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Title: MAINTAINING HOME AIR CONDITIONERS

Author: Terry Manlick

Article:
MAINTAINING HOME AIR CONDITIONERS

Even though you may not be a qualified HVAC technician there are
several things you can do to you improve your air conditioner's
efficiency and prolong it's life. As contractors prices increase
and pay raises decrease you may not be able to have a air
conditioning technician clean and check your system every year
like most manufactures recommend. It is still a good idea to
have a qualified service man check your refrigerant pressures
and temperatures every few years to obtain maximum system
efficiency. Many things done on a preventive maintenance can be
done by most home owners and do not require any specialty tools
or instruments.

Many people don't realize that the furnace filter they are
accustom to changing is also used for your central air system.
Make sure to inspect your system air filter monthly and replace
as needed. A clean air filter is just as if not more important
for air conditioning than heating. You will also want to make
sure most of the supply registers for you system are open. Air
conditioners are sized for a specific amount of air flow so if
it is restricted by closed registers problems may occur. Be sure
the drain line from the indoor coil or evaporator is clear and
that there are no kinks in the hose. If this line seems very
dirty you can pour common house hold bleach through it to kill
growing bacteria.

Next you will want to turn the power off to the out door unit or
condenser at the breaker and remove all grass and shrubs growing
with in 8-10 inches of the coil that surrounds the air
conditioner. Use a garden hose to soak down the coil surface
area making sure not to use so much pressure that you damage the
coil fins. Apply a condenser coil cleaner product that comes in
a aerosol spray can or mixable concentrate and let soak for 3-5
minutes. Remove the units top and flush coil clean with a garden
hose preferably from the inside out. Oil the condenser fan motor
with 4-5 drops of a light weight oil, provided the motor has
oiling ports.

Reassemble and restore power to the air conditioner. Set your
thermostat to cool and below room temperature. After letting in
run for 5-10 minutes check the discharge temperature at one of
the supply registers closest to the indoor air handler. A quick
rule of thumb is that you should have a 15 to 20 degree
difference in supply air temperature and room air temperature.
So if it is 76 degrees in the house your supply air temperature
should be around 56 to 61 degrees. If the temperature difference
is less than 15 degrees you may have to have a air conditioning
technician check the refrigerant levels.

Coil Cleaner and other HVAC maintenance products can be
purchased online at www.mainsupplies.com

Information provided by Terry Manlick at HVAC Maintenance &
Supplies at www.mainsupplies.com

About the author:
Terry Manlick of HVAC Maintenance & Supplies
www.mainsupplies.com

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