Central air conditioners are rated according to their Seasonal Energy Efficiency Ratio (SEER); the higher the SEER the more efficient the air conditioner. The current national efficiency standard is 10 SEER. The new standard raises the SEER requirement to 13, an efficiency improvement of 30%.
Overall the changes are good for the environment, and improve comfort and indoor air quality. However, implementation of the new regulations may be costly.
Beginning January 23rd 2006, 10 SEER air conditioning equipment will no longer be manufactured. Once the existing supply of 10 SEER equipment is depleted, only the new 13 SEER equipment will be available for replacement units. Unfortunately, the new 13 SEER air conditioner needs to be compatible with all the other components in the HVAC system. Here are some of the potential challenges:
• If a condenser is replaced, the evaporative coil and air handler
may need to be upgraded to 13 SEER.
• If the Freon lines are too small to handle a 13 SEER system, they
must be replaced.
• The 13 SEER evaporative coils can be up to 3-4 inches taller,
meaning sheet metal modifications may be needed to fit the new
system in the old space. If the space is too small, there will be costs
to rebuild the area or relocate the system.
• The system, as a whole may be larger and heavier, which may require
the use of an additional technician to complete the installation.
• The system requires about 40% more Freon to operate.
• The system may require a larger cement pad or larger roof stand
than the previous unit which may require additional modifications
and costs.
One way to help offset the cost of replacing or repairing your AC system is to invest in a home warranty Plan. Although the home warranty will not cover code upgrades or modifications, without a home warranty the entire cost of replacement and upgrades/modifications would be your responsibility. If you are purchasing a home, be sure that a home warranty plan is included in your
transaction. For more information on the 13 SEER regulations, visit www.energy.gov.
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