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| Frequently Asked Questions |
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What is a SEER?
There are special names for the efficiency ratings of various types of equipment. Air conditioning equipment is
rated by the Seasonal Energy Efficiency Rating, or SEER. The higher the SEER rating, the more efficient the
unit.
What does HSPF stand for?
There are special names for the efficiency ratings of varying types of equipment. Heat pump equipment in the
heating mode is rated by the Heating Seasonal Performance Factor, or HSPF. The higher the HSPF rating, the
more efficient the unit.
What does AFUE stand for?
There are special names for the efficiency ratings of various types of equipment. Gas furnaces are rated
according to their Annual Fuel Utilization Efficiency, or AFUE. The higher the AFUE rating, the more efficient the
unit.
Should outdoor units be covered in winter?
No. Heat pumps operate year-round and should never be covered. Similarly, air conditioners that operate
seasonally are built to withstand an outdoor environment and should not be covered.
Should a thermostat be set to "auto" or "on"?
Preferably auto. That way, the fan operates only when the temperature requires it. This is the most used and
the most efficient setting. However, there are advantages to using the "on" setting. Air is constantly filtered
through the unit's air filter, and the constantly circulating air results in an even temperature throughout the
house.
Can shrubs or flowers be planted around an outdoor unit?
Yes. However, we recommend that plants be no closer than 18 inches to the unit. This allows for plenty of room
for air circulation in and out of the unit. Without this room for air circulation, the unit could overheat, resulting in
a premature need for service.
If an outdoor unit needs replacing, should the indoor unit be replaced too?
Yes. Air conditioning and heating units are designed to operate as a complete, matched system. The efficiency
rating is based on the entire system. Replacing the entire system ensures the system will be reliable and
efficient.
How do I know what size unit our house needs?
Ask a Carmona Comfort Crew member. They will consider many factors before making a recommendation.
Factors like … size of the house, climate, the number and type of windows installed, insulation, and even the
number of people living in the house.
What is the difference between a split system and a package unit?
A split system uses indoor and outdoor components to provide a complete home comfort system. A package
unit or self-contained unit requires no external coils, air handlers, or heating units.
There are special names for the efficiency ratings of various types of equipment. Air conditioning equipment is
rated by the Seasonal Energy Efficiency Rating, or SEER. The higher the SEER rating, the more efficient the
unit.
What does HSPF stand for?
There are special names for the efficiency ratings of varying types of equipment. Heat pump equipment in the
heating mode is rated by the Heating Seasonal Performance Factor, or HSPF. The higher the HSPF rating, the
more efficient the unit.
What does AFUE stand for?
There are special names for the efficiency ratings of various types of equipment. Gas furnaces are rated
according to their Annual Fuel Utilization Efficiency, or AFUE. The higher the AFUE rating, the more efficient the
unit.
Should outdoor units be covered in winter?
No. Heat pumps operate year-round and should never be covered. Similarly, air conditioners that operate
seasonally are built to withstand an outdoor environment and should not be covered.
Should a thermostat be set to "auto" or "on"?
Preferably auto. That way, the fan operates only when the temperature requires it. This is the most used and
the most efficient setting. However, there are advantages to using the "on" setting. Air is constantly filtered
through the unit's air filter, and the constantly circulating air results in an even temperature throughout the
house.
Can shrubs or flowers be planted around an outdoor unit?
Yes. However, we recommend that plants be no closer than 18 inches to the unit. This allows for plenty of room
for air circulation in and out of the unit. Without this room for air circulation, the unit could overheat, resulting in
a premature need for service.
If an outdoor unit needs replacing, should the indoor unit be replaced too?
Yes. Air conditioning and heating units are designed to operate as a complete, matched system. The efficiency
rating is based on the entire system. Replacing the entire system ensures the system will be reliable and
efficient.
How do I know what size unit our house needs?
Ask a Carmona Comfort Crew member. They will consider many factors before making a recommendation.
Factors like … size of the house, climate, the number and type of windows installed, insulation, and even the
number of people living in the house.
What is the difference between a split system and a package unit?
A split system uses indoor and outdoor components to provide a complete home comfort system. A package
unit or self-contained unit requires no external coils, air handlers, or heating units.