricity used to run your unit.  You may also notice that the cooling unit starts to turn on and off more frequently or never seems to shut down.

If you have a newer model that is less than 5 years old, most issues should be handled through regular maintenance.  Have your coils cleaned and cooling units checked at least once a year.

However, if you have a unit that’s more than 10 years old, a replacement unit may serve to alleviate these problems and cut down on you energy use, as most new models are far more efficient than those made 10 or more years ago.

Another way to look at replacement is to ask yourself what it is costing to run and maintain that old unit in comparison to the cost of a new one.   If the operational cost is 25% of a new unit you could possibly pay for it in four years.  You know it is time to trade in your old car when it starts "nickel and diming" you to death.  The same is true with HVAC equipment.  

What type of air conditioner should I get?

There are many different types and brands of HVAC equipment.  Most are excellent. Usually what drives the cost is the extras that come with the unit (such as types of safeties to protect your investment, automated controls, economizers, etc).  Often a popular name brand will be more expensive.  Budget and personal preference are also factors to consider.  It is our goal to offer our years of experience to help guide you in selecting what best fits your application.

How can I increase the efficiency of my HVAC equipment?

To help your unit run more efficiently make sure all coils and filters are clean, and that nothing is obstructing the supply and return air vents.  

You may want to set the thermostat to a higher temperature.  For every degree you raise your thermostat above 72 degrees (up to 78), you will save 8% of your energy costs.  

If you can, block direct sunlight from the east and west with awnings or shades.  If possible reduce the amount of time the doors and windows are opened while the unit is operational.

Lessen the use, if possible, of heat producing appliances during the day when ventilation is less available.  

Another consideration is the proper operation of you units economizer. If your unit does not have one or it is not working properly you are loosing out on free cooling.  An economizer will use the cooler outside air to bring down the temperature inside the building without turning on the unit compressor(s).  This means a much lower electric bill!